A communication method and a communication device thereof

Abstract

The application provides a communication method and device. The communication method comprises: a first network node sending a first message to a second network node, the first message comprising first configuration information; the first network node receiving a second message from the second network node, the second message comprising second configuration information determined based on the first message; the first network node comprising 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 comprising at least one of a radio link control protocol layer, a medium access control layer and a physical layer. Through the embodiment of the application, when part of the functions in the network device are separated into two network nodes, the first network node and the second network node can cooperate with each other to determine the capacity coverage related configuration information.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a communication method and apparatus for optimizing network capacity coverage. Background Technology

[0002] In 5G (5th-Generation) communication systems, Centralized Unit (CU) nodes and Distributed Unit (DU) nodes are introduced in base stations (gNBs). In other words, the traditionally deployed Base Band Unit (BBU) is divided into two parts: CU and DU.

[0003] For some important wireless communication processes, such as the identification and optimization of capacity and coverage optimization (CCO) problems, the specific processing procedures and functional implementations need to be redesigned under the CU-DU split architecture due to the change in base station architecture. Summary of the Invention

[0004] This application discloses a communication method and a communication device, which enables capacity coverage optimization in a 5G wireless access network system when some functions of a traditional base station are separated into two network nodes.

[0005] A first aspect of this application discloses a communication method, comprising: a first network node sending a first message to a second network node, the first message including first configuration information; the first network node receiving 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 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 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, thereby enabling the first network node and the second network node to cooperate to achieve capacity coverage optimization.

[0006] In one possible implementation, the first configuration information includes one or more sets of beam synchronization signal block capacity coverage (SSB CCO) configuration information determined by the first network node. The second network node selects one set of SSB CCO configuration information from the one or more sets of SSB CCO configuration information, so that the first network node and the second network node cooperate with each other to achieve the capacity coverage optimization function.

[0007] In another possible implementation, the first configuration information includes one or more sets of Cell Capacity Coverage (CCO) configuration information determined by the first network node. This allows the second network node to select one set of Cell CCO configuration information or one set of Cell CCO configuration information and multiple SSB CCO configuration information corresponding to the Cell CCO configuration information from the one or more sets of Cell CCO configuration information. Thus, the first network node and the second network node cooperate to achieve capacity coverage optimization.

[0008] In another possible implementation, the first message further includes: priority information; the priority information indicates the priority of the set or more sets of SSB CCO configuration information;

[0009] and / or

[0010] This priority information indicates the priority of the set or more sets of Cell CCO configuration information. Thus, the second network node can refer to this priority information to select a set of Cell CCO configuration information, and / or a set or more sets of SSB CCO configuration information corresponding to that set of Cell CCO configuration information; or a set of SSB CCO configuration information.

[0011] In another possible implementation, the first message further includes: first indication information, which is used to indicate a network capacity coverage issue. Thus, the second network node can refer to the first indication information to determine a set of Cell CCO configuration information, and / or a set of one or more sets of SSB CCO configuration information corresponding to that set of Cell CCO configuration information; or a set of SSB CCO configuration information.

[0012] In another possible implementation, the first message further includes a second indication message, which indicates information identifying the network capacity coverage problem. This allows the first network node to send the information identifying the network capacity coverage problem to a second network node, enabling the second network node to better select or determine the Cell CCO configuration information or the SSB CCO configuration information.

[0013] In another possible implementation, the second configuration information includes: a first set of Cell CCO configuration information and / or a first set of SSB CCO configuration information, wherein the first set of SSB CCO configuration information is included in one or more sets of SSB CCO configuration information determined by the first network node, and the first set of SSB CCO configuration information is included in one or more sets of Cell CCO configuration information determined by the first network node.

[0014] Alternatively, the second configuration information may include:

[0015] The identifier information of the first group of Cell CCO configuration information, and / or the identifier information corresponding to the first group of SSB CCO configuration information, the first group of Cell CCO configuration information included in the one or more groups of SSB CCO configuration information determined by the first network node, and the first group of Cell CCO configuration information included in the one or more groups of Cell CCO configuration information determined by the first network node.

[0016] In another possible implementation, the second configuration information includes: a second set of Cell CCO configuration information and / or a second set of SSB CCO configuration information, wherein the second set of Cell CCO configuration information and / or the second set of Cell CCO configuration information is determined by the second network node;

[0017] Alternatively, the second configuration information may include:

[0018] 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 determined by the second network node.

[0019] In another possible implementation, before the first network node sends the first message to the second network node, the method further includes: the first network node identifying the network capacity coverage problem.

[0020] In another possible implementation, before the first network node identifies the 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: 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.

[0021] In another possible implementation, the first network node and the second network node belong to the same base station.

[0022] By using the communication method shown in the first aspect of this application, when some functions in the base station are separated into two network nodes, the function of capacity coverage optimization can be achieved through the cooperation between the two network nodes.

[0023] A second aspect of this application provides a network device applied to a first network node. The network device includes a memory and a processor. The memory is used to store instructions, and the processor is used to invoke the instructions in the memory to perform the operations in the method of the first aspect or any possible implementation thereof.

[0024] A third aspect of this application discloses a communication method, comprising: a second network node receiving a first message sent by a first network node, the first message including first configuration information; the second network node sending a second message to the first network node, the second message including second configuration information determined based on the first message; 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 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, thereby enabling the first and second network nodes to cooperate and achieve capacity coverage optimization.

[0025] In one possible implementation, the first configuration information includes one or more sets of beam synchronization signal block capacity coverage (SSB CCO) configuration information, which is determined by the first network node. The second network node then selects one set of SSB CCO configuration information from these sets, allowing the first and second network nodes to cooperate and achieve capacity coverage optimization.

[0026] In another possible implementation, the first configuration information further includes: one or more sets of Cell CCO configuration information, which are determined by the first network node. This allows the second network node to select either a set of Cell CCO configuration information or a set of CellCCE configuration information and multiple SSB CCO configuration information corresponding to that Cell CCO configuration information from the one or more sets of Cell CCO configuration information. This enables the first network node and the second network node to cooperate to achieve capacity coverage optimization.

[0027] In another possible implementation, the first message includes: priority information; the priority information indicates the priority of the set or more sets of SSB CCO configuration information;

[0028] and / or

[0029] This priority information indicates the priority of the set or more sets of Cell CCO configuration information. Thus, the second network node can refer to this priority information to select a set of Cell CCO configuration information, and / or a set or more sets of SSB CCO configuration information corresponding to that set of Cell CCO configuration information; or a set of SSB CCO configuration information.

[0030] In another possible implementation, the first message further includes: first indication information, which is used to indicate a network capacity coverage issue. Thus, the second network node can refer to the first indication information to determine a set of Cell CCO configuration information, and / or a set of one or more sets of SSB CCO configuration information corresponding to that set of Cell CCO configuration information; or a set of SSB CCO configuration information.

[0031] In another possible implementation, the first message further includes: second indication information, which indicates information used to identify network capacity coverage issues. This allows the second network node to better select or determine the Cell CCO configuration information or the SSB CCO configuration information based on the information regarding the network capacity coverage issue.

[0032] In another possible implementation, the second configuration information includes: a first set of Cell CCO configuration information and / or a first set of SSB CCO configuration information, wherein the first set of SSB CCO configuration information is included in one or more sets of SSB CCO configuration information determined by the first network node, and the first set of Cell CCO configuration information is included in one or more sets of Cell CCO configuration information determined by the first network node.

[0033] Alternatively, the second configuration information may include:

[0034] The identifier information of the first group of Cell CCO configuration information, and / or the identifier information corresponding to the first group of SSB CCO configuration information, the first group of Cell CCO configuration information included in the one or more groups of SSB CCO configuration information determined by the first network node, and the first group of Cell CCO configuration information included in the one or more groups of Cell CCO configuration information determined by the first network node.

