Method and device for updating TRP (Transmit Reception Point)

Abstract

The invention provides a TRP updating method and device, and relates to the technical field of communication, according to the TRP updating method provided by the embodiment of the invention, network side equipment sends configuration information and a reference signal to terminal equipment, the configuration information is used for the terminal equipment to measure the reference signal, and the reference signal is used for the terminal equipment to measure the reference signal. Obtaining a channel measurement result; and the network side equipment determines whether to update the TRP cluster and the TRP set corresponding to the terminal equipment according to the channel measurement result sent by the terminal equipment. The problems that in an existing multi-node cooperative network architecture, the communication quality of edge users is poor, and frequent cell switching is needed can be solved.

Description

Transmission Reception Point TRP Update Method and Device Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a method and device for updating a transmission reception point (TRP). Background Art

[0002] With the continuous development of wireless communications, the requirements for communication capabilities are becoming increasingly higher. For future application scenarios such as augmented reality (AR) and virtual reality (VR), the Internet of Vehicles (IoV), and the Internet of Things (IoT), ultra-high-speed, ultra-low-latency, and ultra-large-bandwidth communications will become the norm. To meet this requirement, a growing number of new technologies are being proposed. Multiple Input Multiple Output (MIMO) technology has ushered in a new era in the development and utilization of spatial resources in mobile communication systems. MIMO brings network equipment close to the terminal. Structurally, no matter where the terminal moves, there will be some nearby Transmit and Receive Points (TRPs) to serve it. Therefore, a multi-node collaborative transmission network architecture is needed to serve terminal devices.

[0003] However, traditional multi-node collaborative network architectures (such as cellular cell architectures) are only used during the service data transmission phase and lack robustness optimization for the access phase and handover process. To achieve distributed collaborative transmission, terminals must first access / handover to the network before collaborative transmission can be performed on the service channel. This makes it difficult to ensure a consistent user experience for edge users, resulting in poor communication quality and the need for frequent cell handovers.

[0004] Summary of the Invention

[0005] The present disclosure provides a method and device for updating a transmission reception point (TRP), which can solve the problems of poor communication quality of edge users and the need for frequent cell switching in the existing multi-node collaborative network architecture.

[0006] A first aspect of the present disclosure provides a method for updating a transmission reception point (TRP), which is applied to a network-side device. The method includes:

[0007] Sending configuration information and a reference signal to a terminal device, where the configuration information is used by the terminal device to measure the reference signal to obtain a channel measurement result;

[0008] According to the channel measurement result sent by the terminal device, determine whether to update the transmission reception point TRP cluster and TRP set corresponding to the terminal device.

[0009] In some embodiments of the present disclosure, before sending the configuration information to the terminal device, the method further includes at least one of the following:

[0010] Determine a TRP set corresponding to the terminal device, where the TRP set includes a first TRP set and a second TRP set, wherein the first TRP set includes one or more TRPs in a serving TRP cluster, where the serving TRP cluster is a TRP cluster that currently provides a connection service for the terminal device, and the second TRP set includes one or more TRPs in a measuring TRP cluster, where the measuring TRP cluster is a TRP cluster adjacent to the serving TRP cluster;

[0011] Determine the configuration information of the terminal device corresponding to the TPR set, the configuration information including first configuration information and second configuration information, wherein the first configuration information is used by the terminal device to perform a first reference signal measurement of the first TRP set, and the second configuration information is used by the terminal device to perform a second reference signal measurement of the second TRP set.

[0012] In some embodiments of the present disclosure, the first configuration information includes at least one of the following:

[0013] QCL information of the first reference signal, wherein the QCL information includes one or more QCL relationships;

[0014] first measurement information of the first reference signal, wherein the first measurement information includes a reference signal type, a resource configuration, and a measurement amount;

[0015] The reporting configuration of the first reference signal includes any one of periodic reporting, semi-periodic reporting, and aperiodic reporting.

[0016] In some embodiments of the present disclosure, the second configuration information includes at least one of the following:

[0017] The measurement TRP cluster ID to which the second TRP in the second TRP set belongs;

[0018] QCL information of the second reference signal, wherein the QCL information includes one or more QCL relationships;

[0019] second measurement information of the second reference signal, wherein the second measurement information includes a frequency, a reference signal type, a resource configuration, and a measurement amount;

[0020] The reporting configuration of the second reference signal includes any one of periodic reporting, semi-periodic reporting, and aperiodic reporting.

[0021] In some embodiments of the present disclosure, sending configuration information and a reference signal to a terminal device includes:

[0022] sending the first configuration information and the second configuration information to the terminal device; and

[0023] The first reference signal and the second reference signal are sent to the terminal device.

[0024] In some embodiments of the present disclosure, the configuration information further includes a reporting configuration for the channel measurement result, the channel measurement result includes a first channel measurement result and a second channel measurement result, and the method further includes:

[0025] Receive the first channel measurement result and the second channel measurement result sent by the terminal device according to the reporting configuration, wherein the first channel measurement result is obtained by the terminal device measuring the first reference signal according to the first configuration information, and the second channel measurement result is obtained by the terminal device measuring the second reference signal according to the second configuration information.

[0026] In some embodiments of the present disclosure, determining whether to update the TRP cluster and TRP set corresponding to the terminal device according to the channel measurement result sent by the terminal device includes:

[0027] determining, based on the first channel measurement result, whether a TRP in the first TRP set meets a data transmission condition of the terminal device;

[0028] In response to a TRP in the first TRP set not satisfying the data transmission condition, not updating the serving TRP cluster, but updating the first TRP set using the TRP in the serving TRP cluster; and / or

[0029] In response to the TRP in the first TRP set not meeting the data transmission condition, based on the second channel measurement result, the service TRP cluster and the first TRP set are updated using the TRP in the measurement TRP cluster, and the measurement TRP cluster and the second TRP set are updated based on the updated service TRP cluster.

[0030] In some embodiments of the present disclosure, in response to a TRP in the first TRP set not meeting the data transmission condition, the method further includes:

[0031] Sending updated configuration information to the terminal device, where the updated configuration information includes at least one of the following:

[0032] The service TRP cluster ID corresponding to the first TRP set;

[0033] The measurement TRP cluster ID corresponding to the second TRP set;

[0034] first configuration information of the first TRP set;

[0035] Second configuration information of the second TRP set.

[0036] In some embodiments of the present disclosure, determining whether to update the TRP cluster and TRP set corresponding to the terminal device according to the channel measurement result sent by the terminal device includes:

[0037] In response to the TRP in the first TRP set satisfying the data transmission requirement of the terminal device, the service TRP cluster, the measurement TRP cluster, the first TRP set and the second TRP set are not updated.

[0038] A second aspect of the present disclosure provides a method for updating a transmission reception point (TRP), which is applied to a terminal device. The method includes:

[0039] Receive configuration information and reference signals sent by network-side devices;

[0040] measuring the reference signal according to the configuration information to obtain a channel measurement result;

[0041] The channel measurement result is sent to the network side device, so that the network side device determines whether to update the TRP cluster and TRP set corresponding to the terminal device according to the channel measurement result.

[0042] In some embodiments of the present disclosure, the configuration information includes first configuration information and second configuration information, and receiving the configuration information sent by the network-side device includes:

[0043] Receive first configuration information of a first TRP set sent by the network side device, where the first TRP set includes one or more TRPs in a serving TRP cluster, where the serving TRP cluster is a TRP cluster currently providing a connection service for the terminal device, and the first configuration information is used to perform a first reference signal measurement and a first channel measurement result report;

[0044] Receive the second configuration information of the second TRP set sent by the network side device, the second TRP set includes one or more TRPs in the measurement TRP cluster, the measurement TRP cluster is a TRP cluster adjacent to the service TRP cluster, and the second configuration information is used to perform a second reference signal measurement and report the second channel measurement results.

[0045] In some embodiments of the present disclosure, the first configuration information includes at least one of the following:

[0046] QCL information of the first reference signal, the QCL information comprising one or more QCL relationships;

[0047] first measurement information of the first reference signal, the first measurement information including a reference signal type, a resource configuration, and a measurement amount;

[0048] The reporting configuration of the first reference signal includes any one of periodic reporting, semi-periodic reporting, and aperiodic reporting.

[0049] In some embodiments of the present disclosure, the second configuration information includes at least one of the following:

[0050] The measurement TRP cluster ID to which the second TRP in the second TRP set belongs;

[0051] QCL information of the second reference signal, the QCL information comprising one or more QCL relationships;

[0052] second measurement information of the second reference signal, the second measurement information including a frequency, a reference signal type, a resource configuration, and a measurement amount;

[0053] The reporting configuration of the second reference signal includes any one of periodic reporting, semi-periodic reporting, and aperiodic reporting.

[0054] In some embodiments of the present disclosure, the receiving a reference signal sent by the network-side device includes:

[0055] Receive a first reference signal and a second reference signal sent by the network-side device.

[0056] In some embodiments of the present disclosure, measuring the reference signal according to the configuration information to obtain a channel measurement result includes:

[0057] Measuring the first reference signal according to the first measurement configuration information to obtain a first channel measurement result; and

[0058] The second reference signal is measured according to the second measurement configuration information to obtain a second channel measurement result.

[0059] In some embodiments of the present disclosure, sending the channel measurement result to the network-side device includes:

[0060] Sending the first channel measurement result and the second channel measurement result to the network side device.

[0061] In some embodiments of the present disclosure, the method further includes:

[0062] Receive updated configuration information sent by the network-side device, where the updated configuration information includes at least one of the following:

[0063] The service TRP cluster ID corresponding to the first TRP set;

[0064] The measurement TRP cluster ID corresponding to the second TRP set;

[0065] first configuration information of the first TRP set;

[0066] Second configuration information of the second TRP set.

[0067] A third embodiment of the present disclosure provides a transmission reception point (TRP) updating device, which is applied to a network-side device. The device includes:

[0068] A sending module, configured to send configuration information to a terminal device, wherein the configuration information is used by the terminal device to perform reference signal measurement and channel measurement result reporting;

[0069] The sending module is further configured to send a reference signal to the terminal device, where the reference signal is used by the terminal device to perform channel measurement;

[0070] A processing module is used to determine whether to update the transmission reception point TRP cluster and TRP set corresponding to the terminal device based on the channel measurement result sent by the terminal device.

[0071] A fourth embodiment of the present disclosure provides a transmission reception point (TRP) updating device, which is applied to a terminal device. The device includes:

[0072] A receiving module, configured to receive configuration information sent by a network-side device, wherein the configuration information is used by the terminal device to perform reference signal measurement and channel measurement result reporting;

[0073] The receiving module is further configured to receive a reference signal sent by the network side device, where the reference signal is used by the terminal device to perform channel measurement;

[0074] a processing module, configured to measure the reference signal according to the configuration information to obtain a channel measurement result;

[0075] The sending module is used to send the channel measurement result to the network side device, so that the network side device determines whether to update the TRP cluster and TRP set corresponding to the terminal device according to the channel measurement result.

