WO2018126894A1

WO2018126894A1 - Power configuration method and related device

Info

Publication number: WO2018126894A1
Application number: PCT/CN2017/117543
Authority: WO
Inventors: 王婷; 窦圣跃; 李元杰
Original assignee: 华为技术有限公司
Priority date: 2017-01-06
Filing date: 2017-12-20
Publication date: 2018-07-12

Abstract

Disclosed in an embodiment of the present invention are a power configuration method and a related device. The method comprises: receiving, by a first network device, a first power configuration parameter and a second power configuration parameter transmitted by a second network device; and upon receiving reference signals and data of a first antenna port set and a second antenna port set, determining, according to the first power configuration parameter and the reference signal of the first antenna port set, power of the data from the first antenna port set, and determining, according to the second power configuration parameter and the reference signal of the second antenna port set, power of the data from the second antenna port set, such that demodulation can be respectively performed on the data transmitted by the corresponding antenna port sets according to the acquired power. The present invention improves accuracy of demodulation performed on data from multiple antenna port sets, thereby enhancing data transmission performance.

Description

Power configuration method and related equipment

This application claims the priority of the Chinese Patent Application filed on May 5, 2017, the Chinese Patent Application No. CN201710314209.9, the application entitled "A Power Configuration Method and Related Equipment", the entire contents of which are incorporated by reference. In this application. Among them, the application for application number CN201710314209.9 is required to be submitted to the Chinese Patent Office on April 1, 2017, the application number is CN201710213795.8, and the application for the name of "a power configuration method and related equipment" is the priority of the Chinese patent application; The application for the application number CN201710213795.8 is filed on January 6, 2017, the priority of the Chinese Patent Application, filed on Jan. 6, 2017, the application number is 201710009702.X, and the application name is "a power configuration method and related equipment".

Technical field

The present invention relates to the field of communications technologies, and in particular, to a power configuration method and related devices.

Background technique

Next-generation mobile communication systems require high-capacity and high-quality data transmission, and Multiple-Input Multiple-Output (MIMO) technology is considered to be one of the key technologies for future high-speed data transmission. In the conventional centralized MIMO system, multiple transmit antennas are concentrated on the base station. Unlike centralized MIMO, multiple transmit antennas of a distributed MIMO system are distributed in different geographical locations, and each pair of transceiver links is more independent. It has the advantages of large capacity, low power consumption, better coverage, and low electromagnetic damage to the human body, and is considered as one of the alternatives for future wireless communication systems. In the distributed MIMO scenario, in order to improve the signal reliability of edge users and to improve the throughput of edge cells, it may be considered to use Spatial-Frequency Block Coding (SFBC) or multi-point multi-stream transmission. The method transmits data for a user equipment (User Equipment, UE).

When the UE receives data from multiple transmission points, the power of the downlink data channel between each transmission point and the UE is different, and the power of the downlink data channel is generally used for downlink data sent by the transmission point through the downlink data channel. Demodulation is performed. Therefore, when demodulating downlink data, the UE needs to know the power of the downlink data channel between each transmission point and the UE. Generally, the upper layer only configures a set of power configuration parameters for the UE, and the UE can obtain the power of the downlink data channel between the transmission point and the UE according to the set of power configuration parameters. If there are multiple transmission points for the UE to transmit data, the UE It may not be possible to accurately demodulate the data transmitted at each transmission point.

Summary of the invention

The embodiment of the invention discloses a power configuration method and related equipment, which can improve the accuracy of demodulating data transmitted by multiple transmission points.

A first aspect of the embodiments of the present invention discloses a power configuration method, where the method may include:

The first network device receives the first power configuration parameter and the second power configuration parameter sent by the second network device, and receives the reference signal and data sent by the second network device, where the reference signal includes a reference signal of the first antenna port set And a reference signal of the second antenna port set. The first network device may determine a first power of the received data (data from the first antenna port set) according to the first power configuration parameter and the reference signal of the first antenna port set, and according to the second power configuration parameter and the second antenna port The set reference signal determines the number of receptions According to the second power (data from the second antenna port set).

The data may be downlink data or uplink data, and power configuration parameters, reference signals, and data may be sent in the same time unit or in different time units.

In the embodiment of the present invention, the first network device receives two power configuration parameters sent by the second network device, and when receiving the reference signal and the data from the multiple antenna port sets, respectively, according to the power configuration corresponding to the antenna port set The parameter and the reference signal determine the power of the data from the antenna port set, so that the data sent by the corresponding antenna port set can be demodulated according to the obtained power, thereby obtaining a more accurate demodulation result and improving data transmission performance.

Optionally, the first network device may further receive the first power configuration parameter sent by the second network device, and according to the first power configuration parameter and the reference, when the reference signal and the data from the first antenna port set are received. The power of the signal determines the power of the data from the first set of antenna ports.

Optionally, the power configuration parameter is determined according to demodulation reference signal antenna port group information or codeword information or quasi-co-location indication information or layer number information corresponding to transmission point information or antenna port number information; or

The power configuration parameter is determined according to demodulation reference signal antenna port group information or codeword information or quasi-co-location indication information or pattern information of a demodulation reference signal antenna port corresponding to the transmission point information; or

The power configuration parameter is determined according to the demodulation reference signal antenna port group information or the codeword information or the quasi-co-location indication information or the layer number information corresponding to the transmission point information or the number of antenna port numbers and the pattern information of the demodulation reference signal antenna port. . Optionally, the power configuration parameter includes a power ratio.

Optionally, if all the antenna port sets share one power configuration parameter, which may be predefined in the protocol, the second network device does not need to send the power configuration parameter to the first network device, and the first network device may directly according to the reference signal power. And the power configuration parameter determines the power of the received data.

Optionally, the first network device may further receive a third power configuration parameter sent by the second network device.

Optionally, any one of the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter includes at least one of a beam identifier, a beam antenna port, a reference signal power, and a power ratio.

Optionally, the third power configuration parameter may be sent in the same signaling as the first power configuration parameter and the second power configuration parameter, or may be sent in different signaling. The third power configuration parameter does not define one power configuration parameter, and may be a power configuration parameter set composed of multiple power configuration parameters.

The second network device can send multiple power configuration parameters by using one signaling, which can reduce the number of signaling interactions, and the first network device can obtain multiple power configuration parameters directly according to one signaling, which is simple.

In the embodiment of the present invention, the beam identifier/beam antenna port is bound to the power ratio, and may be based on a demodulation reference signal, such as a user-specific reference signal, or a beam when there is no cell-specific reference signal (CRS). The reference signal, or other reference signals such as a moving reference signal or a synchronization signal, determine the power of the received data, thereby achieving correct demodulation of the data and improving demodulation performance.

The beam reference signal refers to a reference signal related to the beam. For example, the second network device transmits one or more signals according to one or more beams, and may perform precoding or analog beamforming before the signal is transmitted, for example, a synchronization signal. , broadcast signals, beam signals, etc.

The mobile reference signal refers to a reference signal used for beam tracking or position tracking of the terminal device.

A beam consists of one or more (logical) antennas, through a baseband precoding matrix or RF Phase shifting forms the weight of each (logical) antenna, called a beam.

The beam reference signal may be characterized by one or more of the antenna port, the time-frequency resource, or the number of the beam, or may be characterized in other manners, which is not limited by the embodiment of the present invention.

The synchronization signal refers to a signal used for synchronization between the first network device and the second network device in the time domain and/or the frequency domain, such as a primary synchronization signal in a Long Term Evolution (LTE) system and/or The auxiliary synchronization signal may also be characterized in other manners, which is not limited by the embodiment of the present invention.

Optionally, the reference signal in the embodiment of the present invention may include at least one of a demodulation reference signal and a first reference signal, where the first reference signal may include at least one of a beam reference signal, a motion reference signal, and a synchronization signal. . The power ratio in the power configuration parameter may include at least one of the following:

1) A ratio of the data power of the set of antenna ports of the demodulation reference signal on the demodulated reference signal symbol to the power of the demodulation reference signal on the set of antenna ports.

2) A ratio of the data power of the set of antenna ports of the demodulation reference signal on the demodulated reference signal symbol to the power of the first reference signal.

3) A ratio of the data power of the set of antenna ports of the demodulation reference signal on the undemodulated reference signal symbol to the power of the demodulation reference signal on the set of antenna ports.

4) The ratio of the data power of the set of antenna ports of the demodulation reference signal on the undemodulated reference signal symbol to the data power of the set of antenna ports of the demodulation reference signal on the demodulated reference signal symbol.

5) A ratio of the data power of the set of antenna ports of the demodulation reference signal on the undemodulated reference signal symbol to the power of the first reference signal.

Specifically, the specific manner in which the first network device receives the first power configuration parameter and the second power configuration parameter sent by the second network device may be:

The first network device acquires the first power configuration parameter and the second power configuration parameter from the second network device by using Radio Resource Control (RRC) signaling or physical layer signaling. Alternatively, other signaling, such as Medium Access Control (MAC) signaling, may be used, and is not specifically limited herein.

Optionally, any one of the first antenna port set and the second antenna port set includes at least one antenna port; any one of the first antenna port set and the second antenna port set and at least one code Word correspondence; any one of the first antenna port set and the second antenna port set corresponds to at least one transport layer.

That is to say, each antenna port set may include at least one antenna port; each antenna port set may be used to transmit at least one codeword, or multiple antenna port sets may be used to transmit one codeword, and different antenna port sets may correspond Different transport layers of the same codeword; one codeword may correspond to one transport layer or multiple transport layer data; each antenna port set may also be used to transmit data of at least one transport layer; or multiple antenna port sets may also be used The data of the same transport layer is transmitted.

The correspondence between the antenna port set and the codeword and/or the transport layer may be indicated by the second network device in Downlink Control Information (DCI) information. Or the pre-defined, the RRC signaling or the MAC signaling, or the physical layer signaling, which is not limited in the embodiment of the present invention.

It can be understood that, by using the RRC signaling, the sending time interval can be relatively long, and the power configuration parameters can be configured in a semi-static manner, which is applicable to a scenario with slow change and reduced signaling overhead. DCI signaling enables dynamic configuration. Applicable to scenarios with fast changes, signaling overhead needs further consideration. Therefore, multiple signalings can be pre-configured through the two-level indication, and further indications are used in the case of the first two. The configuration interval and the signaling overhead are moderate.

Further, different power configurations for different codewords can improve the decoding performance of the codeword. The same power configuration can be set in one codeword to reduce signaling overhead. Different power configurations for different transport layers can improve the transmission performance of different layers. Different power configurations are configured for the antenna port set. When one antenna port set includes multiple antenna ports, the signaling overhead can be reduced.

Optionally, the method may further include:

Receiving, by the first network device, information for indicating a correspondence between at least one of a transmission layer number, an antenna port, a codeword, and a scrambling identifier and a power configuration parameter, where the second network device sends; or

Any one of the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter further includes a power configuration identifier for indicating the power configuration parameter, where the first network device receives the second network device for sending Information indicating a correspondence between at least one of a number of transmission layers, an antenna port, a codeword, and a scrambling identifier and the power configuration identifier.

That is, each power configuration parameter may be indicated by a unique power configuration identifier, and the first network device may receive at least one of the number of transmission layers, the antenna port, the codeword, and the scrambling identifier sent by the second network device. Information relating to a power configuration parameter or a power configuration identifier.

The information may be sent in the same time unit as the power configuration parameter, or may be sent in different time units.

Optionally, the method may further include:

Receiving, by the second network device, information for indicating a correspondence between at least one of a transmission layer, an antenna port, and a codeword and a beam identifier, and receiving, by the second network device, an indicator beam Information identifying the correspondence between the power configuration parameters and the power configuration parameters.

Or, in a case where any one of the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter further includes a power configuration identifier for indicating the power configuration parameter, the first network device receives the first Information for indicating a correspondence between at least one of a number of transmission layers, an antenna port, and a codeword and a beam identifier, and receiving, by the second network device, an indicator for indicating a beam identifier and a power configuration identifier Information about the correspondence.

The information used to indicate the correspondence between the number of the transmission layer, the antenna port, and the codeword and the beam identifier, and the information used to indicate the correspondence between the beam identifier and the power configuration parameter or the power configuration identifier may be The unit sends the packets at the same time. They can also be sent in different time units. They can be sent in the same signaling or in different signaling, for example, through RRC signaling or MAC signaling, or through physical layer signaling. send.

The second network device does not need to carry each power configuration parameter in the signaling, and only needs to set a power configuration identifier for indicating each power configuration parameter, and the power configuration identifier is carried in the signaling. In general, the power configuration identifier may be smaller than the data amount of the corresponding power configuration parameter, which can reduce the amount of data carried by the signaling.

In the embodiment of the present invention, the second network device may use different powers to transmit data for different beams. Therefore, different beam identifiers may correspond to different power configuration parameters, and improve data transmission performance under different beams.

In addition, the beam identification corresponds to a set of power configuration parameters, which can be reduced when the second network device is configured. The signaling overhead can be used to indicate the relevant beam information when it is used.

Further, the different beam identifiers may correspond to the codeword, the transport layer, and the antenna port, that is, different codewords or transport layers or antenna ports may be sent through different beams, and the corresponding codeword, transport layer, and antenna port are transmitted. The performance of the data.

A second aspect of the embodiments of the present invention discloses a power configuration method, where the method may include:

The second network device sends the first power configuration parameter and the second power configuration parameter, and the transmitted reference signal and data, to the first network device, where the reference signal includes a reference signal of the first antenna port set and a second antenna port set Reference signal. The first power configuration parameter and the reference signal of the first antenna port set are used to determine a first power of the received data, and the second power configuration parameter and the reference signal of the second antenna port set are used to determine a second power of the received data.

That is to say, the first network device receives two power configuration parameters, and when receiving the reference signal and the data from the multiple antenna port sets, may determine according to the power configuration parameters and reference signals corresponding to the antenna port set respectively. The power of the data from the antenna port set can demodulate the data sent by the corresponding antenna port set according to the obtained power, thereby obtaining a more accurate demodulation result and improving data transmission performance.

Optionally, the data may be downlink data or uplink data, and power configuration parameters, reference signals, and data may be sent in the same time unit or in different time units.

Optionally, the second network device may further send the first power configuration parameter to the first network device, so that the first network device receives the reference signal and the data from the first antenna port set according to the first power. The power of the parameters and reference signals are configured to determine the power of the data from the first set of antenna ports.

Optionally, the second network device may further send the third power configuration parameter to the first network device.

In the embodiment of the present invention, the beam identifier/beam antenna port is bound to the power ratio, and may be based on a demodulation reference signal, such as a user-specific reference signal, or a beam reference signal, or a mobile reference signal or a synchronization signal, etc., when there is no CRS. The reference signal determines the power of the received data, thereby achieving correct demodulation of the data and improving demodulation performance.