[0035] In another possible implementation, the second configuration information includes a second set of Cell CCO configuration information and / or a second set of SSB CCO configuration information, which is determined by the second network node.

[0036] Alternatively, the second configuration information may include:

[0037] 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 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 method further includes: the first network node identifying a network capacity coverage problem.

[0039] In another possible implementation, before the first network node identifies the 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: 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.

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

[0041] The communication method in this application embodiment can achieve capacity coverage optimization through the cooperation of two network nodes.

[0042] A fourth aspect of this application provides a network device applied to a second network node. The network device includes a memory and a processor. The memory stores instructions, and the processor invokes the instructions in the memory to perform operations in the methods of the third aspect or any possible implementation thereof.

[0043] A fifth aspect of this application discloses a communication method, comprising: a first network node sending a first message to a second network node, the first message including first indication information for indicating information about network capacity coverage issues; the first network node receiving a second message from the second network node, the second message including configuration information for network capacity coverage optimization determined based on the first message; 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 media access control layer, and a physical layer.

[0044] In one possible implementation, the first message also includes second indication information, which indicates information that identifies the network capacity coverage problem.

[0045] In another possible implementation, the second message includes: Cell CCO configuration information and / or SSB CCO configuration information, which 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 coverage issues.

[0047] In another possible implementation, before the first network node identifies the network capacity coverage problem, the communication method further includes: the first network node or the second network node receiving radio resource configuration information sent by the third network node, the radio resource configuration information including 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.

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

[0049] The communication method in this application embodiment can achieve capacity coverage optimization through the cooperation of two network nodes.

[0050] A sixth aspect of this application provides a network device applied to a first network node. The network device includes a memory and a processor. The memory is used to store instructions, and the processor is used to invoke the instructions in the memory to perform operations in the methods of the fifth aspect or any possible implementation thereof.

[0051] A seventh aspect of this application discloses a communication method, comprising: a second network node receiving a first message sent from a first network node, the first message including first indication information for indicating network capacity coverage problem information; the second network node sending a second message to the first network node, the second message including configuration information for network capacity coverage optimization determined based on the first message; 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 media access control layer, and a physical layer.

[0052] In one possible implementation, the first message also includes second indication information, which indicates information that identifies the network capacity coverage problem.

[0053] In another possible implementation, the second message includes: Cell CCO configuration information and / or SSB CCO configuration information, which are determined by the second network node.

[0054] 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 coverage issues.

[0055] In another possible implementation, before the first network node identifies the network capacity coverage problem, the communication method further includes: the first network node or the second network node receiving radio resource configuration information sent by the third network node, the radio resource configuration information including 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.

[0056] In another possible implementation, the first network node and the second network node belong to the same base station.

[0057] The communication method in this application embodiment can achieve capacity coverage optimization through the cooperation of two network nodes.

[0058] The eighth aspect of this application provides a network device applied to a second network node. The network device includes a memory and a processor. The memory is used to store instructions, and the processor is used to invoke the instructions in the memory to perform operations in the methods of the seventh aspect or any possible implementation of the seventh aspect.

[0059] A ninth aspect of this application provides a communication device applied to a first network node, including a module for performing the methods described in the first aspect or possible implementations of the first aspect.

[0060] A tenth aspect of this application provides a communication device applied to a second network node, including a module for performing the methods described in the third aspect or possible implementations of the third aspect.

[0061] The eleventh aspect of this application provides a communication device applied to a first network node, including a module for performing the methods described in the fifth aspect or possible implementations of the fifth aspect.

[0062] The twelfth aspect of this application provides a communication device applied to a second network node, including a module for performing the methods described in the seventh aspect or possible implementations of the seventh aspect.

[0063] The thirteenth aspect of this application provides a communication device applied to a first network node, including a processor and an interface circuit. The interface circuit is used to receive signals from other devices outside the device and transmit them to the processor, or to send signals from the processor to other devices outside the device. The processor is used to implement the methods described in the first aspect or possible implementations of the first aspect through logic circuits or execution code instructions.

[0064] The fourteenth aspect of this application provides a communication device applied to a second network node, including a processor and an interface circuit. The interface circuit is used to receive signals from other devices outside the device and transmit them to the processor, or to send signals from the processor to other devices outside the device. The processor is used to implement the methods described in the third aspect or possible implementations of the third aspect through logic circuits or execution code instructions.

[0065] The fifteenth aspect of this application provides a communication device applied to a first network node, including a processor and an interface circuit. The interface circuit is used to receive signals from other devices outside the device and transmit them to the processor, or to send signals from the processor to other devices outside the device. The processor is used to implement the methods described in the fifth aspect or possible implementations of the fifth aspect through logic circuits or execution code instructions.

[0066] The sixteenth aspect of this application provides a communication device applied to a second network node, including a processor and an interface circuit. The interface circuit is used to receive signals from other devices outside the device and transmit them to the processor, or to send signals from the processor to other devices outside the device. The processor is used to implement the methods described in the seventh aspect or possible implementations of the seventh aspect through logic circuits or execution code instructions.

[0067] The seventeenth aspect of this application provides a computer-readable storage medium storing a computer program or instructions that, when executed by a communication device, implement the method described in the first aspect or possible implementations of the first aspect, or implement the method described in the third aspect or possible implementations of the third aspect, or implement the method described in the fifth aspect or possible implementations of the fifth aspect, or implement the method described in the seventh aspect or possible implementations of the seventh aspect.

[0068] The eighteenth aspect of this application provides a computer program product that, when executed by a communication device, implements the method described in the first aspect or a possible implementation of the first aspect, or implements the method described in the third aspect or a possible implementation of the third aspect, or implements the method described in the fifth aspect or a possible implementation of the fifth aspect, or implements the method described in the seventh aspect or a possible implementation of the seventh aspect.

[0069] A nineteenth aspect of this application provides a communication system comprising one or more of the following: a communication device as described in any of aspects nine through sixteen; or the communication system comprising a first network node and a second network node as described in aspects one through eight. Attached Figure Description

[0070] Figure 1 This is a schematic diagram illustrating an application scenario of the technical solution according to an embodiment of this application;

[0071] Figure 2 This is a schematic diagram illustrating another application scenario of the technical solution according to the embodiments of this application;

[0072] Figure 3 This is a schematic block diagram of a network device according to an embodiment of this application;

[0073] Figure 4 A schematic flowchart of a communication method according to an embodiment of this application is shown;

[0074] Figure 5 Another schematic flowchart of a communication method according to an embodiment of this application is shown;

[0075] Figure 6 A further schematic flowchart of a communication method according to an embodiment of this application is shown;

[0076] Figure 7 A further schematic flowchart of a communication method according to an embodiment of this application is shown;

[0077] Figure 8 A further schematic flowchart of a communication method according to an embodiment of this application is shown;

[0078] Figure 9 This is a schematic block diagram of a communication device according to an embodiment of this application;

[0079] Figure 10 This is another schematic block diagram of a communication device according to an embodiment of this application;

[0080] Figure 11 This is another schematic block diagram of a communication device according to an embodiment of this application. Detailed Implementation

[0081] The embodiments of this application are described below with reference to the accompanying drawings.

[0082] The following explanations of some terms used in the embodiments of this application are provided to facilitate understanding by those skilled in the art: 1) A terminal device is a device with wireless transceiver capabilities. A terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on water (such as on ships); and it can also be deployed in the air (e.g., on airplanes, balloons, and satellites). Terminal devices can be mobile phones, tablets, computers with wireless transceiver capabilities, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminal devices in industrial control, wireless terminal devices in self-driving, wireless terminal devices in remote medical care, wireless terminal devices in smart grids, wireless terminals in transportation safety, wireless terminal devices in smart cities, wireless terminals in smart homes, and may also include user equipment (UE), etc.

