Resource configuration method and communication apparatus

Abstract

The present application provides a resource configuration method. The method comprises: a terminal device receives a channel state information (CSI) reporting configuration from a network device, wherein the CSI reporting configuration comprises N fields, the N fields have one-to-one correspondence to N CSI resource configurations, a first field among the N fields is used for indicating a first carrier associated with a first CSI resource configuration among the N CSI resource configurations that corresponds to the first field, the N CSI resource configurations are associated with N carriers, and N is a positive integer greater than 1; the terminal device acquires CSI on the basis of the CSI reporting configuration; and the terminal device sends the CSI to the network device. The terminal device performs channel measurement on the N carriers on the basis of the N fields in the CSI reporting configuration, acquires the CSI, and sends the CSI to the network device, so that the terminal device performs channel measurement on the N carriers, and feeds back in the CSI to the network device measurement results corresponding to the N carriers.

Description

Resource configuration method and communication device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on August 30, 2023, with application number 202311112342.8 and invention name “A method and communication device for resource allocation”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The embodiments of the present application relate to the field of wireless communication technology, and more specifically, to a resource configuration method and a communication device. Background Art

[0003] With the development of communication technology and the emergence of various new services (such as extended reality (XR)), the demand for cell capacity by terminal devices has increased significantly. In order to improve cell capacity, increasing bandwidth has become an effective technical means. In actual application scenarios, increasing bandwidth to improve cell capacity often involves the presence of multiple discrete frequency bands of carriers. In the case of discrete carriers, carrier aggregation (CA) technology is usually used to aggregate multiple discrete carriers for transmission, thereby increasing cell capacity.

[0004] In the CA scenario, when there are multiple frequency duplex division (FDD) bands in the aggregated frequency band, or there are multiple time division duplex (TDD) bands without uplink measurement pilots, the network device usually sends a reference signal (RS) (for example, a channel state information reference signal (CSI-RS)) to the terminal device. The RS is used by the terminal device to perform channel measurement on the downlink channel. The terminal device measures the downlink channel according to the RS and CSI resource configuration, and reports the CSI as the measurement result to the network device. The network device sends downlink data based on the CSI reported by the terminal device.

[0005] Currently, in CA scenarios, frequency bands are aggregated to increase cell capacity. Terminal devices need to measure channels corresponding to multiple carriers to support multi-frequency data transmission. Therefore, how terminal devices perform joint multi-frequency channel measurements is a current research hotspot.

[0006] Summary of the Invention

[0007] The present application provides a resource configuration method and communication device. In a CA scenario, a terminal device can determine N CSI resource configurations based on N fields in the CSI reporting configuration, obtain CSI based on the N CSI resource configurations, and report the CSI to a network device. The CSI corresponds to the N carriers, thereby enabling the terminal device to jointly measure the N carriers.

[0008] In a first aspect, a method for resource configuration is provided. The method may be executed by a terminal device, or may be executed by a component of the terminal device (such as a chip or circuit), without limitation.

[0009] The method includes: a terminal device receives a channel state information (CSI) reporting configuration from a network device, where the CSI reporting configuration includes N fields, the N fields correspond one-to-one to N CSI resource configurations, a first field among the N fields is used to indicate a first carrier associated with a first CSI resource configuration among the N CSI resource configurations corresponding to the first field, the N CSI resource configurations are associated with N carriers, where N is a positive integer greater than 1; the terminal device obtains channel state information (CSI) according to the CSI reporting configuration; and the terminal device sends the CSI to the network device.

[0010] It should be understood that the CSI reporting configuration includes N fields, and the N fields may be N independent fields, or the N fields may be a group of fields, and the group of fields includes N fields.

[0011] It should be understood that the terminal device obtains CSI based on N CSI resource configurations. The CSI is the CSI corresponding to the N carriers. That is, the terminal device performs channel measurement (or joint channel measurement) on the N carriers based on the N CSI resource configurations to obtain CSI.

[0012] According to the method provided in this application, a terminal device receives a CSI reporting configuration, which includes N fields for indicating N CSI resource configurations. This application adds these N fields to the CSI reporting configuration to indicate the N CSI resource configurations associated with N carriers, achieving good compatibility with existing standards. This means that no major changes to the CSI reporting configuration in existing standards are required, and the terminal device can perform joint channel measurement on N carriers simply by adding N fields.

[0013] In combination with the first aspect, in some possible implementation methods, the CSI reporting configuration includes N fields, including: the CSI reporting configuration also includes N CSI reporting sub-configurations, the N CSI reporting sub-configurations include the N fields, and the N fields correspond one-to-one to the N CSI reporting sub-configurations.

[0014] It should be understood that the CSI reporting configuration includes N fields, which can be understood as: the CSI reporting configuration directly includes relevant information of the N fields, or the CSI reporting configuration includes N CSI reporting sub-configurations, the N CSI reporting sub-configurations include N fields, and the N fields correspond one-to-one to the N CSI reporting sub-configurations. Among them, a first CSI reporting sub-configuration in the N CSI reporting sub-configurations includes a first field, and the first field is used to indicate a first carrier corresponding to the first CSI reporting sub-configuration, and the first carrier is associated with the first CSI resource configuration.

[0015] Based on the above technical solution, the N fields are added to the N CSI reporting sub-configurations in the CSI reporting configuration. The N fields correspond one-to-one to the N CSI reporting sub-configurations. The N CSI reporting sub-configurations correspond one-to-one to the N CSI resource configurations. The N CSI resource configurations are associated with N carriers. That is, the terminal device can determine the N fields according to the N reporting sub-configurations in the CSI reporting configuration, and perform channel measurement on the N carriers associated with the N CSI resource configurations through the N CSI resource configurations corresponding to the N fields, thereby enabling the terminal device to perform joint channel measurement on the N carriers.

[0016] In combination with the first aspect, in certain implementations of the first aspect, the CSI reporting configuration includes at least one CSI measurement resource group, the at least one CSI measurement resource group includes M CSI measurement resources, the M CSI measurement resources correspond to the N CSI resource configurations, M is a positive integer greater than or equal to N, and the terminal device obtains the CSI according to the CSI reporting configuration, including: the terminal device determines the M CSI measurement resources corresponding to the N CSI resource configurations according to the at least one CSI measurement resource group; the terminal device obtains the CSI according to the M CSI measurement resources.

[0017] It should be understood that the CSI reporting configuration includes at least one CSI measurement resource group, which includes M CSI measurement resources. N CSI resource configurations correspond to M CSI measurement resources, where M ≥ N. When a terminal device obtains CSI based on the N CSI resource configurations, the terminal device performs channel measurement on the N carriers based on the M CSI measurement resources corresponding to the N CSI resource configurations, and obtains the CSI.

[0018] With reference to the first aspect, in some possible implementations, the CSI reporting configuration includes N CSI reporting sub-configurations, the N CSI reporting sub-configurations correspond one-to-one to the N CSI resource configurations, and the terminal device obtains channel state information CSI according to the CSI reporting configuration, including: determining, by the terminal device, the N CSI resource configurations according to the N CSI reporting sub-configurations;

[0019] The terminal device obtains the CSI according to the N CSI resource configurations.

[0020] With reference to the first aspect, in some possible implementations, the terminal device obtains the CSI according to the CSI reporting configuration, including:

[0021] The terminal device obtains the CSI based on M CSI measurement resources, where an interval between the M CSI measurement resources on the time domain resources is less than or equal to a first threshold, and the first threshold is a positive integer. The M CSI measurement resources correspond to the N CSI resource configurations, and M is a positive integer greater than or equal to N.

[0022] It should be understood that when performing channel measurement on N carriers, the interval between the M CSI measurement resources used in the time domain resources is less than or equal to the first threshold. The first threshold is predefined, or preconfigured, or indicated by the network device, and this application does not make any specific limitations on this.

[0023] With reference to the first aspect, in some possible implementations, before the terminal device receives the CSI reporting configuration from the network device, the method further includes: the terminal device sending channel joint measurement capability information to the network device, where the channel joint measurement capability information is used by the network device to determine the CSI reporting configuration, and the channel joint measurement capability information includes one or more of the following:

[0024] The terminal device supports the maximum number of carriers for channel joint measurement, the frequency band combination information supported by the terminal device for channel joint measurement, the maximum total bandwidth supported by the terminal device for channel joint measurement, and the maximum number of ports supported by the terminal device for channel joint measurement.

[0025] It should be understood that before the network device sends the CSI reporting configuration to the terminal device, the terminal device sends a channel joint measurement capability indication information to the network device. The network device further determines the CSI reporting configuration based on the channel joint measurement capability information of the terminal device, which is used for the terminal device to perform channel measurement on multiple carriers.

[0026] In combination with the first aspect, in some possible implementation methods, the terminal device obtains the CSI according to the CSI reporting configuration, including: the terminal device determines the subband granularity of the channel measurement according to the first signaling, and the first signaling is used to instruct the terminal device to determine the subband granularity of the channel measurement according to the total bandwidth of the N carriers; the terminal device obtains the CSI according to the subband granularity and the N CSI resource configurations.

[0027] Optionally, the total bandwidth of the N carriers may refer to the sum of the bandwidths of the N bandwidth parts (BWP) corresponding to the N carriers. It should be understood that the first signaling may be predefined or preconfigured by the terminal device, or indicated by the network device, and this application does not make any specific limitation on this.

[0028] It should be understood that when a terminal device performs joint measurement on N carriers, the subband granularity for channel measurement determined according to the first signaling is determined based on the total bandwidth of the N carriers, rather than determining a subband granularity for channel measurement based on the bandwidth of each carrier and then merging the subband granularities of the N carriers. This shows that the present application can reduce the complexity of the terminal device during the joint channel measurement process.

[0029] In a second aspect, a communication device is provided, including a transceiver unit for receiving a channel state information (CSI) reporting configuration from a network device, where the CSI reporting configuration includes N fields, the N fields corresponding one-to-one to N CSI resource configurations, a first field in the N fields being used to indicate a first carrier associated with a first CSI resource configuration corresponding to the first field, the N CSI resource configurations being associated with N carriers, where N is a positive integer greater than 1; a processing unit for obtaining channel state information (CSI) based on the N CSI resource configurations; and the transceiver unit for sending the CSI to the network device.

[0030] In combination with the second aspect, in certain implementations of the first aspect, the CSI reporting configuration includes N CSI reporting sub-configurations, the N CSI reporting sub-configurations include the N fields, and the N fields correspond one-to-one to the N CSI reporting sub-configurations.

[0031] In combination with the second aspect, in certain implementations of the first aspect, the CSI reporting configuration includes at least one CSI measurement resource group, the at least one CSI measurement resource group includes M CSI measurement resources, the M CSI measurement resources correspond to the N CSI resource configurations, M is a positive integer greater than or equal to N, and the processing unit is further used to determine, based on the at least one CSI measurement resource group, the M CSI measurement resources corresponding to the N CSI resource configurations; the processing unit is further used to obtain the CSI based on the M CSI measurement resources.

[0032] In combination with the second aspect, in certain implementations of the first aspect, the CSI reporting configuration includes N CSI reporting sub-configurations, the N CSI reporting sub-configurations correspond one-to-one to the N CSI resource configurations, and the processing unit is further used to determine the N CSI resource configurations based on the N CSI reporting sub-configurations; the processing unit is further used to obtain the CSI based on the N CSI resource configurations.

[0033] In combination with the second aspect, in certain implementations of the first aspect, the processing unit is further used to obtain the CSI based on M CSI measurement resources, where an interval between the M CSI measurement resources on the time domain resources is less than or equal to a first threshold, and the first threshold is a positive integer, wherein the M CSI measurement resources are associated with the N CSI resource configurations, and M is a positive integer greater than or equal to N.

[0034] In combination with the second aspect, in certain implementations of the first aspect, before the transceiver unit is used to receive the CSI reporting configuration from the network device, the method also includes: the transceiver unit is also used to send channel joint measurement capability information to the network device, and the channel joint measurement capability information is used by the network device to determine the CSI reporting configuration. The channel joint measurement capability information includes one or more of the following: the maximum number of carriers supported by the terminal device for channel joint measurement, the frequency band combination information supported by the terminal device for channel joint measurement, the maximum total bandwidth number supported by the terminal device for channel joint measurement, and the maximum number of ports supported by the terminal device for channel joint measurement.

[0035] In combination with the second aspect, in certain implementations of the first aspect, the processing unit is further used to determine the subband granularity of the channel measurement based on the first signaling. The first signaling is used to instruct the terminal device to determine the subband granularity of the channel measurement based on the total bandwidth of the N carriers; the processing unit is further used to obtain CSI based on the subband granularity and the N CSI resource configurations.

