Communication method and communication device

Abstract

The present application provides a communication method and a communication device thereof. The communication method includes: a first network node sends a first message to a second network node, the first message including first configuration information. The first network node receives a second message from the second network node, the second message including second configuration information determined based on the first message. The first network node includes at least one of a packet data convergence protocol layer, a service data adaptation protocol layer, and a radio resource control protocol layer, and the second network node includes at least one of a radio link control protocol layer, a medium access control layer, and a physical layer. According to an embodiment of the present application, when some functions of a network device are separated into two network nodes, the first network node and the second network node in the network device can cooperate with each other to determine configuration information related to capacity and coverage.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a communication method and its communication device that can be used for network capacity and coverage optimization.

Background Art

[0002] In a 5G (5th - Generation) communication system, a Central Unit (CU) node and a Distributed Unit (DU) node are introduced into a base station (gNB). In other words, the conventionally integrated Baseband Unit (BBU) is split into two parts: CU and DU.

[0003] Due to the change in the base station architecture for identifying and optimizing some important wireless communication processes, such as Capacity and Coverage Optimization (CCO) problems, in the CU - DU split architecture, the implementation of specific processing processes and functions needs to be redesigned.

Summary of the Invention

Means for Solving the Problems

[0004] Embodiments of this application disclose a communication method and its communication device so that in a 5G radio access network system, when some functions of a conventional base station are separated into two network nodes, the functions of capacity and coverage optimization are implemented.

[0005] A first aspect of an embodiment of the present application discloses a communication method in which a first network node transmits a first message to a second network node, and the first message includes first configuration information. The first network node receives a second message from the second network node, and the second message includes second configuration information determined based on the first message. The first network node includes at least one of a packet data convergence protocol layer, a service data adaptation protocol layer, and a radio resource control protocol layer. The second network node includes at least one of a radio link control protocol layer, a media access control layer, and a physical layer. In this way, the second network node can determine the second configuration information based on the first message from the first network node, whereby the first network node and the second network node cooperate with each other to implement the functions of capacity and coverage optimization.

[0006] In a possible embodiment, the first configuration information includes one or more groups of beam synchronization signal block capacity and coverage optimization (SSB CCO) configuration information determined by the first network node. The second network node selects one group of SSB CCO configuration information from one or more groups of SSB CCO configuration information. In this way, the first network node and the second network node cooperate with each other to implement the functions of capacity and coverage optimization.

[0007] In another possible embodiment, the first configuration information includes one or more groups of cell capacity and coverage optimization (Cell CCO) configuration information determined by the first network node. In this way, the second network node may select one group of Cell CCO configuration information or one group of Cell CCO configuration information and a plurality of SSB CCO configuration information corresponding to the Cell CCO configuration information from one or more groups of Cell CCO configuration information, whereby the first network node and the second network node cooperate with each other to implement the functions of capacity and coverage optimization.

[0008] In another possible embodiment, the first message further includes priority information, and the priority information indicates the priority of one or more groups of SSB CCO configuration information, and / or the priority information indicates the priority of one or more groups of Cell CCO configuration information. In this way, the second network node may refer to the priority information to select one group of Cell CCO configuration information and / or one or more groups of SSB CCO configuration information corresponding to the group of Cell CCO configuration information, or one group of SSB CCO configuration information.

[0009] In another possible embodiment, the first message further includes first indication information, and the first indication information indicates network capacity and coverage problems. Therefore, the second network node may refer to the first indication information to determine one group of Cell CCO configuration information and / or one or more groups of SSB CCO configuration information corresponding to the group of Cell CCO configuration information, or one group of SSB CCO configuration information.

[0010] In another possible embodiment, the first message further includes second indication information, and the second indication information indicates information for identifying network capacity and coverage issues. In this way, the first network node can transmit information for identifying network capacity and coverage issues to the second network node, so that the second network node can better select or determine Cell CCO configuration information or SSB CCO configuration information.

[0011] In another possible embodiment, the second configuration information includes a first group of Cell CCO configuration information and / or a first group of SSB CCO configuration information, and the one or more groups of SSB CCO configuration information determined by the first network node include the first group of SSB CCO configuration information, and the one or more groups of Cell CCO configuration information determined by the first network node include the first group of SSB CCO configuration information.

[0012] Alternatively, the second configuration information is Identification information of a first group of Cell CCO configuration information and / or identification information corresponding to the first group of SSB CCO configuration information, wherein the one or more groups of SSB CCO configuration information determined by the first network node include the first group of Cell CCO configuration information, and the one or more groups of Cell CCO configuration information determined by the first network node include the first group of Cell CCO configuration information. Identification information of the first group of Cell CCO configuration information and / or identification information corresponding to the first group of SSB CCO configuration information. Includes:

[0013] In another possible embodiment, the second configuration information includes a second group of Cell CCO configuration information and / or a second group of SSB CCO configuration information, and the second group of Cell CCO configuration information and / or the second group of Cell CCO configuration information is determined by the second network node.

[0014] Alternatively, the second configuration information is identification information corresponding to a second group of Cell CCO configuration information and / or identification information corresponding to a second group of SSB CCO configuration information, wherein the second group of Cell CCO configuration information and / or the second group of SSB CCO configuration information are determined by a second network node, the identification information corresponding to the second group of Cell CCO configuration information and / or the identification information corresponding to the second group of SSB CCO configuration information is included.

[0015] In another possible embodiment, before the first network node sends a first message to the second network node, the method further includes the first network node identifying network capacity and coverage problems.

[0016] In another possible embodiment, before the first network node identifies a network coverage problem, the method further includes the first network node or the second network node receiving radio resource configuration information sent by a third network node, the radio resource configuration information including at least one of the following: an initial cell coverage state, an initial SSB coverage state, a cell coverage state range, an SSB coverage state range, a mapping relationship between SSB CCO configuration information and a cell coverage state, a mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or a mapping relationship between an SSB radio resource configuration and an SSB cell coverage state.

[0017] In another possible embodiment, the first network node and the second network node belong to the same base station.

[0018] According to the communication method shown in the first aspect of the present application, when some functions of a base station are separated into two network nodes, the functions of capacity and coverage optimization can be implemented by cooperation between the two network nodes.

[0019] A second aspect of the embodiments of the present application provides a network device used in a first network node, the network device including a memory and a processor. The memory is configured to store instructions, and the processor is configured to call the instructions in the memory to perform operations in any one of the first aspect or possible embodiments of the first aspect.

[0020] A third aspect of the embodiments of the present application discloses a communication method including that a second network node receives a first message sent by a first network node, and the first message includes first configuration information. The second network node sends a second message to the first network node, and the second message includes second configuration information determined based on the first message. The first network node includes at least one of a packet data convergence protocol layer, a service data adaptation protocol layer, and a radio resource control protocol layer, and the second network node includes at least one of a radio link control protocol layer, a media access control layer, and a physical layer. In this way, the second network node can determine the second configuration information based on the first message from the first network node, whereby the first network node and the second network node cooperate with each other to implement the functions of capacity and coverage optimization.

[0021] In a possible embodiment, the first configuration information includes one or more groups of beam synchronization signal block capacity and coverage optimization (SSB CCO) configuration information, and one or more groups of SSB CCO configuration information are determined by the first network node. The second network node selects one group of SSB CCO configuration information from one or more groups of SSB CCO configuration information. In this way, the first network node and the second network node cooperate with each other to implement the functions of capacity and coverage optimization.

[0022] In another possible embodiment, the first configuration information further includes one or more groups of Cell CCO configuration information, and the one or more groups of Cell CCO configuration information are determined by the first network node. In this way, the second network node may select one group of Cell CCO configuration information or one group of Cell CCO configuration information and a plurality of SSB CCO configuration information corresponding to the Cell CCO configuration information from the one or more groups of Cell CCO configuration information, whereby the first network node and the second network node cooperate with each other to implement the functions of capacity and coverage optimization.

[0023] In another possible embodiment, the first message includes priority information, the priority information indicates the priority of one or more groups of SSB CCO configuration information, and / or the priority information indicates the priority of one or more groups of Cell CCO configuration information. In this way, the second network node may select one group of Cell CCO configuration information, and / or one or more groups of SSB CCO configuration information corresponding to the group of Cell CCO configuration information, or one group of SSB CCO configuration information with reference to the priority information.

[0024] In another possible embodiment, the first message further includes first indication information, and the first indication information indicates network capacity and coverage problems. Therefore, the second network node may determine one group of Cell CCO configuration information, and / or one or more groups of SSB CCO configuration information corresponding to the group of Cell CCO configuration information, or one group of SSB CCO configuration information with reference to the first indication information.

[0025] In another possible embodiment, the first message further includes second indication information, and the second indication information indicates information for identifying network capacity and coverage issues. In this way, the second network node can better select or determine Cell CCO configuration information or SSB CCO configuration information based on the information about network capacity and coverage issues.

[0026] In another possible embodiment, the second configuration information includes a first group of Cell CCO configuration information and / or a first group of SSB CCO configuration information, and the one or more groups of SSB CCO configuration information determined by the first network node include the first group of SSB CCO configuration information, and the one or more groups of Cell CCO configuration information determined by the first network node include the first group of Cell CCO configuration information.

[0027] Alternatively, the second configuration information is Identification information of a first group of Cell CCO configuration information and / or identification information corresponding to the first group of SSB CCO configuration information, wherein the one or more groups of SSB CCO configuration information determined by the first network node include the first group of Cell CCO configuration information, and the one or more groups of Cell CCO configuration information determined by the first network node include the first group of Cell CCO configuration information. Identification information of the first group of Cell CCO configuration information and / or identification information corresponding to the first group of SSB CCO configuration information. Includes:

[0028] In another possible embodiment, the second configuration information includes a second group of Cell CCO configuration information and / or a second group of SSB CCO configuration information, and the second group of Cell CCO configuration information and / or the second group of SSB CCO configuration information is determined by the second network node.