1) the data power of the antenna port set of the demodulation reference signal on the demodulated reference signal symbol and the antenna The ratio of the power of the demodulation reference signal on the set of ports.

Specifically, the specific manner in which the second network device sends the first power configuration parameter and the second power configuration parameter to the first network device may be:

The second network device configures the first power configuration parameter and the second power configuration parameter by using RRC signaling or MAC signaling, or sends the first power configuration parameter and the second power configuration parameter to the first network device by using physical layer signaling.

The correspondence between the antenna port set and the codeword and/or the transport layer may be indicated by the second network device in the DCI information. Or the pre-defined, the RRC signaling or the MAC signaling, or the physical layer signaling, which is not limited in the embodiment of the present invention.

It can be understood that, by using the RRC signaling, the sending time interval can be relatively long, and the power configuration parameters can be configured in a semi-static manner, which is applicable to a scenario with slow change and reduced signaling overhead. The DCI signaling can implement dynamic configuration and is applicable to scenarios with fast changes. The signaling overhead needs to be further considered. Therefore, multiple signalings can be configured in advance by using two levels of indications, and further indications are used in the case of specific use, which is an implementation of the first two, and the configured interval and signaling overhead are moderate. The first level may adopt RRC signaling or MAC signaling or physical layer signaling, and the second level may also adopt RRC signaling or MAC signaling or physical layer signaling, and the two levels may use the same or different types of signaling, or The other signaling is not limited in the embodiment of the present invention.

Optionally, the method may further include:

The second network device sends, to the first network device, information indicating a correspondence between at least one of a transmission layer number, an antenna port, a codeword, and a scrambling identifier, and a power configuration parameter; or

Any one of the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter further includes a power configuration identifier for indicating the power configuration parameter, and the second network device sends the first network device to the first network device Information indicating a correspondence between at least one of a transmission layer number, an antenna port, a codeword, and a scrambling identifier and the power configuration identifier.

Optionally, the method may further include:

The second network device sends, to the first network device, information indicating a correspondence between at least one of the number of transmission layers, the antenna port, and the codeword, and the beam identifier, and receiving the identifier for transmitting the second network device Information corresponding to the power configuration parameters.

Or, in a case where any one of the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter further includes a power configuration identifier for indicating the power configuration parameter, the second network device is in the first Transmitting, by the network device, information indicating a correspondence between at least one of a transmission layer number, an antenna port, and a codeword, and a beam identifier, and receiving, by the second network device, an indication between the beam identifier and the power configuration identifier Correspondence information.

In addition, the beam identification corresponds to a set of power configuration parameters, and when the second network device is configured, the signaling overhead can be reduced, and the relevant beam information can be indicated in specific use.

A third aspect of the embodiments of the present invention discloses a network device, which may include a receiving module and a processing module, for performing the power configuration method described in the first aspect. Receiving a plurality of power configuration parameters, and when receiving data from the antenna port set and the reference signal, determining power of data from the antenna port set according to power configuration parameters and reference signals corresponding to the antenna port set, thereby implementing Accurate demodulation of received data to improve data transmission performance.

A fourth aspect of the embodiments of the present invention discloses another network device, which may include a processor, a transceiver, and a memory, wherein: the processor, the transceiver, and the memory are connected to each other; and the transceiver is controlled by the processor for transmitting and receiving messages. The memory is for storing a set of program code, and the processor is configured to call the program code stored in the memory to execute the power configuration method disclosed in the first aspect above. By receiving a plurality of power configuration parameters and receiving data from the antenna port set and the reference signal, according to power configuration parameters and references corresponding to the antenna port set The signal determines the power of the data from the set of antenna ports, thereby enabling accurate demodulation of the received data and improving data transmission performance.

A fifth aspect of the embodiments of the present invention discloses a network device, which may include a sending module, configured to perform the power configuration method described in the second aspect. By transmitting a plurality of power configuration parameters, when receiving the data from the antenna port set and the reference signal, the receiving end may determine the power of the data from the antenna port set according to the power configuration parameter and the reference signal corresponding to the antenna port set. Thereby, accurate demodulation of the received data is realized, and data transmission performance is improved.

A sixth aspect of the embodiments of the present invention discloses a network device, which may include a processor, a transceiver, and a memory, wherein: the processor, the transceiver, and the memory are connected to each other; and the transceiver is controlled by the processor to send and receive messages. The memory is for storing a set of program code, and the processor is configured to call the program code stored in the memory to execute the power configuration method disclosed in the second aspect above. By transmitting a plurality of power configuration parameters, when receiving the data from the antenna port set and the reference signal, the receiving end may determine the power of the data from the antenna port set according to the power configuration parameter and the reference signal corresponding to the antenna port set. Thereby, accurate demodulation of the received data is realized, and data transmission performance is improved.

Embodiments of the present invention have the following beneficial effects:

In the embodiment of the present invention, the first network device receives two power configuration parameters sent by the second network device, and when receiving the reference signal and the data from the multiple antenna port sets, respectively, according to the power configuration corresponding to the antenna port set The parameter and the reference signal determine the power of the data from the antenna port set, so that the data sent by the corresponding antenna port set can be demodulated according to the acquired power, thereby improving the accuracy of demodulating the data of the multiple antenna port sets. Improve data transmission performance.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work.

FIG. 1 is a schematic diagram of a scenario for cooperative transmission of multiple antenna stations according to an embodiment of the present invention; FIG.

2 is a schematic flowchart of a power configuration method according to an embodiment of the present invention;

3 is a schematic flowchart diagram of another power configuration method according to an embodiment of the present invention;

4 is a schematic flow chart of still another power configuration method according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of another network device according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of still another network device according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of still another network device according to an embodiment of the present invention.

detailed description

The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

The techniques described herein can be used in various communication systems, such as 5G or next generation communication systems, such as Global System for Mobile communications (GSM), Code Division Multiple Access (CDMA) systems, time divisions. Multiple Division Multiple Access (TDMA) system, Wideband Code Division Multiple Access Wireless (WCDMA), Frequency Division Multiple Addressing (FDMA) system, Orthogonal Frequency Division Multiple Access (Orthogonal) Frequency-Division Multiple Access (OFDMA) system, Single-Carrier Frequency Division Multiple Access (SC-FDMA) system, General Packet Radio Service (GPRS) system, and other such communication systems.

The main scenario of the embodiment of the present invention is based on the existing Coordinated Multiple Points Transmission/Reception (CoMP), and the existing MIMO technology (including the diversity technology for improving transmission reliability and the data transmission rate). Multi-streaming technology is combined with coordinated multi-point transmission to better serve users.

The embodiment of the present invention may also be a single point transmission, a scene with multiple panels at a transmission point, or a coordinated multi-point transmission, a single-panel or multi-panel transmission point, or a single-point transmission, and multiple transmission points. Antenna scene.

The embodiments of the present invention are applicable to scenarios of a homogeneous network and a heterogeneous network, and are not limited to the types of transmission points, for example, can be applied to a macro base station and a macro base station, a micro base station and a micro base station, and between a macro base station and a micro base station. Multi-point coordinated transmission.

The embodiments of the present invention can be applied to a Time Division Duplexing (TDD) system, and can also be used in a Frequency Division Duplexing (FDD) system, which can be used in a single carrier system or in a single carrier system. Multi-carrier systems, as well as high-frequency (above 6GHz band) or low-frequency (below 6GHz band) communication systems.

Hereinafter, some of the terms in the embodiments of the present invention will be explained to facilitate understanding by those skilled in the art.

Terminal device: A device that provides voice and/or data connectivity to a user, and may include a handheld device with wireless connectivity, or a processing device connected to a wireless modem. The terminal device can communicate with the core network via a Radio Access Network (RAN) to exchange voice and/or data with the RAN. The terminal device may specifically include a UE, a wireless terminal device, a mobile terminal device, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile Station, a Remote Station, and a Remote Station. Access Point (AP), Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, etc. . For example, it may include a mobile phone (or "cellular" phone), a computer with a mobile terminal device, a portable, pocket, handheld, computer built-in or in-vehicle mobile device. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), etc. .

Network equipment: refers to a device in an access network that communicates with a terminal device through one or more sectors on an air interface, and may be a base station, such as an access point. The base station may be configured to convert the received air frame into an Internet Protocol (IP) packet, as a router between the terminal device and the rest of the access network, wherein the rest of the access network may include an IP. The internet. The base station can also coordinate attribute management of the air interface. Base station can Either a Radio Network Controller (RNC) or a Base Station Controller (BSC), or an evolved base station (evolutional Node) in an evolved LTE system (LTE-Advanced, LTE-A) B, NodeB, eNB or e-NodeB), which is not limited in the embodiment of the present invention.

Coordinated Multiple Points Transmission/Reception (CoMP): A plurality of transmission points separated geographically, and cooperatively participate in transmitting data for one terminal device, for example, through a Physical Downlink Shared Channel (PDSCH) to a terminal. The device transmits data, or can jointly receive data sent by a terminal device. For example, the data sent by the terminal device can be received through a Physical Uplink Shared Channel (PUSCH).

Multi-point SFBC transmission: The antennas of two or more transmission points distributed transmit signals in SFBC mode.

Multi-point multi-stream transmission: two or more transmission points of the distribution are independently pre-coded to transmit different data streams and different code blocks. Joint transmission in CoMP, different transmission points transmit the same data stream to the same terminal device.

Multi-panel structure: Each transmission point can have multiple panels, and the panels can be evenly arranged or non-uniformly arranged or other forms. For example, a transmission point may have four panels, and the antenna port port may be formed by an antenna array of a panel, or may be formed by an antenna array on a plurality of panels.

MIMO technology: refers to a technique that uses multiple transmit and receive antennas at the transmitting end and the receiving end to transmit and receive signals through multiple antennas at the transmitting end and the receiving end, thereby improving communication quality. It can also be a multi-antenna technology, which can improve system reliability, spatial multiplexing, system capacity, and beamforming to enhance cell coverage through spatial diversity.

Transmission point: A device that can transmit data to a terminal device. In the embodiment of the present invention, a transmission point may be considered as a set of antenna ports, and a set of antenna ports may also include a port of multiple transmission points, which is not limited in the embodiment of the present invention. The set of antenna ports here can be a hardware concept or a logical concept. Wherein, one antenna port set may include at least one port. For example, the transmission point may be a base station, and one antenna port set corresponds to one base station, then different base stations may be regarded as different transmission points; or the transmission point may be a cell, and one antenna port set corresponds to one cell, then different cells may be regarded as different Transmission point; or a cell may also include multiple transmission points, and one cell includes multiple antenna port sets. For example, a plurality of indoor baseband processing units (BBUs) and remote radio units (RRUs) can be deployed in the coverage of a cell, and the set of antenna ports corresponding to each group of BBU+RRUs can be regarded as A transmission point, and the like, the embodiment of the present invention does not limit the concept of a transmission point, as long as each transmission point can separately transmit data to the terminal device.

For the same transmission point, the power configuration parameters used at different times may be the same or different. In addition, if the same cell includes multiple transmission points, the cell may correspond to one power configuration parameter, and may also correspond to multiple power configuration parameters.

Power configuration parameters: A set of power configuration parameters may correspond to a set of antenna ports, that is, a power configuration parameter of an antenna port set may be used to determine the power of data corresponding to the antenna port set. Different antenna port sets may correspond to the same set of power configuration parameters, and may also correspond to different power configuration parameters.

The first network device may include a common terminal device, or may also include a terminal device that is responsible for the relay task, or may also include a base station, which is not limited in the embodiment of the present invention.

The second network device may include a base station, or may also include a common terminal device, or may also include The terminal device that bears the relay task is not limited in the embodiment of the present invention.

The type of the first network device and the type of the second network device may be the same or may be different. For example, in a device-to-device (D2D) scenario, the first network device and the second network device may both be base stations, or may be terminal devices, or may have other possible settings.

In the embodiment of the present invention, when the second network device is a transmission point (such as a base station), the first network device may be a terminal device, or may be a transmission point (such as a base station); when the second network device is a terminal device, the first network is used. The device may be a terminal device or a transmission point (such as a base station), which is not limited in the embodiment of the present invention. That is to say, the data received by the first network device may be uplink data or downlink data.

Data: can refer to downlink data, that is, data transmitted by the transmission point to the terminal device through the downlink data channel between the terminal device, such as PDSCH data; or uplink data, that is, the uplink between the terminal device and the transmission point Data reported by the data channel to the transmission point, such as PUSCH data.

It should be noted that the terms "system" and "network" in the embodiments of the present invention may be used interchangeably, and "cell" and "carrier" may be used interchangeably, and "number of data streams" and "number of transmission layers" The concepts can be used interchangeably. "At least one" means one or more, and "multiple" means two or more. "and/or", describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately. In addition, the character "/", unless otherwise specified, generally indicates that the contextual object is an "or" relationship.

For a better understanding of a power configuration method and related device disclosed in the embodiments of the present invention, the application scenarios applicable to the embodiments of the present invention are described below. Please refer to FIG. 1. FIG. 1 is a schematic diagram of a scenario for cooperative transmission of multiple antenna stations according to an embodiment of the present invention. In the scenario shown in FIG. 1, the ring on the left represents the coverage of cell 1, which includes two transmission points, such as transmission point 1 and transmission point 2 shown in FIG. 1, and the ring on the right side indicates the coverage of cell 2. Also included are two transmission points, such as transmission point 3 and transmission point 4 as shown in FIG. Among them, the transmission point 1, the transmission point 2, the transmission point 3, and the transmission point 4 all participate in cooperative transmission for the terminal device.

In the scenario shown in FIG. 1 , after receiving the downlink data sent by the transmission point 1, the transmission point 2, the transmission point 3, and the transmission point 4 respectively, the terminal device may separately configure parameters and reference signals according to the power of each transmission point ( The power of Reference Signal, RS) calculates the power of the data at the transmission point.

The reference signal may be a demodulation reference signal, a reference signal for demodulating the data, such as a user-specific reference signal (UE-specific RS), or a beam reference signal (Bam Reference Signal, BRS), that is, A beam beam-related reference signal, such as a transmission point, transmits one or more signals according to one or more beams, and may perform precoding or analog beamforming before the signal is transmitted, such as a synchronization signal, a broadcast signal, a beam signal, etc. ; can also be a Mobility Reference Signal (MRS), that is, a reference signal for performing beam tracking or position tracking of the terminal device; or a synchronization signal, that is, used in the time domain between the transmission point and the terminal device; The signal that is synchronized in the frequency domain and/or the primary synchronization signal and/or the secondary synchronization signal in the LTE system may also be characterized in other manners, which is not limited in the embodiment of the present invention.

A beam consists of one or more (logical) antennas. The weight of each (logical) antenna is formed by the precoding matrix of the baseband or the phase shift of the RF end, which is called a beam.