[0036] Optionally, the total bandwidth of the N carriers may refer to the sum of the bandwidths of N BWPs corresponding to the N carriers.

[0037] On the third aspect, a method for resource configuration is provided. The method can be executed by a network device, or can also be executed by a component of the network device (such as a chip or circuit), without limitation.

[0038] The method includes: a network device sends a channel state information (CSI) reporting configuration to a terminal device, where the CSI reporting configuration includes N fields, the N fields correspond one-to-one to N CSI resource configurations, a first field among the N fields is used to indicate a first carrier associated with a first CSI resource configuration among the N CSI resource configurations corresponding to the first field, the N CSI resource configurations being associated with N carriers, where N is a positive integer greater than 1; and the network device receives channel state information (CSI) from the terminal device, where the CSI is obtained according to the CSI reporting configuration.

[0039] In combination with the third aspect, in some possible implementation methods, the CSI reporting configuration includes N fields, including: the CSI reporting configuration includes N CSI reporting sub-configurations, the N CSI reporting sub-configurations include the N fields, and the N fields correspond one-to-one to the N CSI reporting sub-configurations.

[0040] With reference to the third aspect, in some possible implementations, the CSI reporting configuration includes at least one CSI measurement resource group, the at least one CSI measurement resource group includes M CSI measurement resources, the M CSI measurement resources correspond to the N CSI resource configurations, M is a positive integer greater than or equal to N, and the CSI is obtained according to the CSI reporting configuration, including:

[0041] The CSI is acquired according to M CSI measurement resources, the M CSI measurement resources correspond to the N CSI resource configurations, and the N CSI resource configurations are determined according to the at least one CSI measurement resource group.

[0042] With reference to the third aspect, in some possible implementations, the CSI reporting configuration includes N CSI reporting sub-configurations, the N CSI reporting sub-configurations correspond one-to-one to the N CSI resource configurations, and the CSI is obtained according to the CSI reporting configuration, including:

[0043] The CSI is acquired according to the N CSI resource configurations, and the N CSI resource configurations are determined according to the N CSI reporting subconfigurations.

[0044] In combination with the third aspect, in some possible implementation methods, the CSI is obtained based on the CSI reporting configuration, including: the CSI is obtained based on M CSI measurement resources, the interval of the M CSI measurement resources on the time domain resources is less than or equal to a first threshold, and the first threshold is a positive integer, wherein the M CSI measurement resources are associated with the N CSI resource configurations, and M is a positive integer greater than or equal to N.

[0045] In combination with the third aspect, in some possible implementation methods, before the network device sends the CSI reporting configuration to the terminal device, the method also includes: the network device receives channel joint measurement capability information from the terminal device, and the channel joint measurement capability information is used by the network device to determine the CSI reporting configuration. The channel joint measurement capability information includes one or more of the following: the maximum number of carriers supported by the terminal device for channel joint measurement, the frequency band combination information supported by the terminal device for channel joint measurement, the maximum total bandwidth number supported by the terminal device for channel joint measurement, and the maximum number of ports supported by the terminal device for channel joint measurement.

[0046] In combination with the third aspect, in some possible implementation methods, the method also includes: the network device sends a first signaling to the terminal device, and the first signaling is used to instruct the terminal device to determine the subband granularity of the channel measurement based on the total bandwidth of the N carriers, wherein the CSI is obtained based on the subband granularity and the N CSI resource configurations.

[0047] In a fourth aspect, a communication device is provided, comprising: a transceiver unit for sending a channel state information CSI reporting configuration to a terminal device, the CSI reporting configuration comprising N fields, the N fields corresponding one-to-one to N CSI resource configurations, a first field among the N fields being used to indicate a first carrier associated with a first CSI resource configuration among the N CSI resource configurations corresponding to the first field, the N CSI resource configurations being associated with N carriers, wherein N is a positive integer greater than 1; the transceiver unit is further used to receive channel state information CSI from the terminal device, the CSI being obtained based on the CSI reporting configuration.

[0048] In combination with the fourth aspect, in some possible implementation methods, the CSI reporting configuration includes N fields, including: the CSI reporting configuration includes N CSI reporting sub-configurations, the N CSI reporting sub-configurations include the N fields, and the N fields correspond one-to-one to the N CSI reporting sub-configurations.

[0049] In combination with the fourth aspect, in some possible implementations, the CSI reporting configuration includes at least one CSI measurement resource group, the at least one CSI measurement resource group includes M CSI measurement resources, the M CSI measurement resources correspond to the N CSI resource configurations, M is a positive integer greater than or equal to N, the CSI is obtained based on the M CSI measurement resources, the M CSI measurement resources correspond to the N CSI resource configurations, and the N CSI resource configurations are determined based on the at least one CSI measurement resource group.

[0050] In combination with the fourth aspect, in some possible implementations, the CSI reporting configuration includes N CSI reporting sub-configurations, the N CSI reporting sub-configurations correspond one-to-one to the N CSI resource configurations, the CSI is obtained based on the N CSI resource configurations, and the N CSI resource configurations are determined based on the N CSI reporting sub-configurations.

[0051] In combination with the fourth aspect, in some possible implementations, the CSI is obtained based on M CSI measurement resources, and the interval between the M CSI measurement resources on the time domain resources is less than or equal to a first threshold, and the first threshold is a positive integer, wherein the M CSI measurement resources are associated with the N CSI resource configurations, and M is a positive integer greater than or equal to N.

[0052] With reference to the fourth aspect, in some possible implementations, before the transceiver unit is configured to send the CSI reporting configuration to the terminal device, the transceiver unit is further configured to receive channel joint measurement capability information from the terminal device. The channel joint measurement capability information is used by the network device to determine the CSI reporting configuration. The channel joint measurement capability information includes one or more of the following:

[0053] The terminal device supports the maximum number of carriers for channel joint measurement, the frequency band combination information supported by the terminal device for channel joint measurement, the maximum total bandwidth supported by the terminal device for channel joint measurement, and the maximum number of ports supported by the terminal device for channel joint measurement.

[0054] In combination with the fourth aspect, in some possible implementation methods, the transceiver unit is also used to send a first signaling to the terminal device, and the first signaling is used to instruct the terminal device to determine the subband granularity of the channel measurement based on the total bandwidth of the N carriers, wherein the CSI is obtained based on the subband granularity and the N CSI resource configurations.

[0055] In a fifth aspect, a communication device is provided, which includes: a processor for executing a program, and when the program is executed, the processor is used to execute the methods provided in the above aspects.

[0056] In a possible implementation, the communication device further includes a memory, and the memory is used to store programs.

[0057] In a sixth aspect, the present application provides a processor for executing the methods provided in the above aspects. In the process of executing these methods, the process of sending the above information and obtaining / receiving the above information in the above methods can be understood as the process of the processor outputting the above information and the process of the processor receiving the input above information. When outputting the above information, the processor outputs the above information to the transceiver so that the transceiver can transmit it. After being output by the processor, the above information may also need to undergo other processing before reaching the transceiver. Similarly, when the processor receives the input above information, the transceiver obtains / receives the above information and inputs it into the processor. Furthermore, after the transceiver receives the above information, the above information may need to undergo other processing before being input into the processor.

[0058] Based on the above principles, for example, the receiving request message mentioned in the above method can be understood as the processor receiving input information.

[0059] For the operations such as transmission, sending and acquisition / reception involved in the processor, if there is no special explanation, or if it does not conflict with its actual role or internal logic in the relevant description, it can be more generally understood as processor output and reception, input and other operations, rather than the transmission, sending and receiving operations directly performed by the radio frequency circuit and antenna. In the implementation process, the above-mentioned processor can be a processor specifically used to execute these methods, or it can be a processor that executes computer instructions in the memory to execute these methods, such as a general-purpose processor. The above-mentioned memory can be a non-transitory memory, such as a read-only memory (ROM), which can be integrated with the processor on the same chip, or can be set on different chips respectively. The embodiment of the present application does not limit the type of memory and the setting method of the memory and the processor.

[0060] In a seventh aspect, a computer-readable storage medium is provided, which stores a program code for execution by a device, wherein the program code includes a program for executing the methods provided in the above aspects.

[0061] In an eighth aspect, a computer program product comprising instructions is provided, which, when run on a computer, enables the computer to execute the methods provided in the above aspects.

[0062] In a ninth aspect, a chip is provided, which includes a processor and a communication interface. The processor reads instructions stored in a memory through the communication interface to execute the methods provided in the above aspects.

[0063] Optionally, as an implementation method, the chip may further include a memory storing instructions, and the processor is used to execute the instructions stored in the memory. When the instructions are executed, the processor is used to execute the methods provided in the above aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] FIG1 shows a schematic diagram of a communication system 100 applicable to the method provided in an embodiment of the present application.

[0065] FIG2 is a schematic diagram of a basic process of a network device acquiring downlink channel CSI.

[0066] FIG3 is a schematic diagram showing that the actual number of repeated transmissions of a terminal device is less than the number of repeated transmissions configured by a network device.

[0067] FIG4 is a schematic flow chart of a resource configuration method provided in this application.

[0068] FIG5 is a schematic block diagram of a communication device provided in an embodiment of the present application.

[0069] FIG6 is a schematic block diagram of another communication device provided in an embodiment of the present application.

[0070] FIG7 is a schematic block diagram of a chip system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0071] The technical solution in this application will be described below with reference to the accompanying drawings.

[0072] The technical solution provided in this application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, worldwide interoperability for microwave access (WiMAX) communication system, fifth generation (5G) mobile communication system or new radio access technology (NR) or future communication system, such as sixth generation (6G) communication system. Among them, the 5G mobile communication system may include non-standalone (NSA) and / or standalone (SA) networking.

[0073] The technical solution provided in this application can also be applied to machine type communication (MTC), long term evolution technology for machine-to-machine communication (LTE-M), device-to-device (D2D) network, machine-to-machine (M2M) network, internet of things (IoT) network or other networks. Among them, IoT network can include, for example, Internet of Vehicles. Among them, the communication mode in the Internet of Vehicles system is collectively referred to as vehicle to other devices (vehicle to X, V2X, X can represent anything), for example, the V2X can include: vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, vehicle to pedestrian (V2P) communication or vehicle to network (V2N) communication, etc.

[0074] The technical solution provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system, etc. This application does not limit this.

[0075] In the embodiment of the present application, the network device can be any device with wireless transceiver function. The device includes, but is not limited to, an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., a home evolved NodeB, or a home Node B, HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity (WiFi) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc. It may also be a gNB in ​​a 5G system, such as NR, or a transmission point (TRP or TP), one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (DU), etc.

[0076] In some deployments, the gNB may include a centralized unit (CU) and a DU. The gNB may also include an active antenna unit (AAU). The CU implements some gNB functions, while the DU implements some gNB functions. For example, the CU is responsible for processing non-real-time protocols and services, implementing the functions of the radio resource control (RRC), service data adaptation protocol (SDAP), and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, implementing the functions of the radio link control (RLC), medium access control (MAC), and physical (PHY) layers. The AAU implements some physical layer processing functions, RF processing, and active antenna-related functions. Because RRC layer information ultimately becomes PHY layer information, or is converted from PHY layer information, in this architecture, higher-layer signaling, such as RRC layer signaling, can also be considered to be sent by the DU, or by both the DU and the AAU. It is understood that the network device may include one or more of a CU node, a DU node, and an AAU node. In addition, the CU may be classified as a network device in an access network (RAN) or a network device in a core network (CN), which is not limited in this application.

[0077] Network equipment provides services for cells, and terminal devices communicate with cells through transmission resources allocated by the network equipment (for example, frequency domain resources, or spectrum resources). The cell can belong to a macro base station (for example, a macro eNB or macro gNB), or to a base station corresponding to a small cell. Small cells here can include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0078] In an embodiment of the present application, the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.

[0079] The terminal device may be a device that provides voice / data connectivity to users, such as a handheld device or vehicle-mounted device with wireless connection function. At present, some examples of terminals may include: mobile phones, tablet computers, computers with wireless transceiver functions (such as laptops, PDAs, etc.), mobile internet devices (MIDs), virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in telemedicine, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or future evolved public land mobile communication networks (PLMNs). terminal equipment in network, PLMN, etc.

[0080] Wearable devices, also known as wearable smart devices, are a general term for wearable devices that use wearable technology to intelligently design and develop wearable devices for daily wear, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include those that are fully functional, large in size, and can achieve full or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0081] Furthermore, terminal devices can also be end devices in the Internet of Things (IoT) system. IoT is a crucial component of future information technology development. Its primary technical feature is connecting objects to the Internet through communications technology, thereby enabling intelligent networks that interconnect humans and machines, and objects and things. IoT technology, for example, utilizes narrowband (NB) technology to achieve massive connectivity, deep coverage, and power-saving terminals.

