CN109391432B

CN109391432B - Method and device for reference signal configuration

Info

Publication number: CN109391432B
Application number: CN201710687547.7A
Authority: CN
Inventors: 向铮铮; 罗俊; 刘瑾; 袁璞
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-08-11
Filing date: 2017-08-11
Publication date: 2021-06-08
Anticipated expiration: 2037-08-11
Also published as: WO2019029488A1; CN109391432A

Abstract

The application provides a method and a device for reference signal configuration. The method comprises the following steps: determining reference signal resource configuration information, wherein the reference signal resource configuration information includes M first configuration information and N second configuration information, and an ith first configuration information in the M first configuration information corresponds to K in the N second configuration information_iA second configuration information, the ith first configuration information including K_iAt least one parameter of a reference signal resource, K_iJ second configuration information of the second configuration information comprises the K_iAt least one parameter, M, N, i, K, of a jth reference signal resource of the reference signal resources_iAnd j are positive integers; and sending the reference signal resource configuration information to the terminal equipment. According to the technical scheme of the embodiment of the application, the efficiency of the system can be improved.

Description

Method and device for reference signal configuration

Technical Field

The present application relates to the field of communications, and more particularly, to a method and apparatus for reference signal configuration.

Background

Wireless Communication technology has experienced rapid development in the past decades, and has successively experienced a first generation wireless Communication System based on an analog Communication System, a 2G wireless Communication System represented by a Global System for Mobile Communication (GSM), a 3G wireless Communication System represented by Wideband Code Division Multiple Access (WCDMA), and a Long Term Evolution (LTE) 4G wireless Communication System which has been widely used throughout the world and has achieved great success. Services supported by wireless communication systems have also evolved from voice, short message service, to now support wireless high-speed data communications. Meanwhile, the number of wireless connections worldwide is undergoing a continuous high-speed increase, and various new wireless service types, such as internet of things, automatic driving, etc., are emerging in large numbers, which all put higher demands on the next generation wireless communication system, i.e., the 5G system.

A Channel State Information Reference Signal (CSI-RS) is an important Reference Signal in an LTE network, and is mainly used for a terminal device to obtain wireless Channel Information CSI.

In a New Radio (NR) network, the CSI-RS may be used not only to acquire channel information but also to perform beam management and mobility measurement. Thus, the nature of CSI-RS is more complex and configurable parameters more than LTE. Since the CSI-RS resources are configured by each terminal device, when a plurality of CSI-RS resources need to be configured for the terminal device, the network device may indicate each parameter of each CSI-RS resource, and then send the corresponding signaling to the terminal device together. After receiving the signaling sent by the network device, the terminal device may read the configuration information of each CSI-RS resource. Thus, the signaling overhead is proportional to the number of configured CSI-RS resources. When the amount of CSI-RS resources is large, the signaling overhead incurred by the CSI-RS resources can be very large, thereby reducing the efficiency of the system.

Disclosure of Invention

The application provides a method and a device for configuring a reference signal, which can improve the efficiency of a system.

In a first aspect, a method for configuring a reference signal is provided, including:

determining reference signal resource configuration information, wherein the reference signal resource configuration information includes M first configuration information and N second configuration information, and an ith first configuration information in the M first configuration information corresponds to K in the N second configuration information_iA second configuration information, the ith first configuration information including K_iAt least one parameter of a reference signal resource, K_iJ second configuration information of the second configuration information comprises the K_iAt least one parameter, M, N, i, K, of a jth reference signal resource of the reference signal resources_iAnd j are positive integers;

and sending the reference signal resource configuration information to the terminal equipment.

According to the technical scheme of the embodiment of the invention, the reference signal resources are configured through the first configuration information and the second configuration information, wherein the first configuration information comprises at least one parameter of a plurality of reference signal resources, and the second configuration information comprises at least one parameter of one reference signal resource, so that repeated configuration of the parameters shared by the plurality of reference signal resources can be reduced, signaling overhead is reduced, and system efficiency can be improved.

In some possible implementations, the ith first configuration information further includes the K_iIdentification information of each of the reference signal resources; and/or, the K_iEach of the second configuration information further includes the K_iGroup identification information of individual reference signal resources.

In some possible implementations, the ith first configuration information includes the K_iAll parameters of the reference signal resource, and the jth second configuration information includes a parameter value of the jth reference signal resource and a different parameter in the ith first configuration information.

In this way, the second configuration information only needs to include parameters with different parameter values from those in the corresponding first configuration information, so that the configuration overhead can be reduced.

In some possible implementations, the ith first configuration information includes the K_iA part of parameters of a reference signal resource, wherein the jth second configuration information includes parameters not included in the ith first configuration information of the jth reference signal resource.

K_iThe parameters with the same parameter value of each reference signal resource are configured in the first configuration information, and other parameters are respectively configured in the respective second configuration information of each reference signal resource, so that the configuration overhead can be further reduced.

In some possible implementations, the ith first configuration information includes the K_iA part of parameters of a reference signal resource, the j second configuration informationThe information includes a parameter value of the jth reference signal resource, a parameter different from the parameter in the ith first configuration information, and a parameter not included in the ith first configuration information.

The first configuration information only comprises a part of parameters, and the second configuration information only comprises parameters with different parameter values from the corresponding first configuration information and parameters not included in the first configuration information, so that the configuration overhead can be reduced.

In some possible implementations, M is 1 and N is K_i。

For the case of no grouping or only one group, since there is only one first configuration information and the corresponding relationship between the first configuration information and the second configuration information is determined, the corresponding relationship may not be included in the first configuration information and/or the second configuration information, thereby further saving signaling overhead.