[0029] Alternatively, the second configuration information is Identification information corresponding to a second group of Cell CCO configuration information and / or identification information corresponding to a second group of SSB CCO configuration information, wherein the second group of Cell CCO configuration information and / or the second group of SSB CCO configuration information is determined by a second network node, the identification information corresponding to the second group of Cell CCO configuration information and / or the identification information corresponding to the second group of SSB CCO configuration information is included.

[0030] In another possible embodiment, before the first network node transmits the first message to the second network node, the method further includes the first network node identifying network capacity and coverage problems.

[0031] In another possible embodiment, before the first network node identifies a network coverage problem, the method further includes the first network node or the second network node receiving radio resource configuration information transmitted by a third network node, the radio resource configuration information including at least one of the following: an initial cell coverage state, an initial SSB coverage state, a cell coverage state range, an SSB coverage state range, a mapping relationship between SSB CCO configuration information and a cell coverage state, a mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or a mapping relationship between an SSB radio resource configuration and an SSB cell coverage state.

[0032] In another possible embodiment, the first network node and the second network node belong to the same base station.

[0033] According to the communication method in this embodiment of the present application, the functions of capacity and coverage optimization can be implemented by cooperation between two network nodes.

[0034] A fourth aspect of an embodiment of the present application provides a network device for use in a second network node, the network device including a memory and a processor, the memory configured to store instructions, and the processor configured to invoke the instructions in the memory to perform operations of the method of the third aspect or any one of possible implementations of the third aspect.

[0035] A fifth aspect of an embodiment of the present application discloses a communication method including: a first network node sending a first message to a second network node, the first message including first indication information, the first indication information indicating information related to network capacity and coverage issues; the first network node receiving a second message from the second network node, the second message including configuration information determined based on the first message and used for network capacity and coverage optimization; the first network node including at least one of a Packet Data Convergence Protocol layer, a Service Data Adaptation Protocol layer, and a Radio Resource Control Protocol layer, and the second network node including at least one of a Radio Link Control Protocol layer, a Medium Access Control layer, and a Physical layer.

[0036] In a possible implementation, the first message further includes second indication information, the second indication information indicating information for identifying network capacity and coverage issues.

[0037] In another possible embodiment, the second message includes Cell CCO configuration information and / or SSB CCO configuration information, where the Cell CCO configuration information and the SSB CCO configuration information are determined by the second network node.

[0038] In another possible implementation, before the first network node sends the first message to the second network node, the communication method further includes the first network node identifying network capacity and coverage issues.

[0039] In another possible embodiment, before the first network node identifies network capacity and coverage problems, the communication method further includes that the first network node or the second network node receives wireless resource configuration information sent by a third network node, and the wireless resource configuration information includes at least one of the following: an initial cell coverage state, an initial SSB coverage state, a cell coverage state range, an SSB coverage state range, a mapping relationship between SSB CCO configuration information and the cell coverage state, a mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or a mapping relationship between an SSB wireless resource configuration and an SSB cell coverage state.

[0040] In another possible embodiment, the first network node and the second network node belong to the same base station.

[0041] According to the communication method in this embodiment of the present application, the functions of capacity and coverage optimization can be implemented by cooperation between two network nodes.

[0042] A sixth aspect of the embodiment of the present application provides a network device used in a first network node, and the network device includes a memory and a processor. The memory is configured to store instructions, and the processor is configured to call the instructions in the memory to perform operations in any one of the methods of the fifth aspect or a possible embodiment of the fifth aspect.

[0043] A seventh aspect of an embodiment of the present application discloses a communication method, including: a second network node receiving a first message sent by a first network node, the first message including first indication information, the first indication information indicating information related to network capacity and coverage issues; the second network node sending a second message to the second network node, the second message including configuration information determined based on the first message and used for network capacity and coverage optimization; the first network node including at least one of a Packet Data Convergence Protocol layer, a Service Data Adaptation Protocol layer, and a Radio Resource Control Protocol layer, and the second network node including at least one of a Radio Link Control Protocol layer, a Medium Access Control layer, and a Physical layer.

[0044] In a possible implementation, the first message further includes second indication information, the second indication information indicating information for identifying network capacity and coverage issues.

[0045] In yet another possible embodiment, the second message includes Cell CCO configuration information and / or SSB CCO configuration information, where the Cell CCO configuration information and the SSB CCO configuration information are determined by the second network node.

[0046] In another possible implementation, before the first network node sends the first message to the second network node, the communication method further includes the first network node identifying network capacity and coverage issues.

[0047] In another possible implementation, before the first network node identifies the network capacity and coverage problem, the communication method further includes the first network node or the second network node receiving radio resource configuration information sent by a third network node, the radio resource configuration information including at least one of the following: an initial cell coverage state, an initial SSB coverage state, a cell coverage state range, an SSB coverage state range, a mapping relationship between the SSB CCO configuration information and the cell coverage state, a mapping relationship between the SSB CCO configuration information and the Cell CCO configuration information, or a mapping relationship between the SSB radio resource configuration and the SSB cell coverage state.

[0048] In another possible implementation, the first network node and the second network node belong to the same base station.

[0049] According to the communication method in this embodiment of the present application, the function of capacity and coverage optimization can be implemented by cooperation between two network nodes.

[0050] An eighth aspect of an embodiment of the present application provides a network device for use in a second network node, the network device including a memory and a processor, the memory configured to store instructions, and the processor configured to invoke the instructions in the memory to perform operations of the seventh aspect or any one of the methods of possible implementation of the seventh aspect.

[0051] A ninth aspect of an embodiment of the present application provides a communications device for use in a first network node, the communications device including a module configured to perform a method as described in the first aspect or a possible implementation of the first aspect.

[0052] A tenth aspect of an embodiment of the present application provides a communication device for use in a second network node, the communication device including a module configured to perform a method as described in the third aspect or a possible implementation of the third aspect.

[0053] An eleventh aspect of an embodiment of the present application provides a communication device, the communication device being for use in a first network node and including a module configured to perform a method as described in the fifth aspect or a possible implementation of the fifth aspect.

[0054] A twelfth aspect of an embodiment of the present application provides a communication device, the communication device being for use in a second network node and including a module configured to perform a method as described in the seventh aspect or a possible implementation of the seventh aspect.

[0055] A thirteenth aspect of an embodiment of the present application provides a communication device for use in a first network node, the communication device including a processor and an interface circuit. The interface circuit is configured to receive a signal from a device other than the communication device and transmit the signal to the processor, or to transmit a signal from the processor to a device other than the communication device. The processor is configured to implement a method described in the first aspect or possible implementations of the first aspect by using logic circuits or executing code instructions.

[0056] A fourteenth aspect of the present application provides a communication device for use in a second network node, the communication device including a processor and an interface circuit. The interface circuit is configured to receive a signal from a device other than the device and transmit the signal to the processor, or to transmit a signal from the processor to a device other than the device. The processor is configured to implement the method described in the third aspect or possible implementations of the third aspect by using logic circuits or executing code instructions.

[0057] A fifteenth aspect of an embodiment of the present application provides a communication device. The communication device is used in a first network node and includes a processor and an interface circuit. The interface circuit is configured to receive a signal from a device other than this device and transmit the signal to the processor, or to transmit a signal from the processor to a device other than this device. The processor is configured to implement the method described in the fifth aspect or a possible implementation of the fifth aspect by using logic circuits or by executing code instructions.

[0058] A sixteenth aspect of an embodiment of the present application provides a communication device. The communication device is used in a second network node and includes a processor and an interface circuit. The interface circuit is configured to receive a signal from a device other than this device and transmit the signal to the processor, or to transmit a signal from the processor to a device other than this device. The processor is configured to implement the method described in the seventh aspect or a possible implementation of the seventh aspect by using logic circuits or by executing code instructions.

[0059] A seventeenth aspect of an embodiment of the present application provides a computer-readable storage medium. The computer-readable storage medium stores a computer program or instructions. When the computer program or instructions are executed by a communication device, the method according to the first aspect or a possible implementation of the first aspect, or the method according to the third aspect or a possible implementation of the third aspect, or the method according to the fifth aspect or a possible implementation of the fifth aspect, or the method according to the seventh aspect or a possible implementation of the seventh aspect is implemented.

[0060] An eighteenth aspect of an embodiment of the present application provides a computer program product. When the computer program product is executed by a communication device, the method according to the first aspect or a possible implementation of the first aspect, or the method according to the third aspect or a possible implementation of the third aspect, or the method according to the fifth aspect or a possible implementation of the fifth aspect, or the method according to the seventh aspect or a possible implementation of the seventh aspect is implemented.

[0061] A nineteenth aspect of an embodiment of the present application provides a communication system, the communication system including one or more of the following: a communication device according to any one of the ninth aspect to the sixteenth aspect. Alternatively, the communication system includes a first network node and a second network node according to the first aspect to the eighth aspect. [Brief explanation of the drawings]

[0062]

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[0063] The following describes embodiments of the present application with reference to the accompanying drawings of the embodiments of the present application.

[0064] The following explains some terms in the embodiments of the present application to facilitate understanding by those skilled in the art.

[0065] (1) A terminal device is a device having a wireless transceiver function. The terminal device may be deployed on land and may include an indoor device, an outdoor device, a handheld device, or an in-vehicle device. The terminal may also be deployed on the water surface (e.g., on a ship), or in the air (e.g., on an airplane, a balloon, or a satellite). The terminal device may be a mobile phone, a tablet computer (pad), a computer having a wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device for industrial control, a wireless terminal device for self-driving, a wireless terminal device for remote medical, a wireless terminal device for smart grid, a wireless terminal device for transportation safety, a wireless terminal device for smart city, or a wireless terminal device for smart home. The terminal device may further include a user equipment (UE), etc.