[0082] In addition, terminal devices can also include sensors such as smart printers, train detectors, and gas stations. Their main functions include collecting data (part of the terminal devices), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.

[0083] To facilitate understanding of the embodiments of the present application, a communication system applicable to the channel measurement method provided in the embodiments of the present application is first described in detail with reference to FIG1 .

[0084] Figure 1 shows a schematic diagram of a communication system 100 applicable to the method provided in an embodiment of the present application. As shown in Figure 1, the communication system 100 may include at least one network device, such as the network device 101 in the 5G system shown in Figure 1; the communication system 100 may also include at least one terminal device, such as the terminal devices 102 to 107 shown in Figure 1. The terminal devices 102 to 107 may be mobile or fixed. The network device 101 and one or more of the terminal devices 102 to 107 can communicate via a wireless link. Each network device can provide communication coverage for a specific geographical area and can communicate with terminal devices located in the coverage area. For example, the network device can send configuration information to the terminal device, and the terminal device can send uplink data to the network device based on the configuration information; for another example, the network device can send downlink data to the terminal device. Therefore, the network device 101 and terminal devices 102 to 107 in Figure 1 constitute a communication system.

[0085] Alternatively, terminal devices can communicate directly with each other. For example, direct communication between terminal devices can be achieved using D2D technology. As shown in the figure, terminal devices 105 and 106, and terminal devices 105 and 107 can communicate directly using D2D technology. Terminal devices 106 and 107 can communicate with terminal device 105 individually or simultaneously.

[0086] Terminal devices 105 to 107 may also communicate with network device 101 respectively. For example, they may communicate directly with network device 101, as shown in the figure, as terminal devices 105 and 106 may communicate directly with network device 101; or they may communicate indirectly with network device 101, as shown in the figure, as terminal device 107 communicates with network device 101 via terminal device 106.

[0087] It should be understood that FIG1 exemplarily illustrates a network device and multiple terminal devices, as well as communication links between the communication devices. Optionally, the communication system 100 may include multiple network devices, and each network device may include other numbers of terminal devices within its coverage area, such as more or fewer terminal devices. This application is not limited to this.

[0088] Each of the above-mentioned communication devices, such as the network device 101 and terminal devices 102 to 107 in Figure 1, can be configured with multiple antennas. The multiple antennas may include at least one transmitting antenna for sending signals and at least one receiving antenna for receiving signals. In addition, each communication device also includes a transmitter chain and a receiver chain. Those skilled in the art will understand that they may include multiple components related to signal transmission and reception (such as processors, modulators, multiplexers, demodulators, demultiplexers, or antennas, etc.). Therefore, the network device and the terminal device can communicate using multi-antenna technology.

[0089] Optionally, the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, but the embodiments of the present application are not limited thereto.

[0090] FIG2 is a schematic diagram of a basic process of a network device acquiring downlink channel CSI.

[0091] It should be understood that in FDD systems, because the separation between the uplink and downlink frequency bands is greater than the bandwidth, there is no complete reciprocity between the uplink and downlink channels. In traditional FDD systems, the terminal device is required to report the CSI of the downlink channel to the network equipment. The basic process is shown in Figure 2.

[0092] 201. The network device sends channel measurement configuration information to the terminal device.

[0093] Correspondingly, the terminal device receives the channel measurement configuration information from the network device.

[0094] The channel measurement configuration is used to instruct the terminal device to measure the channel and the time of the channel measurement.

[0095] 202. The network device sends a reference signal to the terminal device.

[0096] Accordingly, the terminal device receives the reference signal from the network device.

[0097] It should be understood that the reference signal is used by the terminal device to measure the downlink channel.

[0098] The terminal device measures the downlink channel corresponding to the channel measurement configuration information based on the channel measurement configuration information and reference signal of the network device.

[0099] 203. The terminal device determines a channel measurement result according to the reference signal, and sends the channel measurement result to the network device.

[0100] Correspondingly, the network device receives the channel measurement result sent by the terminal device.

[0101] It should be understood that the channel acquisition process shown in Figure 2 above can also be used in TDD systems. For example, when multiple TDD frequency bands are aggregated and only some TDD frequency bands have uplink measurement pilots (such as sounding reference signals, SRS), the method shown in Figure 2 can be used to enable the network device to obtain the CSI of the downlink channel.

[0102] In carrier aggregation scenarios, when the aggregated frequency bands include multiple FDD bands or multiple TDD bands without uplink measurement pilots, the terminal device needs to measure the channels of multiple carriers to support multi-frequency transmission. The network equipment needs to configure a CSI-RS resource for each carrier. The terminal device then measures the channels corresponding to the multiple carriers based on the channel measurement configuration information. Each carrier measurement consumes the terminal device's independent CSI measurement capability.

[0103] Due to factors such as terminal device hardware resources, the terminal device's measurement capabilities are limited. For example, a terminal device's measurement capabilities may support two sets of 32-port CSI measurements, or eight sets of 8-port CSI measurements. In the case of tri-band, as shown in Figure 3, each carrier corresponds to 32 ports (labeled as 32T in the figure). Therefore, the terminal device can only support 8-port channel measurements on each carrier, that is, three sets of 8-port CSI measurements.

[0104] As can be seen, in the above carrier aggregation scenario, the terminal device needs to measure the channels of multiple carriers to support multi-frequency transmission. However, due to the limitations of the terminal device's own measurement capabilities, it is unable to obtain complete channel information, resulting in low transmission performance of the terminal device.

[0105] In the technical solution for non-coherent joint transmission (NCJT) channel measurement, network equipment generally configures one or more resource pairs within a CSI-RS resource set. Terminal devices then perform joint measurement of NCJT channels based on these resource pairs. However, because the measurement resources in these resource pairs come from the same CSI-RS resource set—that is, because these resource pairs belong to the same carrier—when a terminal device measures NCJT channels based on these resource pairs, it only measures the channels corresponding to the same carrier, making it impossible to perform joint measurement of multiple frequency channels.

[0106] In the discussion of network energy-saving channel measurement, it was proposed that the network device include multiple CSI reporting sub-configurations in one CSI reporting configuration, where each sub-configuration is associated with one or more CSI measurement resources. The CSI fed back by the terminal device to the network device is sent to the network device in the same CSI report. The one or measurement resources associated with multiple CSI reporting sub-configurations in a CSI reporting configuration of the network device all belong to the same carrier, that is, the measurement resources associated with the CSI sub-configuration of the terminal device all belong to the same carrier, so the terminal device cannot support multi-frequency channel joint measurement.

[0107] In response to the technical problems existing in the relevant technical solutions, the present application proposes a resource configuration method, which enables a terminal device to perform joint measurement on multiple carriers in a carrier aggregation scenario.

[0108] When the terminal device performs joint measurement on multiple carriers, the total bandwidth of the multiple carriers cannot exceed the maximum bandwidth that can be supported by a single carrier (for example, 100M).

[0109] FIG4 is a schematic flow chart of a resource configuration method provided in this application.

[0110] 401. The network device sends a CSI reporting configuration to the terminal device.

[0111] Accordingly, the terminal device receives the CSI reporting configuration from the network device.

[0112] In one possible implementation, the CSI reporting configuration includes N fields and indication information of N CSI resource configurations. The N fields correspond one-to-one to the indication information of the N CSI resource configurations. The nth field among the N fields is used to indicate the nth carrier associated with the CSI resource configuration indicated by the indication information of the nth CSI resource configuration. That is, N CSI resource configurations are associated with N carriers. N is a positive integer greater than 1, and n is a positive integer less than or equal to N.

[0113] It should be understood that the indication information of the CSI resource configuration may be part or all of the CSI resource configuration, or may be information indicating the CSI resource configuration (such as the index, sequence number or identifier of the CSI resource configuration).

[0114] For example, the N fields may be N carrier fields, or the N fields may be one group / multiple groups of carrier fields, where the one group / multiple groups of carrier fields include N carrier fields.

[0115] With this implementation, the terminal device performs channel measurement on the N carriers associated with the N CSI resource configurations based on the N fields in the CSI reporting configuration, thereby enabling the terminal device to perform joint channel measurement on the N carriers. Furthermore, adding N new fields to the CSI reporting configuration enables better compatibility with existing standards. This means that no major changes to the CSI reporting configuration in existing standards are required; simply adding N new fields enables the terminal device to perform joint channel measurement on the N carriers.

[0116] In another possible implementation, the CSI reporting configuration includes N CSI reporting sub-configurations, each of which includes N fields and indication information of N CSI resource configurations. There is a one-to-one correspondence between the N fields, the indication information of the N CSI resource configurations, and the N CSI reporting sub-configurations. That is, there is a one-to-one correspondence between the N CSI reporting sub-configurations and the N CSI resource configurations, and the N CSI resource configurations are associated with N carriers. In other words, the nth field among the N fields is used to indicate the nth carrier associated with the CSI resource configuration indicated by the indication information of the nth CSI resource configuration contained in the nth CSI reporting sub-configuration.

[0117] Through this implementation method, the N fields are added to the N CSI reporting sub-configurations in the CSI reporting configuration, the N fields correspond one-to-one to the N CSI reporting sub-configurations, the N CSI reporting sub-configurations correspond one-to-one to the N CSI resource configurations, and the N CSI resource configurations are associated with N carriers, that is, the terminal device can determine the N fields according to the N reporting sub-configurations in the CSI reporting configuration, and perform channel measurement on the N carriers associated with the N CSI resource configurations through the N CSI resource configurations corresponding to the N fields, thereby enabling the terminal device to perform joint channel measurement on the N carriers.

[0118] In another possible implementation, the CSI reporting configuration includes N CSI reporting subconfigurations and at least one CSI measurement resource group. The N CSI reporting subconfigurations include N fields, each of which is used to indicate the N carriers associated with the N CSI resource configurations. The N CSI reporting subconfigurations, the N CSI resource configurations, and the N fields have a one-to-one correspondence.

[0119] The CSI reporting configuration further includes indication information of the N CSI resource configurations, or the N CSI reporting sub-configurations further include indication information of the N CSI resource configurations. When the CSI reporting configuration includes indication information of the N CSI resource configurations and N CSI reporting sub-configurations, the indication information of the N CSI resource configurations corresponds one-to-one with the N CSI reporting sub-configurations; when the CSI reporting configuration includes N CSI reporting sub-configurations, and the N CSI reporting sub-configurations include indication information of the N CSI resource configurations, the indication information of the N CSI resource configurations corresponds one-to-one with the N CSI reporting sub-configurations.

[0120] The N CSI resource configurations include M CSI measurement resources, where M represents the number of CSI measurement resources associated with the N CSI resource configurations. The specific value of M is determined by the number of CSI measurement resources configured by the system or network device.

[0121] It should be understood that the number of CSI measurement resources included in each of the at least one CSI measurement resource group is less than or equal to M. The at least one CSI measurement resource group includes m CSI measurement resources among the M CSI measurement resources, the m CSI measurement resources correspond to N carriers, and the terminal device performs channel measurement on the N carriers based on the m CSI measurement resources, where M≥m≥N. The m CSI measurement resources are part or all of the M CSI measurement resources.

[0122] It should be understood that the at least one CSI measurement resource group includes m CSI measurement resources, and the m CSI measurement resources correspond to N CSI resource configurations. For example, when m=N, the m CSI measurement resources correspond to the N CSI resource configurations in sequence, that is, the first CSI measurement resource in the at least one CSI measurement resource group corresponds to the first CSI resource configuration, the second CSI measurement resource corresponds to the second CSI resource configuration, and so on. When m>N, the network device can directly or indirectly indicate the correspondence between the m CSI measurement resources and the N CSI resource configurations through indication signaling. For example, the network device can indicate the number of CSI measurement resources corresponding to each of the N CSI resource configurations through indication signaling. Assuming N=2 and m=3, the network device indicates through indication signaling that the first CSI measurement resource in the at least one CSI measurement resource group corresponds to the first CSI resource configuration, and the second CSI measurement resource and the third CSI measurement resource correspond to the second CSI resource configuration; or, the network device indicates through indication signaling that the first CSI measurement resource and the second CSI measurement resource in the at least one CSI measurement resource group correspond to the first CSI resource configuration, and the three CSI measurement resources correspond to the second CSI resource configuration.

[0123] It should also be understood that the network device can indicate the correspondence between the CSI measurement resources and the CSI resource configuration through indication information, or the terminal device predefines the correspondence between the CSI measurement resources and the CSI resource configuration, and the network device does not need to indicate the correspondence between the CSI measurement resources and the CSI resource configuration through signaling, or the terminal device predefines the correspondence between multiple CSI measurement resources and CSI resource configurations, and the network device indicates the serial numbers or index numbers in the multiple correspondences through signaling, etc. This application does not make specific limitations on this.

