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CN118175642B - Communication method, terminal equipment, communication device and storage medium - Google Patents

Communication method, terminal equipment, communication device and storage medium Download PDF

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Publication number
CN118175642B
CN118175642B CN202410609914.1A CN202410609914A CN118175642B CN 118175642 B CN118175642 B CN 118175642B CN 202410609914 A CN202410609914 A CN 202410609914A CN 118175642 B CN118175642 B CN 118175642B
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China
Prior art keywords
transmission
transmission period
terminal device
configuration
initial
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CN202410609914.1A
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CN118175642A (en
Inventor
赵大骞
曾勇波
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Honor Device Co Ltd
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Honor Device Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A communication method, a terminal device, a communication device and a storage medium relate to the technical field of communication. The method comprises the following steps: acquiring initial transmission configuration of SRS of a plurality of terminal devices, wherein the initial transmission configuration at least comprises initial transmission period, initial time slot offset and initial transmission power of the SRS; determining a first transmission period, a first time slot offset and a first transmission power of SRS of each terminal device according to a plurality of initial transmission configurations; for each terminal device, when the first transmission period is different from the initial transmission period and/or the first slot offset is different from the initial slot offset, generating a first transmission configuration of the terminal device, and transmitting the first transmission configuration to the terminal device, wherein the first transmission configuration comprises a configuration of the first transmission period, the first slot offset and the first transmission power of the SRS. The method reduces the fluctuation amplitude of SRS interference and reduces the information interaction quantity, the calculation complexity and the power indication overhead.

Description

Communication method, terminal equipment, communication device and storage medium
Technical Field
The present application relates to the field of communications technologies, and in particular, to a communication method, a terminal device, a communication apparatus, and a storage medium.
Background
Currently, when a terminal device is in the range of multiple transceiving points (transmission receiving point/transmission reception point, TRP) co-coverage, multiple TRPs may cooperate to provide data transmission for the terminal device. In a multi-station cooperative scenario, the plurality of TRPs include at least one service TRP and at least one cooperative TRP, the cooperative TRP may be the same as the service TPR in a transceiving mode, a frequency point, a bandwidth, a time slot configuration, and the like, and the cooperative TRP is a TRP with the strongest reference signal received Power (REFERENCE SIGNAL RECEIVING Power, RSRP) except the service TRP.
When the number of the terminal devices is large, the cooperative TRP of the first terminal device may be used as a service TRP of the second terminal device, and at this time, a channel Sounding Reference Signal (SRS) sent by the first terminal device may cause inaccurate downlink channel estimation of the second terminal device by the cooperative TRP of the first terminal device. That is, when the number of terminal devices is large, SRS interference is aggravated and interference fluctuation is large.
The prior measures are that before terminal equipment performs SRS transmission in a multi-station cooperative scene, TRP needs to acquire terminal equipment interference information of all stations in real time, and transmit power of pilot signals is calculated and indicated to the terminal equipment, but the mode obviously increases information interaction quantity, calculation complexity and power indication cost.
Disclosure of Invention
In order to solve the above problems, the present application provides a communication method, a terminal device, a communication apparatus, and a storage medium, which reduce the fluctuation range of SRS interference, and reduce the amount of information interaction, the computational complexity, and the power indication overhead.
In a first aspect, the present application provides a communication method, when applied to a terminal device, the method includes: transmitting uplink control information UCI, wherein UCI indicates initial transmission configuration of a channel sounding reference signal SRS of terminal equipment, and the initial transmission configuration at least comprises an initial transmission period, an initial time slot offset and initial transmission power of the SRS; receiving a first transmission configuration, wherein the first transmission configuration comprises a first transmission period of SRS, a first time slot offset and a first transmission power; updating the SRS sending configuration of the terminal equipment according to the first indication information.
In the scheme provided by the application, the terminal equipment can report the initial sending configuration of the SRS to the communication device, and the communication device can perform uniform updating configuration after acquiring the initial sending configuration of each terminal equipment, so that the first sending configuration of the SRS is updated to each terminal equipment. That is, only one configuration update is needed to be sent, and then the terminal device can directly send the SRS each time, each network device no longer needs to acquire the SRS sending configuration information of the terminal device of the total station in real time, and no longer needs to repeatedly calculate the pilot sending power and indicate the pilot sending power to the terminal device, so that the information interaction amount, the calculation complexity and the pilot power indication overhead are obviously reduced.
In one possible implementation, the first transmission configuration is indicated by first indication information, where the first indication information is a medium access control element MAC CE signaling, and the MAC CE signaling includes a new power indication field and a new transmission period indication field, where the power indication field indicates a first transmission power, and the transmission period indication field indicates a first transmission period and a first slot offset.
In one possible implementation, the first transmission configuration is indicated by first indication information, where the first indication information is downlink control information DCI, and the DCI includes a power indication field and a newly added transmission period indication field, where the power indication field indicates a first transmission power, and the transmission period indication field indicates a first transmission period and a first slot offset.
In one possible implementation manner, the first indication information includes a first field, and updating, according to the first transmission configuration, a transmission configuration of the SRS of the terminal device includes: when the first field is in the first state, replacing the initial transmission configuration with the first transmission configuration; when the first field is in the second state, the initial transmission configuration is maintained unchanged.
In a second aspect, the present application provides a communication method comprising: acquiring initial transmission configuration of channel Sounding Reference Signals (SRS) of a plurality of terminal devices, wherein the initial transmission configuration at least comprises an initial transmission period, initial time slot offset and initial transmission power of the SRS; determining a first transmission period, a first time slot offset and a first transmission power of SRS of each terminal device according to a plurality of initial transmission configurations; for each terminal device, when the first transmission period is different from the initial transmission period, or the first slot offset is different from the initial slot offset, or the first transmission power is different from the initial transmission power, generating a first transmission configuration of the terminal device, and transmitting the first transmission configuration to the terminal device, wherein the first transmission configuration comprises the first transmission period, the first slot offset and the first transmission power of the SRS.
In the scheme provided by the application, the communication device can perform unified updating configuration after acquiring the initial sending configuration of each terminal device, and update the first sending configuration of the SRS to each terminal device. That is, only one transmission configuration update is needed, and the terminal device can directly transmit the SRS each time after the SRS is transmitted, the communication device no longer needs to acquire the transmission configuration information of the SRS of the terminal device of the total station in real time, and no longer needs to repeatedly calculate the pilot transmission power and indicate the pilot transmission power to the terminal device, thereby remarkably reducing the information interaction amount, the calculation complexity and the pilot power indication overhead.
In one possible implementation manner, the sending the first sending configuration to the terminal device specifically includes: and sending the first configuration information to the first network equipment so that the first network equipment sends first indication information to the terminal equipment, wherein the first configuration information comprises first sending configuration, and the first indication information indicates the first sending configuration.
In this implementation, the first indication information may be sent by the centralized processing device to the terminal device through the first network device to enable updating of the sending configuration. The first network device is a network device that provides services to the terminal device.
In one possible implementation manner, acquiring initial transmission configurations of channel sounding reference signals SRS of a plurality of terminal devices includes:
And acquiring first cooperation information sent by one or more network devices, wherein each first cooperation information comprises initial sending configuration of one or more terminal devices, and the one or more network devices comprise the first network device.
At this time, the communication apparatus acquires the initial transmission configuration through one or more network devices, and updates the transmission configuration of each terminal device through one or more network devices. The network device may report the locally known initial transmission information of the terminal device of the self-service and the acquired initial transmission information of the terminal device of the cooperative service to the communication device.
In one possible implementation manner, the sending the first sending configuration to the terminal device specifically includes: and sending first indication information to the terminal equipment, wherein the first indication information indicates the first sending configuration. The communication device may be a network device that provides a service to the terminal device, for example, TRP, and may directly adjust the SRS transmission configuration of the terminal device through the first indication information.
In one possible implementation, the first indication information is a medium access control element MAC CE signaling, where the MAC CE signaling includes a new power indication field and a new transmission period indication field, the power indication field indicates a first transmission power, and the transmission period indication field indicates a first transmission period and a first slot offset.
In one possible implementation, the first indication information is downlink control information DCI, where the DCI includes a power indication field and a newly added transmission period indication field, where the power indication field indicates a first transmission power, and the transmission period indication field indicates a first transmission period and a first slot offset.
In one possible implementation manner, determining a first transmission period, a first slot offset, and a first transmission power of the SRS of each terminal device according to the plurality of initial transmission configurations includes: determining a minimum sending period in a plurality of initial sending periods and a first terminal equipment set corresponding to the minimum sending period; configuring a first transmission period of other terminal devices except for the first terminal device set to be an integer multiple of a minimum transmission period; and configuring the first time slot offset of each terminal device to be an integral multiple of a minimum transmission period, and determining the first transmission power according to the first transmission period and the first time slot offset.
In one possible implementation, configuring the first transmission period of the other terminal devices except the first terminal device set to be an integer multiple of the minimum transmission period includes: for any one terminal device except the first terminal device set, the following configuration mode is adopted: when the initial transmission period of the SRS of the terminal equipment is an integral multiple of the minimum transmission period, configuring the first transmission period of the terminal equipment as the initial transmission period of the terminal equipment; when the initial transmission period of SRS of the terminal equipment is not an integer multiple of the minimum transmission period and the channel of the terminal equipment is a fast fading channel, configuring the first transmission period of the terminal equipment to be an integer multiple of the minimum transmission period and enabling the first transmission period to be smaller than the initial transmission period; when the initial transmission period of the SRS of the terminal device is not an integer multiple of the minimum transmission period and the channel of the terminal device is not a fast fading channel, the first transmission period of the terminal device is configured to be an integer multiple of the minimum transmission period and is made larger than the initial transmission period.
