Communication method and related apparatus

Abstract

The present application provides a communication method and a related apparatus. In the communication method provided by the present application, a network element responsible for storing and processing a channel map instructs to update channel map information corresponding to a first grid, wherein the channel map information corresponding to the first grid exhibits missing or aging channel characteristics; and when a second grid where a terminal device is located is part or all of the first grid, channel state information in the second grid is measured, and channel map information corresponding to the second grid is updated on the basis of the channel state information, thereby improving the accuracy of the channel map information.

Description

Communication methods and related devices

[0001] This application claims priority to Chinese Patent Application No. 202411584427.0, filed on November 5, 2024, entitled "Communication Method and Related Apparatus", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communications, and more particularly to a communication method and related apparatus. Background Technology

[0003] In wireless communication systems, channel maps can be widely used in scenarios such as channel measurement, sensing and positioning, and air interface transmission. A channel map divides the physical space into a series of grids, each grid representing a specific location or region in the space. The channel map records and stores a series of key channel characteristics corresponding to each grid.

[0004] However, some grids in the channel map may have missing or outdated channel features, resulting in poor service quality when using the channel map. Summary of the Invention

[0005] This application provides a communication method and related apparatus to update channel map information corresponding to some grids with missing or aged channel features, thereby improving the accuracy of channel map information and helping to improve the quality of services performed using channel map information.

[0006] In a first aspect, this application provides a communication method applied to a spectrum management function network element, the method comprising: sending first information, the first information being used to indicate updating channel spectrum information corresponding to a first grid; and updating channel spectrum information corresponding to a second grid based on the first information, the second grid being some or all of the grids in the first grid.

[0007] The channel map management function network element updates the channel map information corresponding to the first grid by instructing the first information. When the second grid is part or all of the first grid, it measures the channel state information in the second grid to update the channel map information corresponding to the second grid, thereby improving the accuracy of the channel map information.

[0008] In some implementations, the channel spectrum information corresponding to the second grid is updated based on the first information, including:

[0009] The terminal receives first channel state information from the terminal device, which is used to indicate the downlink channel state information obtained by the terminal device in the second grid based on the first information; and updates the channel map information corresponding to the second grid based on the first channel state information.

[0010] In some implementations, the channel spectrum information corresponding to the second grid is updated based on the first information, including:

[0011] The system receives second channel state information from the access network device, which is used to indicate the uplink channel state information obtained by the access network device in the second grid based on the first information; and updates the channel map information corresponding to the second grid based on the second channel state information.

[0012] Based on the channel state information obtained from the second grid, the channel map management function network element can update the channel map information of the uplink channel or the channel map information of the downlink channel corresponding to the second grid.

[0013] In some implementations, the channel spectrum information corresponding to the second grid is updated based on the first information, including:

[0014] The system receives second information from a terminal device, which instructs the terminal device to obtain channel map parameters corresponding to the second grid based on the first information; and updates the channel map information corresponding to the second grid based on the second information.

[0015] In some implementations, the method also includes:

[0016] Receive third information from the terminal device, which indicates support for updating the channel map information corresponding to the second grid; send fourth information to the terminal device, which indicates the parameter information of the channel map, and the parameter information is used by the terminal device to update the channel map information of the second grid.

[0017] The channel map management function network element indicates the channel map parameter information to the terminal device through the fourth information, which enables the terminal device to update the channel map parameters corresponding to the second grid based on the parameter information.

[0018] In some implementations, the channel spectrum information corresponding to the second grid is updated based on the first information, including:

[0019] The system receives fifth information from the access network device, which instructs the access network device to obtain the channel map parameters corresponding to the second grid based on the first information; and updates the channel map information corresponding to the second grid based on the fifth information.

[0020] In some implementations, the method also includes:

[0021] Receive third information from the terminal device, which indicates support for updating the channel map information corresponding to the second grid; send sixth information to the access network device, which indicates the parameter information of the channel map, and the parameter information is used by the access network device to update the channel map information of the second grid.

[0022] The channel map management function network element indicates the channel map parameter information to the terminal device through the sixth information, which enables the access network device to update the channel map parameters corresponding to the second grid based on the parameter information.

[0023] In some implementations, the third information includes the position information of the second grid and / or the index information of the second grid.

[0024] Based on the location information and / or index information of the second grid, the network element of the spectrum management function can determine that the second grid in the first grid supports updating the channel spectrum information.

[0025] In some implementations, the first message is sent, including:

[0026] The access network device sends first information to the terminal device, which is used to send a radio resource control (RRC) message, which includes the first information.

[0027] In some implementations, the RRC message includes a spectrum update flag, which is used to indicate the need to update the channel spectrum information.

[0028] In some implementations, the first information includes the position information of the first grid and / or the index information of the first grid.

[0029] Based on the location information and / or index information of the first grid, the region or location of the first grid in space can be quickly determined, which helps to improve the efficiency of updating channel map information.

[0030] Secondly, this application provides a communication method applied to a terminal side, such as a terminal device or a communication module in a terminal device, or a circuit or chip in a terminal device responsible for communication functions. Taking the application of this method to a terminal device as an example, the method includes: receiving first information, the first information being used to indicate updating the channel map information corresponding to a first grid; sending first channel state information to a map management function network element, the first channel state information being used to indicate the downlink channel state information obtained by the terminal device in a second grid based on the first information, the map management function network element supporting the storage and processing of channel map information, the second grid being some or all of the grids in the first grid; or, sending second information to a map management function network element, the second information being used to indicate the channel map parameters corresponding to the second grid obtained by the terminal device based on the first information.

[0031] In some implementations, the method also includes:

[0032] Send a third message to the spectrum management function network element, the third message being used to indicate support for updating the channel spectrum information corresponding to the second grid; receive a fourth message from the spectrum management function network element, the fourth message being used to indicate the parameter information of the channel spectrum, the parameter information being used by the terminal device to update the channel spectrum information of the second grid.

[0033] In some implementations, the third information includes the position information of the second grid and / or the index information of the second grid.

[0034] In some implementations, receiving the first information includes:

[0035] Receive an RRC message from the access network device. The RRC message includes first information.

[0036] In some implementations, the RRC message includes a spectrum update flag, which is used to indicate the need to update the channel spectrum information.

[0037] In some implementations, the first information includes the position information of the first grid and / or the index information of the first grid.

[0038] Secondly, this application provides a communication method applied to the network side, such as an access network device or a component (e.g., a chip, chip system) within the access network device, or it can also be a logic module or software capable of implementing all or part of the functions of the access network device. Taking the application of this method to an access network device as an example, the method includes:

[0039] The network device receives first information from the spectrum management function network element, which indicates the need to update the channel spectrum information corresponding to the first grid. The spectrum management function network element supports storing and processing channel spectrum information. The network device also sends second channel status information to the spectrum management function network element, which indicates the uplink channel status information obtained by the network device in the second grid based on the first information. The second grid is some or all of the grids in the first grid. Alternatively, the network device sends fifth information to the spectrum management function network element, which indicates the channel spectrum parameters corresponding to the second grid obtained by the access network device based on the first information.