[0076] The fifth aspect embodiment of the present disclosure provides a communication device, which includes: a transceiver; a memory; a processor, which is connected to the transceiver and the memory respectively, and is configured to control the wireless signal reception and transmission of the transceiver by executing computer-executable instructions on the memory, and can implement the method of the first aspect embodiment or the second aspect embodiment of the present disclosure.

[0077] The sixth aspect embodiment of the present disclosure provides a computer storage medium, wherein the computer storage medium stores computer-executable instructions; after the computer-executable instructions are executed by a processor, the method of the first aspect embodiment or the second aspect embodiment of the present disclosure can be implemented.

[0078] The seventh aspect embodiment of the present disclosure provides a communication system, which includes a network side device and a terminal device, wherein: the network side device is configured to execute the method of the first aspect embodiment of the present disclosure; the terminal device is configured to execute the method of the second aspect embodiment of the present disclosure.

[0079] The embodiments of the present disclosure provide a method and apparatus for updating a transmission receiving point TRP. The network side device can send configuration information and a reference signal to the terminal device, so that the terminal device measures the reference signal according to the configuration information and obtains a channel measurement result. The network side device can update the corresponding TRP cluster and TRP set for the terminal device according to the channel measurement result of the terminal device, so that the TRP cluster and TRP set configured by the terminal device can be updated as the terminal device moves and the channel conditions change. During the distributed transmission process, the terminal device does not need to switch cells. The network side device updates the TRP cluster corresponding to the terminal device, and uses multiple TRPs in the TRP cluster to serve the terminal device, which can ensure the communication quality of edge users and meet the high-speed and high-capacity service requirements of the terminal device.

[0080] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0082] FIG1 is a schematic flow chart of a method for updating a transmission reception point TRP according to an embodiment of the present disclosure;

[0083] FIG2 is a schematic diagram of a user-centric network architecture according to an embodiment of the present disclosure;

[0084] FIG3 is a flow chart of a method for updating a transmission reception point TRP according to an embodiment of the present disclosure;

[0085] FIG4 is a flow chart of a method for updating a transmission reception point TRP according to an embodiment of the present disclosure;

[0086] FIG5 is a flow chart of a method for updating a transmission reception point TRP according to an embodiment of the present disclosure;

[0087] FIG6 is a flow chart of a method for updating a transmission reception point TRP according to an embodiment of the present disclosure;

[0088] FIG7 is a flow chart of a method for updating a transmission reception point TRP according to an embodiment of the present disclosure;

[0089] FIG8 is a flow chart of a method for updating a transmission reception point TRP according to an embodiment of the present disclosure;

[0090] FIG9 is a timing diagram of a method for updating a transmission reception point TRP according to an embodiment of the present disclosure;

[0091] FIG10 is a block diagram of a device for updating a transmission reception point TRP according to an embodiment of the present disclosure;

[0092] FIG11 is a block diagram of a transmission reception point TRP updating device according to an embodiment of the present disclosure;

[0093] FIG12 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure;

[0094] FIG13 is a schematic structural diagram of a chip provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0095] The following describes in detail embodiments of the present disclosure, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0096] With the continuous development of wireless communications, the demand for communication capabilities is increasing. For future applications such as augmented reality (AR) and virtual reality (VR), the Internet of Vehicles (IoV), and the Internet of Things (IoT), ultra-high-speed, ultra-low-latency, and ultra-large-bandwidth communications will become the norm. To meet these requirements, a growing number of new technologies are being proposed. Multiple-Input Multiple-Output (MIMO) technology has ushered in a new era in the development and utilization of spatial resources in mobile communication systems. Distributed MIMO can not only be applied to single-cell cellular base station systems, but can also replace multi-cell cellular base stations. Distributed MU-MIMO forms a cell-free mobile communication system, also known as cell-free technology. Cell-free technology can provide services to all users using the same time-frequency resources, eliminating the need for traditional inter-cell frequency division. System resources can be dynamically scheduled in all aspects. This improves the flexibility of existing system resource allocation and significantly increases resource utilization. For user equipment (UE), distributed MIMO technology means that multiple base stations can serve them simultaneously, eliminating cell handovers. The concept of cell boundaries is eliminated, resulting in a smoother user experience. In addition, multiple Transmit and Receive Points (TRPs) serve one terminal, which better guarantees the signal quality and can meet the terminal's high-speed and high-capacity business needs.

[0097] Distributed ultra-massive MIMO brings network equipment closer to the terminal. Structurally, no matter where the terminal moves, there will be some nearby TRPs serving it, truly realizing a user-centric network structure. Therefore, the network protocols and architecture design above the physical layer must also be compatible. A multi-node collaborative transmission network architecture is required to serve terminal devices.

[0098] However, traditional multi-node collaborative network architectures (such as cellular cell architectures) are only used during the service data transmission phase and lack robustness optimization for the access phase and handover process. To achieve distributed collaborative transmission, terminals must first access / handover to the network before collaborative transmission can be performed on the service channel. This makes it difficult to ensure a consistent user experience for edge users, resulting in poor communication quality and the need for frequent cell handovers.

[0099] To this end, the present disclosure proposes a method and device for updating the transmission receiving point TRP, and can propose a user-centric distributed TRP networking solution. By configuring a unique TRP cluster for the UE, and the TRP cluster can be updated as the user moves and the channel conditions change, it can solve the problems of poor communication quality of edge users and the need for frequent cell switching in the existing multi-node collaborative network architecture.

[0100] The following is a detailed introduction to the transmission reception point TRP updating method and device provided in this application in conjunction with the accompanying drawings.

[0101] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0102] The terms used in the embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present disclosure. The singular forms "a," "an," and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0103] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0104] Figure 1 shows a method for updating a transmission receiving point TRP according to an embodiment of the present disclosure. As shown in Figure 1, the method is applied to a network side device. As shown in Figure 2, the network side device may include a TRP cluster, a centralized unit (CU) and a core network (CN). Among them, the TRP cluster is a set of multiple TRPs configured by the network side for the UE. The set is unique to the UE. Some or all of the multiple TRPs included in the TRP cluster are used to transmit data to the UE or receive data from the UE; the CU is generally connected to multiple TRPs through optical fibers, and the information of each TRP is aggregated to the central controller to coordinate the scheduling of wireless resources. Different CUs exchange information through optical fibers or core networks. Among them, the method for updating the transmission receiving point TRP may include the following steps:

[0105] Step 101: Send configuration information and reference signals to a terminal device.

[0106] Among them, the configuration information may include measurement parameters for the terminal device to measure the reference signal and the reporting configuration for the terminal device to report the channel measurement results. The measurement parameters may include the number of transmissions of the reference signal, transmission resources, frequency points, and measurement quantities, etc. The reporting configuration may include any one of periodic reporting, semi-periodic reporting, and non-periodic reporting. By sending configuration information and reference signals to the terminal device, the network side device can enable the terminal device to measure the reference signal according to the measurement parameters in the configuration information and obtain the channel measurement results. After obtaining the channel measurement results, the terminal device can also report the measured channel measurement results according to the reporting configuration in the configuration information. The channel measurement results are used to reflect the data transmission quality of the corresponding configured TRP cluster and TRP set of the terminal device, that is, the channel quality.

[0107] It should be noted that the network side device can send configuration information and reference signals to the terminal device at the same time, or can send configuration information to the terminal device and then send the reference signal to the terminal device. Here, there is no specific limitation on the order of sending configuration information and reference signals.

[0108] Step 102: Determine whether to update the transmission reception point TRP cluster and / or TRP set corresponding to the terminal device based on the channel measurement result sent by the terminal device.

[0109] Among them, the transmission receiving point TRP cluster corresponding to the terminal device may include a service TRP cluster and a measurement TRP cluster, and the TRP set may include a first TRP set and a second TRP set. The service TRP cluster is the TRP cluster that currently provides connection services for the terminal device, and the measurement TRP cluster is the TRP cluster adjacent to the service TRP cluster. The first TRP set, as a subset of the service TRP cluster, may include all or part of the TRPs in the service TRP cluster. The second TRP set, as a subset of the measurement TRP cluster, may include all or part of the TRPs in one or more measurement TRP clusters. The same TRP cluster uses the same set of system messages to achieve distributed collaborative transmission of terminal devices.

[0110] For the embodiments of the present disclosure, it can be determined whether the first TRP set can provide data transmission services for the terminal device based on the channel measurement results. When the first TRP set cannot provide data transmission services for the terminal device, the current service TRP cluster can be used to update the first TRP set. If the first TRP set includes all TRPs in the current service TRP cluster, it can be said that the current service TRP cluster is also unable to provide data transmission services for the terminal device. When the current service TRP cluster and the first TRP set cannot provide data transmission services for the terminal device, the measurement TRP cluster and the second TRP set can be used to assist in updating the service TRP cluster and the first TRP set. For example, the network side device can change the TRP in the measurement TRP cluster with stronger signal transmission capability for the terminal device in the second TRP set to the TRP in the service TRP cluster and the first TRP set based on the channel measurement results, and use the changed TRP to continue to provide data transmission services for the terminal device.

[0111] In a specific application scenario, as shown in FIG2 , for each terminal device UE, the network-side device can configure a dedicated TRP cluster for it. The TRP that transmits data for the UE can be selected from the TRP cluster. As the user moves and the channel conditions change, the number of TRPs included in the TRP cluster can change, and the TRP cluster to which the UE belongs can also change. In addition, in the network architecture corresponding to FIG2 , the same TRP can be connected to multiple CUs. For the embodiment of the present disclosure, by analyzing the channel measurement results obtained by the terminal device based on the configuration information, it can be determined whether the first TRP set has a better data transmission quality under the current mobility state and channel conditions of the terminal device. If it is determined that the transmission state of the TRP in the first TRP set for the terminal device is not good and cannot meet the data transmission conditions of the terminal device, it is necessary to update the first TRP set, or the current service TRP cluster can be updated to ensure the data transmission quality of the terminal device. In addition, after the service TRP cluster is updated, the measurement TRP cluster and the second TRP cluster can be further updated based on the updated service TRP cluster, so that the updated measurement TRP cluster and the second TRP cluster can be used to assist in the subsequent update of the service TRP cluster and the first TRP cluster. Among them, the data transmission condition may be that the TRP in the first TRP set satisfies the channel capacity maximization or resource utilization maximization, or it may also be that in the TRP in the first TRP set, the terminal device's reception quality of the reference signal is less than a preset threshold, etc. The data transmission condition is not specifically limited here.