[0124] With this implementation, the terminal device performs channel measurement on the N carriers associated with the N CSI resource configurations in the CSI reporting configuration and at least one CSI measurement resource group, where the N CSI reporting subconfigurations include N fields. This enables the terminal device to perform joint channel measurement on the N carriers. Furthermore, when performing joint channel measurement on the N carriers, the CSI measurement resources in at least one CSI measurement resource group are used to perform joint channel measurement on the N carriers. This eliminates the need for the terminal device to monitor excessive measurement resources, thereby reducing the complexity of the terminal device and its resource overhead.

[0125] In another possible implementation, the CSI reporting configuration includes N CSI reporting sub-configurations. The N CSI reporting sub-configurations include N fields, N' CSI measurement resource groups, and indication information of N CSI resource configurations, where N' is a positive integer greater than or equal to N, that is, each CSI reporting sub-configuration in the N CSI reporting sub-configurations includes at least one CSI measurement resource group. The N CSI reporting sub-configurations, the N fields, and the indication information of the N CSI resource configurations correspond one to one. The terminal device can determine the CSI measurement resources included in the CSI reporting sub-configuration based on the CSI reporting sub-configuration, and the terminal device determines the CSI measurement resources used to measure the field from the CSI measurement resources in the CSI measurement resource group included in the CSI reporting sub-configuration based on the fields included in the CSI reporting sub-configuration and the indication information of the CSI resource configuration.

[0126] Assume that the N' CSI measurement resource groups include m different CSI measurement resources, and the m CSI measurement resources correspond to N CSI resource configurations, where M ≥ m ≥ N. M is the number of CSI measurement resources included in the N CSI resource configurations associated with the N fields. The specific value of M is determined by the number of CSI measurement resources configured by the system or network device. Each of the N CSI reporting subconfigurations includes at least one CSI measurement resource group. The CSI measurement resources included in the CSI measurement resource groups belonging to the same CSI reporting subconfiguration correspond to the same carrier.

[0127] For example, the CSI reporting configuration includes CSI reporting subconfiguration #1 and CSI reporting subconfiguration #2. The field corresponding to CSI reporting subconfiguration #1 is carrier #1, which indicates that the carrier is carrier #1. The field corresponding to CSI reporting subconfiguration #2 is carrier #2, which indicates that the carrier is carrier #2. CSI reporting subconfiguration #1 includes CSI measurement resource group #1-1 and CSI measurement resource group #1-2. CSI measurement resource group #1-1 includes CSI measurement resources #1, CSI measurement resources #2, and CSI measurement resources #3. CSI measurement resource group #1-2 includes CSI measurement resources #4 and CSI measurement resources #5. That is, the carrier corresponding to CSI measurement resources #1, CSI measurement resources #2, and CSI measurement resources #3 is carrier #1, and the carrier corresponding to CSI measurement resources #4 and CSI measurement resources #5 is carrier #1.

[0128] In another possible implementation, a CSI reporting configuration includes at least one CSI measurement resource group and N fields. The N fields correspond one-to-one to the N CSI resource configurations. The N CSI resource configurations include M CSI measurement resources. The at least one CSI measurement resource combination includes m CSI measurement resources of the M CSI measurement resources, where M ≥ m ≥ N. The number of CSI measurement resources included in each of the at least one CSI measurement resource group is less than or equal to M and greater than or equal to N. The number of CSI measurement resources in different CSI measurement resource groups may be the same or different. The corresponding method may be as described above and will not be repeated here.

[0129] Optionally, the CSI reporting configuration is determined by the network device according to the capability of the terminal device to perform joint measurement on the channel.

[0130] 402. The terminal device obtains CSI according to the CSI reporting configuration.

[0131] For example, after a terminal device receives a CSI reporting configuration from a network device, the terminal device obtains CSI based on the CSI reporting configuration. The CSI is the CSI of N carriers corresponding to N CSI resource configurations. The N CSI resource configurations are included in the CSI reporting configuration, or the N CSI resource configurations are included in N CSI reporting sub-configurations, which are included in the CSI reporting configuration.

[0132] In one possible implementation, a terminal device receives a CSI reporting configuration from a network device, and the terminal device determines N CSI resource configurations based on the N fields in the CSI reporting configuration and the indication information of the N CSI resource configurations. The N fields correspond one-to-one to the indication information of the N CSI resource configurations, and the N fields are used to indicate the N carriers associated with the CSI resource configuration indicated by the indication information of the N CSI resource configurations. For example, the CSI resource configuration indicated by the indication information of the N CSI resource configurations includes M CSI measurement resources, that is, the M CSI measurement resources can be used by the terminal device to perform channel measurement on the N carriers and obtain CSI. The CSI corresponds to the channel state information of the N carriers. The M represents the number of CSI measurement resources associated with the N CSI resource configurations indicated by the indication information of the N CSI resource configurations, and the specific value of M is determined by the number of CSI measurement resources configured by the system or network device.

[0133] It should be understood that when the terminal device performs channel measurement on the N carriers based on M CSI measurement resources, some or all of the M CSI measurement resources may be used to perform channel measurement on the N carriers. For example, the terminal device uses m CSI measurement resources to perform channel measurement on the N carriers, where M≥m≥N.

[0134] Among them, when the terminal device obtains CSI based on m CSI measurement resources, the interval between the m CSI measurement resources in the time domain resources is less than or equal to the first threshold, and the first threshold is a positive integer. The value of the first threshold can be predefined, or preconfigured, or indicated by the network device, and this application does not make any specific restrictions on this. For example, the interval between the time slots where the m CSI measurement resources are located is less than or equal to X time slots, and X is a positive integer. The channels to which the carriers associated with the m CSI measurement resources are located have a high correlation within X time slots (for example, the correlation between the channel of the first time slot within X time slots and the channel of the Xth time slot is greater than or equal to 0.99). Among them, the specific value of X is not limited in this application.

[0135] It should also be understood that the indication information of the N CSI resource configurations may be part or all of the CSI resource configurations, or may indicate information of the CSI resource configurations (such as the index, sequence number or identifier of the CSI resource configuration, etc.).

[0136] When the N CSI resource configurations are sent by the network device to the terminal device through the indication information of the N CSI resource configurations in the CSI reporting configuration, the terminal device can directly determine the N CSI resource configurations according to the CSI reporting configuration.

[0137] When the indication information of the N CSI resource configurations indicates information of the CSI resource configurations (such as the index, sequence number, or identifier of the CSI resource configurations), the terminal device predefines / preconfigures a correspondence between the N CSI resource configurations and the information of the N CSI resource configurations (such as the index, sequence number, or identifier of the CSI resource configurations). Assuming that the information of the CSI resource configuration is the index of the CSI resource configuration, after the terminal device receives the CSI reporting configuration, the terminal device determines the N CSI resource configurations based on the N fields in the CSI reporting configuration and the indexes of the N CSI resource configurations, as well as the correspondence between the N predefined / preconfigured CSI resource configurations and the indexes of the N CSI resource configurations.

[0138] In another possible implementation, a terminal device receives a CSI reporting configuration from a network device, where the CSI reporting configuration includes N CSI reporting sub-configurations, where the N CSI reporting sub-configurations include N fields and indication information of N CSI resource configurations, where the N fields, the indication information of the N CSI resource configurations, and the N CSI reporting sub-configurations correspond one to one. The terminal device performs channel measurement on the N carriers associated with the N CSI resource configurations indicated by the N fields, using part or all of the M CSI measurement resources indicated by the indication information of the N CSI resource configurations, to obtain CSI. Part or all of the M CSI measurement resources are used to perform channel measurement on the N carriers. Assuming that m CSI measurement resources are part or all of the M CSI measurement resources, the m CSI measurement resources can perform channel measurement on the N carriers, where M≥m≥N. The m CSI measurement resources are as described above and will not be repeated here.

[0139] In another possible implementation, a terminal device receives a CSI reporting configuration from a network device, where the CSI reporting configuration includes N CSI reporting subconfigurations and at least one CSI measurement resource group. The N CSI reporting subconfigurations include N fields, each of which is used to indicate the N carriers associated with the N CSI resource configurations. The N CSI reporting subconfigurations, the N CSI resource configurations, and the N fields have a one-to-one correspondence. The terminal device performs channel measurement on the N carriers associated with the N CSI resource configurations indicated by the N fields included in the N CSI reporting configurations based on the CSI measurement resources included in the at least one CSI measurement resource group, to obtain CSI.

[0140] It should be understood that the N CSI resource configurations may be included in the CSI reporting configuration. The N resource configurations include M CSI measurement resources. The terminal device determines m CSI measurement resources based on the M CSI measurement resources and the CSI measurement resources included in at least one CSI measurement resource group, and performs channel measurement on the N carriers based on the m CSI measurement resources to obtain CSI.

[0141] It should also be understood that the m CSI measurement resources are part or all of the M CSI measurement resources, and the m CSI measurement resources can perform channel measurement on the N carriers, where M≥m≥N. The m CSI measurement resources are as described above and will not be repeated here.

[0142] In another possible implementation, a terminal device receives a CSI reporting configuration from a network device, where the CSI reporting configuration includes N CSI reporting sub-configurations. The N CSI reporting sub-configurations include N fields, N' CSI measurement resource groups, and indication information of N CSI resource configurations, where N' is a positive integer greater than or equal to N, i.e., each of the N CSI reporting sub-configurations includes at least one CSI measurement resource group. The N CSI reporting sub-configurations, N fields, and indication information of the N CSI resource configurations correspond one to one. The terminal device uses the CSI measurement resources in the N' CSI measurement resource groups to perform channel measurement on the N carriers associated with the N CSI resource configurations indicated by the N fields included in the N CSI reporting sub-configurations to obtain CSI.

[0143] It should be understood that the CSI measurement resources included in the N' CSI measurement resource groups can be used to perform channel measurement on the N carriers. For example, the indication information of the N CSI resource configurations is used to indicate M CSI measurement resources. The N' CSI measurement resources include m CSI measurement resources, and the m CSI measurement resources are part or all of the M CSI measurement resources. The m CSI measurement resources can perform channel measurement on the N carriers, where M ≥ m ≥ N. The m CSI measurement resources are as described above and are not further described here.

[0144] In another possible implementation, a terminal device receives a CSI reporting configuration from a network device, where the CSI reporting configuration includes at least one CSI measurement resource group and N fields, where the N fields correspond one-to-one to the N CSI resource configurations, where the N CSI resource configurations include M CSI measurement resources, and where the at least one CSI measurement resource combination includes m CSI measurement resources of the M CSI measurement resources, where M≥m≥N. The terminal device uses the CSI measurement resources (e.g., m CSI measurement resources) in the at least one CSI measurement resource group to perform channel measurement on the N carriers associated with the N CSI resource configurations indicated by the N fields to obtain CSI. The m CSI measurement resources are part or all of the M CSI measurement resources, and the m CSI measurement resources can perform channel measurement on the N carriers, where M≥m≥N. The m CSI measurement resources are as described above and will not be repeated here.

[0145] It should be understood that the number of CSI measurement resources included in each of the at least one CSI measurement resource group is less than or equal to M and greater than or equal to N. For example, when the at least one CSI measurement resource group includes one CSI measurement resource group: CSI measurement resource group #1, the number of CSI measurement resources included in CSI measurement resource group #1 is a, that is, a satisfies M≥a≥N. When the at least one CSI measurement resource group includes three CSI measurement resource groups: CSI measurement resource group #1, CSI measurement resource group #2, and CSI measurement resource group #3, the numbers of CSI measurement resources included in CSI measurement resource group #1, CSI measurement resource group #2, and CSI measurement resource group #3 are a, b, and c, respectively. a, b, and c satisfy M≥a≥N, M≥b≥N, and M≥c≥N. The specific values ​​of a, b, and c can be the same or different. The CSI measurement resources respectively included in CSI measurement resource group #1, CSI measurement resource group #2, and CSI measurement resource group #3 may contain the same CSI measurement resources.

[0146] It should be understood that the terminal device performs channel measurement on the N carriers according to the m CSI resource configurations to obtain CSI. This can also be understood as the terminal device performing channel measurement on the N carriers according to m CSI measurement resources among the M CSI measurement resources corresponding to the N CSI resource configurations to obtain CSI. The CSI corresponds to the channel state information of the N carriers. The m CSI measurement resources are as described above and will not be repeated here.

[0147] 403. The terminal device sends CSI to the network device.

[0148] Correspondingly, the network device receives the CSI sent from the terminal device.

