Method and related device for multiple transmission reception point (TRP) coordinated communication

Abstract

This application discloses a method and related equipment for multi-transmitter / receiver point (TRP) cooperative communication, belonging to the field of communication technology. The method is applied to a serving TRP and includes: sending multiple candidate calibration weight groups to a cooperating TRP; sending first channel state information (RSRP) signals corresponding to the multiple candidate weight groups to a target terminal; determining a target calibration weight group among the multiple candidate calibration weight groups based on RSRP resource indication information fed back by the target terminal based on the first RSRP signals; and sending the target calibration weight group to the cooperating TRP so that the cooperating TRP calibrates its second antenna according to the target calibration weight group. This reduces the impact of delay or phase deviation of the signals transmitted between the cooperating TRP and the serving TRP on the downlink channel quality of the target terminal, improving the performance gain of multi-TRP cooperative communication.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of communication, and in particular, to a method for coordinated communication of multiple transmission reception points (TRPs) and related equipment. BACKGROUND

[0002] A cellular mobile communication system is usually centered on a base station, and each base station only serves its own users, which results in users at the edge of a cell being interfered by multiple neighboring cells, and both system performance and user perception are poor.

[0003] Currently, the main technology for solving the edge user perception is coordinated multiple points (CoMP) technology. In the CoMP technology, instead of a single transmission reception point (TRP) providing services to a target terminal, multiple TRPs collectively provide services to the same target terminal, for example, multiple TRPs send the same data stream to the same target terminal to improve the reliability of data transmission. SUMMARY

[0004] Embodiments of the present application provide a method for coordinated communication of multiple transmission reception points (TRPs) and related equipment, to solve the problem that the performance gain effect is not ideal due to the time delay and phase deviation of signals transmitted by different TRPs in the process of coordinated communication of multiple TRPs.

[0005] In a first aspect, embodiments of the present application provide a method for coordinated communication of multiple transmission reception points (TRPs), applied to a serving TRP, comprising:

[0006] sending multiple candidate calibration weight sets to a cooperating TRP, so that the cooperating TRP transmits first channel state information reference signals corresponding to the multiple candidate calibration weight sets to a target terminal in cooperation with the serving TRP;

[0007] sending multiple candidate weight sets corresponding to the first channel state information reference signals to the target terminal;

[0008] determining a target calibration weight set from the multiple candidate calibration weight sets according to RSRP resource indication information fed back by the target terminal based on the first channel state information reference signals;

[0009] sending the target calibration weight set to the cooperating TRP, so that the cooperating TRP calibrates a second antenna of the cooperating TRP according to the target calibration weight set.

[0010] In a second aspect, embodiments of the present application provide a method for coordinated communication of multiple transmission reception points (TRPs), applied to a cooperating TRP, comprising:

[0011] Receive multiple candidate calibration weight groups sent by the service TRP;

[0012] Send first channel state information reference signals corresponding to multiple candidate calibration weight groups to the target terminal;

[0013] Receive a target candidate calibration weight group from a plurality of candidate calibration weight groups sent by the serving TRP; wherein the target candidate calibration weight group is determined by the serving TRP according to the RSRP resource indication information fed back by the target terminal;

[0014] The second antenna of the cooperative TRP is calibrated according to the target candidate calibration weight set.

[0015] Thirdly, embodiments of this application provide a method for multi-transmitter-receiver point (TRP) cooperative communication, applied to a target terminal, including:

[0016] Receive multiple sets of first channel state information reference signals sent by the serving TRP and the cooperating TRP; wherein each set of first channel state information reference signals corresponds to a candidate calibration weight set, and the candidate calibration weight set is any one of multiple candidate calibration weight sets;

[0017] The RSRP of the resources corresponding to the multiple sets of first channel state information reference signals is measured to determine the RSRP resource indication information corresponding to the target RSRP among the multiple RSRPs; the RSRP resource indication information is sent to the serving TRP so that the serving TRP determines the target calibration weight group among the multiple candidate calibration weight groups based on the RSRP resource indication information.

[0018] Fourthly, embodiments of this application provide a TRP device, including:

[0019] The first sending module is used to send multiple candidate calibration weight groups to the cooperating TRP, so that the cooperating TRP, in conjunction with the serving TRP, sends the first channel state information reference signal corresponding to the multiple candidate calibration weight groups to the target terminal.

[0020] The second sending module is used to send first channel state information reference signals corresponding to multiple candidate weight groups to the target terminal;

[0021] The determination module is used to determine the target calibration weight group among the multiple candidate calibration weight groups based on the RSRP resource indication information fed back by the target terminal based on the first channel state information reference signal;

[0022] The third transmitting module is used to transmit the target calibration weight set to the cooperative TRP, so that the cooperative TRP calibrates the second antenna of the cooperative TRP according to the target calibration weight set.

[0023] Fifthly, embodiments of this application provide a TRP device, including:

[0024] The first transceiver module is used to receive multiple candidate calibration weight groups sent by the serving TRP;

[0025] Send first channel state information reference signals corresponding to multiple candidate calibration weight groups to the target terminal;

[0026] Receive a target candidate calibration weight group from a plurality of candidate calibration weight groups sent by the serving TRP; wherein the target candidate calibration weight group is determined by the serving TRP according to the RSRP resource indication information fed back by the target terminal;

[0027] A calibration module is used to calibrate the second antenna of the cooperative TRP according to the target candidate calibration weight set.

[0028] Sixthly, embodiments of this application provide a terminal, including:

[0029] The second transceiver module is used to receive multiple sets of first channel state information reference signals sent by the serving TRP and the cooperating TRP; wherein each set of first channel state information reference signals corresponds to a candidate calibration weight set, and the candidate calibration weight set is any one of multiple candidate calibration weight sets;

[0030] The RSRP resource indication information is sent to the serving TRP, so that the serving TRP determines the target calibration weight group among the plurality of candidate calibration weight groups based on the RSRP resource indication information;

[0031] The measurement module is used to measure the RSRP of the resources corresponding to the multiple sets of first channel state information reference signals, and determine the RSRP resource indication information corresponding to the target RSRP among the multiple RSRPs.