In this implementation manner, when the first transmission period is configured, the values of the first transmission period and the initial transmission period are closest to each other while following the above configuration manner, so as to reduce the interference fluctuation amplitude caused by adjusting the transmission period of the SRS.
In one possible implementation manner, the number of the plurality of terminal devices is N, N is a positive integer, the minimum transmission period is T 0, and the configuring the first slot offset of each terminal device to be an integer multiple of the minimum transmission period includes: dividing N first transmission periods into M groups in sequence from big to small, wherein the number of SRS transmission periods included in the previous M-1 groups is all; The first slot offset of the i-th group first transmission period is configured as T 0 (i-1), where i=1, 2, …, M.
In the implementation manner, each terminal device can transmit SRS in groups, the quantity change fluctuation of the interrupt devices for transmitting the SRS in parallel is small in different minimum transmission periods, and the interference fluctuation range is reduced, so that the purposes of stable interference fluctuation and power indication overhead reduction are achieved.
In a third aspect, the present application provides a communication method applied to a first network device, the method comprising: receiving uplink control information UCI sent by one or more terminal devices, wherein UCI indicates initial sending configuration of a channel sounding reference signal SRS of the terminal devices, and the initial sending configuration at least comprises an initial sending period and an initial time slot offset of the SRS; transmitting first collaboration information, wherein the first collaboration information comprises initial transmission configuration; and receiving the first configuration information, and sending first indication information to at least one terminal device in the one or more terminal devices according to the first configuration information, wherein the first configuration information comprises first sending configuration, the first indication information indicates the first sending configuration, and the first sending configuration comprises a first sending period and a first time slot offset of SRS.
In a fourth aspect, the present application provides a terminal device comprising a processor and a memory. The processor is coupled with the memory; the memory is used to store computer programs and/or instructions. The processor is configured to execute the computer program and/or instructions stored in the memory to implement the communication method according to the first aspect and any one of the possible implementation manners of the first aspect.
In a fifth aspect, the present application provides a communication device comprising a processor and a memory. The processor is coupled with the memory; the memory is used for storing instructions; the processor is configured to execute a computer program or instructions stored in the memory to implement the communication method described above in the second aspect and any possible implementation manner of the second aspect.
In a sixth aspect, an embodiment of the present application further provides a computer storage medium, where the computer program is executed to implement a communication method according to any one of the first aspect and the possible implementation manner of the first aspect, or implement a communication method according to any one of the second aspect and the possible implementation manner of the second aspect.
Drawings
Fig. 1 is a schematic diagram of a single-station non-cooperative scenario provided in an embodiment of the present application;
fig. 2 is a schematic diagram of a multi-station collaboration scenario provided in an embodiment of the present application;
FIG. 3 is a flow chart of a communication method according to an embodiment of the present application;
FIG. 4 is a flow chart of another communication method according to an embodiment of the present application;
fig. 5 is a schematic diagram of a change in the number of SRS transmitted by a plurality of terminal devices according to an embodiment of the present application;
fig. 6 is a second schematic diagram of a number change of SRS transmitted by a plurality of terminal devices according to the embodiment of the present application;
FIG. 7 is a flow chart of yet another communication method according to an embodiment of the present application;
Fig. 8 is a schematic diagram of a terminal device according to an embodiment of the present application;
fig. 9 is a schematic diagram of a communication device according to an embodiment of the present application;
fig. 10 is a schematic diagram of a communication system according to an embodiment of the present application.
Detailed Description
The plurality of the embodiments of the present application is greater than or equal to two. It should be noted that, in the description of the embodiments of the present application, the terms "first," "second," and the like are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance, or alternatively, for indicating or implying a sequential order.
In embodiments of the application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
The embodiment of the application is applied to a communication system, which can be a second generation (2G) communication system and a third generation (3G) communication system, can be an LTE system, can be a fifth generation (5G) communication system, can be a mixed structure of LTE and 5G, can be a 5G new wireless (5G New Radio,5G NR) system, and can be a new communication system in future communication development.
In order to make the technical personnel in the technical field more clearly understand the scheme of the application, the application scenario of the technical scheme of the application is first described below.
In the current communication system, a User Equipment (UE) transmits a Sounding REFERENCE SIGNAL (SRS) to a transceiver point (transmission receiving point/transmission reception point, TRP) so that the TRP can estimate a complex channel response of an uplink channel, and then can determine an estimation result of the complex channel response of a downlink channel by using a channel reciprocity relationship. The estimated channel response may be used to determine a communication beam at the TRP to use to transmit downlink transmissions to the UE or to receive uplink transmissions from the UE.
Referring to fig. 1, the diagram is a schematic diagram of a single-station non-cooperative scenario provided in an embodiment of the present application.
In a single station non-cooperative scenario, one TRP serves one terminal device. The terminal device may be referred to as a UE.
TRP1 in fig. 1 is a service TRP of UE1, and TRP2 is a service TRP of UE 2.
The UE may send a channel Sounding REFERENCE SIGNAL (SRS) to the TRP, which estimates the uplink channel frequency domain information based on the received SRS, performs frequency selective scheduling, and estimates the downlink channel for downlink beam forming. In the scenario of fig. 1, UE1 transmits SRS1 to TRP1 and UE2 transmits SRS2 to TRP 2. Since the antennas on UE1 and UE2 are typically omni-directional antennas, TRP2 also receives SRS1 and TRP1 also receives SRS2. However, in the single station scenario, since UE1 is closer to TRP1, the signal strength of SRS1 is higher, so that TRP1 is not interfered by SRS2, and similarly TRP2 is not interfered by SRS 1.
Referring to fig. 2, the diagram is a schematic diagram of a multi-station collaboration scenario provided in an embodiment of the present application.
According to the latest 5G mobile communication system definition, the 5G mobile communication system includes a long term evolution (Long Term Evolution, LTE) evolution system and a New Radio (NR) system. The NR system defines standards for wireless transmission between terminals and TRPs, including that the transmitted signals need to operate in high frequency bands, such as over 6 GHz, even up to 40GHz and 100 GHz; the NR system also defines the concept of a cell, namely, a cell can contain a plurality of TRPs, and the respective TRPs can correspondingly communicate through a specified interface so as to achieve the aim of mutual cooperation. As shown in fig. 1, a coverage area of one evolved base station includes a plurality of cells, and a coverage area of each cell includes a plurality of TRPs. However, the wavelength of the high-frequency signal is shorter, the attenuation is faster in the transmission process, the path loss is larger, the penetration of the high-frequency signal to the object is poorer, and the high-frequency signal is easily blocked by an obstacle in the transmission process, so that the wireless environment under the NR system is poorer, and the link stability of the NR system is easily influenced greatly. In order to overcome the above drawbacks, not only is the influence of path loss of high-frequency signals required to be resisted by a high-frequency beam forming technology between the terminal equipment and the TRP, and the coverage characteristic of the link is improved, but also the terminal equipment needs to perform beam cooperation with the TRP so as to perform high-frequency connection with a plurality of TRPs at the same time, thereby achieving the purpose of quickly establishing a communication link for reliable communication.
In some cases, the UE may transmit uplink transmissions to one or more TRPs using multiple antenna ports and receive downlink transmissions from the one or more TRPs. Each antenna port may correspond to a spatial dimension along which wireless communications may be transmitted and received. The spatial dimension corresponding to the antenna ports of the UE may define the available signal space of the UE. In some cases, the downlink transmission from the first TRP to the UE may occupy a subset of the spatial dimensions of the available signal space, and this subset may be referred to as the received signal space. The UE may transmit an SRS to the second TRP to indicate a received signal space for reducing interference caused to downlink transmissions from the first TRP to the UE.
In an example, UE1 may transmit SRS1 to a serving TRP (i.e., TRP 1), and SRS1 may be referred to as a primary SRS (pSRS). UE1 may transmit pSRS with at most each antenna port of UE1, where each antenna port may correspond to a different spatial dimension (e.g., X-spatial dimension, Y-spatial dimension, and Z-spatial dimension) within the available signal space in which UE1 may receive transmissions from one or more TRPs. The serving TRP may receive pSRS on one or more antenna ports. Based on the energy detected at one or more of the antenna ports of the serving TRP, the serving TRP may determine a spatial dimension within the available signal space of the UE 1. The serving TRP may determine to precode and beamform the downlink transmission based on the determined spatial dimensions. The serving TRP may for example precode symbols of a downlink transmission to be transmitted via a subset of its available antenna ports, and one or more spatial parameters may be set to beamform the downlink transmission in the direction of UE1 such that the downlink transmission occupies at least part of the available signal space of the UE.
The serving TRP may then transmit downlink transmissions to UE1 based on precoding and beamforming, and UE1 may receive the downlink transmissions within the available signal space of UE 1. UE1 may determine a received signal space in which UE1 receives the downlink signal based on the energy detected at the respective antenna ports of UE 1. The received signal space may correspond to antenna ports defining a spatial dimension along which downlink transmissions from the serving TRP may be received, and may be a subset of the available signal space defined by the antenna ports of UE 1. Then, UE1 may transmit SRS2 to the neighboring cooperative TRP (i.e., TRP 2), and SRS2 may be referred to as secondary SRS (SRS). UE1 may transmit sSRS on one or more antenna ports corresponding to the received signal space such that sSRS indicates (e.g., transmits) the received signal space to neighboring TRPs.
The neighboring TRP may then precode and beamform downlink transmissions to other UEs, e.g., UE2, such that the downlink transmissions to UE2 are not transmitted along the received signal space of UE1 nor significantly interfere with the received signal space of UE1, a process that may aid in interference management.