[0149] For example, the terminal device receives a CSI reporting configuration from the network device and determines a CSI resource configuration. The terminal device obtains CSI according to the CSI resource configuration and sends the CSI to the network device.

[0150] It should be understood that this CSI corresponds to the channel state information of N carriers. The terminal device performs joint channel measurement on the N carriers based on the CSI resource configuration and obtains the measurement results, i.e., the CSI. The terminal device sends this measurement result to the network device. Accordingly, after receiving the CSI from the terminal device, the network device sends data to the terminal device based on the downlink channel state information.

[0151] It should be understood that the CSI obtained by the terminal device through joint channel measurement of N carriers may include a precoding matrix indicator (PMI), a rank indicator (RI) and a channel quality indicator (CQI), or the CSI may include a PMI, an RI and N CQIs, where the N CQIs correspond to the N carriers, which is not limited in this application.

[0152] According to the method described in Figure 4 above, the network device sends a CSI reporting configuration to the terminal device, and the CSI reporting configuration includes N fields, and the N fields are used to indicate the N carriers associated with the N CSI resource configurations. The N CSI resource configurations may be included in the CSI reporting configuration, or the N CSI resource configurations may be included in N CSI reporting sub-configurations, and the N CSI reporting sub-configurations are included in the CSI reporting configuration. The terminal device can perform channel measurement on the N carriers associated with the N CSI resource configurations based on the CSI measurement resources included in the N CSI resource configurations to obtain CSI. The CSI corresponds to the measurement results of the N carriers, thereby enabling the terminal device to perform joint measurement of multiple channels. In addition, in the method shown in Figure 4, N fields are added to the CSI reporting configuration, or N fields are added to N CSI sub-reporting configurations, where each CSI reporting sub-configuration includes one field. By adding new fields to the CSI reporting sub-configuration, better compatibility with existing standards is achieved, that is, there is no need to make major changes to the CSI reporting sub-configuration in the existing standard, and the terminal device can perform joint measurement of N channels.

[0153] Based on the method shown in FIG4 , before step 401, the method may further include:

[0154] The terminal device sends channel measurement capability information to the network device.

[0155] Accordingly, the network device receives the channel measurement capability information from the terminal device.

[0156] The channel measurement capability information is used by the network device to determine the CSI reporting configuration.

[0157] It should be understood that the channel measurement capability information of the terminal device may include the channel joint measurement capability information of the terminal device.

[0158] Among them, the channel joint measurement capability information includes one or more of the following: the maximum number of carriers supported by the terminal device for channel joint measurement (for example, maxNumberBandsPerMeasuredBandCombination), the frequency band combination information supported by the terminal device for channel joint measurement (for example, SupportedMeasuredBandCombination), the maximum total bandwidth number supported by the terminal device for channel joint measurement (for example, maxBandwidthPerMeasuredBandCombination), and the maximum number of ports supported by the terminal device for channel joint measurement (for example, maxNumberTxPortsPerMeasuredBandCombination).

[0159] The network device determines a CSI reporting configuration based on the channel joint measurement capability of the terminal device. The value of N in the N fields (the number of fields is equal to the number of carriers) in the CSI reporting configuration, the frequency band combination between the N carriers corresponding to the N fields, the maximum total bandwidth of the N carriers corresponding to the N fields, and the maximum number of ports corresponding to the N carriers must meet the channel joint measurement capability of the terminal device.

[0160] Based on the method shown in FIG. 4 , before step 403 , the method may further include:

[0161] The terminal device receives a first signaling, where the first signaling is used to instruct the terminal device to determine a sub-band granularity for channel measurement based on a total bandwidth of N carriers.

[0162] Optionally, the total bandwidth of the N carriers may refer to the sum of the bandwidths of N BWPs corresponding to the N carriers.

[0163] The first signaling may be sent by the network device to the terminal device before step 403, or the first signaling may be sent to the terminal device before the terminal device obtains the CSI in step 402, or the first signaling may be sent to the terminal device during step 402.

[0164] In step 402, the terminal device obtains CSI according to the CSI resource configuration, which may include:

[0165] The terminal device determines the sub-band granularity of the channel measurement according to the first signaling;

[0166] The terminal device obtains CSI based on the subband granularity and CSI reporting configuration.

[0167] It should be understood that the subband granularity is determined based on the total bandwidth of the N carriers, not the subband granularity corresponding to the bandwidth of each of the N carriers. The terminal device determines the subband granularity based on the total bandwidth of the N carriers and obtains the CSI based on the CSI reporting configuration. Compared with the terminal device determining the N subband granularity based on the bandwidth of each of the N carriers and configuring and obtaining the CSI based on the CSI reporting, it can reduce the number of subbands during channel measurement. The processing complexity of the terminal device when measuring the channel is positively correlated with the number of subbands, thereby reducing the complexity of the terminal device processing.

[0168] Next, we will use CSI-ReportConfig as an example for CSI reporting configuration, CSI-ResourceConfig as an example for CSI resource configuration, the carrier field as an example for fields associated with the CSI resource configuration included in the CSI reporting configuration, CSI-ReportSubConfig as an example for CSI reporting subconfiguration, and CSI-MeasurementResourceGroup as an example for CSI measurement resource group. Based on the method shown in Figure 4 above, combined with the following examples, we will describe in detail a resource configuration method provided by an embodiment of the present application.

[0169] Example 1: The network device sends a CSI-ReportConfig to the terminal device. The CSI-ReportConfig includes N carrier fields and indication information of N CSI-ResourceConfigs (such as the index, sequence number or identifier of the CSI-ResourceConfig, etc.), where the N carrier fields are used to indicate the N carriers associated with the CSI-ResourceConfig indicated by the indication information of the N CSI-ResourceConfigs, where N is a positive integer greater than 1. The terminal device obtains CSI based on the N CSI-ResourceConfigs and sends the CSI to the network device.

[0170] Example 2: The network device sends a CSI-ReportConfig to the terminal device. The CSI-ReportConfig includes N CSI-ReportSubConfigs. The N CSI-ReportSubConfigs include N carrier fields and indication information of N CSI-ResourceConfigs. The N carrier fields, N CSI-ReportSubConfigs, and indication information of N CSI-ResourceConfigs correspond one to one. The N carrier fields are used to indicate the N carriers associated with the CSI-ResourceConfig indicated by the indication information of the N CSI-ResourceConfigs. The terminal device obtains CSI based on the N CSI-ResourceConfigs and sends the CSI to the network device.

[0171] Example 3: The network device sends a CSI-ReportConfig to the terminal device, wherein the CSI-ReportConfig includes N CSI-ReportSubConfigs and at least one CSI-MeasurementResourceGroup. The CSI-ReportConfig also includes indication information of N CSI-ResourceConfigs, or each CSI-ReportSubConfig also includes indication information of a corresponding CSI-ResourceConfig. The N CSI-ReportSubConfigs include N carrier fields, and the N carrier fields are used to indicate the N carriers where the N CSI-ResourceConfigs associated with the N CSI-ReportSubConfigs are located, where N is a positive integer greater than 1. The N CSI-ResourceConfigs include M CSI-MeasurementResources. The at least one CSI-MeasurementResourceGroup includes m CSI-MeasurementResources among the M CSI-MeasurementResources, and the m CSI-MeasurementResources correspond to the N carriers, where M≥m≥N. The terminal device performs channel measurement on the N carriers according to the N CSI-ReportSubConfigs and the m CSI-MeasurementResources in the at least one CSI-MeasurementResourceGroup to obtain CSI, and sends the CSI to the network device.

[0172] Example 4: A network device sends a CSI-ReportConfig to a terminal device. The CSI-ReportConfig includes N CSI-ReportSubConfigs, each of which includes N carrier fields and N' CSI-MeasurementResourceGroups, where N is a positive integer greater than 1 and N' is a positive integer greater than or equal to N. The N carrier fields correspond one-to-one to the N CSI-ReportSubConfigs. The N' CSI-MeasurementResourceGroups include m different CSI-MeasurementResources, each of which is part or all of the M CSI-MeasurementResources. The M CSI-MeasurementResources are CSI-MeasurementResources included in the N CSI-ResourceConfigs associated with the N carriers, where M ≥ m ≥ N. Each of the N CSI-ReportSubConfigs includes at least one CSI-MeasurementResourceGroup, that is, the CSI-MeasurementResource in the CSI-MeasurementResourceGroup included in each CSI-ReportSubConfig corresponds to the same carrier indicated by the carrier field.

[0173] Example 5: A network device sends a CSI-ReportConfig to a terminal device. The CSI-ReportConfig includes at least one CSI-MeasurementResourceGroup and N carrier fields. The N carrier fields correspond one-to-one to the N CSI-ResourceConfigs. The N CSI-ResourceConfigs include M CSI-MeasurementResources, and the at least one CSI-MeasurementResourceGroup includes m CSI-MeasurementResources of the M CSI-MeasurementResources. The m CSI-MeasurementResources correspond to the N CSI-ResourceConfigs, and M ≥ m ≥ N. The m CSI-MeasurementResources are used by the terminal device to perform channel measurement on the associated N carriers. Where N is a positive integer greater than 1, and M is a positive integer greater than or equal to N.

[0174] For Example 1

[0175] The CSI-ReportConfig includes N carrier fields and indication information of N CSI-ResourceConfigs, wherein the N carrier fields correspond one-to-one to the indication information of the N CSI-ResourceConfigs, and the N carrier fields are used to indicate the N carriers where the N CSI-ResourceConfigs are located, where N is a positive integer greater than 1.

[0176] Assume that the CSI-ReportConfig includes a carrier field (e.g., carrier#1), and the carrier#1 field is used to indicate carrier#1 associated with CSI-ResourceConfig#1. The CSI-ReportConfig may be expressed as follows:

[0177] Among them, resourcesForChannelMeasurement#1 represents the identifier (ID) of CSI-ResourceConfig#1 used for channel measurement. It can be seen that in this example, the indication information of CSI-ResourceConfig is the ID of the CSI-ResourceConfig.

[0178] Assume that the CSI-ReportConfig includes N carrier fields, and the N carrier fields are used to indicate the N carriers where the N CSI-ResourceConfigs are located. The CSI-ReportConfig may be expressed as follows:

[0179] resourcesForChannelMeasurement#1…resourcesForChannelMeasurement#N represent the IDs of N CSI-ResourceConfigs, CSI-ResourceConfig#1…CSI-ResourceConfig#N, used for channel measurement.

[0180] It should be understood that the N carrier fields may be a set / list in the CSI-ReportConfig, and the CSI-ReportConfig may be expressed as follows:

[0181] Wherein, maxNrofcarrier indicates the maximum number of carrier fields that can be configured by the network device, for example, maxNrofcarrier=N. maxNrof resourcesForChannelMeasurement indicates the maximum number of CSI-ResourceConfigs for channel measurement, for example, maxNrof resourcesForChannelMeasurement=N.

[0182] It should be understood that, assuming that CSI-ReportConfig includes three carrier fields, namely carrier#1, carrier#2, and carrier#3. Carrier#1 corresponds to CSI-ResourceConfig#1, carrier#2 corresponds to CSI-ResourceConfig#2, and carrier#3 corresponds to CSI-ResourceConfig#3. That is, carrier#1 is used to indicate that the carrier associated with CSI-ResourceConfig#1 is carrier#1, carrier#2 is used to indicate that the carrier associated with CSI-ResourceConfig#2 is carrier#2, and carrier#3 is used to indicate that the carrier associated with CSI-ResourceConfig#3 is carrier#3. Among them, resourcesForChannelMeasurement includes the IDs corresponding to CSI-ResourceConfig#1, CSI-ResourceConfig#2, and CSI-ResourceConfig#3.

[0183] For Example 2

[0184] The CSI-ReportConfig includes N CSI-ReportSubConfigs, each of which includes N carrier fields and indication information of N CSI-ResourceConfigs. The N carrier fields, the indication information of the N CSI-ResourceConfigs, and the N CSI-ReportSubConfigs correspond one to one. The N carrier fields are used to indicate the N carriers on which the N CSI-ResourceConfigs associated with the N CSI-ReportSubConfigs are located. N is a positive integer greater than 1.

[0185] Assume that the CSI-ReportConfig includes CSI-ReportSubConfig#1…CSI-ReportSubConfig#N, and the CSI-ReportSubConfig#1 includes a carrier field, for example, carrier#1…carrier#N, respectively. The carrier#1 is used to indicate the carrier#1 associated with the CSI-ResourceConfig#1 associated with the CSI-ReportSubConfig#1, and the carrier#N is used to indicate the carrier#N associated with the CSI-ResourceConfig#N associated with the CSI-ReportSubConfig#N.