[0032] In a seventh aspect, embodiments of this application provide an electronic device, including a processor and a memory, wherein the memory stores a program or instructions executable on the processor, and the program or instructions, when executed by the processor, implement the steps of the method described in the first, second, or third aspect above.

[0033] Eighthly, embodiments of this application provide a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first, second, or third aspects above.

[0034] In this embodiment, the serving TRP sends multiple candidate calibration weight sets to the cooperating TRP, enabling the cooperating TRP to coordinate with the serving TRP to send first channel state information reference signals corresponding to the multiple candidate calibration weight sets to the target terminal. The serving TRP sends the first channel state information reference signals corresponding to the multiple candidate weight sets to the target terminal. Based on the RSRP resource indication information fed back by the target terminal based on the first channel state information reference signals, a target calibration weight set is determined from the multiple candidate calibration weight sets. The target calibration weight set is then sent to the cooperating TRP, enabling the cooperating TRP to calibrate its second antenna according to the target calibration weight set. In this way, the serving TRP can obtain a target calibration weight set from the multiple candidate calibration weight sets that better matches the downlink channel quality of the target terminal. Furthermore, the cooperating TRP calibrates its second antenna according to the target calibration weight set, which can reduce the impact of delay or phase deviation of the signals transmitted by the cooperating TRP and the serving TRP on the downlink channel quality of the target terminal, thereby improving the performance gain of multi-TRP cooperative communication.

[0035] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0036] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0037] Figure 1 A flowchart illustrating a method for multi-transmitter / receiver point (TRP) cooperative communication provided in an embodiment of this application is shown.

[0038] Figure 2 A schematic diagram of a multi-TRP cooperative communication scenario provided in an embodiment of this application is shown;

[0039] Figure 3 A calibration schematic diagram of the second antenna of the cooperative TRP provided in this application embodiment is shown;

[0040] Figure 4 This illustration shows a schematic diagram of coherent beam emission provided in an embodiment of this application;

[0041] Figure 5 A flowchart illustrating another method for multi-transmitter / receiver point (TRP) cooperative communication provided in an embodiment of this application is shown.

[0042] Figure 6 This paper illustrates a flowchart of another method for multi-transmitter / receiver point (TRP) cooperative communication provided in an embodiment of this application.

[0043] Figure 7 This paper shows a schematic diagram of the structure of a TRP device provided in an embodiment of this application;

[0044] Figure 8 This invention provides a schematic diagram of the structure of another TRP device according to an embodiment of the present application.

[0045] Figure 9 This illustration shows a structural diagram of a terminal provided in an embodiment of this application;

[0046] Figure 10 This illustration shows a structural schematic diagram of a multi-transmitter-receiver point (TRP) cooperative communication system provided in an embodiment of this application;

[0047] Figure 11 A schematic diagram of the structure of an electronic device provided in an embodiment of this application is shown. Detailed Implementation

[0048] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0049] In wireless communication, Coordinated Multiple Points (CoMP) technology can be used to improve the quality of service (QoS) for users at the cell edge and increase cell edge throughput through joint scheduling of interactive measurements and data information between neighboring cells. In CoMP, multiple Terminal Reference Points (TRPs) (e.g., serving TRP and cooperating TRPs) jointly provide services to the same target terminal. The TRP corresponding to the serving cell where the target terminal is located is called the serving TRP, and those TRPs that also provide services to the target terminal are called cooperating TRPs. When the target terminal is at the cell edge, the serving TRP and cooperating TRPs send downlink data to the target terminal to improve its signal quality.

[0050] However, the distances between different TRPs and the target terminal vary, and there are time delays or phase deviations in the signals transmitted by the serving TRP and the cooperating TRP, resulting in unsatisfactory performance gains in multi-TRP collaborative communication.

[0051] To address the problems existing in the multi-transmitter-receiver (TRP) cooperative communication process mentioned above, this application provides a method for multi-transmitter-receiver (TRP) cooperative communication. The serving TRP and the cooperating TRP jointly send a first channel state information reference signal to the target terminal. The serving TRP selects a target calibration weight group from multiple candidate calibration weight groups that better matches the downlink channel quality of the target terminal based on the RSRP resource indication information fed back by the target terminal. Then, the cooperating TRP calibrates the second antenna according to the target calibration weight group, thereby reducing the impact of delay or phase deviation of the signals transmitted by the cooperating TRP and the serving TRP on the downlink channel quality of the target terminal and improving the performance gain of multi-TRP cooperative communication.

[0052] Please see Figure 1 , Figure 1 This illustration shows a flowchart of a method for cooperative communication among multiple sender-receiver points (TRPs) according to an embodiment of this application. The method 100 is applied to a serving TRP and may include the following steps:

[0053] S101: Send multiple candidate calibration weight groups to the cooperating TRP, so that the cooperating TRP, in conjunction with the serving TRP, sends the first channel state information reference signal corresponding to the multiple candidate calibration weight groups to the target terminal;

[0054] S102: Send the first channel state information reference signals corresponding to multiple candidate weight groups to the target terminal;

[0055] S103: Based on the RSRP resource indication information fed back by the target terminal based on the first channel state information reference signal, determine the target calibration weight group among the multiple candidate calibration weight groups;

[0056] S104: Send the target calibration weight set to the cooperative TRP so that the cooperative TRP calibrates the second antenna of the cooperative TRP according to the target calibration weight set.

[0057] In this embodiment, the serving TRP and the cooperating TRP can be located at base stations in the same cell, at the same base station in different cells, or at different base stations in different cells. In S101 above, the serving TRP sending multiple candidate calibration weight groups to the cooperating TRP can include the following methods:

[0058] In one possible scenario, when the serving TRP and the cooperating TRP belong to the same cell, multiple candidate calibration weight groups can be sent through the air interface between the serving TRP and the cooperating TRP.