In one possible implementation, the cooperative TRP is the same configuration (transceiver mode, frequency point, bandwidth, slot configuration, etc.) as the service TPR, and the cooperative TRP is the one with the strongest reference signal received Power (REFERENCE SIGNAL RECEIVING Power, RSRP) other than the service TRP, and the signal strength difference between the service TPR and the cooperative TRP satisfies a certain threshold. The service TPR, which may be referred to as TRP providing a service for the terminal device; the cooperative TRP may be referred to as a TRP providing a cooperative service for the terminal device.
However, as the number of UEs increases greatly, the interference of SRS increases. At this time, if TRP2 is used as the service TRP of UE2, because TRP1 does not know the transmission period of SRS2 of UE2 and TRP2 does not know the transmission period of SRS1 of UE1, the downlink channel estimation of TRP2 to UE2 is affected by SRS1 transmitted by UE1, and thus the downlink channel estimation of TRP2 to UE2 is inaccurate. In order to overcome the problem, the prior measures are that before the UE performs SRS transmission each time under the multi-station cooperative scene, TRP needs to acquire the UE interference information of the whole station in real time, the transmission power of a pilot signal is calculated and indicated to the UE, and the interaction quantity, the calculation complexity and the indication cost are obviously increased.
In order to solve the above problems, the present application provides a communication method, a network device, a communication apparatus, and a storage medium. The method can acquire the initial transmission configuration of each terminal device, and update the first transmission configuration of the SRS to the corresponding terminal device after uniform updating configuration is carried out. That is, only one configuration update is needed to be sent, and then the terminal device can directly send the SRS each time, each network device no longer needs to acquire the SRS sending configuration information of the terminal device of the total station in real time, and no longer needs to repeatedly calculate the pilot sending power and indicate the pilot sending power to the terminal device, so that the information interaction amount, the calculation complexity and the pilot power indication overhead are obviously reduced.
The technical scheme of the application is specifically described below with reference to the accompanying drawings.
The communication device, the network device, in the following embodiments of the present application may in some cases also be referred to as a network element, typically be a base station (comprising a functional unit of a base station, or a combination of functional units of a base station) or a core network element. The core network element may be a functional element in the core network including, but not limited to, an access and mobility management function (ACCESS AND Mobility Management Function, AMF) element or a session management function (Session Management Function, SMF) element. A base station may be any device having wireless transceiver capabilities including, but not limited to: an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in long term evolution (long term evolution, LTE), a base station (gNodeB or gNB) or transceiver point (transmission receiving point/transmission reception point, TRP) in New Radio (NR), a base station for 3GPP subsequent evolution, an access node in Wi-Fi system, a wireless relay node, a wireless backhaul node, etc. The base station may be: macro base station, micro base station, pico base station, small station, relay station, balloon station, or the like. A base station may include one or more co-sited or non-co-sited transmission points (Transmission Reception Point, TRP). The base station may also be a radio controller, a centralized unit (centralized unit, CU), and/or a Distributed Unit (DU) in the cloud radio access network (cloud radio access network, CRAN) scenario. The base station may communicate with the terminal device or may communicate with the terminal device through the relay station. The terminal device may communicate with a plurality of base stations of different technologies, for example, the terminal device may communicate with a base station supporting an LTE network, may communicate with a base station supporting a 5G network, and may perform dual connectivity with the base station supporting the LTE network and the base station supporting the 5G network.
In the embodiments provided in the present application, the terminal device may be in various forms, such as a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a vehicle-mounted terminal device, a wireless terminal device in Self-driving (Self-driving), a wireless terminal device in remote medical (remote medical), a wireless terminal device in smart grid (SMART GRID), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (SMART CITY), a wireless terminal device in smart home (smart home), a wearable terminal device, and the like. A terminal device may also sometimes be referred to as a user equipment, access terminal device, vehicle terminal device, industrial control terminal device, UE unit, UE station, mobile station, remote terminal device, mobile device, UE terminal device, wireless communication device, UE agent, UE apparatus, or the like. The terminal device may also be a fixed terminal device or a mobile terminal device.
The embodiment of the application provides a communication method, which is specifically described below with reference to the accompanying drawings.
Referring to fig. 3, a flowchart of a communication method according to an embodiment of the present application is shown.
The method comprises the following steps:
s11: the terminal device transmits uplink control information.
The scene of the embodiment of the application can comprise A terminal devices and B communication devices. Wherein A and B are positive integers, and the embodiment of the application does not limit A and B specifically. In the description of the embodiment of the present application, only the terminal device a of the a terminal devices and the communication device B of the B communication devices are used as examples, and for other terminal devices and communication devices, the steps of the method performed are similar, and are not described herein again.
The terminal device a transmits uplink control information (uplink control link, UCI) to report the initial transmission configuration of its own SRS. The initial transmission configuration at least includes an initial transmission period, an initial slot offset, and an initial transmission power of the SRS.
The communication apparatus b may acquire an initial transmission configuration transmitted by one or more terminal devices. In one possible implementation, the communication apparatus b may acquire an initial transmission configuration transmitted by a terminal devices. In another possible implementation, communication apparatus b may obtain an initial transmission configuration of x terminal devices transmissions, where x is smaller than a. The initial transmission configuration of the a-x terminal devices may additionally be transmitted to other communication device(s).
S12: the communication device determines a first transmission period, a first slot offset and a first transmission power of the SRS of each terminal device according to the plurality of initial transmission configurations.
The embodiment of the present application will be described taking, as an example, an initial transmission configuration in which the communication apparatus b acquires transmission from a plurality of terminal devices.
The communication apparatus b reconfigures one or more of the transmission period, slot offset, and transmission power of the SRS for one or more of the terminal devices according to the plurality of initial transmission configurations.
In a possible implementation manner, the communication device b may perform overall grouping according to the obtained initial transmission configurations of all the terminal devices, and redetermine the transmission configurations of the plurality of terminal devices, so that the SRS interference presents a periodic variation rule, and the interference fluctuation range is reduced, so as to achieve the purposes of stable interference fluctuation and reduced power indication overhead. For example, by reconfiguring the transmission period and/or slot offset of the SRS, the number of terminal devices that transmit the SRS in parallel in the same time period can be always maintained between the first number and the second number, so that the interference fluctuation is stable, and no severe jitter variation occurs.
For a terminal device, the communication apparatus b may reconfigure only the transmission period of the SRS of the terminal device, or reconfigure only the slot offset of the SRS of the terminal device, or reconfigure both the transmission period of the SRS of the terminal device and the slot offset of the SRS, or maintain the transmission period of the SRS of the terminal device and the slot offset of the SRS unchanged.
It can be appreciated that when at least one of the transmission period and the slot offset is changed, the transmission power of the SRS configured for the terminal device is generally changed. When the SRS transmission period and the SRS slot offset of the terminal device are maintained unchanged, the SRS transmission power configured for the terminal device may be the same as or different from the initial transmission power. The reason why the initial transmission power is different is that after the communication device b performs overall configuration on the transmission configuration of each terminal device, the transmission configuration configured for other terminal devices is changed, and thus the transmission power configured for the terminal device needs to be adaptively changed.
S13: the communication device generates a first transmission configuration of the terminal device when the first transmission period is different from the initial transmission period, or the first slot offset is different from the initial slot offset, or the first transmission power is different from the initial transmission power.
The communication device generates a first transmission configuration of the terminal device when at least one of three sets of data, namely a first transmission period and an initial transmission period, a first time slot offset and an initial time slot offset, and a first transmission power and an initial transmission power, is different.
The first transmission period configured by the communication device b for the terminal device is different from the initial transmission period of the terminal device, the first transmission power is different from the initial transmission power, and the first time slot offset is simultaneously shifted from the initial time slot, so as to generate the first transmission configuration of the terminal device, where the first transmission configuration may include only the first transmission period and the first transmission power, or may include the first transmission period, the first time slot offset and the first transmission power at the same time.
For example, the first transmission period configured for the terminal equipment a is different from the initial transmission period of the terminal equipment a, the first transmission power configured for the terminal equipment a is different from the initial transmission power of the terminal equipment a, and when the first slot offset configured for the terminal equipment a is different from the initial slot offset of the terminal equipment a, the first transmission configuration sent to the terminal equipment a may only include the first transmission period and the first transmission power, or may also include the first transmission period, the first slot offset and the first transmission power at the same time, and the first slot offset at this time is equal to the initial slot offset.
The first transmission period configured by the communication device b for the terminal device is the same as the initial transmission period of the terminal device, and when the first time slot offset configured for the terminal device a is different from the initial time slot offset and the first transmission power is different from the initial transmission power, the first transmission configuration of the terminal device is generated, and the first transmission configuration may only include the first time slot offset and the first transmission power, or may also include the first transmission period, the first time slot offset and the first transmission power at the same time.
For example, when the first transmission period configured for the terminal equipment a is the same as the initial transmission period of the terminal equipment a, the first slot offset configured for the terminal equipment a is different from the initial slot offset of the terminal equipment a, and the first transmission power configured for the terminal equipment a is different from the initial transmission power of the terminal equipment a, the first transmission configuration transmitted to the terminal equipment a may include only the first slot offset and the first transmission power, or may include the first transmission period, the first slot offset and the first transmission power at the same time, and the first transmission period at this time is equal to the initial transmission period.
The communication device b generates a first transmission configuration of the terminal device when a first transmission period configured for the terminal device is different from an initial transmission period of the terminal device, a first transmission power is different from the initial transmission power, and a first time slot offset is also different from the initial time slot offset, wherein the first transmission configuration simultaneously comprises the first transmission period, the first time slot offset and the first transmission power.
