Communication method, device and system

Abstract

A communication method, apparatus and system, which can be applied to the technical field of communications, the method comprising: a terminal device receives a first MBS service and records measurement data of the first MBS service, the measurement data being used to determine coverage information and / or quality of service (QoS) information of the first MBS service; further, the terminal device sends the first measurement data to the first network device, so that the network device determines the coverage condition and the QoS satisfaction condition of the first MBS service according to the measurement data of the first MBS service, thereby facilitating the network device to regulate and control the performance of the first MBS service, and improving the user experience of the first MBS service.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and more particularly, to a communication method, apparatus, and system. Background Art

[0002] Multicast / broadcast services (MBS) is a data distribution / transmission method in which a network device can simultaneously distribute / transmit the same content to multiple terminal devices, enabling efficient utilization of wireless resources. However, in the current technical context, network devices cannot observe performance such as the coverage of MBS services and the quality of service (QoS), resulting in the inability of network devices to optimize the performance of MBS services. Summary of the Invention

[0003] This application provides a communication method, apparatus, and system that can record measurement data for MBS services, enabling network devices to observe the coverage and / or QoS of MBS services.

[0004] In a first aspect, a communication method is provided. This method can be executed by a terminal device or a component of the terminal device (such as a chip or a chip system, etc.), and this application does not limit this. The method includes: receiving a first MBS service; recording first measurement data of the first MBS service, where the first measurement data is used to determine the coverage information and / or QoS information of the first MBS service; and sending the first measurement data to a first network device.

[0005] In the above technical solution, the terminal device records the measurement data of the MBS service and reports the measurement data of the MBS service to the network device, enabling the network device to observe and regulate the performance of the MBS service, which helps to improve the user experience of the first MBS service.

[0006] In combination with the first aspect, in some implementation manners of the first aspect, the method further includes: receiving measurement configuration information from a second network device, where the measurement configuration information instructs the terminal device to record the first measurement data; and recording the first measurement data of the first MBS service, including: recording the first measurement data according to the measurement configuration information.

[0007] It should be noted that the second network device and the first network device may be the same network device, or may also be different network devices.

[0008] In the above technical solution, the network device may configure information of the MBS service for which measurement data needs to be recorded for the terminal device, so that the terminal device records measurement data for a specific MBS service, which helps to save the overhead required for the terminal device to record and report measurement data, and helps to meet the network device's requirements for observing the coverage and / or QoS of a specific MBS service.

[0009] In combination with the first aspect, in some implementation manners of the first aspect, the measurement configuration information indicates at least one of the following: at least one MBS session identifier, and each MBS session identifier in the at least one MBS session identifier is used to identify at least one MBS service; at least one MBS service area, and each MBS service area in the at least one MBS service area provides at least one MBS service; or at least one downlink frequency point supporting the MBS service.

[0010] In the above technical solution, the specific manner in which the network device configures the information required for the terminal device to record MBS service measurement data is clarified, so that the terminal device records the measurement data of the MBS service according to the indication of the measurement configuration information.

[0011] In combination with the first aspect, in some implementation manners of the first aspect, recording the first measurement data includes at least one of the following: when at least one MBS session identifier indicates a first MBS service and the first MBS service is received, recording the first measurement data; when the first MBS service is received within at least one MBS service area, recording the first measurement data; or when the first MBS service is received at at least one downlink frequency point supporting the MBS service, recording the first measurement data.

[0012] In combination with the first aspect, in some implementation manners of the first aspect, the method further includes: determining a minimization of drive-tests (MDT) mode used to record the first measurement data according to the distribution manner of the first MBS service; recording the first measurement data includes: recording the first measurement data in the MDT mode.

[0013] In the above technical solution, recording measurement data in different MDT modes according to the distribution manner of the MBS service helps to achieve an equilibrium among the measurement efficiency, reporting efficiency of the MBS service measurement data, and the communication overhead required to report the MBS measurement data.

[0014] In combination with the first aspect, in some implementation manners of the first aspect, determining the MDT mode used to record the first measurement data according to the distribution manner of the first MBS service includes: when the distribution manner of the first MBS service is broadcast, determining the MDT mode as logging MDT; or when the distribution manner of the first MBS service is multicast or unicast, determining the MDT mode as fast MDT.

[0015] In the above technical solution, when the distribution method of the first MBS service is broadcast, using the logging MDT to record measurement data helps to save the overhead required for reporting measurement data; when the distribution method of the first MBS service is multicast or unicast, using the fast MDT to record measurement data helps to improve the efficiency of reporting measurement data.

[0016] In combination with the first aspect, in some implementation manners of the first aspect, recording the first measurement data includes: using the logging MDT to record the first measurement data.

[0017] In the above technical solution, the terminal device uses the logging MDT to record the measurement data of the MBS service, so that the network device can determine whether to request the measurement data of the MBS service. When the network device does not request the measurement data of the MBS service, the terminal device does not report the measurement data of the MBS service, which helps to save communication overhead.

[0018] In combination with the first aspect, in some implementation manners of the first aspect, the method further includes: sending indication information to the first network device, where the indication information indicates the existence of the first measurement data.

[0019] In the above technical solution, the terminal device can separately indicate the existence of the measurement data of the MBS service, so that the network device can determine whether to request the measurement data of the MBS service. When the terminal device stores both the measurement data of the MBS service and the measurement data of the conventional MDT (other services or no service), the network device can determine to preferentially request the measurement data of the MBS service or not request the measurement data of the MBS service according to the indication information, which helps to save the communication overhead of transmitting measurement data.

[0020] In combination with the first aspect, in some implementation manners of the first aspect, the method further includes: receiving request information from the first network device, where the request information is used to request the first measurement data; sending the first measurement data to the first network device, including: sending the first measurement data to the first network device according to the request information.

[0021] In combination with the first aspect, in some implementation manners of the first aspect, the first measurement data includes at least one of the following:

[0022] The MBS session identifier of the first MBS service;

[0023] The number of MBS radio bearers (MRBs) corresponding to the session of the first MBS service;

[0024] Providing the serving cell identifier information of the session of the first MBS service;

[0025] Provide the neighbor cell identification information of the session of the first MBS service;

[0026] The service area information corresponding to the first MBS service;

[0027] Provide the downlink reference signal measurement results of the cell corresponding to the first MBS service;

[0028] Provide the downlink reference signal measurement results of the cell corresponding to the second MBS service, where the second MBS service is other services except the first MBS service;

[0029] The block error rate corresponding to the session of the first MBS service;

[0030] The distribution mode indication information of the first MBS service, where the distribution mode indication information is used to indicate that the distribution mode of the first MBS service is one of broadcast, multicast or unicast;

[0031] The multicast distribution mechanism indication information of the first MBS service, where the multicast distribution mechanism indication information is used to indicate that the transmission mechanism of the first MBS service is point-to-point transmission or point-to-multipoint transmission; or

[0032] The MBS interest indication information of the terminal device, where the MBS interest indication information indicates at least one of the following: the frequency of the broadcast service that the terminal device is receiving or interested in receiving, the session identifier of the MBS service that the terminal device is receiving or interested in receiving, or the priority of the terminal device receiving unicast service and broadcast service.

[0033] The terminal device reports the above first measurement data to the network device, which helps the network device adjust the frequency points, MRB numbers, MBS sessions, MBS distribution modes, multicast mechanisms, etc. that support the MBS service, so as to optimize the performance of the first MBS service and improve the experience of the users of the first MBS service.

[0034] In a second aspect, a communication method is provided. This method can be executed by a network device or by a component of the network device (such as a chip or a chip system, etc.), and this application does not make any limitations in this regard. The method includes: sending the first MBS service to the terminal device; recording the second measurement data of the first MBS service, where the second measurement data is used to determine the coverage information and / or QoS information of the first MBS service.

[0035] In the above technical solution, the network device can record the measurement data of the MBS service, which helps to observe and control the performance of the MBS service, and further improve the experience of the users of the first MBS service. The measurement data of the MBS service recorded by the network device is complementary to the measurement data recorded by the terminal device, which helps the network device obtain more comprehensive measurement data of the MBS service.

[0036] In combination with the second aspect, in some implementations of the second aspect, the method further includes: receiving first measurement data from a terminal device, where the first measurement data is measurement data of a first MBS service, and the first measurement data is used to determine coverage information and / or QoS information of the first MBS service.

[0037] In some implementations, the network device helps to determine more comprehensive coverage information and / or QoS information of the first MBS service based on the first measurement data and the second measurement data.

[0038] In combination with the second aspect, in some implementations of the second aspect, the method further includes: sending measurement configuration information to the terminal device, where the measurement configuration information instructs the terminal device to record the first measurement data.

[0039] In combination with the second aspect, in some implementations of the second aspect, the measurement configuration information instructs at least one of the following: at least one MBS session identifier, where each MBS session identifier in the at least one MBS session identifier is used to identify at least one MBS service; at least one MBS service area, where each MBS service area in the at least one MBS service area provides at least one MBS service; or at least one downlink frequency point supporting the MBS service.

[0040] In combination with the second aspect, in some implementations of the second aspect, the method further includes: receiving indication information from the terminal device, where the indication information indicates the existence of the first measurement data.

[0041] In combination with the second aspect, in some implementations of the second aspect, the method further includes: sending request information to the terminal device, where the request information is used to request the first measurement data.

