Communication method and communication device

Abstract

The invention provides a communication method and a communication device, which can be applied to the field of communication. In the technical scheme provided by the invention, the time domain filtering information is configured for the CSI-IM resource, and the measurement result on the CSI-IM resource configured with the same time domain filtering information can be subjected to time domain filtering, so that the accuracy of the interference measurement result can be improved.

Description

Technical Field

[0001] This application relates to the field of communications, and more particularly to communication methods and communication devices. Background Technology

[0002] In a communication system, the network side configures channel state information interference measurement (CSI-IM) resources for the terminal. The terminal performs measurements based on the configured CSI-IM resources to learn about the interference situation of neighboring cells, thereby assisting the network side in accurately performing network scheduling and interference management.

[0003] Generally speaking, the more accurate the interference measurement results, the better. Therefore, how to improve the accuracy of interference measurement results has become an urgent technical problem to be solved. Summary of the Invention

[0004] The communication method and communication device provided in this application can improve the accuracy of interference measurement results.

[0005] In a first aspect, this application provides a communication method, which includes: determining first information, the first information being used to configure time-domain filtering information for Channel State Information Interference Measurement (CSI-IM) resources, the time-domain filtering information including beam index, quasi-co-address information or time-domain filtering number information, the time-domain filtering information being used to determine interference measurement results; and sending the first information.

[0006] Because the power of signals transmitted on resources corresponding to different beam indices, quasi-co-address information, etc., may be different, and / or the power of signals received by communication devices may be different, configuring time-domain filtering information for CSI-IM resources can provide more information on the rationality of time-domain filtering when interference measurement devices perform time-domain filtering on the measurement results on CSI-IM resources to obtain interference measurement results. This can improve the rationality of time-domain filtering and thus improve the accuracy of interference measurement results.

[0007] This communication method can be executed by a communication device, or by a chip, chip system, processor, processor system, circuit unit, or circuit system configured for use in a communication device. For ease of description, the following content in this section will use a communication device as an example. This communication device can be a network device or a terminal device. As an example, the communication device is a network device.

[0008] In some possible designs, the interference measurement results are determined by time-domain filtering based on the CSI-IM resources corresponding to the same time-domain filtering information.

[0009] In this design, the measurement results on CSI-IM resources with the same time-domain filtering information are time-domain filtered, which helps to avoid the impact of different beam energy or different channels on the accuracy of the interference measurement results.

[0010] In some possible designs, the first information includes a time-domain filtering information.

[0011] In some possible designs, a CSI-IM resource configuration includes a time-domain filtering information, meaning that one CSI-IM resource corresponds to one time-domain filtering information.

[0012] Under this design, when the interference measurement device performs time-domain filtering on the measurement results of CSI-IM resources, it can directly determine how the measurement results on the CSI-IM resources should be filtered in the time domain based on the time-domain filtering information corresponding to the CSI-IM resources, or in other words, which CSI-IM resources with the same time-domain filtering information should be filtered in the time domain. This simplifies the time-domain filtering process, improves the efficiency of time-domain filtering, and thus improves the efficiency of interference measurement.

[0013] In some possible designs, the first information includes multiple time-domain filtering information.

[0014] In some possible designs, a CSI-IM resource configuration includes multiple time-domain filtering information, meaning that one CSI-IM resource corresponds to multiple time-domain filtering information.

[0015] In this design, one CSI-IM resource is used to measure multiple beams, or to measure interference on multiple channels. Because one CSI-IM resource is configured with multiple time-domain filtering information, the number of CSI-IM resources that can be configured can be reduced, thus reducing signaling overhead.

[0016] In some possible designs, the first information also includes a time-domain pattern, which is used to indicate multiple time-domain resources of the CSI-IM resource, and these multiple time-domain resources are associated with multiple time-domain filtering information.

[0017] Under this design, communication equipment can flexibly configure multiple time-domain filtering information corresponding to multiple time-domain resources of CSI-IM resources.

[0018] In some possible designs, the first information also includes quantity information of time-domain filtering information and / or subcarrier spacing information, which are used to determine the association between multiple time-domain resources of CSI-IM resources and time-domain filtering information.

[0019] This implementation method allows for flexible configuration of the association between multiple time-domain resources and time-domain filtering information of CSI-IM resources.

[0020] In some possible designs, this communication method further includes: sending second information, which is used to configure channel state information-reference signal (CSI-RS) resources, the CSI-RS resources corresponding to one or more CSI-IM resources.

[0021] Under this scheme, when performing channel measurements based on CSI-RS resources, interference measurements can be performed based on one or more CSI-IM resources. This enables the measurement of interference from one or more neighboring cells / channels during channel measurements, ensuring the timeliness and flexibility of interference measurements.

[0022] In some possible designs, this communication method further includes sending third information, which indicates whether or not to report the interference measurement results. Optionally, the third information may indicate the reporting method for the interference measurement results.

[0023] In this design, the reporting methods for interference measurement results can include periodic reporting, semi-persistent reporting, and non-periodic reporting, in order to reduce the channel occupation during the reporting process. The reporting method is determined according to the requirements to avoid excessive reporting overhead.

[0024] In some possible designs, interference measurements include signal quality information and / or channel state information.

[0025] In some possible designs, this communication method further includes sending a fourth message indicating the maximum number of interference measurement results to be reported and / or a reporting threshold. For example, the CSI-IM resource ID with the highest value in the interference measurement-reference signal received power (IM-RSRP) among the reported signal quality information is prioritized.

[0026] In this design, the number and / or threshold of interference measurement results reported are limited, which reduces reporting overhead compared to reporting IM-RSRP for each CSI-IM resource.

[0027] In some possible designs, this communication method also includes: the network device receiving interference measurement results.

[0028] In some possible designs, the reported interference measurement results include at least one of the following: time-domain filtering information corresponding to the interference measurement results, or identification information of the CSI-IM resource corresponding to the interference measurement results. This design enables network devices to correlate interference measurement results with time-domain filtering information, determine which beams or channels the interference measurement results pertain to, and thus accurately utilize the interference measurement results for relevant processing to improve communication performance.

[0029] In some possible designs, this communication method further includes sending a fifth message, which indicates a time-domain filtering threshold parameter used to determine the interference measurement results. This design avoids performing time-domain filtering on measurement results that do not require it, thereby improving both the accuracy of the interference measurement results and the efficiency of time-domain filtering.

[0030] In some possible designs, the interference measurement results are determined by time-domain filtering based on CSI-IM resources that correspond to the same time-domain filtering information and satisfy the time-domain filtering threshold parameters.

[0031] In this design, CSI-IM resources configured with the same time-domain filtering information are subjected to threshold filtering to avoid the impact of different beam energy or different channels on the accuracy of interference measurement.

[0032] Secondly, this application provides a communication method, which includes: receiving first information, the first information being used to configure time-domain filtering information for a first channel state information interference measurement (CSI-IM) resource, the time-domain filtering information including beam index, quasi-co-location information, or time-domain filtering number information; and performing interference measurement based on the first information.

[0033] This communication method can be executed by a communication device, or by a chip, chip system, processor, processor system, circuit unit, or circuit system configured for use in a communication device. For ease of description, the following content in this section will use a communication device as an example. This communication device can be a network device or a terminal device. As an example, the communication device is a terminal device.

[0034] In some possible designs, the interference measurement results are determined by time-domain filtering based on the CSI-IM resources corresponding to the same time-domain filtering information.

[0035] The impact of different channels on the accuracy of interference measurements.

[0036] In some possible designs, the first information includes a time-domain filtering information.

[0037] In some possible designs, a CSI-IM resource configuration includes a time-domain filtering information, meaning that one CSI-IM resource corresponds to one time-domain filtering information.

[0038] In some possible designs, the first information includes multiple time-domain filtering information.

[0039] In some possible designs, a CSI-IM resource configuration includes multiple time-domain filtering information, meaning that one CSI-IM resource corresponds to multiple time-domain filtering information.

[0040] In some possible designs, the first information also includes a time-domain pattern, which is used to indicate multiple time-domain resources of the CSI-IM resource, and the multiple time-domain resources indicated are associated with multiple time-domain filtering information.

[0041] In some possible designs, the first information also includes the quantity of time-domain filtering information and / or subcarrier spacing information, which are used to determine the correlation.

[0042] In some possible designs, this communication method further includes: sending second information for configuring CSI-RS resources, which correspond to one or more CSI-IM resources.

[0043] In some possible designs, this communication method further includes sending third information, which indicates whether or not to report the interference measurement results. Optionally, the third information may indicate the reporting method for the interference measurement results.

[0044] In some possible designs, interference measurements include signal quality information and / or channel state information.

[0045] In some possible designs, this communication method further includes sending a fourth message, which indicates the maximum number of interference measurement results to be reported and / or a reporting threshold.

[0046] In some possible designs, this communication method also includes transmitting interference measurement results.

[0047] In some possible designs, the reported interference measurement results include at least one of the following: time-domain filtering information corresponding to the interference measurement results, or identification information of the CSI-IM resource corresponding to the interference measurement results.

[0048] In some possible designs, this communication method further includes: sending a fifth message, which indicates a time-domain filtering threshold parameter used to determine the interference measurement result.

[0049] In some possible designs, the interference measurement results are determined by time-domain filtering based on CSI-IM resources that correspond to the same time-domain filtering information and satisfy the time-domain filtering threshold parameters.

[0050] Thirdly, this application provides a communication device. This communication device may include modules corresponding to the methods / operations / steps / actions described in the first aspect or any possible implementation of the first aspect. These modules may be hardware circuits, software, or a combination of hardware circuits and software.

[0051] In one design, the device may include a processing module and a communication module. The communication module is used to perform the sending and receiving actions in the method described in the first aspect or any possible implementation thereof, while the processing module is used to perform the processing actions involved in the method described in the first aspect or any possible implementation thereof.

[0052] In one design, the device can be a terminal device, or a device, module, circuit, or chip configured in the terminal device, or a device that can be used in conjunction with the terminal device.

[0053] In one design, the device can be a network device, or a device, module, circuit, or chip configured in the network device, or a device that can be used in conjunction with the network device.

[0054] Fourthly, this application provides a communication device. This communication device may include modules corresponding to the methods / operations / steps / actions described in the second aspect or any possible implementation thereof.

[0055] In one design, the device may include a processing module and a communication module. The communication module is used to perform the sending and receiving actions in the method described in the second aspect or any possible implementation thereof, while the processing module is used to perform the processing actions involved in the method described in the second aspect or any possible implementation thereof.

[0056] In one design, the device can be a terminal device, or a device, module, circuit, or chip configured in the terminal device, or a device that can be used in conjunction with the terminal device.

[0057] In one design, the device can be a network device, or a device, module, circuit, or chip configured in the network device, or a device that can be used in conjunction with the network device.