In some possible implementations, the correspondence between the first configuration information and the second configuration information may also be a predetermined correspondence. In this way, the correspondence may not need to be included in the first configuration information and/or the second configuration information, thereby further saving signaling overhead.

In some possible implementation manners, the M first configuration information sequentially corresponds to M groups of second configuration information, where a first M-1 group of the M groups of second configuration information sequentially includes a first M-1 group of the N second configuration information

A plurality of second configuration information, wherein the Mth group of second configuration information in the M groups of second configuration information comprises the last of the N second configuration information

Second configuration information.

In some possible implementations, the K_iThe reference signal resources are associated with the same synchronization signal block, or K_iThe reference signal resources have the same quasi-co-located QCL configuration.

K corresponding to the same first configuration information_iThe reference signal resources may have an association relationship such that they may have more of the same parameters.

In some possible implementations, the sending the reference signal resource configuration information to the terminal device includes:

and sending the reference signal resource configuration information to the terminal equipment through dedicated signaling.

In some possible implementations, the dedicated signaling may be RRC signaling.

sending the M pieces of first configuration information to the terminal equipment through a common signaling;

and sending the N pieces of second configuration information to the terminal equipment through dedicated signaling.

In some possible implementations, the common signaling may be PBCH, RMSI, or OSI.

In some possible implementations, the reference signal is a channel state information reference signal, CSI-RS, or a time-frequency tracking reference signal, TFT-RS.

In a second aspect, a method for configuring a reference signal is provided, including:

receiving reference signal resource configuration information sent by a network device, wherein the reference signal resource configuration information includes M first configuration information and N second configuration information, and an ith first configuration information in the M first configuration information corresponds to K in the N second configuration information_iA second configuration information, the ith first configuration information including K_iAt least one parameter of a reference signal resource, K_iJ second configuration information of the second configuration information comprises the K_iAt least one parameter, M, N, i, K, of a jth reference signal resource of the reference signal resources_iAnd j are positive integers;

and determining the configured reference signal resource according to the reference signal resource configuration information.

In some possible implementations, the ith first configuration information includes the K_iA part of parameters of the reference signal resource, wherein the jth second configuration information includes parameters of the jth reference signal resource different from the parameters of the ith first configuration information and parameters not included in the ith first configuration information.

In some possible implementation manners, for each reference signal resource, if the corresponding second configuration information includes a certain parameter, the parameter value in the second configuration information is taken as the standard, and if the corresponding second configuration information does not include a certain parameter, the parameter value in the corresponding first configuration information is taken as the standard.

In some possible implementationsM is 1 and N is K_i。

Second configuration information.

In some possible implementations, the receiving reference signal resource configuration information sent by the network device includes:

and receiving the reference signal resource configuration information sent by the network equipment through dedicated signaling.

receiving the M pieces of first configuration information sent by the network equipment through a common signaling;

and receiving the N pieces of second configuration information sent by the network equipment through dedicated signaling.

In a third aspect, an apparatus for reference signal configuration is provided, which includes a processor and a transceiver, and may perform the method in the first aspect or any possible implementation manner thereof.

In a fourth aspect, an apparatus for reference signal configuration is provided, which includes a processor and a transceiver, and may perform the method of the second aspect or any possible implementation manner thereof.

In a fifth aspect, a computer storage medium is provided, in which a program code is stored, and the program code can be used to instruct the execution of the method in the first aspect or the second aspect or any possible implementation manner thereof.

A sixth aspect provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first or second aspect described above or any possible implementation thereof.

Drawings

FIG. 1 is a schematic diagram of a system in which embodiments of the present invention are implemented.

Fig. 2 is a schematic diagram of a network architecture according to an embodiment of the present invention.

Fig. 3 is a diagram of CSI-RS mapping on one physical resource block pair.

Fig. 4 is a schematic flow chart of a method of reference signal configuration according to an embodiment of the present invention.

Fig. 5 is a diagram illustrating reference signal resource configuration information according to an embodiment of the invention.

Fig. 6 is a schematic block diagram of an apparatus for reference signal configuration according to one embodiment of the present invention.

Fig. 7 is a schematic block diagram of an apparatus for reference signal configuration according to another embodiment of the present invention.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

Fig. 1 shows a schematic diagram of a system to which embodiments of the present invention are applied. As shown in fig. 1, system 100 may include a network device 102 and

terminal devices

104, 106, 108, 110, 112, and 17, wherein the network device and the terminal devices are connected via wireless connections. It should be understood that fig. 1 only illustrates that the system includes one network device, but the embodiment of the present invention is not limited thereto, for example, the system may also include more network devices; similarly, the system may also comprise more terminal devices. It should also be understood that the system may also be referred to as a network, and the embodiments of the present invention are not limited thereto.

Various embodiments are described herein in connection with a terminal device. A terminal device may also refer to a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment. An access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication capability, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN) Network, etc.

By way of example, and not limitation, in embodiments of the present invention, the terminal device may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of applying wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

Various embodiments are described herein in connection with a network device. The Network device may be a device for communicating with a terminal device, and the Network device may be a Base Transceiver Station (BTS) in a Global System for Mobile communication (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB, NB) in a Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) System, an evolved Node B (eNB, or eNodeB) in a Long Term Evolution (LTE) System, a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or a relay Station, an Access point, a vehicle-mounted device, a wearable device, a Network device in a future 5G Network, a Network device in a future evolved PLMN Network, or the like.