[0059] In one possible scenario, when the serving TRP belongs to cell 1, the cooperating TRP belongs to cell 2, and cell 1 and cell 2 belong to the same base station, the serving TRP and the cooperating TRP can send multiple candidate calibration weight groups through the interface between cell 1 and cell 2 (e.g., the Xn interface).

[0060] In another possible scenario, when the serving TRP belongs to cell 1, the cooperating TRP belongs to cell 2, and cell 1 belongs to base station 1 and cell 2 belongs to base station 2, the serving TRP and the cooperating TRP can send multiple candidate calibration weight groups through the interface between base station 1 and base station 2.

[0061] Taking the service TRP and the cooperation of different base stations distributed in different cells as an example, such as Figure 2 As shown, the serving TRP is distributed at base station A in the serving cell, and the cooperating TRP can be distributed at base station B in neighboring cell 1, base station C in neighboring cell 2, and base station D in neighboring cell 3. The serving TRP and the cooperating TRP can send multiple candidate calibration weight groups through the interface between the base stations.

[0062] In one possible implementation, the serving cell's base station A can select cooperating cells based on the A3 measurement report reported by the target terminal. Specifically, the serving cell's base station A obtains the A3 measurement report sent by the target terminal. This A3 measurement report includes configuration information of multiple neighboring cells corresponding to the serving cell and the Reference Signal Receiving Power (RSRP) of each neighboring cell. Based on this A3 measurement report, the serving cell's base station A selects a neighboring cell whose configuration information and RSRP strength meet preset conditions as a cooperating cell, and the TRP corresponding to this cooperating cell is designated as the cooperating TRP. The preset conditions can be either selecting a neighboring cell with the same configuration information as the serving cell and an RSRP strength exceeding a preset strength threshold, or selecting a neighboring cell with the same configuration information as the serving cell and the highest RSRP strength among the multiple neighboring cells. Here, the configuration information can include transmit / receive mode, frequency, bandwidth, time slot resources, etc.

[0063] Furthermore, after determining the cooperating TRP, the serving TRP sends multiple candidate calibration weight sets to the cooperating TRP, enabling the cooperating TRP to coordinate with the serving TRP to send the first channel state information reference signal (CSI-RS) corresponding to the multiple candidate calibration weight sets to the target terminal; the serving TRP then sends the first CSI-RS corresponding to the multiple candidate calibration weight sets to the target terminal. In this way, the serving TRP and the cooperating TRP each send the first CSI-RS corresponding to the multiple candidate calibration weight sets to the same target terminal.

[0064] The target terminal receives multiple sets of first CSI-RS sent by the serving TRP and the cooperating TRP, measures the RSRP of the resources corresponding to the multiple sets of first CSI-RS, obtains the RSRP resource indication information corresponding to the target RSRP among the multiple RSRPs, and sends the RSRP resource indication information to the serving TRP.

[0065] The serving TRP determines a target calibration weight group from multiple candidate calibration weight groups based on the RSRP resource indication information fed back by the target terminal based on the first CSI-RS; this target calibration weight group is the candidate calibration weight group indicated by the RSRP resource indication information. Then, the serving TRP sends this target calibration weight group to the cooperating TRP, so that the cooperating TRP calibrates its second antenna according to the target calibration weight group.

[0066] In this way, the serving TRP can obtain a target calibration weight set that better matches the downlink channel quality of the target terminal from multiple candidate calibration weight sets. Then, the cooperating TRP calibrates the second antenna of the cooperating TRP according to the target calibration weight set. This can reduce the impact of the delay or phase deviation of the signals transmitted by the cooperating TRP and the serving TRP on the downlink channel quality of the target terminal and improve the performance gain of multi-TRP cooperative communication.

[0067] In one possible implementation, before sending multiple candidate calibration weight groups to the collaborative TRP in step S101 above, the method further includes:

[0068] Send to the target terminal the first CSI-RS resource configuration information and the first CSI feedback configuration information for RSRP (such as Layer 1 Reference Signal Received Power L1-RSRP) reporting, which are matched to the target terminal's capabilities. The first CSI-RS resource configuration information is used to instruct the target terminal to receive CSI-RS resources, and the first CSI feedback configuration information is used to instruct the target terminal to measure the received CSI-RS resources and then feed back RSRP resource indication information.

[0069] In this way, when the serving TRP and the cooperating TRP send the first CSI-RS to the target terminal, the target terminal can measure the RSRP of the resource corresponding to the first CSI-RS and feed back RSRP resource indication information to the serving TRP.

[0070] The candidate calibration weight set includes a target calibration weight set, which is used to calibrate the delay or phase deviation of the signals transmitted between the serving TRP and the cooperating TRP. In specific applications, the delay or phase deviation of the transmitted signals can be converted into the corresponding downlink data phase difference in the frequency domain. In one possible implementation, the aforementioned candidate calibration weight set includes a second calibration weight.

[0071] The second calibration weight is the calibration weight corresponding to the second antenna of the cooperative TRP; wherein, the second calibration weight is determined based on the first calibration weight corresponding to the first antenna of the serving TRP and the target phase difference, and the target phase difference is the phase difference of the second antenna relative to the first antenna.

[0072] In this embodiment, the serving TRP first designs T sets of candidate calibration weight groups for each single port, where T is a positive integer that can be selected according to actual needs. In each candidate calibration weight group, the first calibration weight corresponding to the first antenna of the serving TRP can be initialized; here, the initial value defaults to 1. Then, based on the initial value and the target phase difference, the second calibration weight corresponding to the second antenna of the cooperating TRP is determined; here, the target phase difference is the phase difference between the second antenna and the first antenna. The candidate calibration weight group can be represented as follows: Where x = 0 to T-1. The candidate calibration weights are used to shape the first antenna of the serving TRP and the second antenna of the cooperating TRP, and the first CSI-RS corresponding to the candidate calibration weight group is sent to the target terminal. The target terminal feeds back RSRP resource indication information cri-RSRP based on channel measurement, where cri corresponds to the target calibration weight group. This refers to the alignment phase of the second antenna of the current cooperating TRP relative to the first antenna of the serving TRP.