[0058] Fifthly, an apparatus is provided, including a processor, wherein instructions, when executed by the processor, cause a method as described in the first aspect or any possible implementation thereof to be implemented.

[0059] Optionally, the device may further include a storage medium that stores the instructions executed by the processor.

[0060] A sixth aspect provides an apparatus including a processor, wherein instructions, when executed by the processor, cause the method as described in the second aspect or any possible implementation thereof to be implemented.

[0061] Optionally, the device may further include a storage medium that stores the instructions executed by the processor.

[0062] In a seventh aspect, a chip is provided, including processing circuitry for running a program or instructions to cause the methods described in the first aspect or any possible implementation thereof to be implemented.

[0063] Optionally, the chip may further include a memory for storing programs or instructions.

[0064] Optionally, the chip may also include the transceiver circuit, or an input / output interface.

[0065] Eighthly, a chip is provided, including processing circuitry for running a program or instructions to implement a method as described in the second aspect or any possible implementation thereof.

[0066] Optionally, the chip may further include a memory for storing programs or instructions.

[0067] Optionally, the chip may also include the transceiver circuit, or an input / output interface.

[0068] A ninth aspect provides a computer-readable storage medium comprising instructions that, when executed by a processor, cause the method as described in the first aspect or any possible implementation thereof to be implemented.

[0069] In a tenth aspect, a computer-readable storage medium is provided, the computer-readable storage medium including instructions that, when executed by a processor, cause the method as described in the second aspect or any possible implementation thereof to be implemented.

[0070] Eleventhly, a computer program product is provided, the computer program product including computer program code or instructions, which, when the computer program code or instructions are run, cause the method as described in the first aspect or any possible implementation thereof to be implemented.

[0071] In a twelfth aspect, a computer program product is provided, the computer program product comprising computer program code or instructions that, when the computer program code or instructions are executed, cause the method as described in the second aspect or any possible implementation thereof to be implemented.

[0072] In a thirteenth aspect, a communication system is provided, comprising: means for performing the first aspect or any possible implementation thereof, and means for performing the second aspect or any possible implementation thereof.

[0073] It is understood that the technical effects of any of the second to thirteenth aspects of this application can be referred to the relevant content in the first aspect, and will not be repeated here. Attached Figure Description

[0074] Figure 1a This is an example diagram of a communication system applicable to the communication method in the embodiments of this application;

[0075] Figure 1b This is an example diagram of a communication system applicable to the communication method in the embodiments of this application;

[0076] Figure 2 This is a schematic diagram of the application scenario beam that is applicable to the embodiments of this application;

[0077] Figure 3 This is a schematic diagram illustrating different channel power relationships applicable to embodiments of this application;

[0078] Figure 4a This is a frame structure diagram of a communication system applicable to embodiments of this application;

[0079] Figure 4b This is a time slot and subframe relationship diagram applicable to embodiments of this application;

[0080] Figure 5 This is an example diagram of symbol types and slot formats applicable to embodiments of this application;

[0081] Figure 6 This is a frequency domain resource distribution map applicable to embodiments of this application;

[0082] Figure 7 This is a frequency domain resource distribution map applicable to embodiments of this application;

[0083] Figure 8 This is an example diagram of a communication system applicable to embodiments of this application;

[0084] Figure 9 This is an example diagram of a communication system applicable to embodiments of this application;

[0085] Figure 10 This is an example diagram of a communication system applicable to embodiments of this application;

[0086] Figure 11 This is an example diagram of a communication system applicable to embodiments of this application;

[0087] Figure 12 This is an example diagram of the CSI-IM resource pattern mode applicable to embodiments of this application;

[0088] Figure 13 This is a schematic diagram of interference measurement applicable to embodiments of this application;

[0089] Figure 14 This is a schematic diagram of interference measurement applicable to embodiments of this application;

[0090] Figure 15 This is an example diagram of a communication method applicable to embodiments of this application;

[0091] Figure 16 This is a schematic diagram of interference measurement applicable to embodiments of this application;

[0092] Figure 17 This is a schematic diagram of interference measurement applicable to embodiments of this application;

[0093] Figure 18 This is a schematic diagram of a time-domain pattern applicable to embodiments of this application;

[0094] Figure 19 This is a schematic diagram of a time-domain pattern applicable to embodiments of this application;

[0095] Figure 20 This is a schematic diagram of a time-domain pattern applicable to embodiments of this application;

[0096] Figure 21 This is a schematic diagram of a time-domain pattern applicable to embodiments of this application;

[0097] Figure 22 This is a schematic diagram of a time-domain pattern applicable to embodiments of this application;

[0098] Figure 23 This is a schematic diagram of time-domain averaging applicable to embodiments of this application;

[0099] Figure 24 This is a schematic diagram of the structure of a communication device applicable to the embodiments of this application;

[0100] Figure 25 This is a schematic diagram of the structure of a communication device applicable to the embodiments of this application;

[0101] Figure 26 This is a schematic diagram of the system architecture applicable to the embodiments of this application;

[0102] Figure 27 This is a schematic diagram of the system architecture applicable to the embodiments of this application;

[0103] Figure 28 This is a schematic diagram of the device function division applicable to the embodiments of this application. Detailed Implementation

[0104] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0105] To facilitate a clear description of the technical solutions in the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" are not necessarily different.

[0106] It should be noted that, in the embodiments of this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design scheme described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0107] In this application embodiment, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "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 can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0108] The technical solution of this application is applicable to wireless communication systems, such as: 5th generation (5G) or new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, wireless local area network (WLAN) systems, satellite communication systems, future mobile communication systems, or integrated systems of multiple systems, etc.

[0109] The technical solutions provided in this application can also be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), and Internet of Things (IoT) communication systems or other communication systems.

[0110] In a communication system, one network element can send signals to or receive signals from another network element. These signals can include information, signaling, or data. The term "network element" can also be replaced by an entity, network entity, device, communication equipment, communication module, node, communication node, etc. This application uses a device as an example. For instance, a communication system can include at least one terminal device and at least one network device. The network device can send downlink signals to the terminal device, and / or the terminal device can send uplink signals to the network device.

[0111] In the embodiments of this application, the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user apparatus.

[0112] Terminal devices can be devices that provide voice / data, such as handheld devices with wireless connectivity, in-vehicle devices, etc. Currently, examples of terminals include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, wearable devices, terminal devices in 5G networks, or future public land mobile communication networks. Terminal devices in a network (PLMN), etc., are not limited to this in the embodiments of this application.

[0113] Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, and integrated communication and sensing. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, aircraft, ships, robots, robotic arms, smart home devices, sensors, etc. The embodiments of this application do not limit the specific technologies or device forms used in the terminals.

[0114] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0115] In this embodiment, the device for implementing the functions of the terminal device can be the terminal device itself, or it can be any device capable of supporting the terminal device in implementing those functions, such as a chip system. This device can be installed in or used in conjunction with the terminal device. In this embodiment, the chip system can be composed of chips or may include chips and other discrete components. This embodiment only uses the terminal device as an example to illustrate the device for implementing the functions of the terminal device, and does not constitute a limitation on the solution of this embodiment.

[0116] The network device in this application embodiment can be a device used to communicate with a terminal device. This network device can also be called an access network device or a wireless access network device, such as a base station. In this application embodiment, the network device can refer to a radio access network (RAN) node (or device) that connects the terminal device to the wireless network. A base station can broadly encompass, or be replaced by, various names including: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master station, auxiliary station, motor slide retainer (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), radio unit (RU), positioning node, etc. A base station can be a macro base station, micro base station, relay node, donor node, or similar entities, or combinations thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. A base station can also be a mobile switching center, equipment performing base station functions in D2D, V2X, and M2M communications, network equipment in future communication networks, or equipment performing base station functions in future communication systems. A base station can support networks using the same or different access technologies. Optionally, a RAN node can also be a server, wearable device, vehicle, or in-vehicle equipment. For example, the access network equipment in vehicle-to-everything (V2X) technology can be a roadside unit (RSU). The embodiments of this application do not limit the specific technologies or equipment forms used in the network equipment.

[0117] Network equipment can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move depending on the location of that mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.

[0118] In this embodiment, the apparatus for implementing the functions of a network device can be a network device itself; it can also be an apparatus capable of supporting the network device in implementing those functions, such as a chip system, hardware circuit, software module, or a hardware circuit plus a software module. This apparatus can be installed in the network device or used in conjunction with the network device. In this embodiment, the example of a network device being used to implement the functions of a network device is provided only and does not constitute a limitation on the solutions described in this embodiment.

[0119] Network devices and / or terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and terminal devices are located. Furthermore, terminal devices and network devices can be hardware devices, or software functions running on dedicated hardware or general-purpose hardware, such as virtualization functions instantiated on a platform (e.g., a cloud platform), or entities that include dedicated or general-purpose hardware devices and software functions. This application does not limit the specific form of the terminal devices and network devices.

[0120] In another possible scenario, multiple RAN nodes collaborate to assist the terminal in achieving wireless access, with different RAN nodes each implementing some of the base station's functions. For example, RAN nodes can be CUs, DUs, CUs (control plane, CP), CUs (user plane, UP), or radio units (RUs). CUs and DUs can be set up separately or included in the same network element, such as a baseband unit (BBU). RUs can be included in radio frequency equipment or radio frequency units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs).

[0121] 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 open access network (open RAN, O-RAN, or 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. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.

[0122] Communication between access network devices and terminal devices follows a specific protocol layer structure. This protocol layer may include a control plane protocol layer and a user plane protocol layer. The control plane protocol layer may include at least one of the following: radio resource control (RRC) layer, packet data convergence protocol (PDCP) layer, radio link control (RLC) layer, media access control (MAC) layer, or physical (PHY) layer, etc. The user plane protocol layer may include at least one of the following: service data adaptation protocol (SDAP) layer, PDCP layer, RLC layer, MAC layer, or physical layer, etc.

[0123] The correspondence between network elements and their achievable protocol layer functions in the ORAN system can be found in Table 1 below.

[0124] Table 1

[0125] ORAN network elements 3GPP protocol layer functions O-CU-CP RRC+PDCP-Control Plane (PDCP-C) O-CU-UP SDAP+PDCP - User Plane (PDCP-U) O-DU RLC+MAC+PHY-high O-RU PHY-low

[0126] Network devices can be other devices that provide wireless communication functions for terminal devices. The embodiments of this application do not limit the specific technology or form of the network device. For ease of description, the embodiments of this application are not limited.

[0127] Network equipment may also include core network equipment, such as the Mobility Management Entity (MME), Home Subscriber Server (HSS), Serving Gateway (S-GW), Policy and Charging Rules Function (PCRF), and Public Data Network Gateway (PDN Gateway, P-GW) in 4G networks; and access and mobility management functions (AMF), user plane functions (UPF), or session management functions (SMF) in 5G networks. Furthermore, this core network equipment may also include other core network equipment in 5G networks and future communication networks.