In addition, in this embodiment of the present invention, a network device provides a service for a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (for example, a base station), and the cell may belong to a macro base station or a base station corresponding to a small cell (small cell), where the small cell may include: urban cells (Metro cells), Micro cells (Micro cells), Pico cells (Pico cells), Femto cells (Femto cells), and the like, and the small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services. In addition, the cell may also be a super cell (supercell).

Fig. 2 is a schematic diagram of a network architecture, which may be a network architecture diagram of an NR in a next generation wireless communication system, for example, to which an embodiment of the present invention may be applied. In the network architecture diagram, a network device may be divided into a Centralized Unit (CU) and a plurality of Transmission Reception Points (TRPs)/Distributed Units (DUs), that is, a Bandwidth-Based Unit (BBU) of the network device is reconfigured into functional entities of the DU and CU. It should be noted that the forms and numbers of the centralized units and the TRP/DUs do not limit the embodiments of the present invention. Although the forms of the respective corresponding centralized units of the network device 1 and the network device 2 shown in fig. 2 are different, the respective functions are not affected. It is understood that the TRP/DU within the scope of the centralized unit 1 and the dashed line is a constituent element of the network device 1, the TRP/DU within the scope of the centralized unit 2 and the solid line is a constituent element of the network device 2, and the network device 1 and the network device 2 are network devices (or referred to as base stations) involved in the NR system.

The CU may process functions of a Radio Resource Control (RRC) layer, a Packet Data Convergence Protocol (PDCP) layer, and the like, and even may support a part of functions of a core network sinking to an access network, which is referred to as an edge computing network in the term, to meet higher requirements of a future communication network for emerging services, such as video, network shopping, and virtual/augmented reality, on network delay.

The DU can mainly handle physical layer functions and layer 2 functions with high real-time requirements, and considering transmission resources of a Radio Remote Unit (RRU) and the DU, part of the physical layer functions of the DU can be moved up to the RRU, and even more aggressive DUs can be merged with the RRU along with the miniaturization of the RRU.

CU can be distributed in a centralized mode, DU distribution depends on the actual network environment, a core urban area is high in telephone traffic density, small in inter-station distance, and in areas with limited machine room resources, such as universities and large-scale performance venues, DU can also be distributed in a centralized mode, telephone traffic is sparse, inter-station distance is large, and in other areas, such as suburb counties and mountain areas, DU can be distributed.

The S1-C interface illustrated in fig. 2 may be a standard interface between a network device and a core network, and specifically, the device connected to S1-C is not shown in fig. 2.

In an LTE network, CSI-RS can be transmitted on 32 antenna ports (antenna ports) at most, and the corresponding antenna port number is p-15, 16. Regarding antenna ports, the spatial dimension in LTE is measured by "layer" and implemented by using multi-antenna transmission and multi-antenna reception techniques, each layer corresponds to an effective data stream and is mapped to a logical antenna port, each antenna port corresponds to a time-frequency resource grid and has a corresponding reference signal, so that a receiving end performs channel estimation, coherent demodulation, and the like.

The eNB may periodically transmit CSI-RS signals with a period of 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, and CSI-RS signals transmitted on different antenna ports may occupy different time-frequency resources. Fig. 3 shows the possible locations of time-frequency resources of the CSI-RS on one physical resource block pair.

The above description of CSI-RS for LTE may be a supplement to embodiments of the present invention. In the embodiment of the invention, the application of the CSI-RS is further changed compared with LTE. In NR networks, CSI-RS can be used not only to acquire channel information, but also to make beam management and mobility measurements. Thus, the nature of CSI-RS is more complex and configurable parameters more than LTE. Taking CSI-RS for mobility measurement as an example, the configurable parameters include: period, transmission bandwidth, measurement bandwidth, frequency position, sequence generation parameters, subcarrier spacing, information associated with a synchronization signal block, time-frequency resources, and the like. Some of these configurable parameters may be common to multiple CSI-RS resources, e.g., the periodicity of multiple CSI-RS resources associated with the same synchronization signal block is the same. In view of this, embodiments of the present invention provide a technical solution, where a plurality of reference signal resources are configured by using first configuration information common to a plurality of reference signal resources and second configuration information individual to each reference signal resource, so as to reduce configuration overhead and improve system efficiency.

It should be understood that the technical solutions in the embodiments of the present invention may be applied to various reference signals, and the embodiments of the present invention are not limited thereto. For example, besides CSI-RS, Time and Frequency Tracking Reference Signal (TFT-RS) also needs to be configured with various parameters, and therefore, the technical solution of the embodiment of the present invention can also be applied. In other words, the technical solutions of the embodiments of the present invention can be applied to any reference signal that needs to be configured with various parameters. For convenience of description, the following description will be made by taking CSI-RS or TFT-RS as an example.

For CSI-RS, the parameters may include measurement CSI-RS resource identity (measCSI-RS-Id-NR), cell identity (physcellld-NR), scrambling code identity (scramblingIdentity-NR), time-frequency resource configuration (resourcefing-NR), period and offset (subframeConfig-NR), transmission bandwidth (transmissionBW-NR), measurement bandwidth (measBW-NR), frequency location (frequency location-NR), subcarrier spacing (number-NR), associated synchronization signal block number (associateSSblock-NR), and so on; for the TFT-RS, the parameters may include measurement TFT-RS resource identifier (measTFT-RS-Id-NR), cell identifier (physcellld-NR), scrambling code identifier (scrambling identity-NR), time-frequency resource configuration (resourceConfig-NR), antenna port (antenna port count-NR), period and offset (subframe configuration-NR), subcarrier spacing (numerology-NR), and the like, but the embodiment of the present invention is not limited thereto.

