Communication method and device

Abstract

The invention discloses a communication method and device. The method can be applied to a scene of transmitting CSI-RS in an SBFD symbol. The communication method comprises: a second network device sending a configuration of a first resource and a configuration of a second resource to a first network device; the first network device sends the configuration of the first resource and the configuration of the second resource to the terminal device; and the terminal equipment determines the first information, and measures the CSI-RS in a third resource in the first resource according to the configuration of the second resource. The first resource is used for measuring the CSI of the second network equipment. The second resource is an SBFD resource in the first cell. The first information indicates that CSI measurement needs to be carried out according to the configuration of the second resource. The third resource does not comprise the uplink resource in the second resource. Through the method, the terminal equipment can determine that CSI measurement needs to be carried out according to the configuration of the second resource before the configuration of the second resource is used according to the first information, so that the method is simpler, the processing complexity of the terminal equipment is reduced, and the communication efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method and apparatus. Background Technology

[0002] In wireless communication systems, channel state information (CSI)-reference signal (CSI-RS) can be used to acquire channel state information, beam management, time and frequency tracking, or mobility management.

[0003] Subband Full Duplex (SBFD) is a new duplexing standard. SBFD divides a single carrier's frequency domain into non-overlapping uplink and downlink subbands, allowing data transmission and reception on separate subbands, thus achieving full-duplex operation at the base station. If CSI-RS is transmitted on SBFD symbols, it needs to be mapped to the downlink subband of the SBFD symbol, not the uplink subband. In other words, CSI-RS resources need to be punctured. How terminal equipment can better receive CSI-RS is a technical problem that urgently needs to be solved. Summary of the Invention

[0004] This application provides a communication method and apparatus that uses first information to indicate whether a terminal device should perform CSI-RS reception based on SBFD resources. This provides a simple decision-making method for the terminal device on whether to perform CSI measurements based on CSI-RS resources, which helps reduce the processing complexity of the terminal device and improve communication efficiency.

[0005] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0006] Firstly, a communication method is provided, which can be applied to a terminal-side device (also known as a terminal device). For example, the terminal device can be a terminal equipment or a module or unit for performing some functions of the terminal equipment, such as circuits or chip / chip system (e.g., a modem chip, also known as a baseband chip, or a system-on-chip (SoC) chip containing a modem core, or a system-in-package (SIP) chip) or other functional modules in the terminal equipment. Alternatively, the terminal device can be a logical node, logical module, or software module that implements all or part of the functions of the terminal equipment. For ease of description, the following example uses the application of this method to a terminal equipment.

[0007] The communication method includes: receiving configurations of a first resource and a second resource from a first network device; determining first information; and measuring CSI-RS using a third resource within the first resource according to the configuration of the second resource. The first resource is used for CSI measurement by the second network device. The second resource is an SBFD resource in a first cell. The first information indicates that CSI measurement is required according to the configuration of the second resource. The third resource does not include uplink resources within the second resource.

[0008] In this method, the first resource is the CSI-RS resource. Before performing CSI measurements based on the configuration of the second resource, the terminal device can determine whether CSI measurements need to be performed based on the configuration of the second resource, based on the first information. Compared to the method where the terminal device determines the first and second resources based on their configurations, and then determines whether CSI measurements need to be performed based on the second resource's configuration, this method is simpler, helps reduce the processing complexity of the terminal device, and can improve communication efficiency.

[0009] In one implementation, determining the first information includes: determining the first information when the configuration of the first resource includes the configuration of the second resource; or, determining the first information when the measurement object associated with the configuration of the first resource includes the second resource; or, determining the first information when the frequency point associated with the configuration of the first resource corresponds to the second resource.

[0010] The configuration of the first resource can be the configuration of a CSI-RS resource. "When the configuration of the first resource includes the configuration of the second resource, determine the first information" can be replaced with: "Determine that the configuration of the first resource includes the configuration of the second resource." "When the configuration of the first resource includes the configuration of the second resource, determine the first information" means that when the configuration of the first resource includes the configuration of the second resource, then there is first information, which is "The configuration of the first resource includes the configuration of the second resource." Similarly, determining the first information can also be replaced with any of the following descriptions: determining that the measurement object associated with the configuration of the first resource includes the second resource; or, determining that the frequency point associated with the configuration of the first resource corresponds to the second resource; or determining that the first resource (or CSI-RS resource) should be punched; or determining that the CSI-RS should be punched.

[0011] In one implementation, determining the first information includes: receiving a first field from a first network device, the first field indicating the first information.

[0012] In this scheme, the terminal device can determine from the first field received from the first network device that CSI measurement needs to be performed based on the configuration of the second resource. In other words, the terminal device can determine that CSI measurement needs to be performed based on the configuration of the second resource based on the explicit signaling instruction from the first network device, and then perform CSI-RS measurement on the third resource in the first resource. This eliminates the need for the terminal device to comprehensively determine whether CSI measurement needs to be performed based on the configuration of the first and second resources, simplifying the process and reducing the processing complexity of the terminal device.

[0013] Secondly, a communication method is provided, which can be applied to a network-side device (also called a network device). For example, the network device can be a network equipment, a component within the network equipment (e.g., a circuit, chip, or chip system), or a module or unit used to perform some or all of the functions of the network equipment, such as a central unit (CU), a distributed unit (DU), or a radio unit (RU). Alternatively, the network device can be a logical node, logical module, or software module that implements all or part of the functions of the network equipment. For ease of description, the following example illustrates the application of this method to a first network device.

[0014] The communication method includes: receiving configurations of a first resource and a second resource from a second network device, sending the configurations of the first resource and the second resource to a terminal device, and sending first information to the terminal device. The first resource is used for CSI measurement by the second network device, and the second resource is an SBFD resource in a first cell. The first information indicates that CSI measurement needs to be performed according to the configuration of the second resource. Alternatively, the method involves receiving the configurations of the first resource and the second resource from the second network device and sending the configurations of the first resource and the second resource to the terminal device, wherein the configuration of the first resource includes the configuration of the second resource, or the measurement object associated with the configuration of the first resource includes the second resource, or the frequency point associated with the configuration of the first resource corresponds to the second resource.

[0015] In this scheme, the first network device receives the configuration of the first resource and the configuration of the second resource from the second network device and forwards them to the terminal device. Considering that the first resource and the second resource may overlap, the first resource should be punched. In this case, the first network device can also send first information to the terminal device so that the terminal device explicitly needs to perform CSI measurement based on the second resource. Compared to the terminal device deciding whether to perform CSI measurement based on the second resource itself, this helps reduce the processing complexity of the terminal device. Alternatively, when the first network device forwards the configuration of the first resource and the configuration of the second resource to the terminal device, it can implicitly indicate to the terminal device that CSI measurement based on the second resource is required. For example, when the first network device sends the configuration of the first resource and the configuration of the second resource, it can send the configuration of the first resource to the terminal device, and the configuration of the first resource includes the configuration of the second resource, to implicitly indicate to the terminal device that CSI measurement based on the second resource is required. For another example, the first resource...

[0016] In one implementation, sending the first information to the terminal device includes: determining that the second resource and the first resource overlap, and then sending the first information to the terminal device.

[0017] Understandably, when the second resource and the first resource overlap, the first resource should be punched when the terminal device performs CSI measurements on the first resource. Therefore, the first network device determines that the second resource and the first resource overlap and sends the first information to the terminal device; when it determines that the second resource and the first resource do not overlap, it does not need to send the first information to the terminal device to save signaling overhead.

[0018] In one implementation, sending first information to a terminal device includes: receiving third information from a second network device, and sending the first information to the terminal device based on the third information; wherein the third information is used to indicate that the terminal device needs to perform CSI measurement according to the configuration of the second resource, or the third information indicates that the first information is sent to the terminal device, or the third information indicates that the second resource overlaps with the first resource.

[0019] In this scheme, if the first network device receives third information from the second network device, it sends the first information to the terminal device. It is clear that whether the first network device sends the first information to the terminal device is determined by the second network device. This is simpler than the first network device making its own decision, and helps reduce the processing complexity of the first network device.

[0020] In one implementation, sending the configuration of the second resource to the terminal device includes: determining that the second resource overlaps with the first resource, and sending the configuration of the second resource to the terminal device.

[0021] It is understandable that when the second resource overlaps with the first resource, the terminal device needs to perform CSI measurement based on the second resource; if the second resource does not overlap with the first resource, the terminal device does not need to perform CSI measurement based on the second resource, and naturally the first network device does not need to send the configuration of the second resource to the terminal device, so as to save signaling overhead.

[0022] In one implementation, sending the configuration of the second resource to the terminal device includes: receiving fourth information from the second network device, and sending the configuration of the second resource to the terminal device according to the fourth information; wherein the fourth information is used to indicate that the terminal device needs to perform CSI measurement according to the configuration of the second resource, or the fourth information indicates that the configuration of the second resource is sent to the terminal device, or the fourth information indicates that the second resource overlaps with the first resource.

[0023] In this scheme, if the first network device receives the fourth information from the second network device, it sends the configuration of the second resource to the terminal device. Whether the first network device sends the configuration of the second resource to the terminal device is determined by the second network device, which is simpler than the first network device making its own decision on whether to send the configuration of the second resource to the terminal device, and helps to reduce the processing complexity of the first network device.

[0024] In one implementation, the method further includes: sending a first request to a second network device, the first request being used to request third information.

[0025] The first request for requesting third information can be replaced with: the first request for requesting / determining whether to send first information to the terminal device. In this scheme, the first network device triggers the second network device to send third information through the first request, thereby reducing unnecessary signaling sent by the second network device.

[0026] In one implementation, the method further includes: sending a second request to a second network device, the second request being used to request fourth information.

[0027] The second request for requesting the fourth information can be replaced with: the second request for requesting / determining whether to send the configuration of the second resource to the terminal device. In this scheme, the first network device triggers the second network device to send the fourth information through the second request, thereby reducing unnecessary signaling sent by the second network device.

[0028] In one implementation, sending the configuration of the first resource to the terminal device includes: the terminal device supports CSI measurement on the SBFD resource, and sending the configuration of the first resource to the terminal device.

[0029] When the terminal device does not support CSI measurement on SBFD resources, the first network device does not need to forward the configuration of the first resource from the second network device to the terminal device, thereby reducing unnecessary signaling transmission.

[0030] Thirdly, a communication method is provided, which can be applied to a network-side device (also called a network device). For a detailed description of the network device, please refer to the second aspect above. For ease of description, the following example uses the application of this method to a second network device.

[0031] The communication method includes: sending the configuration of a first resource and the configuration of a second resource to a first network device, and sending CSI-RS via a third resource within the first resource. The first resource is used for CSI measurement by the second network device, and the second resource is the SBFD resource in the first cell. The third resource does not include the uplink resources within the second resource.

[0032] This scheme applies to CSI-RS transmissions occurring on SBFD resources. In this case, when the second network device sends CSI-RS, the first resource should be punctured. For example, the second network device should send CSI-RS on the third resource within the first resource. Compared to sending CSI-RS on the first resource, this reduces interference from CSI-RS on the uplink resources within the second resource, thus helping to improve the accuracy of CSI measurements.

[0033] In one implementation, the configuration of the first resource includes the configuration of the second resource; the measurement object associated with the configuration of the first resource includes the second resource; or, the frequency point associated with the configuration of the first resource corresponds to the second resource.

[0034] In one implementation, the method further includes: sending third information to a first network device; wherein the third information is used to indicate that the terminal device needs to perform CSI measurement according to the configuration of the second resource, or the third information indicates that the terminal device should send first information, or the third information indicates that the second resource overlaps with the first resource.

[0035] In one implementation, the method further includes: sending fourth information to a first network device; wherein the fourth information is used to indicate that the terminal device needs to perform CSI measurement according to the configuration of the second resource, or the fourth information indicates that the configuration of the second resource is sent to the terminal device, or the fourth information indicates that the second resource overlaps with the first resource.

[0036] The beneficial effects of the various implementation methods of the third aspect can be found in the aforementioned first or second aspect and their various implementation methods, and will not be repeated here.

[0037] Fourthly, a communication method is provided, which can be applied to a terminal device (also known as a terminal device). For details regarding the terminal device, please refer to the first aspect mentioned above. For ease of description, the following example uses the application of this method to a terminal device.