[0042] In combination with the second aspect, in some implementations of the second aspect, the first measurement data includes at least one of the following:

[0043] The MBS session identifier of the first MBS service;

[0044] The number of MRBs corresponding to the session of the first MBS service;

[0045] The serving cell identifier information of the session providing the first MBS service;

[0046] The neighbor cell identifier information of the session providing the first MBS service;

[0047] The service area information corresponding to the first MBS service;

[0048] The downlink reference signal measurement result of the cell providing the first MBS service;

[0049] Provide the measurement result of the downlink reference signal corresponding to the cell providing the second MBS service, where the second MBS service is other services except the first MBS service;

[0050] The block error rate corresponding to the first MBS session;

[0051] The distribution mode indication information of the first MBS service, where the distribution mode indication information is used to indicate that the distribution mode of the first MBS service is one of broadcast, multicast, or unicast;

[0052] The multicast distribution mechanism indication information of the first MBS service, where the multicast distribution mechanism indication information is used to indicate that the transmission mechanism of the first MBS service is point-to-point or point-to-multipoint; or

[0053] The MBS interest indication information of the terminal device, where the MBS interest indication information indicates at least one of the following: the frequency of the broadcast service that the terminal device is receiving or interested in receiving, the session identifier of the MBS service that the terminal device is receiving or interested in receiving, or the priority of the terminal device receiving unicast and broadcast services.

[0054] Combined with the second aspect, in some implementation manners of the second aspect, the second measurement data includes at least one of the following: the data volume of the downlink packet data convergence protocol (PDCP) service data unit (SDU); the downlink average user throughput; the downlink packet delay; or the downlink packet loss rate.

[0055] Combined with the second aspect, in some implementation manners of the second aspect, recording the second measurement data includes: when the distribution mode of the first MBS service is broadcast or multicast, recording the second measurement data in units of each MRB, or recording the second measurement data in units of each terminal device and each MRB.

[0056] Combined with the second aspect, in some implementation manners of the second aspect, recording the second measurement data includes: when the distribution mode of the first MBS service is unicast, recording the second measurement data in units of each data radio bearer (DRB), or recording the second measurement data in units of each terminal device and each DRB.

[0057] In the above technical solution, when the distribution modes of the MBS services are different, the network device records the second measurement data in different granularities, which helps to achieve different degrees of regulation of the MBS services.

[0058] Combined with the second aspect, in some implementation manners of the second aspect, the second measurement data further includes the number of terminal devices receiving the first MBS service.

[0059] In combination with the second aspect, in some implementations of the second aspect, the number of terminal devices receiving the first MBS service includes at least one of the following:

[0060] The number of terminal devices receiving the first MBS service in the serving cell of the network device;

[0061] The number of terminal devices determined by taking each MBS service or session identifier in the first MBS service as a granularity;

[0062] The number of terminal devices determined by taking each MBS broadcast service in the first MBS service as a granularity;

[0063] The number of terminal devices determined by taking each MBS multicast service in the first MBS service as a granularity; or

[0064] The number of terminal devices determined by taking each MRB in the first MBS service as a granularity.

[0065] For the beneficial effects not elaborately described in the second aspect, reference can be made to the description in the first aspect and will not be repeated here.

[0066] In a third aspect, an embodiment of the present application provides a communication device. The communication device may be a device or apparatus with a chip, or a device or apparatus integrated with a circuit, or a chip, chip system, module, or control unit in the aforementioned shown device or apparatus. Specifically, the present application does not make a limitation. It should be noted that in the present application, when referring to the communication device, it may refer to the communication device itself, or a chip, functional module, or integrated circuit in the communication device that implements the method provided by the present application. Specifically, the present application does not make a limitation. The device is used to execute the method provided in the first aspect or the second aspect. Specifically, the device may include units and / or modules for executing the method provided in any implementation of the first aspect or the second aspect, such as a transceiver unit (or transceiver module) and a processing unit (or processing module).

[0067] In some implementations, the processing unit may be at least one processor. The transceiver unit may be a transceiver, or an input / output interface. Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0068] In some implementations, the communication device is a chip, chip system, or circuit in a terminal device or a network device. The transceiver module may be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit, etc. on the chip, chip system, or circuit. The processing unit may be at least one processor, processing circuit, or logic circuit, etc.

[0069] Fourthly, an embodiment of the present application provides a processor for executing the methods provided in the above aspects. For operations such as sending and receiving involved in the processor, if there is no special description, or if it does not conflict with its actual role or internal logic in the relevant description, it can be understood as the operations of the processor for outputting, receiving, inputting, etc., or it can also be understood as the sending and receiving operations performed by the radio frequency circuit and the antenna. The present application does not make any limitations in this regard.

[0070] Fifthly, an embodiment of the present application provides a communication system, which includes a terminal device and a network device. The terminal device can execute the method provided by any one of the implementation manners in the first aspect above; the network device can execute the method provided by any one of the implementation manners in the second aspect above.

[0071] Sixthly, an embodiment of the present application provides a computer-readable storage medium. The computer-readable storage medium stores instructions or program codes, and when the instructions or program codes are executed by a processor, the methods provided by any one of the implementation manners in the first aspect or the second aspect above can be implemented.

[0072] Seventhly, an embodiment of the present application provides a computer program product containing instructions. When the computer program product runs on a computer, it causes the computer to execute the methods provided by any one of the implementation manners in the first aspect or the second aspect above.

[0073] Eighthly, an embodiment of the present application provides a chip. The chip includes a processor and a communication interface. The processor reads instructions stored on a memory through the communication interface and executes the methods provided by any one of the implementation manners in the first aspect or the second aspect above.

[0074] Optionally, as an implementation manner, the chip further includes a memory, and a computer program or instructions are stored in the memory. The processor is used to execute the computer program or instructions stored on the memory. When the computer program or instructions are executed, the processor is used to execute the methods provided by any one of the implementation manners in the first aspect or the second aspect above.

[0075] For the beneficial effects brought by the third aspect to the eighth aspect above, reference can be specifically made to the description of the beneficial effects in the first aspect or the second aspect, and details are not described herein again. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] Figure 1 is a schematic diagram of the communication system applied in the embodiment of the present application.

[0077] Figure 2 is a schematic diagram of the transmission of MBS service data provided by the embodiment of the present application.

[0078] Figure 3It is a schematic flowchart of the communication method provided by an embodiment of the present application.

[0079] Figure 4 It is another schematic flowchart of the communication method provided by an embodiment of the present application.

[0080] Figure 5 It is yet another schematic flowchart of the communication method provided by an embodiment of the present application.

[0081] Figure 6 It is yet another schematic flowchart of the communication method provided by an embodiment of the present application.

[0082] Figure 7 It is a schematic diagram of the communication device provided by an embodiment of the present application.

[0083] Figure 8 It is another schematic diagram of the communication device provided by an embodiment of the present application.

[0084] Figure 9 It is a schematic diagram of a chip system provided by an embodiment of the present application. Detailed implementation manners

[0085] Next, the technical solutions in the present application will be described with reference to the accompanying drawings.

[0086] For the convenience of understanding the embodiments of the present application, the following points are first explained.

[0087] I. Unless otherwise specified, the meaning of "a plurality" is two or more.

[0088] II. If there is no special description and logical conflict, the terms and / or descriptions between different embodiments of the present application are consistent and can be mutually referred to. The technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0089] III. The various digital numbers involved in the present application are only for the convenience of description and do not limit the protection scope of the present application. The magnitude of the serial numbers involved in the present application does not mean the sequence of execution. The execution sequence of each process should be determined by its function and internal logic. For example, the terms "first", "second", "third", "fourth" and other various term numbers in the specification, claims and drawings of the present application (if any) are used to distinguish similar objects and do not have to be used to describe a specific sequence or order. Among them, such data can be interchanged under appropriate circumstances so that the embodiments described here can be implemented in an order other than that illustrated or described here.

[0090] At the same time, any embodiment or design described in this application as "exemplarily" or "for example" should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a specific way for ease of understanding.

[0091] IV. The terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units need not be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0092] V. In this application, "for indicating" can be understood as "enabling", and "enabling" can include direct enabling and indirect enabling. When describing that a certain piece of information is used to enable A, it may include that this information directly enables A or indirectly enables A, and it does not necessarily mean that A is carried in this information.

[0093] The information enabled by the information is called the information to be enabled. In the specific implementation process, there are many ways to enable the information to be enabled. For example, but not limited to, the information to be enabled can be directly enabled, such as the information to be enabled itself or the index of the information to be enabled, etc. It is also possible to indirectly enable the information to be enabled by enabling other information, where there is an association relationship between this other information and the information to be enabled. It is also possible to only enable a part of the information to be enabled, while other parts of the information to be enabled are known or pre-agreed. For example, it is also possible to achieve the enabling of specific information by relying on the pre-agreed (such as protocol-defined) arrangement order of each piece of information, thereby reducing the enabling overhead to a certain extent. At the same time, the common parts of each piece of information can be identified and enabled uniformly to reduce the enabling overhead caused by enabling the same information separately.

[0094] VI. In this application, "pre-configuration" may include pre-definition. For example, protocol definition. Among them, "pre-definition" can be achieved by pre-saving the corresponding code, table, or other means that can be used to indicate relevant information in a device (for example, including each network element). This application does not limit its specific implementation method.

