WO2024094089A1

WO2024094089A1 - Communication method and apparatus, chip and storage medium

Info

Publication number: WO2024094089A1
Application number: PCT/CN2023/129177
Authority: WO
Inventors: 张帅
Original assignee: 北京紫光展锐通信技术有限公司
Priority date: 2022-11-02
Filing date: 2023-11-01
Publication date: 2024-05-10
Also published as: CN117998434A

Abstract

The present application provides a communication method and apparatus, a chip and a storage medium. The method comprises: a first radio access network device exchanges cross-link interference (CLI) measurement resource configuration with a second radio access network device; and the first radio access network device measures a CLI between the first radio access network device and the second radio access network device according to the CLI measurement resource configuration. The method of the present application solves the problem of how to measure the CLI existing between radio access network devices.

Description

Communication method, device, chip and storage medium

This application claims priority to the Chinese patent application filed with the China Patent Office on November 2, 2022, with application number 2022113637224 and application name “Communication Method, Device, Chip and Storage Medium”, all contents of which are incorporated by reference in this application.

Technical Field

The present application relates to communication technology, and in particular to a communication method, device, chip and storage medium.

Background technique

With the development of communication technology, the fifth generation (5G) communication, as the development trend of mobile communication, has a variety of communication scenarios. For example, dynamic time division duplexing (Dynamic/Flexible Time Division Duplexing, Dynamic/Flexible TDD) scenario, sub-band full-duplex scenario, etc. At present, under the current 5G communication, cross-link interference (Cross Link Interference, CLI) may exist between wireless access network devices and wireless access network devices. In order to deal with the cross-link interference between wireless access network devices and wireless access network devices, it is necessary to measure the cross-link interference between wireless access network devices and wireless access network devices.

Therefore, how to measure the cross-link interference between wireless access network devices is an urgent problem to be solved.

Summary of the invention

The present application provides a communication method, an apparatus, a chip and a storage medium to solve the problem of how to measure cross-link interference between wireless access network devices.

In a first aspect, the present application provides a communication method, comprising:

The first radio access network device interacts with the second radio access network device to configure cross-link interference CLI measurement resources;

The first radio access network device measures the CLI between the first radio access network device and the second radio access network device according to the CLI measurement resource configuration.

In a second aspect, the present application provides a communication method, the method comprising:

The second radio access network device interacts with the first radio access network device to configure cross-link interference CLI measurement resources;

The second radio access network device performs CLI measurement with the first radio access network device according to the CLI measurement resource configuration, so that the first radio access network device obtains the CLI between the first radio access network device and the second radio access network device.

In a third aspect, the present application provides a communication method, the method comprising:

The first terminal device receives first indication information from the first radio access network device, where the first indication information is used to instruct the first terminal device to perform uplink transmission puncturing on a first target resource; the first target resource includes: a resource where the uplink transmission resource of the first terminal device overlaps with a CLI measurement resource, where the CLI measurement resource is indicated by a cross-link interference CLI measurement resource configuration for interaction between the first radio access network device and the second radio access network device;

The first terminal device determines, based on the first indication information, that the first target resource is not used for uplink transmission to the first wireless access network device.

In a fourth aspect, the present application provides a communication method, the method comprising:

The second terminal device receives second indication information from the first radio access network device, where the second indication information is used to instruct the second terminal device to perform CLI measurement on a second target resource; the second target resource includes: the second target resource includes: an uplink transmission resource of the second terminal device overlapping with a CLI measurement resource indicated by the CLI measurement resource configuration, where the CLI measurement resource is indicated by a cross-link interference CLI measurement resource configuration for interaction between the first radio access network device and the second radio access network device;

The second terminal device performs CLI measurement between terminal devices on the second target resource according to the second indication information.

In a fifth aspect, the present application provides a communication device, which is applied to a first radio access network device, including:

A transceiver module, configured to interact with a second radio access network device for cross-link interference CLI measurement resource configuration;

The processing module is used to measure the CLI between the first radio access network device and the second radio access network device according to the CLI measurement resource configuration.

In a sixth aspect, the present application provides a communication device, which is applied to a second radio access network device, including:

A transceiver module, configured to interact with a first radio access network device for cross-link interference CLI measurement resource configuration;

The processing module is used to perform CLI measurement with the first radio access network device according to the CLI measurement resource configuration, so that the first radio access network device obtains the CLI between the first radio access network device and the second radio access network device.

In a seventh aspect, the present application provides a communication device, which is applied to a first terminal device, including:

A receiving module, configured to receive first indication information from a first radio access network device, wherein the first indication information is used to instruct the first terminal device to perform uplink transmission puncturing on a first target resource; the first target resource includes: a resource where an uplink transmission resource of the first terminal device overlaps with a CLI measurement resource, and the CLI measurement resource is indicated by a cross-link interference CLI measurement resource configuration for interaction between the first radio access network device and a second radio access network device;

A processing module is used to determine, according to the first indication information, that the first target resource is not used for uplink transmission to the first radio access network device.