[0066] (2) A network device in this application may be a device in a wireless network, for example, a node that connects a terminal device to a radio access network (RAN) in a wireless network. Currently, some examples of RAN nodes include a next generation NodeB (gNB), a transmission reception point (TRP), an evolved NodeB (eNB), a baseband unit (BBU), a wireless fidelity (WiFi) access point (AP), or an integrated access and backhaul (IAB) in a 5th generation (5G) NR system (also simply referred to as an NR system).

[0067] In the embodiments of the present application, the apparatus configured to perform the functions of a network device may be a network device, or may be an apparatus capable of supporting a network device in performing all or part of the required functions of the network device, for example, may be a chip system, may be board hardware, or may be an entity including software and hardware. This apparatus may be incorporated into a network device. In the technical solutions provided in the embodiments of the present application, the technical solutions provided in the embodiments of the present application will be described using an example in which the apparatus configured to perform the functions of a network device is a network device.

[0068] It should be understood that the sequence numbers of the above processes do not refer to the execution order in the embodiments of the present application. The execution order of the processes should be determined based on the functions and internal logic of the processes, and should not be construed as any limitation on the implementation process of the embodiments of the present application.

[0069] It should be understood that the terms "system" and "network" in this application are usually used interchangeably in this specification. The term "and / or" in the embodiments of this application describes an association relationship for describing associated objects, and it should be understood that three relationships may exist. For example, A and / or B may represent the following three cases: only A exists, both A and B exist, and only B exists. The symbol " / " in the embodiments of this application generally should be understood to indicate an "or" relationship between associated objects.

[0070] In the embodiments of this application, it should be understood that "A indicates B" may mean that A directly includes B, or A indicates B using a mapping relationship.

[0071] In the embodiments of this application, it should be understood that "at least one" means one or more, and "a plurality of" means two or more. At least one of the following (elements) or similar expressions refers to any combination of these, including any combination of singular (elements) or plural (elements). For example, at least one of a, b, or c may represent a, b, c, a - b, a - c, b - c, or a - b - c, and a, b, and c may be singular or plural.

[0072] In the embodiments of this application, it should be understood that terms are generally numbered for ease of distinction, and the numbers do not mean that there is a difference in the order or priority of the terms. For example, in "the first information group" and "the second information group", "the first" and "the second" are usually used only to distinguish two information groups and do not constitute a limitation on the implementation process of the embodiments of this application.

[0073] As shown in FIG. 1, in the network structure in one embodiment of the present application, an example where the network device is a gNB in the NR system is used. The network device may include a central unit (CU) 101 and a distributed unit (DU) 102. For example, the network device may include a Radio Resource Control (RRC) protocol layer and its functions, a Packet Data Convergence Protocol (PDCP) protocol layer and its functions, a Service Data Adaptation Protocol (SDAP) protocol layer and its functions, a Radio Link Control (RLC) protocol layer and its functions, a Media Access Control (MAC) protocol layer and its functions, and a physical layer PHY and its functions. The CU may include all or part of the protocol layer functions of the network device. For example, the CU has an RRC protocol layer and its functions, a PDCP protocol layer and its functions, and an SDAP protocol layer and its functions. In some other embodiments, the CU may further include an RRC protocol layer, a PDCP protocol layer, and an RLC protocol layer. Alternatively, the CU may include an RRC protocol layer, a PDCP protocol layer, and a MAC protocol layer, or may include some or all of the physical layer PHY functions. Similarly, the DU may also be implemented to have all or part of the protocol layer functions of the network device. For example, the DU may include an RLC protocol layer and its functions, a MAC protocol layer and its functions, and a PHY protocol layer and its functions. The protocol layers and the functions of the protocol layers specifically included in the CU and the DU are not limited in this embodiment of the present application.

[0074] Based on FIG. 1, as shown in FIG. 2, the CU can be further divided into a CU control plane (CU-CP) entity and a CU user plane (CU-UP) entity. The CU-CP entity is responsible for control plane functions including the RRC protocol layer and its functions, as well as the Packet Data Convergence Protocol-Control Plane (PDCP-C) protocol layer and its functions. For example, the RRC protocol layer is mainly responsible for system message broadcast, RRC connection management, access layer security management, radio resource management, and mobility management. PDCP-C is mainly responsible for operations such as encryption and decryption of control plane data, integrity protection, and data transmission. The CU-UP is responsible for user plane functions including the SDAP protocol layer and its functions, as well as the Packet Data Convergence Protocol-User Plane (PDCP-U) protocol layer and its functions. For example, SDAP is mainly responsible for operations such as processing core network data and mapping flows to bearers. PDCP-U is mainly responsible for data plane encryption and decryption, integrity protection, header compression, serial number maintenance, and data transmission. As shown in FIG. 2, the CU-CP and CU-UP can communicate with each other via the E1 interface. The CU-CP and DU communicate with each other via the F1 control plane interface (F1-C). The CU-UP and DU communicate with each other via the F1 user plane interface (F1-U).

[0075] In the CU-DU architecture, the wireless resource configuration parameters of a cell are generally adjusted by the DU, while the coverage problem or load problem of the cell is generally detected by the CU. The DU makes decisions regarding the configuration parameters of the wireless resources. This is because the DU has a better understanding of the configuration state of the wireless resource parameters of the cell, such as transmission power, antenna angle, SSB direction, and cell resource usage status. The CU has an overall awareness of all cells managed by the CU and the corresponding adjacent cells, and can better perform the adjustment between adjacent cells. The CU either does not know the configuration state of the wireless resource parameters of the cell or only knows some of the information. For example, the DU adjusts the transmission power within the coverage parameters and sends the transmission power information to the CU. The CU cannot understand the relationship between the transmission power and the coverage. The CU further sends the parameters to the adjacent cells, and the CUs and DUs of the adjacent cells also cannot understand the parameters. As a result, the cell cannot determine each coverage configuration that needs to be adjusted. To solve the above problems, the embodiments of this application provide the following solutions.

[0076] FIG. 3 is a schematic diagram of an application scenario of a technical solution according to an embodiment of this application. In the application scenario, the radio access network system includes two network devices: a first network node and a second network node. It can be understood that the first network node in this embodiment of this application may be the CU in FIG. 1 or FIG. 2, and the second network node may be the DU in FIG. 1 or FIG. 2. The following uses an example of the operations performed by the first network node and the second network node to describe this embodiment of this application. It can be understood that the first network node in this embodiment of this application may alternatively be the CU-CP, and the second network node may be the DU or the CU-UP.

[0077] Based on the application scenario shown in Figure 3, Figure 4 is a schematic flowchart of a communication method 400 according to an embodiment of the present application. The method 400 includes, but is not limited to, the following steps:

[0078] S410: A first network node sends a first message to a second network node, where the first message includes first configuration information.

[0079] As described below in this embodiment, the first message may include at least one of the following information: one or more groups of Cell CCO configuration information and / or one or more groups of SSB CCO configuration information for one or more cells, priority information, gain information, first indication information, second indication information, or third indication information.

[0080] For example, the first configuration information may include one or more groups of SSB CCO configuration information determined by the first network node, or the first configuration information is one or more groups of SSB CCO configuration information for one or more cells determined by the first network node.

[0081] Optionally, the first configuration information may further include one or more groups of Cell CCO configuration information for the one or more cells, wherein the one or more groups of Cell CCO configuration information for the one or more cells are determined by the first network node and sent by the first network node to the second network node.

[0082] For example, the first message may further include priority information, and the priority information indicates the priority of one or more groups of Cell CCO configuration information of one or more cells and / or one or more groups of SSB CCO configuration information determined by the first network node. The second network node may select one group of Cell CCO configuration information and / or one or more groups of SSB CCO configuration information from one or more groups of Cell CCO configuration information of one or more cells and / or one or more groups of SSB CCO configuration information based on the priority information.

[0083] Optionally, the first message may further include gain information, and the gain information indicates the possible gain effect of one or more groups of Cell CCO and / or SSB CCO configuration information of one or more cells determined by the first network node. The second network node may select one group of optimal Cell CCO and / or SSB CCO configuration information from one or more groups of Cell CCO and / or SSB CCO configuration information of one or more cells based on the gain information.

[0084] Optionally, the first message may further include first indication information, and the first indication information indicates network capacity and coverage optimization (CCO) problems. For example, the first indication information transmitted by the first network node to the second network node may include problem type information and / or problem description information related to CCO. The problem type information may include at least one of the following problem types: weak coverage, coverage hole, overshoot coverage, overshoot coverage, interference problem, unbalanced uplink and downlink coverage, or another problem type. The problem description information describes a detailed CCO problem. The problem description information may include at least one of information such as direction information of the coverage problem, geographical location information, distance information, occurrence time, problem severity level, and problem cell and / or SSB information. Information such as direction information, geographical location information, and distance information of the coverage problem may enable the second network node to determine SSB information indicating that the coverage problem has occurred. The occurrence time of the coverage problem may enable the second network node to determine the time period during which coverage optimization needs to be performed. The severity level of the coverage problem may enable the second network node to determine the range of radio resource parameters to be adjusted. The problem cell and / or SSB information may indicate information about the cell and / or SSB having the CCO problem, for example, cell identifier information and SSB identifier information, whereby the second network node can determine the cell and / or SSB having the CCO problem. Optionally, the problem cell and / or SSB information may further indicate a CCO problem occurrence scenario. For example, the problem cell may include cell 1 and cell 2, and the occurrence scenario may be "from cell 1 to cell 2", "from cell 2 to cell 1", or "bidirectional movement".

[0085] Optionally, the first message may further include second indication information, where the second indication information indicates information for identifying network capacity and coverage problems. For example, the second indication information includes at least one of report information such as coverage measurement information, a measurement report, a mobility-related report (e.g., a radio link failure report, a handover success report, or another report), a connection failure report, and a random access report.

[0086] Optionally, the first message may further include third indication information, which may be Cell CCO configuration information and / or SSB CCO configuration information of the neighboring cell, and the second network node may better determine the Cell CCO configuration information and / or SSB CCO configuration information of the cell managed by the second network node based on the third indication information.