[0128] In this application embodiment, the device for implementing the function of the network device can be the network device itself, or it can be a device capable of supporting the network device in implementing that function, such as a chip system, which can be installed in the network device. In the technical solutions provided in this application embodiment, the example of a network device being used to implement the function of the network device is used to describe the technical solutions provided in this application embodiment.

[0129] To facilitate understanding of the methods provided in the embodiments of this application, the system architecture of the methods provided in the embodiments of this application will be described below. It is understood that the system architecture described in the embodiments of this application is for the purpose of more clearly illustrating the solutions of the embodiments of this application and does not constitute a limitation on the solutions provided in the embodiments of this application.

[0130] Please see Figure 1a This is a schematic diagram of the architecture of the communication system 1000 used in an embodiment of this application. Figure 1a As shown, the communication system includes RAN 100 and core network 200. Optionally, the communication system 1000 may also include Internet 300. RAN 100 includes at least one RAN node (e.g., Figure 1a 110a and 110b, collectively referred to as 110, may also include at least one terminal (such as...). Figure 1a RAN 100, denoted as RAN 120a-120j, is collectively referred to as RAN 120. RAN 100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment. Figure 1a(Not shown in the image). Terminal 120 connects wirelessly to RAN node 110, and RAN node 110 connects wirelessly or via a wired connection to core network 200. The core network equipment in core network 200 and RAN node 110 in RAN 100 can be independent physical devices, or they can be the same physical device integrating the logical functions of core network equipment and RAN nodes. Terminals can connect to each other, and RAN nodes can connect to each other, via wired or wireless connections.

[0131] In one possible implementation, this application can be applied to long-term evolution (LTE) wireless communication systems, NR wireless communication systems, and future new radio (NR) wireless communication systems. For example, this application can be applied to orthogonal frequency division multiplexing (OFDM) systems in LTE, OFDM systems in NR, future OFDM systems, and OFDM-like systems.

[0132] Figure 1b This is an example diagram of a communication system applicable to the communication method in the embodiments of this application. For example... Figure 1b As shown, the communication system includes at least one network device, such as... Figure 1b The network device 110 shown; the communication system also includes at least one terminal device, such as Figure 1b The terminal device 120 is shown. The network device 110 and the terminal device 120 can communicate via a wireless link. The various communication devices in this communication system, for example, the network device 110 and the terminal device 120, can communicate via multi-antenna technology.

[0133] In practical applications, this communication system may include multiple network devices or multiple terminal devices. This application does not limit the number of network devices and terminal devices included in the communication system.

[0134] In some application scenarios, network devices will semi-statically / periodically send synchronization signal blocks (SSBs), semi-statically send control resource sets (CORESETs), and dynamically send physical downlink shared channels (PDSCHs). The power and beamwidth can vary depending on the channel.

[0135] like Figure 2As shown, different types of channels have different coverage areas. SSB (Synchronization Signal) is used for cell search and synchronization. Its design aims to provide coverage throughout the entire cell to ensure that the terminal can detect the cell and synchronize. Therefore, SSB typically requires a wide coverage area so that the terminal can receive the synchronization signal at different locations within the cell.

[0136] CORESET is a resource set used to transmit control information. Its coverage is related to SSB and is specifically optimized for certain parts of the cell depending on the specific configuration.

[0137] PDSCH is a physical channel used for downlink data transmission. Its coverage depends on a variety of factors, including the scheduled DMRS, CORESET configuration, and beamforming strategy. The transmission quality of PDSCH can vary depending on user location and channel conditions, so its coverage may be narrower than SSB and CORESET in some cases, especially when using user-level dynamic beamforming.

[0138] like Figure 3 The diagram shows the power relationship between different channels, with the power of the secondary synchronization signal (SSS) ranging from -60 to 50 dBm as the reference. The vertical axis represents the power, and the arrows in the diagram indicate the direction of power change.

[0139] For example, the power change from SSS to the physical downlink control channel (PDCCH) is -8 or 8 dB. Those skilled in the art will understand that a change of -8 dB means the PDCCH power is 10 times that of the SSS. -0.8 The change of 8 dB refers to the PDCCH being 10 times the SSS power. 0.8 Similarly, the power of the primary synchronization signal (PSS) changes by 0 or 3 dB from the SSS. Those skilled in the art will understand that a 0 dB change means no change, while a 3 dB change means the PSS is 10 times the power of the SSS. 0.3 times.

[0140] In some possible implementations, the concept of a parameter set, Numerology, is introduced. Numerology includes sub-carrier spacing (SCS) and corresponding parameters such as symbol length and cycle prefix (CP) length. Since there is a certain mapping relationship between SCS and symbol length / CP length, SCS is often used to replace Numerology. The relationship between μ (μ is a natural number), SCS, CP length, and supported frequency range is shown in Table 2.

[0141] Table 2 shows the relationship between μ, SCS, CP length and supported frequency range.

[0142] μ SCS CP Supported frequency range 0 15 Normal FR1 1 30 Normal FR1 2 60 Normal, Extended FR1,FR2 3 120 Normal FR2 4 240 Normal FR2

[0143] In Table 2, μ represents the subcarrier spacing index, CP length includes the normal CP length and the extended CP length, and FR represents the frequency range (FR).

[0144] In some possible implementations, the time-domain units of the system include symbols, slots, subframes, half-frames, and frames. A frame has a duration of 10 ms and can be divided into 10 subframes, numbered 0-9. Subframes numbered 0-4 form a half-frame, and subframes numbered 5-9 form another half-frame. Each subframe has a duration of 1 ms. Each subframe can include one or more slots. Under a normal cyclic prefix (CP), each slot can include 14 symbols; under an extended CP, each slot can include 12 symbols. Specifically, the relationship between the number of slots in each subframe and the SCS is shown in Table 3.

[0145] Table 3 shows the relationship between SCS and the number of time slots included in each subframe.

[0146]

[0147] In some scenarios, the frame structure used by this communication system is as follows: Figure 4a As shown.

[0148] In the time domain, an exemplary frame structure is as follows: Frame, length can be 10ms, frame number range can be 0 to 1023, frame can be divided into 10 subframes; Subframe, length can be 1ms, subframe number range can be 0 to 9; Time slot, a time segment within a subframe is a time segment used for data transmission, and is the smallest unit of data scheduling. When using a normal cyclic prefix, the length can be 14 symbols; Symbol: the smallest unit of modulation, the length of which is not fixed and is related to SCS.

[0149] For example, the scheduling time unit in the data domain can be a time slot. The number of symbols in the length of a time slot can be fixed, and the length of a symbol is related to the SCS, so the length of the time slot can be variable. For example, when SCS = 15 kHz, there is one time slot in each subframe (e.g., 1 ms); or when SCS = 120 kHz, there are eight time slots in each subframe (1 ms).

[0150] For example, although the number of symbols in a time slot is fixed, the symbol length is related to the SCS (Search Count). Taking SCS of 30kHz and 120kHz as examples, the relationship between frames, subframes, time slots, and symbols is as follows: Figure 4b As shown.

[0151] Figure 4b In this context, when SCS = 30kHz, one radio frame includes 10 subframes, one subframe includes 2 time slots, and one time slot includes 14 symbols; when SCS = 120kHz, one radio frame includes 10 subframes, one subframe includes 8 time slots, and one time slot includes 14 symbols.

[0152] In some possible implementations, such as Figure 5 As shown, there are three types of symbols: 5-1, used for downlink transmission, called downlink; 5-2, used for uplink transmission, called uplink; and 5-3, flexible, which can be used for both uplink and downlink transmissions, and can also be used as a protection period (GP) or reserved resource, called flexible. Figure 5 Different patterns and blank spaces represent different symbol types.

[0153] In some possible implementations, each slot can be freely combined from these three types of symbols to form various slot formats.

[0154] For example, in Figure 5 In the example, 5-4, the slot consists of downlink and flexible; in 5-5, the slot consists of flexible and uplink; in 5-6, the slot consists of downlink, flexible, and uplink. Similarly, 5-7 and 5-8 also consist of three symbols.

[0155] Those skilled in the art will understand that, for ease of explanation, Figure 5 Several combination methods are shown in the paper, and multiple combination methods can exist in actual methods. This application does not impose any restrictions on this.

[0156] exist Figure 5In this context, slots 5-6 and 5-7 are also known as self-contained slots, corresponding to two different structures of self-contained slots.

[0157] Downlink dominant slot (DL-dominant slot): i.e. 5-6. In this slot, the main purpose is to transmit downlink data. At the same time, a small number of symbols are time-division multiplexed to transmit uplink control signals, such as the downlink hybrid automatic repeat request feedback, thereby shortening the downlink hybrid automatic repeat request feedback delay.

[0158] Uplink primary slot (UL-dominant slot): i.e. 5-7. In this slot, the main purpose is to transmit uplink data. At the same time, a small number of symbols are time-division multiplexed to transmit downlink control signals, such as the uplink scheduling indication in PDCCH, thereby shortening the uplink scheduling delay.

[0159] In a self-contained time slot design, network devices and terminals need to switch between uplink and downlink transmissions within a slot. By reserving a protection time and not sending or receiving any signals during the protection time, it is ensured that the device can work normally after the switch.

[0160] like Figure 6 The image shown is a frequency domain resource distribution diagram according to this application.

[0161] A Resource Element (RE) is the smallest physical layer resource, consisting of one subcarrier in the frequency domain and one OFDM symbol in the time domain.

[0162] A resource block (RB) is the basic unit of channel resource allocation in the frequency domain. It can contain 12 subcarriers in the frequency domain, and the subcarrier spacing is variable. Therefore, the actual bandwidth of an RB is also variable.

[0163] A Resource Grid (RG) is a collection of time-frequency resources for each carrier under different numberologies. An RG contains all subcarriers in the frequency domain and all symbols within a single subframe in the time domain, with the frequency domain starting at the granularity of RBs. Since different numberologies correspond to different SCSs, and an RB comprises 12 subcarriers, the number of RBs in an RG differs depending on the numberology for the same transmission bandwidth. An RG is equivalent to one subframe in the time domain. Furthermore, uplink and downlink each define their own RGs.

[0164] In some possible implementations, a common resource block (CRB) can be understood as a collective term for all resource blocks (RBs) in the system. Numbered starting from 0, the center frequency point of subcarrier number 0 in CRB0 is Point A.

[0165] A physical resource block (PRB) refers to the resource blocks (RBs) contained in the bandwidth part (BWP) of a UE in a communication system. They are also numbered starting from 0 and are the basic unit of data channel scheduling.

[0166] A resource block group (RBG) is a combination of several resource block blocks (PRBs) within a resource window control panel (BWP). These PRBs are numbered starting from 0 and are the basic unit for data channel scheduling. An RBG can contain {2, 4, 8, 16} PRBs, the specific number depending on the number of RBs in the BWP and the configuration options, as shown in Table 4.