[0040] In some implementations, the method also includes:

[0041] The sixth information is received from the spectrum management function network element. The sixth information is used to indicate the parameter information of the channel spectrum. The parameter information is used by the access network equipment to update the channel spectrum information of the second grid.

[0042] Fourthly, this application provides a communication device, including modules or units for implementing the methods of the first aspect and any possible implementation of the first aspect, or including modules for implementing the methods of the second aspect and any possible implementation of the second aspect, or including modules for implementing the methods of the third aspect and any possible implementation of the third aspect. Each module or unit can implement its corresponding function by executing a computer program.

[0043] For example, the communication device in the fourth aspect is a terminal device or a component configured in a terminal device, such as a chip, chip system, processor, etc.; or, the communication device in the fourth aspect is an access network device or a component configured in an access network device, such as a chip, chip system, processor, etc.

[0044] Fifthly, this application provides a communication device, including a processor, which is configured to execute the communication method in the first aspect and any possible implementation of the first aspect, or to execute the communication method in the second aspect and any possible implementation of the second aspect, or to execute the communication method in the third aspect and any possible implementation of the third aspect.

[0045] Optionally, the communication device includes a memory for storing instructions and data. The memory is coupled to a processor, which, when executing the instructions stored in the memory, can implement the methods described in the foregoing aspects.

[0046] Optionally, the communication device includes a communication interface for communicating with other communication devices. For example, the communication interface may be a transceiver, circuit, bus, module, pin, or other type of communication interface.

[0047] For example, the communication device provided in the fifth aspect is a chip or chip system, or it may correspond to a terminal device or access network device.

[0048] In a sixth aspect, this application provides a computer-readable storage medium including a computer program that, when run on a computer, causes the computer to implement the methods of the first to third aspects and any possible implementation of the first to third aspects.

[0049] In a seventh aspect, this application provides a computer program product comprising: a computer program (also referred to as code or instructions) that, when executed, causes a computer to perform the methods of the first and third aspects and any possible implementation thereof.

[0050] The second to seventh aspects of this application correspond to the technical solutions of the first aspect of this application. The beneficial effects achieved by each aspect and the corresponding feasible implementation are similar, and will not be repeated here. Attached Figure Description

[0051] Figure 1 is a schematic diagram of the architecture of the communication system used in the embodiments of this application;

[0052] Figure 2 is a schematic diagram of a sub-region applied in an embodiment of this application;

[0053] Figure 3 is a flowchart illustrating a communication method provided in one embodiment of this application;

[0054] Figure 4 is a flowchart illustrating a communication method provided in one embodiment of this application;

[0055] Figure 5 is a flowchart illustrating a communication method provided in another embodiment of this application;

[0056] Figure 6 is a flowchart illustrating a communication method provided in another embodiment of this application;

[0057] Figure 7 is a flowchart illustrating a communication method provided in another embodiment of this application;

[0058] Figure 8 is a schematic block diagram of a communication device provided in one embodiment of this application;

[0059] Figure 9 is a schematic diagram of the structure of a communication device provided in another embodiment of this application. Detailed Implementation

[0060] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0061] It should be understood that in this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates an "or" relationship between the preceding and following related objects, but does not exclude the possibility of indicating an "and" relationship; the specific meaning can be understood in context. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c; a and b; a and c; b and c; or a and b and c. Here, a, b, and c can be single or multiple.

[0062] In this application, the use of prefixes such as "first" and "second" is merely for the purpose of distinguishing and describing different things belonging to the same category, and does not constrain the order, size, or quantity of things. For example, "first parameter" and "second parameter" are simply different parameters, and there is no temporal or quantitative relationship between them.

[0063] This application will present various aspects, embodiments, or features relating to systems that may include multiple devices, components, modules, etc. It should be understood and appreciated that individual systems may include additional devices, components, modules, etc., and / or may not include all the devices, components, modules, etc. discussed in conjunction with the accompanying drawings. Furthermore, combinations of these approaches are also possible.

[0064] Furthermore, in the embodiments of this application, words such as "exemplarily" and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design scheme described as an "example" in this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of the term "example" is intended to present concepts in a concrete manner. In the embodiments of this application, "of," "corresponding, relevant," and "corresponding" may sometimes be used interchangeably, and it should be noted that their intended meanings are consistent unless their distinction is emphasized.

[0065] Figure 1 is a schematic diagram of the architecture of the communication system applied in the embodiments of this application. Figure 1 shows a schematic diagram of a possible, non-limiting system architecture. As shown in Figure 1, the communication system includes a radio access network (RAN) 100 and a core network (CN) 200. RAN 100 includes at least one RAN node (110a and 110b in Figure 1, collectively referred to as 110) and at least one terminal device (120a-120j in Figure 1, collectively referred to as 120). RAN 100 may also include other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in Figure 1). Terminal device 120 is wirelessly connected to RAN node 110. RAN node 110 is wirelessly or wired connected to core network 200. The core network device in core network 200 and RAN node 110 in RAN 100 can be different physical devices, or they can be the same physical device integrating core network logical functions and radio access network logical functions.

[0066] RAN 100 can be a cellular system related to the 3rd Generation Partnership Project (3GPP), such as 4G, 5G mobile communication systems, or future-oriented evolution systems. RAN 100 can also be an open RAN (O-RAN or ORAN) or a cloud radio access network (CRAN). RAN 100 can also be a communication system that integrates two or more of the above systems.

[0067] RAN node 110, sometimes also referred to as access network equipment, RAN entity, or access node, is part of the communication system used to help terminal devices achieve wireless access. Multiple RAN nodes 110 in the communication system can be of the same type or different types. In some scenarios, the roles of RAN node 110 and terminal device 120 are relative. For example, network element 120i in Figure 1 can be a helicopter or drone, which can be configured as a mobile base station. For terminal devices 120j accessing RAN 100 through network element 120i, network element 120i is a base station; but for base station 110a, network element 120i is a terminal device. RAN node 110 and terminal device 120 are sometimes both referred to as communication devices. For example, network elements 110a and 110b in Figure 1 can be understood as communication devices with base station functions, and network elements 120a-120j can be understood as communication devices with terminal functions.

[0068] In one possible scenario, a RAN node can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next-generation NodeB (gNB), or a base station in a future mobile communication system. A RAN node can be a macro base station (as shown in Figure 1, 110a), a micro base station or indoor station (as shown in Figure 1, 110b), a relay node or donor node, or a radio controller in a CRAN scenario. Optionally, a RAN node can also be a server, wearable device, vehicle, or in-vehicle equipment. For example, the access network equipment in vehicle-to-everything (V2X) technology can be a roadside unit (RSU).