In an eighth aspect, the present application provides a communication device, which is applied to a second terminal device, including:

A transceiver module, configured to receive second indication information from a first radio access network device, wherein the second indication information is used to instruct the second terminal device to perform CLI measurement on a second target resource; the second target resource comprises: the second target resource comprises: an uplink transmission resource of the second terminal device overlapping with a CLI measurement resource indicated by the CLI measurement resource configuration, wherein the CLI measurement resource is indicated by a cross-link interference CLI measurement resource configuration for interaction between the first radio access network device and the second radio access network device;

A processing module is used to perform CLI measurement between terminal devices on the second target resource according to the second indication information.

In a ninth aspect, the present application provides a communication device, the device comprising: a processor, a transceiver, and a memory; the processor is communicatively connected to the transceiver and the memory respectively;

The memory stores computer-executable instructions;

The transceiver communicates and interacts with an external device;

The processor executes the computer-executable instructions stored in the memory to implement the method as described in any one of the first to fourth aspects.

In a tenth aspect, the present application provides a chip having a computer program stored thereon, and when the computer program is executed by the chip, the method as described in any one of the first to fourth aspects is implemented.

In an eleventh aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, they are used to implement the communication method as described in any one of the first to fourth aspects.

The communication method, device, chip and storage medium provided in the present application solve the problem of how to measure cross-link interference between wireless access network devices by exchanging CLI measurement resources between wireless access network devices and performing CLI measurement between wireless access network devices based on the CLI measurement resources.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

Figure 1 is a schematic diagram of a possible Dynamic/Flexible TDD scenario;

FIG2A is a schematic diagram of a possible sub-band full-duplex time-frequency position;

FIG2B is a schematic diagram of another possible sub-band full-duplex time-frequency position;

FIG2C is a schematic diagram of yet another possible sub-band full-duplex time-frequency position;

FIG2D is a schematic diagram of yet another possible sub-band full-duplex time-frequency position;

FIG3 is a schematic diagram of a possible sub-band full-duplex communication scenario;

FIG4 is a flow chart of a communication method provided in an embodiment of the present application;

FIG5 is a flow chart of another communication method provided in an embodiment of the present application;

FIG6 is a schematic diagram of a first bitmap provided in an embodiment of the present application;

FIG7 is a flow chart of another communication method provided in an embodiment of the present application;

FIG8 is a flow chart of another communication method provided in an embodiment of the present application;

FIG9 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application;

FIG10 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application;

FIG11 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.

The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

First, the network equipment involved in the communication system of the present application is introduced.

The wireless access network device in the embodiment of the present application may be an evolved NodeB (eNB or eNodeB) of the LTE system, or a worldwide interoperability for microwave access. The embodiments of the present application are not limited to the next generation base stations (the next Generation Node B, gNB) in the fifth generation (5th generation, 5G) communication system or the new wireless (new radio, NR) system, the base stations of future communication systems (such as the sixth generation mobile communication system), etc.

The terminal device in the embodiments of the present application may refer to a user equipment (UE), an access terminal device, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal device, a mobile device, a user terminal device, a terminal device, a wireless communication device, a user agent or a user device. The terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved satellite communication system (public land mobile network, PLMN), etc., and the embodiments of the present application are not limited to this.

The subsequent embodiments of the present application are described using the first wireless access network device (gNB1), the second wireless access network device (gNB2), the first terminal device (UE1), the second terminal device (UE2), the third terminal device (UE3), the fourth terminal device (UE4), the fifth terminal device (UE5), and the sixth terminal device (UE6) as examples.

Among them, some terminal devices may be within the cell coverage of the same wireless access network device, for example, the first terminal device, the second terminal device, the third terminal device, and the fourth terminal device are located within the cell coverage of the first wireless access network device, and the first terminal device, the second terminal device, the third terminal device, and the fourth terminal device are wirelessly accessed to the communication system through the first wireless access network device.

Below, the Dynamic/Flexible TDD (dynamic/flexible time division duplex; TDD: Time Division Duplexing) scenario involved in this application and the sub-band full-duplex scenario are introduced in detail.

Scenario 1: Dynamic/Flexible TDD scenario.

Figure 1 is a schematic diagram of a possible Dynamic/Flexible TDD scenario, in which the first wireless access network device and the second wireless access network device are wireless access network devices with close geographical locations.