[0038] The communication method includes: receiving configurations of a first resource and a second resource from a first network device, determining second information, and performing CSI-RS measurements on the first resource according to the configuration of the first resource. The second information indicates that CSI measurements are not required based on the configuration of the second resource. The first resource is used for CSI measurements by the second network device, and the second resource is an SBFD resource in the first cell.

[0039] In this method, the first resource is the CSI resource. Before performing CSI measurements based on the configuration of the second resource, the terminal device can determine, based on the second information, that it is not necessary to perform CSI measurements based on the configuration of the second resource. Compared to the method where the terminal device determines whether CSI measurements need to be performed based on the configuration of the second resource based on both the first and second resources, this method is simpler and helps reduce the processing complexity of the terminal device.

[0040] In one implementation, determining the second information includes: determining the second information when the configuration of the first resource does not include the configuration of the second resource; determining the second information when the measurement object associated with the configuration of the first resource does not include the second resource; or determining the second information when the frequency point associated with the configuration of the first resource does not correspond to the second resource.

[0041] The configuration of the first resource can be a CSI-RS resource configuration. "When the configuration of the first resource does not include the configuration of the second resource, determine the second information" can be replaced with: "Determine that the configuration of the first resource does not include the configuration of the second resource." "When the configuration of the first resource does not include the configuration of the second resource, determine the second information" means that when the configuration of the first resource does not include the configuration of the second resource, then there is second information, which is "The configuration of the first resource does not include the configuration of the second resource." Similarly, "determine the second information" can also be replaced with any of the following descriptions: "Determine that the measurement object associated with the configuration of the first resource does not include the second resource"; or, "Determine that the frequency point associated with the configuration of the first resource does not correspond to the second resource"; or, "Determine that the first resource (or CSI-RS resource) should not be punched"; or "Determine that the CSI-RS should not be punched."

[0042] In one implementation, determining the second information includes: receiving a first field from a first network device, the first field indicating the second information.

[0043] In this scheme, the terminal device can determine from the first field received by the first network device that CSI measurement is not required based on the configuration of the second resource. In other words, the terminal device can determine that CSI measurement is not required based on the configuration of the second resource based on the explicit signaling indication from the first network device, and then perform CSI-RS measurement on the first resource. This eliminates the need for the terminal device to comprehensively determine whether CSI measurement is required based on the configuration of the second resource, simplifying the process and reducing the processing complexity of the terminal device.

[0044] Fifthly, embodiments of this application provide a communication device that has the function of implementing the behavior in any of the method examples of the first to fourth aspects described above. The beneficial effects can be found in the relevant descriptions of any of the first to fourth aspects, and will not be repeated here. This function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above-described functions.

[0045] In one possible design, the communication device includes corresponding means, modules, or units for performing the methods of any of the first to fourth aspects. These modules, units, or means can be implemented in software, hardware, or a combination of both. The communication device includes processing units and / or transceiver units that can perform the corresponding functions of the terminal device described in the above embodiments.

[0046] For example, these units can perform the corresponding functions of the terminal device in the first aspect described above. The transceiver module can be used to receive the configuration of the first resource and the configuration of the second resource from the first network device; the processing module can be used to determine the first information and, according to the configuration of the second resource, to measure CSI-RS in the third resource of the first resource. The first resource is used for CSI measurement of the second network device. The second resource is the SBFD resource in the first cell. The first information is used to indicate that CSI measurement needs to be performed according to the configuration of the second resource. The third resource does not include the uplink resource in the second resource. See the detailed description in the method example for further details; it will not be repeated here.

[0047] For example, these units can perform the corresponding functions of the first network device in the second aspect described above. The transceiver module can be used to receive the configuration of the first resource and the configuration of the second resource from the second network device, send the configuration of the first resource and the configuration of the second resource to the terminal device, and send first information to the terminal device. The first resource is used for CSI measurement of the second network device, and the second resource is the SBFD resource in the first cell. The first information is used to indicate that CSI measurement needs to be performed according to the configuration of the second resource. See the detailed description in the method examples for details, which will not be repeated here. Alternatively, the transceiver module can be used to receive the configuration of the first resource and the configuration of the second resource from the second network device, and send the configuration of the first resource and the configuration of the second resource to the terminal device. The configuration of the first resource includes the configuration of the second resource, or the measurement object associated with the configuration of the first resource includes the second resource, or the frequency point associated with the configuration of the first resource corresponds to the second resource. See the detailed description in the method examples for details, which will not be repeated here.

[0048] For example, these units can perform the corresponding functions of the second network device in the third aspect described above. The transceiver module can be used to send the configuration of the first resource and the configuration of the second resource to the first network device, and to send CSI-RS in the third resource of the first resource. The first resource is used for CSI measurement of the second network device, and the second resource is the SBFD resource in the first cell. The third resource does not include the uplink resource in the second resource. See the detailed description in the method examples for further details; it will not be repeated here.

[0049] For example, these units can perform the corresponding functions of the terminal device in the fourth aspect described above. The transceiver module can be used to receive the configuration of the first resource and the configuration of the second resource from the first network device; the processing module can be used to determine the second information and perform CSI-RS measurement on the first resource according to the configuration of the first resource. The second information indicates that CSI measurement is not required based on the configuration of the second resource. The first resource is used for CSI measurement of the second network device, and the second resource is the SBFD resource in the first cell. See the detailed description in the method example for further details; it will not be repeated here.

[0050] The processing unit is also called a processing module or processor; the transceiver unit is also called a transceiver module or transceiver. The transceiver unit can implement both sending and receiving functions. When the transceiver unit implements the sending function, it can be called a sending unit (sometimes also called a sending module); when the transceiver unit implements the receiving function, it can be called a receiving unit (sometimes also called a receiving module). The sending unit and the receiving unit can be the same functional unit, called the transceiver unit, which can implement both sending and receiving functions; or, the sending unit and the receiving unit can be different functional units, and the transceiver unit is a collective term for these functional units.

[0051] In one possible design, the processing unit includes a baseband device, and the transceiver unit includes a radio frequency device.

[0052] Sixthly, embodiments of this application provide a communication device, which includes a communication interface and a processor. The processor is configured to execute the methods in any of the first to fourth aspects and any implementation thereof. This application does not limit the specific type of processor. For example, the processor can be a baseband device, a central processing unit (CPU), or other specific integrated circuits. As another example, the processor can be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0053] Optionally, the communication device further includes a memory for storing computer programs (also referred to as code or instructions), data, etc. The processor is coupled to the memory and the communication interface. When the processor reads the computer program, data, etc., from the memory, the methods in any of the first to fourth aspects and any implementation thereof are executed.

[0054] In one design, the memory is located outside the communication device.

[0055] In one design, the memory is located within the communication device.

[0056] In one design, the processor and memory are integrated together.

[0057] In a seventh aspect, embodiments of this application provide a chip system including a processor and a communication interface for implementing the methods described in any of the first to fourth aspects. Optionally, the chip system further includes a memory. The memory stores a computer program (also referred to as code or instructions). The processor retrieves and executes the computer program from the memory, causing a device equipped with the chip system to perform the methods in any of the first to fourth aspects and any possible implementation thereof. The chip system may be composed of chips or may include chips and other discrete devices.

[0058] Eighthly, embodiments of this application provide a communication device including an input / output interface and logic circuitry. The input / output interface is used for inputting and / or outputting information. The input / output interface may be an interface circuit, an output circuit, an input circuit, a pin, or related circuitry, etc. The logic circuitry is used to execute the methods described in any of the first to fourth aspects.

[0059] The communication device in the eighth aspect can be a chip, the input circuit can be an input pin, the output circuit can be an output pin, and the logic circuit can be a transistor, gate circuit, flip-flop, and various other logic circuits. The input signal received by the input circuit can be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit can be, for example, but not limited to, output to a transmitter and transmitted by the transmitter. Furthermore, the input circuit and the output circuit can be the same circuit, which is used as both the input circuit and the output circuit at different times. This application does not limit the specific implementation of the input / output interface and the logic circuit.

[0060] In one implementation of the eighth aspect, when the communication device is a terminal device, the interface circuit can be a radio frequency processing chip in the terminal device, and the processing circuit can be a baseband processing chip in the terminal device. When the communication device is a network device, the interface circuit can be a radio frequency processing chip in the network device, and the processing circuit can be a baseband processing chip in the network device.

[0061] In specific implementation, the aforementioned communication device can be a terminal device. Alternatively, the communication device can be a device capable of supporting the terminal device in implementing the functions required by the methods provided in the first or fourth aspects; for example, the communication device can be a chip or chip system in the terminal device. Alternatively, the communication device can be a network device. Alternatively, the communication device can be a device capable of supporting the network device in implementing the functions required by the methods provided in the second or third aspects; for example, the communication device can be a chip or chip system in the network device. The chip can be a baseband chip and / or a radio frequency chip, and the chip system can be composed of chips or may include chips and other discrete components.

[0062] Ninthly, embodiments of this application provide a communication system, the communication system including a terminal device, a first network device, and a second network device. The terminal device is used to implement the function of the method described in the first aspect, the first network device is used to implement the function of the method described in the second aspect, and the second network device is used to implement the function of the method described in the third aspect. Alternatively, the communication system includes a terminal device, a first network device, and a second network device. The terminal device is used to implement the function of the method described in the fourth aspect.

[0063] In a tenth aspect, embodiments of this application provide a computer-readable storage medium for storing a computer program or instructions that, when executed, cause the methods described in any of the first to fourth aspects and any implementation thereof to be implemented.

[0064] Eleventhly, embodiments of this application also provide a computer program product containing instructions that, when run on a computer, cause the methods described in any of the first to fourth aspects and any of their implementations to be implemented.

[0065] The beneficial effects of the fifth to eleventh aspects and their implementation methods can be referenced to the beneficial effects of the first to fourth aspects and any one of their implementation methods. Attached Figure Description

[0066] Figure 1 This is a schematic diagram of the architecture of a communication system;

[0067] Figures 2A to 2C A diagram illustrating the partitioning of SBFD resources;

[0068] Figure 3 A diagram illustrating the process of punching holes in a resource;

[0069] Figure 4 A flowchart illustrating the communication method provided in an embodiment of this application;

[0070] Figure 5 A schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0071] Figure 6 This is another schematic diagram of the communication device provided in the embodiments of this application. Detailed Implementation

[0072] The technical solutions provided in the embodiments of this application can be applied to various communication systems, such as Long Term Evolution (LTE) communication systems, 5th Generation (5G) mobile communication systems / New Radio (NR) communication systems, or future mobile communication systems, or other similar communication systems. Other similar communication systems may include Wireless Fidelity (WIFI), Vehicle-to-Everything (V2X), Internet of Things (IoT) systems, and so on.

[0073] Please see Figure 1This illustration shows a communication system applicable to embodiments of this application. The communication system includes a wireless access network 100 and a core network 200. Optionally, the communication system may also include the Internet. Figure 1 (Using this as an example).

[0074] The wireless access network 100 may include at least one network device and at least one terminal device. For example, the wireless access network 100 includes two network devices, 110a and 110b, and terminal devices, such as 120a to 120j. Figure 1 The network architecture shown is merely illustrative; the number of terminal devices and / or network devices may be fewer or more. The communication system described in the embodiments of this application is intended to more clearly illustrate the technical solutions of the embodiments of this application and does not constitute a limitation on the communication system to which the embodiments of this application apply. For example, the communication system may also include other devices, such as wireless relay devices and wireless backhaul devices, etc. Figure 1 Not shown in the diagram. Those skilled in the art will recognize that, with the evolution of network architecture, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems. When applying the technical solutions of the embodiments of this application to other communication systems, the devices, components, modules, etc., in the embodiments can be replaced with corresponding devices, components, modules in other communication systems, without limitation.

[0075] In this embodiment, network equipment refers to (radio)access network ((R)AN) equipment / RAN node. In this embodiment, (R)AN and RAN are interchangeable. RAN can be a cellular system related to the 3rd generation partnership project (3GPP), such as a 5G / NR mobile communication system or a future-oriented evolution system. RAN can also be an open RAN (O-RAN or ORAN), a cloud radio access network (CRAN), a virtualized RAN (vRAN), a non-terrestrial network (NTN), etc. RAN can also be a communication system that integrates two or more of the above systems. RAN equipment can also be called a RAN node, RAN entity, or access node, etc.