Fig. 4 shows a schematic flow chart of a method of reference signal configuration of one embodiment of the present invention. The network device in fig. 4 may be the network device described previously; the terminal device may be the terminal device described above. Of course, in an actual system, the number of network devices and terminal devices may not be limited to the example of this embodiment or other embodiments, and will not be described below.

The network device determines reference signal resource configuration information 410.

The reference signal resource configuration information includes M first configuration information and N second configuration information, and an ith first configuration information of the M first configuration information corresponds to K of the N second configuration information_iA second configuration information, the ith first configuration information including K_iAt least one parameter of a reference signal resource, K_iJ second configuration information of the second configuration information comprises the K_iAt least one parameter, M, N, i, K, of a jth reference signal resource of the reference signal resources_iAnd j are positive integers.

In the embodiment of the present invention, two types of configuration information, that is, first configuration information and second configuration information, are used to configure a reference signal resource. For K_iA reference signal resource configured with at least one parameter common to them by a first configuration information; on the basis, for K_iEach of the reference signal resources is passed throughA second configuration information configures its corresponding at least one parameter. That is, K is the first configuration information_iA base configuration of the reference signal resources, and the second configuration information is a sub-configuration of each reference signal resource. Thus, for the N reference signal resources to be configured, there are N second configuration information and M first configuration information in total, where K_iThe second configuration information corresponds to the ith first configuration information. The K is_iK corresponding to the second configuration information_iThe reference signal resource may be a group corresponding to the ith first configuration information. That is, the N reference signal resources may be M groups, and the ith group includes K_iEach group of the reference signal resources corresponds to one first configuration information, and each reference signal resource corresponds to one second configuration information.

For example, as shown in fig. 5, the reference signal resource configuration information may include M first configuration information and N second configuration information, each first configuration information corresponding to a plurality (set) of reference signal resources, including at least one parameter common to the plurality (set) of reference signal resources; each second configuration information corresponds to a reference signal resource, and includes at least one parameter of the reference signal resource.

Optionally, in one embodiment of the present invention, M is 1, and N is K_i. That is, the N reference signal resources to be configured correspond to only one first configuration information. This is equivalent to the case where the N reference signal resources are not grouped or have only one group. In this case, N is equal to K_iThat is, one first configuration information corresponds to N second configuration information. The one first configuration information includes at least one parameter common to the N reference signal resources; n second configuration messagesEach of the second configuration information includes at least one parameter for each of the N reference signal resources.

Alternatively, in one embodiment of the invention, the K_iThe reference signal resources are associated with the same synchronization signal block, or K_iThe reference signal resources have the same Quasi-Co-Location (QCL) configuration.

Specifically, K corresponds to the same first configuration information_iThe reference signal resources may have an association relationship such that they may have more of the same parameters. For example, the K_iThe reference signal resources may be associated with the same synchronization signal block, or have the same quasi-parity configuration, or have other association relationships, which is not limited in the embodiment of the present invention.

Optionally, in an embodiment of the present invention, the ith first configuration information further includes the K_iIdentification information of each of the reference signal resources; and/or, the K_iEach of the second configuration information further includes the K_iGroup identification information of individual reference signal resources.

Specifically, the correspondence between the first configuration information and the second configuration information may be included in the first configuration information and/or the second configuration information. For example, the first configuration information may include a corresponding K therein_iAn identification list of reference signal resources. K corresponding to the first configuration information can be determined through the identification list_iReference signal resource and K_iSecond configuration information. This corresponds to a mapping from the first configuration information to the second configuration information. K_iEach of the second configuration information may include the K_iGroup identification information of individual reference signal resources. The group identification information identifies the K_iA reference signal resource, i.e. the K can be identified_iFirst configuration information corresponding to the reference signal resources. The first configuration information corresponding to each second configuration information may be determined by the set of identification information. This corresponds to a mapping from the second configuration information to the first configuration information.

It should be understood that, the correspondence relationship between the first configuration information and the second configuration information may adopt a unidirectional mapping, that is, only a mapping from the first configuration information to the second configuration information or a mapping from the second configuration information to the first configuration information, or may adopt a bidirectional mapping, that is, a mapping from the first configuration information to the second configuration information and a mapping from the second configuration information to the first configuration information are adopted at the same time, which is not limited by the embodiment of the present invention.

Optionally, for the case of no grouping or only one group, since there is only one first configuration information and the corresponding relationship between the first configuration information and the second configuration information is determined, the corresponding relationship may not be included in the first configuration information and/or the second configuration information, thereby further saving signaling overhead.

Optionally, in an embodiment of the present invention, the M first configuration information sequentially corresponds to M groups of second configuration information, where a first M-1 group of the M groups of second configuration information sequentially includes a first M-1 group of the N second configuration information

Second configuration information.

Specifically, the correspondence relationship between the first configuration information and the second configuration information may be a predetermined correspondence relationship. In this way, the correspondence may not need to be included in the first configuration information and/or the second configuration information, thereby further saving signaling overhead. The terminal device may determine which second configuration information the first configuration information corresponds to according to a predetermined correspondence. For example, it may be predetermined that M first configuration information correspond to N second configuration information in order, first

Each of the second configuration information

The second configuration information is a group, and the M-1 second configuration information groups respectively correspond to the first M-1 first configuration information in the M first configuration information, and finally

The second configuration information corresponds to the Mth first configuration information, wherein,

indicating a rounding down.

It should be understood that the above-mentioned predetermined correspondence relationship is only an example, and other predetermined correspondence relationships may be adopted as the correspondence relationship between the first configuration information and the second configuration information, as long as the network side and the terminal side are well defined in advance, and the embodiment of the present invention is not limited thereto.