[0112] In summary, according to a method for updating a transmission receiving point TRP provided by the present disclosure, the network side device can send configuration information and a reference signal to the terminal device, so that the terminal device measures the reference signal according to the configuration information to obtain a channel measurement result. The network side device can update the corresponding TRP cluster and TRP set for the terminal device according to the channel measurement result of the terminal device, so that the TRP cluster and TRP set configured by the terminal device can be updated as the terminal device moves and the channel conditions change. There is no cell switching in the distributed transmission process. The network side device updates the TRP cluster corresponding to the terminal device, and uses multiple TRPs in the TRP cluster to serve the terminal device, which can ensure the communication quality of edge users and meet the high-speed and high-capacity service requirements of the terminal device.

[0113] FIG3 shows a method for updating a transmission reception point TRP according to an embodiment of the present disclosure. The method is applied to a network-side device, based on the embodiment shown in FIG1 , as shown in FIG3 , and may include the following steps.

[0114] Step 201: Determine a first TRP set corresponding to a terminal device and first configuration information of the first TRP set.

[0115] The first configuration information may include measurement parameters for the terminal device to measure the first reference signal and a reporting configuration for the terminal device to report the first channel measurement result. The terminal device may measure the first reference signal based on the measurement parameters and obtain the first channel measurement result. After obtaining the first channel measurement result, the terminal device may report the first channel measurement result to the network device according to the reporting configuration.

[0116] The first configuration information may include at least one of the following: Quasi Co-Location (QCL) information of the first reference signal, the QCL information includes one or more QCL relationships; the first measurement information of the first reference signal, the first measurement information includes the reference signal type, resource configuration and measurement quantity; the reporting configuration of the first reference signal, the reporting configuration includes any one of periodic reporting, semi-periodic reporting and non-periodic reporting. It should be noted that the first configuration information may also include other configuration parameters, which are not specifically limited here. Specifically, the terminal device may measure the first reference signal based on measurement parameters such as the QCL information of the first reference signal and the first measurement information. After obtaining the first channel measurement result, the first channel measurement result may be sent to the network side device according to the reporting configuration of the first reference signal.

[0117] Among them, the QCL information of the first reference signal may include one or more QCL relationships under the four QCL types of QCL type A, QCL type B, QCL type C, and QCL type D, and may also include other QCL relationships, which are not specifically limited here. The QCL relationship is used to determine the large-scale fading characteristics of the physical channel. The large-scale fading characteristics of the first reference signal sent to the terminal device by the same service TRP are the same. The terminal device can determine the number of first reference signals sent corresponding to each TRP in the first TRP set based on the large-scale fading characteristics reflected by the QCL relationship. Reference signal types may include Channel State Information Reference Signal (CSI-RS), Synchronization Signal Block (SSB), etc., which are not specifically limited here; resource configuration may be used to instruct the terminal device to measure the time domain resource position and frequency domain resource position of the first reference signal; measurement quantities may include Reference Signal Receiving Power (RSRP), Signal to Interference plus Noise Ratio (SINR), Reference Signal Receiving Quality (RSRQ), etc., which are not specifically limited here. The reporting configuration is used to indicate the reporting method of the terminal device regarding the first channel measurement result, which may specifically include one of the following: reporting the first channel measurement result with a preset time interval as the reporting period (i.e., periodic reporting), the terminal device reporting the first channel measurement result with a preset time interval as the reporting period starting from the time point indicated by the network side signaling (i.e., semi-periodic reporting), and the terminal device reporting the first channel measurement result in response to the dynamic signaling instruction of the network side (i.e., non-periodic reporting).

[0118] Step 202: Determine the second TRP set corresponding to the terminal device and the second configuration information of the second TRP set.

[0119] The second configuration information may include measurement parameters for the terminal device to measure the second reference signal and a reporting configuration for the terminal device to report the second channel measurement result. The terminal device may measure the second reference signal based on the measurement parameters and obtain the second channel measurement result. After obtaining the second channel measurement result, the terminal device may report the second channel measurement result to the network device according to the reporting configuration.

[0120] The second configuration information may include at least one of the following: the identity document (ID) of the measurement TRP cluster to which the second TRP in the second TRP set belongs; the QCL information of the second reference signal, the QCL information including one or more QCL relationships; the second measurement information of the second reference signal, the second measurement information including the frequency point used by the measurement TRP cluster, the reference signal type, the resource configuration and the measurement amount; the reporting configuration of the second reference signal, the reporting configuration including any one of periodic reporting, semi-periodic reporting and non-periodic reporting. It should be noted that the second configuration information may also include other configuration parameters, which are not specifically limited here. Specifically, the terminal device can measure the second reference signal based on the measurement parameters such as the measurement TRP cluster identification ID, QCL information, and the second measurement information of the second reference signal. After obtaining the second channel measurement result, the second channel measurement result can be sent to the network side device according to the reporting configuration of the second reference signal.

[0121] The QCL information of the second reference signal may include one or more QCL relationships under the four QCL types of QCL A, QCL type B, QCL type C, and QCL type D, and may also include other QCL relationships, which are not specifically limited here. The QCL relationship is used to determine the large-scale fading characteristics of the physical channel. The large-scale fading characteristics of the second reference signal sent to the terminal device by the same test TRP are the same. The terminal device can determine the number of second reference signals sent corresponding to each TRP in the second TRP set based on the large-scale fading characteristics reflected by the QCL relationship. Reference signal types may include Channel State Information Reference Signal (CSI-RS), Synchronization Signal Block (SSB), etc., which are not specifically limited here; resource configuration may be used to instruct the terminal device to measure the time domain resource position and frequency domain resource position of the second reference signal; measurement quantities may include Reference Signal Receiving Power (RSRP), Signal to Interference plus Noise Ratio (SINR), Reference Signal Receiving Quality (RSRQ), etc., which are not specifically limited here. The reporting configuration is used to instruct the terminal device on the reporting method of the second channel measurement result, which may specifically include one of the following: reporting the second channel measurement result with a preset time interval (such as 5ms) as the reporting period (i.e., periodic reporting), the terminal device reporting the second channel measurement result with a preset time interval as the reporting period starting at the time point indicated by the network side signaling (i.e., semi-periodic reporting), and the terminal device reporting the second channel measurement result in response to the dynamic signaling instruction of the network side (i.e., non-periodic reporting).

[0122] Step 203: Send the first configuration information and the second configuration information to the terminal device, and send the first reference signal and the second reference signal to the terminal device.

[0123] Among them, the first reference signal is a reference signal to be detected corresponding to the TRP in the first TRP set, and the second reference signal is a reference signal to be detected corresponding to the TRP in the second TRP set. For the embodiment of the present disclosure, the network side device can send the first configuration information and the second configuration information to the terminal device, and send the first reference signal and the second reference signal, so that the terminal device measures the first reference signal according to the first configuration information, determines the channel measurement result of the TRP in the first TRP set corresponding to the terminal device, and measures the second reference signal according to the second configuration information, determines the channel measurement result of the TRP in the second TRP set corresponding to the terminal device. When it is determined that the transmission status of the TRP in the current first TRP set is not good for the terminal device, such as the terminal device moves, so that the TRP in the first TRP set is far away from the terminal device after the movement, or the channel condition between the terminal device and the TRP changes and cannot meet the data transmission condition of the terminal device, the first TRP set can be updated according to the current service TRP cluster, or the current service TRP cluster and the first TRP set can be updated and divided according to the measurement TRP cluster and the second TRP set to ensure the data transmission quality of the terminal device.

[0124] Step 204: Determine whether to update the transmission reception point TRP cluster and TRP set corresponding to the terminal device based on the channel measurement result sent by the terminal device.

[0125] Among them, the channel measurement results may include a first channel measurement result and a second channel measurement result, the first channel measurement result is obtained by the terminal device measuring the first reference signal according to the first configuration information, and the second channel measurement result is obtained by the terminal device measuring the second reference signal according to the second configuration information. The transmission receiving point TRP cluster may include a service TRP cluster and a measurement TRP cluster, and the TRP set may include a first TRP set and a second TRP set. In a specific application scenario, before executing the steps of this embodiment, it may also include: receiving the first channel measurement result and the second channel measurement result sent by the terminal device.

[0126] For the specific implementation process of the embodiment of the present disclosure, please refer to the relevant description in step 102 of the embodiment, which will not be repeated here.

[0127] In summary, according to a method for updating a transmission receiving point TRP provided by the present disclosure, the network side device can send the first configuration information corresponding to the service TRP and the second configuration information corresponding to the measurement TRP and the corresponding reference signal to the terminal device, so that the terminal device performs reference signal measurement according to the first configuration information and the second configuration information to obtain a channel measurement result. The network side device can update the corresponding TRP cluster and TRP set for the terminal device according to the channel measurement result of the terminal device, so that the TRP cluster configured by the terminal device can be updated as the terminal device moves and the channel conditions change. During the distributed transmission process, the terminal device does not need to switch cells. The network side device updates the TRP cluster corresponding to the terminal device, and uses multiple TRPs in the TRP cluster to serve the terminal device, which can ensure the communication quality of edge users and meet the high-speed and high-capacity service requirements of the terminal device.

[0128] FIG4 shows a method for updating a transmission reception point TRP according to an embodiment of the present disclosure. The method is applied to a network-side device, based on the embodiments shown in FIG1 and FIG3 , as shown in FIG4 , and may include the following steps.

[0129] Step 301: Determine a first TRP set corresponding to a terminal device and first configuration information of the first TRP set.

[0130] For the embodiment of the present disclosure, the specific implementation process can be found in the relevant description of step 201 of the embodiment, which will not be repeated here.

[0131] Step 302: Determine the second TRP set corresponding to the terminal device and the second configuration information of the second TRP set.

[0132] For the specific implementation process of the embodiment of the present disclosure, please refer to the relevant description in step 202 of the embodiment, which will not be repeated here.

[0133] Step 303: Send the first configuration information and the second configuration information to the terminal device, and send the first reference signal and the second reference signal to the terminal device.

[0134] For the specific implementation process of the embodiment of the present disclosure, please refer to the relevant description in step 203 of the embodiment, which will not be repeated here.

[0135] Step 304: Receive the first channel measurement result and the second channel measurement result sent by the terminal device.

[0136] Among them, the first channel measurement result is the channel measurement result obtained by the terminal device measuring the first reference signal corresponding to the TRP in the first TRP set based on the QCL information, first measurement information and other measurement parameters of the first reference signal included in the first configuration information; the second channel measurement result is the channel measurement result obtained by the terminal device measuring the second reference signal corresponding to the TRP in the second TRP set based on the measurement parameters such as the measurement TRP cluster identifier ID, QCL information, and second measurement information of the second reference signal included in the second configuration information.

[0137] Step 305: Determine whether the TRP in the first TRP set meets the data transmission condition of the terminal device based on the first channel measurement result.

[0138] Among them, the data transmission condition of the terminal device may be that the TRP in the first TRP set satisfies the channel capacity maximization or resource utilization maximization, or it may also be that in the TRP of the first TRP set, the measurement quantity of the terminal device regarding the reference signal is less than a preset threshold, etc. The data transmission condition is not specifically limited here.