For example, when the first transmission period configured for the terminal equipment a is different from the initial transmission period of the terminal equipment a, the first transmission power configured for the terminal equipment a is different from the initial transmission power of the terminal equipment a, and the first slot offset configured for the terminal equipment a is also different from the initial slot offset of the terminal equipment a, the first transmission configuration transmitted to the terminal equipment a includes the first transmission period, the first slot offset and the first transmission power at the same time.
The first transmission period configured by the communication device b for the terminal device is the same as the initial transmission period of the terminal device, when the first time slot offset is the same as the initial time slot offset and the first transmission power is the same as the initial transmission power, the first transmission configuration may not be generated and not transmitted, so that the terminal device maintains the initial transmission configuration, or the first transmission configuration of the terminal device may be generated and transmitted, but the first transmission period included in the first transmission configuration is consistent with the initial transmission period, the first time slot offset included in the first transmission configuration is consistent with the initial time slot offset, and the first transmission power included in the first transmission configuration is consistent with the initial transmission power.
The communication device b may generate and send a first transmission configuration of the terminal device when a first transmission period configured for the terminal device is the same as an initial transmission period of the terminal device, a first slot offset is the same as the initial slot offset, and a first transmission power is different from the initial transmission power, where the first transmission period included in the first transmission configuration is consistent with the initial transmission period, and the first slot offset included in the first transmission configuration is consistent with the initial slot offset, and further includes the first transmission power. Or generating a first transmission configuration including only the first transmission power.
S14: the communication device transmits the first transmission configuration to the terminal apparatus.
And after the first transmission configuration of the terminal equipment is generated, the first transmission configuration is transmitted to the corresponding terminal equipment, wherein the first transmission configuration comprises a first transmission period, a first time slot offset and a first transmission power. For example, the first transmission configuration of the communication apparatus b to the terminal device a includes a first transmission period, a first slot offset, and a first transmission power configured for the terminal device a.
S15: and the terminal equipment updates the sending configuration of the SRS according to the first sending configuration.
After receiving the first transmission configuration, the terminal device can analyze and obtain information such as the first transmission period, the first time slot offset, the first transmission power and the like carried in the first transmission configuration, thereby updating the transmission configuration of the SRS.
In summary, by using the technical solution provided by the embodiments of the present application, the communication device may acquire initial transmission configurations of SRS of one or more terminal devices and perform unified update configurations, and then send the first transmission configurations to the corresponding terminal devices so that the corresponding terminal devices update the transmission configurations of SRS. That is, only one transmission configuration update is needed, and after that, the terminal device can directly transmit each time of SRS transmission, each communication device no longer needs to acquire the SRS transmission configuration information of the terminal device of the total station in real time, and no longer needs to repeatedly calculate pilot transmission power and indicate the pilot transmission power to the terminal device, thereby remarkably reducing information interaction amount, calculation complexity and pilot power indication overhead.
The following description is made in connection with specific implementations.
First, an implementation of transmitting a configuration update by a centralized processing device will be described.
Referring to fig. 4, a flowchart of another communication method according to an embodiment of the present application is shown.
In this implementation manner, the centralized processing device obtains initial transmission configurations of the plurality of terminal devices through the plurality of network devices, and after the centralized processing device completes updating the transmission configurations, the transmission configurations of the terminal devices are updated through the network devices, and the centralized processing device may be a baseband Unit (BBU) or other communication devices with centralized processing capability. In one possible implementation, a central processing device includes a central processor (central processing unit, CPU) thereon for implementing a centralized processing capability, the method comprising the steps of:
s21: the terminal device transmits UCI.
The terminal device sends UCI to the network device that provides the collaboration service for itself, e.g., network device c provides collaboration service for terminal device a, and terminal device a sends UCI to network device c. Taking the network device as a TRP as an example, the terminal device sends UCI to the cooperative TRP of the terminal device. The terminal device may not need to send UCI to its own service TRP, since the service TRP is generally aware of the initial transmission configuration of the served terminal device.
The UCI indicates the initial transmission configuration of the current SRS of the terminal device, and the initial transmission configuration includes at least an initial transmission period, an initial slot offset, and initial transmission power of the SRS.
S22: the network device sends the first collaboration information to the centralized processing device.
In the embodiment of the application, the centralized processing equipment performs unified updating of the transmission configuration, so that each network equipment carries the acquired initial transmission configuration in the first cooperation information and transmits the initial transmission configuration to the centralized processing equipment.
It can be understood that the first collaboration information sent by different network devices to the centralized processing device may carry initial sending configurations of different numbers of terminal devices. For example, the first collaboration information sent by the network device C in the C network devices to the centralized processing device may carry an initial sending configuration of one terminal device, and the first collaboration information sent by the network device d in the C network devices to the centralized processing device carries an initial sending configuration of 2 terminal devices.
The first collaboration information may include an initial transmission configuration of a terminal device served by the network device, where the initial transmission configuration is obtained from UCI sent by a corresponding terminal device; the first collaboration information also includes an initial transmission configuration of a service terminal device of the network device.
S23: the centralized processing device determines a minimum transmission period in a plurality of initial transmission periods and a first terminal device set corresponding to the minimum transmission period.
In the scheme of the embodiment of the application, the centralized processing equipment can carry out overall grouping on the initial transmission configuration of all the terminal equipment, and redetermine the transmission configuration of a plurality of terminal equipment, so that the interference of SRS presents a periodic change rule, and the interference fluctuation amplitude is reduced, so that the interference fluctuation is stable, and the power indication overhead is reduced.
The centralized processing device reconfigures the transmission period, the slot offset and the transmission power of the SRS for one or more of the terminal devices according to the plurality of initial transmission configurations.
The initial transmission period of the SRS resource may be configured to be 1,2,4,5,8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 640, 1280, 2560 slots, and the embodiment of the present application is not limited to the initial transmission period of each terminal device. The time slot length varies with the subcarrier spacing, and generally decreases as the subcarrier spacing increases. For convenience of explanation, in the following description of the embodiments, a subcarrier interval of 15kHz is taken as an example, and the corresponding slot length is 1ms. The principle is similar when the length corresponding to a single slot is the other length, and will not be described here again.
In the following, an example is described in which the centralized processing device acquires initial transmission periods of 8 terminal devices, where the initial transmission periods of 8 terminal devices are reported to the centralized processing device by a plurality of network devices, and the initial transmission periods of each terminal device are specifically as follows:
UE1-10ms；UE2-10ms；UE3-20ms；UE4-20ms；UE5-40ms；
UE6-40ms；UE7-32ms；UE8-16ms。
The centralized processing device first determines a minimum transmission period in each initial transmission period and a first terminal device set corresponding to the minimum transmission period. At this time, the minimum transmission period is 10ms, and the corresponding first terminal equipment set includes UE1 and UE2.
The first terminal device set may include one terminal device or a plurality of terminal devices, which is not specifically limited in the embodiment of the present application.
S24: the centralized processing device configures a first transmission period of other terminal devices except the first terminal device set to be an integer multiple of a minimum transmission period.
The first transmission period of the other terminal device is configured as an integer multiple of the minimum transmission period, i.e. the minimum transmission period is made the greatest common divisor of the first transmission periods of all terminal devices.
At this time, the other terminal devices are UE3-UE8. For UE1 and UE2, the transmission period thereof may be maintained unchanged, i.e., the first transmission period of UE1 and UE2 is configured as an initial transmission period.
In the initial transmission periods of other terminal apparatuses, only the initial transmission periods of UE7 and UE8 are present and are not an integer multiple of the minimum transmission period, so in the above example, only the initial transmission periods of UE7 and UE8 need to be adjusted, for example, the first transmission period of UE7 may be configured to be 30ms and the first transmission period of UE8 may be configured to be 20ms. While the transmission period of UE3-UE6 may not be changed.
In practical applications, when configuring the first transmission period of the terminal device, the transmission period may be increased or decreased, and the configuration manner of the first transmission period is specifically described below.
In one possible implementation, when the initial transmission period of the SRS of the terminal device is not an integer multiple of the minimum transmission period, the time length of the first transmission period of the terminal device may be configured to be nearest to the initial transmission period and be an integer multiple of the minimum transmission period. For example, for UE7-32ms, when the first transmission period of UE7 is configured, it is closest to 32ms, and the time length that is an integer multiple of the minimum transmission period of 10ms is 30ms, so the first transmission period of UE7 is configured to be 30ms; for another example, for UEs 8 to 16ms, when the first transmission period of UE8 is configured, the first transmission period of UE8 is configured to be 20ms because the first transmission period is closest to 16ms and the time length that is an integer multiple of the minimum transmission period of 10ms is 20ms.
The implementation method can avoid larger difference between the first transmission period and the initial transmission period while configuring the first transmission period of the terminal equipment, thereby reducing the interference fluctuation amplitude caused by adjusting the transmission period of the SRS.
In another possible implementation, the adjustment is performed in consideration of the time-varying characteristics of the channel of the terminal device when configuring the first transmission period of the terminal device, which is described in detail below.
In this implementation, when the channel of the terminal device is a fast fading channel, the configured first transmission period is made smaller than the initial transmission period. Fast and slow fading are determined by the size of the coherence time and the time of transmission of one symbol. The coherence time of a channel is the maximum time difference range over which the channel remains constant.
Fast fading is a fast change in channel fading due to movement of the terminal device. Fast fading also has an equivalent doppler interpretation: the coherence time of the channel < the time of transmission of one symbol, i.e. the attenuation characteristic of the channel will change several times during the propagation of one symbol, resulting in distortion of the baseband pulse waveform, when the channel is a fast fading channel.