[0076] In one possible scenario, a RAN node can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next-generation NodeB (gNB), or a base station in a future mobile communication system. RAN nodes can also be macro base stations, micro base stations, indoor stations, relay nodes, donor / host nodes, or radio controllers. RAN nodes can also be servers, wearable devices, vehicles, or in-vehicle equipment. For example, in V2X technology, the RAN node can be a roadside unit (RSU).

[0077] In another possible scenario, the RAN node can be a module or unit that performs some of the functions of the base station; or multiple RAN nodes can cooperate to assist terminal equipment in achieving wireless access, with different RAN nodes performing some of the functions of the base station. For example, the RAN node can be a CU, DU, or RU. The function of the CU can be implemented by a single entity or by different entities. For example, the function of the CU can be further divided, that is, the control plane and the user plane can be separated and implemented by different entities, namely the control plane CU entity (i.e., CU-control plane (CP) entity) and the user plane CU entity (i.e., CU-user plane (UP) entity). The CU-CP entity and the CU-UP entity can be coupled with the DU to jointly complete the function of the RAN node. The CU and DU can be set up separately or included in the same network element, such as in the baseband unit (BBU). Any of the units among the CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented by software modules, hardware modules, or a combination of software modules and hardware modules.

[0078] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples.

[0079] The CU and DU can be configured according to the protocol layer functions of the wireless network they implement: for example, the CU can be configured to implement the functions of the Packet Data Convergence Protocol (PDCP) layer and above (such as the Radio Resource Control (RRC) layer and / or the Service Data Adaptation Protocol (SDAP) layer); the DU can be configured to implement the functions of the protocol layers below the PDCP layer (such as the Radio Link Control (RLC) layer, the Medium Access Control (MAC) layer, and / or the Physical (PHY) layer). For specific descriptions of the above protocol layers, please refer to the relevant 3GPP technical specifications or the technical specifications of other applicable communication protocols.

[0080] The above division of the processing functions of CU and DU according to protocol layers is merely an example; other division methods are also possible, and this application does not limit this. For example, in one design, CU or DU can be further divided into processing functions with protocol layers. In one design, some functions of the RLC layer and the functions of the protocol layer above the RLC layer are located in the CU, while the remaining functions of the RLC layer and the functions of the protocol layer below the RLC layer are located in the DU.

[0081] In another possible design, the DU and RU collaborate to implement the PHY layer functionality, or, more specifically, a portion of the PHY layer functionality of the DU can be moved to the RU. A DU can be connected to one or more RUs. The functions of the DU and RU can be configured in various ways depending on the design. For example, the DU may be configured to implement baseband functions, and the RU may be configured to implement mid-RF functions. Alternatively, the DU may be configured to implement higher-level functions in the PHY layer, and the RU may be configured to implement lower-level functions in the PHY layer, or both lower-level and RF functions. Higher-level functions in the physical layer may include a portion of the physical layer's functionality closer to the MAC layer, and lower-level functions may include another portion of the physical layer's functionality closer to the mid-RF side. This application does not limit the specific functions of the DU and RU. The interface between the DU and RU can be called a fronthaul interface. In one design, the CU may not have a PDCP layer; for example, the CU may only include an RRC layer. The CU-CP may not have PDCP-C. The CU-UP may not have PDCP-U, or may not have a CU-UP. In one design, the DU may not have an RLC layer; for example, the DU may only have a MAC and a higher PHY layer.

[0082] When the RAN is O-RAN, it can also have artificial intelligence (AI) capabilities. For example, O-RAN includes an intelligent controller. The intelligent controller can be a non-real-time RAN intelligent controller (RIC / non-RT RIC / NRTRIC) or a near-real-time RAN intelligent controller (RIC / nRT RIC / nRT RIC). A non-real-time RIC can be used to implement non-real-time intelligent management of RAN functions, enabling workflows including model training and updates, and guiding applications / functions in the nRT RIC based on policies. A near-real-time RIC can be used to implement near-real-time intelligent management of the RAN. Through data collection and related operations on the E2 interface, near-real-time control and optimization of O-RAN modules and resources are achieved.

[0083] In this application embodiment, anything capable of data communication with a base station can be considered a terminal device. Terminal devices are also called terminals, terminal equipment, user equipment (UE), mobile stations, or mobile terminals, etc. Terminal devices can be widely used in various scenarios. For example, terminal devices can be: mobile phones, computers, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, stations (STA), robotic arms, cameras, robots, vehicles, drones, helicopters, airplanes, ships, or smart home devices (such as televisions, air conditioners, robot vacuums, speakers, set-top boxes), relays, customer premises equipment (CPE), etc.

[0084] Furthermore, in this embodiment, the terminal device can also be a terminal device in an IoT system, such as a water meter or electricity meter. IoT is an important component of future information technology development. Its main technical characteristic is connecting objects to networks through communication technology, thereby realizing an intelligent network that enables human-machine interconnection and object-to-object interconnection.

[0085] When the terminal device is applied to V2X, it can also be called a V2X device, such as a smart car, an unmanned car, a driverless car, a pilotless car, or an automobile, or a roadside unit (RSU). All the terminal devices described above, if located on a vehicle (e.g., placed / installed inside the vehicle), can be considered in-vehicle terminal devices. In-vehicle terminal devices can be built into a vehicle's on-board module, on-board unit, on-board component, on-board chip, or on-board unit as one or more components or units. The vehicle can implement the methods of this application through the built-in on-board module, on-board unit, on-board component, on-board chip, or on-board unit. In-vehicle terminal devices can be vehicle equipment, on-board modules, vehicles, on-board units (OBU), RSUs, in-vehicle infotainment systems (or on-board transmitting units) (telematics boxes, T-boxes), chips, or SoCs, etc., and the aforementioned chips or SoCs can be installed in the vehicle, OBU, RSU, or T-box.

[0086] The communication system applicable to the embodiments of this application has been described above. To facilitate understanding of the technical solutions provided by the embodiments of this application, the relevant terms involved in the embodiments of this application will be explained below.

[0087] (1)SBFD

[0088] SBFD (Simplified Beginning Shift) is a mechanism proposed for Time Division Duplexing (TDD) to reduce uplink (UL) latency and improve uplink coverage. In TDD systems, downlink (DL) typically consumes more time-domain resources than uplink, resulting in coverage imbalance between the downlink and uplink. It's important to understand that uplink and downlink are relative terms. If the connection from network device to terminal device is uplink, then the connection from terminal device to network device is downlink. Conversely, if the connection from network device to terminal device is downlink, then the connection from terminal device to network device is uplink (this is used as an example in this paper).

[0089] For example, see Figure 2A This is a schematic diagram of a TDD configuration method. Figure 2AIn this configuration, D represents the downlink time slot, where each symbol is used to transmit downlink data or information, and U represents the uplink time slot, where each symbol is used to transmit uplink data or information. With this configuration, there are fewer time-domain resources available for uplink transmission, resulting in lower uplink transmission resource coverage and increased uplink latency, which cannot meet the needs of low-latency services.

[0090] To improve uplink coverage performance and reduce uplink transmission latency, techniques such as SBFD or single-frequency full-duplex (SFFD) are proposed. In the embodiments of this application, SBFD can be replaced by SFFD.

[0091] In SBFD, a component carrier (CC) is divided into multiple sub-bands. The transmission directions of different sub-bands can be the same or different. On the same time domain resources, network devices can transmit and receive signals simultaneously, thereby enhancing uplink coverage performance and reducing uplink latency.

[0092] For easier understanding, please refer to Figure 2B Two typical SBFD configurations are shown, such as SBFD(1) to SBFD(2). Figure 2B In this context, D represents downlink time-domain resources, and U represents uplink time-domain resources. From... Figure 2B As can be seen, uplink and downlink transmissions utilize different sub-band / frequency domain resources. Thus, within the same time unit of SBFD, both uplink and downlink frequency domain resources exist. Terminal devices and network devices can transmit uplink data via the frequency domain resource corresponding to U within that time unit, and simultaneously transmit downlink data via the frequency domain resource corresponding to D, thereby enabling flexible communication scheduling. In SFFD, uplink and downlink transmissions can be performed simultaneously on the same time-frequency resource. For example, within a single time unit, the entire CC can be used for both transmission and reception.

[0093] For easier understanding, please refer to Figure 2C The diagram shows a schematic of SFFD. Figure 2C In this context, D represents downlink time-domain resources, and U represents uplink time-domain resources. From... Figure 2C As can be seen, uplink and downlink transmissions can be performed simultaneously on the same time-frequency resources, thus enhancing uplink coverage performance and reducing uplink latency.

[0094] (2) CSI Measurement

[0095] CSI measurement can be replaced by CSI-RS measurement. The main idea is to measure a reference signal (RS) with a known sequence and calculate the final CSI based on the measurement results. For example, for a downlink channel, the network device sends information about the time-frequency resources (referred to as CSI-RS resources in this paper) corresponding to the reference signal used to configure the measurement channel to the terminal device. This includes sending a CSI-RS resource configuration (CSI-ResourceConfig) and a CSI-RS file. The terminal device then measures the CSI-RS on the CSI-RS resource to calculate some CSI metrics, such as the rank indicator (RI), precoding matrix indicator (PMI), or channel quality indicator (CQI).

[0096] CSI-RS includes various types, such as zero-power CSI-RS (ZP-CSI-RS) and non-zero-power CSI-RS (NZP-CSI-RS). ZP-CSI-RS refers to zero-power CSI-RS, meaning the target base station does not transmit any information on the configured ZP-CSI-RS resource. When a user performs detection on this resource, the detected signal is interference (because the target base station does not transmit any information). The difference between NZP-CSI-RS and ZP-CSI-RS is that for NZP-CSI-RS, the target base station transmits a known sequence on the configured resource. Through this known sequence, the channel / interference can be determined. Since ZP-CSI-RS is typically used for interference measurement, it can also be referred to as Channel State Information Interference Measurement (CSI-IM). CSI-RS can also be functionally categorized into several types. For example, CSI-RS includes those for channel measurement (CSI-RS for channel measurement, CSI-RS for CM), those for beam measurement (CSI-RS for beam management, CSI-RS for BM), and those for mobility measurement (CSI-RS for mobility). In other words, CSI-RS has multiple applications; for instance, it can be used for channel measurement, beam management, mobility management, or time-frequency tracking.

[0097] Typically, UEs only perform mobility measurements based on CSI-RS resources in connected mode. Network devices configure the measurement object (MO) via RRC signaling. This MO includes the information element "CSI-RS-ResourceConfigMobility," which can be used to configure parameters such as bandwidth, period, offset, and time-frequency location of the CSI-RS resources for mobility. Through these parameters, the UE can obtain the time-frequency location of the CSI-RS resources for measurement. Additionally, for configuring CSI-RS resources for mobility, the network device obtains the neighboring cell's CSI-RS configuration from the csi-RS-Config field in the MeasurementTimingConfiguration message within the Xn interface's inter-node message. This configuration includes CSI-RS-CellMobility.

[0098] (3) Drilling

[0099] In this embodiment of the application, "drilling" refers to punching holes in the resource. For example... Figure 3 The image shown is a schematic diagram of resource punching. Figure 3 The total available resource is S1, and the punctured resource is S2. The punctured resource is not used for data transmission, and the usable resources in S1 are (S1-S2). For the transmitter, puncturing means that the transmitter performs channel coding on the data to be transmitted on resource S1, and then transmits the encoded data on resources (S1-S2), but does not transmit data on the punctured resource S2. Alternatively, it can be understood as the signal being mapped onto the total resource S1, but not onto the punctured resource S2. For the receiver, puncturing means that the receiver receives data on resources (S1-S2), but not on resource S2.

[0100] (4) Time unit

[0101] A time unit generally refers to a unit of time. A time-domain unit can be a radio frame, subframe, slot, mini-slot, orthogonal frequency division multiplexing (OFDM) symbol, millisecond (ms), or fractional milliseconds (e.g., 1 / 32 ms). Alternatively, a time-domain unit can be multiple slots, multiple subframes, multiple mini-slots, multiple OFDM symbols, several milliseconds (ms), or several fractional milliseconds. A radio frame may include multiple subframes, a subframe may include one or more slots, and a slot may include at least one symbol. Alternatively, a radio frame may include multiple slots, and a slot may include at least one symbol. In the embodiments of this application, an OFDM symbol is simply referred to as a symbol; unless otherwise specified, a symbol refers to an OFDM symbol.