[0186] It should be understood that the representation of carrier#1 in the embodiments of this application is merely for the purpose of aligning with CSI-ReportSubConfig#1, CSI-ResourceConfig#1, etc., and does not limit the carrier field in this application. For example, in actual applications, carrier#1…carrier#N are all represented as carriers.

[0187] For example, the CSI-ReportConfig includes N CSI-ReportSubConfigs, such as CSI-ReportSubConfig#1…CSI-ReportSubConfig#N. The CSI-ReportConfig may be expressed as follows:

[0188] The N CSI-ReportSubConfigs include N carrier fields, and the N carrier fields correspond one-to-one to the N CSI-ReportSubConfigs.

[0189] For example, CSI-ReportSubConfig#1 includes a carrier field, such as carrier#1, which is used to indicate carrier#1 associated with the CSI-ResourceConfig contained in CSI-ReportSubConfig#1. The CSI-ReportSubConfig#1 may be expressed as follows:

[0190] It should be understood that the expression of the carrier field included in the CSI-ReportSubConfig is similar to that of the carrier included in the above-mentioned CSI-ReportSubConfig#1, and is not listed here one by one.

[0191] It should also be understood that the N CSI-ReportSubConfigs may be a set / list in the CSI-ReportConfig, and may be expressed as follows:

[0192] Wherein, maxNrofReportSubConfig represents the maximum number of reporting sub-configurations that can be configured by the network device, and the maxNrofReportSubConfig is greater than or equal to N.

[0193] It should be understood that in the specific manifestation that the above CSI-ReportConfig includes N CSI-ReportSubConfigs, the N CSI-ReportSubConfigs can be represented in the form of a set / list as described above, or can also be represented in the form of one-to-one enumeration, which is not limited in this application.

[0194] For Example 3

[0195] The CSI-ReportConfig includes N CSI-ReportSubConfigs and at least one CSI-MeasurementResourceGroup. The CSI-ReportConfig also includes indication information of N CSI-ResourceConfigs, or each CSI-ReportSubConfig also includes indication information of a corresponding CSI-ResourceConfig. The N CSI-ReportSubConfigs include N carrier fields, and the N carrier fields are used to indicate the N carriers associated with the N CSI-ResourceConfigs associated with the N CSI-ResourceConfigs. The N CSI-ResourceConfigs include M CSI-MeasurementResources, and the at least one CSI-MeasurementResourceGroup includes m CSI-MeasurementResources among the M CSI-MeasurementResources, and the m CSI-MeasurementResources correspond to the N carriers, where M≥m≥N. The terminal device performs channel measurement on the N carriers according to the N CSI-ReportSubConfigs and the m CSI-MeasurementResources in the at least one CSI-MeasurementResourceGroup.

[0196] It should be understood that the interval between the m CSI-MeasurementResources in time slots is less than or equal to X time slots, where X is a positive integer. The channels of the carriers associated with the m CSI-MeasurementResources are highly correlated within X time slots (for example, the correlation between the channel of the first time slot and the channel of the Xth time slot within X time slots is greater than or equal to 0.99). The specific value of X is not limited in this application.

[0197] When the interval between any two or more CSI-MeasurementResources in the time slot is equal to 0, it means that the CSI-MeasurementResources are in the same time slot; when the interval between any two or more CSI-MeasurementResources in the time slot is not equal to 0, it means that the CSI-MeasurementResources are not in the same time slot and are separated by X time slots.

[0198] Assume that the CSI-ReportConfig includes two CSI-ReportSubConfigs (for example, CSI-ReportSubConfig#1 and CSI-ReportSubConfig#2) and one CSI-MeasurementResourceGroup (for example, CSI-MeasurementResourceGroup#1). The CSI-ReportSubConfig#1 includes carrier#1, which is used to indicate carrier#1 associated with CSI-ReportSubConfig#1; the CSI-ReportSubConfig#2 includes carrier#2, which is used to indicate carrier#2 associated with CSI-ReportSubConfig#2. CSI-MeasurementResourceGroup#1 includes three CSI-MeasurementResources (e.g., CSI-MeasurementResource#1, CSI-MeasurementResource#2, and CSI-MeasurementResource#3), where CSI-MeasurementResource#1 corresponds to CSI-ResourceConfig#1, CSI-MeasurementResource#2 corresponds to CSI-ResourceConfig#1, and CSI-MeasurementResource#3 corresponds to CSI-ResourceConfig#2. The terminal device determines, based on CSI-ReportSubConfig#1, CSI-ReportSubConfig#2, and CSI-MeasurementResourceGroup#1, to perform channel measurement on carrier#1 using CSI-MeasurementResource#1 and CSI-MeasurementResource#2, and to perform channel measurement on carrier#2 using MeasurementResource#3.

[0199] For example, the CSI-ReportConfig includes N CSI-ReportSubConfigs (such as CSI-ReportSubConfig#1...CSI-ReportSubConfig#N) and at least one CSI-MeasurementResourceGroup. The CSI-ReportConfig may be expressed as follows:

[0200] The CSI-MeasurementResourceGroupSet includes m CSI-MeasurementResources, and the m CSI-MeasurementResources are part or all of M CSI-MeasurementResources, and the M CSI-MeasurementResources are configured by a system or a network device.

[0201] It should be understood that the CSI-ReportSubConfig and CSI-MeasurementResourceGroup included in the above CSI-ReportConfig can be represented in the form of a set / list, or can be represented in the form of one-to-one enumeration, which is not specifically limited in this application.

[0202] For example, CSI-ReportSubConfig#1 includes a carrier field (e.g., carrier#1), which is used to indicate carrier#1 associated with CSI-ResourceConfig#1 associated with CSI-ReportSubConfig#1. Optionally, the CSI-ResourceConfig may be included in CSI-ReportConfig or CSI-ReportSubConfig, which is not limited in this application.

[0203] It should be understood that when the CSI-ResourceConfig indication information (such as the ID of the CSI-ResourceConfig) is included in the CSI-ReportConfig, the CSI-ReportSubConfig#1 does not include the ID of the CSI-ResourceConfig. The CSI-ReportConfig is represented as follows:

[0204] The CSI-ReportConfig includes one or more CSI-MeasurementResourceGroups, that is, the CSI-MeasurementResourceGroupSet includes one or more CSI-MeasurementResourceGroups. The CSI-MeasurementResources included in the one or more CSI-MeasurementResourceGroups come from the CSI-MeasurementResources included in the CSI-ResourceConfig in the CSI-ReportConfig.

[0205] It should be understood that the CSI-ReportSubConfig and CSI-ResourceConfig included in the CSI-ReportConfig can be represented in a list / set manner, or can also be represented in a one-to-one enumeration manner, which is not specifically limited in this application.

[0206] The CSI-ReportSubConfig#1 may be expressed as follows:

[0207] It should be understood that when the indication information (such as the ID of the CSI-ResourceConfig) is included in CSI-ReportSubConfig#1, the CSI-ReportConfig does not include the ID of the CSI-ResourceConfig. The CSI-ReportSubConfig#1 may be expressed as follows:

[0208] The CSI-MeasurementResourceGroup#1 may be expressed as follows:

[0209] It should be understood that the CSI-MeasurementResource included in CSI-MeasurementResourceGroup#1 can be represented by the above-mentioned list / set, or can be represented by enumerating one by one, and this application does not make any specific limitation on this.

[0210] Here, maxNrofMeasurementResources represents the maximum number of CSI-MeasurementResources included in the CSI-MeasurementResourceGroup, and the maxNrofMeasurementResourceSet is greater than or equal to 1.

[0211] For Example 4

[0212] The CSI-ReportConfig includes N CSI-ReportSubConfigs, each of which includes N carrier fields and indication information for N CSI-ResourceConfigs. There is a one-to-one correspondence between the N CSI-ReportSubConfigs, the N carrier fields, and the indication information for the N CSI-ResourceConfigs. The N CSI-ReportSubConfigs also include N' CSI-MeasurementResourceGroups, each of which includes at least one CSI-MeasurementResourceGroup, where N' is a positive integer greater than or equal to N. The N' CSI-MeasurementResourceGroups include m different CSI-MeasurementResources, each of which is part or all of the M CSI-MeasurementResources. The M CSI-MeasurementResources are CSI-MeasurementResources included in the N CSI-ResourceConfigs associated with the N carriers, where M ≥ m ≥ N. Each of the N CSI-ReportSubConfigs includes at least one CSI-MeasurementResourceGroup, that is, the CSI-MeasurementResource in the CSI-MeasurementResourceGroup included in each CSI-ReportSubConfig is associated with the same carrier indicated by the carrier field.

[0213] It should be understood that the interval between the m CSI-MeasurementResources in time slots is less than or equal to X time slots, where X is a positive integer. The channels of the carriers associated with the m CSI-MeasurementResources are highly correlated within X time slots (for example, the correlation between the channel of the first time slot and the channel of the Xth time slot within X time slots is greater than or equal to 0.99). The specific value of X is not limited in this application.

[0214] When the interval between any two or more CSI-MeasurementResources in the time slot is equal to 0, it means that the CSI-MeasurementResources are in the same time slot; when the interval between any two or more CSI-MeasurementResources in the time slot is not equal to 0, it means that the CSI-MeasurementResources are not in the same time slot and are separated by X time slots.

[0215] Assume that the CSI-ReportConfig includes CSI-ReportSubConfig#1…CSI-ReportSubConfig#N. The CSI-ReportSubConfig#1 includes a carrier field, a CSI-ResourceConfig identification field, and a CSI-MeasurementResourceGroupSet field, such as carrier#1 and CSI-MeasurementResourceGroupSet. The carrier#1 is used to indicate the carrier#1 associated with the CSI-ResourceConfig#1 associated with the CSI-ResourceConfig#1. The MeasurementResourceGroupSet contains only one MeasurementResourceGroup (e.g., CSI-MeasurementResourceGroup#1), and the CSI-MeasurementResourceGroup#1 includes CSI-MeasurementResource#1 and CSI-MeasurementResource#2.

[0216] For example, the CSI-ReportConfig includes N CSI-ReportSubConfigs, such as CSI-ReportSubConfig#1…CSI-ReportSubConfig#N. The CSI-ReportConfig may be expressed as follows:

[0217] It should be understood that the N CSI-ReportSubConfigs included in the CSI-ReportConfig can be represented by enumerating them one by one as described above, or can be represented by a list / set, which is not specifically limited in this application.

[0218] The N CSI-ReportSubConfigs include N carrier fields, and the N carriers correspond one-to-one to the N CSI-ReportSubConfigs.

[0219] For example, CSI-ReportSubConfig#1 includes a carrier (such as carrier#1) and a CSI-MeasurementResourceGroupSet. The CSI-MeasurementResourceGroupSet may contain multiple CSI-MeasurementResourceGroups. The CSI-ReportSubConfig#1 may be expressed as follows:

[0220] It should be understood that the CSI-MeasurementResourceGroup included in the CSI-ReportSubConfig may be represented by a list / set as described above, or may be represented by enumerating them one by one, which is not specifically limited in this application.

[0221] The N CSI-ReportSubConfigs include N' CSI-MeasurementResourceGroups, each of the N CSI-ReportSubConfigs includes at least one CSI-MeasurementResourceGroup, and N'≥N. The N' CSI-MeasurementResourceGroups include m CSI-MeasurementResources.

[0222] For example, the CSI-MeasurementResourceGroup#1 includes CSI-MeasurementResource#1 and CSI-MeasurementResource#2. The expression of the CSI-MeasurementResourceGroup#1 may be as follows:

[0223] It should be understood that the CSI-MeasurementResource included in the CSI-MeasurementResourceGroup can be represented by a list / set as described above, or can be represented by enumerating one by one, and this application does not make any specific limitation on this.

[0224] Here, maxNrofMeasurementResourceSet indicates the maximum number of CSI-MeasurementResources included in the CSI-MeasurementResourceGroup.

[0225] For Example 5

[0226] The CSI-ReportConfig includes at least one CSI-MeasurementResourceGroup and N carrier fields. The N carrier fields correspond one-to-one to the N CSI-ResourceConfigs, the N CSI-ResourceConfigs include M CSI-MeasurementResources, and the at least one CSI-MeasurementResourceGroup includes m CSI-MeasurementResources of the M CSI-MeasurementResources. The m CSI-MeasurementResources correspond to the N CSI-ResourceConfigs, and M ≥ m ≥ N. The m CSI-MeasurementResources are used by the terminal device to perform channel measurement on the associated N carriers. N is a positive integer greater than 1, and M is a positive integer greater than or equal to N.