[0069] In another possible scenario, multiple RAN nodes collaborate to assist the terminal in achieving wireless access, with different RAN nodes each implementing some of the base station's functions. For example, RAN nodes can be central units (CUs), distributed units (DUs), CU-control planes (CU-CPs), CU-user planes (CU-UPs), or radio units (RUs). CUs and DUs can be separate entities or included in the same network element, such as a baseband unit (BBU). RUs can be included in radio frequency equipment or radio frequency units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs).

[0070] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called an open-CU (open-CU, O-CU), DU can also be called an open-DU (open-DU, O-DU), CU-CP can also be called an open-CU-CP (open-CU-CP, O-CU-CP), CU-UP can also be called an open-CU-UP (open-CU-UP, O-CU-UP), and RU can also be called an open-RU (open-RU, O-RU). For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0071] Terminal equipment can also be called terminals, user equipment (UE), mobile stations, mobile terminals, etc. Terminal equipment can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, point-of-sale (POS) machines, customer-premises equipment (CPE), light UE, reduced-capability UE (REDCAP UE), industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, etc. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc.

[0072] Base stations and terminals can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can be deployed on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of the base stations and terminals.

[0073] The roles of base stations and terminals can be relative. For example, the helicopter or drone 120i in Figure 1 can be configured as a mobile base station. For terminals 120j that access the wireless access network 100 through 120i, terminal 120i is a base station; however, for base station 110a, 120i is a terminal, meaning that 110a and 120i communicate via a wireless air interface protocol. Of course, 110a and 120i can also communicate via a base station-to-base station interface protocol. In this case, relative to 110a, 120i is also a base station. Therefore, both base stations and terminals can be collectively referred to as communication devices. 110a and 110b in Figure 1 can be called communication devices with base station functions, and 120a-120j in Figure 1 can be called communication devices with terminal functions.

[0074] Communication between base stations and terminals, between base stations, and between terminals can be conducted using licensed spectrum, unlicensed spectrum, or both simultaneously. Communication can be conducted using spectrum below 6 GHz, spectrum above 6 GHz, or both simultaneously. The embodiments of this application do not limit the spectrum resources used for wireless communication.

[0075] In the embodiments of this application, the functions of the base station can be executed by modules (such as chips) within the base station, or by a control subsystem that includes base station functions. This control subsystem, including base station functions, can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities. Similarly, the functions of the terminal can be executed by modules (such as chips or modems) within the terminal, or by a device that includes terminal functions.

[0076] A channel map is a high-level data structure and database concept used in wireless communication systems to efficiently store and manage complex information related to channel characteristics. For example, in the wireless communication system shown in Figure 1, the grid or sub-region in this embodiment is a portion of a cell. A sub-region can be a portion obtained by rasterizing a physical cell, or it can be a portion obtained by logically dividing a logical cell.

[0077] To facilitate understanding, a physical cell is used as an example to further explain the sub-region. Figure 2 is a schematic diagram of a sub-region applied in an embodiment of this application. As shown in Figure 2, a physical cell ABCD can be processed into multiple grids through two-dimensional rasterization (illustrated as 10×6 grids in Figure 2). The area corresponding to one grid is a sub-region of the physical cell ABCD. It is understood that a physical cell can also be processed into three-dimensional rasterization, and this embodiment of the application does not limit this. The number of grids in the physical cell and the area of ​​the sub-region corresponding to the grid can be set according to the actual application (the figure below uses the area of ​​the sub-region corresponding to each grid as an example of an area of ​​5 meters (m) × 5m), and this application does not limit this. For ease of description, the term "grid" will be used uniformly below to describe the sub-regions obtained by rasterizing a physical cell or logical cell.

[0078] For each grid cell, the channel map can record and store a series of key channel features. The information related to these channel features may include at least one of the following: multipath information, channel feature vector space, channel statistical covariance matrix, spatial basis, frequency basis, path loss, and reference signal received power.

[0079] Multipath information, also known as grid-associated scatterer information, describes the location, type, and properties of various scatterers (such as buildings, trees, vehicles, etc.) in the environment surrounding each grid that may affect the propagation of wireless signals. The presence and characteristics of scatterers affect the scattering, reflection, and diffraction of signals, thereby affecting the signal strength and phase.

[0080] The channel eigenvector space refers to the vector space formed by eigenvectors corresponding to specific channel eigenvalues ​​during channel transmission. These eigenvectors describe the transmission characteristics of the channel in different directions and are an important characterization of channel transmission performance.

[0081] The channel statistical covariance matrix is ​​a matrix used to describe the statistical correlation of channel characteristics. It helps to understand the interactions between different paths in the channel and how these interactions affect the overall characteristics of the signal.

[0082] Spatial basis vectors are a set of basis vectors used to describe the transmission characteristics of wireless signals in space. These basis vectors define the transmission direction, intensity, and other characteristics of the signal in the spatial domain. Frequency basis vectors are a set of basis vectors used to describe the characteristics of a signal in the frequency domain. These basis vectors typically correspond to different frequency components of the signal in the frequency domain. Spatial and frequency basis vectors are important tools for signal processing and analysis.

[0083] By storing these complex channel characteristics in each grid as matrices, vectors, or scalars, channel maps provide a powerful tool for the planning, optimization, and performance analysis of wireless communication systems. They are mainly used in scenarios such as channel measurement, sensing and positioning, and air interface transmission.

[0084] Understandably, in the physical or logical space corresponding to the channel map, access network devices or terminal devices measure channel state information on each grid to initialize and construct the channel map. However, during this initialization process, the terminal device may not reach the location or area corresponding to some grids, resulting in the channel map not recording the channel characteristics in those grids. Consequently, the channel map corresponding to those grids is not initialized, meaning the channel map corresponding to those grids is missing.

[0085] In addition, multipath information may change over time (e.g., due to scatterer movement or volume changes). When multipath information changes, but the channel characteristics in the corresponding grids of the channel map remain unchanged, meaning the channel map information corresponding to the grid is not updated with the scatterer information, it's equivalent to the channel map information corresponding to the grid aging over time. Applying channel map information to perform services when the corresponding grid information is missing or aged may result in poor service quality.

[0086] To address the aforementioned technical problems, this application provides a communication method and related apparatus to update channel map information corresponding to partially missing or aged channel features, thereby improving the accuracy of the channel map information and helping to enhance the quality of services performed using the channel map information.

[0087] In this embodiment, the network element that stores and processes the channel map can broadcast an instruction to update the channel map information corresponding to the first grid. The channel map corresponding to the first grid may have missing or aged channel features. When the second grid where the terminal device is located is part or all of the first grid, the channel state information in the second grid is measured, and the channel map information corresponding to the second grid is updated according to the channel state information, thereby improving the accuracy of the channel map information.