The BRS may be characterized by one or more of the antenna port, the time-frequency resource, or the number of the beam, or may be characterized in other manners, which is not limited in the embodiment of the present invention.

Referring to FIG. 2, FIG. 2 is a schematic flowchart diagram of a power configuration method according to an embodiment of the present invention. As shown in FIG. 2, the power configuration method may include the following steps:

201. The second network device sends power configuration parameters, reference signals, and data to the first network device.

In the embodiment of the present invention, the power configuration parameter sent by the second network device to the first network device is one. The power configuration parameter corresponds to the antenna port set, that is, the power configuration parameter is used to determine the power of the antenna port set transmission data corresponding thereto. Each antenna port set may include one antenna port or multiple antenna ports. That is to say, multiple antenna ports can share one power configuration parameter, or one power configuration parameter can be used separately.

Optionally, if all the antenna port sets share one power configuration parameter, the second network device may not send the power configuration parameter to the first network device, and the second network device may obtain, by using a predefined manner, for example, a protocol. Power configuration parameters to determine the power of the received data.

In the embodiment of the present invention, the second network device sends the power configuration parameter, the reference signal, and the data, which may be sent in the same time unit, or may be sent in different time units, which is not limited in the embodiment of the present invention. The time unit may be a time unit of time granularity divided by subframes, frames, time slots, mini-slots, and the like. Power configuration parameters can be updated periodically.

The power configuration parameter may include at least one of a beam identifier, a beam antenna port, a reference signal power, and a power ratio. The reference signal may be at least one of a demodulation reference signal, a BRS, an MRS, and a synchronization signal.

202. The first network device receives the power configuration parameter, the reference signal, and the data, and determines the power of the received data according to the power configuration parameter and the reference signal.

In the embodiment of the present invention, the first network device may calculate the power from the antenna port set data according to the power configuration parameter corresponding to the antenna port set and the reference signal (specifically, the power of the reference signal). The power of the reference signal may be directly notified by the second network device, or may be obtained by the first network device by measurement. For example, the base station sends the BRS in advance, and the terminal device obtains the power condition by receiving the BRS, and the subsequent base station only needs to notify the power ratio information.

The data power in the prior art depends on the power of the CRS. Moreover, the power of all antenna ports currently transmitted for the PDSCH at the same time is the same. In the 5G communication, there is no CRS, and in this way, it is determined that the data power does not satisfy the demand in the case of multi-panel transmission in multi-point cooperation or 5G communication. The embodiment of the invention can determine the power of the received data according to the configured power configuration parameters and other reference signals, thereby receiving data and improving the data transmission performance. For example, other port/beam transmission reference signals (such as demodulation reference signals, BRS, MRS), or other channels, such as synchronization channels, or other reference signals sent by the same port/beam.

It can be seen that, in the method described in FIG. 2, the second network device can send a power configuration parameter to the first network device, and send a reference signal and data corresponding to the antenna port set, and the first network device is accordingly configured according to the power configuration parameter and The power of the reference signal determines the power of the received data, realizing demodulation of the data, and improving the demodulation accuracy.

Please refer to FIG. 3. FIG. 3 is a schematic flowchart diagram of another power configuration method according to an embodiment of the present invention. As shown in FIG. 3, the power configuration method may include the following steps:

301. The second network device sends a first power configuration parameter and a second power configuration parameter to the first network device.

Specifically, the second network device may configure the first power configuration parameter and the second power configuration parameter by using RRC signaling or MAC signaling, or may send the first power configuration parameter to the first network device by using physical layer signaling, and the second Power configuration parameters. The second network device may also send power configuration parameters by other possible signaling.

In the embodiment of the present invention, the first power configuration parameter corresponds to the first antenna port set, and the second power configuration parameter corresponds to the second antenna port set, and the first power configuration parameter and the second power configuration parameter may be the same or different.

The first power configuration parameter and the second power configuration parameter may be carried in a RRC signaling or MAC signaling configuration to the first network device, or may be carried in a physical layer signaling to the first network device, or may be carried in Different RRC signaling or MAC signaling is configured to the first network device, or the bearer is sent to the first network device by using different physical layer signaling, which is not limited in the embodiment of the present invention.

302. The first network device receives the first power configuration parameter and the second power configuration parameter.

303. The second network device sends the reference signal and the data to the first network device.

In this embodiment of the present invention, the reference signal may include a reference signal of the first antenna port set and a reference signal of the second antenna port set. The data can include data from a first set of antenna ports, as well as data from a second set of antenna ports. The first antenna port set and the second antenna port set may belong to different cells or may belong to the same cell. The first set of antenna ports and/or the second set of antenna ports includes at least one antenna port.

Optionally, the first antenna port set and the second antenna port set may belong to different base stations. For example, in the case of a single link, the first set of antenna ports belongs to base station 1 and the second set of antenna ports belongs to base station 2. For example, in the case of a dual link, the first antenna port set belongs to the base station 1, the second antenna port set belongs to the base station 2, and the first antenna port set and the second antenna port set are, for example, together for the terminal device to perform cooperative transmission. In this case, if one antenna port is aggregated into one cell, the first antenna port set can be regarded as a coordinated cell of the second antenna port set, and the second antenna port set can also be regarded as a coordinated cell of the first antenna port set.

Optionally, the first antenna port set and the second antenna port set may belong to the same base station. For example, in the case of a single link, the first set of antenna ports belongs to base station 1, and the second set of antenna ports also belongs to base station 1. For example, in the case of a dual link, the first antenna port set belongs to the base station 1, the second antenna port set also belongs to the base station 1, and the first antenna port set and the second antenna port set are, for example, together for the terminal device to perform cooperative transmission. In this case, if one antenna port is aggregated into one cell, the first antenna port set can be regarded as a coordinated cell of the second antenna port set, and the second antenna port set can also be regarded as a coordinated cell of the first antenna port set. .

Optionally, the reference signal includes at least one of a demodulation reference signal and a first reference signal, where the first reference signal includes at least one of a BRS, an MRS, and a synchronization signal. The type of the reference signal that is specifically included in the reference signal may be preset by a protocol, or may be selected by the second network device according to requirements, which is not limited by the embodiment of the present invention.

It should be noted that the first reference signal may not be limited to the foregoing reference signal, and may also include other signals, which are not limited in the embodiment of the present invention.

Optionally, any power configuration parameter may include at least one of a beam identifier, a beam antenna port, a reference signal power, and a power ratio. Wherein, the power ratio may include at least one of the following:

2) The ratio of the data power of the antenna port set of the demodulation reference signal on the demodulated reference signal symbol to the power of the BRS and/or MRS and/or the synchronization signal.

5) The ratio of the data power of the antenna port set of the demodulation reference signal on the undemodulated reference signal symbol to the power of the BRS and/or MRS and/or the synchronization signal.

It should be noted that the second network device may configure a beam identifier and a power ratio for each beam antenna port in advance, and bind the three information. The second network device only needs to inform any information of the first network device beam identifier, beam antenna port and power ratio to obtain other information. Or one or more of the beam antenna port, beam identification, power ratio may be predefined.

304. The first network device receives the reference signal and the data.

305. The first network device determines, according to the first power configuration parameter and the reference signal of the first antenna port set, a first power of the received data, and determines, according to the second power configuration parameter and the reference signal of the second antenna port set, the received data. Two power.

In the embodiment of the present invention, the first network device receives the first power configuration parameter, the second power configuration parameter, the reference signal of the first antenna port set, and the reference signal of the second antenna port set, from the first antenna port set. After the data and the data from the second antenna port set, the data corresponding to the first antenna port set (ie, the data from the first antenna port set) may be determined according to the first power configuration parameter and the reference signal of the first antenna port set. a first power, and determining a second power of data corresponding to the second set of antenna ports (ie, data from the second set of antenna ports) based on the second power configuration parameter and the reference signal of the second set of antenna ports.

That is, for data from the demodulation reference signal antenna port, on the demodulation reference signal symbol having the antenna port, the power of the data from the antenna port is determined based on the demodulation reference signal on the antenna port. For example, the power ratio is Pa, which may be 0 dB or -3 dB or other values, which may be predefined, or the second network device notifies the first network device. The first network device may learn, according to the protocol or according to the received power ratio, the power of the demodulation reference signal on the antenna port, on the demodulation reference signal symbol having the antenna port, from the antenna port. The power of the data, in turn, the data is decoded and demodulated to achieve data reception.

For the data from the demodulation reference signal antenna port, the power of the data on the demodulation reference signal symbol is not divided into the following three cases:

(1) On the demodulation reference signal symbol without the antenna port, the power of the data from the antenna port is determined according to the power of the demodulation reference signal on the antenna port. For example, the power ratio is Pb, which may be predefined, or the second network device informs the first network device. The first network device may learn, according to the protocol or according to the received power ratio, the power of the demodulation reference signal on the antenna port, on the demodulation reference signal symbol without the antenna port, from the antenna port. The power of the data, in turn, the data is decoded and demodulated to achieve data reception.

(2) On the demodulation reference signal symbol without the antenna port, the power of the data from the antenna port is determined based on the power of the data from the antenna port on the demodulation reference signal symbol having the antenna port. For example The power ratio is Pc, which may be predefined, or the second network device informs the first network device. The first network device may learn, according to the protocol or according to the received power ratio, based on the power of the data on the demodulation reference signal symbol of the antenna port, on the demodulation reference signal symbol without the antenna port, The power of the data from the antenna port, in turn, decodes and demodulates the data to achieve data reception.

(3) The data from each antenna port is determined based on the power of other reference signals. For example, other port/beam transmission reference signals, such as BRS, MRS, synchronization signals, and so on. Or other reference signals sent by the same port/beam. For example, the power ratio is pd, which may be predefined, or the second network device informs the first network device. The first network device may learn, according to the protocol or according to the received power ratio, the power of the reference signal on the other reference signal port/beam, on the demodulation reference signal symbol without the antenna port, from the antenna port. The power of the data, in turn, the data is decoded and demodulated to achieve data reception.

It can be seen that, in the method described in FIG. 3, the second network device can send multiple power configuration parameters to the first network device, and send reference signals and data corresponding to the antenna port set, and the first network device accordingly corresponds according to the antenna port set. The power configuration parameters and the power of the reference signal determine the power of the data from the set of antenna ports, enable demodulation of the data, and improve demodulation accuracy.

Please refer to FIG. 4. FIG. 4 is a schematic flowchart diagram of still another power configuration method according to an embodiment of the present invention. As shown in FIG. 4, the power configuration method may include the following steps:

401. The second network device sends, to the first network device, a first power configuration parameter, a second power configuration parameter, and a third power configuration parameter.

In the embodiment of the present invention, the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter may be configured to the first network device by using the same RRC signaling and/or MAC signaling, and/or through the same physical layer layer. The first network device may be configured to be sent to the first network device by using different RRC signaling and/or MAC signaling, and/or sent to the first network device by using different physical layer signaling. For example, if one antenna port set is regarded as one cell, the second network device is a base station, and the first network device is a terminal device, the base station may carry the power configuration parameter of the serving cell in a RRC signaling and configure it to the terminal device, and The power configuration parameters of other cells are carried in another RRC signaling and configured for the terminal device.

The first power configuration parameter, the second power configuration parameter, and the third power configuration parameter may be sent in the same time unit, or may be sent in different time units, which is not limited in the embodiment of the present invention.

It should be noted that the embodiment of the present invention does not limit only three power configuration parameters, that is, the second network device may send multiple power configuration parameters to the first network device in advance. It can also be understood that the third power configuration parameter does not define one power configuration parameter, and may be a power configuration parameter set composed of multiple power configuration parameters.

Optionally, the second network device is a base station, and the first network device is a terminal device. If the antenna port set corresponding to the multiple power configuration parameters belongs to the same base station, the base station may directly acquire multiple power configuration parameters and send multiple power configuration parameters to the terminal device; and if multiple power configuration parameters correspond to the antenna port set If they belong to different base stations, multiple power configuration parameters can be sent to the terminal device by the same base station. For example, a plurality of power configuration parameters may be sent by the base station where the serving cell of the terminal device is located to the terminal device; or corresponding power configuration parameters may be sent by the different base stations to the terminal device, and a total of multiple power configuration parameters are sent to the terminal device. can. Optionally, if multiple power configuration parameters are sent by the same base station to the terminal device, the base station that sends the power configuration parameter to the terminal device needs to obtain corresponding power configuration parameters from other base stations in advance.

For example, the first antenna port set corresponding to the first power configuration parameter belongs to the base station 1, and the second antenna port set corresponding to the second power configuration parameter belongs to the base station 2. If the base station 1 sends the two sets of power configuration parameters to the terminal device, The base station 1 may send the first power configuration parameter to the terminal device, and the base station 1 may request the base station 2 to obtain the second power configuration parameter, for example, may be obtained through the X2 interface, or the base station 2 may also actively send the second power configuration parameter to the base station 2. Base station 1. Alternatively, the base station 1 may send the first power configuration parameter to the terminal device, and the base station 2 may send the second power configuration parameter to the terminal device.

Optionally, if the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter are respectively carried in multiple RRC signaling and/or MAC signaling, the terminal device is configured, and/or carried in multiple pieces. The physical layer signaling is separately sent to the terminal device, and the time and sequence of sending the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter are not limited in this embodiment of the present invention.

402. The first network device receives the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter.

403. The second network device sends the reference signal and the data to the first network device.

The reference signal includes a reference signal of the first antenna port set and a reference signal of the second antenna port set. The power of the reference signal of the first antenna port set and the power of the reference signal of the second antenna port set may be the same or different, which is not limited by the embodiment of the present invention.

404. The first network device receives the reference signal and the data.

405. The first network device determines, according to the first power configuration parameter and the reference signal of the first antenna port set, a first power of the received data, and determines, according to the second power configuration parameter and the reference signal of the second antenna port set, the received data. Two power.

In the embodiment of the present invention, the second network device may send multiple power configuration parameters to the first network device in advance, where each power configuration parameter corresponds to an antenna port set. When the first network device receives data from several antenna port sets thereof, the power of the data from the antenna port set may be determined according to the corresponding power configuration parameters and the reference signal.

Optionally, each antenna port set corresponds to at least one codeword and/or transport layer, that is, each antenna port set may be used to transmit at least one codeword, or multiple antenna ports may be used to transmit one codeword, different antennas. The set of ports may correspond to different transport layers of the same codeword; one codeword may correspond to data of one transport layer or multiple transport layers; each antenna port set may also be used to transmit data of at least one transport layer; or multiple antenna ports Collections can also be used to transfer data from the same transport layer. For example, in diversity transmission, two antenna ports are used to transmit data of one transport layer, and at this time, two antenna ports can transmit different coding information of data of one transport layer, such as almuta.