[0087] It should be understood that the Cell CCO configuration information, the SSB CCO configuration information, the priority information, the gain information, the first indication information, the second indication information, and the third indication information may be carried in the same message for transmitting the first message, for example, or may be included in different messages transmitted by the first network node to the second network node, which is not limited in this embodiment of the present application.

[0088] For example, the Cell CCO configuration information includes at least one of the following information elements shown in Table 1: [Table 1]

[0089] For example, the SSB CCO configuration information includes at least one of the information elements shown in Table 2. [Table 2]

[0090] When the first network node transmits one or more groups of SSB CCO configuration information to the second network node, cell information corresponding to one or more groups of SSB CCO configuration information may be further indicated. The cell information may include at least one of a cell global identifier (CGI), a physical cell identifier (PCI) and a frequency, a cell identifier (cell ID), a non-public network identifier (NPN ID), a non-terrestrial network identifier (NTN ID), or another cell identifier of the cell. The CGI may include a public land mobile network (PLMN ID) and a cell ID. Optionally, the cell information may be cell information corresponding to the cell accessed by the terminal device, or information about a first cell within information about at least one cell transmitted by the cell accessed by the terminal device.

[0091] It can be understood that when the first network node can transmit multiple groups of Cell CCO configuration information of one or more cells and / or multiple groups of SSB CCO configuration information to the second network node, the first network node may also indicate to the second network node the first index information of the Cell CCO configuration information, and / or the second index information of the SSB CCO configuration information, or the third index information of at least one group of Cell CCO configuration information of at least one cell and / or at least one group of SSB CCO configuration information.

[0092] In one example, the first message transmitted by the first network node to the second network node may include at least one of the following information shown in Table 3.

Table 3

[0093] It can be understood that at least one of the information shown in Table 3 may also be transmitted to the second network node using another message instead of the first message.

[0094] In one embodiment, one group of Cell CCO configuration information may correspond to at least one group of SSB CCO configuration information. Correspondingly, the first network node may indicate the joint index information of the Cell CCO configuration information and the SSB CCO configuration information (hereinafter referred to as the fourth index information for ease of reference) using the first message or alone.

[0095] S420: The second network node transmits a second message to the first network node, and the second message includes second configuration information determined by the second network node based on the first message.

[0096] For example, the second configuration information includes a first group of Cell CCO configuration information and / or a first group of SSB CCO configuration information determined by the second network node. The one or more groups of SSB CCO configuration information determined by the first network node in step S410 include the first group of SSB CCO configuration information. The one or more groups of Cell CCO configuration information determined by the first network node include the first group of Cell CCO configuration information. Alternatively, the second configuration information includes identification information of the first group of Cell CCO configuration information and / or identification information corresponding to the first group of SSB CCO configuration information, and the one or more groups of SSB CCO configuration information determined by the first network node include the first group of Cell CCO configuration information, and the one or more groups of Cell CCO configuration information determined by the first network node include the first group of Cell CCO configuration information.

[0097] Optionally, the second configuration information may include index information corresponding to the CCO configuration information received by the second network node. The CCO configuration information may be at least one group of Cell CCO configuration information of at least one cell and / or at least one group of SSB CCO configuration information. The index information may be at least one of the first index information, second index information, third index information, or fourth index information in step S410. The CCO configuration information corresponding to the index information is provided by the first network node, transmitted by the first network node to the second network node, and selected and determined by the second network node.

[0098] Optionally, if the first network node does not send explicit index information to the second network node, the second network node may determine the index information corresponding to the received CCO configuration information based on the order of the received CCO configuration information within at least one group of the CCO configuration information. For example, the first network node sends three groups of Cell CCO configuration information. If the second network node determines that the last group of Cell CCO configuration information is the second configuration information, the second network node may indicate to the first network node that the index information is 3 (for example, the default index information for Cell CCO configuration information is 1, 2, 3) or 2 (for example, the default index information for Cell CCO configuration information is 0, 1, 2), or the corresponding index information by another index calculation method pre-defined in the protocol. The CCO configuration information includes at least one group of Cell CCO configuration information and / or at least one group of SSB CCO configuration information.

[0099] Optionally, the second configuration information may further include the second group of Cell CCO configuration information and / or the second group of SSB CCO configuration information. The second group of Cell CCO configuration information and / or the second group of SSB CCO configuration information is determined by the second network node. Alternatively, the second configuration information includes the identification information corresponding to the second group of Cell CCO configuration information and / or the identification information corresponding to the second group of SSB CCO configuration information. The second group of Cell CCO configuration information and / or the second group of SSB CCO configuration information is determined by the second network node.

[0100] For example, when the second network node receives at least one group of Cell CCO configuration information of cell 1 and / or at least one group of SSB CCO configuration information transmitted by the first network node, the second network node may reject all Cell CCO configurations and SSB CCO configurations transmitted by the first network node. The second network node determines one group of Cell CCO configuration information of cell 1 and / or one group of SSB CCO configuration information, and uses the group of Cell CCO configuration information and / or the group of SSB CCO configuration information as the second configuration information. Alternatively, the second network node receives at least one group of Cell CCO configuration information transmitted by the first network node. The second network node determines one group of Cell CCO configurations based on at least one group of Cell CCO configuration information, and may determine at least one group of SSB CCO configuration information corresponding to the group of Cell CCO configuration information. The second network node uses the group of Cell CCO configuration information and / or the determined group of SSB CCO configuration information as the second configuration information. For example, the second network node receives Cell CCO configuration information 1-1 and Cell CCO configuration information 1-2 of cell 1 and Cell CCO configuration information 2-1 and Cell CCO configuration information 2-2 of cell 2 transmitted by the first network node. The second configuration information transmitted by the second network node may include the received Cell CCO configuration information 1-1 of cell 1 and the determined Cell CCO configuration information of cell 2. In a possible example, the details are as follows.

[0101] The first configuration information transmitted by the first network node to the second network node may be shown in Table 4.

Table 4

[0102] The second configuration information sent by the second network node to the first network node may be shown in Table 5. [Table 5]

[0103] Optionally, before step S420, the first network node may receive fourth indication information sent by the second network node, where the fourth indication information indicates information about cell coverage state ranges and / or information about SSB coverage state ranges that can be supported by the second network node.

[0104] In one embodiment, step S420 alternatively includes the second network node sending a rejection or failure message to the first network node. Optionally, the rejection or failure message may carry a reason for the rejection or failure. The specific reason may be insufficient resources or the CCO configuration information in the first message cannot be supported.

[0105] According to the method in this embodiment of the present application, in a 5G radio access network system, when some functions of a base station are separated into two network nodes, such as a CU and a DU, process coordination is performed between the CU and the DU to implement the function of capacity and coverage optimization.

[0106] It can be understood that in the communication method in this embodiment of the present application, the first configuration information can include one or more groups of Cell CCO configuration information and / or one or more groups of SSB CCO configuration information of one or more cells. In this embodiment of the present application, an example in which the first configuration information includes some of the above-mentioned configuration information is used for explanation, and can be extended to a scenario in which the first configuration information includes one or more groups of Cell CCO configuration information and / or one or more groups of SSB CCO configuration information of one or more cells.

[0107] Please refer to the technical solutions shown in FIGS. 3 and 4. FIG. 5 is a schematic flowchart of a communication method 500 according to an embodiment of the present application. The communication method shown in FIG. 5 relates to a first network node, a second network node, and a third network node. The first network node may be a CU or a CU-CP described in the embodiment corresponding to FIG. 1 or FIG. 2 of the present application. The second network node may be a DU or a CU-UP described in the embodiment corresponding to FIG. 1 or FIG. 2 of the present application. The third network node may be an operation, administration, and maintenance (OAM) entity. The method 500 includes, but is not limited to, the following steps.

[0108] S510: The first network node identifies a CCO problem.

[0109] The first network node may identify a CCO problem based on a message from a terminal device or another network device. The message may be at least one of report information such as coverage measurement information, a measurement report, a mobility-related report (e.g., a radio link failure report, a handover success report, or another report), a connection failure report, and a random access report. The another network device may be an OAM or a base station of another cell.

[0110] It should be understood that the first network node may identify not only CCO problems but also problems such as load problems. The present application is not limited thereto.

[0111] It should be understood that the message may be any message that helps the first network node identify a CCO problem, for example, a performance measurement report, or beam and multi-antenna related information. The present application is not limited thereto.

[0112] Optionally, before the first network node identifies the CCO problem at S510, the method 500 may further include the following steps.

[0113] Optional step S501: A first network node receives a third message sent by a third network node, where the third message indicates radio resource configuration information.

[0114] For example, the third message may include at least one of the following: an initial cell coverage state, an initial SSB coverage state, a coverage state range, an SSB coverage state range, a mapping relationship between SSB CCO configuration information and cell coverage states, a mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or a mapping relationship between SSB radio resource configurations and SSB cell coverage states. The first network node may determine the Cell CCO configuration and / or the SSB CCO configuration information based on the third message.

[0115] Optional step S502: The second network node receives a fourth message sent by a third network node. The third network node may be an operation and management entity (OAM). The fourth message indicates radio resource configuration information.

[0116] For example, the fourth message may include at least one of the following: an initial cell coverage state, an initial SSB coverage state, a coverage state range, an SSB coverage state range, a mapping relationship between SSB CCO configuration information and cell coverage states, a mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or a mapping relationship between SSB radio resource configurations and SSB cell coverage states. The second network node may determine the Cell CCO configuration information and / or the SSB CCO configuration information based on the fourth message.

[0117] Optionally, the second network node is managed by the first network node, and the first network node and the second network node belong to the same base station.

[0118] S520: The first network node transmits a first message to the second network node, and the first message includes first configuration information. The first configuration information may include one or more groups of SSB CCO configuration information determined by the first network node.