Optionally, in an embodiment of the present invention, the ith first configuration information includes the K_iAll parameters of the reference signal resource, and the jth second configuration information includes a parameter value of the jth reference signal resource and a different parameter in the ith first configuration information.

Specifically, in the present embodiment, the first configuration information includes K corresponding thereto_iAll parameters of the reference signal resources, accordingly, each second configuration information only needs to include parameters with different parameter values from those in the first configuration information. For example, a default value for all parameters may be included in the first configuration information. For each reference signal resource, if the parameter value of a certain parameter is different from that in the first configuration information, the reference signal resource is configured in the second configuration information. In this case, the parameter value in the second configuration information is used as a standard, that is, the parameter value in the second configuration information overrides the parameter value in the first configuration information. If the parameter value of a certain parameter is the same as that in the first configuration information, the parameter value is not configured in the second configuration information any more, namely the parameter value in the first configuration information is adopted. Thus, the second configuration informationOnly the parameter value and the parameter different from the first configuration information corresponding to the parameter value need to be included, so that the configuration overhead can be reduced.

For example, for CSI-RS, the configuration signaling of the reference signal resource configuration information may be as follows, where "basic MeasCSI-RS-Config-NR" represents the first configuration information and "MeasCSI-RS-Config-NR" represents the second configuration information:

in the above example, the parameters in "MeasCSI-RS-Config-NR" may be selected based on the parameters in "BasicMeasCSI-RS-Config-NR". That is, for each reference signal resource, if a certain parameter thereof is the same as a parameter value of a corresponding parameter in "BasicMeasCSI-RS-Config-NR", the parameter is not included in "MeasCSI-RS-Config-NR"; if a certain parameter is different from the parameter value of the corresponding parameter in the basic MeasCSI-RS-Config-NR, the parameter is included in the "MeasCSI-RS-Config-NR", in which case the parameter value in the "MeasCSI-RS-Config-NR" is used as the standard.

The "subMeasCSI-RS-ID-List-NR" represents an identification List of a corresponding reference signal resource, and in the case that the correspondence between the "BasicMeasCSI-RS-Config-NR" and the "MeasCSI-RS-Config-NR" is preset, this item may be omitted and will not be described in detail below.

For example, for a case that the correspondence between the first configuration information and the second configuration information adopts a predetermined correspondence, the configuration signaling of the reference signal resource configuration information may be as follows:

for the case of no grouping or only one group, the configuration signaling of the reference signal resource configuration information may be as follows:

for TFT-RS, the configuration signaling of the reference signal resource configuration information may be as follows, where "BasicMeas TFT-RS-Config-NR" denotes the first configuration information and "MeasTFT-RS-Config-NR" denotes the second configuration information:

optionally, in an embodiment of the present invention, the ith first configuration information includes the K_iA part of parameters of a reference signal resource, wherein the jth second configuration information includes parameters not included in the ith first configuration information of the jth reference signal resource.

Specifically, in the present embodiment, the first configuration information includes K corresponding thereto_iA portion of parameters of a reference signal resource. That is, the parameters in the first configuration information are also optional, and are no longer all parameters. Accordingly, each second configuration information only needs to include parameters not included in the first configuration information. For example, only for K is selected in the first configuration information_iThe parameter value is the same parameter for each reference signal resource. Thus, for K_iThe second configuration information of each of the reference signal resources only needs to include the remaining parameters. That is, K_iThe parameters with the same parameter value of each reference signal resource are configured in the first configuration information, and other parameters are respectively configured in the respective second configuration information of each reference signal resource, so that the configuration overhead can be further reduced.

OptionallyIn one embodiment of the present invention, the ith first configuration information includes the K_iA part of parameters of the reference signal resource, wherein the jth second configuration information includes parameters of the jth reference signal resource different from the parameters of the ith first configuration information and parameters not included in the ith first configuration information.

Specifically, for the first configuration information including its corresponding K_iIn the case of a part of parameters of the reference signal resource, each of the second configuration information may include parameters having different parameter values from those in the first configuration information and parameters not included in the first configuration information. For example, a default value of a part of the parameters may be included in the first configuration information. This part of the parameters except for K_iFor each reference signal resource, there may be a parameter with the same parameter value, but a parameter with a parameter value different from the parameter value of the corresponding parameter of a reference signal resource. In this way, the second configuration information includes parameters whose parameter values are different from those in the first configuration information, in addition to parameters that are not included in the first configuration information, with respect to the latter, the parameter values in the second configuration information are subject to the standard.

For the case that the first configuration information includes a part of parameters, taking CSI-RS as an example, the configuration signaling of the reference signal resource configuration information may be as follows:

420, the network device sends the reference signal resource configuration information to the terminal device.

The reference signal resource configuration information may be sent to the terminal device through one signaling, or may be sent to the terminal device through multiple signaling.

Optionally, in an embodiment of the present invention, the network device may send the reference signal resource configuration information to the terminal device through dedicated signaling.

For example, the network device may send the reference signal Resource configuration information through Radio Resource Control (RRC) signaling.

Optionally, in an embodiment of the present invention, the network device may send the M first configuration information to the terminal device through a common signaling; and sending the N pieces of second configuration information to the terminal equipment through dedicated signaling.

Specifically, the first configuration information and the second configuration information may be separately transmitted, the first configuration information being transmitted through common signaling, and the second configuration information being transmitted through dedicated signaling.