Optionally, the second network device may further send, to the first network device, a correspondence between the at least one of the transmission layer number, the antenna port, the codeword, and the Scrambling Identity (SCID) and the power configuration parameter. The information of the relationship, the first network device thereby receiving the information. That is, at least one of the number of transmission layers, the antenna port, the codeword, and the scrambling identifier is bound to the power configuration parameter, for example, table information is established, and the second network device sends the table information through physical layer signaling. For the first network device, the first network device can determine the power of the received data according to the bundled power configuration parameters when receiving data corresponding to a certain transport layer, an antenna port, a codeword, and/or a scrambling identifier.

Optionally, each power configuration parameter may further include a power configuration identifier used to indicate the power configuration parameter, and may also be referred to as index information. The second network device may further send, to the first network device, information indicating a correspondence between at least one of a transmission layer number, an antenna port, a codeword, and a scrambling identifier, and the power configuration identifier, where the first network device receives The information.

According to the embodiment of the present invention, the second network device does not need to carry each power configuration parameter in the signaling, and only needs to set a power configuration identifier for indicating each power configuration parameter, and the power configuration identifier can be carried in the signaling. . In general, the power configuration identifier may be smaller than the data amount of the corresponding power configuration parameter, which can reduce the amount of data carried by the signaling.

Specifically, the second network device may send the number of transmission layers, the antenna port, and the code to the first network device by using a Physical Downlink Control Channel (PDCCH)/Enhanced Physical Downlink Control Channel (EPDCCH). Information of a correspondence between at least one of a word and a scrambling identifier and a power configuration parameter/power configuration identifier.

For example, assume that the first network device is a terminal device and the second network device is a base station. The base station may indicate the number of transmission layers/power configuration parameters (power ratios) of the antenna ports in the DCI information. For example, if there is a power difference information for each transmission layer/port by 1 bit, specifically: Power of antenna port(s)/layer(s)–X bits. Wherein, the bit value of 0 means no power difference, that is, the ratio of the data of the port to the reference signal power is 0 dB; the value of the bit of 1 represents the power difference, that is, the ratio of the data of the port to the reference signal power is -3 dB. , or other values. The opposite is also possible. X may be determined according to the number of ports indicated in the DCI information or the number of transmission layers, or a predefined size, or other signaling, such as RRC signaling. X is a fixed value, for example, determined according to the maximum number of transmission layers of the terminal device, such as 8 layers, which is 8 bits. When the current transmission layer number of the terminal device is less than 8, it can be filled with 0.

For example, the base station may indicate a power configuration parameter (power ratio) corresponding to the codeword in the DCI. For example, 1 bit is configured for the codeword 1 to indicate whether there is power difference information for the data on the antenna port of the codeword 1, and 1 bit is configured for the codeword 2 for indicating data on the antenna port for the codeword 2. Is there a power difference information? Specifically, it may be one codeword and one indication information, or may be multiple codeword joint indication information. Specifically add: Power ratio of codeword–X bits. Wherein, the value of the bit is 0, indicating that there is no power difference, that is, the ratio of the data of the codeword to the reference signal power is 0 dB; the value of the bit of 1 represents the power difference, that is, the ratio of the data of the codeword to the power of the test signal is -3dB, or other values. The opposite is also possible. A codeword corresponds to an indication information Power ratio of codeword, and the indication information may be placed in a codeword information field, and each codeword information field includes an indication information. In this case, X may take a value of 1. Specifically, several indication information may be determined according to the number of code words in the DCI information, or a predefined size, or other signaling, such as RRC information. It may also be a joint indication, and the X under the joint indication may be determined according to the number of code words included in the DCI information, or a predefined size, or other signaling, such as RRC signaling. Or X is a fixed value, for example, determined according to the maximum codeword number of the terminal device, for example, 2 codewords, which is 2 bits. The first bit is used to indicate the power configuration parameter corresponding to the first codeword, and the first bit is used to indicate the power configuration parameter of the second codeword. When the number of current transmission code words of the terminal device is less than 2, it can be filled with 0.

Alternatively, the second network device may send, by using the PDCCH/EPDCCH, information about a correspondence between the transmission point and the power configuration parameter/power configuration identifier to the first network device.

For example, assume that the first network device is a terminal device and the second network device is a base station. The base station can indicate the power configuration parameter (power ratio) of the transmission point in the DCI information. For example, the data of each transmission point is configured with 1-bit information, which is used to indicate whether there is power difference information, and specifically: Power of Transmission Point-X bits. Wherein, the value of bit is 0, indicating that there is no power difference, that is, the ratio of data from the transmission point to the reference signal power is 0 dB; the value of bit is 1 indicates that there is a power difference, that is, data from the transmission point and reference signal power. The ratio is -3dB, or other values. The opposite is also possible. A transmission point corresponds to an indication information Power ratio of codeword, which can be placed in the transmission point information field, and each transmission point information field includes an indication information. In this case, X may take a value of 1. Specifically, several indication information may be determined according to the number of code words in the DCI information, or a predefined size, or other signaling, such as RRC information. It may also be a joint indication, and the X under the joint indication may be determined according to the number of transmission points included in the DCI information, or a predefined size, or other signaling, such as RRC signaling. Or X is a fixed value, for example, according to the maximum number of transmission points supported by the terminal device, for example, 2 transmission points, which are 2 bits. The first bit is used to indicate the power configuration parameter corresponding to the first transmission point, and the second bit is used to indicate the power configuration parameter of the second transmission point. When the number of current transmission points of the terminal device is less than 2, it can be filled with 0.

For example, power configuration parameters, such as power ratios, can be implicitly determined. Specifically, the power configuration parameter (power ratio) may be based on demodulation reference signal antenna port group information (or codeword information or quasi-co-location indication information or transmission point information) corresponding layer information (or antenna port number information) determine. The quasi-co-location indication information is used to indicate the antenna port QCL information of the demodulation reference signal, such as the QCL relationship with the antenna ports of other reference signals, and other reference signals may be CRS, channel state information reference signal (Channel State Information Reference Signal) , CSI-RS), BRS, MRS, etc.

For example, it is determined according to the layer number information corresponding to the demodulation reference signal antenna port group information (or the code word number information or the quasi-co-location indication information), and specifically for one or more demodulation reference signal antenna port group information, such as The number of layers of data transmitted by one or more antenna ports in the demodulation reference signal antenna port group (or the number of antenna ports used to transmit data in the antenna port group) is greater than 2 (or other fixed value, or network) The value of the side configuration), the data sent by the one or more antenna ports has a power ratio to the power of the reference signal sent by the one or more antenna ports, such as -3 dB; if one or more of the antenna port packets The number of layers of data sent by the antenna port (or the number of antenna ports used to transmit data in the antenna port packet) is less than or equal to 2 (or other fixed value, or a value configured on the network side), then the one or more antenna ports The transmitted data has a power ratio to the power of the reference signal transmitted by the one or more antenna ports, such as 0 dB; if the UE is configured with multiple demodulation reference signal antenna port group information, the antenna port group is grouped according to each demodulation reference signal. The number of layers corresponding to the information (or the number of antenna ports used to transmit data in each antenna port packet) Power ratio. The value of the specific power ratio is not limited herein.

Specifically, for the codeword information, if the UE configures one or more codewords, the power is determined according to the layer number information corresponding to the codeword (or the number of antenna port numbers used to send the codeword) for each codeword. Configuration parameters (power ratio). Specifically, for one or more codeword information, if the number of layers corresponding to the codeword (or the number of antenna port numbers used to send the codeword) is greater than 2 (or other fixed value, or a value configured on the network side) The power corresponding to the codeword has a power ratio of the power of the reference signal sent by the one or more antenna ports corresponding to the codeword, for example, -3 dB; if the codeword corresponds to the number of layers of the data (or the codeword is sent) If the number of antenna port numbers used is less than or equal to 2 (or other fixed value, or a value configured on the network side), the data corresponding to the codeword and the reference signal sent by one or more antenna ports corresponding to the codeword The power has a power ratio, such as 0 dB. If the UE configures multiple codeword information, the power ratio is determined according to the layer information corresponding to each codeword (or the number of antenna port numbers used to transmit each codeword). The value of the specific power ratio is not limited herein.

The number of layers corresponding to the codeword may be the number of layers used to send the codeword. For example, if one codeword has 2 layers, the number of layers corresponding to the codeword is 2. The one or more antenna ports corresponding to the codeword may refer to one or more antenna ports used to transmit the codeword.

Specifically, for the quasi co-location indication information, if the UE is configured with one or more quasi co-location indication information, the layer number information corresponding to each quasi co-location indication information (or the data corresponding to the quasi co-location indication information is used) The number of antenna ports) determines the power configuration parameters (power ratio). Specifically, for one or more quasi-co-location indication information, if the number of layers corresponding to the quasi co-location indication information (or the number of antenna ports used by the data corresponding to the quasi-co-location indication information) is greater than 2 (or other fixed value) Or the value configured for the network side, the data corresponding to the quasi co-location indication information has a power ratio to the power of the reference signal sent by one or more antenna ports that send the data, such as -3 dB; if the quasi co-location If the number of layers corresponding to the indication information (or the number of antenna ports used by the data corresponding to the quasi-co-location indication information) is less than or equal to 2 (or other fixed value, or a value configured on the network side), the quasi-co-location indication information corresponds to The data has a power ratio to the power of the reference signal sent by one or more antenna ports that send the data, such as 0 dB; if the UE is configured with multiple quasi-co-location indication information, the layer corresponding to each quasi-co-location indication information The number information (or the number of antenna ports used for the data corresponding to the quasi-co-location indication information) determines the power ratio. The value of the specific power ratio is not limited herein, and may be predefined or signaled.

The layer number information corresponding to the quasi-co-location indication information may be the layer number information corresponding to the data sent by the antenna port in the quasi-co-location indication information, and the number of antenna ports used by the data corresponding to the quasi-co-location indication information Can The number refers to the number of antenna ports used by the antenna port in the quasi-co-location indication information to transmit data.

Specifically, for the transmission point information, if the UE configures one or more transmission point information, the information about the number of layers corresponding to the transmission point for each transmission point information (or the number of antenna ports used by the transmission point to transmit data) ) Determine the power configuration parameters (power ratio). Specifically, for one or more transmission point information, if the number of layers corresponding to the transmission point (or the number of antenna port numbers used by the transmission point to transmit data) is greater than 2 (or other fixed value, or a value configured on the network side) The data corresponding to the transmission point has a power ratio of a reference signal transmitted by one or more antenna ports corresponding to the data transmitted by the transmission point, such as -3 dB; if the number of layers corresponding to the transmission point (or If the number of antenna ports used by the transmission point to transmit data is less than or equal to 2 (or other fixed value, or a value configured on the network side), the data corresponding to the transmission point and one or more antennas corresponding to the data transmitted by the transmission point The power of the reference signal sent by the port has a power ratio, such as 0 dB. If the UE configures multiple transmission point information, the layer information corresponding to each transmission point (or the number of antenna ports used by the transmission point to transmit data) Determine the power ratio separately. The value of the specific power ratio is not limited herein.

The number of layers corresponding to the transmission point may be the number of layers corresponding to the data sent by the transmission point. For example, if one transmission point sends 2 layers of data, the number of layers corresponding to the transmission point is 2. One or more antenna ports corresponding to the data may refer to one or more antenna ports used to transmit the data.

On the other hand, for example, power configuration parameters, such as power ratios, can be implicitly determined. For example, the power configuration parameter (power ratio) may be based on demodulation reference signal antenna port group information (or codeword information or quasi-co-location indication information or transmission point information) corresponding layer information (or antenna port number information) and solution The pattern information of the reference signal antenna port is determined. The quasi-co-location indication information is used to indicate the antenna port QCL information of the demodulation reference signal, such as the QCL relationship with the antenna ports of other reference signals, and other reference signals may be CRS, channel state information reference signal (Channel State Information Reference Signal) At least one of CSI-RS), BRS, MRS, and the like.

Optionally, determining power configuration parameters (power ratio values) according to layer number information corresponding to demodulation reference signal antenna port group information (or codeword number information or quasi-co-location indication information) and pattern information of demodulation reference signal antenna ports . For example, for one or more demodulation reference signal antenna port grouping information, if the number of layers of data transmitted by one or more antenna ports in the demodulation reference signal antenna port group (or the data used in the antenna port group to transmit data) The number of antenna ports is greater than or equal to a threshold (as specified by the protocol, or configured on the network side, for example, 2), and the patterns of the demodulation reference signal antenna ports corresponding to different layers (or different antenna ports) are different. The power transmitted by one or more antenna ports has a power ratio to the power of the reference signal transmitted by the one or more antenna ports, such as -3 dB; if the number of layers of data transmitted by one or more antenna ports in the antenna port packet (or the number of antenna ports used to transmit data in the antenna port packet) is less than a threshold (as specified by the protocol, or configured on the network side, for example, 2) or the number of layers is greater than or equal to a threshold (as specified in the protocol) Or, the pattern phase of the demodulation reference signal antenna port corresponding to the network side configuration, such as 2) but different layers (or different antenna ports) The power transmitted by the one or more antenna ports and the power of the reference signal sent by the one or more antenna ports have a power ratio, such as 0 dB; if the UE is configured with multiple demodulation reference signal antenna port grouping information, The layer number information corresponding to each demodulation reference signal antenna port group information (or the number of antenna ports used for transmitting data in each antenna port group) and the pattern information of the demodulation reference signal antenna port respectively determine a power ratio value. The value of the specific power ratio is not limited here. set. In the above various cases, the threshold values may be the same or different, and the threshold values corresponding to the number of antenna ports and the threshold value corresponding to the number of layers may be the same or different, and are not limited herein.

Optionally, for the codeword information, if the UE configures one or more codewords, the layer number information corresponding to the codeword (or the number of antenna port numbers used to send the codeword) is used for each codeword and The pattern information of the demodulated reference signal antenna port determines the power configuration parameter (power ratio). Optionally, for one or more codeword information, if the number of layers corresponding to the codeword (or the number of antenna port numbers used to send the codeword) is greater than or equal to a threshold (as specified by the protocol, or network) If the side configuration is, for example, 2) and the pattern of the demodulation reference signal antenna port corresponding to different layers (or different antenna ports) is different, the data corresponding to the codeword is sent by one or more antenna ports corresponding to the codeword. The power of the reference signal has a power ratio, such as -3 dB; if the number of layers of the data corresponding to the codeword (or the number of antenna ports used to transmit the codeword) is less than a threshold (as specified by the protocol, or network side) If the pattern of the demodulation reference signal antenna port corresponding to the different layers (or different antenna ports) is the same, the data corresponding to the code word corresponds to one or more of the code words. The power of the reference signal transmitted by the antenna port has a power ratio, such as 0 dB; if the UE is configured with multiple codeword information, the layer information corresponding to each codeword is used (or each codeword is sent) The antenna port number information used) and the pattern information of the demodulation reference signal antenna port respectively determine the power ratio. The value of the specific power ratio is not limited herein. In the above various cases, the threshold values may be the same or different, and the threshold values corresponding to the number of antenna ports used by the codeword and the threshold corresponding to the number of layers may be the same or different. Limited.