[0073] It should be noted that in practical applications, the first antenna of the serving TRP and the second antenna of the cooperating TRP may have multiple antennas. Assuming that both the serving TRP and the cooperating TRP have M antennas, it is necessary to poll all antennas of the serving TRP and the cooperating TRP to obtain the phase alignment. That is, for each antenna of the cooperating TRP, the corresponding target calibration weight set is obtained. This target calibration weight set can be represented as:

[0074]

[0075] For example, such as Figure 3 As shown, taking a single-cell 4-antenna scenario as an example, the first antenna of the serving TRP and the first antenna of the cooperating TRP send the first CSI-RS corresponding to T sets of candidate calibration weights to the target terminal. Based on the cri-RSRP fed back by the target terminal, the alignment phase of the first antenna of the cooperating TRP is determined. The second antenna of the serving TRP and the second antenna of the cooperating TRP send the first CSI-RS corresponding to T sets of candidate calibration weights to the target terminal. Based on the cri-RSRP fed back by the target terminal, the alignment phase of the second antenna of the cooperating TRP is determined. This process is repeated, polling all antennas to obtain the alignment phase of all the second antennas of the cooperating TRP.

[0076] Therefore, the first calibration weight corresponding to each first antenna of the serving TRP is 1, and the second calibration weight corresponding to each second antenna of the cooperating TRP is: The serving TRP can send the second calibration weight corresponding to the cooperating TRP in the target calibration weight to the cooperating TRP, so that the cooperating TRP can calibrate the second antenna of the cooperating TRP according to the second calibration weight.

[0077] In one possible implementation, after step S104 above, whereby the target calibration weight set is sent to the cooperative TRP so that the cooperative TRP calibrates its second antenna according to the target calibration weight set, the method further includes:

[0078] S105: Send the second channel state information reference signal corresponding to the target calibration weight group to the target terminal;

[0079] S106: Receive the precoding matrix indicator fed back by the target terminal based on the second channel state information reference signal;

[0080] S107: Precode the service channel data to be transmitted according to the target calibration weight group and the precoding matrix indicator.

[0081] In this embodiment of the application, after the serving TRP sends the target calibration weight set to the cooperating TRP, the serving TRP and the cooperating TRP respectively compensate the target calibration weight set to the corresponding resources of CSI-RS to obtain the second CSI-RS corresponding to the target calibration weight set, and send the second CSI-RS to the target terminal.

[0082] In practical applications, the second CSI-RS sent by the serving TRP and the cooperating TRP are at the same time-frequency location and use the same port and scrambling sequence to ensure the consistency of other parameters of the two sets of second CSI-RS except for the target calibration weight set.

[0083] The target terminal measures the resources corresponding to the second CSI-RS and reports the optimal cri-RI-PMI-CQI to the serving TRP. The cri-RI-PMI-CQI includes a precoding matrix indicator (PMI), which is the coherent beamforming weight between cells.

[0084] The Serving TRP multiplies the target calibration weight set and the precoding matrix indicator PMI to obtain beamforming weights. Based on the beamforming weights, the service channel data to be transmitted is weighted and then sent to the target terminal to improve the efficiency of data transmission.

[0085] In one possible implementation, before sending the second channel state information reference signal corresponding to the target calibration weight group to the target terminal in step S105 above, the method further includes:

[0086] Send to the target terminal the second CSI-RS resource configuration information and the second CSI feedback configuration information for PMI reporting that match the target terminal's capabilities. The second CSI-RS resource configuration information is used to instruct the target terminal to receive CSI-RS resources, and the second CSI feedback configuration information is used to instruct the target terminal to measure the received CSI-RS resources and then feed back the precoding matrix indicator PMI.

[0087] In this way, when the serving TRP and the cooperating TRP send the second CSI-RS to the target terminal respectively, the target terminal can receive the second CSI-RS, measure the resource corresponding to the second CSI-RS, and then feed back a precoding matrix indicator.

[0088] In one possible implementation, after precoding the traffic channel data to be transmitted according to the target calibration weight set and the precoding matrix indicator in step S107 above, the method further includes:

[0089] The precoding matrix indicator and the traffic channel data are sent to the cooperative TRP so that the cooperative TRP precodes the traffic channel data according to the target calibration weight set and the precoding matrix indicator.

[0090] In the embodiments of this application, such as Figure 4 As shown, taking base station B, where the cooperative TRP is distributed in neighboring cell 1, as an example, base station A sends the target calibration weight set, the precoding matrix indicator (PMI), and the TB data of the service channel PDSCH to be transmitted to base station B. The cooperative TRP corresponding to base station B multiplies the target calibration weight set and the PMI to obtain the beamforming weights. The service channel data to be transmitted is weighted according to the beamforming weights, and the weighted service channel data is sent to the target terminal, which can improve the spectrum efficiency and sensing rate of edge users.

[0091] Please see Figure 5 , Figure 5 This illustration shows a flowchart of another method for cooperative communication in a multi-transmitter / receiver TRP according to an embodiment of this application. The method 500 is applied to a cooperative TRP and may include the following steps:

[0092] S501: Receive multiple candidate calibration weight groups sent by the service TRP;

[0093] S502: Send the first channel state information reference signal corresponding to multiple candidate calibration weight groups to the target terminal;

[0094] S503: Receive the target candidate calibration weight group from the multiple candidate calibration weight groups sent by the serving TRP; wherein, the target candidate calibration weight group is determined by the serving TRP according to the RSRP resource indication information fed back by the target terminal;

[0095] S504: Calibrate the second antenna of the cooperative TRP according to the target candidate calibration weight set.

[0096] In this embodiment of the application, the cooperating TRP first receives multiple candidate calibration weight sets sent by the serving TRP. A candidate calibration weight set can be represented as... Where x = 0 to T-1. Then, multiple candidate calibration weight groups are used to shape the second antenna, and the Cooperative Service (TRP) sends the first channel state information reference signal (CSI-RS) corresponding to each candidate calibration weight group to the target terminal.