For example, the common signaling may be a Physical Broadcast Channel (PBCH), remaining system information (RMSI), or Other System Information (OSI); the dedicated signaling may be RRC signaling, but the embodiment of the present invention is not limited thereto.

Taking CSI-RS as an example, the configuration signaling of the first configuration information may be as follows:

the configuration signaling of the second configuration information may be as follows:

430, the terminal device determines the configured reference signal resource according to the reference signal resource configuration information.

And the terminal equipment receives the reference signal resource configuration information and determines the reference signal resource configured by the network side according to the M pieces of first configuration information and the N pieces of second configuration information. Specifically, for each reference signal resource, if the corresponding second configuration information includes a certain parameter, the parameter value in the second configuration information is taken as the standard, and if the corresponding second configuration information does not include a certain parameter, the parameter value in the corresponding first configuration information is taken as the standard. In this way, the terminal device can acquire all parameters of the reference signal resource, and thus can determine the reference signal resource.

It should be understood that various embodiments of the present invention may be implemented individually or in combination, and the embodiments of the present invention are not limited thereto.

It should be understood that the specific examples in the embodiments of the present invention are provided only to help those skilled in the art better understand the embodiments of the present invention, and do not limit the scope of the embodiments of the present invention.

It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

The method of reference signal configuration according to an embodiment of the present invention is described above in detail, and an apparatus of reference signal configuration according to an embodiment of the present invention will be described below.

Fig. 6 is a schematic diagram of an apparatus for reference signal configuration according to one embodiment of the present invention. The apparatus may be a network device.

It should be understood that the apparatus may correspond to the network device in each method embodiment, and may have any function of the network device in the method.

As shown in fig. 6, the apparatus includes a processor 610 and a transceiver 620.

Alternatively, the transceiver 620 may be referred to as a Remote Radio Unit (RRU), a transceiver unit, a transceiver, or a transceiver circuit, etc. The transceiver 620 may include at least one antenna and a radio frequency unit, and the transceiver 620 may be used for transceiving of radio frequency signals and conversion of the radio frequency signals to baseband signals.

Optionally, the apparatus may include a baseband unit (BBU) including the processor 610. The baseband unit may be used for baseband processing, such as channel coding, multiplexing, modulation, spreading, etc., and for controlling network devices. The transceiver 620 and the baseband unit may be physically located together or may be physically separated, i.e., distributed network devices.

In an example, the baseband unit may be formed by one or more boards, and the boards may jointly support a radio access network of a single access system, or may respectively support radio access networks of different access systems.

In one example, the baseband unit may be reconfigured as the aforementioned DU and CU functional entities.

The baseband unit includes a processor 610. The processor 610 may be configured to control the network device to perform the corresponding operations in the foregoing method embodiments. Optionally, the baseband unit may further include a memory to store necessary instructions and data.

The processor 610 is configured to determine reference signal resource configuration information, where the reference signal resource configuration information includes M first configuration information and N second configuration information, and an ith first configuration information of the M first configuration information corresponds to K of the N second configuration information_iA second configuration information, the ith first configuration information including K_iAt least one parameter of a reference signal resource, K_iJ second configuration information of the second configuration information comprises the K_iAt least one parameter, M, N, i, K, of a jth reference signal resource of the reference signal resources_iAnd j are positive integers;

the transceiver 620 is configured to send the reference signal resource configuration information to a terminal device.

Optionally, the ith first configuration information further includes the K_iIdentification information of each of the reference signal resources; and/or, the K_iEach of the second configuration information further includes the K_iGroup identification information of individual reference signal resources.

Optionally, the ith first configuration information includes the K_iAll parameters of the reference signal resource, and the jth second configuration information includes a parameter value of the jth reference signal resource and a different parameter in the ith first configuration information.

Optionally, the ith first configuration information includes the K_iA part of parameters of a reference signal resource, wherein the jth second configuration information includes parameters not included in the ith first configuration information of the jth reference signal resource.

Optionally, the ith first configuration information includes the K_iA part of parameters of the reference signal resource, wherein the jth second configuration information includes parameters of the jth reference signal resource different from the parameters of the ith first configuration information and parameters not included in the ith first configuration information.

Optionally, M is 1 and N is K_i。

Optionally, the M first configuration information sequentially corresponds to M groups of second configuration information, where a first M-1 group of the M groups of second configuration information sequentially includes a first M-1 group of the N second configuration information

Second configuration information.

Alternatively, the K_iThe reference signal resources are associated with the same synchronization signal block, or K_iThe reference signal resources have the same quasi-co-located QCL configuration.

Optionally, the transceiver 620 is specifically configured to:

sending the M pieces of first configuration information to the terminal equipment through a common signaling; and sending the N second configuration information to the terminal device through dedicated signaling.

Optionally, the reference signal is a channel state information reference signal CSI-RS or a time-frequency tracking reference signal TFT-RS.

Fig. 7 is a schematic diagram of an apparatus for reference signal configuration according to another embodiment of the present invention. The apparatus may be a terminal device.

It should be understood that the apparatus may correspond to the terminal device in each method embodiment, and may have any function of the terminal device in the method.

As shown in fig. 7, the apparatus includes a processor 710 and a transceiver 720.

Optionally, the transceiver 720 may include a control circuit and an antenna, wherein the control circuit may be used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals, and the antenna may be used for transceiving radio frequency signals.

Optionally, the apparatus may also comprise other main components of the terminal device, such as memory, input output means, etc.

The processor 710 may be configured to process the communication protocol and the communication data, and control the entire terminal device, execute a software program, and process data of the software program, for example, to support the terminal device to perform corresponding operations in the foregoing method embodiments. The memory is used primarily for storing software programs and data. When the terminal device is powered on, the processor 710 may read the software program in the memory, interpret and execute the instructions of the software program, and process the data of the software program.