[0167] Table 4 shows cases where RBG contains the number of RBs.

[0168]

[0169] The Physical Reception Link Control Channel (PRxCCH) is a physical layer control channel. Generally, standard protocols describe it from the perspective of the terminal device; it's the physical layer control channel received by the terminal device, similar in function to the PDCCH in LTE and 5G. PRxCCH may be a new physical layer control channel introduced in future communication systems. Of course, future communication systems may still use PDCCH to represent the physical downlink control channel or physical transmit link control channel of the terminal device.

[0170] The Physical Reception Link Shared Channel (PRxSCH) is a physical layer data channel. Generally, standard protocols describe it from the perspective of the terminal device; it's the physical layer data channel received by the terminal device, similar in function to the PDSCH in LTE and 5G. PRxSCH may be a newly introduced physical layer data channel in future communication systems. However, future communication systems may still use PDSCH to represent the physical downlink data channel or physical receive link data channel of the terminal device.

[0171] The Physical Transmission Link Control Channel (PTxCCH) is a physical layer control channel. Generally, standard protocols describe it from the perspective of the terminal device; it's the physical layer control channel transmitted by the terminal device, similar in function to the PUCCH in LTE and 5G. PTxCCH may be a new physical layer control channel introduced in future communication systems. However, future communication systems may still use PUCCH to represent the physical uplink control channel or physical transmission link control channel of the terminal device.

[0172] The Physical Transmission Link Shared Channel (PTxSCH) is a physical layer data channel. Generally, standard protocols describe it from the perspective of the terminal device; it's the physical layer data channel transmitted by the terminal device, similar in function to the PUSCH in LTE and 5G. PTxSCH may be a newly introduced physical layer data channel in future communication systems. Of course, future communication systems may still use PUSCH to represent the physical uplink data channel or physical receive link data channel of the terminal device.

[0173] Optionally, from the perspective of the terminal device, downlink can be described as receiving; and from the perspective of the terminal device, uplink can be described as sending.

[0174] like Figure 7 The diagram shown is a frequency domain resource distribution map according to this application. The resource element group (REG) is the basic unit of control channel resources. One REG represents 12 subcarriers in the frequency domain, i.e., the width of one PRB, and one OFDM symbol in the time domain.

[0175] The control channel element (CCE) is the basic unit for control channel resource scheduling. One CCE consists of 6 REGs in the frequency domain.

[0176] As an example, a RAN node can be a satellite base station or a satellite, as described below. Figure 8 and Figure 9 illustrate.

[0177] Figure 8This is an example diagram of a communication system applicable to the communication method of this application embodiment, including a satellite base station and terminal type network elements. The satellite base station provides communication services to the terminal device. The satellite base station transmits downlink data to the terminal, wherein the data is encoded using channel coding, and the channel-coded data is transmitted to the terminal after constellation modulation; the terminal transmits uplink data to the satellite base station, the uplink data can also be encoded using channel coding, and the encoded data is transmitted to the satellite base station after constellation modulation. The satellite base station can also communicate with other base stations. The satellite can act as both a base station and a terminal device.

[0178] For example, terminal devices include smartphones, smartwatches, tablets, and other devices.

[0179] For example, a satellite can be a drone, a hot air balloon, a low-Earth orbit satellite, a medium-Earth orbit satellite, a high-Earth orbit satellite, etc. A satellite can also refer to a non-terrestrial base station or non-terrestrial equipment.

[0180] As one implementation method, this application can be applied to satellite inter-satellite link communication systems.

[0181] Figure 9 This is an example diagram of a communication system applicable to the communication method of this application embodiment. The inter-satellite link communication system can be divided into two main parts: an acquisition pointing and tracking (APT) subsystem (including an ATP module and ATP transmitter / receiver) and a communication subsystem (including a communication module and transceiver antennas). The communication subsystem is responsible for the transmission of inter-satellite information; exemplarily, the transmission of information between satellite 1 and satellite 2 constitutes the main body of the inter-satellite communication system, including a communication module and transceiver antennas. The APT system is used to achieve reliable communication between satellites or between a satellite and a ground station. APT technology ensures that the communicating parties can accurately align and maintain the communication link, even when their relative positions are constantly changing. The system consists of a coarse aiming (coarse tracking) subsystem, a fine aiming (fine tracking) subsystem, and a signal processing and control subsystem. These subsystems achieve accurate acquisition, pointing, and tracking of the target to ensure that the error between the communication beam and the system optical axis is controlled within a certain range.

[0182] It should be understood that current APT systems are all optical systems, which have the disadvantage of being difficult to align and requiring mechanical adjustment of the pointing. Most existing communication subsystems are optical communication systems, with some microwave band systems, and most use a single high-gain antenna. Existing APT systems and communication subsystems are independent systems. The disadvantages are that optical communication is susceptible to vibration and other factors, resulting in unstable data rates; millimeter-wave frequencies are low, communication capacity is low, and the antenna requires mechanical adjustment of its pointing.

[0183] As another implementation, this application can be applied to scenarios where terminal devices communicate with each other, such as Internet of Things (IoT) communication systems.

[0184] Figure 10 This is an example diagram of a communication system applicable to the communication method of this application embodiment, which includes a display device and a terminal type network element. After the terminal network element detects the display device, it establishes a connection with the display device and performs data transmission to complete the delivery of audio and video content.

[0185] For example, terminal devices include devices such as smartphones and tablets.

[0186] It should be understood that Figure 10 The screen mirroring scenario shown can be seen as an example of communication between terminal devices, where both smartphones and televisions can be considered as terminal devices.

[0187] As another implementation method, this application can be applied to integrated access and backhaul (IAB) systems.

[0188] Figure 11 This diagram illustrates an example of a communication system applicable to the communication method described in this application. The communication system addresses both the backhaul link and the access link, employing an integrated access and backhaul (IAB) architecture. It includes an IAB parent node (IAB Doner), IAB nodes, and terminal devices. The link between the IAB Doner and the IAB node is the backhaul link, and the link between the terminal device and the IAB node is the access link.

[0189] It should be understood that the above system application scenarios are only examples, and this application can also be applied to other scenarios, which will not be listed here.

[0190] In some possible implementations, network devices configure CSI-IM resources for terminal devices. These CSI-IM resources are used to measure interference from neighboring cells or other channels. These resources can be configured with specific time and frequency patterns so that user equipment can accurately estimate interference levels. The configuration of CSI-IM resources includes the selection of a resource pattern, which determines the specific distribution of resource elements in time and frequency.

[0191] Optionally, time can refer to time-domain resources, and frequency can refer to frequency-domain resources.

[0192] like Figure 12As shown, CSI-IM resources have two possible RE modes. Mode 0, or pattern 0, occupies two consecutive subcarriers and two consecutive symbols. Mode 1, or pattern 1, occupies four consecutive subcarriers on one symbol.

[0193] CSI-IM resources only measure interference power, which is considered when calculating the channel quality indicator (CQI). During interference power calculation, the terminal device assumes that the received power of the four REs in the CSI-IM pattern is under the same channel interference, and therefore averages them.

[0194] In some possible implementations, channel measurements / interference measurements are configured to either have time-domain constraints. If time-domain constraints are configured, reports are made only based on the most recent measurement; if no time-domain constraints are configured, calculations can be made and reported based on multiple previous measurements. For example... Figure 13 In (a), channel measurement / interference measurement is not configured with time-domain limitations; calculations are performed and reported based on multiple measurements. Figure 13 If a time-domain limitation is configured for channel / interference measurement in (b) mode, only the most recent measurement will be reported.

[0195] In some possible implementations, one CSI-RS resource for channel measurement can correspond to one CSI-IM resource for interference measurement; alternatively, multiple (e.g., at least two) CSI-RS resources for channel measurement can correspond to one CSI-IM resource for interference measurement, or multiple (e.g., at least two) CSI-RS resources for channel measurement can correspond to multiple (e.g., at least two) CSI-IM resources for interference measurement. This application does not limit this. In some possible implementations, the CSI-RS resources performing multiple channel measurements have the same time-domain configuration, i.e., they all undergo time-domain averaging. Figure 14 In (a), the time-domain averaged result is reported to CSI, or, as... Figure 14 In (b), no time-domain averaging is performed; reports are based solely on the most recent measurement. Figure 14 CSI-RS1 channel measurement (CM) is used to measure the first channel; CSI-RS2CM is used to measure the second channel; and CSI-IM resource measurement is used to measure interference in neighboring cells / channels.

[0196] As the above points indicate, the interference from multiple beams was not considered during channel and interference measurements. Since different beams carry different amounts of energy, directly averaging the results during interference measurements leads to inaccurate results. Furthermore, time-domain filtering was either performed continuously or not at all. In dynamically changing wireless environments, interference characteristics may vary over time. If filter parameters remain fixed, they may not adapt to these changes, resulting in poor interference suppression and affecting measurement accuracy. Without time-domain filtering, high-frequency interference components in the signal cannot be effectively suppressed. These interference components may mask or interfere with normal signal components, leading to measurement deviations that fail to accurately reflect the actual interference level of the signal.

[0197] To address this problem, this application proposes a communication method. In the communication method provided by this application, time-domain filtering information is configured for CSI-IM resources, and this time-domain filtering information is used to determine the interference measurement results.

[0198] In some possible implementations, the time-domain filtering information includes beam index, quasi-co-address information, or time-domain filter number information.

[0199] The communication method in this application can be applied to communication between a first communication device and a second communication device. The first communication device can be a network device or a terminal device, and the second communication device can be both a network device and a terminal device.

[0200] The communication method in this application can be applied to communication between network devices and terminal devices, communication between network devices, or communication between terminal devices. The following description uses communication between network devices and terminal devices as an example.

[0201] Figure 15 This is an example diagram of a communication method according to an embodiment of this application. Figure 15 As shown, this communication method may include S1510 and S1520.

[0202] S1510, the network device sends first information, which is used to configure the time-domain filtering information of CSI-IM resources. The time-domain filtering information includes beam index, quasi-co-location information or time-domain filtering number information, and is used to determine the interference measurement results. Correspondingly, the terminal device receives the first information.

[0203] In some possible implementations, the interference measurement results are determined by time-domain filtering based on the CSI-IM resources corresponding to the same time-domain filtering information.

[0204] Understandably, the same time-domain filtering information can be the same beam index, the same quasi-co-address information, or the same time-domain filtering number information.

[0205] In some possible implementations, the time-domain filter numbering information of the CSI-IM resource configuration corresponding to the same beam index and / or the same quasi-co-address information is identical.

[0206] Optionally, beam index can also be understood as: beam identifier, beam number, or beam number, etc., used to identify the beam.

[0207] S1520, the terminal device sends the interference measurement results. Correspondingly, the network device receives the interference measurement results.