When the implementation mode is adopted, the centralized processing device configures the first transmission period of the terminal device as the initial transmission period of the terminal device when the initial transmission period of the SRS of the terminal device is an integer multiple of the minimum transmission period.
When the initial transmission period of the SRS of the terminal equipment is not an integral multiple of the minimum transmission period and the channel of the terminal equipment is a fast fading channel, the centralized processing equipment configures the first transmission period of the terminal equipment to be an integral multiple of the minimum transmission period and enables the first transmission period to be smaller than the initial transmission period. In a preferred implementation manner, the time length of the first transmission period of the terminal device is configured to be smaller than the initial transmission period, is closest to the initial transmission period and is an integer multiple of the minimum transmission period, so that a large difference between the first transmission period and the initial transmission period is avoided as much as possible, and interference fluctuation amplitude caused by adjusting the transmission period of the SRS is reduced. For example, for UE7-32ms, when the first transmission period of UE7 is configured, the channel of UE7 is found to be a fast fading channel, and at this time, the first transmission period of UE7 is configured to be 30ms, so that the first transmission period is smaller than the initial transmission period.
The centralized processing device configures a first transmission period of the terminal device to be an integer multiple of a minimum transmission period and makes the first transmission period larger than the initial transmission period when the initial transmission period of the SRS of the terminal device is not an integer multiple of the minimum transmission period and the channel of the terminal device is not a fast fading channel. In a preferred implementation manner, the time length of the first transmission period of the terminal device is configured to be greater than the initial transmission period, is closest to the initial transmission period and is an integer multiple of the minimum transmission period, so that a large difference between the first transmission period and the initial transmission period is avoided as much as possible, and interference fluctuation amplitude caused by adjusting the transmission period of the SRS is reduced. For example, for UE8-16ms, when the first transmission period of UE8 is configured, the channel of UE8 is found not to be a fast fading channel, and at this time, the first transmission period of UE8 is configured to be 20ms, so that the first transmission period is greater than the initial transmission period.
S25: the centralized processing device configures the first slot offset of each terminal device as an integer multiple of the minimum transmission period.
Before the first slot offset is configured for each terminal device, the initial slot offset of each terminal device may be the same or different, and the embodiment of the present application is not specifically limited.
The purpose of configuring the first slot offset for each terminal device is to implement grouping for each terminal device, so that the sending timing of sending SRS by each terminal device is different. By grouping, the number of terminal devices that simultaneously transmit SRS in the same time period can be made not much larger and not much smaller than the number of terminal devices that simultaneously transmit SRS in the next time period.
When the first slot offset is configured, the total number of terminal devices is determined to be N, wherein N is a positive integer. Then dividing N first transmission periods into M groups in sequence from big to small, wherein the number of SRS transmission periods included in the previous M-1 groups isThe first slot offset of the i-th group first transmission period is configured as T 0 (i-1). Where i=1, 2, …, M, the minimum transmission period is T 0.
N is divided by M and is taken down by an integer. For example, where N is 8, m is 2,Is an integer of 4; for another example, where N is 8, M is 3,2.
The specific value of M is not limited in the embodiment of the present application, and in practical application may be determined according to the number of terminal devices served by the network device, and in a possible implementation manner, the greater the number of terminal devices served by the network device, the greater the value of M may be.
For convenience of explanation, the following embodiments will be described by taking N as 8 and m as 2 as an example, that is, the first transmission periods of UEs 1 to 8 in the above examples are divided into two groups. Configured to 30ms with the first transmission period of UE 7; the first transmission period of the UE8 is configured to be, for example, 20 ms.
The first transmission periods of UE1-UE8 are ordered in order of from big to small as follows:
UE5-40ms；UE6-40ms；UE7-30ms；UE3-20ms；UE4-20ms；UE8-20ms；UE1-10ms；UE2-10ms。
It will be appreciated that for UE8, since the first transmission period of UE8 is the same as that of UE3 and UE4, UE8 may be ordered before or after UE3 and UE 4. The embodiment of the application can sort according to the size of the initial sending period when the same first sending period appears, and sort according to the time of obtaining the initial sending period when the size of the initial sending period is still the same.
When M is 2, dividing 8 UEs into 2 groups according to the sequence from the big to the small of the first sending period; wherein the first group includes terminal devices { UE5, UE6, UE7, UE3}, and the second group includes interrupt devices { UE4, UE8, UE1, UE2}. The minimum transmission period T 0 is 10ms, at which time the first slot offset of the first group is configured to be 0 and the first slot offset of the second group is configured to be 10ms.
Referring to fig. 5, a diagram of a change in the number of SRS transmissions by a plurality of terminal devices according to an embodiment of the present application is shown.
After configuring the first transmission period and the first slot offset for each terminal device in the above manner of S24 to S25, the fluctuation change of the number of terminal devices transmitting SRS at different times is shown in fig. 5.
After the scheme of the application is adopted, the number of the terminal devices transmitting the SRS in each minimum transmission period is averaged to be about 4.14 in 7 minimum transmission periods, and the variance of the number of the terminal devices transmitting the SRS in the 7 minimum transmission periods is about 2.86. The variance is smaller, so the scheme of the application ensures that the quantity fluctuation of terminal equipment which simultaneously transmits SRS is small, and reduces the interference fluctuation amplitude, thereby achieving the purposes of stable interference fluctuation and reduced power indication overhead.
Referring to fig. 6, a second schematic diagram of a number change of SRS transmission by a plurality of terminal devices according to an embodiment of the present application is shown.
Assuming that the initial slot offset indicated by the initial transmission configuration of each terminal device is zero, when each terminal device transmits SRS according to the initial transmission configuration, the fluctuation of the number of terminal devices transmitting SRS at different times is as shown in fig. 6.
When the scheme of the application is not adopted, the average number of the terminal devices transmitting the SRS in each minimum transmission period is about 4.86 in 7 minimum transmission periods, and the variance of the number of the terminal devices transmitting the SRS in the 7 minimum transmission periods is about 28.86, which is more than 10 times of the variance after the scheme of the application is adopted.
By adopting the scheme of the application, interference fluctuation can be obviously reduced, and further power indication overhead is reduced.
S26: the centralized processing device determines a first transmission power according to the first transmission period and the first time slot offset.
After completing the configuration of the first transmission period and the first time slot offset of each terminal device, the centralized processing device determines the first transmission power of the terminal device according to the first transmission period and the first time slot offset of each terminal device.
The first transmit power is generally different from the initial transmit power when at least one of the first transmit period and the first slot offset of the terminal device changes as compared to the initial transmit configuration. When the SRS transmission period and the SRS slot offset of the terminal device are maintained unchanged, the first transmission power of the SRS configured for the terminal device may be the same as or different from the initial transmission power.
The first transmission power may be related to one or more conditions of a first transmission period, a number of devices transmitting SRS in the same minimum transmission period, as will be illustrated below.
For example, with continued reference to fig. 5 and 6, for UE3, the first transmission period and the initial transmission period are both 20ms, and the first slot offset and the initial slot offset are both 0. In one possible implementation, since both the transmission period and the slot offset of the UE3 are unchanged, the centralized processing device may configure the first transmission power of the UE3 to remain unchanged as well, i.e. equal to the initial transmission power. In another possible implementation manner, after the centralized processing device is configured in an overall manner, in the same minimum transmission period in fig. 5, the average value of the number of devices that transmit SRS simultaneously with the UE3 decreases, so that the first transmission power of the UE3 can be reduced, that is, the configured first transmission power is smaller than the initial transmission power.
For another example, since not only the first transmission period is changed but also the average value of the number of devices transmitting SRS simultaneously in the same minimum transmission period is reduced for both UE7 and UE8, the first transmission power can be adjusted in common according to both conditions.
S27: the centralized processing device generates a first transmission configuration of the terminal device when the first transmission period is different from the initial transmission period, or the first slot offset is different from the initial slot offset, or the first transmission power is different from the initial transmission power.
The centralized processing device generates a first transmission configuration of a certain terminal device when any one of a first transmission period, a first slot offset, and a first transmission power of the terminal device is changed compared with a corresponding parameter in the initial transmission configuration.
The first transmission period configured by the centralized processing device for the terminal device is different from the initial transmission period of the terminal device, the first transmission power is different from the initial transmission power of the terminal device, and the first time slot offset and the initial time slot offset are simultaneously generated, so that the first transmission configuration of the terminal device can be only included in the first transmission configuration, and the first transmission configuration can also include the first transmission period, the first time slot offset and the first transmission power. For example, for UE7, the first transmission period 30ms is different from the initial transmission period 32ms, and the first slot offset and the initial slot offset are the same and are both 0, where the first transmission configuration may include only the first transmission period 32ms and the first transmission power, or may include the first transmission period 30ms, the first slot offset 0 and the first transmission power at the same time.
The first sending period configured by the centralized processing device for the terminal device is the same as the initial sending period of the terminal device, the first sending power is different from the initial sending power of the terminal device, and when the first time slot offset is different from the initial time slot offset, the first sending configuration of the terminal device is generated, and the first sending configuration can only comprise the first time slot offset and the first sending power, or can also comprise the first sending period, the first sending power and the first time slot offset. For example, for UE4, the first transmission period is the same as the initial transmission period, and the first slot offset 10ms is different from the initial slot offset 0ms, where the first transmission configuration may include only the first slot offset 10ms and the first transmission power, or may include the first transmission period 20ms, the first slot offset 10ms, and the first transmission power at the same time.