The transceiver 720 is configured to receive reference signal resource configuration information sent by a network device, where the reference signal resource configuration information includes M first configuration information and N second configuration information, and an ith first configuration information in the M first configuration information corresponds to K in the N second configuration information_iA second configuration information, the ith first configuration information including K_iAt least one parameter of a reference signal resource, K_iA jth second configuration in the second configuration informationThe information includes the K_iAt least one parameter, M, N, i, K, of a jth reference signal resource of the reference signal resources_iAnd j are positive integers;

the processor 710 is configured to determine a configured reference signal resource according to the reference signal resource configuration information.

Optionally, M is 1 and N is K_i。

Second configuration information.

Optionally, the transceiver 720 is specifically configured to:

receiving the M pieces of first configuration information sent by the network equipment through a common signaling; and receiving the N second configuration information sent by the network device through dedicated signaling.

It is to be understood that the processor 610 or the processor 710 in the embodiments of the present invention may be implemented by a processing unit or a chip, and alternatively, the processing unit may be formed by a plurality of units in the implementation process.

It should be understood that the transceiver 620 or the transceiver 720 in the embodiments of the present invention may be implemented by a transceiver unit or a chip, and alternatively, the transceiver 620 or the transceiver 720 may be constituted by a transmitter or a receiver, or a transmitting unit or a receiving unit.

It is to be understood that the processor 610 and the transceiver 620 in the embodiments of the present invention may be implemented by a chip, and the processor 710 and the transceiver 720 may be implemented by a chip.

Optionally, the network device or the terminal device may further include a memory, the memory may store program codes, and the processor calls the program codes stored in the memory to implement the corresponding functions of the network device or the terminal device. Alternatively, the processor and the memory may be implemented by chips.

The embodiment of the invention also provides a processing device, which comprises a processor and an interface;

the processor is configured to perform the methods in the various embodiments of the invention described above.

The processing device may be a chip, the processor may be implemented by hardware or may be implemented by software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor implemented by reading software code stored in a memory, which may be integrated in the processor, located external to the processor, or stand-alone.

For example, the processing Device may be a Field-Programmable Gate Array (FPGA), an Application-Specific Integrated Circuit (ASIC), a System on Chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a Digital Signal processing Circuit (DSP), a Microcontroller (MCU), a Programmable Logic Device (PLD), or other Integrated chips.

The embodiment of the invention also provides a device for configuring the reference signal, which comprises a processing unit and a transmitting-receiving unit. The processing unit and the transceiver unit may be implemented in software or hardware. In the case of a hardware implementation, the processing unit may be the processor 610 in fig. 6, and the transceiving unit may be the transceiver 620 in fig. 6; alternatively, the processing unit may be the processor 710 in fig. 7, and the transceiver unit may be the transceiver 720 in fig. 7.

The embodiment of the invention also provides a communication system which comprises the network equipment in the network equipment embodiment and the terminal equipment in the terminal equipment embodiment.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

It should be understood that, in the embodiment of the present invention, the term "and/or" is only one kind of association relation describing an associated object, and means that three kinds of relations may exist. For example, a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of reference signal configuration, comprising:

determining reference signal resource configuration information, wherein the reference signal resource configuration information includes M pieces of first configuration information and N pieces of second configuration information, and an ith piece of first configuration information in the M pieces of first configuration information corresponds to K in the N pieces of second configuration information_iA second configuration information, the ith first configuration information including K_iAt least one parameter of a reference signal resource, K_iThe j-th second configuration information in the second configuration information comprises the K_iAt least one parameter, M, N, i, K, of a jth reference signal resource of the reference signal resources_iAnd j are positive integers;

sending the reference signal resource configuration information to terminal equipment;

the M pieces of first configuration information sequentially correspond to M groups of second configuration information, wherein the first M-1 groups of second configuration information in the M groups of second configuration information sequentially comprise the first M-1 groups of the N pieces of second configuration information

A plurality of second configuration information, wherein an Mth group of the M groups of second configuration information comprises a last one of the N second configuration information

Second configuration information.

2. The method of claim 1, wherein the ith first configuration information further comprises the K_iIdentification information of each of the reference signal resources; and/or, said K_iEach of the second configuration information further includes the K_iGroup identification information of individual reference signal resources.

3. The method according to claim 1 or 2, wherein the ith first configuration information comprises the K_iAll parameters of the reference signal resource, and the jth second configuration information includes a parameter value of the jth reference signal resource and a parameter different from the ith first configuration information.

4. The method according to claim 1 or 2, wherein the ith first configuration information comprises the K_iA part of parameters of the reference signal resources, wherein the jth second configuration information includes parameters not included in the ith first configuration information of the jth reference signal resource.

5. The method according to claim 1 or 2, wherein the ith first configuration information comprises the K_iA part of parameters of the reference signal resources, wherein the jth second configuration information includes parameters of which parameter values are different from those of the ith first configuration information and parameters not included in the ith first configuration information.

6. The method of claim 1 or 2, wherein M is 1 and N is K_i。

7. The method according to claim 1 or 2,said K_iThe reference signal resources are associated with the same synchronization signal block, or K_iThe reference signal resources have the same quasi-co-located QCL configuration.

8. The method according to claim 1 or 2, wherein the sending the reference signal resource configuration information to the terminal device comprises:

and sending the reference signal resource configuration information to the terminal equipment through a special signaling.