[0208] In some possible implementations, the first information includes time-domain filtering information.

[0209] For example, a CSI-IM resource configuration may include a beam index, quasi-co-address information, or time-domain filter number information.

[0210] Optionally, a CSI-IM resource configuration includes a time-domain filtering information, that is, a CSI-IM resource corresponds to a time-domain filtering information.

[0211] As an example, in order for a terminal device to measure interference in the channel or signal of the communication network, the network device configures CSI-IM resources on the carrier of the communication network spectrum sharing for the terminal device. The CSI-IM resources include REs of the channel or signal of the communication network. The channel or signal of the communication network includes SSB: PSS, SSS, physical broadcast channel (PBCH), demodulation reference signal (DMRS) of PBCH; CORESET: PDCCH, PDCCH DMRS; PDSCH: at least one of PDSCH, PDSCH DMRS.

[0212] Network devices configure CSI-IM resources for terminal devices. CSI-IM resources include one or more frequency domain resources.

[0213] For example, frequency domain resources can be frequency bands, and a frequency band includes one or more RBs. A resource block can be the scheduling / configuration unit of frequency domain resources. A resource block includes one or more subcarriers, and a subcarrier is the smallest unit in the frequency domain.

[0214] In some possible implementations, network devices can exchange parameters such as the resource location and transmit power of SSB, CORESET, PDSCH, etc.

[0215] Understandably, when configuring CSI-IM resources, network devices can also notify terminal devices of signal or channel parameter information of other network devices interacting with the network device. This parameter information includes resource location information and / or transmit power information of SSB, CORESET, PDSCH, etc.

[0216] In some possible implementations, the network device may send second information for configuring CSI-RS resources, which correspond to one or more of the CSI-IM resources. Accordingly, the terminal device receives the second information.

[0217] Optionally, the terminal device may also perform interference measurements of one or more neighboring cells or channels while performing channel measurements for one channel.

[0218] Optionally, when the terminal device measures and reports the CSI-RS resources of multiple channels, the terminal device may report the CSI-RS resource index (CM-CRI) of the channel measurements.

[0219] After the interference measurement is completed, the terminal device will select a channel state information (CSI) corresponding to a CSI-IM resource to report, and also report the CSI-IM resource index (IM-CRI).

[0220] In some possible implementations, when performing channel measurements on multiple channels, interference measurements on multiple neighboring cells / channels are also performed. The UE will select the CSI-RS resource for channel measurement and the CSI-IM resource for interference measurement to report the CSI, and also report the CM-CRI for channel measurement and the IM-CRI for interference measurement.

[0221] For example, such as Figure 16 As shown, when performing channel measurements based on CSI-RS resources, interference measurements are also performed on the two neighboring cells / channels corresponding to CSI-IM resources 1 and CSI-IM resources 2.

[0222] In some possible implementations, the CSI-IM resource configuration includes at least one of time-domain index, period, or time-domain filtering information.

[0223] For example, the network device configures N1 CSI-RS resources for the terminal device, where N1 is a positive integer. During each channel measurement, N2 neighboring cell / channel interference measurements are also performed, where N2 is a positive integer. An example of the configuration information is as follows.

[0224] CSI-IM resource 0: Indicates symbol index, time slot index; configures the period, such as 5ms, 10ms, 20ms, 40ms, etc.; indicates time domain filtering information.

[0225] CSI-IM resource 1: Indicator symbol index, time slot index; configuration period, such as 5ms, 10ms, 20ms, 40ms, etc.; indicates time domain filtering information.

[0226] CSI-IM resource 2: Indicator symbol index, time slot index; configuration period, such as 5ms, 10ms, 20ms, 40ms, etc.; indicates time domain filtering information.

[0227] CSI-IM resource N2-1 (e.g., N2=4): Indicator symbol index, time slot index; configured period, such as 5ms, 10ms, 20ms, 40ms, etc.; indicates time-domain filtering information. In some possible implementations, the terminal device performs interference measurement based on the CSI-IM resources configured by the network device.

[0228] For example, the terminal device can perform time-domain filtering on interference measurements of CSI-IM resources under the same time-domain filtering information to determine the interference situation under that time-domain filtering information. The terminal device can perform time-domain filtering on resources of beams or channels, or on resources with the same time-domain filtering number.

[0229] Alternatively, the terminal device can use existing interference measurement methods to perform interference measurement, such as interference power averaging or interference power normalization.

[0230] In some possible implementations, the network device sends a fifth message indicating a time-domain filtering threshold parameter used to determine the interference measurement result. Correspondingly, the terminal device receives the fifth message.

[0231] Optionally, the threshold parameters include the threshold range or the threshold difference.

[0232] For example, for a CSI-IM resource with configured time-domain filtering information, the neighboring network device may not send an SSB, but may transmit a PDSCH. In this case, in order to achieve more accurate interference measurement of beam interference, time-domain filtering is performed. The terminal device can perform time-domain filtering based on threshold range or threshold difference.

[0233] Understandably, threshold-based time-domain filtering refers to performing time-domain filtering only on the results of interference measurements of resources within the threshold parameters.

[0234] For example, the threshold parameter can be a protocol predefined parameter, or a threshold range indicated by the network device: such as -3dB to 3dB, -5dB to 5dB. The threshold range can be a UE-specific configuration, or a configuration for CSI-IM resources. The threshold parameter can be a protocol predefined parameter, or a threshold difference indicated by the network device: such as 3dB, 5dB, etc. The threshold difference can be a UE-specific configuration or a configuration for CSI-IM resources.

[0235] For example, when performing interference measurement, the terminal device can use the first measurement as a reference to average the interference of resources within the threshold parameter, or use multiple measurements as a reference to average only the interference of resources within the threshold parameter.

[0236] For example, when performing interference measurement, the terminal device can use the first measurement as a reference to perform time-domain filtering on the interference of resources that meet the threshold parameter requirements, or it can use multiple measurements as a reference to perform time-domain filtering on the interference of resources that meet the threshold parameter requirements.

[0237] For example, for the same CSI-IM resource, if the interference measured by the terminal device exceeds the threshold difference / threshold range, the terminal device will not perform time-domain filtering for the interference measurement at that moment, that is, skip the measurement.

[0238] Optionally, the time-domain filtering in this application can be time-domain averaging, time-domain interpolation, time-domain stretching, or time-domain prediction, or other time-domain filtering processes. Specifically, this application does not limit this.

[0239] In some possible implementations, the terminal device can report the time / resource identifier corresponding to interference measurements that exceed the threshold difference / threshold range. That is, the terminal device can inform the network device which time / resource identifiers have interference measurements exceeding the threshold difference / threshold range.

[0240] In some possible implementations, the terminal device can report the time / resource identifier corresponding to interference measurements that do not meet the threshold parameter requirements. That is, the terminal device can inform the network device which time / resource identifiers' interference measurements do not meet the threshold parameter.

[0241] In some possible implementations, the terminal device can report the time / resource identifier corresponding to interference measurements that exceed the threshold difference / threshold range. That is, the terminal device can inform the network device which time / resource identifiers correspond to interference measurements exceeding the threshold difference / threshold range.

[0242] In some possible implementations, the terminal device can report the time / resource identifier corresponding to interference measurements that are less than the threshold difference / threshold range. That is, the terminal device can inform the network device which time / resource identifiers correspond to interference measurements that are less than the threshold difference / threshold range.

[0243] Through feedback from terminal devices, network devices can understand the interference situation of each channel in the communication network.

[0244] In some possible implementations, the interference measurement result is determined by time-domain filtering based on CSI-IM resources that correspond to the same time-domain filtering information and satisfy the time-domain filtering threshold parameters.

[0245] In some possible implementations, when CSI-IM resources include multiple frequency bands, the terminal device can feed back channel status information or channel quality information for each frequency band separately.

[0246] In some possible implementations, when CSI-IM resources include multiple symbol groups, the terminal device can feed back channel state information or channel quality information for each symbol group separately.

[0247] In some possible implementations, the interference measurement results of neighbor cell measurements include signal quality information and / or channel state information.

[0248] For example, signal quality information may include one or more of the following: reference signal received power (RSRP), interference measurement reference signal received power (IM-RSRP), signal to interference plus noise ratio (SINR), and signal to noise ratio (SNR).

[0249] For example, channel state information may include one or more of the following: channel quality indicator (CQI), RSRP, reference signal received quality (RSRQ), received signal strength indicator (RSSI), precoding matrix indicator (PMI), rank indicator (RI), or layer indicator (LI).

[0250] In some possible implementations, the network device configures CSI-IM resources for the terminal device and configures reporting parameters in the reporting configuration of the CSI-IM resources, including IM-RSRP.

[0251] In some possible implementations, the network device configures CSI-RS resources for the terminal device, and configures reporting parameters in the reporting configuration of the CSI-RS resources. These reporting parameters include IM-RSRP.

[0252] In some possible implementations, the channel state information reported by the terminal device can be SINR or CQI.

[0253] CQI can be selected by the receiver based on the measured signal-to-noise ratio (SNR) or signal-to-interference-plus-noise ratio (SINR).

[0254] For example, the CQI value is selected from a predefined table that maps SINR / SNR values ​​to CQI indices. This mapping is based on the assumption that higher SINR / SNR values ​​indicate better channel conditions, allowing for higher data rates. The CQI is selected using this predefined mapping table based on the current channel conditions and the target block error rate (BLER).

[0255] SINR is a key metric for measuring signal quality, especially in wireless communication systems. The formula for calculating SINR is:

[0256]

[0257] P s It is the power of the received signal, P i It is the power of the interference signal, P n It is the noise power at the receiving end.

[0258] In some possible implementations, CQI includes interference information. For example, the SINR calculation formula mentioned above includes interference information, which may include the power of the received signal, the power of the interfering signal, or the noise power at the receiver. The configuration of relevant measurement resources reported by CQI includes CSI-IM resources.

[0259] In some possible implementations, the network device sends third information indicating whether to report interference measurement results. Correspondingly, the terminal device receives the third information.

[0260] In some possible implementations, the network device can instruct the terminal device whether to report interfering RSRP (IM-RSRP).

[0261] For example, network devices may indicate in their reporting configuration whether to report IM-RSRP.

[0262] For example, IM-RSRP reporting can be periodic, semi-persistent, or non-periodic.

[0263] In some possible implementations, the network device can configure one or more CSI-IM resources for the terminal device.

[0264] In some possible implementations, the terminal device may report time-domain filtering information corresponding to the interference measurement results, or the identification information of the CSI-IM resource corresponding to the interference measurement results (such as CSI-IM resource ID).

[0265] In some possible implementations, the network device sends a fourth message indicating the maximum number of interference measurement results to be reported and / or a reporting threshold. Accordingly, the terminal device receives the fourth message.