[0083] 2) Network equipment. The network equipment referred to in this application can be equipment in a wireless network, such as nodes in the radio access network (RAN) that connect terminal equipment to the wireless network. Currently, some examples of RAN nodes include: next-generation node B (gNB), transmission reception point (TRP), evolved Node B (eNB), base band unit (BBU), or wireless fidelity (Wi-Fi) access point (AP), integrated access and backhaul (IAB), etc., in the 5th generation (5G) NR system (also simply referred to as the NR system).

[0084] In this application embodiment, the device used to implement the functions of the aforementioned network device can be the network device itself, or it can be a device capable of supporting the network device in implementing all or part of its necessary functions. For example, it can be a chip system, a single-board hardware, or an entity composed of software and hardware. This device can be installed in the network device. In the technical solutions provided in this application embodiment, the network device is used as an example to describe the technical solutions provided in this application embodiment.

[0085] It should be understood that, in the embodiments of this application, the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0086] It should be understood that in the embodiments of this application, the terms "system" and "network" are often used interchangeably herein. It should be understood that in the embodiments of this application, the term "and / or" is generally used to describe the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. It should be understood that the character " / " appearing in the embodiments of this application generally indicates that the preceding and following associated objects have an "or" relationship.

[0087] It should be understood that in the embodiments of this application, "A indicates B" can mean that A directly contains B, or it can mean that A indicates B through a mapping relationship.

[0088] It should be understood that in the embodiments of this application, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of a single item or a plurality of items. For example, at least one of a, b, or c can represent: a, b, c, ab, a-c, bc, or abc, where a, b, and c can be a single item or multiple items.

[0089] It should be understood that in the embodiments of this application, the numbering of terms is generally for the convenience of differentiation. The numbering does not mean that the terms have a difference in order or priority. For example, "first group of information" and "second group of information" are usually only used to distinguish between the two groups of information, and should not limit the implementation process of the embodiments of this application.

[0090] like Figure 1As shown, in a network structure according to an embodiment of this application, the network device, taking a gNB in ​​an NR system as an example, may include a centralized unit (CU) 101 and a distributed unit (DU) 102. Exemplarily, 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, and a Media Access Control (MAC) protocol layer. The Control (MAC) protocol layer and its functions, as well as the physical layer PHY and its functions, are included. The CU (Control Unit) can contain all or some of the protocol layer functions of the network device. For example, the CU may have the RRC, PDCP, and SDAP protocol layers and their functions. In other implementations, the CU may also contain the RRC, PDCP, and RLC protocol layers. Alternatively, the CU may be implemented to include the RRC, PDCP, and MAC protocol layers, and even some or all of the physical layer PHY functions. Similarly, the DU (Distributed Unit) can also be implemented to have all or some of the protocol layer functions of the network device. For example, the DU may include the RLC, MAC, and PHY protocol layers and their functions. This application does not limit the specific protocol layers and their functions included in the CU and DU.

[0091] based on Figure 1 ,like Figure 2As shown, the CU can be further divided into the CU Control Plane (CU-CP) entity and the CU User Plane (CU-UP) entity. The CU-CP entity is responsible for control plane functions, including the RRC protocol layer and its functions, and 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 broadcasting, RRC connection management, access layer security management, radio resource management, mobility management, etc., while the PDCP-C is mainly responsible for control plane data encryption / decryption, integrity protection, and data transmission. The CU-UP entity is responsible for user plane functions, including the SDAP protocol layer and its functions, and the Packet Data Convergence Protocol-User Plane (PDCP-U) protocol layer and its functions. For example, SDAP is mainly responsible for processing core network data and mapping flows to bearers, while the PDCP-U is mainly responsible for data plane encryption / decryption, integrity protection, header compression, sequence number maintenance, and data transmission. Figure 2 As shown, CU-CP and CU-UP can communicate via the E1 interface, CU-CP and DU can communicate via the F1 control plane interface (F1-C), and CU-UP and DU can communicate via the F1 user plane interface (F1-U).

[0092] In a CU-DU architecture, the radio resource configuration parameters of a cell are generally adjusted by the DU, but coverage or load issues are typically detected by the CU. The DU makes decisions regarding radio resource configuration parameters because it has a clearer understanding of the cell's radio resource configuration parameters, such as transmit power, antenna angle, SSB direction, and cell resource usage. The CU has a global awareness of all cells under its management and their corresponding neighboring cells, enabling better coordination between adjacent cells. However, the CU may not be aware of the cell's radio resource configuration parameters or may only have partial information. For example, if the DU adjusts the transmit power in the coverage parameters and sends this information to the CU, the CU may not understand the relationship between this transmit power and coverage. The CU then sends this parameter to neighboring cells, where the CUs and DUs may also not understand it, making it impossible for cells to determine their respective coverage configuration adjustments. To address these issues, this application proposes the following solutions.

[0093] Please see Figure 3 , Figure 3The illustration shows an application scenario of the technical solution of this application embodiment. In this application scenario, the wireless 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 application embodiment can be... Figure 1 or Figure 2 In the CU, the second network node is Figure 1 or Figure 2 The following description of the embodiments of this application will focus on the operations performed by the first network node and the second network node. It is understood that the first network node in the embodiments of this application may also be a CU-CP, and the second network node may be a DU or a CU-UP.

[0094] based on Figure 3 The application scenarios described Figure 4 A schematic flowchart of a communication method 400 according to an embodiment of this application is shown. The method 400 includes, but is not limited to, the following steps:

[0095] S410, the first network node sends a first message to the second network node, the first message including first configuration information.

[0096] As described below in this embodiment, the first message may include at least one of the following: one or more sets of Cell CCO configuration information and / or one or more sets of SSB CCO configuration information, priority information, gain information, first indication information, second indication information, or third indication information.

[0097] For example, the first configuration information may include one or more sets of SSB CCO configuration information determined by the first network node. Alternatively, the first configuration information may be one or more sets of SSB CCO configuration information for one or more cells determined by the first network node.

[0098] Optionally, the first configuration information may further include one or more sets of Cell CCO configuration information for one or more cells. The one or more sets of Cell CCO configuration information for these cells are determined by the first network node and sent by the first network node to the second network node.

[0099] For example, the first message may further include priority information, which indicates the priority of one or more sets of Cell CCO configuration information and / or one or more sets of SSB CCO configuration information for one or more cells determined by the first network node. The second network node can then select one set of Cell CCO configuration information and / or one or more sets of SSB CCO configuration information from the set of one or more sets of Cell CCO configuration information and / or one or more sets of SSB CCO configuration information for the one or more cells based on this priority information.

[0100] Optionally, the first message may further include gain information, which indicates the possible gain effect of one or more sets of Cell CCO and / or SSB CCO configuration information for one or more cells determined by the first network node. The second network node can then select an optimal set of Cell CCO and / or SSB CCO configuration information from the set of one or more sets of Cell CCO and / or SSB CCO configuration information for the one or more cells based on this gain information.

[0101] Optionally, the first message may further include first indication information, which is used to indicate a Network Capacity Coverage (CCO) problem. For example, the first indication information sent 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: weak coverage, coverage gap, over-coverage, interference problem, uplink / downlink coverage imbalance, or other problem types. The problem description information is used to describe the detailed problem of CCO. The problem description information may include at least one of the following: location information, geographical location information, distance information, time of occurrence, severity level of the problem, problem cell, and / or SSB information. The location information, geographical location information, distance information, etc., of the coverage problem can enable the second network node to determine the occurrence of coverage problem SSB information. The time of occurrence of the coverage problem can enable the second network node to determine the time period during which coverage optimization is needed. The severity level of the coverage problem can enable the second network node to determine the range of radio resource parameters to be adjusted. Problem cell and / or SSB information can indicate information about cells and / or SSBs with CCO issues, such as cell identification information and SSB identification information, enabling the second network node to identify the cells and / or SSBs where the CCO issue has occurred. Optionally, the problem cell and / or SSB information can also indicate the scenario in which the CCO issue occurred. For example, if the problem cells include cell 1 and cell 2, the scenario could be "from cell 1 to cell 2", "from cell 2 to cell 1", or "bidirectional movement".