[0102] (5) In the embodiments of this application, "transmission" includes "sending" and / or "receiving". "Sending" and "receiving" indicate the direction of signal transmission. For example, "sending information to XX" can be understood as the destination of the information being XX, which may include direct transmission via the air interface or indirect transmission by other units or modules via the air interface. "Receiving information from YY" can be understood as the source of the information being YY, which may include direct reception from YY via the air interface or indirect reception from YY by other units or modules via the air interface. "Sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface. In other words, sending and receiving can occur between devices, such as between access network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via a bus, wiring, or interface.

[0103] In this application embodiment, the number of nouns, unless otherwise specified, refers to "singular nouns or plural nouns," that is, "one or more." "At least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone, where A / B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. For example, A / B means: A or B. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, and / or c means the following combinations: a exists alone, b exists alone, c exists alone, a and b exist simultaneously, a and c exist simultaneously, b and c exist simultaneously, or a, b, and c exist simultaneously, where a, b, and c can be single or multiple.

[0104] In the embodiments of this application, "when," "if," and "if" all refer to the device taking corresponding actions under certain objective circumstances, and are not time-limited, nor do they require the device to perform a judgment action, nor do they imply any other limitations. Unless otherwise specified, "if" and "if" can be substituted, and "when" and "in the case of" can be substituted. "When" and "if" / "if" can be substituted.

[0105] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0106] In this application, the ordinal numbers such as "first" and "second" are used to distinguish multiple objects, and are not used to limit the size, content, order, timing, priority, or importance of the multiple objects. For example, "first resource" and "second resource" refer to two different resources, and do not indicate a difference in priority or importance between the two resources.

[0107] In the embodiments of this application, the solutions in each embodiment can be used in a reasonable combination, and the explanations or descriptions of various terms, similar operations, or steps appearing in the embodiments can be referenced or explained to each other in the embodiments, without limitation.

[0108] The relevant terminology of the embodiments of this application has been introduced above. The technical problems to be solved by the embodiments of this application and the solutions provided by the embodiments of this application are described below.

[0109] As mentioned earlier, if CSI-RS is transmitted on SBFD symbols, the CSI-RS needs to be punctured. For example, when the serving cell's CSI-RS is transmitted on SBFD symbols, the CSI-RS resources need to be punctured; similarly, when neighboring cells transmit on SBFD symbols, the CSI-RS resources also need to be punctured. For terminal devices, while they can obtain the configuration of the serving cell's SBFD resources, they cannot know the relevant configurations of neighboring cells' SBFD resources. Therefore, they cannot decide whether the CSI-RS resources should be punctured, which may result in the terminal device being unable to perform accurate CSI measurements or obtaining CSI measurement results with low accuracy.

[0110] Therefore, the present application provides a solution for CSI measurements in neighboring cells, where CSI-RS is transmitted on SBFD symbols. This application provides a solution for a terminal device to decide whether to perform CSI measurements based on the puncturing of CSI-RS resources. This solution is simpler than relying on the terminal device to determine whether CSI-RS resources should be punctured based on SBFD and CSI-RS configurations, thus reducing the processing complexity of the terminal device and improving communication efficiency.

[0111] In this embodiment, the time-domain resources of SBFD resources are also referred to as SBFD time units, which contain both uplink and downlink frequency domain resources. Alternatively, within an SBFD time unit, a carrier may include at least two sub-bands, comprising a sub-band for uplink transmission (referred to as the uplink sub-band) and a sub-band for downlink transmission (referred to as the downlink sub-band). A guard band may or may not be provided between the uplink and downlink sub-bands. This embodiment does not impose restrictions on whether a guard band is provided between the uplink and downlink sub-bands. Furthermore, if a guard band exists between the uplink and downlink sub-bands, this embodiment does not impose restrictions on whether transmission occurs on that guard band. Additionally, the uplink and downlink sub-bands may or may not overlap. This embodiment also does not impose restrictions on whether the uplink and downlink sub-bands overlap.

[0112] This application does not limit the specific granularity of the "time unit". For example, an SBFD time unit can be an SBFD symbol or an SBFD time slot; a non-SBFD time unit can be a non-SBFD symbol or a non-SBFD time slot. Here, an SBFD symbol is a symbol configured with SBFD, and a non-SBFD symbol is a symbol without SBFD; an SBFD time slot is a time slot configured with SBFD, and a non-SBFD time slot is a time slot without SBFD. Regarding the configuration of SBFD, depending on whether a time slot simultaneously contains SBFD symbols and non-SBFD symbols, the following two possible configuration methods can be referenced:

[0113] (1) SBFD configuration is at the time slot level, that is, the symbols contained in a time slot are either all configured as SBFD symbols or all configured as non-SBFD symbols.

[0114] (2) SBFD configuration is symbol-level, meaning that a slot contains symbols, some of which can be configured as SBFD symbols and others as non-SBFD symbols.

[0115] In this embodiment of the application, "(pre)configuration" refers to configuration via signaling, which may be one or more of RRC signaling, downlink control information (DCI), or MAC control element (CE).

[0116] Resource overlap can be partial or complete. It includes resource overlap in the time and / or frequency domains. For example, resource overlap between a first resource (or CSI-RS resource) and a second resource (or SBFD resource) includes: the first and second resources overlap in the time domain. Another example is resource overlap between a first and second resource, which also includes: the first and second resources overlap in the frequency domain. Yet another example is resource overlap between a first and second resource, which includes: the first and second resources overlap in the time domain, and in the frequency domain, the uplink subbands of the first and second resources partially or completely overlap. Here, "resource overlap between the first and second resources" can be replaced with "resource conflict between the first and second resources," "the first resource should be punctured," or "the CSI-RS resource should be punctured."

[0117] The following describes the communication method provided by embodiments of this application. In the following description, the communication method provided by embodiments of this application will be applied to… Figure 1The architecture shown is an example. The network architecture and application scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems. In the embodiments of this application, the solutions in each embodiment can be reasonably combined and used, and the explanations or descriptions of various terms, similar operations, or steps appearing in the embodiments can be referenced or explained to each other in the various embodiments, without limitation.

[0118] The following describes the communication method provided in this application from the perspective of the interaction between the first network device, the second network device, and the terminal device. The steps executed by the first or second network device can be implemented by the RAN device itself, by components within the RAN device (such as a baseband chip, or other processing units or processor modules), or by components that perform some or all of the functions of the RAN device (such as a CU, DU, or RU). The steps executed by the terminal device can be implemented by the terminal device itself, or by components within the terminal device (such as a baseband chip, or other processing units or processor modules). The specific forms of the network device (e.g., the first or second network device) and the terminal device are not limited; for example, the network device can be a chip, and the terminal device can be a device; or both the network device and the terminal device can be chips or devices. In possible scenarios, the terminal device can be... Figure 1 The terminal device 120a shown, or it could be Figure 1 The chip (system) in the terminal device 120a; the first network device may be Figure 1 The network device 110a in the middle, or it could be Figure 1 The chip (system) in network device 110a.

[0119] Please see Figure 4 This is a flowchart illustrating the first communication method provided in the embodiments of this application. Figure 4The method is described from the perspective of the interaction between the first network device, the second network device, and the terminal device. The first network device is the serving base station of the terminal device, and the second network device is the neighboring cell base station (or adjacent base station) of the terminal device, providing neighboring cells (or adjacent cells) to the terminal device. It should be understood that the communication method can also be implemented by other devices, such as chips or communication devices with communication functions. Furthermore, the processing performed by a single executing entity can be divided into multiple executing entities, which can be logically and / or physically separated. For example, the processing performed by the first network device can be divided into at least one execution entity among CU, DU, RU, etc. Figure 4 As shown, the communication method includes the following steps.

[0120] S401, the second network device sends the configuration of the first resource and the configuration of the second resource, and correspondingly, the first network device receives the configuration of the first resource and the configuration of the second resource.

[0121] The first resource, also known as the CSI-RS resource, can be used by the second network device for the transmission and / or measurement of CSI in the first cell, which is a neighboring cell of the terminal device. Using the first resource for CSI measurement in the first cell of the second network device can be understood as: the first resource is used to transmit CSI-RS, which is used to measure the CSI of the first cell; or, the first resource is used to perform CSI measurement in the first cell. The second network device can configure the first resource for the terminal device through the first network device. For example, the second network device can send the configuration of the first resource to the first network device, which then sends the configuration to the terminal device. The second network device can send the configuration of the first resource to the first network device via Xn (e.g., X2) interface signaling. The configuration of the first resource can be carried in a first information cell, such as "CSI-ResourceConfig", "MeasurementTimingConfiguration", or "CSI-RS-CellMobility".

[0122] The second resource is the SBFD resource in the first cell. In this embodiment, the SBFD resource contains both uplink and downlink frequency domain resources in the same time unit. The second network device can configure the second resource for the terminal device through the first network device. For example, the second network device can send the configuration of the second resource to the first network device, and the first network device can send the configuration of the second resource to the terminal device. The second network device can send the configuration of the second resource to the first network device through Xn (e.g., X2) interface signaling. The time domain configuration of the second resource can be carried in a second information element, which includes (or is) "TDD-UL-DL-ConfigCommon", "TDD-SBFD-ConfigCommon", or "TDD-UL-DL-ConfigCommon-Ext". There is no limitation on the name of the second information element. The second information element can be used to configure the index of the start slot of the SBFD symbol, the index of the start symbol in the start slot, the index of the end slot, and the index of the end symbol in the end slot. The frequency domain configuration of the second resource can be carried in a third information cell. The third information cell may include (or be) “SCS-SpecificCarrierList”, “SCS-SpecificCarrier”, “SCS-SpecificCarrier-SBFD”, or “SCS-SBFD-SpecificCarrier”. There are no restrictions on the name of the third information cell. The third information cell may include the frequency domain configuration of the uplink subband and / or the frequency domain location of the downlink subband in the SBFD resource.

[0123] Optionally, the configuration of the first resource and the configuration of the second resource are sent simultaneously; or, the second network device sends the configuration of the first resource first and then sends the configuration of the second resource; or, the second network device sends the configuration of the second resource first and then sends the configuration of the first resource.

[0124] When both the second and first network devices are CU-DU architectures, the second network device sending the configuration of the first resource to the first network device can be done as follows: the DU of the second network device sends the configuration of the first resource to the CU of the second network device; the CU of the second network device receives the configuration of the first resource and then sends the configuration of the first resource to the CU of the first network device. Similarly, the second network device sending the configuration of the second resource to the first network device can be done as follows: the DU of the second network device sends the configuration of the second resource to the CU of the second network device; the CU of the second network device receives the configuration of the second resource and then sends the configuration of the second resource to the CU of the first network device.

[0125] S402, the first network device sends the configuration of the first resource and the configuration of the second resource, and correspondingly, the terminal device receives the configuration of the first resource and the configuration of the second resource.

[0126] After receiving the configuration of the first resource and the configuration of the second resource from the second network device, the first network device can send the configuration of the first resource and the configuration of the second resource to the terminal device. The configuration of the first resource and the configuration of the second resource can be carried in the same signaling message. For example, the first network device sending the configuration of the first resource and the configuration of the second resource can be: the first network device sends a first signaling message, which includes the configuration of the first resource and the configuration of the second resource. Optionally, the first signaling message includes a first information element, which is an information element used to configure CSI resources (e.g., the first information element could be "CSI-ResourceConfig"), and the configuration of the first resource and the configuration of the second resource are carried in the first information element. Alternatively, the first signaling message includes a first information element, a second information element, and a third information element, where the first information element is used to configure CSI resources, the second information element is used to configure time-domain resources in SBFD resources, the third information element is used to configure frequency-domain resources in SBFD resources, the configuration of the first resource is carried in the first information element, and the configuration of the second resource is carried in the second and third information elements. Alternatively, the first signaling may include a second information cell and a third information cell, with the configuration of the first resource and the configuration of the second resource carried in the second information cell or the third information cell.

[0127] Alternatively, the configuration of the first resource and the configuration of the second resource can be carried on different signaling. For example, the configuration of the first resource can be carried on CSI-RS resource configuration, and the configuration of the second resource can be carried on SBFD resource configuration. In this case, the first network device sending the configuration of the first resource and the configuration of the second resource includes: the first network device sending CSI-RS resource configuration, and the first network device sending SBFD resource configuration. The CSI-RS resource configuration and the SBFD resource configuration can be sent simultaneously; or, the CSI-RS resource configuration can be sent first, followed by the SBFD resource configuration; or, the SBFD resource configuration can be sent first, followed by the CSI-RS resource configuration.