[0119] Optionally, the first configuration information further includes one or more groups of Cell CCO configuration information determined by the first network node.

[0120] Optionally, the correspondence between the Cell CCO configuration information and the SSB CCO configuration information may be a one-to-one correspondence, a one-to-many correspondence, a many-to-one correspondence, or a many-to-many correspondence. This is not limited in this embodiment of the present application.

[0121] Optionally, the first message may further include at least one of priority information, gain information, first instruction information, second instruction information, and third instruction information. For a specific description of the relevant information, refer to the description of step S410 in the embodiment of the present application.

[0122] It should be understood that the Cell CCO configuration information, the SSB CCO configuration information, the priority information, the gain information, the first instruction information, and the second instruction information may be included in the same message, for example, the first message, or may be included in different messages transmitted by the first network node to the second network node. The present application is not limited thereto.

[0123] It may be understood that when a first network node transmits multiple groups of Cell CCO configuration information and / or multiple groups of SSB CCO configuration information to a second network node, the first network node may indicate first index information and / or second index information and / or third index information to the second network node.

[0124] Optionally, before step S520, the first network node may receive fourth indication information sent by the second network node, where the fourth indication information indicates information about cell coverage state ranges and / or information about SSB coverage state ranges that can be supported by the second network node.

[0125] S530: The second network node determines second configuration information based on the first message sent by the first network node.

[0126] For example, the second configuration information includes a first group of Cell CCO configuration information and / or a first group of SSB CCO configuration information. The one or more groups of beam SSB CCO configuration information determined by the first network node in step S520 include a first group of SSB CCO configuration information. The one or more groups of Cell CCO configuration information determined by the first network node include a first group of SSB CCO configuration information.

[0127] Optionally, the second configuration information includes index information corresponding to the first group of Cell CCO configuration information and / or index information corresponding to the first group of SSB CCO configuration information. The one or more groups of SSB CCO configuration information determined by the first network node in step S520 include the first group of SSB CCO configuration information. The one or more groups of Cell CCO configuration information determined by the first network node include the first group of SSB CCO configuration information.

[0128] Optionally, if the first network node does not send explicit index information to the second network node, the second network node may determine the index information corresponding to the second network node based on the order of the received Cell CCO configuration information within at least one group of the Cell CCO configuration information, and / or the second network node may determine the index information corresponding to the second network node based on the order of the received SSB CCO configuration information within at least one group of the SSB CCO configuration information. For example, the first network node sends three groups of Cell CCO configuration information. If the second network node determines that the last group of the Cell CCO configuration information is the second configuration information, the second network node may indicate to the first network node that the index information is 3. Alternatively, the second network node may determine the corresponding index information based on another index calculation method predefined in the protocol.

[0129] Optionally, the second configuration information may further include the second group of the Cell CCO configuration information and / or the second group of the SSB CCO configuration information. The second group of the Cell CCO configuration information and / or the second group of the SSB CCO configuration information is determined by the second network node. Alternatively, the second configuration information includes the identification information corresponding to the second group of the Cell CCO configuration information and / or the identification information corresponding to the second group of the SSB CCO configuration information. The second group of the Cell CCO configuration information and / or the second group of the SSB CCO configuration information is determined by the second network node.

[0130] For example, when a second network node receives one or more groups of SSB CCO configuration information transmitted by a first network node, the second network node may reject all the SSB CCO configurations transmitted by the first network node. The second network node determines one group of SSB CCO configuration information based on the first message and uses the group of SSB CCO configuration information as second configuration information. The second configuration information is included in a second message and is transmitted by the second network node to the first network node. For example, the second network node further identifies a CCO problem based on the reported information and / or the first indication information transmitted by the first network node in order to make a decision different from the SSB CCO configuration and / or the Cell CCO configuration transmitted by the first network node.

[0131] S540: The first network node receives a second message transmitted by the second network node. The second message includes second configuration information.

[0132] Optionally, after the first network node receives the second message transmitted by the second network node, the first network node transmits the Cell CCO configuration information and / or the SSB CCO configuration information in the second message to the network nodes of adjacent cells, whereby the cell determines the configuration that needs to be adjusted by the cell.

[0133] According to the method in this embodiment of the present application, in a 5G radio access network system, when some functions of a base station are separated into two network nodes, for example, a CU and a DU, in order to implement the function of capacity and coverage optimization, a process adjustment is executed between the CU and the DU.

[0134] Please refer to the technical solutions shown in Figures 3 and 4. Figure 6 is a schematic flowchart of a communication method 600 according to an embodiment of the present application. The communication method shown in Figure 6 relates to a first network node, a second network node, and a third network node. The first network node may be a CU or a CU-CP described in the embodiment corresponding to Figure 1 or Figure 2 of the present application. The second network node may be a DU or a CU-UP described in the embodiment corresponding to Figure 1 or Figure 2 of the present application. The third network node may be an OAM entity. The method 600 includes, but is not limited to, the following steps:

[0135] S610: A first network node identifies a CCO problem.

[0136] The first network node may identify the CCO problem based on a message from the terminal device or another network device, the message being at least one of coverage measurement information, a measurement report, a mobility-related report (e.g., a radio link failure report, a handover success report, or another report), a connection failure report, and other report information such as a random access report.

[0137] It should be understood that the first network node may identify not only a CCO problem but also other problems, such as a load problem, etc. The application is not limited in this respect.

[0138] It should be understood that the message may be any message that helps the first network node identify a CCO problem, and may further include, for example, a performance measurement report, or beam and multi-antenna related information.

[0139] Optionally, before the first network node identifies the CCO problem at S610, the method 600 further includes the following steps.

[0140] Optional step S601: The first network node receives a third message sent by the third network node. The third message indicates radio resource configuration information. The first network node includes at least one of a packet data convergence protocol layer, a service data adaptation protocol layer, and a radio resource control protocol layer.

[0141] For example, the third message may include at least one of the following: an initial cell coverage state, an initial SSB coverage state, a coverage state range, an SSB coverage state range, a mapping relationship between SSB CCO configuration information and a cell coverage state, a mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or a mapping relationship between an SSB radio resource configuration and an SSB cell coverage state. The first network node may determine Cell CCO configuration and / or SSB CCO configuration information based on the third message.

[0142] Optional step S602: The second network node receives a fourth message sent by the third network node. The third network node may be an operation and management entity (OAM). The fourth message indicates radio resource configuration information. The second network node and the third network node include at least one of a radio link control protocol layer, a media access control layer, and a physical layer.

[0143] For example, the fourth message may include at least one of the following: an initial cell coverage state, an initial SSB coverage state, a coverage state range, an SSB coverage state range, a mapping relationship between SSB CCO configuration information and a cell coverage state, a mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or a mapping relationship between an SSB radio resource configuration and an SSB cell coverage state. The second network node may determine Cell CCO configuration information and / or SSB CCO configuration information based on the fourth message.

[0144] Optionally, the second network node is managed by the first network node, and the first network node and the second network node belong to the same base station.

[0145] S620: The first network node sends a first message to the second network node, the first message including first configuration information, the first configuration information being Cell CCO configuration information determined by the first network node.

[0146] Optionally, the first message may further include at least one of first instruction information, second instruction information, and third instruction information. For a specific description of the related information, please refer to the description of step S410 in the embodiment of the present application.

[0147] It should be understood that the Cell CCO configuration information, the first instruction information, the second instruction information, and the third instruction information may be included in the same message, e.g., the first message, or may be included in different messages sent by the first network node to the second network node, although the present application is not limited thereto.

[0148] Optionally, before step S620, the second network node may send third indication information to the first network node, where the third indication information indicates information regarding a cell coverage status range that can be supported by the second network node.

[0149] S630: The second network node determines second configuration information based on the first message sent by the first network node.

[0150] For example, after receiving a first message transmitted by a first network node, a second network node determines second configuration information based on the first message. The second configuration information includes one group of SSB CCO configuration information, and the group of SSB CCO configuration information is determined by the second network node. For example, the second network node receives a first message transmitted by the first network node, and the first message includes at least one of Cell CCO configuration information and first instruction information. The second network node determines one group of SSB CCO configuration information based on the first message and uses the group of SSB CCO configuration information as the second configuration information.

[0151] S640: The first network node receives a second message sent by a second network node, the second message including second configuration information.

[0152] For example, the second network node transmits the determined group of SSB CCO configuration information to the first network node.

[0153] Optionally, the second message includes cell coverage information corresponding to the group of SSB CCO configuration information.

[0154] It should be understood that the cell coverage information may be included in the second message and sent to the first network node together with the second configuration information, or may be sent separately to the first network node using another message.

[0155] Optionally, after the first network node receives the second message sent by the second network node, the first network node sends second configuration information in the second message to the network node of the neighboring cell, so that the cell determines the configuration that needs to be adjusted by the cell.

[0156] According to the method in this embodiment of the present application, in a 5G radio access network system, when some functions of a base station are separated into two network nodes, for example, a CU and a DU, in order to implement the function of capacity and coverage optimization, process adjustment is executed between the CU and the DU.

[0157] Please refer to the technical solutions shown in FIGS. 3 and 4. FIG. 7 is a schematic flowchart of a communication method 700 according to an embodiment of the present application. The communication method shown in FIG. 7 relates to a first network node, a second network node, and a third network node. The first network node may be a CU, or a CU-CP, described in the embodiment corresponding to FIG. 1 or FIG. 2 of the present application. The second network node may be a DU, or a CU-UP, described in the embodiment corresponding to FIG. 1 or FIG. 2 of the present application. The third network node may be an OAM entity. The method 700 includes, but is not limited to, the following steps.

[0158] The first network node may identify a CCO problem based on a message from a terminal device or another network device. The message is at least one of report information such as coverage measurement information, measurement reports, mobility-related reports (for example, radio link failure reports, handover success reports, or other reports), connection failure reports, and random access reports.

[0159] It should be understood that the first network node may identify not only CCO problems but also other problems such as load problems. The present application is not limited to this.