[0139] Step 306: In response to the TRP in the first TRP set not meeting the data transmission condition, the service TRP cluster is not updated, and the first TRP set is updated using the TRP in the service TRP cluster.

[0140] In a specific application scenario, the service TRP cluster may include service TRPs that have provided connection services to the terminal device, and may also include candidate TRPs to provide connection services to the terminal device. The first TRP set, as a subset of the service TRP cluster, may include all or part of the TRPs in the service TRP cluster. For the embodiment of the present disclosure, when the TRPs in the first TRP set do not meet the data transmission conditions, the first TRP set may be re-determined based on the TRPs (service TRPs and candidate TRPs) included in the service TRP cluster. For example, the service TRP cluster includes: TRP1, TRP2, TRP3, TRP4 and TRP5, and the first TRP set includes some TRPs in the service TRP cluster: TRP1, TRP2, TRP3. In response to the judgment that the first TRP set does not meet the data transmission conditions, such as the terminal device moves, the TRPs in the first TRP set are far away from the moved terminal device, or the channel conditions between the terminal device and the TRPs change. The first TRP set that meets the data transmission conditions can be determined based on the service TRP cluster update. For example, the updated first TRP set that meets the data transmission conditions includes TRP3, TRP4, and TRP5. When the first TRP set that meets the data transmission conditions exists in the service TRP cluster, it means that the service TRP cluster can meet the data transmission conditions of the terminal device, and there is no need to update the service TRP cluster.

[0141] Corresponding to the embodiment of the present disclosure, as a possible implementation method, in response to the TRP in the first TRP set meeting the data transmission requirements of the terminal device, the service TRP cluster, the measurement TRP cluster, the first TRP set and the second TRP set may not be updated.

[0142] Step 307: Send the updated configuration information to the terminal device.

[0143] Among them, the updated configuration information includes at least one of the following: the service TRP cluster identification ID corresponding to the first TRP set; the measurement TRP cluster identification ID corresponding to the second TRP set; the first configuration information of the first TRP set; and the second configuration information of the second TRP set.

[0144] In the disclosed embodiment, when the service TRP cluster is not updated and the first TRP set is updated, since the measurement TRP cluster is determined based on the service TRP cluster, there is no need to update the measurement TRP cluster and the second TRP set. Furthermore, after the first TRP set is updated, the updated configuration information sent to the terminal device may include the first configuration information of the first TRP set.

[0145] In summary, according to a method for updating a transmission receiving point TRP provided by the present disclosure, the network side device can send first configuration information corresponding to the service TRP and second configuration information corresponding to the measurement TRP to the terminal device, so that the terminal device performs reference signal measurement according to the first configuration information and the second configuration information to obtain a channel measurement result. Based on the channel measurement result of the terminal device, the network side device may not update the service TRP cluster corresponding to the terminal device, but use the TRP in the service TRP cluster to update the first TRP set that can meet the data transmission conditions of the terminal device, so as to ensure that the TRP of the first TRP set can adapt to the movement of the terminal device and the changes in channel conditions, ensure the communication quality of edge users, and do not need to switch cells, so as to provide better services to users.

[0146] Figure 5 shows a method for updating a transmission reception point TRP according to an embodiment of the present disclosure. The method is applied to a network side device, based on the embodiments shown in Figures 1, 3, and 4, as shown in Figure 5, and may include the following steps.

[0147] Step 401: Determine a first TRP set corresponding to a terminal device and first configuration information of the first TRP set.

[0148] For the embodiment of the present disclosure, the specific implementation process can be found in the relevant description of step 201 of the embodiment, which will not be repeated here.

[0149] Step 402: Determine the second TRP set corresponding to the terminal device and the second configuration information of the second TRP set.

[0150] For the specific implementation process of the embodiment of the present disclosure, please refer to the relevant description in step 202 of the embodiment, which will not be repeated here.

[0151] Step 403: Send the first configuration information and the second configuration information to the terminal device, and send the first reference signal and the second reference signal to the terminal device.

[0152] For the specific implementation process of the embodiment of the present disclosure, please refer to the relevant description in step 203 of the embodiment, which will not be repeated here.

[0153] Step 404: Receive the first channel measurement result and the second channel measurement result sent by the terminal device.

[0154] Step 405: Determine whether the TRP in the first TRP set meets the data transmission condition of the terminal device based on the first channel measurement result.

[0155] Among them, the data transmission condition of the terminal device may be that the TRP in the first TRP set satisfies the channel capacity maximization or resource utilization maximization, or it may also be that in the TRP in the first TRP set, the measurement amount of the terminal device regarding the reference signal is less than a preset threshold, etc. The data transmission condition is not specifically limited here.

[0156] Step 406: In response to the TRP in the first TRP set not meeting the data transmission condition, based on the second channel measurement result, the service TRP cluster and the first TRP set are updated using the TRP in the measurement TRP cluster, and the measurement TRP cluster and the second TRP set are updated according to the updated service TRP cluster.

[0157] For the embodiment of the present disclosure, when the first TRP set is updated using the current service TRP cluster, and it is determined based on the updated first TRP set that the current service TRP cluster cannot provide data transmission services for the terminal device, the measurement TRP cluster and the second TRP set can be used to assist in updating the service TRP cluster and the first TRP set. For example, the network side device can change the TRP in the measurement TRP cluster with stronger signal transmission capability for the terminal device in the second TRP set to the TRP in the service TRP cluster and the first TRP set based on the channel measurement results. In addition, after the service TRP cluster is updated, the measurement TRP cluster and the second TRP set can be further updated based on the updated service TRP cluster, so as to use the updated measurement TRP cluster and the second TRP set to assist in the subsequent update of the service TRP cluster and the first TRP set. For example, the service TRP cluster includes: TRP1, TRP2, TRP3, TRP4 and TRP5, the first TRP set includes some TRPs in the service TRP cluster: TRP1, TRP2, TRP3, and the test TRP cluster includes TRP6, TRP7, and TRP8. In response to TRP1, TRP2, and TRP3 not meeting the data transmission conditions, such as the terminal device moves, the first TRP set and the TRP in the current service TRP cluster are far away from the terminal device after the movement, or the channel conditions between the terminal device and the TRP change. Based on the second channel measurement result, a TRP with better channel transmission quality for the terminal device can be screened out from the adjacent measurement TRP cluster corresponding to the current service TRP cluster, and the service TRP cluster and the first TRP set are updated using the TRP, so that the updated TRP in the first TRP set meets the data transmission conditions. For example, the updated first TRP set that meets the data transmission conditions includes TRP3, TRP6, and TRP7, and the updated service TRP cluster that meets the data transmission conditions may include TRP1, TRP2, TRP3, TRP4, TRP5, TRP6, and TRP7.

[0158] It should be noted that, in response to the TRP in the first TRP set not meeting the data transmission conditions, the methods for updating the transmission reception point TRP cluster and TRP set corresponding to the terminal device in steps 306 and 406 of the embodiment can be further combined. The specific update method after the combination is not specifically limited here.

[0159] Corresponding to the embodiment of the present disclosure, as a possible implementation method, in response to the service TRP in the first TRP set meeting the data transmission requirements of the terminal device, the service TRP cluster, the measurement TRP cluster, the first TRP set and the second TRP set are not updated.

[0160] Step 407: Send the updated configuration information to the terminal device.

[0161] The updated configuration information includes at least one of the following: the service TRP cluster ID corresponding to the first TRP set; the measurement TRP cluster ID corresponding to the second TRP set; the first configuration information of the first TRP set; and the second configuration information of the second TRP set.

[0162] In the disclosed embodiment, when the service TRP cluster and the first TRP set are updated simultaneously, since the measurement TRP cluster is determined based on the service TRP cluster, the measurement TRP cluster and the second TRP set also need to be updated. Furthermore, after the first TRP set is updated, the updated configuration information sent to the terminal device may include the updated service TRP cluster identifier ID corresponding to the first TRP set; the updated measurement TRP cluster identifier ID corresponding to the second TRP set; the first configuration information of the first TRP set; and the second configuration information of the second TRP set.

[0163] In summary, according to a method for updating a transmission receiving point TRP provided by the present disclosure, the network side device can send first configuration information corresponding to the service TRP and second configuration information corresponding to the measurement TRP to the terminal device, so that the terminal device performs reference signal measurement according to the first configuration information and the second configuration information. The network side device can use the measurement TRP to update the service TRP cluster and the first TRP set based on the channel measurement result of the terminal device, and update the measurement TRP cluster and the second TRP set based on the updated service TRP cluster. This allows the first TRP set configured by the terminal device to adapt to the movement of the terminal device and changes in channel conditions, ensuring the communication quality of edge users without the need for cell switching, and providing better services to users.

[0164] FIG6 shows a method for updating a transmission reception point TRP according to an embodiment of the present disclosure. As shown in FIG6 , the method is applied to a terminal device and may include the following steps:

[0165] Step 501: Receive configuration information and reference signals sent by a network-side device.

[0166] Among them, the configuration information is used by the terminal device to perform reference signal measurement and report channel measurement results. The configuration information may include the configuration parameters for the terminal device to perform reference signal measurement and the reporting configuration for reporting channel measurement information. The configuration parameters may include the number of reference signal transmissions, transmission resources, frequency points, and measurement quantities; the reporting configuration includes any one of periodic reporting, semi-periodic reporting, and non-periodic reporting.

[0167] It should be noted that the network device may send configuration information and a reference signal to the terminal device simultaneously, i.e., the terminal device receives both the configuration information and the reference signal simultaneously. Alternatively, the network device may first send configuration information to the terminal device and then send the reference signal to the terminal device, i.e., the terminal device first receives the configuration information and then receives the reference signal. The order in which the configuration information and the reference signal are received is not specifically limited herein.

[0168] Step 502: Measure the reference signal according to the configuration information to obtain a channel measurement result.

[0169] For the embodiments of the present disclosure, after receiving the configuration information and reference signal sent by the network side device, the terminal device can measure the reference signal based on the configuration parameters included in the configuration information to obtain a channel measurement result, which is used to reflect the data transmission quality of the terminal device's corresponding configured TRP cluster and TRP set.

[0170] Step 503: Send the channel measurement result to the network side device, so that the network side device determines whether to update the TRP cluster and TRP set corresponding to the terminal device based on the channel measurement result.

[0171] According to the embodiment of the present disclosure, after obtaining the channel measurement result through measurement, the terminal device may send the channel measurement result to the network side device based on the reporting configuration included in the configuration information.