[0097] The target terminal receives multiple sets of first CSI-RS sent by the serving TRP and the cooperating TRP, measures the RSRP of the resources corresponding to the multiple sets of first CSI-RS, obtains the RSRP resource indication information corresponding to the target RSRP among the multiple RSRPs, and sends the RSRP resource indication information to the serving TRP.

[0098] The Cooperative TRP receives a target candidate calibration weight group from multiple candidate calibration weight groups sent by the Service TRP; and calibrates the second antenna of the Cooperative TRP according to the target candidate calibration weight group.

[0099] In one possible implementation, after calibrating the second antenna of the cooperative TRP according to the target candidate calibration weight set in step S504 above, the method further includes:

[0100] S505: Send the second channel state information reference signal corresponding to the target calibration weight group to the target terminal;

[0101] S506: Receive the precoding matrix indicator and service channel data sent by the serving TRP; wherein, the precoding matrix indicator is fed back by the target terminal in response to the received second channel state information reference signal.

[0102] S507: Precode the traffic channel data according to the target calibration weight group and the precoding matrix indicator.

[0103] In this embodiment of the application, the cooperative TRP compensates the target calibration weight group to the resource corresponding to the CSI-RS, obtains the second CSI-RS corresponding to the target calibration weight group, and sends the second CSI-RS to the target terminal.

[0104] The target terminal measures the resources corresponding to the second CSI-RS and reports the optimal cri-RI-PMI-CQI to the serving TRP. The cri-RI-PMI-CQI includes the Precoding Matrix Index (PMI), which is the coherent beamforming weight between cells.

[0105] The cooperating TRP receives the precoding matrix indicator and service channel data sent by the serving TRP; it then precodes the service channel data according to the target calibration weight set and the precoding matrix indicator. Specifically, the cooperating TRP can multiply the target calibration weight set and the precoding matrix indicator (PMI) to obtain beamforming weights, weight the service channel data to be transmitted according to the beamforming weights, and send the weighted service channel data to the target terminal to improve the efficiency of data transmission.

[0106] In one possible implementation, step S505 above, sending the second channel state information reference signal corresponding to the target calibration weight group to the target terminal, includes:

[0107] The second antenna of the cooperative TRP is shaped according to the target calibration weight set, and the second channel state information reference signal is sent to the target terminal through the shaped second antenna.

[0108] In this embodiment of the application, the cooperative TRP can shape the second antenna according to the target calibration weight group, and send the second CSI-RS to the target terminal through the shaped second antenna, so that the target terminal can measure the resources corresponding to the second CSI-RS according to the second CSI-RS sent by the serving TRP and the cooperative TRP, and then feed back the inter-cell coherent shaping weight PMI.

[0109] In this way, the serving TRP can obtain a target calibration weight set that is more suitable for the downlink channel quality of the target terminal from multiple candidate calibration weight sets. The cooperating TRP calibrates the second antenna of the cooperating TRP according to the target calibration weight set sent by the serving TRP. This can reduce the impact of the delay or phase deviation of the signals transmitted by the cooperating TRP and the serving TRP on the downlink channel quality of the target terminal and improve the performance gain of multi-TRP cooperative communication.

[0110] Please see Figure 6 , Figure 6 This illustration shows a flowchart of another method for multi-transmitter / receiver point (TRP) cooperative communication provided in an embodiment of this application. The method 600, applied to a target terminal, may include the following steps:

[0111] S601: Receive multiple sets of first channel state information reference signals sent by the serving TRP and the cooperating TRP; wherein each set of first channel state information reference signals corresponds to a candidate calibration weight set, and the candidate calibration weight set is any one of multiple candidate calibration weight sets;

[0112] S602: Measure the RSRP of the resources corresponding to the multiple sets of first channel state information reference signals, determine the RSRP resource indication information corresponding to the target RSRP among the multiple RSRPs; send the RSRP resource indication information to the serving TRP, so that the serving TRP determines the target calibration weight group among the multiple candidate calibration weight groups according to the RSRP resource indication information.

[0113] In this embodiment, the target terminal receives multiple sets of first CSI-RS sent by the serving TRP and the cooperating TRP; measures the RSRP of the resources corresponding to the multiple sets of first CSI-RS to determine the RSRP resource indication information corresponding to the target RSRP among the multiple RSRPs; and sends the RSRP resource indication information to the serving TRP. Here, the target terminal can determine the first CSI-RS with the strongest RSRP among the resources corresponding to the multiple sets of first CSI-RS by measurement, and feed back the RSRP resource indication information corresponding to the first CSI-RS with the strongest RSRP to the cooperating TRP.

[0114] In one possible implementation, before receiving multiple sets of first channel state information reference signals sent by the serving TRP and the cooperating TRP in step S601 above, the method further includes:

[0115] The system receives first CSI-RS resource configuration information and first CSI feedback configuration information from the serving TRP for RSRP (such as Layer 1 Reference Signal Received Power L1-RSRP) reporting. The first CSI-RS resource configuration information instructs the target terminal to receive CSI-RS resources, and the first CSI feedback configuration information instructs the target terminal to measure the received CSI-RS resources and then feed back RSRP resource indication information. This enables the target terminal to measure the RSRP of the resource corresponding to the first CSI-RS upon receiving the first CSI-RS from the serving TRP and cooperating TRP, and to feed back RSRP resource indication information to the serving TRP.

[0116] In this way, the target calibration weight set for calibrating the second antenna of the cooperative TRP can be selected from multiple candidate calibration weight sets based on the RSRP resource indication information fed back by the target terminal, without the need for hardware calibration of the second antenna of the cooperative TRP, thus reducing hardware costs. Furthermore, the serving TRP can obtain a target calibration weight set from multiple candidate calibration weight sets that better matches the downlink channel quality of the target terminal, and then calibrate the second antenna of the cooperative TRP according to the target calibration weight set. This reduces the impact of delay or phase deviation of the signals transmitted by the cooperative TRP and the serving TRP on the downlink channel quality of the target terminal, improving the performance gain of multi-TRP cooperative communication.