[0160] It should be understood that the message may be any message that helps the first network node identify a CCO problem, for example, it may further be a performance measurement report, or beam and multi-antenna related information. The present application is not limited to this.

[0161] Optionally, before the first network node identifies the CCO problem at S710, method 700 further includes the following steps.

[0162] Optional step S701: The first network node receives a third message sent by a third network node. The third network node may be an operation and management entity (OAM). The third message indicates radio resource configuration information. The first network node includes at least one of a packet data convergence protocol layer, a service data adaptation protocol layer, and a radio resource control protocol layer.

[0163] For example, the third message may include at least one of the following: an initial cell coverage state, an initial SSB coverage state, a coverage state range, an SSB coverage state range, a mapping relationship between SSB CCO configuration information and a cell coverage state, a mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or a mapping relationship between an SSB radio resource configuration and an SSB cell coverage state. The first network node may determine Cell CCO configuration and / or SSB CCO configuration information based on the third message.

[0164] Optional step S702: The second network node receives a fourth message sent by the third network node, and the fourth message indicates radio resource configuration information. The second network node and the third network node include at least one of a radio link control protocol layer, a media access control layer, and a physical layer.

[0165] For example, the fourth message may include at least one of the following: an initial cell coverage state, an initial SSB coverage state, a coverage state range, an SSB coverage state range, a mapping relationship between SSB CCO configuration information and a cell coverage state, a mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or a mapping relationship between an SSB radio resource configuration and an SSB cell coverage state. The second network node may determine Cell CCO configuration information and / or SSB CCO configuration information based on the fourth message.

[0166] Optionally, the second network node is managed by the first network node.

[0167] Optionally, the first network node and the second network node belong to the same base station.

[0168] S720: The first network node transmits the first message to the second network node.

[0169] The first message may include first indication information, and the first indication information indicates information related to network capacity and coverage problems. For an explanation of the first indication information, refer to the explanation in step S410. Details are not explained again here.

[0170] Optionally, the first message may further include second indication information, and the second indication information indicates information for identifying network capacity and coverage problems. For example, the second indication information includes at least one of report information such as coverage measurement information, a measurement report, a mobility-related report (for example, a radio link failure report, a handover success report, or another report), a connection failure report, and a random access report.

[0171] Optionally, the first message further includes third indication information. For a specific explanation of the related information, refer to the explanation in step S410 of the embodiments of the present application.

[0172] S730: The second network node determines configuration information for network capacity and coverage optimization based on the first message sent by the first network node.

[0173] For example, after receiving the first instruction information and / or the second instruction information and / or the third instruction information sent by the first network node, the second network node determines the SSB CCO configuration information and the Cell CCO configuration information based on the information.

[0174] S740: The first network node receives a second message sent by the second network node, the second message including SSB CCO configuration information and Cell CCO configuration information.

[0175] It should be understood that the Cell CCO configuration information may be included in the second message and sent to the first network node, or may be sent separately to the first network node using another message.

[0176] Optionally, after the first network node receives the second message sent by the second network node, the first network node sends the SSB CCO configuration information and the Cell CCO configuration information or the Cell CCO configuration information in the second message to a network node of a neighboring cell, so that the cell determines a configuration that needs to be adjusted by the cell.

[0177] According to the method in this embodiment of the present application, in a 5G radio access network system, when some functions of a base station are separated into two network nodes, such as a CU and a DU, process coordination is performed between the CU and the DU to implement the function of capacity and coverage optimization.

[0178] Please refer to the technical solutions shown in FIGS. 3 and 4. FIG. 8 is a schematic flowchart of a communication method 800 according to an embodiment of the present application. The communication method shown in FIG. 8 relates to a first network node, a second network node, and a third network node. The first network node may be a CU or a CU-CP described in the embodiment corresponding to FIG. 1 or FIG. 2 of the present application. The second network node may be a DU or a CU-UP described in the embodiment corresponding to FIG. 1 or FIG. 2 of the present application. The third network node may be an OAM entity. The method 800 includes, but is not limited to, the following steps.

[0179] The first network node may identify a CCO problem based on a message from a terminal device or another network device. The message is at least one of report information such as coverage measurement information, measurement report, mobility related report (for example, radio link failure report, handover success report, or another report), connection failure report, and random access report.

[0180] It should be understood that the first network node may identify not only CCO problems but also other problems such as load problems. The present application is not limited to this.

[0181] It should be understood that the message may be any message that helps the first network node identify a CCO problem, for example, it may further be a performance measurement report, or beam and multi-antenna related information. The present application is not limited to this.

[0182] Optionally, before the first network node identifies a CCO problem in S810, the method 800 further includes the following steps.

[0183] Optional step S801: A first network node receives a third message sent by a third network node. The third network node may be an operation and management entity (OAM). The third message indicates radio resource configuration information. The first network node includes at least one of a packet data convergence protocol layer, a service data adaptation protocol layer, and a radio resource control protocol layer.

[0184] For example, the third message may include at least one of the following: an initial cell coverage state, an initial SSB coverage state, a coverage state range, an SSB coverage state range, a mapping relationship between SSB CCO configuration information and cell coverage states, a mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or a mapping relationship between SSB radio resource configurations and SSB cell coverage states. The first network node may determine the Cell CCO configuration and / or the SSB CCO configuration information based on the third message.

[0185] Optional step S802: The second network node receives a fourth message sent by a third network node. The third network node may be an operation and management entity (OAM). The fourth message indicates radio resource configuration information. The second network node and the third network node include at least one of a radio link control protocol layer, a medium access control layer, and a physical layer.

[0186] For example, the fourth message may include at least one of the following: an initial cell coverage state, an initial SSB coverage state, a coverage state range, an SSB coverage state range, a mapping relationship between SSB CCO configuration information and a cell coverage state, a mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or a mapping relationship between an SSB radio resource configuration and an SSB cell coverage state. The second network node may determine Cell CCO configuration information and / or SSB CCO configuration information based on the fourth message.

[0187] Optionally, the second network node is managed by the first network node, and the first network node and the second network node belong to the same base station.

[0188] S820: The first network node transmits a first message to the second network node.

[0189] The first message includes first indication information, and the first indication information indicates information related to network capacity and coverage problems.

[0190] For the description of the first indication information, please refer to the description of step S410. Details will not be described again here.

[0191] Optionally, the first message further includes second indication information, and the second indication information indicates information for identifying network capacity and coverage problems. For example, the second indication information includes at least one of other reporting information such as coverage measurement information, measurement reports, mobility-related reports (such as radio link failure reports, handover success reports, or other reports), connection failure reports, and random access reports.

[0192] Optionally, the first message further includes third indication information. For the specific description of the related information, please refer to the description of step S410 in the embodiments of the present application.

[0193] S830: The second network node determines configuration information for network capacity and coverage optimization based on the first message transmitted by the first network node.

[0194] For example, after receiving the first instruction information and / or the second instruction information and / or the third instruction information transmitted by the first network node, the second network node determines the SSB CCO configuration information based on the information.

[0195] S840: The first network node receives the second message transmitted by the second network node. The second message includes the SSB CCO configuration information.

[0196] It should be understood that the cell coverage information may be included in the second message and transmitted to the first network node, or may be transmitted separately to the first network node using another message.

[0197] S850: The first network node determines the Cell CCO configuration information based on the second message.

[0198] Optionally, the first network node may receive the mapping relationship between the SSB CCO configuration information and the Cell CCO configuration information transmitted by the OAM, whereby the first network node determines the corresponding Cell CCO configuration information based on the SSB CCO configuration information transmitted by the second network node.

[0199] Optionally, after the first network node receives a second message sent by the second network node, the first network node determines Cell CCO configuration information based on the second message. The first network node may send the SSB CCO configuration information in the second message and the Cell CCO configuration information determined by the first network node, or the Cell CCO configuration information determined by the first network node to the network nodes of adjacent cells, whereby the cell determines the configuration that needs to be adjusted by the cell.

[0200] According to the method in this embodiment of the present application, in a 5G radio access network system, when some functions of a base station are separated into two network nodes, for example, a CU and a DU, in order to implement the functions of capacity and coverage optimization, process adjustment is executed between the CU and the DU.

[0201] To implement the functions in the foregoing embodiments, it can be understood that the first network node and the second network node include corresponding hardware structures and / or software modules for executing the functions. Those skilled in the art should easily recognize that the present application can be implemented using hardware or a combination of hardware and computer software in combination with the example units and method steps described in the embodiments disclosed in the present application. Whether the function is executed using hardware or using hardware driven by computer software depends on the specific application scenario and design constraints of the technical solution.

[0202] 9 and 10 are schematic diagrams of possible structures of a communication device according to an embodiment of the present application. The communication device may be configured to separately implement the functions of the first network node and the second network node in the aforementioned method embodiment, and thus may also implement the beneficial effects of the aforementioned method embodiment. In this embodiment of the present application, the communication device may be the first network node and the second network node in the aforementioned method embodiment, or may be a module (e.g., a chip) used in the first network node and the second network node.

[0203] 9, the communication device 900 includes a processing module 910 and a transceiver module 920. The communication device 900 is configured to perform the functionality of the first network node in an embodiment corresponding to FIG.

[0204] When the communication device 900 is configured to perform the functions of the first network node in the embodiment of the method shown in Figure 4, Figure 5, Figure 6, Figure 7, or Figure 8, for example, the details are as follows.

[0205] The processing module 910 is configured to determine one or more groups of Cell CCO configuration information and / or one or more groups of SSB CCO configuration information.

[0206] Optionally, the processing module 910 is further configured to identify a CCO problem.

[0207] The transceiver module 920 is configured to transmit a first message to a second network node, where the first message indicates first configuration information. The transceiver module 920 is further configured to receive a second message from the second network node, where the second message indicates second configuration information determined based on the first message. The first network node includes at least one of a packet data convergence protocol layer, a service data adaptation protocol layer, and a radio resource control protocol layer. The second network node includes at least one of a radio link control protocol layer, a media access control layer, and a physical layer.