[0172] Among them, the transmission receiving point TRP cluster corresponding to the terminal device may include a service TRP cluster and a measurement TRP cluster, and the TRP set may include a first TRP set and a second TRP set. The service TRP cluster is the TRP cluster that currently provides connection services for the terminal device, and the measurement TRP cluster is the TRP cluster adjacent to the service TRP cluster. The first TRP set, as a subset of the service TRP cluster, may include all or part of the TRPs in the service TRP cluster, and the second TRP set, as a subset of the measurement TRP cluster, may include all or part of the TRPs in one or more measurement TRP clusters. The same TRP cluster uses the same set of system messages to achieve distributed collaborative transmission of terminal devices. The measurement TRP cluster and the second TRP set can be used to assist in updating the service TRP cluster and the first TRP set. For example, after the terminal device sends the channel measurement results to the network side device, the network side device can, based on the channel measurement results, change the measurement TRP in the measurement TRP cluster and the second TRP set that has stronger signal transmission capability for the terminal device to a TRP in the service TRP cluster and the first TRP set.

[0173] In summary, according to a method for updating a transmission receiving point TRP provided by the present disclosure, after receiving the configuration information and reference signal sent by the network side device, the terminal device can perform reference signal measurement according to the configuration information, and send the channel measurement result to the network side device, so that the network side device can update the corresponding TRP cluster and TRP set for the terminal device according to the channel measurement result of the terminal device, so that the TRP cluster configured by the terminal device can be updated as the terminal device moves and the channel conditions change. There is no cell switching in the distributed transmission process. The TRP cluster corresponding to the terminal device is updated by the network side device, and multiple TRPs in the TRP cluster are used to serve the terminal device, which can ensure the communication quality of edge users and meet the high-speed and high-capacity business needs of the terminal device.

[0174] FIG7 shows a method for updating a transmission reception point TRP according to an embodiment of the present disclosure. The method is applied to a terminal device, based on the embodiment shown in FIG6 , as shown in FIG7 , and may include the following steps.

[0175] Step 601: Receive first configuration information of a first TRP set and second configuration information of a second TRP set sent by a network side device.

[0176] The first configuration information may include at least one of the following: Quasi Co-Location (QCL) information of the first reference signal, including one or more QCL relationships; first measurement information of the first reference signal, including the reference signal type, resource configuration, and measurement quantity; and reporting configuration of the first reference signal, including any one of periodic reporting, semi-periodic reporting, and aperiodic reporting. It should be noted that the first configuration information may also include other configuration parameters, which are not specifically limited here.

[0177] Among them, the QCL information of the first reference signal may include one or more QCL relationships under the four QCL types of QCL type A, QCL type B, QCL type C, and QCL type D, and may also include other QCL relationships, which are not specifically limited here. The QCL relationship is used to determine the large-scale fading characteristics of the physical channel. The large-scale fading characteristics of the first reference signal sent to the terminal device by the same service TRP are the same. The terminal device can determine the number of first reference signals sent corresponding to each TRP in the first TRP set based on the large-scale fading characteristics reflected by the QCL relationship. Reference signal types may include Channel State Information Reference Signal (CSI-RS), Synchronization Signal Block (SSB), etc., which are not specifically limited here; resource configuration may be used to instruct the terminal device to measure the time domain resource position and frequency domain resource position of the first reference signal; measurement quantities may include Reference Signal Receiving Power (RSRP), Signal to Interference plus Noise Ratio (SINR), Reference Signal Receiving Quality (RSRQ), etc., which are not specifically limited here. The reporting configuration is used to instruct the terminal device on the reporting method of the first channel measurement result, which may specifically include one of the following: reporting the first channel measurement result with a preset time interval as the reporting period (i.e., periodic reporting), the terminal device reporting the first channel measurement result with a preset time interval as the reporting period starting at the time point indicated by the network side signaling (i.e., semi-periodic reporting), and the terminal device reporting the first channel measurement result in response to the dynamic signaling instruction of the network side (i.e., non-periodic reporting).

[0178] The second configuration information may include at least one of the following: the identity document (ID) of the measurement TRP cluster to which the second TRP in the second TRP set belongs; the QCL information of the second reference signal, the QCL information including one or more QCL relationships; the second measurement information of the second reference signal, the second measurement information including the frequency point, reference signal type, resource configuration and measurement amount used by the measurement TRP cluster; the reporting configuration of the second reference signal, the reporting configuration including any one of periodic reporting, semi-periodic reporting and non-periodic reporting.

[0179] The QCL information of the second reference signal may include one or more QCL relationships under the four QCL types of QCL A, QCL type B, QCL type C, and QCL type D, and may also include other QCL relationships, which are not specifically limited here. The QCL relationship is used to determine the large-scale fading characteristics of the physical channel. The large-scale fading characteristics of the second reference signal sent to the terminal device by the same test TRP are the same. The terminal device can determine the number of second reference signals sent corresponding to each TRP in the second TRP set based on the large-scale fading characteristics reflected by the QCL relationship. Reference signal types may include Channel State Information Reference Signal (CSI-RS), Synchronization Signal Block (SSB), etc., which are not specifically limited here; resource configuration may be used to instruct the terminal device to measure the time domain resource position and frequency domain resource position of the second reference signal; measurement quantities may include Reference Signal Receiving Power (RSRP), Signal to Interference plus Noise Ratio (SINR), Reference Signal Receiving Quality (RSRQ), etc., which are not specifically limited here. The reporting configuration is used to instruct the terminal device on the reporting method of the second channel measurement result, which may specifically include one of the following: reporting the second channel measurement result with a preset time interval (such as 5ms) as the reporting period (i.e., periodic reporting), the terminal device reporting the second channel measurement result with a preset time interval as the reporting period starting at the time point indicated by the network side signaling (i.e., semi-periodic reporting), and the terminal device reporting the second channel measurement result in response to the dynamic signaling instruction of the network side (i.e., non-periodic reporting).

[0180] Step 602: Receive a first reference signal and a second reference signal sent by a network-side device.

[0181] The first reference signal is a reference signal to be detected corresponding to the TRP in the first TRP set, and the second reference signal is a reference signal to be detected corresponding to the TRP in the second TRP set.

[0182] Step 603: Measure the first reference signal according to the first measurement configuration information to obtain a first channel measurement result, and measure the second reference signal according to the second measurement configuration information to obtain a second channel measurement result.

[0183] For the embodiment of the present disclosure, after the terminal device receives the first configuration information and the second configuration information, as well as the first reference signal and the second reference signal, sent by the network side device. The terminal device can measure the first reference signal corresponding to the TRP in the first TRP set based on the QCL information of the first reference signal, the first measurement information and other measurement parameters included in the first configuration information to obtain a first channel measurement result; and the terminal device can also measure the second reference signal corresponding to the TRP in the second TRP set based on the measurement parameters such as the measurement TRP cluster identifier ID, QCL information, and the second measurement information of the second reference signal included in the second configuration information to obtain a second channel measurement result. The first channel measurement result is used to reflect the data transmission quality of the TRP in the first TRP set corresponding to the terminal device; the second channel measurement result is used to reflect the data transmission quality of the TRP in the second TRP set corresponding to the terminal device.

[0184] Step 604: Send the first channel measurement result and the second channel measurement result to the network side device, so that the network side device determines whether to update the TRP cluster and TRP set corresponding to the terminal device based on the first channel measurement result and the second channel measurement result.

[0185] In the embodiments of the present disclosure, the terminal device may send the first channel measurement result and the second channel measurement result to the network device in accordance with the reporting mode indicated by the reporting configuration in the configuration information (e.g., one of periodic reporting, semi-periodic reporting, and aperiodic reporting). The network device may determine whether to update the transmission reception point (TRP) cluster and TRP set corresponding to the terminal device based on the first channel measurement result and the second channel measurement result. Specifically, as a possible implementation method, when the network side device determines based on the first channel measurement result that the transmission status of the TRP in the current first TRP set for the terminal device is not good, that is, it does not meet the data transmission requirements of the terminal device, such as the terminal device moves, the TRP in the first TRP set is far away from the terminal device after the movement, or the channel conditions between the terminal device and the TRP change and cannot meet the data transmission conditions of the terminal device, the first TRP set can be updated based on the current service TRP cluster, or the current service TRP cluster and the first TRP set can be updated and divided based on the measurement TRP cluster and the second TRP set to ensure the data transmission quality of the terminal device; as a possible implementation method, when the service TRP in the first TRP set meets the data transmission requirements of the terminal device, the service TRP cluster, the measurement TRP cluster, the first TRP set and the second TRP set may not be updated.

[0186] In summary, according to a method for updating a transmission receiving point TRP provided by the present disclosure, the terminal device can perform reference signal measurement based on the first configuration information and the second configuration information and the corresponding reference signal after receiving the first configuration information and the second configuration information sent by the network side device, and send the channel measurement result to the network side device, so that the network side device can update the corresponding TRP cluster and TRP set for the terminal device according to the channel measurement result of the terminal device, so that the TRP cluster configured by the terminal device can be updated as the terminal device moves and the channel conditions change. During the distributed transmission process, the terminal device does not need to switch cells, and multiple TRPs serve one terminal device, which can ensure the communication quality of edge users and meet the high-speed and high-capacity business needs of the terminal device.

[0187] FIG8 shows a method for updating a transmission reception point TRP according to an embodiment of the present disclosure. The method is applied to a terminal device, based on FIG6 and the embodiment shown in FIG6 , as shown in FIG8 , and may include the following steps.

[0188] Step 701: Receive updated configuration information sent by a network-side device.

[0189] Among them, the updated configuration information includes at least one of the following: the service TRP cluster identification ID corresponding to the first TRP set; the measurement TRP cluster identification ID corresponding to the second TRP set; the first configuration information of the first TRP set; and the second configuration information of the second TRP set.

[0190] In a specific application scenario, in response to a TRP in the first TRP set not meeting the data transmission condition, updating the configuration information may include two possible implementations:

[0191] As a possible implementation method, when the TRP in the first TRP set does not meet the data transmission conditions, the service TRP cluster is not updated, and the first TRP set is re-determined based on the service TRP included in the service TRP cluster. Correspondingly, when the service TRP cluster is not updated and the first TRP set is updated, since the measurement TRP cluster is determined based on the service TRP cluster, there is no need to update the measurement TRP cluster and the second TRP set. For the embodiment of the present disclosure, after the first TRP set is updated, the updated configuration information sent by the network side device received by the terminal device may include the first configuration information of the first TRP set.

[0192] As a possible implementation method, when the TRP in the first TRP set does not meet the data transmission conditions, the service TRP cluster and the first TRP set can be updated at the same time. In addition, the measurement TRP cluster and the second TRP set can be further updated based on the updated service TRP cluster, so as to utilize the updated measurement TRP cluster and the second TRP set to assist in the subsequent update of the service TRP cluster and the first TRP set. Accordingly, after the first TRP set is updated, the updated configuration information sent to the terminal device may include the updated service TRP cluster identification ID corresponding to the first TRP set; the updated measurement TRP cluster identification ID corresponding to the second TRP set; the first configuration information of the first TRP set; and the second configuration information of the second TRP set.

[0193] In summary, according to the transmission reception point (TRP) updating method provided by this disclosure, when a network device moves or channel conditions change, a terminal device can receive updated configuration information sent by the network device and perform reference signal measurements based on the configuration information. Furthermore, the network device updates the corresponding TRP cluster and TRP set for the terminal device based on the terminal device's channel measurement results, thereby ensuring the terminal device's communication quality and meeting the terminal device's high-speed, high-capacity service requirements.