Optionally, for the quasi-co-location indication information, if the UE is configured with one or more quasi-co-location indication information, the layer number information corresponding to the quasi-co-location indication information is used for each quasi-co-location indication information (or the quasi-co-location indication information) The number of antenna ports used for the data corresponding to the co-location indication information and the pattern information of the demodulation reference signal antenna port determine the power configuration parameter (power ratio). Optionally, for one or more quasi co-location indication information, if the number of layers corresponding to the quasi co-location indication information (or the number of antenna ports used by the data corresponding to the quasi co-location indication information) is greater than or equal to a threshold Value (scheduled by the protocol, or configured on the network side, for example, 2) and the pattern of the demodulation reference signal antenna port corresponding to different layers (or different antenna ports) is different, then the data and transmission corresponding to the quasi-co-location indication information The power of the reference signal sent by one or more antenna ports of the data has a power ratio, such as -3 dB; if the quasi-co-location indication information corresponds to the number of layers (or the antenna port used for the data corresponding to the quasi-co-location indication information) The number is less than a threshold (as specified by the protocol, or configured on the network side, for example, 2) or the number of layers is greater than or equal to a threshold (as specified by the protocol, or configured on the network side, such as 2) but different If the pattern of the demodulation reference signal antenna port corresponding to the layer (or different antenna ports) is the same, the data corresponding to the quasi-co-location indication information and one or more antenna ports that send the data are sent. The power of the reference signal has a power ratio, such as 0 dB; if the UE is configured with multiple quasi-co-location indication information, the layer number information corresponding to each quasi-co-location indication information (or the data corresponding to the quasi-co-location indication information is used) The number of antenna ports and the pattern information of the demodulation reference signal antenna port respectively determine the power ratio. The value of the specific power ratio is not limited herein, and may be predefined or signaled. In the foregoing various cases, the threshold values may be the same or different, and the threshold value and the number of layers corresponding to the number of antenna ports used for the data corresponding to the quasi-co-location indication information The threshold values should be the same or different, and are not limited herein.

The layer number information corresponding to the quasi-co-location indication information may be the layer number information corresponding to the data sent by the antenna port in the quasi-co-location indication information, and the number of antenna ports used by the data corresponding to the quasi-co-location indication information It may refer to the number of antenna ports used when the antenna port in the quasi co-location indication information transmits data.

Optionally, for the transmission point information, if the UE configures one or more transmission point information, the information about the layer corresponding to the transmission point information for each transmission point information (or the number of antenna ports used by the transmission point to transmit data) The information) and the pattern information of the demodulation reference signal antenna port determine the power configuration parameter (power ratio). Specifically, for one or more transmission point information, if the number of layers corresponding to the transmission point (or the number of antenna port numbers used by the transmission point to transmit data) is greater than or equal to a threshold (as specified by the protocol, or network side) If the configuration of the demodulation reference signal antenna port corresponding to different layers (or different antenna ports) is different, the data corresponding to the transmission point is sent by one or more antenna ports corresponding to the transmission data of the transmission point. The power of the reference signal has a power ratio, such as -3 dB; if the number of layers of data corresponding to the transmission point (or the number of antenna ports used by the transmission point to transmit data) is less than a threshold (as specified by the protocol, or For the network side, for example, 2) or the number of layers is greater than or equal to a threshold (defined by the protocol, or configured on the network side, for example, 2), but the demodulation reference signal antenna corresponding to different layers (or different antenna ports) If the pattern of the port is the same, the data corresponding to the transmission point and the power of the reference signal sent by one or more antenna ports corresponding to the data transmitted by the transmission point have power. Value, such as 0 dB; if the UE configures multiple transmission point information, the layer number information corresponding to each transmission point (or the number of antenna port numbers used by the transmission point to transmit data) and the pattern of the demodulation reference signal antenna port The information determines the power ratio separately. The value of the specific power ratio is not limited herein. In the above various cases, the threshold values may be the same or different, and the threshold value corresponding to the number of antenna ports used for transmitting data at the transmission point and the threshold corresponding to the number of layers may be the same or different. This is not limited.

On the other hand, for example, power configuration parameters, such as power ratios, can be another implicitly determined method. For example, the power configuration parameter (power ratio) may be determined according to the pattern information of the demodulation reference signal antenna port corresponding to the demodulation reference signal antenna port group information (or codeword information or quasi-co-location indication information or transmission point information). The quasi-co-location indication information is used to indicate the antenna port QCL information of the demodulation reference signal, such as the QCL relationship with the antenna ports of other reference signals, and other reference signals may be CRS, channel state information reference signal (Channel State Information Reference Signal) At least one of CSI-RS), BRS, MRS, and the like.

Optionally, the power configuration parameter (power ratio) is determined according to the pattern information of the demodulation reference signal antenna port corresponding to the demodulation reference signal antenna port group information (or the codeword number information or the quasi-co-location indication information). Optionally, for one or more demodulation reference signal antenna port grouping information, if the pattern of the demodulation reference signal antenna port corresponding to one or more antenna ports in the demodulation reference signal antenna port group is different, the one or The data sent by the multiple antenna ports has a power ratio to the power of the reference signal transmitted by the one or more antenna ports, such as -3 dB; if the one or more antenna ports in the antenna port group correspond to the demodulation reference signal antenna port The same pattern, the one or more antenna ports send data with the one or more The power of the reference signal transmitted by the antenna port has a power ratio, such as 0 dB; if the UE is configured with multiple demodulation reference signal antenna port group information, the demodulation reference signal antenna corresponding to each demodulation reference signal antenna port group information The pattern information of the port determines the power ratio, respectively. The value of the specific power ratio is not limited herein.

Optionally, for the codeword information, if the UE configures one or more codewords, the power configuration parameter (power ratio) is determined for each codeword according to the pattern information of the demodulation reference signal antenna port corresponding to the codeword. Optionally, for one or more codeword information, if the pattern of the demodulation reference signal antenna port corresponding to the codeword is different, the data corresponding to the codeword is sent by one or more antenna ports corresponding to the codeword. The power of the reference signal has a power ratio, such as -3 dB; if the pattern of the demodulation reference signal antenna port corresponding to the codeword is the same, the data corresponding to the codeword is transmitted with one or more antenna ports corresponding to the codeword. The power of the signal has a power ratio, such as 0 dB. If the UE is configured with multiple codeword information, the power ratio is determined according to the pattern information of the demodulation reference signal antenna port corresponding to each codeword. The value of the specific power ratio is not limited herein.

The one or more antenna ports corresponding to the codeword may refer to one or more antenna ports used for transmitting the codeword.

Optionally, for the quasi co-location indication information, if the UE is configured with one or more quasi co-location indication information, determining power configuration parameters for the pattern information of the demodulation reference signal antenna port corresponding to each quasi co-location indication information ( Power ratio). Optionally, for one or more quasi co-location indication information, if the pattern of the demodulation reference signal antenna port corresponding to the quasi co-location indication information is different, the data corresponding to the quasi co-location indication information and one of the data sent Or the power of the reference signal sent by the multiple antenna ports has a power ratio, such as -3 dB; if the pattern of the demodulation reference signal antenna port corresponding to the quasi-co-location indication information is the same, the data and the corresponding data of the quasi-co-location indication information The power of the reference signal sent by one or more antenna ports of the data has a power ratio, such as 0 dB; if the UE is configured with multiple quasi-co-location indication information, the demodulation reference signal antenna corresponding to each quasi-co-located indication information The pattern information of the port determines the power ratio, respectively. The value of the specific power ratio is not limited herein, and may be predefined or signaled.

The demodulation reference signal antenna port corresponding to the quasi-co-location indication information may be a demodulation reference signal antenna port corresponding to the data sent by the antenna port in the quasi co-location indication information, and the data corresponding to the quasi-co-location indication information The number of antenna ports used may refer to the number of antenna ports used when the antenna port in the quasi co-location indication information transmits data.

Optionally, for the transmission point information, if the UE configures one or more transmission point information, determining a power configuration parameter (power ratio) according to the pattern information of the demodulation reference signal antenna port corresponding to the transmission point for each transmission point information. ). Optionally, for one or more transmission point information, if the pattern of the demodulation reference signal antenna port corresponding to the transmission point is different, the data corresponding to the transmission point is one or more antenna ports corresponding to the transmission data of the transmission point. The power of the transmitted reference signal has a power ratio, such as -3 dB; if the pattern of the demodulation reference signal antenna port corresponding to the transmission point is the same, the data corresponding to the transmission point and one or more antennas corresponding to the transmission data of the transmission point The power of the reference signal sent by the port has a power ratio, such as 0 dB. If the UE configures multiple transmission point information, the power ratio is determined according to the pattern information of the demodulation reference signal antenna port corresponding to each transmission point. The value of the specific power ratio is not limited herein.

The demodulation reference signal antenna port corresponding to the transmission point may refer to a demodulation reference signal antenna port corresponding to the data sent by the transmission point. One or more antenna ports corresponding to the data may refer to one or more antenna ports used to transmit the data.

In combination with the various embodiments described above, for example, taking the demodulation reference signal in LTE as an example, port 7, port 8, port 11, port 13 adopt the same pattern, that is, occupy the same time-frequency resource. Location, while port 9, port 10, port 12, port 14 use the same pattern, that is, occupy the same time-frequency resource location. The determination of the power configuration parameters (power ratio) is exemplified by transmitting two codewords at two transmission points. The specific power configuration parameters are for illustrative purposes only and are not specifically limited.

For example, the correspondence between the port number of the antenna port and the transmission point or the codeword or the QCL may include the following three types.

Method 1: The port number 7, 8, 11, 13 of the antenna port corresponds to a transmission point or code word or QCL; the port number 9, 10, 12, 14 of the antenna port corresponds to another transmission point or code word or QCL. In this mode, the pattern of the reference signal antenna port corresponding to each transmission point or codeword or one or more antenna ports of the QCL is the same, because the transmission point or codeword or QCL indication information (referred to as QCL for short) The corresponding data has a power ratio, such as 0 dB, of the power of the reference signal transmitted by one or more antenna ports corresponding to the transmission data of the transmission point. Specifically, the power configuration parameters are determined as follows:

For a total of 2 layers of data, the power configuration parameters (power ratio) can be as follows:

For a total of 3 layers of data, the power configuration parameters (power ratio) can be as follows:

or

For a total of 4 layers of data, the power configuration parameters (power ratio) can be as follows:

or

or

For a total of 5 layers of data, the power configuration parameters (power ratio) can be as follows:

or

or

or

For a total of 6 layers of data, the power configuration parameters (power ratio) can be as follows:

or

or

For a total of 7 layers of data, the power configuration parameters (power ratio) can be as follows:

or

For a total of 8 layers of data, the power configuration parameters (power ratio) can be as follows:

Mode 2: The port number 7, 8, 9, 10 of the antenna port corresponds to one transmission point or code word or QCL; the port number 11, 12, 13, 14 of the antenna port corresponds to another transmission point or code word or QCL. In this mode, because the pattern of the reference signal antenna port corresponding to each transmission point or codeword or one or more antenna ports of the QCL may be the same, it may be different because the transmission point or codeword or The data corresponding to the QCL indication information and the reference signal transmitted by one or more antenna ports corresponding to the transmission data of the transmission point may have different power ratios, such as 0 dB or -3 dB. Specifically, the power configuration parameters are determined as follows:

or

or

or

or

or

or

or

or

or

Manner 3: The correspondence between the port number of the antenna port and the transmission point or the codeword or the QCL is dynamic, for example, it can be determined according to the mapping of the codeword to the layer or the antenna port in the existing LTE. In this mode, because the pattern of the reference signal antenna port corresponding to each transmission point or codeword or one or more antenna ports of the QCL may be the same, it may be different because the transmission point or codeword or The data corresponding to the QCL indication information and the reference signal transmitted by one or more antenna ports corresponding to the transmission data of the transmission point may have different power ratios, such as 0 dB or -3 dB. Specifically, the power configuration parameters are determined as follows:

or

or

or

Optionally, in the case of transmitting data of different layers of one codeword for two transmission points, the above scheme may also be used to determine the power ratio of data on the different layers/ports and the demodulation reference signal, specifically, no longer Narration.

Optionally, the terminal device may determine, according to the QCL configuration information, whether the data sent by the antenna port corresponding to the QCL is from one transmission point or multiple transmission points, and then determining a corresponding power configuration parameter (power ratio). For example, a transmission point may adopt a power configuration parameter in the prior art, and a plurality of transmission points may adopt a power configuration parameter corresponding to the solution in the invention, and details are not described herein.

Further, after receiving the signaling, the terminal device can know the power ratio between the data on the current layer/port and the demodulation reference signal, and further determine the received data power according to the power of the demodulation reference signal, thereby implementing reception. Demodulation of data. Wherein, the data power may be the same or different on the demodulated reference signal symbol and the undemodulated reference signal symbol. The protocol can specify that the data power is the same, in which case only one set of power ratio information is needed. When the data powers are different, the power ratio information can be separately configured for the data on the demodulated reference signal symbol and the data on the undemodulated reference signal symbol. Or, the foregoing power ratio information may be in a predefined manner, which is not limited herein.

Optionally, it is assumed that the first network device is a terminal device, and the second network device is a base station. The base station may increase the power of the antenna port identifier or the reference signal corresponding to the beam identifier in the PDSCH configuration information field, and/or increase the power ratio information Pd. For example, when configuring the power configuration parameter, only the data of the current transmission layer/antenna port t may have a power ratio relationship with the reference signal power of the beam/antenna port, and then determine the specificity according to the reference signal power of the beam/antenna port. Data power of the transport layer/antenna port.

Wherein, if the beam identification/antenna port identification defaults, the power of the reference signal can be considered to have the same value for different beam/antenna ports. The power and power configuration parameters (antenna port/beam identification and power ratio) of the reference signal can be placed in common information. The values in the signaling are only examples, and other values may be used. The embodiments of the present invention are not limited herein. as follows:

The information field PDSCH-ConfigCommon is a public information field of the PDSCH configuration, the information field ReferenceSignalPower refers to the reference signal power information field, the information field beam ID/port refers to the beam identifier or the antenna port corresponding to the beam, and the information domain Pd refers to the power ratio. Information domain.