[0128] When the first network device is a CU-DU architecture, the configuration of the first resource sent by the first network device to the terminal device can be as follows: the CU of the first network device sends the configuration of the first resource to the DU of the first network device; the DU of the first network device receives the configuration of the first resource and then sends the configuration of the first resource to the terminal device. When the first network device is a CU-DU architecture, the configuration of the second resource sent by the first network device to the terminal device can be as follows: the CU of the first network device sends the configuration of the second resource to the DU of the first network device; the DU of the first network device receives the configuration of the second resource and then sends the configuration of the second resource to the terminal device.

[0129] Depending on the capabilities of the terminal devices, some terminal devices support CSI measurements on SBFD resources, while others do not. A terminal device supporting CSI measurements on SBFD resources can be replaced with: the terminal device supports CSI-RS transmission occurring on SBFD resources. Similarly, a terminal device not supporting CSI measurements on SBFD resources can be replaced with: the terminal device does not support CSI-RS transmission occurring on SBFD resources. If the terminal device supports CSI-RS transmission occurring on SBFD resources, the first network device sends the configuration of the first resource to the terminal device. If the terminal device does not support CSI-RS transmission occurring on SBFD resources, after receiving the configuration of the first resource from the second network device, the first network device may not send the configuration of the first resource to the terminal device to reduce signaling waste. Optionally, if the first network device sends the configuration of the second resource to the terminal device, and the terminal device does not support CSI-RS transmission occurring on SBFD resources, the first network device does not send the configuration of the first resource to the terminal device.

[0130] When the first network device is a CU-DU architecture, whether to send the configuration of the first resource to the terminal device can be determined by the CU of the first network device. For example, if the CU of the first network device determines that the terminal device supports CSI measurement on SBFD resources, then it sends the configuration of the first resource to the DU of the first network device. If the CU of the first network device determines that the terminal device does not support CSI measurement on SBFD resources, then it does not send the configuration of the first resource to the DU of the first network device. Alternatively, whether to send the configuration of the first resource to the terminal device is determined by the DU of the first network device. For example, if the DU of the first network device determines that the terminal device supports CSI measurement on SBFD resources, then it receives the configuration of the first resource from the CU of the first network device and sends it to the terminal device. If the DU of the first network device determines that the terminal device does not support CSI measurement on SBFD resources, then it does not receive the configuration of the first resource from the CU of the first network device and send it to the terminal device.

[0131] Understandably, if the first and second resources overlap, the first resource (or CSI-RS resource) may need to be punched when the terminal device performs CSI measurements. For example, if the first and second resources overlap in the time domain, the terminal device may need to punch a hole in the first resource when performing CSI measurements. Similarly, if the first and second resources overlap in the frequency domain, the terminal device may need to punch a hole in the first resource when performing CSI measurements. Furthermore, if the first and second resources overlap in the time domain, and in the frequency domain, the uplink subbands of the first and second resources partially or completely overlap, the terminal device needs to punch a hole in the first resource when performing CSI measurements. If the first and second resources do not overlap, the first resource should not be punched when the terminal device performs CSI measurements. Therefore, the configuration of the second resource may affect CSI measurements.

[0132] To obtain more accurate CSI measurement results, when a second resource affects CSI measurement, the first network device can send the configuration of the second resource to the terminal device, enabling the terminal device to perform CSI measurement based on the configuration. When the second resource does not affect CSI measurement, the first network device does not need to send the configuration of the second resource to the terminal device, thus minimizing signaling overhead. Specifically, the first network device can decide independently whether to send the configuration of the second resource to the terminal device, or the decision can be made by the second network device, with the first network device determining whether to send the configuration based on the instructions of the second network device. The following example illustrates this.

[0133] In Example 1, the first network device can decide independently whether to send the configuration of the second resource to the terminal device. If the first network device determines that the second resource overlaps with the first resource, it sends the configuration of the second resource to the terminal device. For example, if the first network device obtains the configurations of the second and first resources from the second network device, and further determines that the second and first resources overlap, it then sends the configuration of the second resource to the terminal device. If the second and first resources do not overlap, the first network device, after receiving the configuration of the second resource from the second network device, may choose not to forward the configuration of the second resource to the terminal device.

[0134] When the first network device is a CU-DU architecture, the CU of the first network device can determine whether to send the configuration of the second resource to the terminal device. For example, if the CU of the first network device determines that the first resource and the second resource overlap, it sends the configuration of the second resource to the DU of the first network device, and the DU of the first network device then sends the received configuration of the second resource to the terminal device. If the CU of the first network device determines that the first resource and the second resource do not overlap, it does not send the configuration of the second resource to the DU of the first network device. Alternatively, whether to send the configuration of the first resource to the terminal device is determined by the DU of the first network device. For example, if the DU of the first network device receives the configuration of the first resource and the configuration of the second resource, and determines that the first resource and the second resource overlap, it sends the configuration of the second resource to the terminal device. If the DU of the first network device determines that the first resource and the second resource do not overlap, it does not send the configuration of the second resource to the terminal device.

[0135] In Example 2, the first network device determines whether to send the configuration of the second resource to the terminal device based on the instruction of the second network device. For example, if the second network device determines that the first resource and the second resource overlap, it may send fourth information to the first network device; the first network device receives the fourth information and sends the configuration of the second resource to the terminal device according to the fourth information. The fourth information may explicitly instruct the first network device to send the configuration of the second resource to the terminal device. Alternatively, the fourth information may indicate that the first resource and the second resource overlap, implicitly instructing the first network device to send the configuration of the second resource to the terminal device. Or, the fourth information may indicate that the terminal device needs to perform CSI measurements according to the configuration of the second resource, implicitly instructing the first network device to send the configuration of the second resource to the terminal device. The embodiments of this application do not limit the signaling carrying the fourth information.

[0136] When the second network device is a CU-DU architecture, the CU of the second network device can determine whether to send the configuration of the second resource to the terminal device. For example, if the CU of the second network device determines that the first and second resources overlap, it sends fourth information to the first network device, which then sends the fourth information to the terminal device. If the CU of the second network device determines that the first and second resources do not overlap, it does not send the fourth information to the first network device. The first network device, not receiving the fourth information, does not send the configuration of the second resource to the terminal device. Alternatively, whether to send the configuration of the second resource to the terminal device is determined by the DU of the second network device. For example, if the DU of the second network device receives the configuration of the first and second resources and determines that they overlap, it sends the configuration of the second resource to the CU of the second network device, which then sends the second resource to the first network device, which in turn sends it to the terminal device. If the DU of the second network device determines that the first and second resources do not overlap, it does not send the configuration of the second resource to the CU of the second network device.

[0137] Optionally, if the first resource consists of multiple CSI-RS resources, and any one of these CSI-RS resources overlaps with the second resource, then the first network device sends the configuration of the second resource to the terminal device. For example, if these multiple CSI-RS resources include the first CSI-RS resource and the second CSI-RS resource, and the first CSI-RS resource overlaps with the second resource but the second CSI-RS resource does not overlap with the second resource, the first network device will still send the configuration of the second resource to the terminal device.

[0138] Optionally, the first network device may request the second network device whether to send the configuration of the second resource to the terminal device. For example, after receiving the configuration of the first resource and the configuration of the second resource from the second network device, the first network device may send a second request to the second network device, which may be used to request whether to forward the configuration of the second resource to the terminal device. Alternatively, the second request may be used to request the second network device to send fourth information. Upon receiving the first request and determining that the first resource and the second resource overlap, the second network device, in response to the first request, sends a second response to the first network device, which instructs the first network device to send the configuration of the second resource to the terminal device. Alternatively, the second response may be fourth information.

[0139] When both the first and second network devices are CU-DU architectures, the CU of the first network device, after receiving the configuration of the second resource, can send a second request to the second network device. Alternatively, the DU of the first network device, after receiving the configuration of the second resource, can send a second request to the CU of the first network device, which then forwards the second request to the second network device.

[0140] S403, The terminal device determines the first information or the second information.

[0141] The first information indicates that CSI measurement needs to be performed based on the configuration of the second resource. The second information indicates that CSI measurement does not need to be performed based on the configuration of the second resource. As mentioned above, when the first resource and the second resource do not overlap, the terminal device performs CSI measurement on the first resource. When the first resource and the second resource overlap (including partial overlap), the first resource may need to be punctured. If the first resource needs to be punctured, the terminal device performs CSI measurement on the first resource according to the CSI-RS resource puncturing. For the terminal device, before performing CSI measurement, it needs to determine whether the second resource is considered when performing CSI measurement, or whether CSI measurement should be performed based on the configuration of the second resource, or the terminal device determines the first information or the second information. That is, step S403 can be replaced by the terminal device determining whether to transmit CSI-RS (or perform CSI measurement) in a punctured manner.

[0142] The following details the specific methods by which the terminal device determines the first and second information.

[0143] In Method 1, if the terminal device determines that the first resource and the second resource are associated, then it determines the first information. Conversely, if the terminal device determines that the first resource and the second resource are not associated, then it determines the second information.

[0144] (1) When the configuration of the first resource includes the configuration of the second resource, the first resource and the second resource are associated; or, when the configuration of the first resource does not include the configuration of the second resource, the first resource and the second resource are not associated.

[0145] For example, the configuration of the first resource can be carried in the information cell "CSI-ResourceConfig", and the configuration of the second resource can also be carried in the information cell "CSI-ResourceConfig". Therefore, the first and second resources can be considered to be associated. That is to say, the information cell "CSI-ResourceConfig" is used not only to configure the first resource (or CSI-RS resource) but also to configure the second resource (or SBFD resource), so the first and second resources are associated.

[0146] In this case, determining the first information can be replaced by: determining that the configuration of the first resource includes the configuration of the second resource; or, determining that the first resource (or CSI-RS resource) should be punched; or, determining the first information when the configuration of the first resource includes the configuration of the second resource. Determining the first information when the configuration of the first resource includes the configuration of the second resource includes: the existence of the first information when the configuration of the first resource includes the configuration of the second resource; or determining the first information by / based on the configuration of the first resource including the configuration of the second resource, which could be "the configuration of the first resource includes the configuration of the second resource," or "CSI measurement needs to be performed based on the second resource," or "the first resource should be punched."

[0147] The configuration of the first resource not including the configuration of the second resource includes situations where the information cells carrying the configuration of the first resource and the information cells carrying the configuration of the second resource are different. For example, if the configuration of the first resource is carried in the information cell "CSI-ResourceConfig" and the configuration of the second resource is carried in "TDD-UL-DL-ConfigCommon", then the configuration of the first resource does not include the configuration of the second resource, and the first and second resources are not associated. In this case, determining the second information can be replaced by: determining that the configuration of the first resource does not include the configuration of the second resource; or determining that the first resource (or CSI-RS resource) should not be punched; or determining the second information when the configuration of the first resource does not include the configuration of the second resource. "Determining the second information when the configuration of the first resource does not include the configuration of the second resource" includes: when the configuration of the first resource does not include the configuration of the second resource, then the second information exists; or the second information is determined by / based on the fact that the configuration of the first resource does not include the configuration of the second resource, and the second information is "the configuration of the first resource does not include the configuration of the second resource", or "CSI measurement is not required based on the second resource", or "the first resource should not be punched".

[0148] (2) The configuration associated MO of the first resource includes the second resource, and the first resource and the second resource are associated; or, the configuration associated measurement object of the first resource does not include the second resource, and the first resource and the second resource are not associated.

[0149] MO configuration typically includes the measurement target, such as the cell, signal, or resource being measured. The configuration of the measured resource includes information such as the time domain and frequency domain (e.g., bandwidth, frequency point). The terminal device obtains the configuration of the first resource and can determine the MO associated with that configuration. If the measured resource in that MO includes the second resource, then the second resource and the first resource are associated. If the measurement object associated with the configuration of the first resource does not include the second resource, then the second resource and the first resource are not associated.