9. The method according to claim 1 or 2, wherein the sending the reference signal resource configuration information to the terminal device comprises:

and sending the N pieces of second configuration information to the terminal equipment through special signaling.

10. The method according to claim 1 or 2, wherein the reference signal is a channel state information reference signal, CSI-RS, or a time-frequency tracking reference signal, TFT-RS.

11. A method of reference signal configuration, comprising:

receiving reference signal resource configuration information sent by a network device, wherein the reference signal resource configuration information includes M pieces of first configuration information and N pieces of second configuration information, and an ith piece of first configuration information in the M pieces of first configuration information corresponds to K in the N pieces of second configuration information_iA second configuration information, the ith first configuration information including K_iAt least one parameter of a reference signal resource, K_iThe j-th second configuration information in the second configuration information comprises the K_iAt least one parameter, M, N, i, K, of a jth reference signal resource of the reference signal resources_iAnd j are positive integers;

determining the configured reference signal resource according to the reference signal resource configuration information;

Second configuration information.

12. The method of claim 11, wherein the ith first configuration information further comprises the K_iIdentification information of each of the reference signal resources; and/or, said K_iEach of the second configuration information further includes the K_iGroup identification information of individual reference signal resources.

13. The method according to claim 11 or 12, wherein the ith first configuration information comprises the K_iAll parameters of the reference signal resources, wherein the jth second configuration information comprises parameter values of the jth reference signal resource and different parameters in the ith first configuration information; or,

the ith first configuration information includes the K_iA part of parameters of a reference signal resource, wherein the jth second configuration information includes parameters not included in the ith first configuration information of the jth reference signal resource; or,

the ith first configuration information includes the K_iA part of parameters of the reference signal resources, wherein the jth second configuration information comprises parameter values of the jth reference signal resource different from those of the ith first configuration informationAnd parameters not included in the ith first configuration information.

14. The method of claim 11 or 12, wherein M is 1 and N is K_i。

15. The method according to claim 11 or 12, wherein the receiving the reference signal resource configuration information sent by the network device comprises:

receiving the reference signal resource configuration information sent by the network equipment through a dedicated signaling; or,

receiving the M pieces of first configuration information sent by the network equipment through common signaling; and receiving the N pieces of second configuration information sent by the network equipment through dedicated signaling.

16. An apparatus for reference signal configuration, comprising a processor and a transceiver; wherein,

the processor is configured to determine reference signal resource configuration information, where the reference signal resource configuration information includes M first configuration information and N second configuration information, and an ith first configuration information of the M first configuration information corresponds to K of the N second configuration information_iA second configuration information, the ith first configuration information including K_iAt least one parameter of a reference signal resource, K_iThe j-th second configuration information in the second configuration information comprises the K_iAt least one parameter, M, N, i, K, of a jth reference signal resource of the reference signal resources_iAnd j are positive integers;

the transceiver is configured to send the reference signal resource configuration information to a terminal device;

Second configuration information.

17. The apparatus of claim 16, wherein the ith first configuration information further comprises the K_iIdentification information of each of the reference signal resources; and/or, said K_iEach of the second configuration information further includes the K_iGroup identification information of individual reference signal resources.

18. The apparatus according to claim 16 or 17, wherein the ith first configuration information comprises the K_iAll parameters of the reference signal resources, wherein the jth second configuration information comprises parameter values of the jth reference signal resource and different parameters in the ith first configuration information; or,

the ith first configuration information includes the K_iA part of parameters of the reference signal resources, wherein the jth second configuration information includes parameters of which parameter values are different from those of the ith first configuration information and parameters not included in the ith first configuration information.

19. The apparatus of claim 16 or 17, wherein M is 1 and N is K_i。

20. The apparatus according to claim 16 or 17, wherein the transceiver is specifically configured to:

sending the reference signal resource configuration information to the terminal equipment through a special signaling; or,

sending the M pieces of first configuration information to the terminal equipment through a common signaling; and sending the N pieces of second configuration information to the terminal equipment through dedicated signaling.

21. An apparatus for reference signal configuration, comprising a processor and a transceiver; wherein,

the transceiver is configured to receive reference signal resource configuration information sent by a network device, where the reference signal resource configuration information includes M pieces of first configuration information and N pieces of second configuration information, and an ith piece of first configuration information in the M pieces of first configuration information corresponds to K in the N pieces of second configuration information_iA second configuration information, the ith first configuration information including K_iAt least one parameter of a reference signal resource, K_iThe j-th second configuration information in the second configuration information comprises the K_iAt least one parameter, M, N, i, K, of a jth reference signal resource of the reference signal resources_iAnd j are positive integers;

the processor is configured to determine a configured reference signal resource according to the reference signal resource configuration information;

Second configuration information.

22. The apparatus of claim 21, wherein the ith first configuration information further comprises the K_iIdentification information of each of the reference signal resources; and/or, said K_iEach of the second configuration information further includes the K_iGroup identification information of individual reference signal resources.

23. The apparatus according to claim 21 or 22, wherein the ith first configuration information comprises the K_iAll parameters of the reference signal resources, wherein the jth second configuration information comprises parameter values of the jth reference signal resource and different parameters in the ith first configuration information; or,

24. The apparatus of claim 21 or 22, wherein M is 1 and N is K_i。

25. The apparatus according to claim 21 or 22, wherein the transceiver is specifically configured to:

receiving the M pieces of first configuration information sent by the network equipment through common signaling; and receiving the N second configuration information sent by the network device through dedicated signaling.

26. A computer storage medium, characterized in that the computer storage medium has stored therein a program code, which can be used to instruct execution of the method according to any one of claims 1 to 15.