[0266] For example, a network device may indicate the number of IM-RSRPs reported by the terminal device, and / or a reporting threshold.

[0267] For example, the terminal device can prioritize reporting the CSI-IM resource ID with the highest IM-RSRP value and its corresponding IM-RSRP based on the number of reports.

[0268] For example, the terminal device can determine the IM-RSRP corresponding to CSI-IM resources that are greater than the reported threshold based on the reported threshold. For instance, in the bitmap corresponding to the reported CSI-IM resource ID, 1 represents greater than (or equal to) the threshold, and 0 represents less than (or equal to) the threshold. For CSI-IM resources that are greater than (or equal to) the threshold, the IM-RSRP can be further fed back.

[0269] In some possible implementations, when the terminal device reports IM-RSRP, it performs IM-RSRP quantified reporting.

[0270] For example, the number of quantization bits is N bits, where N is a positive integer. For example, N is 4 or 7. When N is 7, the reporting range of IM-RSRP can be 0 to 127, a total of 128 values. The reported value 0 is equal to SINR < -23dB, the reported value 127 indicates SINR > 40dB, and the accuracy of the measurement report is 0.5dB.

[0271] In some possible implementations, the terminal device can perform threshold-based differential IM-RSRP reporting, reporting the offset relative to the threshold.

[0272] In some possible implementations, the terminal device can perform differential reporting between multiple CSI-IM resources.

[0273] For example, the terminal device reports the first IM-RSRP of the first CSI-IM resource, and the IM-RSRP of the second CSI-IM resource is reported differentially, that is, the reported value of the IM-RSRP of the second CSI-IM resource (the second IM-RSRP) is the power offset relative to the first IM-RSRP.

[0274] In some possible implementations, the first information includes multiple time-domain filtering information.

[0275] For example, a single CSI-IM resource configuration may include multiple (e.g., at least two) beam indices, quasi-co-location information, or time-domain filter numbering information.

[0276] In some possible implementations, a CSI-IM resource configuration includes multiple time-domain filtering information, that is, a CSI-IM resource corresponds to multiple time-domain filtering information.

[0277] In some possible implementations, when configuring channel measurement resources for a channel for a terminal device, the network device can configure an interference measurement resource. The terminal device can choose to report the CSI of a beam identifier or channel identifier CSI-IM resource, and report the beam identifier or channel identifier of the IM. For example... Figure 17 As shown.

[0278] In some possible implementations, the network device may indicate at least one of the following: the number of beams for interference measurement, the number of QCLs, or the pattern of CSI-IM resources.

[0279] As an example, the configuration or indication method of CSI-IM resources may include at least one of the following:

[0280] In some possible implementations, the first information also includes information about the quantity of time-domain filtering information.

[0281] For example, the number of beams is specified using a predefined method. When configuring SSB beams, there are 4 beams for frequency bands below 3 GHz, 8 beams for frequency bands of 3-6 GHz, and 64 beams for frequency bands of 6-52.6 GHz.

[0282] In some possible implementations, the first information also includes a time-domain pattern.

[0283] Optionally, the time-domain pattern is used to indicate multiple time-domain resources of the CSI-IM resource, and there is a correlation between the multiple time-domain resources and multiple time-domain filtering information.

[0284] Optionally, the time-domain pattern is used to determine multiple time-domain resources of the CSI-IM resource, and there is a correlation between the multiple time-domain resources and multiple time-domain filtering information.

[0285] For example, the terminal device can determine multiple time-domain filtering information corresponding to multiple time-domain resources of CSI-IM resources based on the time-domain pattern.

[0286] In some possible implementations, the first information also includes subcarrier spacing information.

[0287] Optionally, the subcarrier spacing information is used to determine the relationship between the time-domain resources and time-domain filtering information of the CSI-IM resources.

[0288] Optionally, there is a correlation between the subcarrier spacing information and the time-domain information of the CSI-IM resource's time-domain resources.

[0289] For example, the time-domain information of a CSI-IM resource may include at least one of the following: symbol number, time slot number, or subframe number.

[0290] Optionally, the time-domain information of CSI-IM resources can be simply referred to as: time-domain information of CSI-IM resources.

[0291] In some possible implementations, in order for the terminal device to perform interference measurement at the correct time domain location, there is a correspondence between the subcarrier spacing and the time domain information, that is, different subcarrier spacings may correspond to different time domain patterns.

[0292] Optionally, the terminal device can determine the time-domain pattern based on the subcarrier spacing information.

[0293] Optionally, the terminal device can determine the time-domain pattern based on the carrier and subcarrier spacing information of the communication.

[0294] In this context, the carrier wave in communication can refer to the frequency band in which the communication takes place, the carrier frequency, the center frequency, or the carrier frequency.

[0295] For example, in the temporal pattern, the shaded area is a candidate temporal region, and the first symbol index is determined according to the SCS of the SSB block as follows, where index 0 corresponds to the first symbol of the first slot in the half-frame.

[0296] Understandably, when the subcarrier spacing is different, the number of time slots included in each subframe is also different, as shown in Table 2. Therefore, the time-domain patterns corresponding to different subcarrier spacings are also different.

[0297] like Figure 18 As shown, when SCS = 15 kHz, the first symbol of the candidate SS / PBCH block has an index {2, 8} + 14·n.

[0298] For operation without shared spectrum channel access:

[0299] For carrier frequencies less than or equal to 3 GHz, as an example: n = 0, 1.

[0300] For carrier frequencies greater than 3 GHz in FR1, as an example: n = 0, 1, 2, 3.

[0301] For example, the operation of shared spectrum channel access is: n = 0, 1, 2, 3, 4.

[0302] like Figure 19 As shown, when SCS = 30kHz, the first symbol of the candidate SS / PBCH block has an index {4,8,16,20} + 28·n.

[0303] For carrier frequencies less than or equal to 3 GHz, as an example: n = 0. For carrier frequencies greater than 3 GHz in FR1, as an example: n = 0, 1.

[0304] like Figure 20 As shown, when SCS = 30kHz, the first symbol of a candidate SS / PBCH block can also have an index {2,8} + 14·n.

[0305] For operation without shared spectrum channel access: For paired spectrum operation: For carrier frequencies less than or equal to 3 GHz, as an example: n = 0, 1. For carrier frequencies greater than 3 GHz in FR1, as an example: n = 0, 1, 2, 3; For unpaired spectrum operation: For carrier frequencies less than 1.88 GHz, as an example: n = 0, 1. For carrier frequencies equal to or greater than 1.88 GHz in FR1, as an example: n = 0, 1, 2, 3.

[0306] For example, the operation of shared spectrum channel access is: n = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.

[0307] like Figure 21 As shown, SCS = 120 kHz, and the first symbol of the candidate SS / PBCH block has an index {4, 8, 16, 20} + 28·n. For the carrier frequency within FR2, as an example: n = 0, 1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18.

[0308] like Figure 22As shown, SCS = 240 kHz, the first symbol of the candidate SS / PBCH block has an index {8, 12, 16, 20, 32, 36, 40, 44} + 56·n. For the carrier frequency within FR2-1, as an example: n = 0, 1, 2, 3, 5, 6, 7, 8.

[0309] SCS = 480kHz: The first symbol of the candidate SS / PBCH block has an index {2,9} + 14·n. For the carrier frequency within FR2-2, as an example: n = 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31.

[0310] SCS = 960 kHz: The first symbol of the candidate SS / PBCH block has an index {2, 9} + 14·n. For the carrier frequency within FR2-2, as an example: n = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31.

[0311] In some possible implementations, interference measurement is used to measure the interference situation of CORESET.

[0312] In some possible implementations, the interference measurement resource configuration may also include at least one of the following: symbol index, time slot index, or time domain pattern.

[0313] Optionally, the index in this application can be understood as an identifier, number, or label, etc.

[0314] For example, the quantity of time-domain filtering information is 4, denoted as 4 beams (e.g., the corresponding beam identifiers or beam indices are beam0, beam1, beam2, and beam3). For instance, the symbol bitmap is 10001000100010, corresponding to symbols 0, 4, 8, and 12. Symbol 0 corresponds to beam0, symbol 4 corresponds to beam1, symbol 8 corresponds to beam2, and symbol 12 corresponds to beam3.

[0315] For example, the number of time-domain filtering information is 8, denoted as 8 beams (e.g., the corresponding beam identifiers or beam indices are beam0, beam1, beam2, beam3, beam4, beam5, beam6, and beam7, respectively). The symbol bitmap is 1000100010001010001000100010, corresponding to 0, 4, 8, and 12. Symbol 0 corresponds to beam0, symbol 4 to beam1, symbol 8 to beam2, symbol 12 to beam3, symbol 14 to beam4, symbol 18 to beam5, symbol 22 to beam6, and symbol 26 to beam7.

[0316] In some possible implementations, the number of beam identifiers (beamIDs) is determined based on the number of 1s in the Symbol bitmap, or the number of beam IDs is indicated, such as 4, 8, 10, or 64.

[0317] For example, if the Symbol bitmap is 10001000100010, then there are 4 beam IDs.

[0318] like Figure 23 As shown, the terminal device can perform time-domain filtering (such as time-domain filtering averaging) on ​​the interference measurement results of interference measurement resources corresponding to the same beam ID.

[0319] In some possible implementations, the terminal device can perform interference measurements based on the CSI-IM resources configured in the network device.

[0320] For example, the terminal device can perform time-domain filtering on interference measurements of CSI-IM resources under the same time-domain filtering information to determine the interference situation under that time-domain filtering information. The terminal device can perform time-domain filtering on resources of beams or channels, or on resources with the same time-domain filtering number.

[0321] Alternatively, the terminal device can use existing interference measurement methods to perform interference measurement, such as interference power averaging or interference power normalization.

[0322] In some possible implementations, the terminal device can perform time-domain filtering based on threshold parameters, which may include a threshold range or a threshold difference.

[0323] For example, for a CSI-IM resource with configured time-domain filtering information, the neighboring network device may not send an SSB, but may transmit a PDSCH. In this case, in order to achieve more accurate interference measurement of beam interference, time-domain filtering is performed. The terminal device can perform time-domain filtering based on threshold range or threshold difference.

[0324] Understandably, threshold-based time-domain filtering refers to performing time-domain filtering only on the results of interference measurements of resources within the threshold parameters.

[0325] For example, the threshold parameter can be a protocol predefined parameter, or a threshold range indicated by the network device: such as -3dB to 3dB, -5dB to 5dB, or the threshold range can be UE specific or configured for CSI-IM resources; the threshold parameter can be a protocol predefined parameter, or a threshold difference indicated by the network device: such as 3dB, 5dB, etc., and the threshold difference can be UE specific or configured for CSI-IM resources.

[0326] For example, when performing interference measurement, the terminal device may use the first measurement as a reference and measure the interference within a threshold parameter, or use multiple measurements as a reference and only average the interference of resources within the threshold parameter.