[0088] For ease of description, the following embodiments will use the interaction between a terminal device, an access network device, and a network element responsible for storing and processing channel maps as an example. It should be understood that the aforementioned terminal device can be replaced by components configured in the terminal device (such as chips, chip systems, processors, etc.), or by logic modules or software capable of implementing all or part of the functions of the terminal device; similarly, the aforementioned access network device can also be replaced by components configured in the access network device (such as chips, chip systems, processors, etc.), or by logic modules or software capable of implementing all or part of the functions of the access network device.

[0089] Figure 3 is a flowchart illustrating a communication method provided in an embodiment of this application. Exemplarily, this communication method can be applied to the communication system shown in Figure 1. As shown in Figure 3, the method includes the following steps:

[0090] S301, the mapping management function (MMF) network element sends first information to the terminal device. The first information is used to indicate the need to update the channel map information corresponding to the first grid. Accordingly, the terminal device receives the first information from the MMF network element.

[0091] In this context, the MMF network element is a network element used for storing and processing channel maps. This network element can also be named a service unit (SU), and the specific naming method is not limited in this embodiment. For ease of description, this embodiment uses the term MMF network element to describe the network element used for storing and processing channel maps.

[0092] Understandably, the MMF network element, as a network element used for storing and processing channel maps, internally stores channel maps. The MMF network element can traverse the channel features corresponding to each grid in the channel map. During this traversal, the MMF network element can identify grids with missing channel features. Furthermore, when the MMF network element applies channel map information to execute services, the channel features corresponding to some grids may not match the actual application. In this case, the MMF network element can determine that the channel features corresponding to these grids have aged. The MMF network element can identify these grids with missing or aged channel features as the first grid, which includes one or more grids in the physical or logical space.

[0093] In this step, as an example, the MMF network element can send first information to the access network device. The first information is used to indicate the updating of the channel map corresponding to the first grid. After receiving the first information from the MMF network element, the access network device can use it to broadcast a radio resource control (RRC) message, which includes the aforementioned first information. The terminal device receives the first information through the RRC message broadcast by the access network device.

[0094] It should be noted that, when the channel features corresponding to the first grid are missing, "updating the channel map corresponding to the first grid" in this embodiment can be understood as constructing the channel map information corresponding to the first grid from scratch, achieving an "update" from nothing. When the channel features corresponding to the first grid are aging, "updating the channel map information corresponding to the first grid" in this embodiment can be understood as obtaining new channel features in the first grid based on changes in multipath information in the first grid, and using these new channel features to cover the original channel features in the first grid, achieving an "update" from old to new.

[0095] In some implementations, after obtaining the new channel features in the first grid, the existing channel features in the first grid can be combined with the new and existing channel features in the first grid to obtain the common channel features in the first grid, thereby achieving "updating the channel map information corresponding to the first grid".

[0096] S302, the MMF network element updates the channel spectrum information corresponding to the second grid based on the first information, where the second grid is part or all of the grids in the first grid.

[0097] In this context, the location of the terminal device is defined as the second grid. Based on the first information, the terminal device can determine that the second grid is part or all of the first grid. Therefore, the terminal device or access network device can measure channel state information within the second grid. It is understood that if the terminal device is located outside the first grid, the MMF network element will not update the channel map information corresponding to the second grid.

[0098] As one possible implementation, the terminal device or access network device can obtain the channel map parameters corresponding to the second grid based on the channel state information, and report the channel map parameters corresponding to the second grid to the MMF network element. The MMF network element then updates the channel map information corresponding to the second grid based on the channel map parameters corresponding to the second grid.

[0099] In another possible implementation, the terminal device or access network device reports the channel state information in the second grid to the MMF network element. The MMF network element can then update the channel map information corresponding to the second grid based on the channel state information in the second grid.

[0100] In the above implementation, whether the MMF network element updates the channel map information corresponding to the second grid according to the channel map parameters corresponding to the second grid, or the MMF network element updates the channel map information corresponding to the second grid according to the channel state information in the second grid, it can be understood as an exemplary implementation of the MMF network element updating the channel map information corresponding to the second grid based on the first information. The following embodiments will further elaborate on this.

[0101] In this embodiment, the MMF network element updates the channel map information corresponding to the first grid by instructing the first information. When the second grid where the terminal device is located is part or all of the first grid, the channel state information in the second grid is measured to update the channel map information corresponding to the second grid, thereby improving the accuracy of the channel map information.

[0102] It should be noted that the MMF network element defined in this application embodiment can be set on the core network side as a core network element. The MMF network element can also be set as a separate network element connected to the DU. This application embodiment does not limit the setting method of the MMF network element. The following takes the setting of the MMF network element on the core network side as an example to further illustrate the communication method provided in this application embodiment.

[0103] Figure 4 is a flowchart illustrating a communication method provided in an embodiment of this application. Exemplarily, this communication method can be applied to the communication system shown in Figure 1. As shown in Figure 4, the method includes steps S401 to S406.

[0104] S401, the MMF network element sends first information to the access network device, the first information being used to indicate the updating of the channel map information corresponding to the first grid. Correspondingly, the access network device receives the first information from the MMF network element.

[0105] As described above, the MMF network element, as a core network element located on the core network side, when it is determined that the channel features corresponding to the first grid are missing or aging, instructs the access network equipment to update the channel map information corresponding to the first grid through the first information.

[0106] S402, the access network device sends an RRC message to the terminal device, the RRC message including first information. Correspondingly, the terminal device receives the RRC message from the access network device.

[0107] As an example, after receiving the first information, the access network device can send an RRC message via broadcast. The RRC message includes the first information used to indicate the updating of the channel spectrum information corresponding to the first grid.

[0108] In some implementations, the first information may include the location information and / or the index information of the first grid. The channel map divides the physical or logical space into a series of grids, each grid corresponding to a unique index. Within the physical or logical space corresponding to the channel map, the corresponding grid can be determined based on its index. The index information of the first grid indicates the index corresponding to each grid included in the first grid, allowing the determination of the corresponding first grid from the physical or logical space.

[0109] Understandably, when a coordinate system is established for physical space, each grid cell in the physical space can be identified by its position information within the coordinate system. As an example, the position information of the first grid cell can specifically indicate its corresponding latitude, longitude, and altitude. Using this information, the corresponding first grid cell can be determined from the physical space.

[0110] In another example, the position information of the first grid can also be used to indicate the virtual coordinates corresponding to the first grid. These virtual coordinates are used to indicate coordinates that exist in a virtual, non-physical space. The first grid can also be determined through these virtual coordinates.