The method comprises the steps that a first transmission period configured by the centralized processing equipment for the terminal equipment is different from an initial transmission period of the terminal equipment, first transmission power is different from the initial transmission power of the terminal equipment, and when a first time slot offset is different from the initial time slot offset, a first transmission configuration of the terminal equipment is generated, wherein the first transmission configuration simultaneously comprises the first transmission period, the first time slot offset and the first transmission power. For example, for UE8, the first transmission period 20ms is different from the initial transmission period 16ms, and the first slot offset 10ms is different from the initial slot offset 0ms, where the first transmission configuration includes the first transmission period 20ms, the first slot offset 10ms, and the first transmission power.
The first transmission period configured by the centralized processing device for the terminal device is the same as the initial transmission period of the terminal device, the first transmission power is different from the initial transmission power of the terminal device, and the first time slot offset is the same as the initial time slot offset, for example, for UE5 and UE6, the first transmission configuration of the terminal device may be generated, where the first transmission period included in the first transmission configuration is consistent with the initial transmission period, the first time slot offset included in the first transmission configuration is consistent with the initial time slot offset, and the first transmission power is also included in the first transmission configuration.
The communication apparatus b may not generate the first transmission configuration when the first transmission period configured for the terminal device is the same as the initial transmission period of the terminal device, the first slot offset is the same as the initial slot offset, and the first transmission power is the same as the initial transmission power, so that the terminal device maintains the initial transmission configuration, or may generate and transmit the first transmission configuration of the terminal device, but the first transmission period included in the first transmission configuration is consistent with the initial transmission period, the first slot offset included in the first transmission configuration is consistent with the initial slot offset, and the first transmission power included in the first transmission configuration is consistent with the initial transmission power.
S28: the centralized processing device sends first configuration information to the network device.
The first configuration information includes a first transmission configuration. The first configuration information may also have an indication function, and instruct the network device to send first indication information to the corresponding terminal device.
After the centralized processing device generates the first transmission configuration of the first terminal device, the centralized processing device transmits the first configuration information to the first network device for providing services for the first terminal device, so that the first network device completes updating the transmission configuration of the first terminal device. It should be noted that the first network device is a serving network device of the terminal device, and is not a cooperative network device, because the serving network device may directly modify the SRS transmission configuration of the served terminal device.
For example, the network device c1 is a serving network device of the terminal device a, and the network device c2 is a cooperative network device of the terminal device a. The initial transmission configuration of the terminal device a is reported to the centralized processing device through the network device c 2. After the centralized processing device generates the first transmission configuration of the terminal device a, the centralized processing device transmits first configuration information carrying the first transmission configuration of the terminal device a to the network device c1, so that the network device c1 transmits first indication information to the served terminal device a.
S29: the network device sends first indication information to the terminal device.
The network device sends first indication information to the served terminal device. For example, for the network device c1, if the serving terminal device is a, the first indication information is sent to the terminal device a.
The first indication information carries a first sending configuration of the corresponding terminal equipment, and the first sending configuration comprises a first sending period of SRS, a first time slot offset and a first sending power.
In one possible implementation, the first indication information is medium access control element (MAC control element, MAC CE) signaling. The MAC CE signaling is one way of exchanging control information between the terminal equipment and the network equipment, and is signaling interacted between the network equipment and the terminal equipment through the MAC layer, so that uplink synchronous adjustment, activation function, deactivation function and the like can be realized. In this implementation manner, the MAC CE signaling includes a new power indication field and a new transmission period indication field, where the power indication field indicates the first transmission power, and the transmission period indication field indicates the first transmission period and the first slot offset.
In another possible implementation, the first indication information is downlink control information (downlink control information, DCI), which may carry a hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ), uplink and downlink resource allocation information, power control information, and so on. In this implementation, the DCI may include a power indication field indicating the first transmission power and a newly added transmission period indication field indicating the first transmission period and the first slot offset.
In a possible implementation manner, a first field may be further added to the first indication information, where the first field is used to identify whether the terminal device needs to update the SRS transmission configuration to the first transmission configuration carried in the first information.
When the first field is in a first state, indicating the terminal equipment to replace the initial transmission configuration by the first transmission configuration; and when the first field is in the second state, indicating the terminal equipment to maintain the initial transmission configuration unchanged. For example, when the first field is 1, the terminal device is instructed to replace the initial transmission configuration with the first transmission configuration, and when the first field is 0, the terminal device is instructed to maintain the initial transmission configuration unchanged.
S30: and the terminal equipment updates the SRS sending configuration of the terminal equipment according to the first indication information.
In one possible implementation manner, the first indication information includes a first field, and when the first field is in a first state, the terminal device replaces the initial transmission configuration with the first transmission configuration; when the first field is in the second state, the initial transmission configuration is maintained unchanged.
In another possible implementation manner, after receiving the first indication information, the terminal device replaces the initial transmission configuration with the first transmission configuration carried in the first indication information.
By using the technical scheme provided by the embodiment of the application, only one transmission configuration update is needed, and after that, the terminal equipment can directly transmit each time of SRS transmission, each network equipment and the centralized processing equipment do not need to acquire the SRS transmission configuration information of the terminal equipment of the whole station in real time, and the pilot frequency transmission power is not needed to be calculated repeatedly and indicated to the terminal equipment, so that the information interaction quantity, the calculation complexity and the pilot frequency power indication cost are obviously reduced. In addition, the sending configuration of SRS of each terminal device is configured through the centralized processing device, so that the number of terminal devices which send SRS simultaneously in parallel is kept relatively stable, interference fluctuation is stable, the intensity of jitter variation is reduced, the probability of pilot power indication re-performed by the network device due to the intense interference fluctuation is reduced, and pilot indication overhead can be further reduced.
In the above embodiments, taking the example in which the centralized processing device implements the transmission configuration of the SRS for each terminal device, an implementation manner in which the network device, that is, the TRP implements the transmission configuration of the SRS for each terminal device is described below.
Referring to fig. 7, a flowchart of still another communication method according to an embodiment of the present application is shown.
The method comprises the following steps:
S41: the terminal device transmits UCI.
The terminal equipment transmits UCI to the self cooperative network equipment to indicate the initial transmission configuration of the self SRS, wherein the initial transmission configuration at least comprises an initial transmission period, an initial time slot offset and initial transmission power of the SRS.
For example, the network device b1 is a cooperative network device of the terminal device a1, and is a service network device of the terminal device a2, where the network device b may obtain an initial transmission configuration of one or more terminal devices. Specifically, the network device b1 may obtain the initial transmission configuration of the terminal device a2 served by the network device b1, and obtain the initial transmission configuration of the terminal device a1 from UCI sent by the terminal device a1, where the network device b1 may also obtain the initial transmission configuration of the terminal device sent by other network devices adjacent to the physical location, so as to perform centralized processing locally. Other adjacent network devices will send the initial sending configuration of the served terminal device and the cooperative terminal device to the network device b, and the initial sending configuration is centrally processed by the network device b. For example, the network device b1 is adjacent to the network device b2, and the network device b2 transmits the initial transmission configuration of the terminal device e served by itself and the terminal device f in cooperation to the network device b1.
In the application scenario of the present application, the network device b1 generally obtains initial transmission configurations of a plurality of terminal devices.
S42: the network device determines a minimum transmission period in a plurality of initial transmission periods and a first terminal device set corresponding to the minimum transmission period.
In the scheme of the embodiment of the application, the network equipment can redetermine the transmission configuration of a plurality of terminal equipment, so that the interference of SRS presents a periodic change rule, and the interference fluctuation amplitude is reduced, so that the interference fluctuation is stable, and the power indication overhead is reduced.
The network device may reconfigure a transmission period, a slot offset, and a transmission power of the SRS for one or more of the terminal devices according to the plurality of initial transmission configurations.
The initial transmission period of the SRS resource may be configured to be 1,2,4,5,8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 640, 1280, 2560 slots, and the embodiment of the present application is not limited to the initial transmission period of each terminal device.
S43: the network device configures a first transmission period of other terminal devices than the first terminal device set to be an integer multiple of a minimum transmission period.
The first transmission period of the other terminal device is configured as an integer multiple of the minimum transmission period, i.e. the minimum transmission period is made the greatest common divisor of the first transmission periods of all terminal devices. In practical applications, when configuring the first transmission period of the terminal device, the transmission period may be increased or decreased, and the configuration manner of the first transmission period is specifically described below.
In one possible implementation, when the initial transmission period of the SRS of the terminal device is not an integer multiple of the minimum transmission period, the time length of the first transmission period of the terminal device may be configured to be nearest to the initial transmission period and be an integer multiple of the minimum transmission period. The implementation method can avoid larger difference between the first transmission period and the initial transmission period while configuring the first transmission period of the terminal equipment, thereby reducing the interference fluctuation amplitude caused by adjusting the transmission period of the SRS.
In another possible implementation, the adjustment is performed in consideration of the time-varying characteristics of the channel of the terminal device when configuring the first transmission period of the terminal device, which is described in detail below.
When the initial transmission period of the SRS of the terminal equipment is integral multiple of the minimum transmission period, the network equipment configures the first transmission period of the terminal equipment as the initial transmission period of the terminal equipment.
When the initial transmission period of the SRS of the terminal equipment is not an integral multiple of the minimum transmission period and the channel of the terminal equipment is a fast fading channel, the network equipment configures the first transmission period of the terminal equipment to be an integral multiple of the minimum transmission period and enables the first transmission period to be smaller than the initial transmission period. In a preferred implementation manner, the time length of the first transmission period of the terminal device is configured to be smaller than the initial transmission period, is closest to the initial transmission period and is an integer multiple of the minimum transmission period, so that a large difference between the first transmission period and the initial transmission period is avoided as much as possible, and interference fluctuation amplitude caused by adjusting the transmission period of the SRS is reduced.