[0327] For example, when performing interference measurement, the terminal device can use the first measurement as a reference to perform time-domain filtering on the interference of resources that meet the threshold parameter requirements, or it can use multiple measurements as a reference to perform time-domain filtering on the interference of resources that meet the threshold parameter requirements.

[0328] For example, for the same CSI-IM resource with time-domain filtering information, if the interference measured by the terminal device exceeds the threshold difference / threshold range, then the terminal device will not perform time-domain filtering for the interference measurement at that moment, i.e., skip this measurement.

[0329] In some possible implementations, the terminal device can report the time / resource identifier corresponding to interference measurements that exceed the threshold difference / threshold range. That is, the terminal can inform the network device which time / resource identifiers the interference measurements exceed the threshold difference / threshold range.

[0330] In some possible implementations, the terminal device can report the time / resource identifier corresponding to interference measurements that do not meet the threshold parameter requirements. That is, the terminal device can inform the network device which time / resource identifiers' interference measurements do not meet the threshold parameter.

[0331] In some possible implementations, the terminal device can report the time / resource identifier corresponding to interference measurements that exceed the threshold difference / threshold range. That is, the terminal can inform the network device which time / resource identifiers correspond to interference measurements exceeding the threshold difference / threshold range.

[0332] In some possible implementations, the terminal device can report the time / resource identifier corresponding to interference measurements that are less than the threshold difference / threshold range. That is, the terminal can inform the network device which time / resource identifiers correspond to interference measurements that are less than the threshold difference / threshold range.

[0333] Through feedback from terminal devices, network devices can know the interference situation of each channel in the communication network.

[0334] In some possible implementations, when CSI-IM resources include multiple frequency bands, the terminal device can feed back channel status information or channel quality information for each frequency band separately.

[0335] In some possible implementations, when CSI-IM resources include multiple symbol groups, the terminal device can feed back channel state information or channel quality information for each symbol group separately.

[0336] In some possible implementations, the interference measurement results of neighbor cell measurements include signal quality information and / or channel state information.

[0337] For example, signal quality information may include one or more of the following: reference signal received power, interference measurement reference signal received power, signal-to-interference plus noise ratio, and signal-to-noise ratio.

[0338] For example, channel state information may include one or more of the following: channel quality information, RSRP, reference signal received quality, received signal strength indication, precoding matrix indication, rank indication, or layer indication.

[0339] In some possible implementations, the network device configures CSI-IM resources for the terminal device and configures reporting parameters in the reporting configuration of the CSI-IM resources, including IM-RSRP.

[0340] In some possible implementations, the network device configures CSI-RS resources for the terminal device, and configures reporting parameters in the reporting configuration of the CSI-RS resources. These reporting parameters include IM-RSRP.

[0341] In some possible implementations, the channel state information reported by the terminal device can be SINR or CQI.

[0342] For example, CQI is selected by the receiver based on the measured signal-to-noise ratio or signal-to-interference-plus-noise ratio.

[0343] The CQI value is selected from a predefined table that maps SINR / SNR values ​​to CQI indices. This mapping is based on the assumption that higher SINR / SNR values ​​indicate better channel conditions, allowing for higher data rates. The CQI is selected using this predefined mapping table based on the current channel conditions and the target BLER.

[0344] SINR is a key metric for measuring signal quality, especially in wireless communication systems. The formula for calculating SINR is:

[0345]

[0346] P s It is the power of the received signal, P i It is the power of the interference signal, P n It is the noise power at the receiving end.

[0347] In some possible implementations, CQI includes interference information. For example, the SINR calculation formula mentioned above includes interference information, which may include the power of the received signal, the power of the interfering signal, or the noise power at the receiver. The configuration of relevant measurement resources reported by CQI includes CSI-IM resources.

[0348] In some possible implementations, the network device can instruct the terminal device whether to report interfering RSRP (IM-RSRP).

[0349] For example, network devices may indicate in their reporting configuration whether to report IM-RSRP.

[0350] For example, IM-RSRP reporting can be periodic, semi-persistent, or non-periodic.

[0351] In some possible implementations, the network device can configure one or more CSI-IM resources for the terminal device.

[0352] In some possible implementations, the interference measurement results reported by the terminal device may include the interference measurement resource identifier, time-domain filtering information, and / or the IM-RSRP corresponding to that resource identifier.

[0353] In some possible implementations, the network device may instruct the terminal device on the number of IM-RSRPs to be reported, and / or, a reporting threshold.

[0354] For example, the terminal device can prioritize reporting the time-domain filtering information and corresponding IM-RSRP of the CSI-IM resources with the highest IM-RSRP values, based on the number of reports.

[0355] For example, the terminal device can determine the IM-RSRP corresponding to the CSI-IM resource whose reported time-domain filtering information is greater than the reported threshold based on the reported threshold. For instance, in the bitmap corresponding to the reported time-domain filtering information of the CSI-IM resource, 1 represents greater than or equal to the threshold, and 0 represents less than the threshold. The IM-RSRP can be further fed back for the CSI-IM resource corresponding to the time-domain filtering information that is greater than or equal to the threshold.

[0356] In some possible implementations, when the terminal device reports IM-RSRP, it performs IM-RSRP quantified reporting.

[0357] For example, the number of quantization bits is N bits, where N is a positive integer. For example, N is 4 or 7. When N is 7, the reporting range of IM-RSRP can be 0 to 127, a total of 128 values. The reported value 0 is equal to SINR < -23dB, the reported value 127 indicates SINR > 40dB, and the accuracy of the measurement report is 0.5dB.

[0358] In some possible implementations, the terminal device can perform threshold-based differential IM-RSRP reporting, reporting the offset relative to the threshold.

[0359] In some possible implementations, the terminal device can perform differential reporting between time-domain filtered information for CSI-IM resources corresponding to multiple time-domain filtered information.

[0360] For example, the terminal device reports the first IM-RSRP of the CSI-IM resource corresponding to the first time domain resource information, and the IM-RSRP of the CSI-IM resource corresponding to the second time domain resource information is reported differentially, that is, the reported value of the IM-RSRP of the CSI-IM resource corresponding to the second time domain resource information (the second IM-RSRP) is the power offset relative to the first IM-RSRP.

[0361] Figure 24 This is a schematic diagram of the structure of a communication device according to an embodiment of this application. Figure 24 As shown, the communication device 2400 may include a processing unit 2410 and a transceiver unit 2420.

[0362] As an example, processing unit 2410 can be used to determine the configuration information of CSI-IM resources, which includes beam index, quasi-co-location information, or time-domain filter number information. The processing unit is also used to determine channel state information based on the CSI-IM resource configuration information.

[0363] As an example, transceiver unit 2420 can be used to transmit configuration information for CSI-IM resources. Transceiver unit 2420 can also be used to receive channel state information. Transceiver unit 2420 is also used to receive configuration information for CSI-IM resources, which includes beam index, quasi-co-address information, or time-domain filter number information. Transceiver unit 2420 is then used to transmit channel state information.

[0364] Figure 25 This is a schematic diagram of the structure of a communication device according to an embodiment of this application, as shown below. Figure 25As shown, the communication device 2500 may include a processor 2510, an interface circuit 2520, and a memory 2530.

[0365] As an example, processor 2510 and interface circuitry 2520 are coupled to each other. The interface circuitry can be a transceiver or an input / output interface.

[0366] Optionally, the communication device may further include a memory 2530 for storing instructions executed by the processor 2510, or storing input data required by the processor 2510 to execute instructions, or data generated after the memory 2530 executes instructions. Sometimes, the interface circuit 2520 may also be part of the processor, in which case the communication device includes the processor 2510. The processor 2510 is used to determine the configuration information of CSI-IM resources, which includes beam / QCL information / time-domain filter number information. The interface circuit 2520 is used to transmit the CSI-IM resource configuration information. The interface circuit 2520 is used to receive channel state information.

[0367] Optionally, the interface circuitry receives CSI-IM resource configuration information, which includes p-beam / QCL information and time-domain filter number information. The processor determines channel state information based on the CSI-IM resource configuration information. The interface circuitry then transmits the channel state information.

[0368] Figure 26 This is a schematic diagram of a system architecture according to one embodiment of this application. This system architecture can be used to implement this application. Figure 15 The system architecture consists of a service management and orchestration framework, a non-real-time RAN intelligent controller, a near real-time RAN intelligent controller, an O-RAN aggregation unit, an O-RAN aggregation unit control plane, an O-RAN aggregation unit user plane, an O-RAN distribution unit, an O-RAN radio frequency unit, and an O-RAN cloud.

[0369] The Service Management and Orchestration Framework (SMO) functions similarly to network management. The Non-Real Time RAN Intelligent Controller (Non-RT RIC) implements non-real-time intelligent management of RAN functions and guides applications / functions within the Near-RT RIC based on policies. The Non-RT RIC is located within the SMO module. The Near-Real Time RAN Intelligent Controller (Near-RT RIC) enables near-real-time intelligent management of the RAN. Through data collection and related operations on the E2 interface, it achieves near-real-time control and optimization of O-RAN modules and resources. The O-RAN Central Unit (O-CU) implements the Radio Resource Control (RRC) layer, Packet Data Convergence Protocol (PDCP) layer, Service Data Adaptation Protocol (SDAP) layer, and other control functions as defined in the 3GPP standard. O-RAN Central Unit Control Plane (O-CU-CP): Similar to the CU-CP in the NR system, it implements the functions of the RRC layer and the control plane functions of the PDCP layer. It is part of the O-CU. O-RAN Distributed Unit (O-DU): Based on lower-layer function partitioning, it implements the radio link control (RLC) layer, media access control (MAC) layer, and higher physical layer (Higher PHY) layer in the 3GPP standard. The higher physical layer functions include one or more of the following: forward error correction (FEC) encoding / decoding, scrambling / descrambling, or modulation / demodulation. O-RAN Radio Unit (O-RU): Based on lower-layer function partitioning, it implements the lower physical layer (Lower PHY) functions and radio frequency functions in the 3GPP standard.The low physical layer functions include one or more of the following: Fast Fourier Transform (FFT) / Inverse Fast Fourier Transform (iFFT), digital beamforming, or extraction and filtering of the Physical Random Access Channel (PRACH). Similar to the Transmission Reception Point (TRP) or Remote Radiohead (RRH) in 3GPP, but including low physical layer functions such as FFT / iFFT or PRACH extraction. O-RAN Cloud (O-Cloud): As a cloud computing platform, it includes physical infrastructure nodes for hosting O-RAN functions such as RIC and O-DU; it supports software components (such as operating systems, virtual machine monitoring, container runtimes), management, and orchestration functions.

[0370] Figure 26 In this context, the NG interface is the interface between NR RAN equipment (such as base stations, CUs, CU-CPs, or CU-UPs) and the NR core network; NG-u is the user plane NG interface, and NG-c is the control plane NG interface.