Alternatively, the reference signal power information field may include a reference signal power information list ReferenceSignalPower-List, and the reference signal power information list may include one or more reference signal power information. The information field beam ID/port may include a beam ID/port list beam ID/port-List, and the beam ID/port list may include one or more beam identifiers or antenna port information corresponding to the beam. The power ratio information field may also include a power ratio list Pd-List, the power ratio list including one or more power ratios. The beam ID/port-List can be omitted. For example, the power ratio list is arranged in a predefined order of beam IDs, such as from large to small or from small to large. Therefore, there is no need to notify beam ID/port-List. The values in the signaling are only examples, and other values may be used. The embodiments of the present invention are not limited herein. as follows:

The information field PDSCH-ConfigCommon is a public information field of the PDSCH configuration, and the information field ReferenceSignalPower-List refers to the reference signal power information list, and the information field beam ID/port-list refers to the beam identification list or the antenna port list corresponding to the beam. The domain Pd-List refers to a list of power ratio information fields.

The power of the reference signal can be placed in the common information, and the power configuration parameters can be placed in the dedicated information. The values in the signaling are only examples, and other values may be used. The embodiments of the present invention are not limited herein. as follows:

The information domain PDSCH-ConfigCommon is a public information domain of the PDSCH configuration, and the information domain PDSCH-ConfigDedicated is a dedicated information domain of the PDSCH configuration, which may be a UE level. The information domain ReferenceSignalPower refers to a reference signal power information domain, and the information domain beam ID/ Port refers to the beam identifier or the antenna port corresponding to the beam, and the information field Pd refers to the power ratio information field.

The information field beam ID/port may include a beam ID/port list, and the beam ID/port list may include one or more beam identifiers or antenna port information corresponding to the beam. The power ratio information field may also include a power ratio list Pd-List, the power ratio list including one or more power ratios. The beam ID/port-List can be omitted. For example, the power ratio list is arranged in a predefined order of beam IDs, such as from large to small or from small to large. Therefore, there is no need to notify beam ID/port-List. The values in the signaling are only examples, and other values may be used. The embodiments of the present invention are not limited herein. as follows:

The information field PDSCH-ConfigDedicated is a dedicated information field of the PDSCH configuration, and may be at the UE level. The information field beam ID/port-list refers to a beam identification list or a list of antenna ports corresponding to the beam, and the information field Pd-List refers to power. A list of ratio information fields.

The base station sends multiple power configuration parameters, and each power configuration parameter carries a power configuration identifier, such as a power control configuration identifier (Power-control-configID). The information carrying the power configuration identifier may be public or private. The values in the signaling are only examples, and other values may be used. The embodiment of the present invention is not limited herein. as follows:

Alternatively, the reference signal power information field may include a reference signal power information list ReferenceSignalPower-List, and the reference signal power information list may include one or more reference signal power information. The information field beam ID/port may include a beam ID/port list beam ID/port-List, and the beam ID/port list may include one or more beam identifiers or antenna port information corresponding to the beam. The power ratio information field may also include a power ratio list Pd-List, the power ratio list including one or more power ratios. The beam ID/port-List can be omitted, for example, the power ratio list is scheduled according to the beam ID. The order of meanings is, for example, from large to small or from small to large. Therefore, there is no need to notify beam ID/port-List. The values in the signaling are only examples, and other values may be used. The embodiments of the present invention are not limited herein. as follows:

The information field ReferenceSignalPower-List refers to the reference signal power information list, the information field beam ID/port-List refers to the beam identification list or the antenna port list corresponding to the beam, and the information field Pd-List refers to the power ratio information field list.

When there are multiple configuration parameters, the base station may notify the terminal device to transmit the number of layers or the power configuration parameter corresponding to the port through the PDCCH. The specific number of bits is not limited herein. The following are only examples, as follows:

Power control configure Indicator----2bits or 3bits

Optionally, the second network device may first define a plurality of power ratio values, and then indicate each power ratio value by using a power configuration identifier. See Table 1 for a list of information that may be used to indicate the relationship between each power ratio and the power configuration identifier. Each value (Value) in Table 1 corresponds to a sub-message (Message), or the Message can be understood as a state, that is, a Value corresponds to a state, and n _{PCID is} used to identify a power configuration identifier, and each power configuration identifier The corresponding Message is the power ratio.

Table 1

It can be seen from Table 1 that each power ratio is configured with a power configuration identifier, and the second network device can send the information of Table 1 to the first network device, and then only need to inform the first network device of the power configuration identifier, A network device can learn the corresponding power ratio, thereby determining the power of the received data based on the power of the reference signal given by the second network device and the power ratio to implement demodulation of the received data.

Further, the second network device reconfigures information of a correspondence between at least one of a transmission layer number, an antenna port, a codeword, and a scrambling identifier and a power configuration identifier.

The following is an example of the information about the correspondence between the number of transmission layers and the antenna port and the power configuration identifier. Where port is the antenna port.

For example, when the number of transmission layers of data is 1, a kind of information that may be used to indicate the correspondence between the number of transmission layers and the antenna port and the power configuration identifier can be referred to Table 2. Each value in Table 2 corresponds to a message, that is, a value corresponds to a state, which is equivalent to combining the number of transmission layers, the antenna port, the codeword, and the number of transmission layers in the scrambling identifier and the antenna port and the power configuration identifier. Encoding, wherein the encoding rules in the embodiments of the present invention can refer to the prior art. For example, the value of Value can occupy 2 bits or 3 bits, or it may occupy more bits. Table 2 takes 2bit as an example. Value0 corresponds to 00, Value1 corresponds to 01, Value2 corresponds to 10, and Value3 corresponds to 11. The n _PCIDs in the table all indicate power configuration identifiers for marking power configuration parameters.

Table 2

ValueValue	MessageMessage
00	1layer，port 7，n_PCID＝01layer,port 7,n _PCID =0
11	1layer，port 7，n_PCID＝11layer,port 7,n _PCID =1
22	1layer，port 7，n_PCID＝21layer,port 7,n _PCID =2
33	1layer，port 7，n_PCID＝31layer,port 7,n _PCID =3

It can be seen from Table 2 that when the number of transmission layers is 1, four states can be corresponding, and the power configuration identifiers corresponding to the four states are different, indicating that the four states correspond to four power configuration parameters. In this way, the terminal device receives multiple power configuration parameters (such as the first power configuration parameter, the second power configuration, the third power configuration parameter, and the like), and also knows the power configuration identifier of each power configuration parameter. Determining which antenna port set corresponds to which power configuration parameter according to information such as an antenna port and/or a transmission layer number of the antenna port set, and a power configuration identifier included in each state, so that each antenna port set can be separately determined. The power of the data.

For another example, when the number of transmission layers is 1, another possible information for indicating the correspondence between the number of transmission layers and the antenna port and the power configuration identifier can be referred to Table 3. Each value in Table 3 corresponds to a state. Table 3 takes the value of Value as 3, and Value0 corresponds to 000, Value1 corresponds to 001, Value2 corresponds to 010, and so on.

table 3

ValueValue	MessageMessage
00	1layer，port 7，n_PCID＝01layer,port 7,n _PCID =0
11	1layer，port 7，n_PCID＝11layer,port 7,n _PCID =1
22	1layer，port 7，n_PCID＝21layer,port 7,n _PCID =2
33	1layer，port 7，n_PCID＝31layer,port 7,n _PCID =3
44	1layer，port 8，n_PCID＝01layer,port 8,n _PCID =0
55	1layer，port 8，n_PCID＝11layer,port 8,n _PCID =1
66	1layer，port 8，n_PCID＝21layer,port 8,n _PCID =2
77	1layer，port 8，n_PCID＝31layer,port 8,n _PCID =3

It can be seen from Table 3 that when the number of transmission layers is 1, it can correspond to 8 states, each of which has a power configuration identifier, and multiple states can correspond to one configuration identifier, that is, multiple states correspond to the same power configuration. parameter.

For another example, when the number of transmission layers is 2, another possible information for indicating the correspondence between the number of transmission layers and the antenna port and the power configuration identifier can be referred to Table 4. Each value in Table 4 corresponds to a state, and each state may include at least two sub-states, and each sub-state may have a corresponding n _PCID . Table 4 takes the value of Value as 2.

Table 4

It can be seen from Table 4 that when the number of transmission layers is 2, 8 states can be corresponding, and each state corresponds to a power configuration identifier.

For another example, when the number of transmission layers is 3, another possible information for indicating the correspondence between the number of transmission layers and the antenna port and the power configuration identifier can be referred to Table 5. Each value in Table 5 corresponds to a state, and each state may include at least two sub-states, and each sub-state may have a corresponding n _PCID . Table 5 takes the value of Value as an example.

table 5

As can be seen from Table 5, when the number of transmission layers is 3, it can correspond to 16 sub-states, which are 16 sub-states. Each has a corresponding power configuration identifier.

For another example, when the number of transmission layers is 4, another possible information for indicating the correspondence between the number of transmission layers and the antenna port and the power configuration identifier can be referred to Table 6. Each of the values in Table 6 corresponds to a state, and each state may include at least two sub-states, each of which may have a corresponding n _PCID . Table 6 takes the value of Value as an example.

Table 6

It can be seen from Table 6 that when the number of transmission layers is 4, 16 sub-states can be corresponding, and each of the 16 sub-states has a corresponding power configuration identifier.

For another example, when the number of transmission layers is 5, another possible information for indicating the correspondence between the number of transmission layers and the antenna port and the power configuration identifier can be referred to Table 7. Each of the values in Table 7 corresponds to a state, and each state may include at least two sub-states, each of which may have a corresponding n _PCID . Table 7 takes the value of Value as an example.

Table 7

It can be seen from Table 7 that when the number of transmission layers is 5, 16 sub-states can be corresponding, and each of the 16 sub-states has a corresponding power configuration identifier.

For another example, when the number of transmission layers is 6, another possible information for indicating the correspondence between the number of transmission layers and the antenna port and the power configuration identifier can be referred to Table 8. Each of the values in Table 8 corresponds to a state, and each state may include at least two sub-states, each of which may have a corresponding n _PCID . Table 8 takes the value of Value as an example.

Table 8

It can be seen from Table 8 that when the number of transmission layers is 6, it can correspond to 16 sub-states, each of which has a corresponding power configuration identifier.

For another example, when the number of transmission layers is 7, another possible information for indicating the correspondence between the number of transmission layers and the antenna port and the power configuration identifier can be referred to Table 9. Each of the values in Table 9 corresponds to a state, and each state may include at least two sub-states, each of which may have a corresponding n _PCID . Table 9 takes the value of Value as an example.

Table 9

It can be seen from Table 9 that when the number of transmission layers is 7, it can correspond to 16 sub-states, each of which has a corresponding power configuration identifier.

For another example, when the number of transmission layers is 8, another possible information for indicating the correspondence between the number of transmission layers and the antenna port and the power configuration identifier can be referred to Table 10. Each value in Table 10 corresponds to a state, and each state may include at least two sub-states, each of which may have a corresponding n _PCID . Table 10 takes the value of Value as an example.

Table 10

As can be seen from Table 10, when the number of transmission layers is 8, it can correspond to 16 sub-states, each of which has a corresponding power configuration identifier.

Among them, Tables 2 to 10 can respectively indicate the case of different transmission layers. Optionally, the number of transmission layers and the power configuration identifier corresponding to the antenna port may also be jointly indicated. For example, a possible information for indicating the correspondence between the number of transmission layers and the antenna port and the power configuration identifier can be referred to Table 11.

Table 11

Among them, Tables 2 to 11 are used to indicate information on the correspondence between the number of transmission layers and the antenna port and the power configuration identifier.

The following is an example of information on the correspondence between the codeword and the power configuration identifier.

For example, when two codeword transmission power configuration parameters are used, one information that may be used to indicate the correspondence between the codeword and the power configuration identifier may be referred to Table 12. Each value in Table 12 corresponds to a state, and each state may include at least two sub-states, and each sub-state may have a corresponding n _PCID . Table 12 takes the value of Value as 2 bits as an example.

Table 12

As can be seen from Table 12, when two codewords are used to transmit power configuration parameters, there are eight states, each of which has a power configuration identifier.

For another example, when two codeword transmission power configuration parameters are used, another information that may be used to indicate the correspondence between the codeword and the power configuration identifier may be referred to Table 13. Each value in Table 13 corresponds to a state, and each state may include at least two sub-states, each of which may have a corresponding n _PCID . Table 13 takes the value of Value as an example.

Table 13

It can be seen from Table 13 that when there are 2 code words, corresponding to 16 states, each state corresponds to a power configuration identifier.

Among them, Table 12 and Table 13 are both used to indicate the correspondence between the codeword and the power configuration identifier.

Optionally, it is assumed that the first network device is a terminal device, and the second network device is a base station. The base station may add a power configuration identifier in the information domain of the antenna port, the scrambling identifier, and the transmission layer in the DCI information, and indicate which power configuration parameter is specifically adopted. as follows:

-Antenna port(s), scrambling identity, number of layers and power control indicator–3/4/5/...bits as specified in Table13where n _SCID is the scrambling identity for antenna ports 7 and 8.

The following describes the information about the correspondence between the number of transmission layers, the antenna port, the scrambling identifier, and the codeword and the power configuration identifier.

For example, an information that may be used to indicate the correspondence between the number of transmission layers, the antenna port, and the scrambling identifier and the power configuration identifier may be referred to Table 14. Wherein, in Table 14, each Value corresponds to one state, and each state may further include at least two sub-states, each of which may have a corresponding n _PCID . When the information is transmitted using one codeword, reference may be made to the correspondence shown in the left part of Table 14. When the information is transmitted using two codewords, reference may be made to the correspondence shown in the right part of Table 14. Taking the second network device as the base station and the first network device as the terminal device, when the multiplexing of the terminal device is required, the scrambling identifier n _SCID can be distinguished. Table 14 takes the value of Value as an example.

Table 14

As can be seen from Table 14, when a transport layer transmits data, the terminal devices can be multiplexed, and different scrambling identifiers are used to distinguish different power configuration identifiers. When two transport layers transmit data and two codewords correspond to two transport layers, the scrambling identifier can also be used to distinguish the power configuration identifiers corresponding to different transport layers/antenna ports.

For another example, another information that may be used to indicate the correspondence between the number of transmission layers, the antenna port, and the scrambling identifier and the power configuration identifier may be referred to Table 15. Wherein, in Table 15, each Value corresponds to one state, and each state may further include at least two sub-states, each of which may have a corresponding n _PCID . Table 15 takes the value of Value as 4 bits as an example.

Table 15

As can be seen from Table 15, when a transport layer transmits data, the terminal devices can be multiplexed, and different scrambling identifiers are used to distinguish different power configuration identifiers. When two transport layers transmit data and two codewords correspond to two transport layers, the scrambling identifier can also be used to distinguish the power configuration identifiers corresponding to different transport layers/ports.