[0111] As one possible implementation, the RRC message may include a map update flag, which indicates that the channel map needs to be updated. That is, after receiving the RRC message, the terminal device can determine, based on the map update flag in the RRC message, that the channel map corresponding to the first grid indicated by the first information is the channel map to be updated. Optionally, the map update flag may also be associated with the location information and / or index information of the first grid.

[0112] S403, the access network device sends a downlink reference signal to the terminal device. Correspondingly, the terminal device receives the downlink reference signal from the access network device.

[0113] For example, the access network device sends a channel status information reference signal (CSI-RS) to the terminal device, and the terminal device receives the CSI-RS from the access network device.

[0114] S404, The terminal device measures the downlink reference signal and obtains first channel state information. The first channel state information is used to indicate the downlink channel state information obtained by the terminal device in the second grid based on the first information.

[0115] The first grid may include one or more grids. Based on the first information, the terminal device can determine whether its location is within one or more grids included in the first grid. When the terminal device is in the second grid, which is some or all of the grids in the first grid, the terminal device measures the downlink reference signal to obtain the channel state information of the downlink channel. That is, the terminal device can measure and obtain the first channel state information in the second grid.

[0116] S405, the terminal device sends the first channel state information to the MMF network element. Correspondingly, the MMF network element receives the first channel state information from the terminal device.

[0117] As the network element responsible for storing and processing channel maps, the MMF network element sends the first channel state information to the terminal device in this step, so that the MMF network element can subsequently update the channel features corresponding to the grid based on the first channel state information.

[0118] S406, the MMF network element updates the channel map information corresponding to the second grid based on the first channel state information.

[0119] As described above, the first channel state information is used to indicate the channel state information of the downlink channel in the second grid. Based on the first channel state information, the MMF can update the channel features related to the downlink channel corresponding to the second grid, thereby updating the channel map information corresponding to the second grid.

[0120] Referring to the foregoing description, when the channel features corresponding to the first grid are missing, updating the channel map information corresponding to the second grid in this step can achieve an "update" from scratch. When the channel features corresponding to the first grid are aging, updating the channel map information corresponding to the second grid in this step can achieve an "update" from old to new.

[0121] Alternatively, when the channel features corresponding to the first grid are aging, after the MMF network element obtains the new channel features in the second grid, it can also obtain the common partial channel features in the second grid based on the original channel features in the second grid and the above two types of channel features, thereby updating the channel map information corresponding to the second grid.

[0122] It is understood that the embodiment shown in Figure 4 corresponds to the method by which the MMF network element updates the channel map information corresponding to the second grid based on the channel state information in the second grid. The specific method by which the MMF network element updates the channel map information corresponding to the second grid based on the channel map parameters is further described below.

[0123] Figure 5 is a flowchart illustrating a communication method provided in another embodiment of this application. Exemplarily, this communication method can be applied to the communication system shown in Figure 1. As shown in Figure 5, the method includes steps S501 to S507.

[0124] S501, the MMF network element sends first information to the access network device, the first information being used to indicate the updating of the channel map information corresponding to the first grid. Correspondingly, the access network device receives the first information from the MMF network element.

[0125] S502, the access network device sends an RRC message to the terminal device, the RRC message including first information. Correspondingly, the terminal device receives the RRC message from the access network device.

[0126] S503, the access network device sends a downlink reference signal to the terminal device. Correspondingly, the terminal device receives the downlink reference signal from the access network device.

[0127] S504, the terminal device measures the downlink reference signal and obtains first channel state information. The first channel state information is used to indicate the downlink channel state information obtained by the terminal device in the second grid based on the first information.

[0128] The steps S501 to S504 above are the same as S401 to S404 in the steps shown in Figure 4, and will not be repeated here.

[0129] S505, the terminal device obtains the channel map parameters corresponding to the second grid based on the first channel state information.

[0130] As described above, for each grid cell, the channel map can store information related to channel characteristics such as multipath information, channel feature vector space, channel statistical covariance matrix, spatial basis, frequency basis, path loss, and reference signal received power. The above information related to channel characteristics is the specific content stored in each grid cell of the channel map, and each item can be understood as the channel map parameter corresponding to the grid cell.

[0131] In this step, the terminal device can process and obtain the channel map parameters corresponding to the second grid based on the first channel state information. As an example, 3GPP can agree on the channel map parameters through a protocol, and the terminal device can calculate and obtain the channel map parameters corresponding to the second grid based on the channel map parameters indicated by the protocol and the first channel state information.

[0132] In some implementations, the terminal device can also obtain the channel map parameters corresponding to the second grid based on the channel map parameters indicated by the MMF network element. As shown in optional step S505a in Figure 5, the terminal device sends third information to the MMF network element, which indicates support for updating the channel map information corresponding to the second grid. Accordingly, the MMF network element receives the third information from the terminal device.

[0133] It is understandable that the MMF network element determines that the channel features corresponding to the first grid are missing or aging, while the second grid where the terminal device is located is part or all of the grids in the first grid. There may be differences between the channel map parameters corresponding to different grids. Therefore, the terminal device needs to first indicate to the MMF network element through third information that it supports updating the channel map information corresponding to the second grid.

[0134] In some implementations, the third information includes the position information of the second grid and / or the index information of the second grid.

[0135] As shown in optional step S505b of Figure 5, the MMF network element sends fourth information to the terminal device. This fourth information indicates the parameter information of the channel map, which is used by the terminal device to update the channel map of the second grid. Correspondingly, the terminal device receives the fourth information from the MMF network element.

[0136] The channel map parameter information indicated by the fourth information can be understood as the channel map parameters corresponding to the second grid. After receiving the fourth information, the terminal device can obtain the channel map parameters corresponding to the second grid based on the channel map parameter information indicated by the fourth information and the first channel state information.

[0137] S506, the terminal device sends second information to the MMF network element. The second information is used to indicate the channel spectrum parameters corresponding to the second grid obtained by the terminal device based on the first information. Correspondingly, the MMF network element receives the second information from the terminal device.

[0138] In step S505, after the terminal device obtains the channel spectrum parameters corresponding to the second grid, it can indicate the channel spectrum parameters corresponding to the second grid to the MMF network element through the second information.

[0139] S507, the MMF network element updates the channel spectrum information corresponding to the second grid based on the second information.

[0140] It is understandable that the second information is used to indicate the channel map parameters corresponding to the second grid, that is, the second information indicates the channel characteristics related to the downlink channel corresponding to the second grid. The MMF network element can update the channel map corresponding to the second grid based on the second information.

[0141] In the case where the channel features corresponding to the first grid are missing, the channel map information corresponding to the second grid is updated in this step. The channel features related to the downlink channel of the second grid can be directly stored as the channel features of the second grid, thus achieving an "update" from scratch.