[0227] For example, the CSI-ReportConfig includes a CSI-MeasurementResourceGroup (such as CSI-MeasurementResourceGroup#1) and N carrier fields. The CSI-ReportConfig may be expressed as follows:

[0228] The CSI-ReportConfig includes one or more CSI-MeasurementResourceGroups, that is, the CSI-MeasurementResourceGroupSet includes one or more CSI-MeasurementResourceGroups.

[0229] It should be understood that the above-mentioned CSI-ReportConfig includes multiple CSI-MeasurementResourceGroups and N carrier fields. In the specific expression of the CSI-ReportConfig, the N carrier fields can be enumerated one by one as shown above, or can also be represented in the form of a set / list. The CSI-MeasurementResourceGroup can be represented in the form of a set / list as shown above, or can also be represented in the form of one-to-one enumeration. This application does not limit this.

[0230] The CSI-MeasurementResourceGroupSet includes m CSI-MeasurementResources, and the CSI-MeasurementResourceGroup is expressed as follows:

[0231] It should be understood that the CSI-MeasurementResourceGroupSet includes m CSI-MeasurementResources, and the m CSI-MeasurementResources can be represented in the form of the above set / list, or the m CSI-MeasurementResources can be listed one by one. For details, please refer to the example in Example 1.

[0232] It should be understood that in Examples 1 to 5 of the present application, the terminal device uses the m CSI-MeasurementResources to perform channel measurement on N carriers, and the interval between the CSI-MeasurementResources in the m CSI-MeasurementResources in time slots is less than or equal to X time slots, where X is a positive integer. The channels of the carriers associated with the m CSI-MeasurementResources are highly correlated within X time slots (for example, the correlation between the channel of the first time slot within X time slots and the channel of the Xth time slot is greater than or equal to 0.99). The specific value of X is not limited in this application.

[0233] When the interval between any two or more CSI-MeasurementResources in the time slot is equal to 0, it means that the CSI-MeasurementResources are in the same time slot; when the interval between any two or more CSI-MeasurementResources in the time slot is not equal to 0, it means that the CSI-MeasurementResources are not in the same time slot and are separated by X time slots.

[0234] It should also be understood that the above Examples 1 to 5 are merely illustrative of different situations of CSI reporting configuration and the manifestations in different situations in this application. Of course, the CSI reporting configuration may also have other situations or other manifestations obtained by combining the above Examples 1 to 5, which will not be listed one by one in this application.

[0235] Based on the introduction in Examples 1 to 5 above, after the terminal device receives the CSI-ReportConfig from the network device, the terminal device obtains CSI according to the N CSI-ResourceConfigs determined by the CSI-ReportConfig, where the CSI is the CSI of the N carriers associated with the N CSI-ResourceConfigs.

[0236] Among them, the terminal device performs channel measurement on N carriers associated with the N CSI-ResourceConfigs based on the N CSI-ResourceConfigs.

[0237] Assume that a terminal device uses three CSI-ResourceConfigs: CSI-ResourceConfig#1, CSI-ResourceConfig#2, and CSI-ResourceConfig#3. The CSI-MeasurementResources corresponding to CSI-ResourceConfig#1 are CSI-MeasurementResource#1-1 and CSI-MeasurementResource#1-2; the CSI-MeasurementResources corresponding to CSI-ResourceConfig#2 are CSI-MeasurementResource#2-1, CSI-MeasurementResource#2-2, and CSI-MeasurementResource#2-3; and the CSI-MeasurementResource corresponding to CSI-ResourceConfig#3 is CSI-MeasurementResource#3-1. Based on the carrier#1, carrier#2, and carrier#3 fields, the terminal device determines that the carriers associated with CSI-ResourceConfig#1, CSI-ResourceConfig#2, and CSI-ResourceConfig#3 are carrier#1, carrier#2, and carrier#3, respectively.

[0238] The terminal device obtains CSI according to CSI-ResourceConfig#1, CSI-ResourceConfig#2, and CSI-ResourceConfig#3, including: the terminal device performs channel measurement on carrier #1 according to CSI-MeasurementResource#1-1 and CSI-MeasurementResource#1-2, performs channel measurement on carrier #2 according to CSI-MeasurementResource#2-1, CSI-MeasurementResource#2-2, and CSI-MeasurementResource#2-3, and performs channel measurement on carrier #3 according to CSI-MeasurementResource#3-1. The measurement results of carrier #1, carrier #2, and carrier #3 by the terminal device can be carried in one CSI.

[0239] It should be understood that after the terminal device obtains CSI, it sends the CSI to the network device. Accordingly, the network device receives the CSI sent from the terminal device. For example, the terminal device determines M CSI-MeasurementResources based on N CSI-ResourceConfigs. The terminal device obtains CSI based on m of the M CSI-MeasurementResources and sends the CSI to the network device.

[0240] It should be understood that the above example is merely an illustration of the method shown in FIG. 4 and does not limit the method in FIG. 4 in any way.

[0241] It is understood that FIG4 and the above examples in the embodiments of the present application are merely intended to facilitate understanding of the embodiments of the present application by those skilled in the art, and are not intended to limit the embodiments of the present application to the specific scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or variations based on the method shown in FIG4 and the specific examples provided herein, and such modifications or variations also fall within the scope of the embodiments of the present application.

[0242] It can also be understood that some optional features in the various embodiments of the present application may not depend on other features in certain scenarios, and may also be combined with other features in certain scenarios, without limitation.

[0243] It can also be understood that the solutions in the various embodiments of the present application can be reasonably combined and used, and the explanations or descriptions of the various terms appearing in the embodiments can be referenced or explained with each other in the various embodiments, without limitation to this.

[0244] It can also be understood that the sizes of the various numerical serial numbers in the embodiments of the present application do not mean the order of execution, but are only distinguished for the convenience of description and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0245] It can also be understood that in the various embodiments of the present application, some message names are involved, such as the first information, etc. It should be understood that their naming does not limit the scope of protection of the embodiments of the present application.

[0246] It can also be understood that in the above-mentioned various method embodiments, the methods and operations implemented by the terminal device can also be implemented by components that can be formed by the terminal device (such as chips or circuits); in addition, the methods and operations implemented by the network device can also be implemented by components that can be formed by the network device (such as chips or circuits), without limitation. Corresponding to the methods given in the above-mentioned various method embodiments, the embodiments of the present application also provide corresponding devices, which include modules for executing the corresponding modules of the above-mentioned various method embodiments. The module can be software, hardware, or a combination of software and hardware. It can be understood that the technical features described in the above-mentioned various method embodiments are also applicable to the following device embodiments.

[0247] It should be understood that the network device or terminal device may perform some or all of the steps in the above embodiments, and these steps or operations are merely examples. The embodiments of the present application may also perform other operations or variations of various operations. In addition, the various steps may be performed in a different order than those presented in the above embodiments, and it is possible that not all of the operations in the above embodiments need to be performed.

[0248] A resource configuration method provided in an embodiment of the present application is described in detail above in conjunction with FIG4 . A communication device provided in an embodiment of the present application is described in detail below in conjunction with FIG5 to FIG7 . It should be understood that the description of the device embodiment corresponds to the description of the method embodiment. Therefore, for matters not described in detail, reference can be made to the method embodiment above. For the sake of brevity, some details are not repeated here.

[0249] Figure 5 is a schematic block diagram of a communication device provided in an embodiment of the present application. The device 500 includes a transceiver unit 510, which can be used to implement corresponding communication functions. The transceiver unit 510 can also be called a communication interface or a communication unit.

[0250] Optionally, the apparatus 500 may further include a processing unit 520 , which may be configured to perform data processing.

[0251] Optionally, the device 500 also includes a storage unit, which can be used to store instructions and / or data, and the processing unit 520 can read the instructions and / or data in the storage unit so that the device implements the actions of different terminal devices in the aforementioned method embodiments, for example, the actions of a network device or a terminal device.

[0252] The device 500 can be used to execute the actions performed by the network device or terminal device in the above method embodiments. In this case, the device 500 can be a network device or terminal device, or a component of the network device or terminal device. The transceiver unit 510 is used to execute the transceiver-related operations of the network device or terminal device in the above method embodiments, and the processing unit 620 is used to execute the processing-related operations of the network device or terminal device in the above method embodiments.

[0253] It should also be understood that the device 500 here is embodied in the form of a functional unit. The term "unit" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor or a group processor, etc.) and a memory for executing one or more software or firmware programs, a merging logic circuit and / or other suitable components that support the described functions. In an optional example, those skilled in the art will understand that the device 500 may be specifically a network device or a terminal device in the above-mentioned embodiment, and may be used to execute the various processes and / or steps corresponding to the network device or the terminal device in the above-mentioned method embodiments, or the device 500 may be specifically a network device or a terminal device in the above-mentioned embodiment, and may be used to execute the various processes and / or steps corresponding to the network device or the terminal device in the above-mentioned method embodiments. To avoid repetition, it will not be described here.

[0254] The apparatus 500 of each of the above-mentioned solutions has the function of implementing the corresponding steps performed by the network device or terminal device in the above-mentioned method, or the apparatus 500 of each of the above-mentioned solutions has the function of implementing the corresponding steps performed by the network device or terminal device in the above-mentioned method. The functions can be implemented by hardware, or can be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as the processing unit, can be replaced by a processor to respectively perform the sending and receiving operations and related processing operations in each method embodiment.

[0255] In addition, the transceiver unit 510 may also be a transceiver circuit (for example, may include a receiving circuit and a sending circuit), and the processing unit may be a processing circuit.

[0256] It should be noted that the apparatus in FIG5 may be a network element or device in the aforementioned embodiment, or may be a chip or chip system, such as a system on chip (SoC). The transceiver unit may be an input / output circuit or a communication interface; the processing unit may be a processor, microprocessor, or integrated circuit integrated on the chip. This is not limited here.

[0257] As shown in Figure 6, an embodiment of the present application provides another communication device 600. The device 600 includes a processor 610, which is coupled to a memory 620. The memory 620 is used to store computer programs or instructions and / or data. The processor 610 is used to execute the computer programs or instructions stored in the memory 620, or read the data stored in the memory 620, to perform the methods in the above method embodiments.

[0258] Optionally, there are one or more processors 610 .

[0259] Optionally, there are one or more memories 620 .

[0260] Optionally, the memory 620 is integrated with the processor 610 or provided separately.

[0261] 6 , the apparatus 600 further includes a transceiver 630 , which is configured to receive and / or transmit signals. For example, the processor 610 is configured to control the transceiver 630 to receive and / or transmit signals.

[0262] As a solution, the apparatus 600 is used to implement the operations performed by the network device or the terminal device in each of the above method embodiments.

[0263] For example, the processor 610 is configured to execute the computer program or instructions stored in the memory 620 to implement the relevant operations of the terminal device in each of the above method embodiments, for example, the terminal device in any of the embodiments shown in FIG. 4 , or the method of the terminal device in any of the embodiments shown in FIG. 4 .

[0264] It should be understood that the processor mentioned in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0265] It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory and / or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM). For example, RAM can be used as an external cache. By way of example and not limitation, RAM includes the following forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).

[0266] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) can be integrated into the processor.

[0267] It should also be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0268] As shown in FIG7 , an embodiment of the present application provides a chip system 700 . The chip system 700 (or also referred to as a processing system) includes a logic circuit 710 and an input / output interface 720 .

[0269] The logic circuit 710 may be a processing circuit in the chip system 700. The logic circuit 710 may be coupled to a storage unit and call instructions in the storage unit so that the chip system 700 can implement the methods and functions of the various embodiments of the present application. The input / output interface 720 may be an input / output circuit in the chip system 700, outputting information processed by the chip system 700 or inputting data or signaling information to be processed into the chip system 700 for processing.

[0270] As a solution, the chip system 700 is used to implement the operations performed by the network device or terminal device in the above various method embodiments.

[0271] For example, the logic circuit 710 is used to implement the processing-related operations performed by the terminal device in the above method embodiments, such as the processing-related operations performed by the terminal device in any one of the embodiments shown in Figure 4; the input / output interface 720 is used to implement the sending and / or receiving-related operations performed by the terminal device in the above method embodiments, such as the sending and / or receiving-related operations performed by the terminal device in any one of the embodiments shown in Figure 4.

[0272] An embodiment of the present application further provides a computer-readable storage medium on which computer instructions for implementing the methods executed by a network device or a terminal device in the above-mentioned method embodiments are stored.

[0273] For example, when the computer program is executed by a computer, the computer can implement the methods executed by the network device or the terminal device in each embodiment of the above method.

[0274] An embodiment of the present application also provides a computer program product, comprising instructions, which, when executed by a computer, implement the methods performed by the network device or the terminal device in the above-mentioned method embodiments.