It should be noted that the foregoing Tables 1 to 15 are only examples for more clearly describing the technical solutions of the embodiments of the present invention, and are not limited to the present invention. Other possible indicators are used to indicate the number of transmission layers and antenna ports. The information of the correspondence between the at least one of the codeword and the scrambling identifier and the power configuration identifier is also within the protection scope of the embodiment of the present invention, which is not limited in the embodiment of the present invention. Further, the specific ratios in Tables 1 to 15 above The values in the special number and the table are only examples, and other values may be used, which are not limited herein.

It can be understood that the correspondence between the design transport layer/antenna port/codeword/scrambling identifier and the power configuration parameter/power configuration identifier is designed, and when the first network device receives the data stream transmitted by the distributed antenna, it can be different for different The data stream (transport layer) determines the respective data power, thereby improving the data transmission performance.

Optionally, the second network device may further send, to the first network device, information indicating a correspondence between at least one of a transmission layer number, an antenna port, and a codeword, and a beam identifier; and transmitting beam identification and power configuration. The information of the correspondence between the parameters, the first network device thereby receiving the two information.

Optionally, each power configuration parameter may further include a power configuration identifier used to indicate the power configuration parameter. The second network device may further send, to the first network device, information indicating a correspondence between at least one of a transmission layer number, an antenna port, and a codeword, and a beam identifier; and a correspondence between the transmission beam identifier and the power configuration identifier The information of the relationship, the first network device thereby receiving the two information.

That is, the second network device binds the number of transmission layers, the antenna port, and/or the codeword to the beam identifier, and binds the beam identifier to the power configuration parameter/power configuration identifier. When the first network device receives the certain When the data corresponding to the transmission layer, the antenna port, and/or the codeword is used, the corresponding power configuration parameter/power configuration identifier may be found according to the bundled beam identifier, so that the power of the received data is determined according to the power configuration parameter. The information sent by the second network device to indicate the correspondence between the at least one of the number of the transmission layers, the antenna port, and the codeword and the beam identifier is used to indicate the beam identifier and the power configuration parameter/power configuration identifier. The information of the corresponding relationship may be sent in the same time unit, or may be sent in different time units, may be sent in the same signaling, or may be sent in different signaling, for example, through RRC signaling or MAC signaling configuration. Or, the physical layer signaling is used for sending, and the embodiment of the present invention is not limited.

Specifically, the second network device may send Quasi Co Location (QCL) information to the first network device, where the first network device determines, by using the QCL information, the current transport layer/antenna port/codeword and the beam identifier (beam ID) Or port) having a QCL relationship, thereby determining the transmission layer/antenna port/codeword of the data according to the power information of the reference signal of the beam identifier configured in the RRC signaling and the power configuration parameter (or the power configuration parameter corresponding to the power configuration identifier) Power, thereby enabling demodulation of received data. The power information of the reference signal and the power configuration parameter (or the power configuration parameter corresponding to the power configuration identifier) may be configured or predefined.

Conversely, the first network device can also determine the QCL information of the current data port according to the power configuration parameters.

It can be understood that when configuring the power configuration parameter, the power configuration parameter can be configured with a corresponding power configuration identifier to uniquely represent the power configuration parameter. Thus, the second network device can bind the power configuration identification to at least one of the number of transmission layers, the antenna port, the codeword, and the scrambling identity, and/or to the beam identification. When the first network device receives at least one of a certain transport layer, an antenna port, a codeword, and a scrambling identifier, the first network device may determine a corresponding power configuration parameter, or determine a beam identifier bound thereto, thereby The power configuration parameters are determined based on the beam identification.

That is to say, the second network device can use different powers for data transmission for different beams, so different beam identifiers can correspond to different power configuration parameters, and improve data transmission performance under different beams. In addition, the beam identification corresponds to a set of power configuration parameters, and when the second network device is configured, the signaling overhead can be reduced, and the relevant beam information can be indicated in specific use.

Further, different beam identifiers may correspond to codewords, transport layers, and antenna ports, that is, different codewords. Alternatively, the transport layer or the antenna port may be sent through different beams to improve the performance of the corresponding codeword, transport layer, and antenna port for transmitting data.

Determining, by the foregoing manner, the power information of the reference signal of the reference beam identification of the data, that is, determining, according to the QCL information, the respective data powers can be determined for different data streams (transport layers), and thus the data demodulation result is more accurate, thereby Improve data transmission performance.

Based on the same inventive concept, an embodiment of the present invention provides a network device. Referring to FIG. 5, FIG. 5 is a schematic structural diagram of a network device according to an embodiment of the present invention. As shown in FIG. 5, the network device 500 can include a receiving module 501 and a processing module 502, where:

The receiving module 501 is configured to receive the first power configuration parameter and the second power configuration parameter sent by the second network device, and receive the reference signal and data sent by the second network device, where the reference signal includes the first antenna port set. Reference signal and reference signal of the second antenna port set.

The processing module 502 is configured to determine, according to the first power configuration parameter and the reference signal of the first antenna port set, the first power of the received data (the data corresponding to the first antenna port set, that is, the data from the first antenna port set), and And determining, according to the second power configuration parameter and the reference signal of the second antenna port set, the second power of the received data (data corresponding to the second antenna port set, that is, data from the second antenna port set).

Optionally, the receiving module 501 is further configured to receive a third power configuration parameter sent by the second network device.

The reference signal includes at least one of a demodulation reference signal and a first reference signal; the first reference signal includes at least one of a beam reference signal, a motion reference signal, and a synchronization signal.

The power ratio includes at least one of the following:

The ratio of the data power of the set of antenna ports of the demodulation reference signal on the demodulated reference signal symbol to the power of the demodulation reference signal on the set of antenna ports.

The ratio of the data power of the set of antenna ports of the demodulation reference signal on the demodulated reference signal symbol to the power of the first reference signal.

The ratio of the data power of the set of antenna ports of the demodulation reference signal on the undemodulated reference signal symbol to the power of the demodulation reference signal on the set of antenna ports.

The ratio of the data power of the set of antenna ports of the demodulation reference signal on the undemodulated reference signal symbol to the data power of the set of antenna ports of the demodulation reference signal on the demodulated reference signal symbol.

The ratio of the data power of the set of antenna ports of the demodulation reference signal on the undemodulated reference signal symbol to the power of the first reference signal.

Specifically, the specific manner in which the receiving module 501 receives the first power configuration parameter and the second power configuration parameter sent by the second network device may be:

The first power configuration parameter and the second power configuration parameter are obtained from the second network device by RRC signaling or physical layer signaling or MAC signaling.

Optionally, any one of the first antenna port set and the second antenna port set includes at least one antenna port; any one of the first antenna port set and the second antenna port set is at least One codeword corresponding; any one of the first antenna port set and the second antenna port set corresponds to at least one transport layer.

Optionally, the receiving module 501 is further configured to receive, by the second network device, information indicating a correspondence between at least one of a transmission layer number, an antenna port, a codeword, and a scrambling identifier, and a power configuration parameter; Or receiving, by the second network device, information indicating a correspondence between at least one of a transmission layer, an antenna port, and a codeword, and a beam identifier, and indicating a correspondence between the beam identifier and the power configuration parameter. Information. or,

Any one of the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter further includes a power configuration identifier for indicating the power configuration parameter, and the receiving module 501 is further configured to receive the second network device. Information sent to indicate a correspondence between at least one of a transmission layer number, an antenna port, a codeword, and a scrambling identifier and a power configuration identifier. Or receiving, by the second network device, information indicating a correspondence between at least one of a transmission layer, an antenna port, and a codeword, and a beam identifier, and indicating a correspondence between the beam identifier and the power configuration identifier Information.

Further, the second network device may use different powers for data transmission of different beams, so different beam identifiers may correspond to different power configuration parameters, and improve data transmission performance under different beams. The beam identification identifies a set of power configuration parameters. When the second network device is configured, the signaling overhead can be reduced, and the relevant beam information can be indicated in specific use. In addition, different beam identifications can be associated with codewords, transport layers, The antenna ports correspond to different codewords or transmission layers or antenna ports that can be transmitted through different beams to improve the performance of the corresponding codeword, transmission layer, and antenna port transmission data.

Based on the same inventive concept, an embodiment of the present invention provides another network device. Referring to FIG. 6, FIG. 6 is a schematic structural diagram of another network device according to an embodiment of the present invention. As shown in FIG. 6, the network device 600 can include a transceiver 601, a processor 602, and a memory 603, where:

The processor 602 may include, for example, a central processing unit (CPU) or an application specific integrated circuit (ASIC), and may include one or more integrated circuits for controlling program execution, and may include using a field programmable gate. A hardware circuit developed by a Field Programmable Gate Array (FPGA) may include a baseband chip.

The number of memories 603 may be one or more. The memory 603 may include a Read Only Memory (ROM), a Random Access Memory (RAM), and a disk storage, and the like. The memory 603 can be used to store instructions required by the processor 602 to perform tasks, and can also be used to store data.

The transceiver 601 can belong to a radio frequency system for performing network communication with an external device, for example, can communicate with an external device through a network such as an Ethernet, a radio access network, or a wireless local area network.

The transceiver 601, the memory 603, and the processor 602 are connected to each other.

By programming the processor 602, the code corresponding to the method shown above is solidified into the chip, thereby enabling the chip to perform the method shown in the previous embodiment while it is running. How to design and program the processor 602 is a technique well known to those skilled in the art, and details are not described herein.

The network device 600 can be used to perform the method described above with reference to Figures 2 - 4, for example, can be a first network device. Therefore, for the functions and the like implemented by the units in the network device 600, reference may be made to the description of the previous method part, and details are not described herein.

It can be understood that, in practical applications, the physical device corresponding to the receiving module 501 in the network device 500 described in FIG. 5 may be the transceiver 601 in FIG. 6, and the physical device corresponding to the processing module 502 may be the processing in FIG. 602.

It can be seen that, in the network device described in FIG. 5 and FIG. 6, the network device can receive multiple power configuration parameters sent by the second network device, so that the power configuration parameter corresponding to the antenna port set corresponding to the received data and the power of the reference signal are obtained. Determine the power of the received data, realize the demodulation of the received data, improve the demodulation accuracy, and improve the data transmission performance.

Based on the same inventive concept, an embodiment of the present invention provides another network device. Please refer to FIG. 7. FIG. 7 is a schematic structural diagram of another network device according to an embodiment of the present invention. As shown in FIG. 7, the network device 700 can include a sending module 701, where:

The sending module 701 is configured to send, to the first network device, a first power configuration parameter and a second power configuration parameter, and send a reference signal and data to the first network device, where the reference signal includes a reference signal of the first antenna port set and a A reference signal for a set of two antenna ports.

The first power configuration parameter and the reference signal of the first antenna port set are used to determine a first power of the received data (data corresponding to the first antenna port set, that is, data from the first antenna port); the second power configuration parameter And the reference signal of the second antenna port set is used to determine a second power of the received data (data corresponding to the second antenna port set, ie, data from the second antenna port).

Optionally, the sending module 701 is further configured to send a third power configuration parameter to the first network device.

The power ratio includes at least one of the following:

Specifically, the specific manner in which the sending module 701 sends the first power configuration parameter and the second power configuration parameter to the first network device may be:

The first power configuration parameter and the second power configuration parameter are configured by using RRC signaling or MAC signaling, or the first power configuration parameter and the second power configuration parameter are sent to the first network device by using physical layer signaling.

Optionally, the sending module 701 is further configured to send, to the first network device, information indicating a correspondence between at least one of a transmission layer number, an antenna port, a codeword, and a scrambling identifier, and a power configuration parameter; or And transmitting information for indicating a correspondence between at least one of a transmission layer number, an antenna port, and a codeword, and a beam identifier, and information for indicating a correspondence between the beam identifier and the power configuration parameter. or,

Any one of the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter further includes a power configuration identifier for indicating the power configuration parameter, and the sending module 701 is further configured to the first network device And transmitting information indicating a correspondence between at least one of a transmission layer number, an antenna port, a codeword, and a scrambling identifier and a power configuration identifier. Or the information about the correspondence between the at least one of the number of the transmission layer, the antenna port, and the codeword and the beam identifier, and the information used to indicate the correspondence between the beam identifier and the power configuration identifier.

Further, the second network device may use different powers for data transmission of different beams, so different beam identifiers may correspond to different power configuration parameters, and improve data transmission performance under different beams. The beam identification identifies a set of power configuration parameters. When the second network device is configured, the signaling overhead can be reduced, and the relevant beam information can be indicated in specific use. In addition, different beam identifiers may correspond to codewords, transport layers, and antenna ports, that is, different codewords or transport layers or antenna ports may be sent through different beams to improve corresponding codewords, transport layers, and antenna ports to transmit data. Performance.

Optionally, the network device 701 may further include a processing module 702, configured to process data or signaling sent by the external device.

Based on the same inventive concept, an embodiment of the present invention provides another network device. Please refer to FIG. 8. FIG. 8 is a schematic structural diagram of another network device according to an embodiment of the present invention. As shown in FIG. 8, the network device 800 can include a transceiver 801, a processor 802, and a memory 803, where:

The processor 802 may include, for example, a CPU or an ASIC, and may include one or more integrated circuits for controlling program execution, may include hardware circuits developed using an FPGA, and may include a baseband chip.

The number of memories 803 may be one or more. The memory 803 may include a ROM, a RAM, and a disk storage, and the like. The memory 803 can be used to store instructions required by the processor 802 to perform tasks, and can also be used to store data.

The transceiver 801 can belong to a radio frequency system for performing network communication with an external device, for example, can communicate with an external device through a network such as an Ethernet, a radio access network, or a wireless local area network.

The transceiver 801, the memory 803, and the processor 802 are connected to each other.

By programming the processor 802, the code corresponding to the method shown above is solidified into the chip, thereby enabling the chip to perform the method shown in the previous embodiment while it is running. How to set up processor 802 The programming is a technique well known to those skilled in the art and will not be described here.

The network device 800 can be used to perform the method described above with respect to Figures 2 - 4, such as a second network device. Therefore, for the functions and the like implemented by the units in the network device 800, reference may be made to the description of the previous method part, and details are not described herein.

It can be understood that, in actual application, the physical device corresponding to the sending module 701 in the network device 700 described in FIG. 7 may be the transceiver 801 in FIG. 8, and the physical device corresponding to the processing module 702 may be the processing in FIG. 802.

It can be seen that, in the network device described in FIG. 7 and FIG. 8 , the plurality of power configuration parameters sent by the network device to the first network device, and the first network device, according to the power configuration parameter corresponding to the antenna port set corresponding to the received data, and the reference The power of the signal determines the power of the received data, realizes demodulation of the received data, improves the demodulation accuracy, and improves the data transmission performance.

It should be noted that, in the above embodiments, the descriptions of the various embodiments are different, and the parts that are not described in detail in a certain embodiment may be referred to the related descriptions of other embodiments. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

For example, the division of the module or module is only a logical function division, and the actual implementation may have another division manner, for example, multiple modules or components may be combined or may be integrated into another system, or some features may be ignored. Or not. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or module, and may be electrical or otherwise.