[0102] Optionally, the first message may also include second indication information, which is used to indicate information identifying network capacity coverage issues. For example, the second indication information may include at least one of the following report information: coverage measurement information, measurement reports, mobility-related reports (such as radio link failure reports, successful handover reports, or other reports), connection failure reports, random access reports, etc.

[0103] Optionally, the first message may also include third indication information, which may be Cell CCO configuration information and / or SSB CCO configuration information of a neighboring cell. The second network node may better determine the Cell CCO configuration information and / or SSB CCO configuration information of the cell it manages based on the third indication information.

[0104] It should be understood that the Cell CCO configuration information, SSB CCO configuration information, priority information, gain information, first indication information, second indication information, and third indication information mentioned above can be sent in the same message. For example, the first message can also be included in different messages and sent by the first network node to the second network node. This application embodiment does not limit this.

[0105] For example, the Cell CCO configuration information includes at least one of the information elements shown in Table 1 below:

[0106] Table 1:

[0107]

[0108] For example, the SSB CCO configuration information includes at least one of the information elements shown in Table 2 below:

[0109] Table 2:

[0110]

[0111]

[0112] When the first network node sends one or more sets of SSB CCO configuration information to the second network node, it can also indicate the cell information corresponding to the one or more sets of SSB CCO configuration information. The cell information may include at least one of the following: cell global identifier (CGI), physical cell identifier (PCI), frequency point, cell identifier (cell ID), non-public network identifier (NPN ID), non-terrestrial network identifier (NTN ID), or other cell identifiers. The CGI may include the public land mobile network (PLMN ID) ID and the cell ID. Optionally, the cell information may be information about the cell corresponding to the cell accessed by the terminal device, or it may be information about the first cell among at least one cell information sent by the cell accessed by the terminal device.

[0113] It is understood that if the first network node can send multiple sets of CellCCO configuration information and / or multiple sets of SSB CCO configuration information of one or more cells to the second network node, the first network node can also indicate to the second network node the first index information of the CellCCO configuration information, and / or the second index information of the SSB CCO configuration information, or at least one set of Cell CCO configuration information and / or at least one set of SSB CCO configuration information of at least one cell.

[0114] As an example, the first message sent by the first network node to the second network node may include at least one of the information shown in Table 3 below:

[0115] Table 3:

[0116]

[0117] It is understood that at least one of the information shown in Table 3 above can also be sent to the second network node via other messages instead of the first message.

[0118] As one implementation, a set of Cell CCO configuration information can correspond to at least one set of SSB CCO configuration information. Correspondingly, the first network node can 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 convenience) through the first message or separately.

[0119] S420, the second network node sends a second message to the first network node, the second message including second configuration information determined by the second network node based on the first message.

[0120] For example, the second configuration information includes the first set of Cell CCO configuration information and / or the first set of SSB CCO configuration information determined by the second network node. In step S410, the one or more sets of SSB CCO configuration information determined by the first network node include the first set of SSB CCO configuration information, and the one or more sets of Cell CCO configuration information determined by the first network node include the first set of Cell CCO configuration information. Alternatively, the second configuration information includes: the identification information of the first set of Cell CCO configuration information, and / or the identification information corresponding to the first set of SSB CCO configuration information. The one or more sets of beam SSB CCO configuration information determined by the first network node include the first set of Cell CCO configuration information, and the one or more sets of Cell CCO configuration information determined by the first network node include the first set of Cell CCO configuration information.

[0121] 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 set of Cell CCO configuration information and / or at least one set of SSBCCO configuration information for at least one cell. The index information may be at least one of the first index information, second index information, third index information, or fourth index information described in step S410. The CCO configuration information corresponding to the index information is provided by the first network node, sent by the first network node to the second network node, and selected and determined by the second network node.

[0122] Optionally, if the first network node does not send the aforementioned index information to the second network node, the second network node can determine the corresponding index information based on the order of the received CCO configuration information within at least one set of CCO configuration information. For example, if the first network node sends three sets of Cell CCO configuration information, and the second network node determines that the last set of Cell CCO configuration information is the second configuration information, the second network node can indicate to the first network node that the index information is 3 (e.g., the default index information for Cell CCO configuration information is 1, 2, 3) or 2 (e.g., the default index information for Cell CCO configuration information is 0, 1, 2) or other index information corresponding to a predefined index calculation method. The aforementioned CCO configuration information includes at least one set of Cell CCO configuration information and / or at least one set of SSB CCO configuration information.

[0123] Optionally, the second configuration information may further include a second set of Cell CCO configuration information and / or a second set of SSB CCO configuration information, wherein the second set of Cell CCO configuration information and / or the second set of SSB CCO configuration information is determined by the second network node; or, the second configuration information includes identification information corresponding to the second set of Cell CCO configuration information and / or the second set of SSB CCO configuration information, wherein the second set of Cell CCO configuration information and / or the second set of SSB CCO configuration information is determined by the second network node.

[0124] For example, if the second network node receives at least one set of Cell CCO configuration information and / or at least one set of SSB CCO configuration information for cell 1 from the first network node, the second network node may reject all Cell CCO configurations and SSB CCO configurations sent by the first network node. The second network node determines one set of Cell CCO configuration information and / or one set of SSB CCO configuration information for cell 1 and uses it as the second configuration information. Alternatively, if the second network node receives at least one set of Cell CCO configuration information from the first network node, the second network node can determine one set of Cell CCO configurations based on the at least one set of Cell CCO configuration information, and determine at least one set of SSB CCO configuration information corresponding to this set of Cell CCO configurations. The second network node uses the aforementioned set of Cell CCO configuration information and / or the determined set of SSB CCO configuration information as the second configuration information. For example, if the second network node receives Cell CCO configuration information 1-1 and Cell CCO configuration information 1-2 for cell 1, and Cell CCO configuration information 2-1 and Cell CCO configuration information 2-2 for cell 2, from the first network node, the second configuration information sent by the second network node may include the received Cell CCO configuration information 1-1 for cell 1 and the determined Cell CCO configuration information for cell 2. As a possible example:

[0125] The first configuration information sent by the first network node to the second network node can be as shown in Table 4 below:

[0126] Table 4:

[0127]

[0128] The second configuration information sent by the second network node to the first network node can be as shown in Table 5 below:

[0129] Table 5:

[0130] Cell info Cell 1 >>Coverage Modification Index 1-1 Recommended coverage modification Suggested overwrite modification information Cell info Cell 2 >>Cell CCO Configuration Information

[0131] Optionally, before step S420, the first network node may receive a fourth indication message sent by the second network node, which is used to indicate the cell coverage status range information and / or SSB coverage status range information that the second network node can support.

[0132] In one implementation, alternatively, step S420 includes: the second network node sending a rejection message or a failure message to the first network node. Optionally, the rejection message or failure message may carry a reason for rejection or failure. The specific reason may be insufficient resources or inability to support the CCO configuration information in the first message.

[0133] The method described in this application enables a 5G wireless access network system where, when some functions of a base station are separated into two network nodes, such as CU and DU, the CU and DU can collaborate to achieve capacity coverage optimization.

[0134] It is understood that in the communication method of this application embodiment, the first configuration information may include one or more sets of Cell CCO configuration information and / or one or more sets of SSB CCO configuration information for one or more cells. This application embodiment describes the first configuration information as including the aforementioned partial configuration information, and can be extended to scenarios where the first configuration information includes one or more sets of Cell CCO configuration information and / or one or more sets of SSB CCO configuration information for one or more cells.