[0371] The Xn interface is the interface between NR RAN devices (such as base stations, CUs, CU-CPs, or CU-UPs); among them, Xn-u is the user plane Xn interface, and Xn-c is the control plane Xn interface.

[0372] The X2 interface is the interface between LTE RAN devices; X2-u is the user plane X2 interface, and X2-c is the control plane X2 interface. In NR, the X2 interface is mainly used in E-UTRA-NR dual connectivity (EN-DC) scenarios, where the master station is an LTE RAN device that connects to the LTE core network through the X2 interface.

[0373] The E1 interface is the interface between CU-CP and CU-UP. The F1-C interface is the interface between CU-CP and DU. The F1-U interface is the interface between CU-UP and DU.

[0374] Figure 27 This is a schematic diagram of a system architecture according to one embodiment of this application. This system architecture can be used to implement this application. Figure 15 The functions include core network equipment, control unit (CU), distributed unit (DU), radio frequency unit (RU), and terminal equipment.

[0375] As an example, an access network device (RAN, such as an eNB, gNB, or next-generation access network device) communicates with the core network (CN) via a backhaul link and with terminal devices via an air interface. Specifically, the baseband unit (BBU) in the access network device communicates with the core network via the backhaul link, and the radio unit (RU) in the access network device communicates with at least one UE via an air interface. The BBU communicates with at least one RU via a fronthaul link. The BBU and RU may or may not be co-located. The BBU includes at least one control unit (CU) and at least one distributed unit (DU), which can communicate via at least one midhaul link.

[0376] Figure 28 This is a schematic diagram illustrating the functional division of a device according to an embodiment of this application. This device can be used to implement this application. Figure 15 The functions within.

[0377] In some examples, the CU is a logical node carrying the RRC, SDAP, PDCP, and other control functions of the access network equipment. The CU connects to network nodes such as the core network through interfaces, which can be interfaces like the E2 interface. Optionally, the CU may have some core network functions. The CU (e.g., PDCP layer and higher layers) connects to the DU (e.g., RLC layer and lower layers) through interfaces, which can be interfaces like the F1 interface. In some examples, these interfaces (e.g., the F1 interface) can provide control plane (C-Plane) and user plane (U-Plane) functions (e.g., interface management, system information management, UE context management, RRC message transmission, etc.). F1AP is the application protocol for the F1 interface, defining the F1 signaling procedures in some examples. The F1 interface supports control plane F1-C and user plane F1-U.

[0378] In some examples, the CU can be split into CU-CP (control unit-control plane) and CU-UP (control unit-user plane). CU-CP is a logical node carrying the RRC layer and PDCP-C (control plane part of PDCP) layer, used to implement the CU's control plane functions. CU-CP can interact with network elements in the core network used to implement control plane functions. These network elements in the core network can be access and mobility function (AMF) network elements, such as the access and mobility management function (AMF) in a 5G system. The AMF network element is responsible for mobility management in the mobile network, such as terminal device location updates, terminal device registration with the network, and terminal device handover. CU-UP is a logical node carrying the SDAP layer and PDCP-U (user plane part of PDCP) layer, used to implement the CU's user plane functions. CU-UP can interact with network elements in the core network used to implement user plane functions. These network elements in the core network, such as the UPF (user plane function) in a 5G system, are responsible for data forwarding and receiving in terminal devices. The above CU and DU configurations are merely examples; the functions of the CU and DU can be configured as needed. For instance, the CU or DU can be configured to have more protocol layer functions, or only some protocol layer processing functions. For example, some RLC layer functions and protocol layer functions above the RLC layer can be placed in the CU, while the remaining RLC layer functions and protocol layer functions below the RLC layer can be placed in the DU. Furthermore, the functions of the CU or DU can be divided according to service type or other system requirements, such as by latency. Functions that require low latency can be placed in the DU, while functions that do not require low latency can be placed in the CU.

[0379] In some examples, the DU is a logical node that carries the RLC layer, MAC layer, Higher PHY layer, and other functions. In some examples, the DU can control at least one RU. The DU connects to the RU through interfaces, which can be fronthaul interfaces. In some examples, the Higher PHY layer includes the PHY layer processing functions, such as FEC encoding and decoding, scrambling, modulation, and demodulation.

[0380] In some examples, the RU is a logical node carrying both Lower PHY and radio frequency (RF) chain processing. In some examples, the RU can be a 3GPP transmission reception point (TRP), a remote radio head (RRH), or other similar entities. In some examples, the Low-PHY includes PHY processing functions such as Fast Fourier Transform (FFT), Inverse Fast Fourier Transform (IFFT), digital beamforming, and filtering. The RU communicates with one or more UEs via a radio link.

[0381] The DU and RU can be co-located or not. The DU and RU exchange control plane and user plane information via a lower-layer split-control, user, and synchronization (LLS-CUS) interface through a fronthaul link. LLS-CUS may include LLS-C and LLS-U interfaces that provide the control plane (C-Plane) and user plane (U-Plane), respectively. In some examples, the control plane (C-Plane) refers to real-time control between the DU and RU. The DU and RU exchange management information via an LLS-M interface on the fronthaul link; the management plane (M-Plane) refers to non-real-time management operations between the DU and RU.

[0382] DU and RU can cooperate to implement the functions of the PHY layer. A DU can be connected to one or more RUs. The functions of DU and RU can be configured in various ways depending on the design. For example, a DU can be configured to implement baseband functions, and an RU can be configured to implement mid-RF functions. Another example is that a DU can be configured to implement higher-level functions in the PHY layer, and an RU can be configured to implement lower-level functions in the PHY layer, or to implement both lower-level and RF functions. Higher-level functions in the physical layer can include a portion of the physical layer's functions that are closer to the MAC layer, while lower-level functions in the physical layer can include another portion of the physical layer's functions that are closer to the mid-RF side.

[0383] When the aforementioned communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above method embodiments. The terminal chip receives information from the base station, which can be understood as the information being first received by other modules in the terminal (such as an RF module or antenna), and then sent to the terminal chip by these modules. The terminal chip sends information to the base station, which can be understood as the information being first sent to other modules in the terminal (such as an RF module or antenna), and then sent to the base station by these modules.

[0384] When the aforementioned communication device is a chip applied to a base station, the base station chip implements the functions of the base station in the above method embodiments. The base station chip receives information from the terminal, which can be understood as the information being first received by other modules in the base station (such as an RF module or antenna), and then sent to the base station chip by these modules. The base station chip sends information to the terminal, which can be understood as the information being sent down to other modules in the base station (such as an RF module or antenna), and then sent to the terminal by these modules.

[0385] In this application, entity A sends information to entity B, either directly or indirectly through other entities. Similarly, entity B receives information from entity A, either directly or indirectly through other entities. Entities A and B can be RAN nodes or terminals, or modules within RAN nodes or terminals. Information transmission and reception can be between RAN nodes and terminals, such as between a base station and a terminal; between two RAN nodes, such as between a CU and a DU; or between different modules within a single device, such as between a terminal chip and other modules of the terminal, or between a base station chip and other modules of the base station.

[0386] It is understood that the processor in the embodiments of this application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general-purpose processor may be a microprocessor or any conventional processor.

[0387] The method steps in the embodiments of this application can be implemented in hardware or in software instructions executable by a processor. The software instructions can consist of corresponding software modules, which can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disks, portable hard disks, CD-ROMs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. The storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. Alternatively, the ASIC can reside in a base station or terminal. The processor and storage medium can also exist as discrete components in a base station or terminal.

[0388] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this application are performed entirely or partially. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video optical disc; or it can be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both types of storage media.

Claims

1. A communication method characterized by comprising: The method comprises: determining first information, the first information being used for configuring time domain filtering information of channel state information interference measurement (CSI-IM) resources, the time domain filtering information comprising beam index, quasi co-location information or time domain filtering number information, the time domain filtering information being used for determining interference measurement results; sending the first information.

2. The method of claim 1, wherein, The time domain filtering information is used for determining interference measurement results, comprising: The interference measurement results are determined based on the CSI-IM resources corresponding to the same time domain filtering information after time domain filtering.

3. The method according to claim 1 or 2, characterized in that, The first information comprises one time domain filtering information.

4. The method according to claim 1 or 2, characterized in that, The first information comprises multiple time domain filtering information.

5. The method according to claim 4, characterized in that: The first information further comprises a time domain pattern, the time domain pattern being used for indicating multiple time domain resources of the CSI-IM resources, the multiple time domain resources having a correlation relationship with the multiple time domain filtering information.

6. The method according to claim 4 or 5, characterized in that, The first information further comprises number information and / or subcarrier spacing information of the time domain filtering information, the number information and / or the subcarrier spacing information being used for determining the correlation relationship.

7. The method according to any one of claims 1 to 6, characterized in that, The method further comprises: sending fifth information, the fifth information being used for indicating time domain filtering threshold parameters, the time domain filtering threshold parameters being used for determining interference measurement results.

8. The method of claim 7, wherein, The interference measurement results are determined based on the CSI-IM resources corresponding to the same time domain filtering information and satisfying the time domain filtering threshold parameters after time domain filtering.

9. A communication method characterized by comprising: The method comprises: receiving first information, the first information being used for configuring time domain filtering information of first channel state information interference measurement (CSI-IM) resources, the time domain filtering information comprising beam index, quasi co-location information or time domain filtering number information; performing interference measurement based on the first information.

10. The method of claim 9, wherein, The method comprises: The interference measurement is determined based on the CSI-IM resources corresponding to the same time domain filtering information after time domain filtering.

11. The method according to claim 8 or 9, characterized in that, The first information comprises one time domain filtering information.

12. The method of claim 8 or 9, wherein, The first information comprises multiple time domain filtering information.

13. The method of claim 12, wherein, The first information further comprises a time domain pattern, the time domain pattern being used for indicating multiple time domain resources of the CSI-IM resources, the multiple time domain resources having a correlation relationship with the multiple time domain filtering information.

14. The method according to claim 12 or 13, characterized in that, The first information further comprises number information and / or subcarrier spacing information of the time domain filtering information, the number information and / or the subcarrier spacing information being used for determining the correlation relationship.

15. The method according to any one of claims 9 to 14, characterized in that, The method further comprises: receiving fifth information, the fifth information being used for indicating time domain filtering threshold parameters, the time domain filtering threshold parameters being used for determining interference measurement results.

16. The method of claim 15, wherein, The interference measurement results are determined based on the CSI-IM resources corresponding to the same time domain filtering information and satisfying the time domain filtering threshold parameters after time domain filtering.

17. A communications device, characterized by comprises a processor configured to execute computer program instructions to implement the method according to any one of claims 1 to 8, or configured to execute computer program instructions to implement the method according to any one of claims 9 to 16.

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