The modules described as separate components may or may not be physically separated. The components displayed as modules may or may not be physical modules, that is, may be located in one place, or may be distributed to multiple network modules. Some or all of the units may be selected according to actual needs to implement the embodiments of the present invention.

The functional modules in the embodiments of the present invention may be integrated into one processing module, or each module may also be an independent physical module.

The integrated modules, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the technical solution of the present invention may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a computer device, such as a personal computer. , a server, or a network device or the like, or a processor performs all or part of the steps of the method of the various embodiments of the present invention. The foregoing storage medium includes: a universal serial bus flash drive, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, and the like, which can store program codes.

The above embodiments are only used to describe the technical solutions of the present invention in detail, but the description of the above embodiments is only for the purpose of facilitating the understanding of the embodiments of the present invention, and should not be construed as limiting the embodiments of the present invention. Variations or substitutions that may be readily conceived by those skilled in the art are intended to be included within the scope of the present invention.

Claims

A power configuration method, comprising:

Receiving, by the first network device, the first power configuration parameter and the second power configuration parameter sent by the second network device;

Receiving, by the first network device, a reference signal and data sent by the second network device, where the reference signal includes a reference signal of a first antenna port set and a reference signal of a second antenna port set;

Determining, by the first network device, a first power of data corresponding to the first antenna port set according to the first power configuration parameter and a reference signal of the first antenna port set, and configuring parameters according to the second power And a reference signal of the second antenna port set determines a second power of data corresponding to the second antenna port set.
The method according to claim 1, wherein at least one of the first power configuration parameter and the second power configuration parameter comprises a beam identifier, a beam antenna port, a reference signal power, and a power ratio. At least one of them.
The method according to claim 1 or 2, wherein the method further comprises:

The first network device receives a third power configuration parameter sent by the second network device, where the third power configuration parameter includes at least one of a beam identifier, a beam antenna port, a reference signal power, and a power ratio.
The method according to claim 2 or 3, wherein the reference signal comprises at least one of a demodulation reference signal and a first reference signal; the first reference signal comprises a beam reference signal, a motion reference signal, and At least one of the synchronization signals;

The power ratio includes at least one of the following:

a ratio of a data power of an antenna port set of the demodulation reference signal on the demodulated reference signal symbol to a power of the demodulation reference signal on the set of antenna ports;

a ratio of a data power of an antenna port set of the demodulation reference signal having a demodulation reference signal symbol to a power of the first reference signal;

a ratio of a data power of a set of antenna ports of the demodulation reference signal on the undemodulated reference signal symbol to a power of the demodulation reference signal on the set of antenna ports;

a ratio of a data power of an antenna port set of the demodulation reference signal on the undemodulated reference signal symbol to a data power of an antenna port set of the demodulation reference signal on the demodulated reference signal symbol;

A ratio of a data power of a set of antenna ports of the demodulation reference signal on the undemodulated reference signal symbol to a power of the first reference signal.
The method according to any one of claims 1 to 4, wherein any one of the first antenna port set and the second antenna port set includes at least one antenna port; the first And setting any one of the antenna port set and the second antenna port set to at least one codeword; any one of the first antenna port set and the second antenna port set and at least one The transport layer corresponds.
The method according to any one of claims 3 to 5, wherein the method further comprises:

Receiving, by the first network device, information that is used by the second network device to indicate a correspondence between at least one of a transmission layer number, an antenna port, a codeword, and a scrambling identifier, and a power configuration parameter; or

Any one of the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter further includes a power configuration identifier for indicating the power configuration parameter, the first network setting Receiving, by the second network device, information indicating a correspondence between at least one of a number of transmission layers, an antenna port, a codeword, and a scrambling identifier, and the power configuration identifier.
The method according to any one of claims 3 to 5, wherein the method further comprises:

Receiving, by the first network device, information that is used by the second network device to indicate a correspondence between at least one of a number of transmission layers, an antenna port, and a codeword, and a beam identifier;

The first network device receives information sent by the second network device to indicate a correspondence between a beam identifier and a power configuration parameter.
The method according to any one of claims 3 to 5, wherein any one of the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter further includes a power configuration identifier for indicating the power configuration parameter;

The method further includes:

Receiving, by the first network device, information that is used by the second network device to indicate a correspondence between at least one of a number of transmission layers, an antenna port, and a codeword, and a beam identifier;

The first network device receives information sent by the second network device to indicate a correspondence between a beam identifier and the power configuration identifier.
A power configuration method, the method comprising:

The second network device sends the first power configuration parameter and the second power configuration parameter to the first network device;

Transmitting, by the second network device, a reference signal and data to the first network device, where the reference signal includes a reference signal of a first antenna port set and a reference signal of a second antenna port set;

The first power configuration parameter and the reference signal of the first antenna port set are used to determine a first power of data corresponding to the first antenna port set; the second power configuration parameter and the second The reference signal of the antenna port set is used to determine a second power of data corresponding to the second antenna port set.
The method according to claim 9, wherein at least one of the first power configuration parameter and the second power configuration parameter comprises a beam identifier, a beam antenna port, a reference signal power, and a power ratio. At least one of them.
The method according to claim 9 or 10, wherein the method further comprises:

The second network device sends a third power configuration parameter to the first network device, where the third power configuration parameter includes at least one of a beam identifier, a beam antenna port, a reference signal power, and a power ratio.
The method according to claim 10 or 11, wherein the reference signal comprises at least one of a demodulation reference signal and a first reference signal; the first reference signal comprises a beam reference signal, a motion reference signal, and At least one of the synchronization signals;

The power ratio includes at least one of the following:

a ratio of a data power of an antenna port set of the demodulation reference signal on the demodulated reference signal symbol to a power of the demodulation reference signal on the set of antenna ports;

a ratio of a data power of an antenna port set of the demodulation reference signal having a demodulation reference signal symbol to a power of the first reference signal;

a ratio of a data power of a set of antenna ports of the demodulation reference signal on the undemodulated reference signal symbol to a power of the demodulation reference signal on the set of antenna ports;

a ratio of a data power of an antenna port set of the demodulation reference signal on the undemodulated reference signal symbol to a data power of an antenna port set of the demodulation reference signal on the demodulated reference signal symbol;

A ratio of a data power of a set of antenna ports of the demodulation reference signal on the undemodulated reference signal symbol to a power of the first reference signal.
The method according to any one of claims 9 to 12, wherein any one of the first antenna port set and the second antenna port set includes at least one antenna port; the first And setting any one of the antenna port set and the second antenna port set to at least one codeword; any one of the first antenna port set and the second antenna port set and at least one The transport layer corresponds.
The method according to any one of claims 11 to 13, wherein the method further comprises:

The second network device sends, to the first network device, information indicating a correspondence between at least one of a transmission layer number, an antenna port, a codeword, and a scrambling identifier, and a power configuration parameter; or

Any one of the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter further includes a power configuration identifier for indicating the power configuration parameter, the second network device And transmitting, to the first network device, information indicating a correspondence between at least one of a transmission layer number, an antenna port, a codeword, and a scrambling identifier and the power configuration identifier.
The method according to any one of claims 11 to 13, wherein the method further comprises:

The second network device sends, to the first network device, information indicating a correspondence between at least one of a number of transmission layers, an antenna port, and a codeword, and a beam identifier;

The second network device sends, to the first network device, information indicating a correspondence between the beam identifier and the power configuration parameter.
The method according to any one of claims 11 to 13, wherein any one of the first power configuration parameter, the second power configuration parameter and the third power configuration parameter further comprises a power configuration identifier for indicating the power configuration parameter;

The method further includes:

The second network device sends, to the first network device, information indicating a correspondence between at least one of a number of transmission layers, an antenna port, and a codeword, and a beam identifier;

The second network device sends, to the first network device, information indicating a correspondence between the beam identifier and the power configuration identifier.
A network device, where the network device includes:

a receiving module, configured to receive a first power configuration parameter and a second power configuration parameter sent by the second network device;

The receiving module is further configured to receive a reference signal and data sent by the second network device, where the reference signal includes a reference signal of a first antenna port set and a reference signal of a second antenna port set;

a processing module, configured to determine, according to the first power configuration parameter and a reference signal of the first antenna port set, a first power of data corresponding to the first antenna port set, and according to the second power configuration parameter and The reference signal of the second antenna port set determines a second power of data corresponding to the second antenna port set.
The network device according to claim 17, wherein said first power configuration parameter and said At least one of the second power configuration parameters includes at least one of a beam identification, a beam antenna port, a reference signal power, and a power ratio.
A network device according to claim 17 or 18, characterized in that

The receiving module is further configured to receive a third power configuration parameter that is sent by the second network device, where the third power configuration parameter includes at least one of a beam identifier, a beam antenna port, a reference signal power, and a power ratio.
The network device according to claim 18 or 19, wherein the reference signal comprises at least one of a demodulation reference signal and a first reference signal; the first reference signal comprises a beam reference signal, a mobile reference signal And at least one of the synchronization signals;

The power ratio includes at least one of the following:

a ratio of a data power of an antenna port set of the demodulation reference signal on the demodulated reference signal symbol to a power of the demodulation reference signal on the set of antenna ports;

a ratio of a data power of an antenna port set of the demodulation reference signal having a demodulation reference signal symbol to a power of the first reference signal;

a ratio of a data power of a set of antenna ports of the demodulation reference signal on the undemodulated reference signal symbol to a power of the demodulation reference signal on the set of antenna ports;

a ratio of a data power of an antenna port set of the demodulation reference signal on the undemodulated reference signal symbol to a data power of an antenna port set of the demodulation reference signal on the demodulated reference signal symbol;

A ratio of a data power of a set of antenna ports of the demodulation reference signal on the undemodulated reference signal symbol to a power of the first reference signal.
The network device according to any one of claims 17 to 20, wherein any one of the first antenna port set and the second antenna port set includes at least one antenna port; An antenna port set and any one of the second antenna port sets corresponding to at least one codeword; any one of the first antenna port set and the second antenna port set and at least A transport layer corresponds.
A network device according to any one of claims 19 to 21, characterized in that

The receiving module is further configured to receive, by the second network device, information indicating a correspondence between at least one of a transmission layer number, an antenna port, a codeword, and a scrambling identifier, and a power configuration parameter; or ,

Any one of the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter further includes a power configuration identifier for indicating the power configuration parameter, the receiving module, further And configured to receive, by the second network device, information indicating a correspondence between at least one of a number of transmission layers, an antenna port, a codeword, and a scrambling identifier, and the power configuration identifier.
A network device according to any one of claims 19 to 21, characterized in that

The receiving module is further configured to receive, by the second network device, information indicating a correspondence between at least one of a number of transmission layers, an antenna port, and a codeword, and a beam identifier;

The receiving module is further configured to receive information that is sent by the second network device to indicate a correspondence between a beam identifier and a power configuration parameter.
The network device according to any one of claims 19 to 21, wherein any one of the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter is further Included a power configuration identifier for indicating the power configuration parameter;

The receiving module is further configured to receive, by the second network device, information indicating a correspondence between at least one of a number of transmission layers, an antenna port, and a codeword, and a beam identifier;

The receiving module is further configured to receive information that is sent by the second network device to indicate a correspondence between the beam identifier and the power configuration identifier.
A network device, where the network device includes:

a sending module, configured to send, to the first network device, a first power configuration parameter and a second power configuration parameter;

The sending module is further configured to send a reference signal and data to the first network device, where the reference signal includes a reference signal of the first antenna port set and a reference signal of the second antenna port set;

The first power configuration parameter and the reference signal of the first antenna port set are used to determine a first power of data corresponding to the first antenna port set; the second power configuration parameter and the second The reference signal of the antenna port set is used to determine a second power of data corresponding to the second antenna port set.
The network device according to claim 25, wherein at least one of the first power configuration parameter and the second power configuration parameter comprises a beam identifier, a beam antenna port, a reference signal power, and a power ratio. At least one of them.
A network device according to claim 25 or 26, wherein

The sending module is further configured to send, to the first network device, a third power configuration parameter, where the third power configuration parameter includes at least one of a beam identifier, a beam antenna port, a reference signal power, and a power ratio.
The network device according to claim 26 or 27, wherein the reference signal comprises at least one of a demodulation reference signal and a first reference signal; the first reference signal comprises a beam reference signal, a mobile reference signal And at least one of the synchronization signals;

The power ratio includes at least one of the following:

a ratio of a data power of an antenna port set of the demodulation reference signal on the demodulated reference signal symbol to a power of the demodulation reference signal on the set of antenna ports;

a ratio of a data power of an antenna port set of the demodulation reference signal having a demodulation reference signal symbol to a power of the first reference signal;

a ratio of a data power of a set of antenna ports of the demodulation reference signal on the undemodulated reference signal symbol to a power of the demodulation reference signal on the set of antenna ports;

a ratio of a data power of an antenna port set of the demodulation reference signal on the undemodulated reference signal symbol to a data power of an antenna port set of the demodulation reference signal on the demodulated reference signal symbol;

A ratio of a data power of a set of antenna ports of the demodulation reference signal on the undemodulated reference signal symbol to a power of the first reference signal.
The network device according to any one of claims 25 to 28, wherein any one of the first antenna port set and the second antenna port set includes at least one antenna port; An antenna port set and any one of the second antenna port sets corresponding to at least one codeword; any one of the first antenna port set and the second antenna port set and at least A transport layer corresponds.
A network device according to any one of claims 27 to 29, characterized in that

The sending module is further configured to send, to the first network device, information indicating a correspondence between at least one of a transmission layer number, an antenna port, a codeword, and a scrambling identifier, and a power configuration parameter; or

Any one of the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter further includes a power configuration identifier for indicating the power configuration parameter, the sending module, further And transmitting, to the first network device, information indicating a correspondence between at least one of a transmission layer number, an antenna port, a codeword, and a scrambling identifier and the power configuration identifier.
A network device according to any one of claims 27 to 29, characterized in that

The sending module is further configured to send, to the first network device, information indicating a correspondence between at least one of a number of transmission layers, an antenna port, and a codeword, and a beam identifier;

The sending module is further configured to send, to the first network device, information for indicating a correspondence between a beam identifier and a power configuration parameter.
The network device according to any one of claims 27 to 29, wherein any one of the first power configuration parameter, the second power configuration parameter, and the third power configuration parameter is further Included a power configuration identifier for indicating the power configuration parameter;

The sending module is further configured to send, to the first network device, information indicating a correspondence between at least one of a number of transmission layers, an antenna port, and a codeword, and a beam identifier;

The sending module is further configured to send, to the first network device, information used to indicate a correspondence between the beam identifier and the power configuration identifier.