[0142] In the case of aging channel features corresponding to the first grid, the MMF network element can replace the original channel features related to the downlink channel corresponding to the second grid with the downlink channel features indicated by the second information above, thus achieving an "update" from old to new.

[0143] Alternatively, when the channel features corresponding to the first grid are aging, after obtaining the second information indicating the channel features related to the downlink channel corresponding to the second grid, the MMF network element can also obtain the common part of the downlink channel-related channel features in the second grid based on the original channel features related to the downlink channel corresponding to the second grid, combined with the above two channel features, to update the channel map information corresponding to the second grid.

[0144] In the embodiments shown in Figures 4 and 5 above, the terminal device measures the downlink reference signal to obtain the channel state information of the downlink channel, thereby updating the downlink channel-related channel features stored in the channel map.

[0145] In some implementations, the access network equipment can also measure the uplink reference signal to obtain the uplink channel state information. The following section further introduces the specific implementation method of updating the uplink channel-related channel features in the channel map based on the uplink channel state information.

[0146] Figure 6 is a flowchart illustrating a communication method provided in another embodiment of this application. Exemplarily, this communication method can be applied to the communication system shown in Figure 1. As shown in Figure 6, the method includes steps S601 to S606.

[0147] S601, the MMF network element sends first information to the access network device, the first information being used to indicate the updating of the channel map information corresponding to the first grid. Correspondingly, the access network device receives the first information from the MMF network element.

[0148] S602, the access network device sends an RRC message to the terminal device, the RRC message including first information. Correspondingly, the terminal device receives the RRC message from the access network device.

[0149] The steps S601 and S602 above are the same as S401 and S402 in the steps shown in Figure 4, and will not be repeated here.

[0150] S603, the terminal device sends an uplink reference signal to the access network device. Correspondingly, the access network device receives the uplink reference signal from the terminal device.

[0151] The first grid may include one or more grids. Based on the first information, the terminal device can determine whether its location is within one or more grids included in the first grid. When the terminal device is in the second grid, which may be some or all of the grids in the first grid, the terminal device actively sends an uplink reference signal to the access network device.

[0152] For example, the terminal device can send a sounding reference signal (SRS) to the access network device, and the access network device receives the SRS from the terminal device.

[0153] S604, the access network device measures the uplink reference signal and obtains the second channel state information. The second channel state information is used to indicate the uplink channel state information obtained by the access network device in the second grid based on the first information.

[0154] In this step, the access network device measures the uplink reference signal sent by the terminal device in the second grid, thereby obtaining the channel state information of the uplink channel in the second grid. In other words, the access network device can measure and obtain the second channel state information in the second grid.

[0155] S605, the access network device sends the second channel status information to the MMF network element. Correspondingly, the MMF network element receives the second channel status information from the access network device.

[0156] As the network element responsible for storing and processing channel maps, the MMF network element sends second channel state information to the MMF network element in this step, so that the MMF network element can subsequently update the channel features corresponding to the grid based on the second channel state information.

[0157] S606, the MMF network element updates the channel map information corresponding to the second grid based on the second channel state information.

[0158] As described above, the second channel state information is used to indicate the channel state information of the uplink channel in the second grid. Based on the second channel state information, the MMF can update the channel features related to the uplink channel corresponding to the second grid, thereby updating the channel map information corresponding to the second grid.

[0159] In this step, the MMF network element updates the channel spectrum information corresponding to the second grid. Depending on whether the channel features corresponding to the first grid are missing or aged, it can achieve "update" from nothing to something, or "update" from old to new. For specific implementation methods, please refer to the aforementioned embodiments, which will not be repeated here.

[0160] The embodiment shown in Figure 6 above corresponds to the method by which the MMF network element updates the channel map information corresponding to the second grid based on the channel state information of the uplink channel in the second grid obtained by the access network device. The following further describes the specific method by which the MMF network element updates the channel map information corresponding to the second grid based on the channel map parameters obtained by the access network device.

[0161] Figure 7 is a flowchart illustrating a communication method provided in another embodiment of this application. Exemplarily, this communication method can be applied to the communication system shown in Figure 1. As shown in Figure 7, the method includes steps S701 to S707.

[0162] S701, the MMF network element sends first information to the access network device, the first information being used to indicate the updating of the channel map corresponding to the first grid. Correspondingly, the access network device receives the first information from the MMF network element.

[0163] S702, the access network device sends an RRC message to the terminal device, the RRC message including first information. Correspondingly, the terminal device receives the RRC message from the access network device.

[0164] S703, the terminal device sends an uplink reference signal to the access network device. Correspondingly, the access network device receives the uplink reference signal from the terminal device.

[0165] S704, the access network device measures the uplink reference signal and obtains the second channel state information. The second channel state information is used to indicate the uplink channel state information obtained by the access network device in the second grid based on the first information.

[0166] The steps S701 to S704 above are the same as S601 to S604 in the steps shown in Figure 6, and will not be repeated here.

[0167] S705, the access network device obtains the channel map parameters corresponding to the second grid based on the second channel state information.

[0168] This step is similar to step S505 in the embodiment shown in Figure 5. As an example, when the channel map parameters are agreed upon in the 3GPP related protocols, the access network device can calculate and obtain the channel map parameters corresponding to the second grid based on the channel map parameters indicated by the protocol and the second channel state information.

[0169] In some implementations, the access network device can also obtain the channel map parameters corresponding to the second grid based on the channel map parameters indicated by the MMF network element. As shown in optional step S705a in Figure 6, the terminal device sends third information to the MMF network element, which indicates support for updating the channel map information corresponding to the second grid. Accordingly, the MMF network element receives the third information from the terminal device.

[0170] In some implementations, the third information includes the position information of the second grid and / or the index information of the second grid.

[0171] As shown in optional step S705b of Figure 6, the MMF network element sends sixth information to the access network device. This sixth information indicates the parameter information of the channel map, which is used by the access network device to update the channel map of the second grid. Correspondingly, the access network device receives the sixth information from the MMF network element.

[0172] The channel map parameter information indicated by the sixth information can be understood as the channel map parameters corresponding to the second grid. After receiving the sixth information, the terminal device can obtain the channel map parameters corresponding to the second grid based on the channel map parameter information indicated by the sixth information and the second channel state information.

[0173] S706, the access network device sends fifth information to the MMF network element. This fifth information indicates the channel spectrum parameters corresponding to the second grid obtained by the access network device based on the first information. Correspondingly, the MMF network element receives the fifth information from the terminal device.

[0174] In step S705, after the access network device obtains the channel map parameters corresponding to the second grid, it can indicate the channel map parameters corresponding to the second grid to the MMF network element through the fifth information.

[0175] S707, the MMF network element updates the channel map information corresponding to the second grid based on the fifth information.