[0095] VII. The "storage" or "saving" involved in this application may refer to being saved in one or more memories. One or more memories can be set separately, or can be integrated in an encoder or decoder, a processor, or a communication device. One or more memories can also be partially set separately and partially integrated in a decoder, a processor, or a communication device. The type of memory can be any form of storage medium, and this is not limited.

[0096] VIII. The "protocol" involved in this application may refer to a standard protocol in the communication field. For example, it may include protocols for the fourth generation (4G) network, the fifth generation (5G) network, the new radio (NR) protocol, the 5.5G network protocol, the sixth generation (6G) network protocol, and related protocols applied to future communication systems. This application does not make any limitations in this regard. th generation, 4G) network, the fifth generation (5 th generation, 5G) network protocol, the new radio (NR) protocol, the 5.5G network protocol, the sixth generation (6 th generation, 6G) network protocol, and related protocols applied to future communication systems. This application does not make any limitations in this regard.

[0097] IX. In the schematic diagrams in the attached drawings of this application, the arrows or boxes shown as dotted lines represent optional steps or optional modules.

[0098] X. Unless otherwise specified, " / " means that the objects associated before and after are in an "or" relationship. For example, A / B may represent A or B. The "and / or" in this application is merely a description of the association relationship between associated objects, indicating that there can be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. Here, A and B can be singular or plural.

[0099] For ease of understanding, the following uses the Figure 1 shown communication system as an example to describe the communication systems to which the embodiments in this application can be applied.

[0100] As Figure 1 shown, the communication system includes a radio access network (RAN) 100 and a core network (CN) 200. The RAN 100 includes at least one RAN node (such as Figure 1 110a and 110b in Figure 1 , collectively referred to as 110) and at least one terminal device (such as Figure 1 120a - 120j in Figure 1 , collectively referred to as 120). Other RAN nodes may also be included in the RAN, such as, for example, wireless relay devices and / or wireless backhaul devices ( Figure 1 not shown in Figure 1 ) and so on. The terminal device 120 is connected to the RAN node 110 wirelessly. The RAN node 110 is connected to the core network 200 wirelessly or by wire. The core network devices in the core network 200 and the RAN nodes 110 in the RAN 100 may be different physical devices respectively, or may be the same physical device integrating the core network logic function and the radio access network logic function.

[0101] The RAN 100 may be a cellular system related to the 3rd generation partnership project (3GPP), for example, a 4G, 5G, or 6G mobile communication system, a non-terrestrial network (NTN) system, or an evolved system for the future. The RAN 100 may also be an open RAN (O-RAN or ORAN), a cloud radio access network (CRAN), or a wireless fidelity (WiFi) system, or a communication system that combines two or more of the above systems.

[0102] In a communication system, one device may send a signal to another device or receive a signal from another device. Among them, the signal may include information, signaling, or data, etc. Among them, the device may also be replaced by an entity, a network entity, a communication device, a communication module, a node, a communication node, etc. In this embodiment of the present application, the device is described as an example.

[0103] In the embodiments of the present application, the terminal device is a device with wireless transceiver functions, which may refer to a user equipment (UE), an access terminal, a subscriber unit, a user station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user device.

[0104] In the embodiments of the present application, the terminal device may also be a satellite phone, a cellular phone, a smart phone, a wireless data card, a wireless modem, a machine type communication device, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a customer-premises equipment (CPE), a smart point of sale (POS) machine, a handheld device with wireless communication function, a computing device or other processing devices connected to a wireless modem, a vehicle-mounted device, a communication device carried on a high-altitude aircraft, a wearable device, a drone, a robot, a terminal in device-to-device (D2D) communication, a terminal in vehicle-to-everything (V2X) communication, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, or a terminal device in a communication network evolved after 5G, etc., and there is no limitation thereto. In the embodiments of the present application, the device for implementing the functions of the terminal device may be the terminal device or a device capable of supporting the terminal device to implement such functions, such as a chip system or a chip, and this device may be installed in the terminal device. In the embodiments of the present application, the chip system may be composed of chips or may include chips and other discrete devices.

[0105] In the embodiments of the present application, the terminal device may also be a device with communication function in a 6G communication system, and the form or type of the terminal device in 6G and other future communication systems is not limited.

[0106] In the embodiments of the present application, the RAN node 110 may also be referred to as an access network device, an access node or a RAN entity, and is used to help the terminal device achieve wireless access. Multiple RAN nodes 110 may be of the same type of node or different types of nodes. In some scenarios, the roles of the RAN node 110 and the terminal device 120 are relative. For example,Figure 1 The intermediate network element 120i can be a helicopter or a drone, which can be configured as a mobile base station. For the terminals 120j accessing the RAN 100 through the network element 120i, the network element 120i is a base station; but for the base station 110a, the network element 120i is a terminal device. The RAN nodes 110 and the terminal devices 120 are sometimes both called communication devices. For example Figure 1 The intermediate network elements 110a and 110b in the figure can be understood as communication devices with base station functions, and the network elements 120a - 120j can be understood as communication devices with terminal functions.

[0107] In a possible scenario, the RAN node 110 can also become a network device, which can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next generation NodeB (gNB), a next generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc. The RAN node can be a macro base station (such as Figure 1 110a in the figure), a micro base station or an indoor station (such as Figure 1 110b in the figure), a relay node or a donor node, or a radio controller in a CRAN scenario. Optionally, the RAN node can also be a server, a wearable device, a vehicle or an in-vehicle device, etc. For example, the network device in vehicle to everything (V2X) technology can be a road side unit (RSU).

[0108] In another possible scenario, multiple RAN nodes cooperate to assist a terminal in achieving wireless access, and different RAN nodes respectively implement partial functions of a base station. For example, the RAN node can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately set, or can also be included in the same network element, such as a baseband unit (BBU). The CU node and the DU node split the protocol layers of the gNB, and the functions of some protocol layers are centrally controlled by the CU, and the functions of the remaining part or all protocol layers are distributed in the DU, and the DU is centrally controlled by the CU. As an implementation method, the CU deploys the radio resource control (RRC) layer, the packet data convergence protocol (PDCP) layer, and the service data adaptation protocol (SDAP) layer in the protocol stack; the DU deploys the radio link control (RLC) layer, the media access control (MAC) layer, and the physical layer (PHY) in the protocol stack. Thus, the CU has the processing capabilities of RRC, PDCP, and SDAP. The DU has the processing capabilities of RLC, MAC, and PHY. It can be understood that the above splitting of functions is only an example and does not constitute a limitation on the CU and the DU. The RU can be included in a radio frequency device or a radio frequency unit, such as being included in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0109] In different systems, the CU (or CU-CP and CU-UP), DU, or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, the CU may also be referred to as O-CU (Open CU), the DU may also be referred to as O-DU, the CU-CP may also be referred to as O-CU-CP, the CU-UP may also be referred to as O-CU-UP, and the RU may also be referred to as O-RU. For the convenience of description, in this application, the CU, CU-CP, CU-UP, DU, and RU are used as examples for description. Any unit among the CU (or CU-CP, CU-UP), DU, and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0110] Optionally, for network elements in the ORAN system, each network element may implement the protocol layer functions as shown in Table 1 below.

[0111] Table 1

[0112]

[0113] It should be noted that in the ORAN system, the network device in this application may be one or more network elements in Table 1 above.

[0114] In the embodiments of this application, the core network device 200 refers to a device in the core network (CN) that provides service support for the terminal device 120. Currently, some examples of core network devices are: access and mobility management function (AMF) entity, session management function (SMF) entity, user plane function (UPF) entity, etc., which are not listed one by one here. Among them, the AMF entity may be responsible for access management and mobility management of the terminal device; the SMF entity may be responsible for session management, such as session establishment of users, etc.; the UPF entity may be a functional entity of the user plane, mainly responsible for connecting to the external network. It should be noted that in this application, an entity may also be referred to as a network element or a functional entity. For example, the AMF entity may also be referred to as the AMF network element or the AMF functional entity. Another example is that the SMF entity may also be referred to as the SMF network element or the SMF functional entity, etc.

[0115] In the embodiments of the present application, the device for implementing the functions of a network device may be a network device; it may also be a device capable of supporting the network device to implement such functions, such as a chip system, a hardware circuit, a software module, or a combination of a hardware circuit and a software module. This device may be installed in the network device or used in matching with the network device. In the embodiments of the present application, only the case where the device for implementing the functions of the network device is a network device is taken as an example for illustration, which does not limit the solutions of the embodiments of the present application.

[0116] It should be noted that the embodiments of the present application do not limit the scenarios where the network device / terminal device is located. In addition, the network device / terminal device may be a hardware device, or may be a software function running on dedicated hardware or software function running on general hardware. For example, it is an entity including dedicated or general hardware devices and software functions. The present application does not limit the specific form of the network device / terminal device.

[0117] For ease of understanding and description, the related terms involved in the embodiments of the present application will be briefly described below.

[0118] 1. MDT

[0119] An automated drive test technology that obtains relevant parameters required for network optimization by means of the terminal device reporting measurement reports or the network device itself recording measurement data. Through MDT, the network performance can be evaluated. For example, it can detect whether there are weak coverage or coverage hole situations in the network, and then achieve coverage optimization (such as improving coverage holes, weak coverage, over-coverage, and uplink coverage, etc.).