[0194] Figure 9 is a timing diagram of a method for updating a transmission receiving point TRP according to an embodiment of the present disclosure. The method is applied to a communication system, which includes: a network side device and a terminal device. Among them, the network side device may include a TRP cluster, a centralized unit (CU) and a core network (CN) corresponding to Figure 2. During specific execution, the network side device determines the first TRP set corresponding to the terminal device and the first configuration information of the first TRP set, and determines the second TRP set corresponding to the terminal device and the second configuration information of the second TRP set; the network side device sends the first configuration information and the second configuration information to the terminal device; the network side device sends the first reference signal and the second reference signal to the terminal device; the terminal device measures the first reference signal according to the first measurement configuration information to obtain a first channel measurement result, and measures the second reference signal according to the second measurement configuration information to obtain a second channel measurement result; the terminal device sends the first channel measurement result and the second channel measurement result to the network side device; the network side device determines whether to update the TRP cluster and TRP set corresponding to the terminal device based on the first channel measurement result and the second channel measurement result.

[0195] Step 801: The network side device determines a first TRP set corresponding to the terminal device and first configuration information of the first TRP set, and determines a second TRP set corresponding to the terminal device and second configuration information of the second TRP set.

[0196] Among them, the first configuration information is used by the terminal device to perform a first reference signal measurement and report a first channel measurement result. The first reference signal is used by the terminal device to perform a channel measurement of the TRP within the first TRP set to obtain a first channel measurement result. The first configuration information is used by the terminal device to perform a second reference signal measurement and report a second channel measurement result. The second reference signal is used by the terminal device to perform a channel measurement of the TRP within the second TRP set to obtain a second channel measurement result.

[0197] The first configuration information may include at least one of the following: Quasi Co-Location (QCL) information of the first reference signal, the QCL information including one or more QCL relationships; first measurement information of the first reference signal, the first measurement information including the reference signal type, resource configuration and measurement amount; reporting configuration of the first reference signal, the reporting configuration including any one of periodic reporting, semi-periodic reporting and non-periodic reporting. The second configuration information may include at least one of the following: the identity document (ID) of the measurement TRP cluster to which the second TRP in the second TRP set belongs; QCL information of the second reference signal, the QCL information including one or more QCL relationships; second measurement information of the second reference signal, the second measurement information including the frequency point used by the measurement TRP cluster, the reference signal type, resource configuration and measurement amount; reporting configuration of the second reference signal, the reporting configuration including any one of periodic reporting, semi-periodic reporting and non-periodic reporting. For details, please refer to the relevant description in steps 201 and 202 of the embodiment, which will not be repeated here. It should be noted that the first configuration information and the second configuration information may also include other configuration parameters, which are not specifically limited here.

[0198] Step 802: The network-side device sends first configuration information and second configuration information to the terminal device.

[0199] Step 803: The network-side device sends a first reference signal and a second reference signal to the terminal device.

[0200] Among them, the first reference signal is a reference signal to be detected corresponding to the TRP in the first TRP set, and the second reference signal is a reference signal to be detected corresponding to the TRP in the second TRP set. For the embodiment of the present disclosure, the network side device can send the first configuration information and the second configuration information to the terminal device, and send the first reference signal and the second reference signal, so that the terminal device measures the first reference signal according to the first configuration information to determine the data transmission quality of the TRP in the first TRP set corresponding to the terminal device, and measures the second reference signal according to the second configuration information to determine the data transmission quality of the TRP in the second TRP set corresponding to the terminal device.

[0201] It should be noted that the network side device may send configuration information and reference signals to the terminal device at the same time, or may send configuration information to the terminal device and then send the reference signal to the terminal device. There is no specific limitation on the order in which the configuration information and reference signals are sent.

[0202] Step 804: The terminal device measures the first reference signal according to the first measurement configuration information to obtain a first channel measurement result, and measures the second reference signal according to the second measurement configuration information to obtain a second channel measurement result.

[0203] For the embodiment of the present disclosure, after the terminal device receives the first configuration information and the second configuration information, as well as the first reference signal and the second reference signal, sent by the network side device. The terminal device can measure the first reference signal corresponding to the TRP in the first TRP set based on the QCL information of the first reference signal, the first measurement information and other measurement parameters included in the first configuration information to obtain a first channel measurement result; and the terminal device can also measure the second reference signal corresponding to the TRP in the second TRP set based on the measurement parameters such as the measurement TRP cluster identifier ID, QCL information, and the second measurement information of the second reference signal included in the second configuration information to obtain a second channel measurement result. The first channel measurement result is used to reflect the data transmission quality of the TRP in the first TRP set corresponding to the terminal device; the second channel measurement result is used to reflect the data transmission quality of the TRP in the second TRP set corresponding to the terminal device.

[0204] Step 805: The terminal device sends the first channel measurement result and the second channel measurement result to the network side device.

[0205] For the embodiments of the present disclosure, the terminal device can send the first channel measurement results and the second channel measurement results to the network side device according to the reporting method indicated by the reporting configuration in the configuration information (such as periodic reporting, semi-periodic reporting, and non-periodic reporting).

[0206] Step 806: The network-side device determines whether to update the TRP cluster and TRP set corresponding to the terminal device based on the first channel measurement result and the second channel measurement result.

[0207] For the embodiment of the present disclosure, the network side device can determine whether to update the transmission receiving point TRP cluster and TRP set corresponding to the terminal device based on the first channel measurement result and the second channel measurement result. Specifically, as a possible implementation method, when the network side device determines based on the first channel measurement result that the transmission status of the TRP in the current first TRP set for the terminal device is not good, that is, it does not meet the data transmission conditions of the terminal device, such as when the terminal device moves, the TRP in the first TRP set is far away from the terminal device after the movement, or the channel condition between the terminal device and the TRP changes and cannot meet the data transmission conditions of the terminal device, then the first TRP set can be updated based on the current service TRP cluster; or the current service TRP cluster and the first TRP set can be updated and divided based on the measurement TRP cluster and the second TRP set to ensure the data transmission quality of the terminal device; as a possible implementation method, when the service TRP in the first TRP set meets the data transmission requirements of the terminal device, the service TRP cluster, the measurement TRP cluster, the first TRP set and the second TRP set may not be updated.

[0208] Step 807: The network-side device sends the updated configuration information to the terminal device.

[0209] Among them, the updated configuration information includes at least one of the following: the service TRP cluster identification ID corresponding to the first TRP set; the measurement TRP cluster identification ID corresponding to the second TRP set; the first configuration information of the first TRP set; and the second configuration information of the second TRP set.

[0210] In a specific application scenario, in response to a TRP in the first TRP set not meeting the data transmission condition, updating the configuration information may include three possible implementations:

[0211] As a possible implementation method, when the TRP in the first TRP set does not meet the data transmission conditions, the service TRP cluster is not updated, and the first TRP set is re-determined based on the TRP included in the service TRP cluster. Correspondingly, when the service TRP cluster is not updated and the first TRP set is updated, since the measurement TRP cluster is determined based on the service TRP cluster, there is no need to update the measurement TRP cluster and the second TRP set. For the embodiment of the present disclosure, after the first TRP set is updated, the updated configuration information sent by the network side device may include the first configuration information of the first TRP set.

[0212] As a possible implementation method, when the TRP in the first TRP set does not meet the data transmission conditions, the service TRP cluster and the first TRP set can be updated at the same time. In addition, the measurement TRP cluster and the second TRP set can be further updated based on the updated service TRP cluster, so as to utilize the updated measurement TRP cluster and the second TRP set to assist in the subsequent update of the service TRP cluster and the first TRP set. Accordingly, after the first TRP set is updated, the updated configuration information sent by the network side device to the terminal device may include the updated service TRP cluster identification ID corresponding to the first TRP set; the updated measurement TRP cluster identification ID corresponding to the second TRP set; the first configuration information of the first TRP set; and the second configuration information of the second TRP set.

[0213] As a possible implementation, when the TRPs in the first TRP set do not meet the data transmission conditions, the above two update methods can be further combined. The specific combined update method is not specifically limited here.

[0214] In summary, according to a method for updating a transmission receiving point TRP provided by the present disclosure, the network side device can send configuration information and a reference signal to the terminal device, so that the terminal device performs reference signal measurement according to the configuration information and obtains a channel measurement result. The network side device can update the corresponding TRP cluster and TRP set for the terminal device according to the channel measurement result of the terminal device, so that the TRP cluster and TRP set configured by the terminal device can be updated as the terminal device moves and changes in channel conditions, and can always meet the data transmission requirements of the terminal device. There is no cell switching in the distributed transmission process, and multiple TRPs serve one terminal device, which can ensure the communication quality of edge users and meet the high-speed and high-capacity business needs of the terminal device.

[0215] In the embodiments provided above, the methods provided in the embodiments of the present application are described from the perspectives of network-side devices and terminal devices, respectively. In order to implement the various functions of the methods provided in the embodiments of the present application, the network-side devices and terminal devices may include hardware structures and software modules, and implement the aforementioned functions in the form of hardware structures, software modules, or hardware structures plus software modules. One of the aforementioned functions may be executed in the form of hardware structures, software modules, or hardware structures plus software modules.

[0216] Corresponding to the wireless resource control RRC connection processing method provided in the above-mentioned embodiments, the present disclosure also provides a transmission receiving point TRP update device. Since the transmission receiving point TRP update device provided in the embodiment of the present disclosure corresponds to the transmission receiving point TRP update method provided in the above-mentioned embodiments, the implementation method of the transmission receiving point TRP update method is also applicable to the transmission receiving point TRP update device provided in this embodiment, and will not be described in detail in this embodiment.

[0217] FIG10 is a schematic structural diagram of a transmission reception point TRP updating device 900 provided according to an embodiment of the present disclosure. The transmission reception point TRP updating device 900 can be applied to a network-side device.

[0218] As shown in FIG10 , the apparatus 900 may include:

[0219] A sending module 910 may be configured to send configuration information and a reference signal to a terminal device, where the configuration information is used by the terminal device to measure the reference signal to obtain a channel measurement result;

[0220] The processing module 920 may be configured to determine whether to update the transmission reception point TRP cluster and TRP set corresponding to the terminal device based on the channel measurement result sent by the terminal device.

[0221] In some embodiments of the present disclosure, the processing module 920 can also be used to determine a TPR set corresponding to a terminal device, the TRP set including a first TRP set and a second TRP set, wherein the first TRP set includes one or more TRPs in a service TRP cluster, the service TRP cluster is a TRP cluster that currently provides connection services for the terminal device, and the second TRP set includes one or more TRPs in a measurement TRP cluster, the measurement TRP cluster is a TRP cluster adjacent to the service TRP cluster; determine configuration information of the TPR set corresponding to the terminal device, the configuration information including first configuration information and second configuration information, wherein the first configuration information is used for the terminal device to perform a first reference signal measurement of the first TRP set, and the second configuration information is used for the terminal device to perform a second reference signal measurement of the second TRP set.