[0208] Optionally, the transceiver module 920 transmits one or more groups of SSB CCO configuration information to the second network node, or transmits one or more groups of Cell CCO configuration information and / or one or more groups of SSB CCO configuration information to the second network node and is further configured as such.

[0209] Optionally, the transceiver module 920 transmits at least one of priority information, gain information, first indication information, second indication information, or third indication information to the second network node and is further configured as such. For a specific description of the related information, refer to the description of step S410 in the embodiments of this application.

[0210] Optionally, the transceiver module 920 receives a first group of Cell CCO configuration information and / or a first group of SSB CCO configuration information transmitted by the second network node, receives index information corresponding to the first group of Cell CCO configuration information and / or index information corresponding to the first group of SSB CCO configuration information transmitted by the second network node, Receive a second group of Cell CCO configuration information and / or a second group of SSB CCO configuration information transmitted by a second network node, Receive identification information corresponding to the second group of Cell CCO configuration information and / or identification information or index information corresponding to the second group of SSB CCO configuration information transmitted by the second network node and is further configured as follows.

[0211] For a specific description of the first and second groups of related information, refer to the description of step S420 in the embodiments of this application.

[0212] Optionally, the transceiver module 920 is configured to receive radio resource configuration information transmitted by OAM and is further configured as follows. The radio resource configuration information includes at least one of the following: initial cell coverage state, initial SSB coverage state, cell coverage state range, SSB coverage state range, mapping relationship between SSB CCO configuration information and cell coverage state, mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or mapping relationship between SSB radio resource configuration and SSB cell coverage state.

[0213] As shown in FIG. 10, the communication device 1000 includes a processing module 1010 and a transceiver module 1020. The communication device 1000 is configured to implement the functions of the second network node in the embodiments corresponding to FIGS. 4, 5, 6, 7, or 8.

[0214] When the communication device 1000 is configured to implement the functions of the second network node in the method embodiments shown in FIGS. 4, 5, 6, 7, or 8, for example, the following.

[0215] The transceiver module 1020 is configured to receive a first message transmitted by a first network node, where the first message indicates first configuration information, and transmit a second message to the first network node, where the second message indicates second configuration information determined based on the first message. The first network node includes at least one of a packet data convergence protocol layer, a service data adaptation protocol layer, and a radio resource control protocol layer. The second network node includes at least one of a radio link control protocol layer, a media access control layer, and a physical layer.

[0216] Optionally, the transceiver module 1020 receives one or more groups of SSB CCO configuration information transmitted by the first network node, or receives one or more groups of Cell CCO configuration information and / or one or more groups of SSB CCO configuration information transmitted by the first network node and is further configured as such.

[0217] Optionally, the transceiver module 1020 receives at least one of priority information, gain information, first indication information, second indication information, or third indication information transmitted by the first network node and is further configured as such. For a specific description of the related information, refer to the description of step S410 in the embodiments of this application.

[0218] Optionally, the transceiver module 1020 transmits a first group of Cell CCO configuration information and / or a first group of SSB CCO configuration information to the first network node, transmits index information corresponding to the first group of Cell CCO configuration information and / or index information corresponding to the first group of SSB CCO configuration information to the first network node, Transmit the second group of Cell CCO configuration information and / or the second group of SSB CCO configuration information to the first network node, Transmit the identification information corresponding to the second group of Cell CCO configuration information and / or the identification information or index information corresponding to the second group of SSB CCO configuration information to the first network node and is further configured as follows.

[0219] For specific descriptions of the first group and the second group of related information, refer to the description of step S420 in the embodiments of this application.

[0220] Optionally, the transceiver module 1020 is further configured to receive the radio resource configuration information transmitted by OAM. The radio resource configuration information includes at least one of the following: initial cell coverage state, initial SSB coverage state, cell coverage state range, SSB coverage state range, mapping relationship between SSB CCO configuration information and cell coverage state, mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or mapping relationship between SSB radio resource configuration and SSB cell coverage state.

[0221] The processing module 1010 determines the first group of Cell CCO configuration information and / or the first group of SSB CCO configuration information, determines the index information corresponding to the first group of Cell CCO configuration information and / or the index information corresponding to the first group of SSB CCO configuration information, determines the second group of Cell CCO configuration information and / or the second group of SSB CCO configuration information, and determines the identification information corresponding to the second group of Cell CCO configuration information and / or the identification information or index information corresponding to the second group of SSB CCO configuration information. and is configured as follows.

[0222] For a specific description of the first group and the second group of related information, please refer to the description of step S420 in the embodiments of this application.

[0223] As shown in FIG. 11, the communication device 1100 includes a processor 1101 and an interface circuit 1103. The processor 1101 and the interface circuit 1103 are coupled to each other. It can be understood that the interface circuit 1103 can be a transceiver or an input / output interface.

[0224] Optionally, the communication device 1100 may further include a memory 1102 configured to store instructions executed by the processor 1101, or input data required by the processor 1101 to execute the instructions, or data generated after the processor 1101 executes the instructions.

[0225] When the communication device 1100 is configured to implement the functions of the first network node shown in FIGS. 4, 5, 6, 7, or 8, the processor 1101 is configured to implement the functions of the processing module 910, and the interface circuit 1103 is configured to implement the functions of the transceiver module 920.

[0226] When the communication device 1100 is configured to implement the functions of the second network node shown in FIGS. 4, 5, 6, 7, or 8, the processor 1101 is configured to implement the functions of the processing module 1010, and the interface circuit 1103 is configured to implement the functions of the transceiver module 1020.

[0227] Optionally, the communication device 1100 further includes a bus 1104. The processor 1101, the interface circuit 1103, and the memory 1102 can communicate with each other via the bus 1104.

[0228] One embodiment of the present application further provides a system chip. The system chip includes an input / output interface, at least one processor, at least one memory, and a bus. The at least one memory is configured to store instructions, and the at least one processor is configured to call instructions in the at least one memory to perform operations in the method of the foregoing aspect.

[0229] It should be noted that in the embodiments of the present application, the method embodiments in the embodiments of the present application may be applied to or implemented by a processor. The processor may be an integrated circuit chip having signal processing capabilities. In the implementation process, the steps in the above-mentioned method embodiments may be implemented using hardware integrated logic circuitry in the processor or using instructions in the form of software. The processor may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or another programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. It may implement or perform the methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor, or this processor may be any conventional processor, etc. The steps of the methods disclosed with reference to the embodiments of the present application may be directly executed and completed using a hardware decoding processor, or may be executed and completed using a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium that is mature in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, or a register. The storage medium is located in the memory, and the processor reads information in the memory and performs the steps in the aforementioned method together with the processor hardware.

[0230] The memory in this embodiment of the present application can be a volatile memory or a non-volatile memory, or can include a volatile memory and a non-volatile memory. The non-volatile memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory may be a Random Access Memory (RAM) used as an external cache. By way of example and not limitation, many forms of RAM, such as static RAM (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) may be used. It should be noted that the memory of the systems and methods described herein includes, but is not limited to, these memories and any other suitable type of memory.

[0231] All or part of the foregoing embodiments may be implemented using software, hardware, firmware, or any combination thereof. When software is used to implement an embodiment, all or part of the embodiment may be implemented in the form of a computer program product. The computer program product may include one or more computer instructions. When the computer instructions are loaded and executed on a computer, the procedures or functions according to the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by means of wired (such as coaxial cable, optical fiber, or digital subscriber line (DSL)) or wireless (such as infrared, wireless, and microwave, etc.). The computer-readable storage medium may be any available medium accessible by a computer or a data storage device incorporating one or more available media, such as a server or a data center. The available medium may be a magnetic medium (such as a floppy disk, a hard disk, or a magnetic disk), an optical medium (such as a DVD), or a semiconductor medium (such as a solid-state drive (SSD)), etc.

[0232] One skilled in the art can recognize that, in combination with the examples described in the embodiments disclosed herein, the units and algorithm steps can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether a function is executed by hardware or by software depends on the specific application and design constraints of the technical solution. One skilled in the art may use different methods to implement the described functions for each specific application, but the embodiments should not be considered to exceed the scope of this application.

[0233] For the sake of simplicity, for the detailed operation processes of the aforementioned systems, devices, and units, one skilled in the art can clearly understand by referring to the corresponding processes in the embodiments of the aforementioned methods. Details will not be described again here.

[0234] In some embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the described embodiments of the device are merely examples. For example, the division into units is only a logical function division, and in actual embodiments, other divisions may be possible. For example, multiple units or components may be combined or integrated as another system, or some functions may be ignored or not executed. In addition, the presented or described mutual coupling, direct coupling, or communication connection may be implemented using some interfaces. The indirect coupling or communication connection between devices or units may be implemented in electronic, mechanical, or other forms.

[0235] The units described as separate parts may or may not be physically separate, and the parts presented as units may or may not be physical units. They may be arranged in one location or distributed among multiple network units. To achieve the objectives of the solution of the embodiments, some or all of the units may be selected based on actual requirements.

[0236] In addition, the functional units in the embodiments of the present application may be integrated as one processing unit, each of the units may physically exist independently, or two or more units may be integrated as one unit.

[0237] When the function is implemented in the form of a software functional unit and sold or used as an independent product, the function may be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or a part of the technical solution, may also be implemented in the form of a software product. The computer software product includes several instructions stored in a storage medium for instructing 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 method described in the embodiments of the present application. The aforementioned storage medium includes any medium that can store program codes, such as a USB flash drive, a removable hard disk, a read-only memory, a random access memory, a magnetic disk, or an optical disk.