[0150] Determining the first information can be replaced by: determining that the measurement object associated with the configuration of the first resource includes the second resource; or, determining that the first resource (or CSI-RS resource) should be punched; or, determining the first information when the measurement object associated with the configuration of the first resource includes the second resource. "Determining the first information when the measurement object associated with the configuration of the first resource includes the second resource" includes: the existence of the first information when the measurement object associated with the configuration of the first resource includes the second resource; or determining the first information by / based on "the measurement object associated with the configuration of the first resource includes the second resource," which is "the measurement object associated with the configuration of the first resource includes the second resource," or "CSI measurement needs to be performed based on the second resource," or "the first resource should be punched."

[0151] Determining the second information can be replaced by: determining that the measurement object associated with the configuration of the first resource does not include the second resource; or determining that the first resource (or CSI-RS resource) should not be punched; or determining the second information when the measurement object associated with the configuration of the first resource does not include the second resource. "Determining the second information when the measurement object associated with the configuration of the first resource does not include the second resource" includes: the existence of second information when the measurement object associated with the configuration of the first resource does not include the second resource; or determining the second information based on "the measurement object associated with the configuration of the first resource does not include the second resource," where the second information is "the measurement object associated with the configuration of the first resource does not include the second resource," or "CSI measurement is not required based on the second resource," or "the first resource should not be punched."

[0152] (3) The frequency point associated with the configuration of the first resource corresponds to the second resource, and the first resource and the second resource are associated; or, the frequency point associated with the configuration of the first resource does not correspond to the second resource, and the first resource and the second resource are not associated.

[0153] If the frequency associated with the configuration of the first resource corresponds to the second resource, then the second resource is considered associated with the first resource. If the frequency associated with the configuration of the first resource does not correspond to the second resource, then the second resource and the first resource are not associated. Here, the frequency can be the center frequency of the cell or the synchronization signal block (SSB) frequency. The configuration of the first resource corresponding to the second resource means that the frequency of the first resource is within the frequency range of the second resource. The configuration of the first resource not corresponding to the second resource means that the frequency of the first resource is not within the frequency range of the second resource.

[0154] Determining the first information can be replaced by: determining that the frequency associated with the configuration of the first resource corresponds to the second resource; or, determining that the first resource (or CSI-RS resource) should be punched; or, determining the first information when the frequency associated with the configuration of the first resource corresponds to the second resource. "Determining the first information when the frequency associated with the configuration of the first resource corresponds to the second resource" includes: the existence of the first information when the frequency associated with the configuration of the first resource corresponds to the second resource; or determining the first information based on / through "the frequency associated with the configuration of the first resource corresponds to the second resource," where the first information is "the frequency associated with the configuration of the first resource corresponds to the second resource," or "CSI measurement needs to be performed based on the second resource," or "the first resource should be punched."

[0155] The determination of the second information can be replaced by: determining that the frequency point associated with the configuration of the first resource does not correspond to the second resource; or determining that the first resource (or CSI-RS resource) should not be punched; or determining the second information when the frequency point associated with the configuration of the first resource does not correspond to the second resource. "Determining the second information when the frequency point associated with the configuration of the first resource does not correspond to the second resource" means: when the frequency point associated with the configuration of the first resource does not correspond to the second resource, second information exists; or the second information is determined based on / through the fact that the frequency point associated with the configuration of the first resource does not correspond to the second resource, and this second information is "the frequency point associated with the configuration of the first resource does not correspond to the second resource," or "CSI measurement is not required based on the second resource," or "the first resource should not be punched."

[0156] In method 2, the first network device may indicate to the terminal device whether the terminal device needs to perform CSI measurement based on the second resource. In other words, the first network device decides whether the terminal device needs to perform CSI measurement based on the second resource and notifies the terminal device accordingly. For example, the first network device may send a first message to the terminal device indicating that CSI measurement based on the second resource is required; the terminal device receives the first message and determines that CSI measurement based on the second resource is required. Alternatively, the first network device may send a second message to the terminal device indicating that CSI measurement based on the second resource is not required; the terminal device receives the second message and determines that CSI measurement based on the second resource is not required.

[0157] Sending first information from a first network device to a first terminal device may include: the first network device sending a signaling message (e.g., an RRC reconfiguration message) to the terminal device, the second signaling message including a first field that can be used to indicate the first information. For example, the first field may have a first value indicating the first information; or the first field may have a second value indicating the second information. Alternatively, sending first information from a first network device to a first terminal device may include: the first network device sending a signaling message (e.g., an RRC reconfiguration message) to the terminal device, the second signaling message including a first field that indicates the first information. Sending first information from a first network device to a first terminal device may also include: the first network device sending a signaling message (e.g., an RRC reconfiguration message) to the terminal device, the second signaling message including a second field that indicates the second information. Alternatively, if a signaling message (e.g., an RRC reconfiguration message) sent by the first network device to the terminal device omits a field (e.g., the first field), it is considered that the first network device has sent the second information to the terminal device.

[0158] Whether the terminal device needs to perform CSI measurement based on the second resource can be decided by the first network device itself, or whether the terminal device needs to perform CSI measurement based on the second resource can be decided by the second network device, and the second network device will notify the first network device of the decision result.

[0159] In Example 1, the first network device decides on its own whether to send the first message or the second message to the terminal device.

[0160] For example, the first network device obtains the configuration of the second resource and the configuration of the first resource from the second network device, determines that the second resource and the first resource overlap, and then sends the first information to the terminal device. If the second resource and the first resource do not overlap, the first network device can send the second information to the terminal device.

[0161] When the first network device is a CU-DU architecture, the decision to send first information (or second information) to the terminal device can be made by the CU of the first network device, which then notifies the DU of the first network device, which in turn sends the first information to the terminal device. For example, the CU of the first network device obtains the configuration of the second resource and the configuration of the first resource from the second network device, determines that the second resource and the first resource overlap, and sends the first information to the DU of the first network device. The DU of the first network device receives the first information and forwards it to the terminal device. If the second resource and the first resource do not overlap, the CU of the first network device can send the second information to the DU of the first network device, which receives the second information and forwards it to the terminal device.

[0162] Alternatively, the decision to send the first (or second) information to the terminal device can be made by the DU of the first network device. For example, the DU of the first network device obtains the configuration of the second resource and the configuration of the first resource from the CU of the first network device, determines that the second resource and the first resource overlap, and sends the first information to the terminal device. If the second resource and the first resource do not overlap, the DU of the first network device can send the second information to the terminal device.

[0163] For example, the first network device obtains the configuration of the second resource and the configuration of the first resource from the second network device, determines that the second resource and the first resource are associated, and then sends the first information to the terminal device. If the second resource and the first resource are not associated, the first network device can send the second information to the terminal device. The method by which the first network device determines the association between the first resource and the second resource can be referred to the aforementioned method by which the terminal device determines the association between the first resource and the second resource, and will not be repeated here. Furthermore, when the first network device is a CU-DU structure, the decision to send the first information (or the second information) to the terminal device can be made by the CU or DU of the first network device, referring to the aforementioned decision by the CU or DU of the first network device to send the first information (or the second information) to the terminal device based on whether the second resource and the first resource overlap, and will not be repeated here.

[0164] In Example 2, the first network device determines whether to send first information or second information to the terminal device based on the instructions of the second network device.

[0165] For example, if a second network device determines that a first resource and a second resource overlap, it can send third information to the first network device. The first network device receives the third information and sends first information to the terminal device based on the third information. The third information can explicitly instruct the first network device to send the first information to the terminal device. Alternatively, the third information can indicate that the first resource and the second resource overlap, implicitly instructing the first network device to send the first information to the terminal device. Or, the third information can indicate that the terminal device needs to perform CSI measurements based on the configuration of the second resource, implicitly instructing the first network device to send the first information to the terminal device. The embodiments of this application do not limit the signaling carrying the third information.

[0166] For example, if a second network device determines that the first resource and the second resource do not overlap, it can send fifth information to the first network device. The first network device receives this fifth information and, based on it, sends second information to the terminal device. The fifth information can explicitly instruct the first network device to send the second information to the terminal device. Alternatively, the fifth information can indicate that the first resource and the second resource do not overlap, implicitly instructing the first network device to send the second information to the terminal device. Or, the fifth information can indicate that the terminal device does not need to perform CSI measurements based on the configuration of the second resource, implicitly instructing the first network device to send the second information to the terminal device. This application does not limit the signaling carrying the fifth information.

[0167] When the second network device is a CU-DU architecture, the first (or second) information to be sent to the terminal device can be determined by the CU of the second network device. For example, if the CU of the second network device determines that the first and second resources overlap, it sends a third information to the first network device. The first network device receives the third information and sends the first information to the terminal device. If the CU of the second network device determines that the first and second resources do not overlap, it sends a fifth information to the first network device. The first network device receives the fifth information and sends the second information to the terminal device. Alternatively, the first (or second) information to be sent to the terminal device can be determined by the DU of the second network device. For example, if the DU of the second network device determines that the first and second resources overlap, it sends a third information to the CU of the second network device, the CU of the second network device sends the third information to the first network device, the first network device receives the third information, and sends the first information to the terminal device. If the DU of the second network device determines that the first and second resources do not overlap, it sends a fifth information to the CU of the second network device, the CU of the second network device sends the fifth information to the first network device, the first network device receives the fifth information, and sends the second information to the terminal device.

[0168] Optionally, the first network device requests the second network device whether to send first information to the terminal device. For example, after receiving the configuration of the first resource and the configuration of the second resource from the second network device, the first network device sends a first request to the second network device. This first request can be used to request whether to send first information to the terminal device. Alternatively, the first request can be used to request the second network device to send third or fifth information. Upon receiving the first request and determining that the first resource and the second resource overlap, the second network device, in response to the first request, sends a first response to the first network device, which instructs the first network device to send the first information to the terminal device. Alternatively, the first response can be third information. Upon receiving the first request and determining that the first resource and the second resource do not overlap, the second network device, in response to the first request, sends a third response to the first network device, which instructs the first network device to send second information to the terminal device. Alternatively, the third response can be fifth information.

[0169] When both the first and second network devices are CU-DU architectures, the CU of the first network device, after receiving the configuration of the second resource, can send a first request to the second network device. Alternatively, the DU of the first network device, after receiving the configuration of the second resource, can send a first request to the CU of the first network device, which then forwards the first request to the second network device.

[0170] As described above, the terminal device, based on method 1 or method 2, can determine whether CSI measurement needs to be performed based on the configuration of the second resource before using the configuration of the second resource. The terminal device can receive configurations for multiple first resources. Some of these first resources are affected by (or associated with) SBFD resources, while others are not affected by (or not associated with) SBFD resources. Based on the first or second information, the terminal device can determine how to perform CSI measurement on each first resource. For example, if affected by SBFD resources, the terminal device can perform CSI measurement based on a punched first resource; if unaffected by resources, the terminal device does not need to punch holes in the first resource when performing CSI measurement on it.

[0171] For example, the configuration of the first resource sent by the first network device to the terminal device includes the configuration of the first CSI-RS resource and the configuration of the second CSI-RS resource, wherein the first CSI-RS resource overlaps with the second resource, and the second CSI-RS resource does not overlap with the second resource. In this case, the first network device also sends the configuration of the second resource to the terminal device.

[0172] For the terminal device, if the configuration of the first CSI-RS resource includes the configuration of the second resource, then the terminal device can determine that the first CSI-RS resource needs to be punched, and perform CSI measurements based on the punched first CSI-RS resource. If the configuration of the second CSI-RS resource does not include the configuration of the second resource, then the terminal device can determine that the second CSI-RS resource does not need to be punched, and perform CSI-RS measurements on the second CSI-RS resource.

[0173] Alternatively, the first network device may also send first information to the terminal device, indicating that the first CSI-RS resource needs to be CSI measured according to the configuration of the second resource. Optionally, the first network device receives third information and sends the first information to the terminal device. The terminal device performs CSI-RS measurement on the punched first CSI-RS resource according to the first information.

[0174] Alternatively, the first network device may also send a second message to the terminal device, indicating that the second CSI-RS resource does not require CSI measurement based on the configuration of the second resource. Optionally, the first network device receives a fourth message and sends the second message to the terminal device. The terminal device performs CSI-RS measurement on the second CSI-RS resource based on the second message.

[0175] S404. The second network device sends CSI-RS, and the terminal device receives the CSI-RS accordingly.