[0135] refer to Figure 3 and Figure 4 The technical solution shown is... Figure 5 A schematic flowchart of a communication method 500 according to an embodiment of this application is shown. Figure 5 The communication method shown involves a first network node, a second network node, and a third network node, wherein the first network node can be the one described in this application. Figure 1 or Figure 2 The CU or CU-CP described in the corresponding embodiments can be the second network node of this application. Figure 1 or Figure 2 In the corresponding embodiments, the DU or CU-UP described can be an operation administration and maintenance (OAM) entity. The method 500 includes, but is not limited to, the following steps:

[0136] S510, the first network node identifies the CCO problem.

[0137] The first network node can identify CCO issues based on messages from terminal devices or other network devices. These messages can be at least one of the following: coverage measurement information, measurement reports, mobility-related reports (such as radio link failure reports, successful handover reports, or other reports), connection failure reports, random access reports, etc. The other network devices can be OAM or base stations of other cells.

[0138] It should be understood that the first network node can identify not only CCO problems, but also load problems, and this application is not limited to this.

[0139] It should be understood that the message can be any message that helps the first network node identify CCO problems, such as performance measurement reports, beam and multi-antenna related information, etc., and this application is not limited to this.

[0140] Optionally, S510, before the first network node identifies the CCO problem, the method 500 may further include the following steps:

[0141] In optional step S501, the first network node receives a third message sent from the third network node, the third message being used to indicate radio resource configuration information.

[0142] For example, the third message may include at least one of the following: initial cell coverage status, initial SSB coverage status, coverage status range, SSB coverage status range, mapping relationship between SSB CCO configuration information and cell coverage status, mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or mapping relationship between SSB radio resource configuration and SSB cell coverage status. The first network node can determine Cell CCO configuration and / or SSB CCO configuration information based on the third message.

[0143] In optional step S502, the second network node receives a fourth message from the third network node. The third network node may be an Operations and Management Entity (OAM). This fourth message indicates radio resource configuration information.

[0144] For example, the fourth message may include at least one of the following: initial cell coverage status, initial SSB coverage status, coverage status range, SSB coverage status range, mapping relationship between SSB CCO configuration information and cell coverage status, mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or mapping relationship between SSB radio resource configuration and SSB cell coverage status. The second network node can determine Cell CCO configuration and / or SSB CCO configuration information based on the fourth message.

[0145] 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.

[0146] S520, the first network node sends a first message to the second network node, the first message containing first configuration information, the first configuration information may include one or more sets of SSB CCO configuration information determined by the first network node.

[0147] Optionally, the first configuration information may also include one or more sets of Cell CCO configuration information determined by the first network node.

[0148] Optionally, the correspondence between Cell CCO configuration information and SSB CCO configuration information can be one-to-one, one-to-many, many-to-one, or many-to-many. This application embodiment does not limit this.

[0149] Optionally, the first message may further include at least one of priority information, gain information, first indication information, second indication information, and third indication information. A detailed description of the relevant information can be found in step S410 of the embodiments of this application.

[0150] 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, and the second indication information may be included in the same message, such as the first message, or may be included in different messages sent by the first network node to the second network node. This application is not limited to this.

[0151] Understandably, if the first network node sends multiple sets of Cell CCO configuration information and / or multiple sets of SSB CCO configuration information to the second network node, the first network node may indicate the first index information, and / or the second index information, and / or the third index information to the second network node.

[0152] Optionally, before step S520, the first network node may receive a fourth indication message sent by the second network node, which is used to indicate the cell coverage status range information and / or SSB coverage status range information that the second network node can support.

[0153] S530, the second network node determines the second configuration information based on the first message sent by the first network node.

[0154] For example, the second configuration information includes the first set of Cell CCO configuration information and / or the first set of SSB CCO configuration information. In step S520, the first network node determines one or more sets of beam SSB CCO configuration information, which includes the first set of SSB CCO configuration information. The first network node determines one or more sets of Cell CCO configuration information, which includes the first set of SSB CCO configuration information.

[0155] Optionally, the second configuration information includes 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. In step S520, the first network node determines one or more groups of SSB CCO configuration information, which includes the first group of SSB CCO configuration information. The first network node determines one or more groups of Cell CCO configuration information, which includes the first group of SSB CCO configuration information.

[0156] Optionally, if the first network node does not send the aforementioned index information to the second network node, the second network node can determine its corresponding index information based on the order of the received Cell CCO configuration information in at least one set of Cell CCO configuration information, and / or, the second network node can determine its corresponding index information based on the order of the received SSB CCO configuration information in at least one set of SSB CCO configuration information. For example, if the first network node sends 3 sets of Cell CCO configuration information, and the second network node determines that the last set of Cell CCO configuration information is the second configuration information, the second network node can indicate to the first network node that the index information is 3. Alternatively, the second network node can determine the corresponding index information based on other index calculation methods predefined in the protocol.

[0157] Optionally, the second configuration information may further include a second set of Cell CCO configuration information and / or a second set of SSB CCO configuration information, wherein the second set of Cell CCO configuration information and / or the second set of SSB CCO configuration information is determined by the second network node; or, the second configuration information includes identification information corresponding to the second set of Cell CCO configuration information and / or the second set of SSB CCO configuration information, wherein the second set of Cell CCO configuration information and / or the second set of SSB CCO configuration information is determined by the second network node.

[0158] For example, if the second network node receives one or more sets of SSB CCO configuration information from the first network node, the second network node can reject all SSB CCO configurations sent by the first network node. The second network node determines one set of SSB CCO configuration information based on the first message and uses it as the second configuration information. This second configuration information is included in the second message and sent by the second network node to the first network node. For instance, based on the report information and / or first indication information sent by the first network node, the second network node further identifies CCO problems, thereby making a decision different from the SSB CCO configuration and / or Cell CCO configuration sent by the first network node.

[0159] S540, the first network node receives a second message sent from the second network node. The second message includes the second configuration information.

[0160] Optionally, after receiving the second message from the second network node, the first network node sends the Cell CCO configuration information and / or SSB CCO configuration information in the second message to the network nodes of neighboring cells, so that the cells can determine the configurations they need to adjust.

[0161] The method described in this application enables a 5G wireless access network system where, when a portion of the base station's functions are separated into two network nodes, such as CU and DU, the CU and DU can collaborate to achieve capacity coverage optimization.

[0162] See Figure 3 and Figure 4 The technical solution shown is... Figure 6 A schematic flowchart of a communication method 600 according to an embodiment of this application is shown. Figure 6 The communication method shown involves a first network node, a second network node, and a third network node, wherein the first network node can be the one described in this application. Figure 1 or Figure 2 The CU or CU-CP described in the corresponding embodiments can be the second network node of this application. Figure 1 or Figure 2 In the corresponding embodiments described as DU, or CU-UP, the third network node can be OAM. The method 600 includes, but is not limited to, the following steps:

[0163] S610, the first network node identifies the CCO problem.

[0164] The first network node can identify CCO issues based on messages from terminal devices or other network devices. These messages can be at least one of the following: coverage measurement information, measurement reports, mobility-related reports (such as radio link failure reports, successful handover reports, or other reports), connection failure reports, random access reports, or other reports.

[0165] It should be understood that the first network node can identify not only CCO problems, but also other problems such as load problems, and this application is not limited to this.

[0166] It should be understood that the message can be any message that helps the first network node identify CCO problems, such as performance measurement reports, beam and multi-antenna related information, etc., and this application is not limited thereto.

[0167] Optionally, S610, before the first network node identifies the CCO problem, the method 600 further includes:

[0168] In optional step S601, the first network node receives a third message sent from the third network node. This 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.