[0176] It is understandable that the fifth information is used to indicate the channel map parameters corresponding to the second grid. In other words, the fifth information indicates the channel characteristics related to the uplink channel corresponding to the second grid. The MMF network element can update the channel map information corresponding to the second grid based on the fifth information.

[0177] In the case where the channel features corresponding to the first grid are missing, the channel map information corresponding to the second grid is updated in this step. The channel features related to the uplink channel of the second grid can be directly stored as the channel features of the second grid, thus achieving an "update" from scratch.

[0178] In the case of aging channel features corresponding to the first grid, the MMF network element can replace the original uplink channel features corresponding to the second grid with the uplink channel features indicated by the fifth information above, thus achieving an "update" from old to new.

[0179] Alternatively, when the channel features corresponding to the first grid are aging, after obtaining the second information indicating the uplink channel-related channel features corresponding to the second grid, the MMF network element can also obtain the common uplink channel-related channel features in the second grid by combining the original uplink channel features corresponding to the second grid with the above two channel features, thereby updating the channel map information corresponding to the second grid.

[0180] Figures 8 and 9 are schematic diagrams of possible communication devices provided in embodiments of this application. These communication devices can be used to implement the functions of terminal devices, access network devices, or MMF network elements 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 terminal device or access network device in the method embodiments shown in Figures 3 to 7, or it can be a component (such as a chip, chip system, processor, etc.) configured in the terminal device or access network device, or it can be a logic module or software capable of implementing some or all of the functions of the terminal device or access network device.

[0181] Figure 8 is a schematic block diagram of a communication device provided in one embodiment of this application. As shown in Figure 8, the communication device 800 includes a processing module 810 and a transceiver module 820.

[0182] The transceiver module 820 can implement corresponding communication functions and can also be referred to as an input / output interface or communication unit. The processing module 810 can be used to perform processing operations. It should be understood that if the device 800 is a component configured in a terminal device, such as a chip, the transceiver module 820 can be an input / output interface.

[0183] Optionally, the transceiver module 820 may include a transmitting module and a receiving module. The transmitting module is used to perform the transmitting operations of the terminal device, access network device, or MMF network element in Figures 3 to 7, and the receiving module is used to perform the receiving operations of the terminal device, access network device, or MMF network element in Figures 3 to 7.

[0184] It should be understood that when the device 800 is a component configured in a terminal device, such as a chip, the transmitting module can be an output interface, and the transmitting operation involved in the embodiments of this application can be performed by the output interface; the receiving module can be an input interface, and the receiving operation involved in the embodiments of this application can be performed by the input interface.

[0185] Optionally, the device 800 may further include a storage module for storing instructions and / or data, and the processing module 810 may read the instructions and / or data from the storage module to enable the device to implement the method embodiments shown in Figures 3 to 7.

[0186] In one possible design, the device 800 can be used to implement the function of the MMF network element in the method embodiments shown in Figures 3 to 7. Alternatively, the device 800 can include a unit for implementing any function or operation of the MMF network element in the method embodiments shown in Figures 3 to 7. This unit can be implemented wholly or partially by software, hardware, firmware, or any combination thereof.

[0187] When device 800 is used to implement the function of MMF network element in the method embodiments shown in Figures 3 to 7, transceiver module 820 (specifically, a transmitting module) can be used to execute step S301 in Figure 3 to send first information, the first information being used to indicate updating the channel spectrum information corresponding to the first grid; processing module 810 can be used to execute step S302 in Figure 3 to update the channel spectrum information corresponding to the second grid based on the first information, the second grid being some or all of the grids in the first grid.

[0188] In another possible design, the device 800 can be used to implement the functions of the terminal device or access network device in the method embodiments shown in Figures 3 to 7. Alternatively, the device 800 can include a unit for implementing any function or operation of the terminal device or access network device in the method embodiments shown in Figures 3 to 7. This unit can be implemented wholly or partially by software, hardware, firmware, or any combination thereof.

[0189] When device 800 is used to implement the functions of the terminal device in the method embodiments shown in Figures 3 to 7, transceiver module 820 (specifically, receiving module) can be used to execute step S402 in Figure 4 to receive an RRC message from the access network device, the RRC message including first information; processing module 810 can be used to execute step S404 in Figure 4 to measure the downlink reference signal and obtain first channel state information, the first channel state information being used to indicate the downlink channel state information obtained by the terminal device in the second grid based on the first information; transceiver module 820 (specifically, sending module) can be used to execute step S405 in Figure 4 to send the first channel state information to the MMF network element.

[0190] A more detailed description of the above-mentioned processing module 810 and transceiver module 820 can be obtained directly from the relevant descriptions in the method embodiments shown in Figures 3 to 7, and will not be repeated here.

[0191] It should be noted that the transceiver module can also be called a transceiver unit, transceiver, transceiver machine, or transceiver device, etc. The processing module can also be called a processor, processing board, processing unit, or processing device, etc. Optionally, the transceiver module is used to perform the sending and receiving operations of the terminal device in the above method. The device in the communication module that implements the receiving function can be considered as the receiving module, and the device in the communication module that implements the sending function can be considered as the sending module; that is, the transceiver module includes both a receiving module and a sending module.

[0192] In another possible design, the aforementioned transceiver module and / or processing module can be implemented using virtual modules. For example, the processing module can be implemented using software functional modules or virtual devices, and the transceiver module can also be implemented using software functional modules or virtual devices. In another possible design, the processing module or transceiver module can also be implemented using physical devices. For example, if the device is implemented using a chip / chip circuit, the transceiver module can be an input / output circuit and / or a communication interface, performing input operations (corresponding to the aforementioned receiving operation) and output operations (corresponding to the aforementioned sending operation); the processing module is an integrated processor, microprocessor, or integrated circuit.

[0193] It should be understood that the module division in the embodiments of this application is illustrative and only represents a logical functional division. In actual implementation, there may be other division methods. Furthermore, the functional modules in the various embodiments of this application can be integrated into a single processor, exist as separate physical entities, or be integrated into a single module. The integrated modules described above can be implemented in hardware or as software functional modules.

[0194] Figure 9 is a schematic diagram of a communication device provided in another embodiment of this application. The device 900 shown in Figure 9 can be used to execute any of the methods described above that are performed by the communication device.

[0195] As shown in Figure 9, the device 900 of this embodiment includes a memory 901, a processor 902, a communication interface 903, and a bus 904. The memory 901, processor 902, and communication interface 903 are interconnected via the bus 904.

[0196] The memory 901 can be a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory 901 can store programs, and when the program stored in the memory 901 is executed by the processor 902, the processor 902 performs any of the aforementioned methods.

[0197] The processor 902 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for executing relevant programs.

[0198] The processor 902 can also be an integrated circuit chip with signal processing capabilities. In implementation, the various related steps in the embodiments of this application can be completed through the integrated logic circuitry in the processor 902 or through software instructions.