[0275] The explanation of the relevant contents and beneficial effects of any of the above-mentioned devices can be referred to the corresponding method embodiments provided above, which will not be repeated here.

[0276] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0277] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. For example, the computer can be a personal computer, a server, or a network device, etc. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state disk (SSD)). For example, the aforementioned available medium includes, but is not limited to, various media that can store program code, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0278] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

[0279] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

Claims

1. A resource configuration method, applied to a first communication device, characterized in that: include: receiving a channel state information CSI reporting configuration from a network device, the CSI reporting configuration comprising N fields, the N fields corresponding one-to-one to N CSI resource configurations, a first field among the N fields being used to indicate a first carrier associated with a first CSI resource configuration among the N CSI resource configurations corresponding to the first field, the N CSI resource configurations being associated with N carriers, wherein N is a positive integer greater than 1; Acquire CSI according to the CSI reporting configuration; The CSI is sent to the network device.

2. The method according to claim 1, characterized in that The CSI reporting configuration includes N fields, including: The CSI reporting configuration further includes N CSI reporting sub-configurations, the N CSI reporting sub-configurations include the N fields, and the N fields correspond one-to-one to the N CSI reporting sub-configurations.

3. The method according to claim 1, characterized in that The CSI reporting configuration includes at least one CSI measurement resource group, the at least one CSI measurement resource group includes M CSI measurement resources, the M CSI measurement resources correspond to the N CSI resource configurations, M is a positive integer greater than or equal to N, The acquiring the CSI according to the CSI reporting configuration includes: Determining, according to the at least one CSI measurement resource group, the M CSI measurement resources corresponding to the N CSI resource configurations; The CSI is acquired according to the M CSI measurement resources.

4. The method according to claim 2, characterized in that: The CSI reporting configuration includes N CSI reporting sub-configurations, and the N CSI reporting sub-configurations correspond one-to-one to the N CSI resource configurations. The acquiring channel state information CSI according to the CSI reporting configuration includes: Determining the N CSI resource configurations according to the N CSI reporting sub-configurations; The CSI is acquired according to the N CSI resource configurations.

5. The method according to any one of claims 1 to 4, characterized in that The acquiring the CSI according to the CSI reporting configuration includes: Acquire the CSI according to M CSI measurement resources, where an interval between the M CSI measurement resources on time domain resources is less than or equal to a first threshold, where the first threshold is a positive integer, The M CSI measurement resources are associated with the N CSI resource configurations, and M is a positive integer greater than or equal to N.

6. The method according to any one of claims 1 to 5, characterized in that Before receiving the CSI reporting configuration from the network device, the method further includes: sending channel joint measurement capability information to the network device, where the channel joint measurement capability information is used by the network device to determine the CSI reporting configuration, The channel joint measurement capability information includes one or more of the following: The maximum number of carriers supporting channel joint measurement, the frequency band combination information supported by the terminal device for channel joint measurement, the maximum total bandwidth supported by the terminal device for channel joint measurement, and the maximum number of ports supported by the terminal device for channel joint measurement.

7. The method according to any one of claims 1 to 6, characterized in that The acquiring the CSI according to the CSI reporting configuration includes: Determine, according to the first signaling, a subband granularity for channel measurement, wherein the first signaling is used to instruct the terminal device to determine the subband granularity for channel measurement according to the total bandwidth of the N carriers; The CSI is acquired according to the subband granularity and the N CSI resource configurations.

8. A resource configuration method, applied to a second communication device, characterized in that: include: Sending a channel state information CSI reporting configuration to a terminal device, where the CSI reporting configuration includes N fields, where the N fields correspond one-to-one to N CSI resource configurations, where a first field among the N fields is used to indicate a first carrier associated with a first CSI resource configuration among the N CSI resource configurations corresponding to the first field, where the N CSI resource configurations are associated with N carriers, where N is a positive integer greater than 1; Receive CSI from the terminal device, where the CSI is obtained according to the CSI reporting configuration.

9. The method according to claim 8, characterized in that The CSI reporting configuration includes N fields, including: The CSI reporting configuration includes N CSI reporting sub-configurations, the N CSI reporting sub-configurations include the N fields, and the N fields correspond one-to-one to the N CSI reporting sub-configurations.

10. The method according to claim 8, characterized in that The CSI reporting configuration includes at least one CSI measurement resource group, the at least one CSI measurement resource group includes M CSI measurement resources, the M CSI measurement resources correspond to the N CSI resource configurations, M is a positive integer greater than or equal to N, The CSI is obtained according to the CSI reporting configuration, including: The CSI is acquired according to M CSI measurement resources, the M CSI measurement resources correspond to the N CSI resource configurations, and the N CSI resource configurations are determined according to the at least one CSI measurement resource group.

11. The method according to claim 9, characterized in that The CSI reporting configuration includes N CSI reporting sub-configurations, and the N CSI reporting sub-configurations correspond one-to-one to the N CSI resource configurations. The CSI is obtained according to the CSI reporting configuration, including: The CSI is acquired according to the N CSI resource configurations, and the N CSI resource configurations are determined according to the N CSI reporting subconfigurations.

12. The method according to any one of claims 8 to 11, characterized in that The CSI is obtained according to the CSI reporting configuration, including: The CSI is acquired according to M CSI measurement resources, and an interval between the M CSI measurement resources in the time domain resources is less than or equal to a first threshold, and the first threshold is a positive integer. The M CSI measurement resources are associated with the N CSI resource configurations, and M is a positive integer greater than or equal to N.

13. The method according to any one of claims 8 to 12, characterized in that Before sending the CSI reporting configuration to the terminal device, the method further includes: receiving channel joint measurement capability information from the terminal device, wherein the channel joint measurement capability information is used to determine the CSI reporting configuration, The channel joint measurement capability information includes one or more of the following: The maximum number of carriers supported by the terminal device for channel joint measurement, the frequency band combination information supported by the terminal device for channel joint measurement, the maximum total bandwidth supported by the terminal device for channel joint measurement, and the maximum number of ports supported by the terminal device for channel joint measurement.

14. The method according to any one of claims 8 to 13, characterized in that The method further comprises: Sending a first signaling to the terminal device, where the first signaling is used to instruct the terminal device to determine the sub-band granularity of channel measurement according to the total bandwidth of the N carriers, The CSI is acquired according to the subband granularity and the N CSI resource configurations.

15. A communication device, characterized in that: include: a transceiver unit, configured to receive a channel state information CSI reporting configuration from a network device, wherein the CSI reporting configuration includes N fields, wherein the N fields correspond one-to-one to N CSI resource configurations, wherein a first field among the N fields is used to indicate a first carrier associated with a first CSI resource configuration corresponding to the first field, and the N CSI resource configurations are associated with N carriers, wherein N is a positive integer greater than 1; A processing unit, configured to obtain CSI according to the N CSI resource configurations; The transceiver unit is further configured to send the CSI to the network device.

16. The device according to claim 15, characterized in that The CSI reporting configuration includes N CSI reporting sub-configurations, the N CSI reporting sub-configurations include the N fields, and the N fields correspond one-to-one to the N CSI reporting sub-configurations.

17. The device according to claim 15, characterized in that The CSI reporting configuration includes at least one CSI measurement resource group, the at least one CSI measurement resource group includes M CSI measurement resources, the M CSI measurement resources correspond to the N CSI resource configurations, M is a positive integer greater than or equal to N, The processing unit is further configured to determine, according to the at least one CSI measurement resource group, the M CSI measurement resources corresponding to the N CSI resource configurations; The processing unit is further configured to obtain the CSI according to the M CSI measurement resources.

18. The device according to claim 16, characterized in that The CSI reporting configuration includes N CSI reporting sub-configurations, and the N CSI reporting sub-configurations correspond one-to-one to the N CSI resource configurations. The processing unit is further configured to determine the N CSI resource configurations according to the N CSI reporting sub-configurations; The processing unit is further configured to obtain the CSI according to the N CSI resource configurations.

19. The device according to any one of claims 15 to 18, characterized in that The processing unit is further configured to obtain the CSI according to M CSI measurement resources, where an interval between the M CSI measurement resources on time domain resources is less than or equal to a first threshold, where the first threshold is a positive integer. The M CSI measurement resources are associated with the N CSI resource configurations, and M is a positive integer greater than or equal to N.

20. The device according to any one of claims 15 to 19, characterized in that Before the transceiver unit is used to receive the CSI reporting configuration from the network device, The transceiver unit is further configured to send channel joint measurement capability information to the network device, wherein the channel joint measurement capability information is used by the network device to determine the CSI reporting configuration. The channel joint measurement capability information includes one or more of the following: The maximum number of carriers supported by the terminal device for channel joint measurement, the frequency band combination information supported by the terminal device for channel joint measurement, the maximum total bandwidth supported by the terminal device for channel joint measurement, and the maximum number of ports supported by the terminal device for channel joint measurement.

21. The device according to any one of claims 15 to 20, characterized in that The processing unit is further used to determine the sub-band granularity of the channel measurement according to the first signaling, where the first signaling is used to instruct the terminal device to determine the sub-band granularity of the channel measurement according to the total bandwidth of the N carriers; The processing unit is further configured to obtain the CSI according to the subband granularity and the N CSI resource configurations.

22. A resource configuration device, characterized in that: include: A processing unit, configured to determine a channel state information CSI reporting configuration; a transceiver unit, configured to send the CSI reporting configuration to a terminal device, the CSI reporting configuration comprising N fields, the N fields corresponding one-to-one to N CSI resource configurations, a first field among the N fields being used to indicate a first carrier associated with a first CSI resource configuration among the N CSI resource configurations corresponding to the first field, the N CSI resource configurations being associated with N carriers, wherein N is a positive integer greater than 1; The transceiver unit is further used to receive CSI from the terminal device, where the CSI is obtained according to the CSI reporting configuration.

23. The device according to claim 22, characterized in that The CSI reporting configuration includes N fields, including: The CSI reporting configuration includes N CSI reporting sub-configurations, the N CSI reporting sub-configurations include the N fields, and the N fields correspond one-to-one to the N CSI reporting sub-configurations.

24. The device according to claim 22, characterized in that The CSI reporting configuration includes at least one CSI measurement resource group, the at least one CSI measurement resource group includes M CSI measurement resources, the M CSI measurement resources correspond to the N CSI resource configurations, M is a positive integer greater than or equal to N, The CSI is acquired according to M CSI measurement resources, the M CSI measurement resources correspond to the N CSI resource configurations, and the N CSI resource configurations are determined according to the at least one CSI measurement resource group.

25. The device according to claim 23, characterized in that The CSI reporting configuration includes N CSI reporting sub-configurations, and the N CSI reporting sub-configurations correspond one-to-one to the N CSI resource configurations. The CSI is acquired according to the N CSI resource configurations, and the N CSI resource configurations are determined according to the N CSI reporting subconfigurations.

26. The device according to any one of claims 22 to 25, characterized in that The CSI is acquired according to M CSI measurement resources, and an interval between the M CSI measurement resources in the time domain resources is less than or equal to a first threshold, and the first threshold is a positive integer. The M CSI measurement resources are associated with the N CSI resource configurations, and M is a positive integer greater than or equal to N.

27. The device according to any one of claims 22 to 26, characterized in that Before the transceiver unit is used to send the CSI reporting configuration to the terminal device, the transceiver unit is further used to receive channel joint measurement capability information from the terminal device, where the channel joint measurement capability information is used to determine the CSI reporting configuration. The channel joint measurement capability information includes one or more of the following: The maximum number of carriers supported by the terminal device for channel joint measurement, the frequency band combination information supported by the terminal device for channel joint measurement, the maximum total bandwidth supported by the terminal device for channel joint measurement, and the maximum number of ports supported by the terminal device for channel joint measurement.

28. The device according to any one of claims 22 to 27, characterized in that The transceiver unit is further used to send a first signaling to the terminal device, where the first signaling is used to instruct the terminal device to determine the sub-band granularity of the channel measurement according to the total bandwidth of the N carriers, The CSI is acquired according to the subband granularity and the N CSI resource configurations.

29. A communication device, characterized in that: include: A processor, configured to execute a computer program so that the communication device executes the method according to any one of claims 1 to 7, or so that the communication device executes the method according to any one of claims 8 to 14.

30. The device according to claim 29, characterized in that The communication device further comprises a memory, the memory being coupled to the processor, the memory storing the computer program.

31. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is run on a computer, the computer is caused to execute the method according to any one of claims 1 to 7, or the computer is caused to execute the method according to any one of claims 8 to 14.

32. A computer program product, characterized in that The computer program product comprises a computer program or instructions for executing the method according to any one of claims 1 to 7 , or a computer program or instructions for executing the method according to any one of claims 8 to 14 .

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