[0169] For example, the third message may include at least one of the following: initial cell coverage status, initial SSB coverage status, coverage status range, SSB coverage status range, mapping relationship between SSB CCO configuration information and cell coverage status, mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or mapping relationship between SSB radio resource configuration and SSB cell coverage status. The first network node can determine Cell CCO configuration and / or SSB CCO configuration information based on the third message.

[0170] In optional step S602, the second network node receives a fourth message from the third network node. The third network node may be an Operations and Management Entity (OAM). The fourth message indicates radio resource configuration information. The second and third network nodes include at least one of the following: radio link control protocol layer, media access control layer, and physical layer.

[0171] For example, the fourth message may include at least one of the following: initial cell coverage status, initial SSB coverage status, coverage status range, SSB coverage status range, mapping relationship between SSB CCO configuration information and cell coverage status, mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or mapping relationship between SSB radio resource configuration and SSB cell coverage status. The second network node can determine Cell CCO configuration and / or SSB CCO configuration information based on the fourth message.

[0172] 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.

[0173] S620, the first network node sends a first message to the second network node. This first message contains first configuration information. This first configuration information is the Cell CCO configuration information determined by the first network node.

[0174] Optionally, the first message may further include at least one of a first instruction message, a second instruction message, and a third instruction message. A detailed description of the relevant information can be found in step S410 of the embodiments of this application.

[0175] It should be understood that the Cell CCO configuration information, the first indication information, the second indication information, and the third indication information may be included in the same message, such as the first message, or may be included in different messages sent by the first network node to the second network node. This application is not limited to this.

[0176] Optionally, before step S620, the second network node may send a third indication message to the first network node, which is used to indicate the cell coverage status range information that the second network node can support.

[0177] S630, the second network node determines the second configuration information based on the first message sent by the first network node.

[0178] For example, after receiving a first message from a first network node, the second network node determines second configuration information based on the first message. This second configuration information includes a set of SSB CCO configuration information, which is determined by the second network node. For instance, if the second network node receives a first message from the first network node, and this first message includes at least one of Cell CCO configuration information and first indication information, the second network node determines a set of SSB CCO configuration information based on the first message and uses it as the second configuration information.

[0179] S640, the first network node receives a second message sent from the second network node. The second message includes the second configuration information.

[0180] For example, the second network node sends a determined set of SSB CCO configuration information to the first network node.

[0181] Optionally, the second message includes cell coverage information corresponding to the set of SSB CCO configuration information.

[0182] It should be understood that the cell coverage information can be included in the second message and sent to the first network node together with the second configuration information, or it can be sent to the first network node separately through other messages.

[0183] Optionally, after receiving the second message from the second network node, the first network node sends the second configuration information in the second message to the network nodes of the neighboring cells, so that the cells can determine the configurations they need to adjust.

[0184] The method described in this application enables a 5G wireless access network system where, when a portion of the base station's functions are separated into two network nodes, such as CU and DU, the CU and DU can collaborate to achieve capacity coverage optimization.

[0185] See Figure 3 and Figure 4 The technical solution shown is... Figure 7 A schematic flowchart of a communication method 700 according to an embodiment of this application is shown. Figure 7 The communication method shown involves a first network node, a second network node, and a third network node, wherein the first network node can be the one described in this application. Figure 1 or Figure 2 The CU or CU-CP described in the corresponding embodiments can be the second network node of this application. Figure 1 or Figure 2 In the corresponding embodiments, the DU or CU-UP described herein can be an OAM entity. The method 700 includes, but is not limited to, the following steps:

[0186] The first network node can identify CCO issues based on messages from terminal devices or other network devices. These messages can be at least one of the following: coverage measurement information, measurement reports, mobility-related reports (such as radio link failure reports, successful handover reports, or other reports), connection failure reports, random access reports, etc.

[0187] It should be understood that the first network node can identify not only CCO problems, but also other problems such as load problems, and this application is not limited to this.

[0188] It should be understood that the message can be any message that helps the first network node identify CCO problems, such as performance measurement reports, beam and multi-antenna related information, etc., and this application is not limited thereto.

[0189] Optionally, S710, before the first network node identifies the CCO problem, the method 700 further includes:

[0190] In optional step S701, the first network node receives a third message from a third network node. The third network node may be an Operations and Management Entity (OAM). The third message is used to indicate 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.

[0191] For example, the third message may include at least one of the following: initial cell coverage status, initial SSB coverage status, coverage status range, SSB coverage status range, mapping relationship between SSB CCO configuration information and cell coverage status, mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or mapping relationship between SSB radio resource configuration and SSB cell coverage status. The first network node can determine Cell CCO configuration and / or SSB CCO configuration information based on the third message.

[0192] In optional step S702, the second network node receives a fourth message from the third network node, the fourth message indicating radio resource configuration information. The second and third network nodes include at least one of the following: radio link control protocol layer, media access control layer, and physical layer.

[0193] For example, the fourth message may include at least one of the following: initial cell coverage status, initial SSB coverage status, coverage status range, SSB coverage status range, mapping relationship between SSB CCO configuration information and cell coverage status, mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or mapping relationship between SSB radio resource configuration and SSB cell coverage status. The second network node can determine Cell CCO configuration and / or SSB CCO configuration information based on the fourth message.

[0194] Optionally, the second network node is managed by the first network node.

[0195] Optionally, the first network node and the second network node belong to the same base station.

[0196] S720, the first network node sends the first message to the second network node.

[0197] The first message may include first indication information, which indicates information about network capacity coverage issues. The description of this first indication information is the same as that in step S410, and will not be repeated here.

[0198] Optionally, the first message may also include second indication information, which is used to indicate information identifying network capacity coverage issues. For example, the second indication information may include at least one of the following report information: coverage measurement information, measurement reports, mobility-related reports (such as radio link failure reports, successful handover reports, or other reports), connection failure reports, random access reports, etc.

[0199] Optionally, the first message may also include third instruction information, and the specific description of the relevant information can be found in the description of step S410 in the embodiments of this application.

[0200] S730, the second network node determines the configuration information for network capacity coverage optimization based on the first message sent by the first network node.

[0201] For example, after receiving the first indication information and / or the second indication information and / or the third indication information sent by the first network node, the second network node will determine the SSB CCO configuration information and the Cell CCO configuration information based on this information.

[0202] S740, the first network node receives a second message sent from the second network node. This second message includes SSB CCO configuration information and Cell CCO configuration information.

[0203] It should be understood that the Cell CCO configuration information can be included in a second message and sent to the first network node, or it can be sent to the first network node separately through other messages.

[0204] Optionally, after receiving the second message from the second network node, the first network node sends the SSB CCO configuration information and Cell CCO configuration information, or the Cell CCO configuration information, from the second message to the network nodes of the neighboring cells, so that the cells can determine the configurations they need to adjust.

[0205] The method described in this application enables a 5G wireless access network system where, when a portion of the base station's functions are separated into two network nodes, such as CU and DU, the CU and DU can collaborate to achieve capacity coverage optimization.

[0206] See Figure 3 and Figure 4 The technical solution shown is... Figure 8A schematic flowchart of a communication method 800 according to an embodiment of this application is shown. Figure 8 The communication method shown involves a first network node, a second network node, and a third network node, wherein the first network node can be the one described in this application. Figure 1 or Figure 2 The CU or CU-CP described in the corresponding embodiments can be the second network node of this application. Figure 1 or Figure 2 In the corresponding embodiments, the DU or CU-UP described herein can be an OAM entity. The method 800 includes, but is not limited to, the following steps:

[0207] The first network node can identify CCO issues based on messages from terminal devices or other network devices. These messages can be at least one of the following: coverage measurement information, measurement reports, mobility-related reports (such as radio link failure reports, successful handover reports, or other reports), connection failure reports, random access reports, etc.

[0208] It should be understood that the first network node can identify not only CCO problems, but also other problems such as load problems, and this application is not limited to this.