[0120] For different data collection objects, MDT has two network management configuration methods, namely management-based MDT and signaling-based MDT. Management-based MDT can record the MDT measurement data of all terminal devices in a certain cell, and the cell can be specified through a tracking area / cell global identifier (TA / CGI) list; signaling-based MDT can record the MDT measurement data of a specific one or more terminal devices, and the specific one or more terminal devices can be specified by the operation, administration, and maintenance network element (OAM) of the core network.

[0121] According to the differences in the state of the terminal device and the measurement reporting mechanism, MDT can include logged MDT and fast MDT (or immediate MDT). Specifically as follows:

[0122] 1) Logged MDT: It refers to the collection and storage of measurement data by the terminal device when it is in the RRC idle state and the RRC inactive state. The terminal device indicates the existence of measurement data to the network device in the RRC message. When the network device requests the measurement data from the terminal device, the terminal device then reports the measurement data to the network device.

[0123] The network device can send configuration parameters to the terminal device in the RRC connected state to enable it to collect measurement data using Logged MDT. Among them, the configuration parameters can include: triggering recording conditions (such as time-triggered, periodic-triggered), recording duration, and recording area, etc.; the form of the recording area can include at least one of the following: public land mobile network (PLMN) list, TA list, CGI list, frequency band list. The terminal device collects measurement data within the configured recording area. When the recording duration times out or the terminal device receives a new Logged MDT measurement configuration, the terminal device stops collecting measurement data. The above measurement data includes but is not limited to: measurement results of coverage-related serving / neighboring cells, cell identification information, location information, time information, tracking information, etc.

[0124] 2) Quick MDT: Measurements performed when the terminal device is in the RRC connected state. Both the terminal device and the network device can collect measurement data, and the terminal device can immediately report the measurement data to the network device.

[0125] The measurement configuration of Quick MDT adds location information to the existing RRC measurement configuration, and can also add information about the recording area to indicate that the terminal device performs Quick MDT collection in a specific area. The measurement data collected by the terminal device can include one or more of the following: measurement results of coverage-related serving / neighboring cells, location information, power headroom measurement, packet data convergence protocol (PDCP) delay measurement results at the L2 layer (i.e., the data link layer). The measurement results on the network device side, i.e., the L2 layer measurement results, can include but are not limited to physical resource block (PRB) utilization, throughput, PDCP data volume, packet loss rate, packet drop rate, the number of active terminal devices, and packet delay.

[0126] 2. MBS

[0127] A data distribution / transmission method, in which a network device can distribute / transmit the same content to multiple terminal devices simultaneously, enabling efficient utilization of NR resources. MBS can provide any one of the following MBS services: broadcast service, multicast service, and unicast service. Among them, the broadcast service is an MBS service delivered in a broadcast manner, which means that the data of the same MBS service is provided to all terminal devices in the MBS service area simultaneously (all terminal devices in the MBS service area are authorized to receive this data); the multicast service is an MBS service delivered in a multicast manner, which means that the data of the same MBS service is provided to a group of terminal devices simultaneously (i.e., not all terminal devices in the MBS service area are authorized to receive the data). The network device delivers the broadcast service to the terminal devices through a broadcast session. Terminal devices in the radio resource control (RRC) idle state, RRC inactive state, and RRC connected state can all receive the relevant broadcast service. The broadcast service only supports the point-to-multipoint (PTM) delivery mechanism and does not support the hybrid automatic repeat request (HARQ). The network device delivers the multicast service to the terminal devices through a multicast session. Terminal devices in the RRC connected state can receive the multicast service and use delivery mechanisms such as point-to-point (PTP) and / or PTM. HARQ can be applied to PTP and PTM transmissions. The unicast service is an MBS service delivered in a unicast manner, which means that the RAN that does not support MBS sends the data of the MBS service to the terminal device in a unicast manner.

[0128] According to whether the network device supports MBS, the transmission modes for transmitting the data of MBS services can be divided into two types, namely the shared delivery mode and the individual delivery mode:

[0129] 1) Shared delivery mode: It can also be called the "multicast / broadcast" method or the "groupcast" method. The shared delivery mode means that the transmission tunnel (or called the transmission channel) between the UPF and the RAN, and the transmission tunnel between the RAN and the UE (on the air interface side) are shared by multiple UEs within the multicast group. When the network device supports MBS, the shared delivery mode can be used to transmit the data of MBS services.

[0130] Take Figure 2 as an example. When transmitting data of the MBS service, the multicast / broadcast user plane function (MB-UPF) and RAN 1 can use a tunnel to transmit the data of the MBS service. For example, a tunnel based on the general tunnel protocol (GTP) is used. The tunnel used between the MB-UPF and RAN 1 to transmit the data of this MBS service is a multicast session sharing tunnel, and this multicast session sharing tunnel is shared by UE a, UE b, and UE c.

[0131] 2) Separate transmission mode: It can also be called the "unicast" method, which can be understood as "point to point" (PTP) communication. The unicast transmission mode means that the transmission tunnel between the UPF and the RAN, and the transmission tunnel between the RAN and the UE (on the air interface side) are dedicated to a single UE. The separate transmission mode can be used to transmit data of the MBS service (in a unicast manner) or data of the unicast service. When the network device does not support MBS, the separate transmission mode can be adopted. For example, take Figure 2 as an example. When RAN2 where UEd resides does not support MBS, the data of RAN2 comes from the unicast UPF. The transmission channel from the unicast UPF to RAN2 and the transmission channel on the air interface side from RAN2 to UEd are dedicated to UEd. The data transmission path is: multicast UPF → unicast UPF → RAN2 → UEd.

[0132] As described above, in the current technical background, it is impossible to measure and collect data for the MBS service, resulting in the inability of the network device to optimize the performance of the MBS service. In view of this, the embodiments of the present application provide a communication method, device, and system that can record measurement data for the MBS service to achieve performance optimization of the MBS service.

[0133] Figure 3 shows a schematic flowchart of the communication method provided by the embodiments of the present application. The method 300 can be applied to Figure 1 the system shown. The execution subject of the method 300 can be the terminal device and the first network device, or it can also be components of the terminal device and the first network device, such as a chip or a chip system or a circuit. The present application does not limit this. The steps described below as being executed by a single execution subject (such as a terminal device or a first network device) can also be divided into steps executed by multiple execution subjects, and these execution subjects can be logically and / or physically separated. The method 300 can include the following steps.

[0134] S310, the terminal device receives the first MBS service.

[0135] Exemplarily, the first MBS service may come from the first network device, or may also come from other network devices, such as the network device to which the cell where the terminal device is currently camped belongs, or the network device to which the serving cell belongs, or the network device to which the primary cell belongs, or the network device to which the neighboring cell belongs.

[0136] Exemplarily, the first MBS service may include one or more MBS services; the distribution method of the first MBS service (or the service type of the first MBS service) may also include one or more of unicast service, multicast service, and broadcast service.

[0137] S320, the terminal device records the first measurement data of the first MBS service, and the first measurement data is used to determine the coverage information and / or QoS information of the first MBS service.

[0138] Exemplarily, the behavior of the terminal device recording the measurement data of the MBS service can be predefined so that it records the measurement data of the MBS service when it receives the MBS service. Alternatively, the network device sending the first MBS service can instruct the terminal device to record the measurement data of the MBS service: the terminal device records the first measurement data when it receives the first MBS service.

[0139] Exemplarily, the method for the terminal device to record the first measurement data can be MDT measurement, or can also be other measurements, such as reports associated with a self-organizing network (SON), such as a radio link failure report, a random access report, an RRC connection establishment / recovery failure report, and a handover success report, one or more of them.

[0140] In some implementation manners, taking the first MBS service as one MBS service as an example, the first measurement data includes at least one of the following 1) to 10):

[0141] 1) The MBS session identifier of the first MBS service.

[0142] 2) The number of MRBs corresponding to the session of the first MBS service.

[0143] 3) The serving cell identifier information of the session providing the first MBS service. The serving cell can be the primary cell of the UE in the connected state, or can also be the special cell of the primary cell group and / or the special cell of the secondary cell group in dual connection, or can also be the cells included in the primary cell group and the special cells and secondary cells included in the secondary cell group, that is, the terminal device receives the MBS service session data from the serving cell.

[0144] 3) Provide the neighbor cell identification information of the session of the first MBS service.

[0145] 4) Information about the service area (MBS service area) corresponding to the first MBS service.

[0146] 5) Provide the measurement result of the downlink reference signal corresponding to the cell of the first MBS service.

[0147] 6) Provide the measurement result of the downlink reference signal corresponding to the cell of the second MBS service, where the second MBS service is other services except the first MBS service.

[0148] 7) The block error rate (BLER) corresponding to the session of the first MBS service; where BLER is the ratio of the number of blocks received in error by the terminal device to the total number of blocks sent by the network device within a period of time, that is, the error rate after the transmitted blocks pass through the cyclic redundancy check (CRC) within a period of time, and "block" refers to a series of consecutive bits related to the channel. When any bit in the block has an error, the block is called an erroneous block.

[0149] 8) The distribution mode indication information of the first MBS service, or the service type indication information of the first MBS service. The distribution mode indication information is used to indicate that the distribution mode of the first MBS service is one of broadcast, multicast, or unicast, or the service type is one of broadcast, multicast, or unicast.