When the initial transmission period of the SRS of the terminal equipment is not an integral multiple of the minimum transmission period and the channel of the terminal equipment is not a fast fading channel, the network equipment configures the first transmission period of the terminal equipment to be an integral multiple of the minimum transmission period and enables the first transmission period to be larger than the initial transmission period. In a preferred implementation manner, the time length of the first transmission period of the terminal device is configured to be greater than the initial transmission period, is closest to the initial transmission period and is an integer multiple of the minimum transmission period, so that a large difference between the first transmission period and the initial transmission period is avoided as much as possible, and interference fluctuation amplitude caused by adjusting the transmission period of the SRS is reduced.
S44: the first slot offset of each terminal device is configured as an integer multiple of the minimum transmission period.
The purpose of configuring the first slot offset for each terminal device is to implement grouping for each terminal device, so that the sending timing of sending SRS by each terminal device is different. By grouping, the number of terminal devices that simultaneously transmit SRS in the same time period can be made not much larger and not much smaller than the number of terminal devices that simultaneously transmit SRS in the next time period.
When the network device configures the first time slot offset, the total number of the terminal devices is determined to be N, wherein N is a positive integer. Then dividing N first transmission periods into M groups in sequence from big to small, wherein the number of SRS transmission periods included in the previous M-1 groups isThe first slot offset of the i-th group first transmission period is configured as T 0 (i-1). Where i=1, 2, …, M, the minimum transmission period is T 0. The specific grouping manner may be referred to in the corresponding descriptions in fig. 5 and fig. 6, and the embodiments of the present application are not repeated here.
S45: the network device determines a first transmit power according to the first transmit period and the first slot offset.
After the network device completes the configuration of the first transmission period and the first time slot offset of each terminal device, determining the first transmission power of the terminal device according to the first transmission period and the first time slot offset of each terminal device.
The first transmit power is generally different from the initial transmit power when at least one of the first transmit period and the first slot offset of the terminal device changes as compared to the initial transmit configuration. When the SRS transmission period and the SRS slot offset of the terminal device are maintained unchanged, the first transmission power of the SRS configured for the terminal device may be the same as or different from the initial transmission power.
The first transmission power may be related to one or more conditions in a first transmission period, a number of devices transmitting SRS in the same minimum transmission period.
S46: and when the first transmission period is different from the initial transmission period, or the first time slot offset is different from the initial time slot offset, or the first transmission power is different from the initial transmission power, the network equipment generates a first transmission configuration of the terminal equipment.
S47: the network device sends first indication information.
The network device may send the first indication information directly to the served terminal device, and for the cooperative terminal device, the network device may send the first transmission configuration of the terminal device served by the neighboring network device to the neighboring network device, and the neighboring network device may send the first indication information to the corresponding terminal device.
For example, the network device b1 may transmit the first indication information only to the terminal device a2 of the service, and for the first transmission configuration of the terminal device e to be then transmitted to the network device b2, the network device b2 may be caused to transmit the first indication information to the terminal device e. Wherein the network device b2 is adjacent to the network device b1, and the network device b2 is a service network device of the terminal device e. The cooperative network device of the terminal device a1 of the network device b2, the serving network device of the terminal device a1 is the network device b3, and the network device b1 sends the first indication information including the first sending configuration of the a1 to the network device b 3.
The first indication information carries a first sending configuration of the corresponding terminal equipment, and the first sending configuration comprises a first sending period of SRS, a first time slot offset and a first sending power.
In one possible implementation, the first indication information is MAC CE signaling. The MAC CE signaling includes a new power indication field and a new transmission period indication field, where the power indication field indicates a first transmission power, and the transmission period indication field indicates a first transmission period and a first slot offset.
In another possible implementation manner, the first indication information is DCI, where the DCI may carry HARQ, uplink and downlink resource allocation information, power control information, and the like. In this implementation, the DCI may include a power indication field indicating the first transmission power and a newly added transmission period indication field indicating the first transmission period and the first slot offset.
In a possible implementation manner, a first field may be further added to the first indication information, where the first field is used to identify whether the terminal device needs to update the SRS transmission configuration to the first transmission configuration carried in the first information.
When the first field is in a first state, indicating the terminal equipment to replace the initial transmission configuration by the first transmission configuration; and when the first field is in the second state, indicating the terminal equipment to maintain the initial transmission configuration unchanged.
S48: and the terminal equipment updates the SRS sending configuration of the terminal equipment according to the first indication information.
In one possible implementation manner, the first indication information includes a first field, and when the first field is in a first state, the terminal device replaces the initial transmission configuration with the first transmission configuration; when the first field is in the second state, the initial transmission configuration is maintained unchanged.
In another possible implementation manner, after receiving the first indication information, the terminal device replaces the initial transmission configuration with the first transmission configuration carried in the first indication information.
By using the technical scheme provided by the embodiment of the application, the configuration update is only needed to be sent once, and after that, the terminal equipment can directly send each time of SRS sending, each network equipment does not need to acquire the SRS sending configuration information of the terminal equipment of the total station in real time, and does not need to repeatedly calculate pilot frequency sending power and indicate the pilot frequency sending power to the terminal equipment, so that the information interaction quantity, the calculation complexity and the pilot frequency power indication cost are obviously reduced. In addition, the network device can comprehensively configure the SRS transmission configuration of each terminal device, so that the number of terminal devices simultaneously transmitting SRS in parallel is kept relatively stable, the interference fluctuation is relatively stable, the intensity of jitter variation is reduced, the probability of pilot power indication re-performed by the network device due to the intense interference fluctuation is reduced, and the pilot indication overhead can be further reduced.
Based on the communication method provided by the above embodiment, the embodiment of the present application further provides a terminal device.
Referring to fig. 8, the diagram is a schematic diagram of a terminal device provided in an embodiment of the present application.
The type of the terminal device is not particularly limited in the embodiment of the present application, and the terminal device includes a processor 710, a memory 720, a communication module 730, an antenna 740, and the like. It is to be understood that the structure illustrated in the present embodiment does not constitute a specific limitation on the electronic apparatus. In other embodiments, the electronic device may include more or fewer components than shown, or certain components may be combined, or certain components may be split, or different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.
Processor 710 may include one or more processing units such as, for example: processor 710 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (IMAGE SIGNAL processor, ISP), a controller, a video codec, a digital signal processor (DIGITAL SIGNAL processor, DSP), a baseband processor, and/or a neural-Network Processor (NPU), etc. Wherein the different processing units may be separate devices or may be integrated in one or more processors.
Memory 720 may be used to store computer-executable program code that includes instructions. Processor 710 executes various functional applications and data processing by executing instructions stored in memory 720. The memory 720 may include a stored program area and a stored data area. The storage program area may store an operating system, an application program required for at least one function, and the like. The storage data area may store data collected or generated during use. Memory 720 may include high-speed random access memory and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, universal flash memory (universal flash storage, UFS), and the like.
The communication module 730 and the antenna 740 are used to implement a communication function, and the antenna 740 may include one or more. The communication module 730 may provide solutions for wireless communication including wireless local area network (wireless local area networks, WLAN), bluetooth (BT), global navigation satellite system (global navigation SATELLITE SYSTEM, GNSS), frequency modulation (frequency modulation, FM), near field communication (NEAR FIELD communication, NFC), infrared (IR), etc. applied on the terminal device.
The communication module 730 is coupled to the antenna 740 and may also enable the terminal device to communicate with the network and other devices via wireless communication techniques. The wireless communication techniques can include a global system for mobile communications (global system for mobile communications, GSM), general packet radio service (GENERAL PACKET radio service, GPRS), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), BT, GNSS, WLAN, NFC, FM, and/or IR techniques, among others. The GNSS may include a global satellite positioning system (global positioning system, GPS), a global navigation satellite system (global navigation SATELLITE SYSTEM, GLONASS), a beidou satellite navigation system (beidou navigation SATELLITE SYSTEM, BDS), a quasi zenith satellite system (quasi-zenith SATELLITE SYSTEM, QZSS) and/or a satellite based augmentation system (SATELLITE BASED AUGMENTATION SYSTEMS, SBAS).
Based on the communication method provided by the above embodiment, the embodiment of the present application also provides a communication device.
Referring to fig. 9, a schematic diagram of a communication device according to an embodiment of the present application is shown.
The type of communication device includes, but is not limited to, communication devices that are TPR, centralized processing equipment, and the like. This communication apparatus will be described by taking TPR as an example.
The TPR includes portions 1110, 1120, and 1130. The TPR may serve as a service TRP for some terminal devices at the same time as a service TRP for other terminal devices.
The 1110 part is mainly used for baseband processing, controlling TPR and the like; section 1110 is typically a control center of the TPR, which may be generally referred to as a processor, for controlling the TPR to perform the communication method in the above-described method embodiments.
Portion 1120 is mainly used for storing computer program code and data. The 1130 part is mainly used for receiving and transmitting radio frequency signals and converting the radio frequency signals and baseband signals; portion 1130 may be referred to generally as a transceiver module, transceiver circuitry, or transceiver, etc.
The transceiver module of section 1130, which may also be referred to as a transceiver or transceiver, includes an antenna 1133 and radio frequency circuitry (not shown) that is primarily used for radio frequency processing. Alternatively, the means for implementing the receiving function in section 1130 may be regarded as a receiver and the means for implementing the transmitting function may be regarded as a transmitter, i.e. section 1130 includes a receiver 1132 and a transmitter 1131. The receiver may also be referred to as a receiving module, receiver, or receiving circuit, etc., and the transmitter may be referred to as a transmitting module, transmitter, or transmitting circuit, etc.