[0209] It should be understood that the message can be any message that helps the first network node identify CCO problems, such as performance measurement reports, beam and multi-antenna related information, etc., and this application is not limited thereto.

[0210] Optionally, S810, before the first network node identifies the CCO problem, the method 800 further includes:

[0211] In optional step S801, the first network node receives a third message from a third network node. The third network node may be an Operations and Management Entity (OAM). The third message is used to indicate 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.

[0212] For example, the third message may include at least one of the following: initial cell coverage status, initial SSB coverage status, coverage status range, SSB coverage status range, mapping relationship between SSB CCO configuration information and cell coverage status, mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or mapping relationship between SSB radio resource configuration and SSB cell coverage status. The first network node can determine Cell CCO configuration and / or SSB CCO configuration information based on the third message.

[0213] In optional step S802, the second network node receives a fourth message from the third network node. The third network node may be an Operations and Management Entity (OAM). The fourth message is used to indicate radio resource configuration information. The second and third network nodes include at least one of the following: radio link control protocol layer, media access control layer, and physical layer.

[0214] For example, the fourth message may include at least one of the following: initial cell coverage status, initial SSB coverage status, coverage status range, SSB coverage status range, mapping relationship between SSB CCO configuration information and cell coverage status, mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or mapping relationship between SSB radio resource configuration and SSB cell coverage status. The second network node can determine Cell CCO configuration and / or SSB CCO configuration information based on the fourth message.

[0215] 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.

[0216] S820, the first network node sends the first message to the second network node.

[0217] The first message includes a first indication message, which is used to indicate information about network capacity coverage issues.

[0218] The description of the first instruction information can be found in step S410, and will not be repeated here.

[0219] Optionally, the first message may also include second indication information, which is used to indicate information identifying network capacity coverage issues. For example, the second indication information may include at least one of the following: coverage measurement information, measurement reports, mobility-related reports (such as radio link failure reports, successful handover reports, or other reports), connection failure reports, random access reports, and other reporting information.

[0220] Optionally, the first message may also include third instruction information, and the specific description of the relevant information can be found in the description of step S410 in the embodiments of this application.

[0221] S830, the second network node determines the configuration information for network capacity coverage optimization based on the first message sent by the first network node.

[0222] For example, after receiving the first indication information and / or the second indication information and / or the third indication information sent by the first network node, the second network node will determine the SSB CCO configuration information based on this information.

[0223] S840, the first network node receives a second message from the second network node. The second message includes SSB CCO configuration information.

[0224] It should be understood that the cell coverage information can be included in the second message and sent to the first network node, or it can be sent to the first network node separately through other messages.

[0225] S850, the first network node determines the Cell CCO configuration information based on the second message.

[0226] Optionally, the first network node can receive the mapping relationship between SSB CCO configuration information and Cell CCO configuration information sent by OAM, so that the first network node can determine the corresponding Cell CCO configuration information based on the SSB CCO configuration information sent by the second network node.

[0227] Optionally, after receiving the second message sent by the second network node, the first network node determines the Cell CCO configuration based on the second message. The first network node may send the SSB CCO configuration information in the second message and the determined Cell CCO configuration information, or the determined Cell CCO configuration information, to the network nodes of neighboring cells, so that the cells can determine the configurations they need to adjust.

[0228] The method described in this application enables a 5G wireless access network system where, when a portion of the base station's functions are separated into two network nodes, such as CU and DU, the CU and DU can collaborate to achieve capacity coverage optimization.

[0229] It is understood that, in order to achieve the functions in the above embodiments, the aforementioned first network node and the aforementioned second network node include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily recognize that, based on the units and method steps of the various examples described in conjunction with the embodiments disclosed in this application, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in a hardware-driven or software-driven manner depends on the specific application scenario and design constraints of the technical solution.

[0230] Figure 9 and Figure 10The diagram illustrates the possible communication devices provided in the embodiments of this application. These communication devices can be used to implement the functions of the first network node and the second network node in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of this application, the communication device can be the first network node and the second network node in the above method embodiments, or it can be a module (such as a chip) applied to the first network node and the second network node.

[0231] like Figure 9 As shown, the communication device 900 includes a processing module 910 and a transceiver module 920. The communication device 900 is used to implement the above-mentioned... Figure 4 , Figure 5 , Figure 6 , Figure 7 or Figure 8 The function of the first network node in the corresponding embodiment.

[0232] When the communication device 900 is used to achieve Figure 4 , Figure 5 , Figure 6 , Figure 7 or Figure 8 When illustrating the function of the first network node in the method embodiment shown, for example:

[0233] The processing module 910 is used to determine one or more sets of Cell CCO configuration information and / or one or more sets of SSB CCO configuration information.

[0234] Optionally, the processing module 910 is also used to identify CCO problems.

[0235] The transceiver module 920 is configured to send a first message to a second network node, the first message indicating first configuration information; the transceiver module 920 also receives a second message from the second network node, the second message indicating 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.

[0236] Optionally, the transceiver module 920 is also used for:

[0237] Send one or more sets of SSB CCO configuration information to the second network node;

[0238] or

[0239] Send one or more sets of Cell CCO configuration information and / or one or more sets of SSB CCO configuration information to the second network node.

[0240] Optionally, the transceiver module 920 is also used for:

[0241] At least one of priority information, gain information, first indication information, second indication information, or third indication information is sent to the second network node. A detailed description of the relevant information can be found in step S410 of the embodiments of this application.

[0242] Optionally, the transceiver module 920 is also used for any one or more of the following:

[0243] Receive the first set of Cell CCO configuration information and / or the first set of SSB CCO configuration information sent by the second network node;

[0244] Receive the index information corresponding to the first set of Cell CCO configuration information sent by the second network node, and / or the index information corresponding to the first set of SSB CCO configuration information;

[0245] Receive the second set of Cell CCO configuration information and / or the second set of SSB CCO configuration information sent by the second network node;

[0246] Receive the identification information corresponding to the second set of Cell CCO configuration information and / or the identification information or index information corresponding to the second set of SSB CCO configuration information sent by the second network node.

[0247] For a detailed description of the relevant information of the first group and the second group, please refer to the description in step S420 of the embodiment of this application.

[0248] Optionally, the transceiver module 920 is also used for:

[0249] Receive radio resource configuration information sent 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.

[0250] like Figure 10 As shown, the communication device 1000 includes a processing module 1010 and a transceiver module 1020. The communication device 1000 is used to implement the above-mentioned... Figure 4 , Figure 5 , Figure 6 , Figure 7 or Figure 8 The function of the second network node in the corresponding embodiment.

[0251] When the communication device 1000 is used to implement Figure 4 , Figure 5 , Figure 6 , Figure 7 or Figure 8 When illustrating the function of the second network node in the method embodiment shown, for example:

[0252] The transceiver module 1020 is used to receive a first message sent by a first network node, the first message indicating first configuration information; and to send a second message to the first network node, the second message indicating 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.

[0253] Optionally, the transceiver module 1020 is also used for:

[0254] Receive a set of SSB CCO configuration information sent by the first network node;

[0255] or

[0256] Receive one or more sets of Cell CCO configuration information and / or one or more sets of SSBCCO configuration information sent by the first network node.

[0257] Optionally, the transceiver module 1020 is also used for:

[0258] The system receives at least one of priority information, gain information, first indication information, second indication information, or third indication information sent by the first network node. A detailed description of the relevant information can be found in step S410 of the embodiments of this application.

[0259] Optionally, the transceiver module 1020 is also used for any one or more of the following:

[0260] Send the first set of Cell CCO configuration information and / or the first set of SSB CCO configuration information to the first network node;

[0261] Send the index information corresponding to the first set of Cell CCO configuration information to the first network node, and / or the index information corresponding to the first set of SSB CCO configuration information;

[0262] Send the second set of Cell CCO configuration information and / or the second set of SSB CCO configuration information to the first network node;

[0263] Send the identification information corresponding to the second set of Cell CCO configuration information and / or the identification information or index information corresponding to the second set of SSB CCO configuration information to the first network node.