[0176] S404 can be sent before S401, or before S402 or S403. When the first resource and the second resource overlap, the first resource may need to be punctured. If the first resource needs to be punctured, the second network device can send CSI-RS on the third resource within the first resource. Accordingly, the terminal device receives CSI-RS on the third resource. The third resource is the resource obtained after the first resource is punctured, and this third resource does not include the uplink resource in the second resource. When the first resource and the second resource do not overlap, and the second resource does not affect the CSI measurement, the second network device sends CSI-RS on the first resource. Accordingly, the terminal device receives CSI-RS on the first resource.

[0177] S405. When the first information is determined, the CSI-RS is measured in the third resource of the first resource.

[0178] If the terminal device determines the first information, then the first resource should be punched, and the terminal device measures the CSI-RS on the third resource within the first resource. Measuring the CSI-RS on the third resource within the first resource can be replaced by: receiving the CSI-RS on the third resource within the first resource and measuring the received CSI-RS; or, receiving the CSI-RS on the third resource within the first resource.

[0179] After performing CSI measurements, the terminal device can execute corresponding actions based on the measurement results. For example, the terminal device can perform cell handover based on the CSI measurement results. S403 and S404 can be executed simultaneously; for example, the first information can be determined during the execution of S404.

[0180] S406. When the second information is determined, CSI-RS is measured in the first resource.

[0181] If the terminal device determines the second information, then the first resource should not be punched, and the terminal device measures the CSI-RS on the first resource. Measuring the CSI-RS on the first resource can be replaced by: receiving the CSI-RS on the first resource and measuring the received CSI-RS; or, receiving the CSI-RS on the first resource. After measuring the CSI-RS on the first resource, the terminal device can perform cell handover, etc., based on the measurement results.

[0182] S403 and S405 can be executed simultaneously; for example, the second information can be determined during the execution of S405. Furthermore, S406 is not executed while S405 is being executed, and vice versa.

[0183] exist Figure 4 In the communication method shown, before performing CSI measurement based on the configuration of the second resource, the terminal device can determine whether CSI measurement needs to be performed based on the configuration of the second resource according to the first information. Compared to the terminal device determining the first and second resources based on their configurations, and then determining whether CSI measurement needs to be performed based on the second resource's configuration, this method is simpler and helps reduce the processing complexity of the terminal device.

[0184] In this embodiment, "CSI measurement" can be replaced with "CSI-RS transmission," and the specific use of CSI-RS is not limited. For example, CSI-RS can be used to acquire channel information, beam management, time-frequency tracking, or mobility management. Additionally, the communication method provided in this embodiment can also be applied to SSB measurement. In this case, "CSI measurement" can replace "SSB measurement," and "first resource used for CSI measurement of the first cell of the second network device" can be replaced with "first resource used for SSB measurement of the first cell." "First resource" (or "CSI-RS resource") can be replaced with "SSB resource." "CSI-RS" can be replaced with "SSB." When the first resource is used for SSB measurement of the first cell of the first network device, step S401 does not need to be executed.

[0185] The communication method provided in this application embodiment can also be applied to CSI measurement of the serving cell. In this case, "the first resource is used for CSI measurement of the first cell of the second network device" can be replaced with "the first resource is used for CSI measurement of the first cell of the first network device". When the first resource is used for CSI measurement of the first cell of the first network device, step S401 does not need to be executed.

[0186] In the embodiments provided above, the methods provided by the embodiments of this application are described using terminal devices, a first network device, and a second network device as examples. In this application, each embodiment can be implemented independently or in combination based on certain inherent connections; in each embodiment, different implementation methods can be implemented in combination or independently. To achieve the functions in the methods provided by the embodiments of this application above, the steps executed by the terminal device can be implemented by the terminal device itself, or by a functional entity including the terminal device, or by different functional entities constituting the terminal device. The steps executed by the network device can be implemented by the network device itself, or by different functional entities constituting the network device, or by a functional entity including the network device. For example, the network device is an access network device, which can be a CU-DU-RU architecture, where the DU can generate first information and the RU can send the first information. To achieve the functions in the methods provided by the embodiments of this application above, the terminal device and the network device can include hardware structures and / or software modules, implementing the above functions in the form of hardware structures, software modules, or hardware structures plus software modules. Whether a certain function is executed in the form of hardware structures, software modules, or hardware structures plus software modules depends on the specific application and design constraints of the technical solution.

[0187] Based on the same inventive concept as the method embodiments, this application provides a communication device. The communication device used to implement the above method in the embodiments of this application is described below with reference to the accompanying drawings. The content above can be used in subsequent embodiments, and repeated content will not be repeated.

[0188] Figure 5 This is a schematic block diagram of a communication device 500 provided in an embodiment of this application. The communication device 500 can correspondingly implement the functions or steps implemented by the terminal device in the various method embodiments described above. For example, the communication device 500 may be... Figure 1 The communication device 500 can be a terminal device; or, the communication device 500 can be a chip (system) in the terminal device; or, the communication device 500 can be a software module of the terminal device. Alternatively, the communication device 500 can correspondingly implement the functions or steps implemented by the first network device or the second network device in the above-described method embodiments. For example, the communication device 500 can be... Figure 1 The communication device 500 can be a network device; or, the communication device 500 can be a chip (system) within the network device; or, the communication device 500 can be a software module of the network device. The communication device 500 may include a processing module 510 and a transceiver module 520. Optionally, it may also include a storage module, which can be used to store instructions (code or programs) and / or data. This storage module may be, for example, a memory. The processing module 510 and the transceiver module 520 may be coupled to the storage module. For example, the processing module 510 can read instructions (code or programs) and / or data from the storage module to implement a corresponding method. When the communication device 500 is a chip in a terminal device, the storage module may be a storage module within the chip, such as a register, cache, etc. For example, the storage module may also be a storage module located outside the chip within the terminal device, such as a read-only memory (ROM) or other types of static storage devices capable of storing static information and instructions, such as random access memory (RAM). The above-mentioned units can be set independently, or partially or completely integrated.

[0189] Processing module 510 may be a processor or controller, such as a CPU, general-purpose processor, DSP, ASIC, FPGA, or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc. Transceiver module 520 is a transceiver, interface circuit, bus, pin, or other possible communication interface for receiving signals from other devices. For example, when the device is implemented as a chip, transceiver module 520 is an interface circuit for the chip to receive signals from other chips or devices, or an interface circuit for the chip to send signals to other chips or devices.

[0190] In one implementation, the communication device 500 can correspondingly implement the behavior and functions of the terminal device in the above method embodiments. The communication device 500 can be the terminal device itself, a component (e.g., a chip or circuit) within the terminal device, a part of a chip or chipset in the terminal device used to execute the relevant method functions, or a software module in the terminal device capable of implementing the above communication method; there are no limitations. For details, please refer to the relevant content of the foregoing method embodiments, which will not be repeated here.

[0191] For example, transceiver module 520 can be used to receive configurations of a first resource and a second resource from a first network device. The first resource is used for CSI measurement of the second network device, and the second resource is an SBFD resource in the first cell. Processing module 510 can be used to determine first information and, based on the configuration of the second resource, perform CSI-RS measurement on a third resource within the first resource. The first information indicates that CSI measurement is required based on the configuration of the second resource. The third resource does not include the uplink resources within the second resource.

[0192] As an optional implementation, the processing module 510 is specifically used to: determine the first information when the configuration of the first resource includes the configuration of the second resource; or, determine the first information when the measurement object associated with the configuration of the first resource includes the second resource; or, determine the first information when the frequency point associated with the configuration of the first resource corresponds to the second resource.

[0193] As an optional implementation, the transceiver module 520 is also configured to: receive a first field from the first network device, the first field indicating first information.

[0194] For example, transceiver module 520 can be used to receive configurations of a first resource and a second resource from a first network device, wherein the first resource is used for CSI measurement of the second network device, and the second resource is an SBFD resource in the first cell. Processing module 510 can be used to determine second information and perform CSI-RS measurement on the first resource according to the configuration of the first resource. The second information indicates that CSI measurement is not required based on the configuration of the second resource.

[0195] As an optional implementation, the processing module 510 is specifically used to: determine the second information when the configuration of the first resource does not include the configuration of the second resource; determine the second information when the measurement object associated with the configuration of the first resource does not include the second resource; or determine the second information when the frequency point associated with the configuration of the first resource does not correspond to the second resource.

[0196] As an optional implementation, the transceiver module 520 is also used to: receive a first field from the first network device, the first field indicating second information.

[0197] In one implementation, the communication device 500 can correspondingly implement the behavior and functions of the network device in the above method embodiments. The communication device 500 can be a network device, a component (e.g., a chip or circuit) within the network device, a part of a chip or chipset in the network device used to execute the relevant method functions, or a software module in the network device capable of implementing the above communication method; there are no limitations. For details, please refer to the relevant content of the foregoing method embodiments, which will not be repeated here.

[0198] For example, the transceiver module 520 can be used to receive the configuration of a first resource and a second resource from a second network device, send the configuration of the first resource and the second resource to a terminal device, and send first information to the terminal device. The first resource is used for CSI measurement of the second network device, and the second resource is an SBFD resource in the first cell. The first information is used to indicate that CSI measurement needs to be performed according to the configuration of the second resource. Alternatively, the transceiver module 520 can be used to receive the configuration of the first resource and the second resource from the second network device, send the configuration of the first resource and the second resource to the terminal device, wherein the configuration of the first resource includes the configuration of the second resource, or the measurement object associated with the configuration of the first resource includes the second resource, or the frequency point associated with the configuration of the first resource corresponds to the second resource.

[0199] As an optional implementation, the transceiver module 520 is specifically used to send first information to the terminal device when the second resource and the first resource overlap.

[0200] As an optional implementation, the transceiver module 520 is also used to: receive third information from the second network device and send first information to the terminal device according to the third information; wherein the third information is used to indicate that the terminal device needs to perform CSI measurement according to the configuration of the second resource, or, the third information indicates that the first information is sent to the terminal device, or, the third information indicates that the second resource overlaps with the first resource.

[0201] As an optional implementation, the transceiver module 520 is specifically used to send the configuration of the second resource to the terminal device when the second resource overlaps with the first resource.

[0202] As an optional implementation, the transceiver module 520 is further configured to: receive fourth information from the second network device, and send the configuration of the second resource to the terminal device according to the fourth information; wherein the fourth information is used to indicate that the terminal device needs to perform CSI measurement according to the configuration of the second resource, or, the fourth information indicates that the configuration of the second resource is sent to the terminal device, or, the fourth information indicates that the second resource overlaps with the first resource.

[0203] As an optional implementation, the transceiver module 520 is also used to: send a first request to the second network device, the first request being used to request third information.

[0204] As an optional implementation, the transceiver module 520 is also used to: send a second request to the second network device, the second request being used to request fourth information.

[0205] As an optional implementation, the transceiver module 520 is specifically used to: send the configuration of the first resource to the terminal device when the terminal device supports CSI measurement on the SBFD resource.

[0206] For example, the transceiver module 520 can be used to send the configuration of the first resource and the configuration of the second resource to the first network device, and to send CSI-RS in the third resource of the first resource. The first resource is used for CSI measurement of the second network device, and the second resource is the SBFD resource in the first cell. The third resource does not include the uplink resources in the second resource.

[0207] As an optional implementation, the configuration of the first resource includes the configuration of the second resource; the measurement object associated with the configuration of the first resource includes the second resource; or, the frequency point associated with the configuration of the first resource corresponds to the second resource.

[0208] As an optional implementation, the transceiver module 520 is also used to: send third information to the first network device; wherein the third information is used to instruct the terminal device to perform CSI measurement according to the configuration of the second resource, or the third information instructs to send first information to the terminal device, or the third information instructs the second resource to overlap with the first resource.

[0209] As an optional implementation, the transceiver module 520 is also used to: send fourth information to the first network device; wherein the fourth information is used to indicate that the terminal device needs to perform CSI measurement according to the configuration of the second resource, or, the fourth information indicates that the configuration of the second resource is sent to the terminal device, or, the fourth information indicates that the second resource overlaps with the first resource.

[0210] When the communication device 500 is a chip-based device or circuit, the transceiver module can be an input / output circuit and / or a communication interface; the processing module is an integrated processor, microprocessor, or integrated circuit.