[0150] 9) When the distribution mode of the first MBS service is multicast, the first measurement data may further include the multicast distribution mechanism indication information of the first MBS service, and the multicast distribution mechanism indication information is used to indicate that the transmission mechanism of the first MBS service is PTP transmission or PTM transmission.

[0151] 10) The MBS interest indication information of the terminal device, and the MBS interest indication information indicates at least one of the following: the frequency of the broadcast service that the terminal device is receiving or interested in receiving, the session identifier of the MBS service that the terminal device is receiving or interested in receiving, or the priority of the terminal device receiving unicast services and broadcast services.

[0152] Wherein, a service that the terminal device is interested in receiving can be understood as a service that the terminal device wants to receive, that is, the terminal device has not received the service temporarily, but hopes to receive the service in the subsequent communication process.

[0153] In some implementation manners, the ways for the terminal device to record the first measurement data include any one of the following examples:

[0154] In one example, the terminal device uses the logging MDT to record the first measurement data.

[0155] In another example, the terminal device determines the MDT mode for recording the first measurement data according to the distribution mode of the first MBS service. More specifically, when the distribution mode of the first MBS service is broadcast, the terminal device uses the logging MDT to record the first measurement data; or when the distribution mode of the first MBS service is multicast or unicast, the terminal device uses the fast MDT to record the first measurement data.

[0156] In yet another example, the terminal device determines the MDT mode for recording the first measurement data according to the RRC state. More specifically, when the terminal device is in the RRC idle state or the RRC inactive state, the logging MDT is used to record the first measurement data; when the terminal device is in the RRC connected state, the fast MDT is used to record the first measurement data.

[0157] In some implementations, before executing S320, the method further includes: the terminal device receives measurement configuration information from a second network device, and the measurement configuration information instructs the terminal device to record the first measurement data.

[0158] Wherein, the measurement configuration information may indicate at least one of the following 1) to 3):

[0159] 1) At least one MBS session identifier, and each MBS session identifier in the at least one MBS session identifier is used to identify at least one MBS service; wherein, the MBS service indicated by the at least one MBS session identifier may include the first MBS service.

[0160] 2) At least one MBS service area, and each MBS service area in the at least one MBS service area provides at least one MBS service, wherein, the MBS service provided by the at least one MBS service area may include the first MBS service.

[0161] Exemplarily, the at least one MBS service area may be indicated by one or more of a TA list, a cell list, and a PLMN list.

[0162] 3) At least one downlink frequency point supporting the MBS service, wherein, the MBS service transmitted by the at least one downlink frequency point supporting the MBS service may include the first MBS service.

[0163] Exemplarily, the measurement configuration information may be sent or indicated by the core network (such as an AMF entity) to the second network device; the second network device may send the measurement configuration information to the terminal device through an RRC message.

[0164] Exemplarily, the second network device and the network device that sends the first MBS service to the terminal device may be the same network device.

[0165] Further, the terminal device records first measurement data of the first MBS service, including: recording the first measurement data according to measurement configuration information. More specifically, when at least one MBS session identifier indicates the first MBS service and the terminal device receives the first MBS service, the first measurement data is recorded; or, when the terminal device receives the first MBS service within at least one MBS service area, the first measurement data is recorded; or, when the terminal device receives the first MBS service on at least one downlink frequency point supporting the MBS service, the first measurement data is recorded.

[0166] S330, the terminal device sends the first measurement data to the first network device.

[0167] Exemplarily, the first network device and the above-mentioned second network device may be the same network device.

[0168] In some implementation manners, the method further includes: the terminal device sends indication information to the first network device, and the indication information indicates the existence of the first measurement data; further, the terminal device receives request information from the first network device, and the request information is used to request the first measurement data. The terminal device sending the first measurement data to the first network device includes: the terminal device sending the first measurement data to the first network device according to the request information. For example, when the terminal device uses recorded MDT to record the first measurement data, the terminal device may send the first measurement data to the first network device in the above manner. It should be understood that the first measurement data is different from ordinary MDT data, and the first measurement data is measurement data of the MBS service.

[0169] When the terminal device uses fast MDT to record the first measurement data, the terminal device may send the first measurement data to the first network device immediately after recording the first measurement data, without the request of the first network device.

[0170] Among them, for the indication information sent by the terminal device to the first network device, the request information received by the terminal device from the first network device, and the first measurement data sent by the terminal device to the first network device, the information transmission between the above terminal device and the network device can be direct transmission or forwarded through the network device to which the primary cell of the terminal device belongs.

[0171] Exemplarily, the terminal device may send the indication information through an RRC message, and the above RRC message includes but is not limited to: RRC resume complete message, RRC re-establishment complete message, RRC establishment complete message, RRC re-configuration complete message.

[0172] It should be noted that in actual implementation, the first network device may obtain the measurement data of the first MBS service recorded by multiple terminal devices.

[0173] In some implementations, when the first MBS service is sent by the first network device, the method 300 may further include S340: The first network device records second measurement data of the first MBS service.

[0174] In some implementations, the second measurement data may include at least one of the following: the amount of downlink PDCP SDU data (or the M4 measurement result), the average downlink user throughput rate (or the M5 measurement result), the downlink packet delay (or the M6 measurement result), the downlink packet loss rate (or the M7 measurement result), and the number of terminal devices receiving the first MBS service.

[0175] Wherein, when the distribution mode of the first MBS service is broadcast or multicast, the first network device performs one or more of the M4 measurement to the M7 measurement at the granularity of each MRB to obtain one or more of the M4 measurement result to the M7 measurement result. Alternatively, when the distribution mode of the first MBS service is broadcast or multicast, the first network device performs one or more of the M4 measurement to the M7 measurement at the granularity of each terminal device and each MRB to obtain one or more of the M4 measurement result to the M7 measurement result. When the distribution mode of the first MBS service is unicast, the first network device performs one or more of the M4 measurement to the M7 measurement at the granularity of each DRB to obtain one or more of the M4 measurement result to the M7 measurement result. Alternatively, when the distribution mode of the first MBS service is unicast, the first network device records and performs one or more of the M4 measurement to the M7 measurement at the granularity of each terminal device and each DRB to obtain one or more of the M4 measurement result to the M7 measurement result.

[0176] Exemplarily, when the first network device performs the M6 measurement, the downlink packet delay may be determined according to the HARQ ACK value in the RLC unacknowledged mode (UM) or the RLC ACK value in the RLC acknowledged mode (AM). When the first network device performs the M7 measurement, the downlink packet loss rate may be determined according to the HARQ ACK value and NACK value in the RLC UM mode, or the RLC ACK value and NACK value in the RLC AM mode.

[0177] In some implementations, the first MBS service includes one or more MBS services. The number of terminal devices receiving the first MBS service may include at least one of the following: the number of terminal devices receiving the first MBS service in the serving cell of the first network device; the number of terminal devices determined by each MBS service or session identifier in the first MBS service; the number of terminal devices determined by each MBS broadcast service in the first MBS service; the number of terminal devices determined by each MBS multicast service in the first MBS service; the number of terminal devices determined by each MRB in the first MBS service.

[0178] In some implementations, the first network device optimizes the performance of the first MBS service according to the first measurement data and / or the second measurement data. For example, it adjusts the frequency points supporting the MBS service, the number of MRBs, the MBS service type (MBS session), the MBS distribution method, the multicast mechanism, etc., to optimize the performance of the first MBS service and improve the user experience of the first MBS service. Exemplarily, when the first measurement data and the second measurement data are MDT data, the first network device can implement coverage optimization based on MDT, QoS verification based on MDT, etc.

[0179] The communication method provided by the embodiments of this application provides a method for recording measurement data of MBS services, which helps to optimize the performance of MBS services.

[0180] Figure 4 FIG. shows another schematic flowchart of the communication method provided by the embodiments of this application. Method 400 can be regarded as a further description of Method 300, or Method 400 can be regarded as a refinement of the application scenario of Method 300. The execution subject of Method 400 can be a terminal device and a network device, or can also be components of a terminal device and a network device, such as a chip or a chip system or a circuit. This application does not limit this. Method 400 may include the following steps.

[0181] S410, The network device 2 sends measurement configuration information to the terminal device.

[0182] Exemplarily, the content of the measurement configuration information can refer to the description in Method 300 and will not be elaborated here. The network device 2 can be regarded as an example of the second network device in Method 300.

[0183] S420, The network device 1 sends the first MBS service to the terminal device.

[0184] Exemplarily, the network device 1 can be regarded as an example of the first network device in Method 300; the first MBS service can be the first MBS service of Method 300.

[0185] In some implementations, network device 2 may be the serving network device when the terminal device is in the connected state, and network device 1 may be the serving network device for the terminal device when it enters the connected state again or always remains in the connected state; or, network device 1 is the network device to which the cell where the terminal device currently camps belongs, and network device 2 is the serving network device in the connected state before the terminal device enters the inactive / idle state; or network device 2 may be the network device to which the cell where the terminal device camps belongs, network device 1 is the network device to which the cell reselected by the terminal device belongs, or the network device to which the cell where the terminal device always camps belongs

[0186] S430. The terminal device records the first measurement data of the first MBS service.

[0187] For the specific implementation of the terminal device recording the first measurement data, reference may be made to the description in S320, which will not be elaborated here. For example, the terminal device may record the first measurement data according to the measurement configuration information.