[0238] The foregoing description is only a specific embodiment of the present application and is not intended to limit the protection scope of the present application. Any deformation or substitution that can be easily conceived by those skilled in the art within the technical scope disclosed in the present application shall be within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Description of Reference Numerals

[0239] 101 Central unit 102 Distributed unit 400 Communication method 500 Communication method 600 Communication method 700 Communication method 800 Communication method 900 Communication device 910 Processing module 920 Transceiver Module 1000 Communication Device 1010 Processing Module 1020 Transceiver Module 1100 Communication Device 1101 Processor 1102 Memory 1103 Interface Circuit 1104 Bus

Claims

1. A communication method, comprising: a step of transmitting, by a first network node, a first message to a second network node, wherein the first message includes first indication information, and the first indication information indicates a network capacity and a coverage optimization problem; a step of receiving, by the first network node, a second message from the second network node, wherein the second message includes second configuration information determined based on the first indication information; wherein the first network node includes at least one of a packet data convergence protocol layer, a service data adaptation protocol layer, and a radio resource control protocol layer, and the second network node includes at least one of a radio link control protocol layer, a media access control layer, and a physical layer; the second configuration information includes a second group of cell capacity and coverage optimization (Cell CCO) configuration information and a second group of beam synchronization signal block capacity and coverage optimization (SSB CCO) configuration information, and the second group of the Cell CCO configuration information and the second group of the SSB CCO configuration information are determined by the second network node; the first network node and the second network node belong to the same base station.

2. The communication method according to claim 1, wherein the first message further includes first configuration information, and the first configuration information includes one or more groups of SSB CCO configuration information determined by the first network node.

3. The communication method according to claim 2, wherein the first configuration information includes one or more groups of Cell CCO configuration information determined by the first network node.

4. The first message further includes priority information, the priority information indicates the priority of the one or more groups of the SSB CCO configuration information, and / or the second configuration information is determined based on the priority information.

5. The first message further includes priority information, the priority information indicates the priority of the one or more groups of the Cell CCO configuration information. The second configuration information is determined based on the priority information, and the communication method according to claim 3.

6. The first message further includes second indication information, and the second indication information indicates information for identifying network capacity and coverage optimization problems. The second configuration information is determined based on the second indication information, and the communication method according to any one of claims 1 to 5.

7. The second configuration information is The first group of Cell CCO configuration information and / or the first group of SSB CCO configuration information, wherein the one or more groups of the SSB CCO configuration information determined by the first network node include the first group of the SSB CCO configuration information, and the one or more groups of the Cell CCO configuration information determined by the first network node include the first group of the Cell CCO configuration information, the first group of Cell CCO configuration information and / or the first group of SSB CCO configuration information include, or The second configuration information is The identification information corresponding to the first group of Cell CCO configuration information and / or the identification information corresponding to the first group of SSB CCO configuration information, wherein the one or more groups of the SSB CCO configuration information determined by the first network node include the first group of the Cell CCO configuration information, and the one or more groups of the Cell CCO configuration information determined by the first network node include the first group of the Cell CCO configuration information, the identification information corresponding to the first group of Cell CCO configuration information and / or the identification information corresponding to the first group of SSB CCO configuration information include, and the communication method according to any one of claims 2 to 5.

8. The second configuration information is The second group of Cell CCO configuration information and the second group of SSB CCO configuration information, wherein the second group of the Cell CCO configuration information and the second group of the SSB CCO configuration information are determined by the second network node, the second group of Cell CCO configuration information and the second group of SSB CCO configuration information include, or The second configuration information is Identification information corresponding to a second group of Cell CCO configuration information and / or identification information corresponding to a second group of SSB CCO configuration information, wherein the second group of the Cell CCO configuration information and / or the second group of the SSB CCO configuration information is determined by the second network node, the identification information corresponding to the second group of Cell CCO configuration information and / or the identification information corresponding to the second group of SSB CCO configuration information The communication method according to any one of claims 2 to 6, comprising:

9. Before the step of transmitting, by a first network node, a first message to a second network node, the method further comprises, by the first network node, identifying a network capacity and coverage optimization problem, the communication method according to any one of claims 1 to 8

10. Before the step of identifying, by the first network node, the network capacity and coverage optimization problem, the communication method comprises Receiving, by the first network node, radio resource configuration information transmitted by a third network node, the radio resource configuration information including at least one of the following: an initial cell coverage state, an initial SSB coverage state, a cell coverage state range, an SSB coverage state range, a mapping relationship between SSB CCO configuration information and a cell coverage state, a mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or a mapping relationship between an SSB radio resource configuration and an SSB cell coverage state The communication method according to claim 9, further comprising:

11. A communication method, comprising: Receiving, by a second network node, a first message transmitted by a first network node, the first message including first indication information, the first indication information indicating a network capacity and coverage optimization problem Transmitting, by the second network node, a second message to the first network node, the second message including second configuration information determined based on the first indication information and The first network node includes at least one of a packet data convergence protocol layer, a service data adaptation protocol layer, and a radio resource control protocol layer, and the second network node includes at least one of a radio link control protocol layer, a media access control layer, and a physical layer. The second configuration information includes a second group of cell capacity and coverage optimization (Cell CCO) configuration information and a second group of beam synchronization signal block capacity and coverage optimization (SSB CCO) configuration information, and the second group of the Cell CCO configuration information and the second group of the SSB CCO configuration information are determined by the second network node. A communication method in which the first network node and the second network node belong to the same base station.

12. The communication method according to claim 11, wherein the first message further includes first configuration information, and the first configuration information includes one or more groups of SSB CCO configuration information determined by the first network node.

13. The communication method according to claim 12, wherein the first configuration information further includes one or more groups of Cell CCO configuration information determined by the first network node.

14. The first message further includes priority information. The priority information indicates the priority of the one or more groups of the SSB CCO configuration information, and / or The communication method according to claim 12, wherein the second configuration information is determined based on the priority information.

15. The first message further includes priority information. The priority information indicates the priority of the one or more groups of the Cell CCO configuration information. The communication method according to claim 13, wherein the second configuration information is determined based on the priority information.

16. The first message further includes second indication information, and the second indication information indicates information for identifying a network capacity and coverage optimization problem. The communication method according to any one of claims 11 to 15, wherein the second configuration information is determined based on the second indication information.

17. The second configuration information is The first group of Cell CCO configuration information and / or the first group of SSB CCO configuration information, wherein the one or more groups of the SSB CCO configuration information determined by the first network node include the first group of the SSB CCO configuration information, and the one or more groups of the Cell CCO configuration information determined by the first network node include the first group of the Cell CCO configuration information, the first group of Cell CCO configuration information and / or the first group of SSB CCO configuration information include, or the second configuration information is identification information corresponding to the first group of Cell CCO configuration information and / or identification information corresponding to the first group of SSB CCO configuration information, wherein the one or more groups of the SSB CCO configuration information determined by the first network node include the first group of the Cell CCO configuration information, and the one or more groups of the Cell CCO configuration information determined by the first network node include the first group of the Cell CCO configuration information, identification information corresponding to the first group of Cell CCO configuration information and / or identification information corresponding to the first group of SSB CCO configuration information The communication method according to any one of claims 12 to 15, comprising.

18. The second configuration information is the second group of Cell CCO configuration information and the second group of SSB CCO configuration information, wherein the second group of the Cell CCO configuration information and the second group of the SSB CCO configuration information are determined by the second network node, the second group of Cell CCO configuration information and the second group of SSB CCO configuration information include, or the second configuration information is Identification information corresponding to a second group of Cell CCO configuration information and / or identification information corresponding to a second group of SSB CCO configuration information, wherein the second group of the Cell CCO configuration information and / or the second group of the SSB CCO configuration information is determined by the second network node, the identification information corresponding to the second group of the Cell CCO configuration information and / or the identification information corresponding to the second group of the SSB CCO configuration information The communication method according to any one of claims 12 to 16, comprising:

19. Before the first network node transmits the first message to the second network node, the method further comprises, by the first network node, identifying network capacity and coverage optimization problems, the communication method according to any one of claims 11 to 17

20. Before the step of identifying the network capacity and coverage optimization problems by the first network node, the method comprises: Receiving, by the first network node or the second network node, wireless resource configuration information transmitted by a third network node, the wireless resource configuration information including at least one of the following: an initial cell coverage state, an initial SSB coverage state, a cell coverage state range, an SSB coverage state range, a mapping relationship between SSB CCO configuration information and a cell coverage state, a mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or a mapping relationship between SSB wireless resource configuration and an SSB cell coverage state The communication method according to claim 19, further comprising:

21. A communication device for use in a first network node, comprising a module configured to execute the method according to any one of claims 1 to 10

22. A communication device for use in a second network node, comprising a module configured to execute the method according to any one of claims 11 to 20

23. A communication device comprising a processor and an interface circuit for use in a first network node, wherein the interface circuit is configured to receive a signal from a device other than the device and transmit the signal to the processor or transmit a signal from the processor to the device other than the device, and the processor is configured to implement the method according to any one of claims 1 to 10 by using a logic circuit or executing code instructions.

24. A communication device comprising a processor and an interface circuit for use in a second network node, wherein the interface circuit is configured to receive a signal from a device other than the device and transmit the signal to the processor or transmit a signal from the processor to the device other than the device, and the processor is configured to implement the method according to any one of claims 11 to 20 by using a logic circuit or executing code instructions.

25. A computer-readable storage medium storing a computer program or instructions, wherein when the computer program or instructions are executed by a communication device, the method according to any one of claims 1 to 10 is implemented.

26. A computer-readable storage medium storing a computer program or instructions, wherein when the computer program or instructions are executed by a communication device, the method according to any one of claims 11 to 20 is implemented.

27. A computer program, wherein when the computer program is executed by a communication device, the method according to any one of claims 1 to 10 is implemented.

28. A computer program, wherein when the computer program is executed by a communication device, the method according to any one of claims 11 to 20 is implemented.

29. A communication system comprising the communication device according to claim 21 and the communication device according to claim 22.

30. A communication system comprising the communication device according to claim 23 and the communication device according to claim 24.

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