[0117] In one possible implementation, the above method 600 further includes:

[0118] Receive the second channel state information reference signal sent by the serving TRP and the cooperating TRP;

[0119] The resources corresponding to the second channel state information reference signal are measured to determine the precoding matrix indicator;

[0120] The precoding matrix indicator is sent to the serving TRP, so that the serving TRP precodes the service channel data to be transmitted according to the precoding matrix indicator.

[0121] In this embodiment of the application, the target terminal measures the resources corresponding to the second CSI-RS and reports the optimal cri-RI-PMI-CQI to the serving TRP. The cri-RI-PMI-CQI includes a precoding matrix index (PMI), which is the coherent beamforming weight between cells.

[0122] In one possible implementation, prior to receiving the second channel state information reference signal sent by the serving TRP and the cooperating TRP, the method further includes:

[0123] The system receives second CSI-RS resource configuration information and second CSI feedback configuration information sent by the serving TRP for PMI reporting. The second CSI-RS resource configuration information instructs the target terminal to receive CSI-RS resources, and the second CSI feedback configuration information instructs the target terminal to measure the received CSI-RS resources and then feed back a precoding matrix indicator (PMI). This ensures that the target terminal, upon receiving the second CSI-RS sent by the serving TRP and the cooperating TRP, measures the resources corresponding to the second CSI-RS and then feeds back a precoding matrix indicator.

[0124] Please see Figure 7 , Figure 7This illustration shows a structural schematic diagram of a TRP device according to an embodiment of this application. The TRP device 700 can achieve the following: Figure 1 The TRP device 700, as shown in the embodiment, includes all or part of the following:

[0125] The first sending module 710 is used to send multiple candidate calibration weight groups to the cooperating TRP, so that the cooperating TRP, in conjunction with the serving TRP, sends the first channel state information reference signal corresponding to the multiple candidate calibration weight groups to the target terminal.

[0126] The second sending module 720 is used to send the first channel state information reference signal corresponding to the plurality of candidate weight groups to the target terminal;

[0127] The determining module 730 is used to determine the target calibration weight group among the multiple candidate calibration weight groups based on the RSRP resource indication information fed back by the target terminal based on the first channel state information reference signal;

[0128] The third transmitting module 740 is used to transmit the target calibration weight set to the cooperative TRP so that the cooperative TRP calibrates the second antenna of the cooperative TRP according to the target calibration weight set.

[0129] Among them, the candidate calibration weight group includes the second calibration weight;

[0130] The second calibration weight is the calibration weight corresponding to the second antenna of the cooperative TRP; wherein, the second calibration weight is determined based on the first calibration weight corresponding to the first antenna of the serving TRP and the target phase difference, and the target phase difference is the phase difference of the second antenna relative to the first antenna.

[0131] In one possible implementation, the aforementioned TRP device 700 further includes:

[0132] The fifth transmitting module is used to transmit the second channel state information reference signal corresponding to the target calibration weight group to the target terminal;

[0133] The receiving module is used to receive the precoding matrix indicator fed back by the target terminal based on the second channel state information reference signal;

[0134] The first precoding module is used to precode the service channel data to be transmitted according to the target calibration weight group and the precoding matrix indicator.

[0135] In one possible implementation, the aforementioned TRP device 700 further includes:

[0136] The sixth transmission module is used to transmit the precoding matrix indicator and the service channel data to the cooperative TRP, so that the cooperative TRP precodes the service channel data according to the target calibration weight set and the precoding matrix indicator.

[0137] Please see Figure 8 , Figure 8 This application provides a schematic diagram of the structure of another TRP device according to an embodiment; the TRP device 700 can achieve the following: Figure 5 The TRP device 800, as shown in the embodiment, includes all or part of the following:

[0138] The first transceiver module 810 is used to receive multiple candidate calibration weight groups sent by the serving TRP;

[0139] Send first channel state information reference signals corresponding to multiple candidate calibration weight groups to the target terminal;

[0140] Receive a target candidate calibration weight group from a plurality of candidate calibration weight groups sent by the serving TRP; wherein the target candidate calibration weight group is determined by the serving TRP according to the RSRP resource indication information fed back by the target terminal;

[0141] The calibration module 820 is used to calibrate the second antenna of the cooperative TRP according to the target candidate calibration weight set.

[0142] In one possible implementation, the aforementioned TRP device 800 further includes:

[0143] The third transceiver module is used to send the second channel state information reference signal corresponding to the target calibration weight group to the target terminal;

[0144] The system receives a precoding matrix indicator and service channel data sent by the serving TRP; wherein the precoding matrix indicator is fed back by the target terminal in response to the received second channel state information reference signal.

[0145] The second precoding module is used to precode the traffic channel data according to the target calibration weight group and the precoding matrix indicator.

[0146] Specifically, when the third transceiver module sends the second channel state information reference signal corresponding to the target calibration weight group to the target terminal, it is used for:

[0147] The second antenna of the cooperative TRP is shaped according to the plurality of candidate calibration weight groups, and the second channel state information reference signal is sent to the target terminal through the shaped second antenna.

[0148] Please see Figure 9 , Figure 9 This illustration shows a structural diagram of a terminal provided in an embodiment of this application; the terminal 900 can achieve the following: Figure 6 The terminal 900, comprising all or part of the contents shown in the embodiment, includes:

[0149] The second transceiver module 910 is used to receive multiple sets of first channel state information reference signals sent by the serving TRP and the cooperating TRP; wherein each set of first channel state information reference signals corresponds to a candidate calibration weight set, and the candidate calibration weight set is any one of multiple candidate calibration weight sets.

[0150] The RSRP resource indication information is sent to the serving TRP, so that the serving TRP determines the target calibration weight group among the plurality of candidate calibration weight groups based on the RSRP resource indication information;

[0151] The measurement module 920 is used to measure the RSRP of the resources corresponding to the multiple sets of first channel state information reference signals, and determine the RSRP resource indication information corresponding to the target RSRP among the multiple RSRPs.