[0188] S460. The terminal device sends the first measurement data to network device 1.

[0189] For the specific implementation of the terminal device sending the first measurement data to network device 1, reference may be made to the description in S330, which will not be elaborated here.

[0190] Optionally, method 400 may further include S430': Network device 1 records the second measurement data of the first MBS service.

[0191] Optionally, before executing S460, method 400 may further include S440 and S450. For example, when the terminal device uses recorded MDT to record the first measurement data, it may also execute: S440. The terminal device sends indication information to network device 1, and the indication information indicates the existence of the first measurement data; S450. Network device 1 sends request information to the terminal device, and the request information is used to request the first measurement data.

[0192] In this application, network device 1 may adjust the frequency points supporting the MBS service, the number of MRBs, the MBS service type (MBS session), the MBS distribution method, the multicast mechanism, etc. related to the first MBS service according to the received first measurement data and / or the second measurement data recorded by itself.

[0193] Figure 5Fig. 0 shows another schematic flowchart of the communication method provided by the embodiments of the present application. Method 500 can be regarded as a further explanation of method 300, or method 500 can be regarded as a refinement of the application scenario of method 300. The execution subject of method 500 can also be a terminal device and a network device, or can also be a component of a terminal device and a network device, such as a chip or a chip system or a circuit. The present application does not limit this. Method 500 can include the following steps.

[0194] S510, the network device 2 sends measurement configuration information to the terminal device.

[0195] Exemplarily, the content of the measurement configuration information can refer to the description in method 300 and will not be elaborated here. The network device 2 can be regarded as an example of the second network device in method 300.

[0196] S520, the network device 2 sends the first MBS service to the terminal device.

[0197] Exemplarily, the first MBS service can be the first MBS service of method 300.

[0198] S530, the terminal device records the first measurement data of the first MBS service.

[0199] For the specific implementation of the terminal device to record the first measurement data, reference can be made to the description in S320 and will not be elaborated here. For example, the terminal device can record the first measurement data according to the measurement configuration information.

[0200] S560, the terminal device sends the first measurement data to the network device 1.

[0201] Exemplarily, the network device 1 can be regarded as an example of the first network device in method 300. It should be understood that the network device 1 is a network device that can provide the first MBS service to the terminal device.

[0202] In some implementation manners, the network device 2 can be the serving network device to which the terminal device belongs in the connected state, or the network device to which the resident cell belongs. The network device 1 can be the serving network device when the terminal device enters the connected state again, or the serving network device that is always in the connected state.

[0203] Optionally, method 500 can further include S530': S530', the network device 2 records the second measurement data of the first MBS service;.

[0204] Optionally, before executing S560, method 500 may further include S540 and S550. For example, when the terminal device uses the recorded MDT to record the first measurement data, the following may also be executed: S540, the terminal device sends indication information to network device 1, and the indication information indicates the existence of the first measurement data; S550, network device 1 sends request information to the terminal device, and the request information is used to request the first measurement data.

[0205] In the embodiments of the present application, network device 1 may adjust the frequency points supporting the MBS service, the number of MRBs, the MBS service type (MBS session), the MBS distribution method, the multicast mechanism, etc. related to the first MBS service according to the received first measurement data and / or second measurement data.

[0206] Figure 6 Another schematic flowchart of the communication method provided by the embodiments of the present application is shown. Method 600 may be regarded as a further description of method 300, or method 600 may be regarded as a refinement of the application scenario of method 600. The execution subject of method 600 may be the terminal device and the network device, or may also be components of the terminal device and the network device, such as a chip or a chip system or a circuit, which is not limited in the present application. Method 600 may include the following steps.

[0207] S610, network device 2 sends measurement configuration information to the terminal device.

[0208] Exemplarily, the content of the measurement configuration information may refer to the description in method 300 and will not be elaborated here. Network device 2 may be regarded as an example of the second network device in method 300.

[0209] S620, network device 3 sends the first MBS service to the terminal device.

[0210] Exemplarily, the first MBS service may be the first MBS service of method 300.

[0211] S630, the terminal device records the first measurement data of the first MBS service.

[0212] The specific implementation of the terminal device recording the first measurement data may refer to the description in S320 and will not be elaborated here. For example, the terminal device may record the first measurement data according to the measurement configuration information.

[0213] S660, the terminal device sends the first measurement data to network device 1.

[0214] Exemplarily, network device 1 may be regarded as an example of the first network device in method 300. It should be understood that network device 1 is a network device that can provide the first MBS service to the terminal device.

[0215] In some implementations, network device 2 may be the serving network device to which the terminal device is connected. Network device 3 may be the network device to which the cell where the terminal device camps or the primary cell belongs. Network device 1 may be the serving network device (or called the target access network device) to which the terminal device re-enters the connected state or always remains in the connected state.

[0216] Optionally, method 600 may further include S630' and S630": S630', network device 3 records the second measurement data of the first MBS service.

[0217] Optionally, before executing S660, method 600 may further include S640 and S650. For example, when the terminal device uses the recorded MDT to record the first measurement data, the following may also be executed: S640, the terminal device sends indication information to network device 1, and the indication information indicates the existence of the first measurement data; S650, network device 1 sends request information to the terminal device, and the request information is used to request the first measurement data.

[0218] In the embodiments of the present application, network device 1 may adjust the frequency points supporting the MBS service, the number of MRBs, the MBS service type (MBS session), the MBS distribution method, the multicast mechanism, etc. related to the first MBS service according to the received first measurement data and / or second measurement data.

[0219] The above combination Figures 1 to 6 describes the communication method provided by the embodiments of the present application. In each embodiment of the present application, if there is no special description and logical conflict, the terms and / or descriptions between the embodiments are consistent and can be referenced to each other. The technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships. For example, any two or all of method 400, method 500, and method 600 can be combined.

[0220] The following combination Figures 7 to 9 Details of the communication device provided by the embodiments of the present application will be described below. It should be understood that the description of the device embodiments corresponds to the description of the method embodiments. Therefore, the content not described in detail can be referred to the above method embodiments. For the sake of brevity, it will not be repeated here.

[0221] Figure 7 It is a schematic block diagram of a communication device 2000 provided by the embodiments of the present application. The device 2000 includes a transceiver unit 2010 (or called a transceiver module) and a processing unit 2020 (or called a processing module). The transceiver unit 2010 may be used to implement the corresponding transceiver function, and the processing unit 2020 may be used to implement the corresponding processing function. The communication device may be used to execute Figures 3 to 6A method performed by a terminal device or a network device in any of the illustrated embodiments.

[0222] Optionally, the transceiver unit 2020 may include a transmitting unit and a receiving unit. The transmitting unit is configured to perform the transmitting operation in the foregoing method embodiments. The receiving unit is configured to perform the receiving operation in the foregoing method embodiments.

[0223] Optionally, the communication device 2000 further includes a storage unit, which can be used to store instructions and / or data. The processing unit 2020 can read the instructions and / or data in the storage unit so that the device can implement the relevant actions performed by the terminal device or the network device in the foregoing method embodiments.

[0224] In some implementation manners, the communication device 2000 is configured to perform the above Figures 3 to 6 actions performed by the terminal device in any of the illustrated embodiments.

[0225] Specifically, the transceiver unit 2010 is configured to: receive a first MBS service; the processing unit 2020 is configured to: record first measurement data of the first MBS service; the transceiver unit 2010 is further configured to: send the first measurement data to a first network device.

[0226] Optionally, the transceiver unit 2010 is further configured to: receive measurement configuration information from a second network device, where the measurement configuration information instructs the terminal device to record the first measurement data; the processing unit 2020 is configured to: record the first measurement data according to the measurement configuration information.

[0227] Optionally, the measurement configuration information indicates at least one of the following: at least one MBS session identifier, where each MBS session identifier in the at least one MBS session identifier is used to identify at least one MBS service; at least one MBS service area, where each MBS service area in the at least one MBS service area provides at least one MBS service; or at least one downlink frequency point supporting the MBS service. Then the processing unit 2020 is configured to perform at least one of the following: record the first measurement data when the at least one MBS session identifier indicates the first MBS service and the transceiver unit 2010 receives the first MBS service; record the first measurement data when the transceiver unit 2010 receives the first MBS service within the at least one MBS service area; or record the first measurement data when the transceiver unit 2010 receives the first MBS service at the at least one downlink frequency point supporting the MBS service.

[0228] Optionally, the processing unit 2020 is further configured to: determine a minimized drive test (MDT) mode for recording the first measurement data according to the distribution manner of the first MBS service; record the first measurement data in the MDT mode.

[0229] Optionally, the processing unit 2020 is further configured to: when the distribution mode of the first MBS service is broadcast, determine that the MDT mode is logging MDT; or, when the distribution mode of the first MBS service is multicast or unicast, determine that the MDT mode is fast MDT.

[0230] Optionally, the processing unit 2020 is further configured to: use logging MDT to record the first measurement data.

[0231] Optionally, the transceiver unit 2010 is further configured to: send indication information to the first network device, where the indication information indicates the existence of the first measurement data.

[0232] Optionally, the transceiver unit 2010 is further configured to: receive request information from the first network device, where the request information is used to request the first measurement data; and send the first measurement data to the first network device according to the request information.