[0211] Figure 6 This is a schematic block diagram of a communication device 600 provided in an embodiment of this application. The communication device 600 can be a terminal device, a first network device, or a second network device as described in the above embodiments. For example, the communication device 600 can be... Figure 1 The terminal device or the chip (system) within the terminal device. For example, the communication device 600 could be... Figure 1 The network device or the chip (system) within the network device. In the embodiments of this application, the chip system may be composed of a chip, or it may include chips and other discrete devices. For specific functions, please refer to the description in the above method embodiments.

[0212] The communication device 600 includes one or more processors 601, used to implement or support the communication device 600 in implementing the functions of the terminal device or network device in the methods provided in the embodiments of this application. For details, please refer to the detailed description in the method examples, which will not be repeated here. The processor 601 can also be called a processing unit or processing module, and can implement certain control functions to control the communication device 600. The processor 601 can be a general-purpose processor or a dedicated processor, etc. For example, it includes: a baseband processor, a central processing unit, an application processor, a modem processor, a graphics processor, an image signal processor, a digital signal processor, a video codec processor, a controller, a memory, and / or a neural network processor, etc. The baseband processor can be used to process communication protocols and communication data. The central processing unit can be used to control the communication device 600 (e.g., a terminal device or a network device), execute software programs, and / or process data. Different processors can be independent devices or integrated into one or more processors, for example, integrated on one or more application-specific integrated circuits.

[0213] In one design, processor 601 may include program 603 (sometimes also referred to as code or instructions), which can be executed on processor 601 to cause communication device 600 to perform the methods described in the embodiments below. In yet another possible design, communication device 600 includes circuitry (…). Figure 6 (Not shown), the circuit is used to implement the functions of the terminal device or network device in the above embodiments.

[0214] In one design, the communication device 600 may include one or more memories 602 storing a program 604 (sometimes referred to as code or instructions), which can be run on the processor 601 to cause the communication device 600 to perform the methods described in the above method embodiments.

[0215] In one design, the processor 601 and / or memory 602 may include an AI module for implementing AI-related functions. The AI ​​module may be implemented through software, hardware, or a combination of both. For example, the AI ​​module may include a RIC module. For instance, the AI ​​module may be a near real-time RIC or a non-real-time RIC.

[0216] In one possible design, the processor 601 and / or memory 602 may also store data. The processor and memory may be configured separately or integrated together.

[0217] In one possible design, the communication device 600 may further include a communication interface 605. This communication interface 605 may be a transceiver and / or antenna, or a circuit or pin, etc. The transceiver, sometimes also referred to as a transceiver unit, transceiver, transceiver circuit, or simply a transceiver, is used to implement the transmission and reception functions of the communication device 600 via an antenna.

[0218] In one possible design, the communication device 600 may further include one or more of the following components: a wireless communication module, an audio module, an external memory interface, internal memory, a universal serial bus (USB) interface, a power management module, an antenna, a speaker, a microphone, an input / output module, a sensor module, a motor, a camera, or a display screen, etc. It is understood that in some embodiments, the communication device 600 may include more or fewer components, or some components may be integrated, or some components may be separated. These components may be implemented in hardware, software, or a combination of software and hardware.

[0219] The communication device in the above embodiments can be a terminal device or a network device, a circuit, a chip applied in a terminal device or network device, or other combined devices or components having the aforementioned terminal device or network device. When the communication device is a terminal device, the transceiver module can be a transceiver, which may include an antenna and radio frequency circuits, etc., and the processing module can be a processor, such as a CPU. When the communication device is a chip system, the communication device can be an FPGA, a dedicated ASIC, a SoC, a CPU, a network processor (NP), a DSP, a microcontroller unit (MCU), a programmable logic device (PLD), or other integrated chips. The processing module can be the processor of the chip system. The transceiver module or communication interface can be the input / output interface or interface circuit of the chip system. For example, the interface circuit can be a code / data read / write interface circuit. The interface circuit can be used to receive code instructions (the code instructions are stored in memory and can be read directly from memory or through other devices) and transmit them to the processor; the processor can be used to run the code instructions to execute the methods in the above method embodiments. For example, the interface circuit can also be a signal transmission interface circuit between the communication processor and the transceiver.

[0220] This application also provides a communication system, which includes at least one terminal device and at least two network devices. The at least two network devices include a first network device and a second network device. The terminal device is used to implement the relevant functions of the terminal device in the above communication method. The first network device is used to implement the relevant functions of the first network device in the above communication method. The second network device is used to implement the relevant functions of the second network device in the above communication method.

[0221] This application also provides a computer-readable storage medium including instructions that, when run on a computer, cause the method executed by the terminal device, the first network device, or the second network device in the above-described communication method to be executed.

[0222] This application also provides a computer program product, including computer program code, which, when executed, causes the method executed by the terminal device, the first network device, or the second network device in the above-described communication method to be executed.

[0223] This application provides a chip system including a processor and potentially a memory, for implementing the functions of the terminal device, the first network device, or the second network device in the aforementioned communication method. The chip system can be composed of chips or may include chips and other discrete components.

[0224] To achieve the above Figures 5-6 In addition to the functions of the communication device, this application also provides a chip, including a processor, for supporting the communication device in implementing the functions involved in the terminal device, the first network device, or the second network device in the above method embodiments. In one possible design, the chip is connected to a memory or the chip includes a memory for storing the computer programs or instructions and data necessary for the communication device.

[0225] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0226] Those skilled in the art will recognize that the various illustrative logical blocks and steps described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0227] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0228] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0229] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0230] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essential contributing part of the technical solution of this application, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, external hard drives, ROM, RAM, magnetic disks, or optical disks.

[0231] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A communication method, characterized in that, include: The configuration of a first resource and a second resource are received from a first network device. The first resource is used for measuring the channel state information (CSI) of the second network device, and the second resource is a sub-band full-duplex (SBFD) resource in the first cell. Determine first information, which indicates that CSI measurement is required based on the configuration of the second resource; According to the configuration of the second resource, the Channel State Information Reference Signal (CSI-RS) is measured in the third resource of the first resource, wherein the third resource does not include the uplink resource of the second resource.

2. The method as described in claim 1, characterized in that, Determine the first piece of information, including: When the configuration of the first resource includes the configuration of the second resource, the first information is determined; When the measurement object associated with the configuration of the first resource includes the second resource, the first information is determined; or, When the frequency point associated with the configuration of the first resource corresponds to the second resource, the first information is determined.

3. The method as described in claim 1, characterized in that, Determine the first piece of information, including: Receive a first field from the first network device, the first field indicating the first information.

4. The method according to any one of claims 1-3, characterized in that, The first resource is configured as a CSI-RS resource.

5. A communication method, characterized in that, include: The configuration of a first resource and a second resource are received from a first network device. The first resource is used for measuring the channel state information (CSI) of the second network device, and the second resource is a sub-band full-duplex (SBFD) resource in the first cell. Determine the second information, which indicates that CSI measurement is not required based on the configuration of the second resource; Based on the configuration of the first resource, the Channel State Information Reference Signal (CSI-RS) is measured on the first resource.

6. The method as described in claim 5, characterized in that, Determine the second piece of information, including: When the configuration of the first resource does not include the configuration of the second resource, the second information is determined; When the measurement object associated with the configuration of the first resource does not include the second resource, determine the second information; or, When the frequency point associated with the configuration of the first resource does not correspond to the second resource, the second information is determined.

7. The method as described in claim 6, characterized in that, Determine the second piece of information, including: Receive a first field from the first network device, the first field indicating the second information.

8. A communication method, characterized in that, include: The configuration of a first resource and a second resource are received from a second network device. The first resource is used for measuring the channel state information (CSI) of the second network device, and the second resource is a sub-band full-duplex (SBFD) resource in the first cell. Send the configuration of the first resource and the configuration of the second resource to the terminal device, and send first information to the terminal device, the first information being used to indicate that CSI measurement needs to be performed according to the configuration of the second resource; or, send the configuration of the first resource and the configuration of the second resource to the terminal device, wherein the configuration of the first resource includes the configuration of the second resource, or the measurement object associated with the configuration of the first resource includes the second resource, or the frequency point associated with the configuration of the first resource corresponds to the second resource.

9. The method as described in claim 8, characterized in that, Sending first information to the terminal device includes: It is determined that the second resource and the first resource overlap; The first information is sent to the terminal device.

10. The method as described in claim 8, characterized in that, Sending first information to the terminal device includes: Receive third information from the second network device; The first information is sent to the terminal device according to the third information; The third information is used to indicate that the terminal device needs to perform CSI measurement according to the configuration of the second resource, or the third information indicates that the first information is sent to the terminal device, or the third information indicates that the second resource overlaps with the first resource.

11. The method as described in claim 8, characterized in that, Sending the configuration of the second resource to the terminal device includes: It is determined that the second resource overlaps with the first resource; Send the configuration of the second resource to the terminal device.

12. The method as described in claim 8, characterized in that, Sending the configuration of the second resource to the terminal device includes: Receive fourth information from the second network device; The configuration of the second resource is sent to the terminal device according to the fourth information; The fourth information is used to indicate that the terminal device needs to perform CSI measurement according to the configuration of the second resource, or the fourth information indicates that the configuration of the second resource is sent to the terminal device, or the fourth information indicates that the second resource overlaps with the first resource.

13. The method as described in claim 10, characterized in that, The method further includes: A first request is sent to the second network device, the first request being used to request the third information.

14. The method as described in claim 12, characterized in that, The method further includes: A second request is sent to the second network device, the second request being used to request the fourth information.

15. The method according to any one of claims 8-14, characterized in that, Sending the configuration of the first resource to the terminal device includes: The terminal device supports CSI measurements on SBFD resources and sends the configuration of the first resource to the terminal device.

16. A communication method, characterized in that, include: Send the configuration of a first resource and the configuration of a second resource to the first network device. The first resource is used for measuring the channel state information (CSI) of the second network device, and the second resource is the sub-band full-duplex (SBFD) resource in the first cell. The Channel State Information Reference Signal (CSI-RS) is transmitted in the third resource of the first resource, wherein the third resource does not include the uplink resource of the second resource.

17. The method as described in claim 16, characterized in that, The configuration of the first resource includes the configuration of the second resource; The measurement object associated with the configuration of the second resource includes the first resource; or, The frequency points associated with the configuration of the second resource correspond to those of the first resource.

18. The method as described in claim 16 or 17, characterized in that, The method further includes: Send a third message to the first network device; wherein the third message is used to instruct the terminal device to perform CSI measurement according to the configuration of the second resource, or the third message instructs to send the first message to the terminal device, or the third message instructs that the second resource overlaps with the first resource.

19. The method as described in claim 16 or 17, characterized in that, The method further includes: Send a fourth message to the first network device; wherein the fourth message is used to instruct the terminal device to perform CSI measurement according to the configuration of the second resource, or the fourth message instructs to send the configuration of the second resource to the terminal device, or the fourth message instructs that the second resource overlaps with the first resource.

20. A communication system, characterized in that, The device includes a first network device, a second network device, and a terminal device, wherein the terminal device is used to perform the method as described in any one of claims 1-4, the second network device is used to perform the method as described in any one of claims 5-7, and the terminal device is used to perform the method as described in any one of claims 8-15.

21. A communication device, characterized in that, The communication device includes at least one processor, the at least one processor being configured to cause the method of any one of claims 1-4 to be executed by the communication device, or the at least one processor being configured to cause the communication device to execute the method of any one of claims 5-7, or the at least one processor being configured to cause the communication device to execute the method of any one of claims 8-15, or the at least one processor being configured to cause the communication device to execute the method of any one of claims 16-19.

22. A chip or chip system, characterized in that, The chip or chip system includes: At least one processor and an interface, the at least one processor being configured to call and execute instructions from the interface, wherein when the at least one processor executes the instructions, the method as claimed in any one of claims 1-4 is executed, or the method as claimed in any one of claims 5-7 is executed, or the method as claimed in any one of claims 8-15 is executed, or the method as claimed in any one of claims 16-19 is executed.

23. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program that, when run on a computer, causes the method as described in any one of claims 1-4 to be performed, or causes the method as described in any one of claims 5-7 to be performed, or causes the method as described in any one of claims 8-15 to be performed, or causes the method as described in any one of claims 16-19 to be performed.

24. A computer program product, characterized in that, The computer program product includes a computer program that, when run on a computer, causes the method as described in any one of claims 1-4 to be performed, or causes the method as described in any one of claims 5-7 to be performed, or causes the method as described in any one of claims 8-14 to be performed, or causes the method as described in any one of claims 15-18 to be performed.

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