[0199] The processor 902 described above can also 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.

[0200] The steps of the method disclosed in the embodiments of this application can be directly manifested as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can reside 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. This storage medium is located in memory 901, and processor 902 reads the information in memory 901 and, in conjunction with its hardware, completes the functions required by the units included in the device of this application.

[0201] The communication interface 903 can use, but is not limited to, transceivers to enable communication between the device 900 and other devices or apparatuses.

[0202] Bus 904 may include a pathway for transmitting information between various components of device 900 (e.g., memory 901, processor 902, communication interface 903).

[0203] This application also provides a computer-readable storage medium storing computer instructions, which, when executed by a processor, implement the steps of the methods described above.

[0204] This application also provides a computer program product, including computer instructions that, when executed by a processor, implement the various steps in the methods described above.

[0205] It should be noted that the modules or components shown in the above embodiments can be one or more integrated circuits configured to implement the above methods, such as one or more application-specific integrated circuits (ASICs), one or more microprocessors, or one or more field-programmable gate arrays (FPGAs). Furthermore, when a module is implemented by a processing element calling program code, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor capable of calling program code, such as a controller. Additionally, these modules can be integrated together and implemented as a System-on-a-Chip (SoC).

[0206] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, software modules, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions can 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 can 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 can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0207] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and intent of this application are indicated by the following claims.

[0208] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A communication method characterized by comprising: The method includes: Send a first message, which is used to instruct the updating of the channel map information corresponding to the first grid. The channel spectrum information corresponding to the second grid is updated based on the first information, wherein the second grid is some or all of the grids in the first grid.

2. The method of claim 1, wherein, The step of updating the channel map information corresponding to the second grid based on the first information includes: Receive first channel state information from the terminal device, the first channel state information being used to indicate downlink channel state information obtained by the terminal device in the second grid based on the first information; Based on the first channel state information, update the channel map information corresponding to the second grid.

3. The method of claim 1, wherein, The step of updating the channel map information corresponding to the second grid based on the first information includes: Receive second channel state information from the access network device, the second channel state information being used to indicate the uplink channel state information obtained by the access network device in the second grid based on the first information; Based on the second channel state information, update the channel map information corresponding to the second grid.

4. The method of claim 1, wherein, The step of updating the channel map information corresponding to the second grid based on the first information includes: Receive second information from the terminal device, the second information being used to indicate the channel map parameters corresponding to the second grid obtained by the terminal device based on the first information; Based on the second information, update the channel map information corresponding to the second grid.

5. The method of claim 4, wherein, The method further includes: Receive third information from the terminal device, the third information being used to indicate support for updating the channel map information corresponding to the second grid; A fourth message is sent to the terminal device, the fourth message being used to indicate the parameter information of the channel map, the parameter information being used by the terminal device to update the channel map information of the second grid.

6. The method according to claim 1, characterized in that, The step of updating the channel map information corresponding to the second grid based on the first information includes: Receive fifth information from the access network device, the fifth information being used to indicate the channel map parameters corresponding to the second grid obtained by the access network device based on the first information; Based on the fifth piece of information, update the channel map information corresponding to the second grid.

7. The method according to claim 6, characterized in that, The method further includes: Receive third information from the terminal device, the third information being used to indicate support for updating the channel map information corresponding to the second grid; A sixth message is sent to the access network device. The sixth message is used to indicate the parameter information of the channel map. The parameter information is used by the access network device to update the channel map information of the second grid.

8. The method according to claim 5 or 7, characterized in that, The third information includes the position information of the second grid and / or the index information of the second grid.

9. The method according to any one of claims 1 to 8, characterized in that, The sending of the first information includes: The first information is sent to the access network device, which is used to send a Radio Resource Control (RRC) message to the terminal device, the RRC message including the first information.

10. The method according to claim 9, characterized in that, The RRC message includes a spectrum update flag, which is used to indicate the need to update the channel spectrum information.

11. The method according to claim 9 or 10, characterized in that, The first information includes the position information of the first grid and / or the index information of the first grid.

12. A communication method, characterized in that, The method includes: Receive first information, which is used to instruct the updating of the channel map information corresponding to the first grid; The first channel state information is sent to the spectrum management function network element. This first channel state information is used to instruct the terminal device to obtain downlink channel state information in a second grid based on the first information. The spectrum management function network element supports storing and processing channel spectrum information. The second grid is part or all of the grids in the first grid. Alternatively... The second information is sent to the spectrum management function network element, and the second information is used to instruct the terminal device to obtain the channel spectrum parameters corresponding to the second grid based on the first information.

13. The method according to claim 12, characterized in that, The method further includes: Send a third message to the spectrum management function network element, the third message being used to indicate support for updating the channel spectrum information corresponding to the second grid; The terminal device receives fourth information from the spectrum management function network element. The fourth information is used to indicate the parameter information of the channel spectrum. The parameter information is used by the terminal device to update the channel spectrum information of the second grid.

14. The method according to claim 13, characterized in that, The third information includes the position information of the second grid and / or the index information of the second grid.

15. The method according to any one of claims 12 to 14, characterized in that, The receiving of the first information includes: Receive an RRC message from the access network device, the RRC message including the first information.

16. The method according to claim 15, characterized in that, The RRC message includes a spectrum update flag, which is used to indicate the need to update the channel spectrum information.

17. The method according to claim 15 or 16, characterized in that, The first information includes the position information of the first grid and / or the index information of the first grid.

18. A communication method, characterized in that, The method includes: The first information is received from the spectrum management function network element, which is used to indicate the updating of the channel spectrum information corresponding to the first grid. The spectrum management function network element supports storing and processing channel spectrum information. Send second channel state information to the network element responsible for map management. This second channel state information indicates to the network device, based on the first information, the uplink channel state information obtained from a second grid. The second grid is some or all of the grids in the first grid. Alternatively... The fifth information is sent to the spectrum management function network element, and the fifth information is used to instruct the access network device to obtain the channel spectrum parameters corresponding to the second grid based on the first information.

19. The method according to claim 18, characterized in that, The method further includes: The access network device receives sixth information from the spectrum management function network element. The sixth information is used to indicate the parameter information of the channel spectrum. The parameter information is used to update the channel spectrum information of the second grid.

20. A communication device, characterized in that, The communication device includes a module for implementing the communication method as described in any one of claims 1 to 19.

21. A communication device, characterized in that, include: A processor coupled to a memory that stores instructions to be executed by the computer; The processor is configured to execute computer execution instructions stored in the memory, causing the communication device to perform the communication method as described in any one of claims 1 to 19.

22. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the communication method as described in any one of claims 1 to 19.

23. A computer program product, characterized in that, It includes a computer program that, when executed by a processor, implements the communication method as described in any one of claims 1 to 19.

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