[0233] In some implementation manners, the communication device 2000 is configured to perform the actions performed by the network device (such as the first network device, the second network device, or any one of network devices 1 to 3) in any one of the embodiments shown above Figures 3 to 6 in the embodiments shown.

[0234] Specifically, the transceiver unit 2010 is configured to: send the first MBS service to the terminal device; the processing unit 2020 is configured to: record second measurement data of the first MBS service, where the second measurement data is used to determine coverage information and / or QoS information of the first MBS service.

[0235] Optionally, the transceiver unit 2010 is further configured to: receive the first measurement data from the terminal device.

[0236] Optionally, the transceiver unit 2010 is further configured to: send measurement configuration information to the terminal device, where the measurement configuration information instructs the terminal device to record the first measurement data.

[0237] Optionally, the transceiver unit 2010 is further configured to: receive indication information from the terminal device, where the indication information indicates the existence of the first measurement data.

[0238] Optionally, the transceiver unit 2010 is further configured to: send request information to the terminal device, where the request information is used to request the first measurement data.

[0239] Optionally, the second measurement data includes at least one of the following: the downlink PDCP SDU data volume; the downlink average user throughput rate; the downlink packet delay; or the downlink packet loss rate. Then, the processing unit 2020 is configured to: when the distribution mode of the first MBS service is broadcast or multicast, record the second measurement data in terms of each MRB, or record the second measurement data in terms of each terminal device and each MRB. Alternatively, the processing unit 2020 is configured to: when the distribution mode of the first MBS service is unicast, record the second measurement data in terms of each DRB, or record the second measurement data in terms of each terminal device and each DRB.

[0240] Optionally, the second measurement data may further include: the number of terminal devices receiving the first MBS service. The number of terminal devices receiving the first MBS service includes at least one of the following: the number of terminal devices receiving the first MBS service in the cell served by the network device; the number of terminal devices determined by the processing unit 2020 in terms of each MBS service or session identifier in the first MBS service; the number of terminal devices determined by the processing unit 2020 in terms of each MBS broadcast service in the first MBS service; the number of terminal devices determined by the processing unit 2020 in terms of each MBS multicast service in the first MBS service; the number of terminal devices determined by the processing unit 2020 in terms of each MRB in the first MBS service.

[0241] It should be understood that the specific processes for the respective units to execute the above corresponding steps have been described in detail in the above method embodiments. For the sake of brevity, they will not be elaborated here.

[0242] It should also be understood that the apparatus 2000 is embodied in the form of functional units here. The term "unit" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor, or a group of processors, etc.) for executing one or more software or firmware programs, and a memory, a combined logic circuit, and / or other suitable components that support the described functions. In an alternative example, those skilled in the art can understand that the apparatus 2000 may specifically be the communication apparatus in the above embodiments, and may be used to execute the respective processes and / or steps corresponding to the communication apparatus in the above method embodiments. To avoid repetition, they will not be elaborated here.

[0243] The device 2000 in each of the above solutions has the function of implementing the corresponding steps performed by the communication device (such as a terminal device or a network device) in the above method. This function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as the processing unit, can be replaced by a processor to respectively perform the transceiver operations and related processing operations in each method embodiment.

[0244] In addition, the above transceiver unit 2020 can also be a transceiver circuit (for example, it can include a sending circuit, or can also include a receiving circuit), and the processing unit 2020 can be a processing circuit.

[0245] It should be noted that Figure 7 the device in can be the communication device (such as a terminal device or a network device) in the foregoing embodiment, or can be a chip or a chip system, for example: a system on chip (SoC). Among them, the transceiver unit can be an input / output circuit, a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip. It is not limited here.

[0246] Figure 8 FIG. shows a schematic diagram of another communication device 2100 provided by an embodiment of the present application. The device 2100 includes a processor 2110, the processor 2110 is coupled to a memory 2120, the memory 2120 is used to store computer programs or instructions and / or data, and the processor 2110 is used to execute the computer programs or instructions stored in the memory 2120, or read the data stored in the memory 2120 to execute the methods in the above method embodiments.

[0247] Optionally, the processor 2110 is one or more.

[0248] Optionally, the memory 2120 is one or more.

[0249] Optionally, the memory 2120 is integrated with the processor 2110 or is separately provided.

[0250] Optionally, as Figure 8 shown, the device 2100 further includes a transceiver 2130, and the transceiver 2130 is used for receiving and / or sending signals. For example, the processor 2110 is used to control the transceiver 2130 to receive and / or send signals.

[0251] As an example, the processor 2110 can have Figure 7Regarding the functions of the processing unit 2020 shown in [reference], the memory 2120 may have the functions of a storage unit, and the transceiver 2130 may have the Figure 7 functions of the transceiver unit 2020 shown in [reference].

[0252] As a solution, the device 2100 is used to implement the operations performed by a communication device (such as a terminal device or a network device) in the above method embodiments.

[0253] For example, the processor 2110 is used to execute the computer programs or instructions stored in the memory 2120 to implement the relevant operations of the communication device in the above method embodiments.

[0254] In some implementation manners, when the device 2100 is a terminal device, the transceiver 2130 may include a transmitter, a receiver, a radio frequency circuit, an antenna, and an input / output device. The processor 2110 is mainly used to process communication protocols and communication data, control the terminal device, execute software programs, process data of software programs, etc. The memory 2120 is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion between baseband signals and radio frequency signals and the processing of radio frequency signals. The antenna is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves. The input / output device (such as a touch screen, a display screen, a keyboard, etc.) is mainly used to receive data input by the user and output data to the user. It should be noted that some types of terminal devices may not have an input / output device.

[0255] When data needs to be sent, after the processor performs baseband processing on the data to be sent, it outputs a baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and then sends the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data.

[0256] In other implementation manners, when the device 2100 is a network device, such as a base station, the processor 2110 is mainly used for baseband processing and controlling the base station, etc.; the processor 2110 is usually the control center of the base station and is used to control the base station to perform the processing operations on the network device side in the above method embodiments. The memory 2120 is mainly used to store computer program codes and data. The transceiver 2130 is mainly used for the transceiver of radio frequency signals and the conversion between radio frequency signals and baseband signals; the transceiver 2130 may include an antenna and a radio frequency circuit (not shown in the figure), where the radio frequency circuit is mainly used for radio frequency processing.

[0257] In the embodiments of the present application, an antenna and a radio frequency circuit with transceiver functions can be regarded as the transceiver module of a terminal device or a network device, and a processor with processing functions can be regarded as the processing module of a terminal device or a network device.

[0258] In some implementation manners, the processor 2110 can also be referred to as a processing unit, a processing board, a processing module, a processing device, etc. The transceiver 2130 can also be referred to as a transceiver unit, a transceiver, a transceiver device, etc.

[0259] When the device 2100 is a chip, the chip includes a processor, a memory, and a transceiver. Among them, the transceiver can be an input / output circuit or a communication interface; the processor can be a processing module integrated on the chip, a microprocessor, or an integrated circuit. The sending operation of the terminal device in the above method embodiments can be understood as the output of the chip, and the receiving operation of the terminal device in the above method embodiments can be understood as the input of the chip.

[0260] It should be understood that the processor mentioned in the embodiments of the present application can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc.

[0261] It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory and / or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM). For example, the RAM can be used as an external cache. By way of example and not limitation, the RAM includes the following various forms: static random access memory (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0262] It should be noted that when the processor is a general-purpose processor, a DSP, an ASIC, an FPGA, or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components, the memory (storage module) can be integrated in the processor.

[0263] It should also be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0264] Figure 9 The schematic diagram of a chip system 2200 provided by the embodiments of the present application is shown. The chip system 2200 (or may also be referred to as a processing system) includes a logic circuit 2210 and an input / output interface 2220.

[0265] Among them, the logic circuit 2210 can be the processing circuit in the chip system 2200. The logic circuit 2210 can be coupled to a storage unit to call instructions in the storage unit, enabling the chip system 2200 to implement the methods and functions of the embodiments of the present application. The input / output interface 2220 can be the input / output circuit in the chip system 2200, outputting the information processed by the chip system 2200 or inputting the data or signaling information to be processed into the chip system 2200 for processing.

[0266] As a solution, the chip system 2200 is used to implement the operations performed by a communication device (such as a terminal device or a network device) in the above method embodiments.

[0267] For example, the logic circuit 2210 is used to implement the operations related to processing performed by a communication device (such as a terminal device or a network device) in the above method embodiments; the input / output interface 2220 is used to implement the operations related to sending and / or receiving performed by a communication device (such as a terminal device or a network device) in the above method embodiments.

[0268] The embodiments of the present application further provide a computer-readable storage medium, on which computer instructions for implementing the methods performed by a communication device (such as a terminal device or a network device) in the above method embodiments are stored.

[0269] For example, when the computer program is executed by a computer, the computer can implement the methods performed by a communication device (such as a terminal device) in the above method embodiments.

[0270] The embodiments of the present application further provide a computer program product, including instructions, which when executed by a computer, implement the methods performed by a communication device (such as a terminal device or a network device) in the above method embodiments.

[0271] Those skilled in the art can clearly understand that for the sake of convenience and brevity of description, the explanations and beneficial effects of the relevant content in any of the above communication devices can be referred to the corresponding method embodiments provided above, and will not be elaborated here.

[0272] In several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of devices or units can be in electrical, mechanical, or other forms.