[0222] In some embodiments of the present disclosure, the first configuration information includes at least one of the following:

[0223] QCL information of the first reference signal, wherein the QCL information includes one or more QCL relationships;

[0224] first measurement information of a first reference signal, wherein the first measurement information includes a reference signal type, a resource configuration, and a measurement amount;

[0225] A reporting configuration of the first reference signal, wherein the reporting configuration includes any one of periodic reporting, semi-periodic reporting, and aperiodic reporting.

[0226] In some embodiments of the present disclosure, the second configuration information includes at least one of the following:

[0227] The measurement TRP cluster ID to which the second TRP belongs in the second TRP set;

[0228] QCL information of the second reference signal, wherein the QCL information includes one or more QCL relationships;

[0229] Second measurement information of a second reference signal, wherein the second measurement information includes a frequency, a reference signal type, a resource configuration, and a measurement value;

[0230] The reporting configuration of the second reference signal includes any one of periodic reporting, semi-periodic reporting, and aperiodic reporting.

[0231] In some embodiments of the present disclosure, the sending module 910 may be further configured to send the first configuration information and the second configuration information to the terminal device; and send the first reference signal and the second reference signal to the terminal device.

[0232] In some embodiments of the present disclosure, the configuration information further includes a reporting configuration of a channel measurement result, and the channel measurement result includes a first channel measurement result and a second channel measurement result. As shown in FIG10 , the apparatus 900 further includes: a receiving module 930;

[0233] The receiving module 930 can be used to receive the first channel measurement result and the second channel measurement result sent by the terminal device according to the reported configuration, wherein the first channel measurement result is obtained by the terminal device measuring the first reference signal according to the first configuration information, and the second channel measurement result is obtained by the terminal device measuring the second reference signal according to the second configuration information.

[0234] In some embodiments of the present disclosure, the processing module 920 can be used to determine whether the TRP in the first TRP set meets the data transmission conditions of the terminal device based on the first channel measurement result; in response to the TRP in the first TRP set not meeting the data transmission conditions, the service TRP cluster is not updated, and the first TRP set is updated using the TRP in the service TRP cluster; and / or in response to the TRP in the first TRP set not meeting the data transmission conditions, based on the second channel measurement result, the service TRP cluster and the first TRP set are updated using the TRP in the measurement TRP cluster, and the measurement TRP cluster and the second TRP set are updated based on the updated service TRP cluster.

[0235] In some embodiments of the present disclosure, in response to the service TRP in the first TRP set not meeting the data transmission condition, the sending module 910 may be further configured to send updated configuration information to the terminal device, where the updated configuration information includes at least one of the following:

[0236] The service TRP cluster ID corresponding to the first TRP set;

[0237] The measurement TRP cluster ID corresponding to the second TRP set;

[0238] first configuration information of the first TRP set;

[0239] Second configuration information of the second TRP set.

[0240] In some embodiments of the present disclosure, the processing module 920 may be configured to not update the service TRP cluster, the measurement TRP cluster, the first TRP set, and the second TRP set in response to the TRP in the first TRP set satisfying the data transmission requirements of the terminal device.

[0241] FIG11 is a structural diagram of a transmission reception point TRP updating device 1000 provided according to an embodiment of the present disclosure. The transmission reception point TRP updating device 1000 can be applied to a terminal device.

[0242] As shown in FIG11 , the apparatus 1000 may include:

[0243] The receiving module 1010 may be configured to receive configuration information and reference signals sent by a network-side device;

[0244] The processing module 1020 may be configured to measure a reference signal according to the configuration information to obtain a channel measurement result;

[0245] The sending module 1030 can be used to send the channel measurement results to the network side device, so that the network side device determines whether to update the TRP cluster and TRP set corresponding to the terminal device based on the channel measurement results.

[0246] In some embodiments of the present disclosure, the configuration information includes first configuration information and second configuration information, the first configuration information is used for the terminal device to perform a first reference signal measurement of a first TRP set, and the second configuration information is used for the terminal device to perform a second reference signal measurement of a second TRP set, wherein the first TRP set includes one or more service TRPs in a service TRP cluster, the service TRP cluster is a TRP cluster that currently provides connection services for the terminal device, and the second TRP set includes one or more measurement TRPs in a measurement TRP cluster, and the measurement TRP cluster is a TRP cluster adjacent to the service TRP cluster.

[0247] In some embodiments of the present disclosure, the first configuration information includes at least one of the following:

[0248] QCL information of the first reference signal, wherein the QCL information includes one or more QCL relationships;

[0249] first measurement information of a first reference signal, wherein the first measurement information includes a reference signal type, a resource configuration, and a measurement amount;

[0250] A reporting configuration of the first reference signal, wherein the reporting configuration includes any one of periodic reporting, semi-periodic reporting, and aperiodic reporting.

[0251] In some embodiments of the present disclosure, the second configuration information includes at least one of the following:

[0252] The measurement TRP cluster ID to which the second TRP belongs in the second TRP set;

[0253] QCL information of the second reference signal, wherein the QCL information includes one or more QCL relationships;

[0254] Second measurement information of a second reference signal, wherein the second measurement information includes a frequency, a reference signal type, a resource configuration, and a measurement value;

[0255] The reporting configuration of the second reference signal includes any one of periodic reporting, semi-periodic reporting, and aperiodic reporting.

[0256] In some embodiments of the present disclosure, the processing module 1020 may be configured to measure a first reference signal according to first measurement configuration information to obtain a first channel measurement result; and measure a second reference signal according to second measurement configuration information to obtain a second channel measurement result.

[0257] In some embodiments of the present disclosure, the configuration information further includes a reporting configuration of the channel measurement result. The sending module 1030 may be configured to send the first channel measurement result and the second channel measurement result to the network side device according to the reporting configuration.

[0258] In some embodiments of the present disclosure, the method further includes:

[0259] Receive updated configuration information sent by the network-side device, where the updated configuration information includes at least one of the following:

[0260] The service TRP cluster ID corresponding to the first TRP set;

[0261] The measurement TRP cluster ID corresponding to the second TRP set;

[0262] first configuration information of the first TRP set;

[0263] Second configuration information of the second TRP set.

[0264] Please refer to Figure 12, which is a schematic diagram of the structure of a communication device 1300 provided in an embodiment of the present application. Communication device 1300 can be a network device or a user device, or a chip, chip system, or processor that supports the network device to implement the above method. It can also be a chip, chip system, or processor that supports the user device to implement the above method. This device can be used to implement the method described in the above method embodiment. For details, please refer to the description of the above method embodiment.

[0265] The communication device 1300 may include one or more processors 1301. The processor 1301 may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control the communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or CU, etc.), execute computer programs, and process computer program data.

[0266] Optionally, the communication device 1300 may further include one or more memories 1302, on which a computer program 1304 may be stored. The processor 1301 executes the computer program 1304 to cause the communication device 1300 to perform the method described in the above method embodiment. Optionally, the memory 1302 may also store data. The communication device 1300 and the memory 1302 may be provided separately or integrated together.

[0267] Optionally, the communication device 1300 may further include a transceiver 1305 and an antenna 1306. The transceiver 1305 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, and is configured to implement transceiver functions. The transceiver 1305 may include a receiver and a transmitter. The receiver may be referred to as a receiver or a receiving circuit, and is configured to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, and is configured to implement a transmitting function.

[0268] Optionally, the communication device 1300 may further include one or more interface circuits 1307. The interface circuit 1307 is configured to receive code instructions and transmit the instructions to the processor 1301. The processor 1301 executes the code instructions to enable the communication device 1300 to perform the method described in the above method embodiment.

[0269] In one implementation, processor 1301 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and transmitting functions may be separate or integrated. The transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or may be used for transmitting or delivering signals.

[0270] In one implementation, processor 1301 may store a computer program 1303. Computer program 1303, when executed on processor 1301, enables communication device 1300 to perform the method described in the above method embodiment. Computer program 1303 may be embedded in processor 1301, in which case processor 1301 may be implemented by hardware.

[0271] In one implementation, the communication device 1300 may include a circuit that can implement the functions of sending, receiving, or communicating in the aforementioned method embodiments. The processor and transceiver described in this application can be implemented on an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0272] The communication device described in the above embodiments may be a network device or a user device, but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be limited to FIG12. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

[0273] (1) An independent integrated circuit (IC), or chip, or chip system or subsystem;

[0274] (2) a collection of one or more ICs, optionally including a storage component for storing data and computer programs;

[0275] (3) ASIC, such as modem;

[0276] (4) Modules that can be embedded in other devices;

[0277] (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

[0278] (6)Others, etc.

[0279] If the communication device can be a chip or a chip system, please refer to the schematic diagram of the chip structure shown in Figure 13. The chip shown in Figure 13 includes a processor 1401 and an interface 1402. The number of processors 1401 can be one or more, and the number of interfaces 1402 can be multiple.

[0280] Optionally, the chip further includes a memory 1403, which is used to store necessary computer programs and data.

[0281] Those skilled in the art will also appreciate that the various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement the functions for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of the present application.

[0282] The present application also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.

[0283] The present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0284] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from a website, computer, server or data center to another website, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. Available media may be magnetic media (eg, floppy disks, hard disks, tapes), optical media (eg, high-density digital video discs (DVDs)), or semiconductor media (eg, solid state disks (SSDs)).

[0285] The present disclosure proposes a method and device for updating a transmission reception point (TRP), which can solve the problems of poor communication quality of edge users and the need for frequent cell switching in the existing multi-node collaborative network architecture.

[0286] Based on the present disclosure, an example of a specific solution is as follows:

[0287] 1. Network side

[0288] 1. Determine two measurement TRP sets

[0289] TRP set 1: serves all or part of the TRPs in the TRP cluster.

[0290] TRP Set 2: All or part of the TRPs of one or more measured TRP clusters.

[0291] Among them, the service TRP cluster is the TRP cluster that currently provides connection services for the UE, and the measurement TRP cluster is other TRP clusters adjacent to the service cluster. The measurement TRP cluster uses the same set of system messages, broadcast channels, etc.

[0292] 2. Determine the measurement reference signal configuration for TRP set 1. The configuration parameters include at least one of the following:

[0293] QCL information of the reference signal;

[0294] Reference signal measurement configuration;

[0295] Report configuration.

[0296] Among them, QCL information includes one or more QCL relationships; reference signal measurement configuration may include reference signal type (SSB / CSI-RS), reference signal resource configuration, measurement quantity (RSRP / SINR / RSRQ...), etc.; reporting configuration may include periodic reporting, semi-periodic reporting, and non-periodic (dynamic signaling indication).