Portions 1110 and 1120 may include one or more boards, each of which may include one or more processors and one or more memories. The processor is used for reading and executing programs in the memory to realize the baseband processing function and control the TPR. If there are multiple boards, the boards can be interconnected to enhance processing power. As an alternative implementation manner, the multiple boards may share one or more processors, or the multiple boards may share one or more memories, or the multiple boards may share one or more processors at the same time.
For example, in one implementation, the transceiver module of portion 1130 is configured to perform the process of transceiving relevant information performed by the network device or the centralized processing device in the foregoing method embodiment. The processor of section 1110 is configured to perform the processing of the relevant information by the network device or the centralized processing device in the foregoing method embodiments.
It should be understood that fig. 9 is merely an example and not a limitation, and that the communication device including the processor, the memory, and the transceiver described above may not rely on the structure shown in fig. 9.
Referring to fig. 10, a schematic diagram of a communication system according to an embodiment of the present application is shown.
The centralized processing device 820 may be a BBU, and the centralized processing device 820 may be connected to a plurality of TRPs and perform a baseband processing function on signals received from and signals required to be transmitted to the plurality of TRPs. Only the scenario when the centralized processing device 820 connects TRP1 and TRP2 is illustrated in the figure.
In one example, the centralized processing device 820 may include one or more single boards, where the multiple single boards may support radio access networks of a single access system (such as an LTE network) together, or may support radio access networks of different access systems (such as an LTE network, a 5G network, or other networks) respectively.
The centralized processing device 820 also includes a memory 821 and a processor 822. The memory 821 is used to store necessary instructions and data. The processor 822 may control the TRP to perform the necessary actions, for example, may control the TRP to perform the operational procedures described in the method embodiments above. The memory 821 and processor 822 may serve one or more boards. That is, the memory and the processor may be separately provided on each board. It is also possible that multiple boards share the same memory and processor. In addition, each single board can be provided with necessary circuits.
It should be appreciated that the communication system shown in fig. 10 is capable of implementing the various processes in the method embodiments shown in fig. 3, 4 or 7. The operations and/or functions of the respective modules in the communication system are respectively for implementing the corresponding flows in the above-mentioned method embodiments. Reference is specifically made to the description in the above method embodiments, and detailed descriptions are omitted here as appropriate to avoid repetition.
Embodiments of the present application also provide a storage medium that may be any available medium that a computing device can store or a data storage device such as a data center containing one or more 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), etc. The computer-readable storage medium includes instructions that instruct an electronic device to perform the communication method described above. Embodiments of the present application also provide another computer-readable storage medium. The computer-readable storage medium includes instructions that instruct an electronic device to perform the communication method described above.
Embodiments of the present application also provide a computer program product comprising instructions. The computer program product may be a software or program product containing instructions capable of running on an electronic device or stored in any useful medium. The computer program product, when run on at least one electronic device, causes the at least one electronic device to perform the communication method described above. Embodiments of the present application also provide a computer program product comprising instructions. The computer program product, when run on at least one electronic device, causes the at least one electronic device to perform the communication method described above.
It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (16)

1. A communication method, applied to a terminal device, the method comprising:
transmitting uplink control information UCI, where the UCI indicates an initial transmission configuration of a channel sounding reference signal SRS of the terminal device, where the initial transmission configuration at least includes an initial transmission period, an initial slot offset, and initial transmission power of the SRS, and the initial transmission configuration of the SRS of the terminal device is used to determine, together with initial transmission configurations of SRS of other terminal devices, first transmission configurations of the terminal device and the other terminal devices;
Receiving a first transmission configuration of the terminal equipment, wherein the first transmission configuration of the terminal equipment comprises a first transmission period, a first time slot offset and a first transmission power of SRS of the terminal equipment;
Updating the SRS sending configuration of the terminal equipment according to the first sending configuration of the terminal equipment.
2. The method of claim 1, wherein the first transmission configuration of the terminal device is indicated by first indication information, wherein the first indication information is a medium access control element, MAC CE, signaling, wherein the MAC CE signaling includes a new power indication field and a new transmission period indication field, wherein the power indication field indicates the first transmission power, and wherein the transmission period indication field indicates the first transmission period and the first slot offset.
3. The method of claim 1, wherein the first transmission configuration of the terminal device is indicated by first indication information, the first indication information being downlink control information DCI, the DCI including a power indication field and a newly added transmission period indication field, the power indication field indicating the first transmission power, the transmission period indication field indicating the first transmission period and the first slot offset.
4. A method according to any one of claims 2-3, wherein the first indication information comprises a first field, and wherein updating the SRS transmission configuration of the terminal device according to the first transmission configuration of the terminal device comprises:
when the first field is in a first state, replacing the initial transmission configuration by using a first transmission configuration of the terminal equipment;
And when the first field is in the second state, maintaining the initial sending configuration unchanged.
5. A method of communication, the method comprising:
Acquiring initial transmission configuration of channel Sounding Reference Signals (SRS) of a plurality of terminal devices, wherein the initial transmission configuration at least comprises an initial transmission period, an initial time slot offset and initial transmission power of the SRS;
Determining a first transmission period, a first time slot offset and a first transmission power of SRS of each terminal device according to a plurality of initial transmission configurations;
for each terminal device, when the first transmission period is different from the initial transmission period, the first slot offset is different from the initial slot offset, or the first transmission power is different from the initial transmission power, generating a first transmission configuration of the terminal device, and transmitting the first transmission configuration to the terminal device, wherein the first transmission configuration includes the first transmission period, the first slot offset, and the first transmission power of SRS.
6. The method according to claim 5, wherein the transmitting the first transmission configuration to the terminal device specifically comprises:
And sending first configuration information to first network equipment so that the first network equipment sends first indication information to the terminal equipment, wherein the first configuration information comprises the first sending configuration, and the first indication information indicates the first sending configuration.
7. The method according to claim 6, wherein the obtaining initial transmission configuration of the channel sounding reference signals SRS of the plurality of terminal apparatuses includes:
And acquiring first cooperation information sent by one or more network devices, wherein each first cooperation information comprises initial sending configuration of one or more terminal devices, and the one or more network devices comprise the first network device.
8. The method according to claim 5, wherein the transmitting the first transmission configuration to the terminal device specifically comprises:
And sending first indication information to the terminal equipment, wherein the first indication information indicates the first sending configuration.
9. The method according to claim 6 or 8, wherein the first indication information is a medium access control element, MAC CE, signaling, the MAC CE signaling including a new power indication field and a new transmission period indication field, the power indication field indicating the first transmission power, the transmission period indication field indicating the first transmission period and the first slot offset.
10. The method according to claim 6 or 8, wherein the first indication information is downlink control information, DCI, the DCI including a power indication field and a new transmission period indication field, the power indication field indicating the first transmission power, the transmission period indication field indicating the first transmission period and the first slot offset.
11. The method of claim 5, wherein the determining the first transmission period, the first slot offset, and the first transmission power of the SRS for each of the terminal devices based on the plurality of initial transmission configurations comprises:
determining a minimum sending period in a plurality of initial sending periods and a first terminal equipment set corresponding to the minimum sending period;
Configuring the first transmission period of other terminal devices except the first terminal device set to be an integer multiple of the minimum transmission period;
Configuring the first time slot offset of each terminal device to be an integer multiple of the minimum transmission period;
and determining the first transmission power according to the first transmission period and the first time slot offset.
12. The method of claim 11, wherein the configuring the first transmission period of the other terminal devices than the first set of terminal devices to be an integer multiple of the minimum transmission period comprises:
For any one terminal device except the first terminal device set, the following configuration mode is adopted:
when the initial transmission period of the SRS of the terminal equipment is an integral multiple of the minimum transmission period, configuring the first transmission period of the terminal equipment as the initial transmission period of the terminal equipment;
when the initial transmission period of the SRS of the terminal equipment is not an integer multiple of the minimum transmission period and the channel of the terminal equipment is a fast fading channel, configuring the first transmission period of the terminal equipment to be an integer multiple of the minimum transmission period and enabling the first transmission period to be smaller than the initial transmission period;
When the initial transmission period of the SRS of the terminal device is not an integer multiple of the minimum transmission period and the channel of the terminal device is not a fast fading channel, configuring the first transmission period of the terminal device to be an integer multiple of the minimum transmission period and making the first transmission period larger than the initial transmission period.
13. The method of claim 11, wherein a number of the plurality of terminal devices is N, the N is a positive integer, the minimum transmission period is T 0, and the configuring the first slot offset of each of the terminal devices to be an integer multiple of the minimum transmission period comprises:
dividing the N first transmission periods into M groups sequentially from big to small, wherein the number of SRS transmission periods included in the previous M-1 groups is equal to ；
The first slot offset of the i-th group first transmission period is configured as T 0 (i-1), where i=1, 2, …, M.
14. A terminal device comprising a processor and a memory;
the processor is coupled with the memory;
the memory is used for storing computer programs and/or instructions;
The processor is configured to execute a computer program and/or instructions stored in the memory to implement the communication method according to any one of claims 1 to 4.
15. A communication device comprising a processor and a memory;
the processor is coupled with the memory;
The memory is used for storing instructions;
the processor is configured to execute a computer program or instructions stored in the memory to implement the communication method of any one of claims 5 to 13.
16. A computer storage medium storing a computer program which, when executed, is adapted to carry out the communication method of any one of claims 1 to 4 or to carry out the communication method of any one of claims 5 to 13.
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