[0273] The unit described as a separation component may or may not be physically separated. The component shown as a unit may or may not be a physical unit, that is, it may be located in one place or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0274] In addition, each functional unit in various embodiments of the present application may be integrated in a processing unit, may exist separately as individual physical units, or two or more units may be integrated in one unit. The above integrated unit may be implemented in the form of hardware or in the form of a software functional unit.

[0275] If the above integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the part that essentially contributes to the technical solution of the present application or all or part of the technical solution can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical discs that can store program codes.

[0276] As described above, the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of various embodiments of the present application.

Claims

1. A communication method, characterized in that, Executed by a terminal device or a chip for the terminal device, the method includes: Receiving a first Multicast / Broadcast Service (MBS) service; Recording first measurement data of the first MBS service, where the first measurement data is used to determine coverage information and / or Quality of Service (QoS) information of the first MBS service; Sending the first measurement data to a first network device.

2. The method according to claim 1, wherein The method further includes: Receiving measurement configuration information from a second network device, where the measurement configuration information instructs the terminal device to record the first measurement data; The recording of the first measurement data of the first MBS service includes: Recording the first measurement data according to the measurement configuration information.

3. The method according to claim 2, wherein The measurement configuration information indicates at least one of the following: At least one MBS session identifier, where each MBS session identifier in the at least one MBS session identifier is used to identify at least one MBS service; At least one MBS service area, where each MBS service area in the at least one MBS service area provides at least one MBS service; Or At least one downlink frequency point supporting the MBS service.

4. The method according to claim 3, wherein The recording of the first measurement data includes at least one of the following: When the at least one MBS session identifier indicates the first MBS service and the first MBS service is received, recording the first measurement data; When the first MBS service is received within the at least one MBS service area, recording the first measurement data; or, When the first MBS service is received at the at least one downlink frequency point supporting the MBS service, recording the first measurement data.

5. The method according to any one of claims 1 to 4, characterized in that, The method further includes: Determining a Minimized Drive Test (MDT) mode used to record the first measurement data according to the distribution method of the first MBS service; The recording of the first measurement data includes: Recording the first measurement data in the MDT mode.

6. The method according to claim 5, wherein The determining of the MDT mode used to record the first measurement data according to the distribution method of the first MBS service includes: When the distribution method of the first MBS service is broadcast, determining that the MDT mode is recording MDT; or, When the distribution method of the first MBS service is multicast or unicast, determining that the MDT mode is fast MDT.

7. The method according to any one of claims 1 to 4, characterized in that, The recording of the first measurement data includes: Recording the first measurement data using recording MDT.

8. The method according to any one of claims 1 to 7, characterized in that The method further includes: Sending indication information to the first network device, where the indication information indicates the existence of the first measurement data.

9. The method according to claim 8, wherein The method further includes: Receiving request information from the first network device, where the request information is used to request the first measurement data; The sending of the first measurement data to the first network device includes: Sending the first measurement data to the first network device according to the request information.

10. The method according to any one of claims 1 to 9, characterized in that, The first measurement data includes at least one of the following: The MBS session identifier of the first MBS service; The number of MBS Radio Bearers (MRBs) corresponding to the session of the first MBS service; The serving cell identifier information of the session providing the first MBS service; Provide the neighboring cell identification information of the session of the first MBS service; The service area information corresponding to the first MBS service; Provide the downlink reference signal measurement result of the cell corresponding to the first MBS service; Provide the downlink reference signal measurement result of the cell corresponding to the second MBS service, where the second MBS service is other services except the first MBS service; The block error rate corresponding to the session of the first MBS service; The distribution mode indication information of the first MBS service, where the distribution mode indication information is used to indicate that the distribution mode of the first MBS service is one of broadcast, multicast or unicast; The multicast distribution mechanism indication information of the first MBS service, where the multicast distribution mechanism indication information is used to indicate that the transmission mechanism of the first MBS service is point-to-point transmission or point-to-multipoint transmission; or The MBS interest indication information of the terminal device, where the MBS interest indication information indicates at least one of the following: the frequency of the broadcast service that the terminal device is receiving or interested in receiving, the session identifier of the MBS service that the terminal device is receiving or interested in receiving, or the priority of the terminal device receiving unicast service and broadcast service.

11. A communication method, characterized in that, Executed by a network device or a chip for the network device, the method includes: Send a first multicast / broadcast service (MBS service) to the terminal device; Record the second measurement data of the first MBS service, where the second measurement data is used to determine the coverage information and / or quality of service (QoS) information of the first MBS service.

12. The method according to claim 11, wherein The method further includes: Receive the first measurement data from the terminal device, where the first measurement data is the measurement data of the first MBS service, and the first measurement data is used to determine the coverage information and / or QoS information of the first MBS service.

13. The method according to claim 12, wherein The method further includes: Send measurement configuration information to the terminal device, where the measurement configuration information instructs the terminal device to record the first measurement data.

14. The method according to claim 13, wherein The measurement configuration information indicates at least one of the following: At least one MBS session identifier, where each MBS session identifier in the at least one MBS session identifier is used to identify at least one MBS service; At least one MBS service area, where each MBS service area in the at least one MBS service area provides at least one MBS service; Or At least one downlink frequency point supporting the MBS service.

15. The method according to any one of claims 12 to 14, characterized in that The method further includes: Receive indication information from the terminal device, where the indication information indicates the existence of the first measurement data.

16. The method according to claim 15, wherein The method further includes: Send request information to the terminal device, where the request information is used to request the first measurement data.

17. The method according to any one of claims 12 to 16, characterized in that, The first measurement data includes at least one of the following: The MBS session identifier of the first MBS service; The number of MBS radio bearers (MRBs) corresponding to the session of the first MBS service; Provide the serving cell identification information of the session of the first MBS service; Provide the neighboring cell identification information of the session of the first MBS service; The service area information corresponding to the first MBS service; Provide the downlink reference signal measurement result of the cell corresponding to the first MBS service; Provide the measurement result of the downlink reference signal corresponding to the cell providing the second MBS service, where the second MBS service is other services except the first MBS service; The block error rate corresponding to the first MBS session; The distribution mode indication information of the first MBS service, where the distribution mode indication information is used to indicate that the distribution mode of the first MBS service is one of broadcast, multicast, or unicast; The multicast distribution mechanism indication information of the first MBS service, where the multicast distribution mechanism indication information is used to indicate that the transmission mechanism of the first MBS service is point-to-point or point-to-multipoint; or The MBS interest indication information of the terminal device, where the MBS interest indication information indicates at least one of the following: the frequency of the broadcast service that the terminal device is receiving or interested in receiving, the session identifier of the MBS service that the terminal device is receiving or interested in receiving, or the priority of the unicast service and broadcast service received by the terminal device.

18. The method according to any one of claims 11 to 17, characterized in that, The second measurement data includes at least the following downlink packet data convergence protocol (PDCP) service data unit (SDU) data volume; The downlink average user throughput; The downlink packet delay; or The downlink packet loss rate.

19. The method according to claim 18, wherein Recording the second measurement data includes: When the distribution mode of the first MBS service is broadcast or multicast, record the second measurement data in units of each media resource block (MRB), or record the second measurement data in units of each terminal device and each MRB.

20. The method according to claim 18, wherein Recording the second measurement data includes: when the distribution mode of the first MBS service is unicast, record the second measurement data in units of each radio data bearer (DRB), or record the second measurement data in units of each terminal device and each DRB.

21. The method according to claim 18, wherein The second measurement data further includes the number of terminal devices receiving the first MBS service.

22. The method according to claim 21, wherein The number of terminal devices receiving the first MBS service includes at least one of the following: The number of terminal devices receiving the first MBS service in the serving cell of the network device; The number of terminal devices determined in units of each MBS service or session identifier in the first MBS service; The number of terminal devices determined in units of each MBS broadcast service in the first MBS service; The number of terminal devices determined in units of each MBS multicast service in the first MBS service; or The number of terminal devices determined in units of each MRB in the first MBS service.

23. A communication device, characterized in that, Include a module for performing the method according to any one of claims 1 to 10, or for performing the method according to any one of claims 11 to 22.

24. A communication device, characterized in that, Include a transceiver unit and a processing unit, where the transceiver unit and the processing unit are used to perform the method according to any one of claims 1 to 10, or to perform the method according to any one of claims 11 to 22.

25. A communication device, characterized in that, Comprising at least one processor, the at least one processor being coupled to at least one memory, the at least one processor being configured to execute a computer program or instructions stored in the at least one memory to cause the communication device to execute the method according to any one of claims 1 to 10, or to execute the method according to any one of claims 11 to 22.

26. A communication system, characterized in that, Comprising a terminal device and a network device; Wherein, the terminal device is configured to execute the communication method according to any one of claims 1 to 10; The network device is configured to execute the communication method according to any one of claims 11 to 22.

27. A computer-readable storage medium, characterized in that, Instructions or program code are stored thereon, and when the instructions or program code are executed by a processor, the processor is caused to implement the method according to any one of claims 1 to 10, or the method according to any one of claims 11 to 22.

28. A chip, characterized in that, The chip comprises a processor and a communication interface, the communication interface being configured to send information to and / or receive information from other communication devices outside the communication device including the chip, the processor being configured to execute the method according to any one of claims 1 to 10, or being configured to execute the method according to any one of claims 11 to 22.

Images