[0297] 3. Determine the measurement reference signal configuration for TRP set 2. The configuration parameters include at least one of the following:

[0298] The TRP cluster ID to which the TRP belongs;

[0299] Reference signal QCL information;

[0300] TRP reference signal measurement configuration;

[0301] Report configuration.

[0302] Among them, QCL information includes one or more QCL relationships; reference signal measurement configuration may include frequency, reference signal type (SSB / CSI-RS), reference signal resource configuration, measurement quantity (RSRP / SINR / RSRQ...), etc.; reporting configuration may include periodic reporting, semi-periodic reporting, and non-periodic (dynamic signaling indication).

[0303] 4. Send reference signal configuration information.

[0304] 5. The TRPs in TRP set 1 and TRP set 2 send reference signals respectively.

[0305] 6. Receive the measurement results reported by the UE, update the TRPs included in TRP cluster 1 and TRP set 2 according to the measurement results, and indicate the configuration information to the terminal. The configuration information includes at least one of the following:

[0306] Updated TRP cluster ID and its corresponding configuration information, which includes at least one of the following:

[0307] Service cluster ID;

[0308] Measurement cluster ID;

[0309] For the updated reference signal configuration information of TRP set 1 and TRP set 2, please refer to steps 2 and 3 above.

[0310] 2. Terminal side

[0311] 1. Receive network-side configuration information.

[0312] 2. Receive the reference signal of the TRP in the TRP cluster, perform channel quality assessment, and complete the report according to the network configuration.

[0313] In summary, the present disclosure has the following beneficial technical effects: the TRP cluster and TRP set configured by a terminal device can be updated as the terminal device moves and changes in channel conditions. During distributed transmission, the terminal device does not need to switch cells, and multiple TRPs serve a single terminal device, ensuring the communication quality of edge users and meeting the high-speed, high-capacity service requirements of the terminal device.

[0314] Those skilled in the art will understand that the various numerical numbers such as first and second involved in this application are only for the convenience of description and are not used to limit the scope of the embodiments of this application, and also indicate the order of precedence.

[0315] In this application, at least one can also be described as one or more, and multiple can be two, three, four or more, which is not limited in this application. In the embodiments of this application, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", and there is no order of precedence or size between the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0316] As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, apparatus, and / or device (e.g., a magnetic disk, an optical disk, a memory, a programmable logic device (PLD)) for providing machine instructions and / or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal for providing machine instructions and / or data to a programmable processor.

[0317] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), and the Internet.

[0318] Computer systems may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The client and server relationship arises through computer programs running on the respective computers and having a client-server relationship to each other.

[0319] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this disclosure can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved. This is not limited herein.

[0320] Furthermore, it should be understood that the various embodiments of the present application may be implemented individually or in combination with other embodiments where the solution permits.

[0321] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0322] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0323] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A method for updating a transmission reception point (TRP), applied to a network-side device, characterized in that: The method comprises: Sending configuration information and a reference signal to a terminal device, where the configuration information is used by the terminal device to measure the reference signal to obtain a channel measurement result; According to the channel measurement result sent by the terminal device, determine whether to update the transmission reception point TRP cluster and TRP set corresponding to the terminal device.

2. The method according to claim 1, characterized in that Before sending the configuration information and the reference signal to the terminal device, the method further includes at least one of the following: Determine a TRP set corresponding to the terminal device, where the TRP set includes a first TRP set and a second TRP set, wherein the first TRP set includes one or more TRPs in a serving TRP cluster, where the serving TRP cluster is a TRP cluster that currently provides a connection service for the terminal device, and the second TRP set includes one or more TRPs in a measuring TRP cluster, where the measuring TRP cluster is a TRP cluster adjacent to the serving TRP cluster; Determine the configuration information of the terminal device corresponding to the TPR set, the configuration information including first configuration information and second configuration information, wherein the first configuration information is used by the terminal device to perform a first reference signal measurement of the first TRP set, and the second configuration information is used by the terminal device to perform a second reference signal measurement of the second TRP set.

3. The method according to claim 2, characterized in that The first configuration information includes at least one of the following: QCL information of the first reference signal, wherein the QCL information includes one or more QCL relationships; first measurement information of the first reference signal, wherein the first measurement information includes a reference signal type, a resource configuration, and a measurement amount; The reporting configuration of the first reference signal includes any one of periodic reporting, semi-periodic reporting, and aperiodic reporting.

4. The method according to claim 2, characterized in that The second configuration information includes at least one of the following: The measurement TRP cluster ID to which the second TRP in the second TRP set belongs; QCL information of the second reference signal, wherein the QCL information includes one or more QCL relationships; second measurement information of the second reference signal, wherein the second measurement information includes a frequency, a reference signal type, a resource configuration, and a measurement amount; The reporting configuration of the second reference signal includes any one of periodic reporting, semi-periodic reporting, and aperiodic reporting.

5. The method according to claim 2, characterized in that The sending of configuration information and a reference signal to the terminal device includes: sending the first configuration information and the second configuration information to the terminal device; and The first reference signal and the second reference signal are sent to the terminal device.

6. The method according to claim 2, characterized in that The configuration information further includes a reporting configuration of the channel measurement result, the channel measurement result includes a first channel measurement result and a second channel measurement result, and the method further includes: receiving the first channel measurement result and the second channel measurement result sent by the terminal device according to the reporting configuration, wherein: The first channel measurement result is obtained by the terminal device measuring the first reference signal according to the first configuration information, and the second channel measurement result is obtained by the terminal device measuring the second reference signal according to the second configuration information.

7. The method according to claim 6, characterized in that The determining, based on the channel measurement result sent by the terminal device, whether to update the TRP cluster and TRP set corresponding to the terminal device includes: determining, based on the first channel measurement result, whether a TRP in the first TRP set meets a data transmission condition of the terminal device; In response to a TRP in the first TRP set not satisfying the data transmission condition, not updating the serving TRP cluster, but updating the first TRP set using the TRP in the serving TRP cluster; and / or In response to the TRP in the first TRP set not meeting the data transmission condition, based on the second channel measurement result, the service TRP cluster and the first TRP set are updated using the TRP in the measurement TRP cluster, and the measurement TRP cluster and the second TRP set are updated based on the updated service TRP cluster.

8. The method according to claim 7, characterized in that In response to a TRP in the first TRP set not satisfying the data transmission condition, the method further includes: Sending updated configuration information to the terminal device, where the updated configuration information includes at least one of the following: The service TRP cluster ID corresponding to the first TRP set; The measurement TRP cluster ID corresponding to the second TRP set; first configuration information of the first TRP set; Second configuration information of the second TRP set.

9. The method according to claim 7, characterized in that The determining, based on the channel measurement result sent by the terminal device, whether to update the TRP cluster and TRP set corresponding to the terminal device includes: In response to the TRP in the first TRP set satisfying the data transmission requirement of the terminal device, the service TRP cluster, the measurement TRP cluster, the first TRP set and the second TRP set are not updated.

10. A method for updating a transmission reception point (TRP), applied to a terminal device, characterized in that: The method comprises: Receive configuration information and reference signals sent by network-side devices; measuring the reference signal according to the configuration information to obtain a channel measurement result; The channel measurement result is sent to the network side device, so that the network side device determines whether to update the TRP cluster and TRP set corresponding to the terminal device according to the channel measurement result.

11. The method according to claim 10, characterized in that The configuration information includes first configuration information and second configuration information, the first configuration information is used by the terminal device to perform a first reference signal measurement of a first TRP set, and the second configuration information is used by the terminal device to perform a second reference signal measurement of a second TRP set, wherein the first TRP set includes one or more service TRPs in a service TRP cluster, and the service TRP cluster is a TRP cluster that currently provides connection services for the terminal device, and the second TRP set includes one or more measurement TRPs in a measurement TRP cluster, and the measurement TRP cluster is a TRP cluster adjacent to the service TRP cluster.

12. The method according to claim 11, characterized in that The first configuration information includes at least one of the following: QCL information of the first reference signal, wherein the QCL information includes one or more QCL relationships; first measurement information of the first reference signal, wherein the first measurement information includes a reference signal type, a resource configuration, and a measurement amount; The reporting configuration of the first reference signal includes any one of periodic reporting, semi-periodic reporting, and aperiodic reporting.

13. The method according to claim 11, characterized in that The second configuration information includes at least one of the following: The measurement TRP cluster ID to which the second TRP in the second TRP set belongs; QCL information of the second reference signal, wherein the QCL information includes one or more QCL relationships; second measurement information of the second reference signal, wherein the second measurement information includes a frequency, a reference signal type, a resource configuration, and a measurement amount; The reporting configuration of the second reference signal includes any one of periodic reporting, semi-periodic reporting, and aperiodic reporting.

14. The method according to claim 11, characterized in that Measuring the reference signal according to the configuration information to obtain a channel measurement result includes: measuring the first reference signal according to the first measurement configuration information to obtain a first channel measurement result; and The second reference signal is measured according to the second measurement configuration information to obtain a second channel measurement result.

15. The method according to claim 14, characterized in that The configuration information further includes a reporting configuration for the channel measurement result, and the sending of the channel measurement result to the network side device includes: Send the first channel measurement result and the second channel measurement result to the network side device according to the reporting configuration.

16. The method according to claim 10, characterized in that The method further comprises: Receive updated configuration information sent by the network-side device, where the updated configuration information includes at least one of the following: The service TRP cluster ID corresponding to the first TRP set; The measurement TRP cluster ID corresponding to the second TRP set; first configuration information of the first TRP set; Second configuration information of the second TRP set.

17. A transmission reception point TRP updating device, applied to a network side device, characterized in that: The device comprises: a sending module, configured to send configuration information and a reference signal to a terminal device, wherein the configuration information is used by the terminal device to measure the reference signal to obtain a channel measurement result; A processing module is used to determine whether to update the transmission reception point TRP cluster and TRP set corresponding to the terminal device based on the channel measurement result sent by the terminal device.

18. A transmission reception point (TRP) updating device, applied to a terminal device, characterized in that: The device comprises: A receiving module, configured to receive configuration information and reference signals sent by a network-side device; a processing module, configured to measure the reference signal according to the configuration information to obtain a channel measurement result; The sending module is used to send the channel measurement result to the network side device, so that the network side device determines whether to update the TRP cluster and TRP set corresponding to the terminal device according to the channel measurement result.

19. A communication device, wherein: include: transceiver; Memory; A processor is connected to the transceiver and the memory respectively, and is configured to control the wireless signal reception and transmission of the transceiver by executing computer-executable instructions on the memory, and can implement the method according to any one of claims 1 to 16.

20. A computer storage medium, wherein: The computer storage medium stores computer-executable instructions; after the computer-executable instructions are executed by the processor, the method according to any one of claims 1 to 16 can be implemented.

21. A communication system comprising a network side device and a terminal device, characterized in that: The network side device is configured to perform the method according to any one of claims 1 to 9; The terminal device is configured to execute the method according to any one of claims 9 to 16.

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