[0264] For a detailed description of the relevant information of the first group and the second group, please refer to the description in step S420 of the embodiment of this application.

[0265] Optionally, the transceiver module 1020 is also used for:

[0266] Receive radio resource configuration information sent 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.

[0267] Processing module 1010 is used for any one or more of the following:

[0268] Determine the first set of Cell CCO configuration information and / or the first set of SSB CCO configuration information;

[0269] Determine 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;

[0270] Determine the second set of Cell CCO configuration information and / or the second set of SSB CCO configuration information;

[0271] Determine 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.

[0272] For a detailed description of the relevant information of the first group and the second group, please refer to the description in step S420 of the embodiment of this application.

[0273] like Figure 11 As shown. 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 is understood that the interface circuit 1103 can be a transceiver or an input / output interface.

[0274] Optionally, the communication device 1100 may also include a memory 1102 for storing instructions executed by the processor 1101, or storing input data required by the processor 1101 to execute instructions, or storing data generated after the processor 1101 executes instructions.

[0275] When the communication device 1100 is used to implement Figure 4 , Figure 5 , Figure 6 , Figure 7 or Figure 8 When the first network node is shown to function, the processor 1101 is used to implement the functions of the processing module 910, and the interface circuit 1103 is used to implement the functions of the transceiver module 920.

[0276] When the communication device 1100 is used to implement Figure 4 , Figure 5 , Figure 6 , Figure 7 or Figure 8 When the second network node is shown to function, the processor 1101 is used to implement the functions of the processing module 1010, and the interface circuit 1103 is used to implement the functions of the transceiver module 1020.

[0277] Optionally, the communication device 1100 further includes a bus 1104, through which the processor 1101, the interface circuit 1103, and the memory 1102 can communicate.

[0278] This application also provides a system chip, which includes an input / output interface, at least one processor, at least one memory, and a bus. The at least one memory is used to store instructions, and the at least one processor is used to invoke the instructions in the at least one memory to perform the methods described above.

[0279] In the embodiments of this application, it should be noted that the method embodiments described above can be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above method.

[0280] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0281] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented, in whole or in part, as a computer program product. The computer program product may include one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic disk), an optical medium (e.g., DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)).

[0282] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0283] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0284] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0285] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0286] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0287] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory, random access memory, magnetic disks, or optical disks.

[0288] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, include: The first network node sends a first message to the second network node. The first message includes first indication information, which is used to indicate a network capacity coverage issue. 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 the packet data convergence protocol layer, the service data adaptation protocol layer, and the radio resource control protocol layer; the second network node includes at least one of the radio link control protocol layer, the media access control layer, and the physical layer. The second configuration information includes: The second set of Cell Capacity Coverage (Cell CCO) configuration information and the second set of SSB CCO configuration information are determined by the second network node.

2. The communication method according to claim 1, characterized in that, The first message also includes: first configuration information; the first configuration information includes: one or more sets of SSB CCO configuration information determined by the first network node.

3. The communication method according to claim 2, characterized in that, The first configuration information includes: one or more sets of Cell CCO configuration information determined by the first network node.

4. The communication method according to claim 2 or 3, characterized in that, The first message also includes: priority information; The priority information indicates the priority of the one or more sets of SSB CCO configuration information; And / or, The priority information indicates the priority of the one or more sets of Cell CCO configuration information.

5. The communication method according to any one of claims 1-3, characterized in that, The first message also includes: second indication information, which is used to indicate information that identifies network capacity coverage issues.

6. The communication method according to any one of claims 1-3, characterized in that, Before the first network node sends the first message to the second network node, the method further includes: the first network node identifying the network capacity coverage problem.

7. The communication method according to claim 6, characterized in that, Before the first network node identifies the network coverage problem, the method further includes: The first network node receives radio resource configuration information sent by the third network node. The radio resource configuration information includes at least one of the following: initial cell coverage status, initial SSB coverage status, cell coverage status range, SSB coverage status range, mapping relationship between SSB CCO configuration information and cell coverage status, mapping relationship between SSB CCO configuration information and CellCCO configuration information, or mapping relationship between SSB radio resource configuration and SSB cell coverage status.

8. The communication method according to any one of claims 1-3 or 7, characterized in that, The first network node and the second network node belong to the same base station.

9. A communication method, characterized in that, include: The second network node receives a first message sent by the first network node. The first message includes first indication information, which is used to indicate a network capacity coverage issue. The second network node sends a second message to the first network node, the second message including second configuration information determined based on the first message; The first network node includes at least one of the packet data convergence protocol layer, the service data adaptation protocol layer, and the radio resource control protocol layer; the second network node includes at least one of the radio link control protocol layer, the media access control layer, and the physical layer. The second configuration information includes: The second set of Cell Capacity Coverage (Cell CCO) configuration information and the second set of SSB CCO configuration information are determined by the second network node.

10. The communication method according to claim 9, characterized in that, The first message also includes: first configuration information; the first configuration information includes: one or more sets of SSB CCO configuration information determined by the first network node.

11. The communication method according to claim 10, characterized in that, The first configuration information also includes: one or more sets of Cell CCO configuration information determined by the first network.

12. The communication method according to claim 10 or 11, characterized in that, The first message also includes: priority information; The priority information indicates the priority of the one or more sets of SSB CCO configuration information; And / or, The priority information indicates the priority of the one or more sets of Cell CCO configuration information.

13. The communication method according to any one of claims 9-11, characterized in that, The first message also includes: second indication information, which indicates information for identifying network capacity coverage issues.

14. The communication method according to any one of claims 9-11, characterized in that, Before the first network node sends the first message to the second network node, the method further includes: the first network node identifying the network capacity coverage problem.

15. The communication method according to claim 14, characterized in that, Before the first network node identifies the network coverage problem, the method further includes: The first network node or the second network node receives radio resource configuration information sent by the third network node. The radio resource configuration information includes at least one of the following: initial cell coverage status, initial SSB coverage status, cell coverage status range, SSB coverage status range, mapping relationship between SSB CCO configuration information and cell coverage status, mapping relationship between SSB CCO configuration information and Cell CCO configuration information, or mapping relationship between SSB radio resource configuration and SSB cell coverage status.

16. The communication method according to any one of claims 9-11 or 15, characterized in that, The first network node and the second network node belong to the same base station.

17. A communication device applied to a first network node, characterized in that, Includes a module for performing the method according to any one of claims 1-8.

18. A communication device applied to a second network node, characterized in that, Includes a module for performing the method according to any one of claims 9-16.

19. A communication device applied to a first network node, characterized in that, The device includes a processor and an interface circuit, the interface circuit being used to receive signals from other devices outside the device and transmit them to the processor or to send signals from the processor to other devices outside the device, the processor being used to implement the method as described in any one of claims 1-8 via logic circuits or executing code instructions.

20. A communication device applied to a second network node, characterized in that, The device includes a processor and an interface circuit, the interface circuit being used to receive signals from other devices outside the device and transmit them to the processor or to send signals from the processor to other devices outside the device, the processor being used to implement the method as described in any one of claims 9-16 via logic circuits or executing code instructions.

21. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions that, when executed by a communication device, implement the method described in any one of claims 1-8, or the method described in any one of claims 9-16.

22. A computer program product, characterized in that, When the computer program product is executed by a communication device, the method of any one of claims 1-8 is implemented, or the method of any one of claims 9-16 is implemented.

23. A communication system, characterized in that, It includes one or more of the following: a communication device as described in any one of claims 17-20.

Images