[0152] Please see Figure 10 , Figure 10 This illustration shows a schematic diagram of a multi-transmitter-receiver point (TRP) cooperative communication system according to an embodiment of this application. The multi-transmitter-receiver point (TRP) cooperative communication system includes a base station and a user terminal. The base station has a serving TRP corresponding to the serving cell and a cooperative TRP corresponding to the cooperating cell, used to issue CSI-RS resource configuration and CSI feedback configuration for L1-RSRP reporting and PMI reporting to the terminal; receive channel measurement feedback cri-RSRP and cri-RI-PMI-CQI from the terminal, obtain target calibration weight groups between cells, and perform coherent shaping and transmission of service channel data; the terminal measures CSI-RS and feeds back the measured CSI to the base station.

[0153] The base station includes a resource allocation module, a third transceiver module, a decision module, and a cooperation module. The resource allocation module is used to allocate CSI-RS resources for L1-RSRP reporting and PMI reporting to the terminal. The third transceiver module is used to transmit CSI signals, downlink service channel data, and receive channel measurement feedback cri-RSRP and cri-RI-PMI-CQI from the terminal. The decision module is used to obtain the target calibration weight set between cells based on the cri-RSRP reported by the terminal. The cooperation module is used to coherently shape the service channel based on the cri-RI-PMI-CQI reported by the terminal and the target calibration weight set.

[0154] The user terminal includes a fourth transceiver module and a second measurement module; the fourth transceiver module is used to receive CSI-RS measurements and CSI feedback configurations and downlink service channel data sent by the base station, and to transmit channel measurements cri-RSRP and cri-RI-PMI-CQI to the base station; the second measurement module is used to measure downlink channel quality.

[0155] In this way, the base station can obtain a target calibration weight set that is more compatible with the downlink channel quality of the target terminal, and then calibrate the second antenna of the cooperative TRP according to the target calibration weight set. This can reduce the impact of the delay or phase deviation of the signals transmitted by the cooperative TRP and the serving TRP on the downlink channel quality of the target terminal and improve the performance gain of multi-TRP cooperative communication.

[0156] Figure 11 This diagram illustrates the hardware structure of an electronic device implementing the embodiments of this application. Referring to the diagram, at the hardware level, the electronic device includes a processor and optionally, an internal bus, a network interface, and a memory. The memory may include RAM, such as high-speed random-access memory (RAM), or non-volatile memory, such as at least one disk storage device. Of course, the electronic device may also include other hardware required for other services.

[0157] The processor, network interface, and memory can be interconnected via an internal bus, which can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. This bus can be categorized as an address bus, data bus, control bus, etc. For ease of illustration, only a single bidirectional arrow is used in this diagram, but this does not imply that there is only one bus or one type of bus.

[0158] Memory stores programs. Specifically, programs may include program code, which includes computer operation instructions. Memory may include main memory and non-volatile memory, and provides instructions and data to the processor.

[0159] The processor reads the corresponding computer program from non-volatile memory into main memory and then runs it, logically forming a device that locates the target user. The processor executes the program stored in memory and specifically performs the following: Figure 1 or Figure 5 orFigure 6 The methods disclosed in the embodiments shown achieve the functions and beneficial effects of the methods described in the preceding method embodiments, and will not be repeated here.

[0160] The above is as stated in this application. Figure 1 or Figure 5 or Figure 6 The methods disclosed in the illustrated embodiments can be implemented in or by a processor. The processor may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module can reside in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0161] The computer device can also execute the methods described in the preceding method embodiments and achieve the functions and beneficial effects of the methods described in the preceding method embodiments, which will not be repeated here.

[0162] Of course, in addition to software implementation, the electronic device of this application does not exclude other implementation methods, such as logic devices or a combination of hardware and software, etc. In other words, the execution subject of the following processing flow is not limited to each logic unit, but can also be hardware or logic devices.

[0163] This application also proposes a computer-readable storage medium that stores one or more programs, which, when executed by an electronic device including multiple applications, cause the electronic device to perform... Figure 1 or Figure 5 or Figure 6 The methods disclosed in the embodiments shown achieve the functions and beneficial effects of the methods described in the preceding method embodiments, and will not be repeated here.

[0164] The computer-readable storage medium includes read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks, etc.

[0165] Furthermore, embodiments of this application also provide a computer program product, the computer program product including a computer program stored on a non-transitory computer-readable storage medium, the computer program including program instructions, which, when executed by a computer, implement the following process: Figure 1 or Figure 5 or Figure 6 The methods disclosed in the embodiments shown achieve the functions and beneficial effects of the methods described in the preceding method embodiments, and will not be repeated here.

[0166] The embodiments of this application can be applied to various scenarios of electronic device collaboration or interconnection, including: collaboration and interconnection between mobile phones and laptops / tablets; collaboration and interconnection between mobile terminals and smart TVs / monitors; collaboration and interconnection between mobile phones or tablets and in-vehicle entertainment systems; collaboration and interconnection between mobile terminals and smart conferencing systems, etc. This satisfies users' diverse needs in smart home, smart office, and smart travel scenarios.

[0167] In summary, the above description is merely a preferred embodiment of this application and does not limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

[0168] The systems, devices, modules, or units described in the above embodiments can be implemented by computer chips or entities, or by products with certain functions. A typical implementation device is a computer. Specifically, a computer can be, for example, a personal computer, laptop computer, cellular phone, camera phone, smartphone, personal digital assistant, media player, navigation device, email device, game console, tablet computer, wearable device, or any combination of these devices.

[0169] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can store information accessible to a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0170] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0171] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

Claims

1. A method for cooperative communication among multiple sender-receiver points (TRPs), applied to a serving TRP, characterized in that, include: Multiple candidate calibration weight groups are sent to the cooperating TRP, so that the cooperating TRP, in conjunction with the serving TRP, sends the first channel state information reference signal corresponding to the multiple candidate calibration weight groups to the target terminal. Send the first channel state information reference signal corresponding to the plurality of candidate calibration weight groups to the target terminal; Based on the RSRP resource indication information fed back by the target terminal based on the first channel state information reference signal, the target calibration weight group among the multiple candidate calibration weight groups is determined; The target calibration weight set is sent to the cooperative TRP so that the cooperative TRP calibrates its second antenna according to the target calibration weight set.

2. The method according to claim 1, characterized in that, The candidate calibration weight set includes a second calibration weight; The second calibration weight is the calibration weight corresponding to the second antenna of the cooperative TRP; wherein, the second calibration weight is determined based on the first calibration weight corresponding to the first antenna of the serving TRP and the target phase difference, and the target phase difference is the phase difference of the second antenna relative to the first antenna.

3. The method according to claim 1, characterized in that, Also includes: Send the second channel state information reference signal corresponding to the target calibration weight group to the target terminal; Receive the precoding matrix indicator fed back by the target terminal based on the second channel state information reference signal; The service channel data to be transmitted is precoded according to the target calibration weight set and the precoding matrix indicator.

4. The method according to claim 3, characterized in that, Also includes: The precoding matrix indicator and the traffic channel data are sent to the cooperative TRP so that the cooperative TRP precodes the traffic channel data according to the target calibration weight set and the precoding matrix indicator.

5. A method for cooperative communication in a multi-transmitter / receiver TRP, applied to a cooperative TRP, characterized in that, include: Receive multiple candidate calibration weight groups sent by the service TRP; Send first channel state information reference signals corresponding to multiple candidate calibration weight groups to the target terminal; The system receives a target calibration weight group from among multiple candidate calibration weight groups sent by the serving TRP; wherein the target calibration weight group is determined by the serving TRP based on RSRP resource indication information fed back by the target terminal. The second antenna of the cooperative TRP is calibrated according to the target calibration weight set.

6. The method according to claim 5, characterized in that, Also includes: Send the second channel state information reference signal corresponding to the target calibration weight group to the target terminal; The system receives a precoding matrix indicator and service channel data sent by the serving TRP; wherein the precoding matrix indicator is fed back by the target terminal in response to the received second channel state information reference signal. The traffic channel data is precoded according to the target calibration weight set and the precoding matrix indicator.

7. The method according to claim 6, characterized in that, Sending the second channel state information reference signal corresponding to the target calibration weight group to the target terminal includes: The second antenna of the cooperative TRP is shaped according to the target calibration weight set, and the second channel state information reference signal is sent to the target terminal through the shaped second antenna.

8. A method for multi-transmitter / receiver point (TRP) cooperative communication, applied to a target terminal, characterized in that, include: Receive multiple sets of first channel state information reference signals sent by the serving TRP and the cooperating TRP; wherein each set of first channel state information reference signals corresponds to a candidate calibration weight set, and the candidate calibration weight set is any one of multiple candidate calibration weight sets; The RSRP of the resources corresponding to the multiple sets of first channel state information reference signals is measured to determine the RSRP resource indication information corresponding to the target RSRP among the multiple RSRPs; the RSRP resource indication information is sent to the serving TRP so that the serving TRP determines the target calibration weight group among the multiple candidate calibration weight groups based on the RSRP resource indication information.

9. The method according to claim 8, characterized in that, Also includes: Receive the second channel state information reference signal sent by the serving TRP and the cooperating TRP; The resources corresponding to the second channel state information reference signal are measured to determine the precoding matrix indicator; The precoding matrix indicator is sent to the serving TRP, so that the serving TRP precodes the service channel data to be transmitted according to the precoding matrix indicator.

10. A service TRP device, characterized in that, include: The first sending module is used to send multiple candidate calibration weight groups to the cooperating TRP, so that the cooperating TRP, in conjunction with the serving TRP, sends the first channel state information reference signal corresponding to the multiple candidate calibration weight groups to the target terminal. The second transmitting module is used to transmit the first channel state information reference signal corresponding to the plurality of candidate calibration weight groups to the target terminal; The determination module is used to determine the target calibration weight group among the multiple candidate calibration weight groups based on the RSRP resource indication information fed back by the target terminal based on the first channel state information reference signal; The third transmitting module is used to transmit the target calibration weight set to the cooperative TRP, so that the cooperative TRP calibrates the second antenna of the cooperative TRP according to the target calibration weight set.

11. A collaborative TRP device, characterized in that, include: The first transceiver module is used to receive multiple candidate calibration weight groups sent by the serving TRP; Send first channel state information reference signals corresponding to multiple candidate calibration weight groups to the target terminal; Receive a target candidate calibration weight group from a plurality of candidate calibration weight groups sent by the serving TRP; wherein the target candidate calibration weight group is determined by the serving TRP according to the RSRP resource indication information fed back by the target terminal; A calibration module is used to calibrate the second antenna of the cooperative TRP according to the target candidate calibration weight set.

12. A terminal, characterized in that, include: The second transceiver module is used to receive multiple sets of first channel state information reference signals sent by the serving TRP and the cooperating TRP; wherein each set of first channel state information reference signals corresponds to a candidate calibration weight set, and the candidate calibration weight set is any one of multiple candidate calibration weight sets; The measurement module is used to measure the RSRP of the resources corresponding to the multiple sets of first channel state information reference signals, and determine the RSRP resource indication information corresponding to the target RSRP among the multiple RSRPs; The second transceiver module is further configured to send the RSRP resource indication information to the serving TRP, so that the serving TRP determines the target calibration weight group among the plurality of candidate calibration weight groups based on the RSRP resource indication information.

13. An electronic device, characterized in that, The electronic device includes a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the method of multi-transmitter-receiver point (TRP) cooperative communication as claimed in any one of claims 1 to 4, or the steps of the method of multi-transmitter-receiver point (TRP) cooperative communication as claimed in any one of claims 5 to 7, or the steps of the method of multi-transmitter-receiver point (TRP) cooperative communication as claimed in any one of claims 8 to 9.

14. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the method for multi-transmitter-receiver point (TRP) cooperative communication as claimed in any one of claims 1 to 4, or the steps of the method for multi-transmitter-receiver point (TRP) cooperative communication as claimed in any one of claims 5 to 7, or the steps of the method for multi-transmitter-receiver point (TRP) cooperative communication as claimed in any one of claims 8 to 9.

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