In the Dynamic/Flexible TDD scenario, the slots of the cells of each radio access network device can be as shown in Figure 1. The first radio access network device and the second radio access network device communicate with the terminal devices within their respective coverage areas on the transmission resources in the same frequency domain. For example, in the scenario shown in Figure 1, the TDD slot configuration of the cell of the first radio access network device is as shown in gNB1slot in Figure 1: downlink transmission on slot 1, and uplink transmission on slots 2-slot 5.

The TDD slot configuration of the cell of the second radio access network device is shown in gNB2slot in Figure 1: downlink transmission is on slot1-slot4, and uplink transmission is on slot5.

Taking this example, in slot 2, the first radio access network device is for uplink transmission, and the second radio access network device is for downlink transmission. Since the transmission power of the radio access network device is relatively large, and the transmission directions of the first radio access network device and the second radio access network device are opposite, the downlink transmission between the fifth terminal device and the second radio access network device, and/or the downlink transmission between the sixth terminal device and the second radio access network device on the transmission resources in the same time-frequency domain will interfere with the uplink transmission between the first radio access network device and the first terminal device and/or the second terminal device and/or the third terminal device and/or the fourth terminal device, and the interference is CLI (Cross link interference). In this example, the first radio access network device is the interfered (Victim) radio access network device, and the second radio access network device is the interferer (Agressor) radio access network device.

Scenario 2: Sub-band full-duplex scenario.

Sub-band full-duplex means that the frequency domain resources are divided into different sub-bands on the wireless access network equipment side, and the Figures 2A to 2D are schematic diagrams of several possible sub-band full-duplex time-frequency positions. As shown in Figures 2A to 2D, the frequency domain corresponding to the base station is divided into multiple sub-bands, which may include: uplink sub-bands, downlink sub-bands, and guard bands.

Among them, the vertical axis of the coordinate system shown in Figures 2A-2D is the frequency domain (frequency domain, f), and the horizontal axis is the time domain (time domain, t). The uplink subband is used for uplink transmission, that is, the time-frequency region marked by uplink (Uplink, U) in Figures 2A-2D; the downlink subband is used for downlink transmission, that is, the time-frequency region marked by downlink (Downlink, D) in Figures 2A-2D; the guard band is an unoccupied frequency band reserved between subbands, that is, the time-frequency region between the uplink subband and the downlink subband in Figures 2A-2D. The guard band is used to isolate the uplink and downlink subbands to prevent mutual interference caused by data transmission.

In sub-band full-duplex, the frequency domain resources can be divided into uplink sub-bands, downlink sub-bands, and guard bands according to actual needs. For example, as shown in Figure 2B, only one uplink sub-band and one downlink sub-band are divided in the frequency domain resources; it can also be shown in Figure 2A that for a sub-band, the sub-band is further divided into uplink resources and downlink resources according to the time domain, thereby realizing the sub-band division as shown in Figures 2C and 2D. It should be understood that how to divide the uplink sub-band, downlink sub-band, and guard band can be determined according to actual needs, and this application does not limit this. Through the above-mentioned division method, sub-band full-duplex technology is realized.

The following is a detailed introduction to the possible existence of CLI between wireless access network devices in the sub-band full-duplex scenario.

The first wireless access network device and the second wireless access network device are wireless access network devices with close geographical locations.

Figure 3 is a schematic diagram of a possible sub-band full-duplex scenario. As shown in Figure 3, the first wireless access network device and the second wireless access network device perform downlink transmission on slot 1, perform sub-band full-duplex on slots 2-slot 4, and can perform uplink transmission and downlink transmission at the same time, and perform uplink transmission on slot 5.

Taking this example, in slot 2, since it is currently in the sub-band full-duplex state, that is, the first wireless access network device and the second wireless access network device are both in the scenario of downlink transmission and uplink reception at the same time in this time slot. At this time, the first terminal device, the second terminal device, and the fourth terminal device perform uplink transmission to the first wireless access network device, and the third terminal device and the first wireless access network device perform downlink transmission; the fifth terminal device and the second wireless access network device perform downlink transmission, and the sixth terminal device performs uplink transmission to the second wireless access network device. In this scenario, the current downlink transmission of the second wireless access network device will cause CLI between wireless access network devices to the current uplink reception of the first wireless access network device, and accordingly, the current downlink transmission of the first wireless access network device will also cause CLI between wireless access network devices to the current uplink reception of the second wireless access network device.

Based on the above scenario, in order to eliminate the CLI between the radio access network devices, it is necessary to measure the CLI between the radio access network devices. However, how to measure the CLI between the radio access network devices is an urgent problem to be solved.

In view of this, the present application provides a communication method, whereby CLI measurement resources can be exchanged between radio access network devices, and CLI measurement between the radio access network devices can be performed based on the exchanged CLI measurement resources.

The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

In the scenarios shown in FIG. 1 and FIG. 3, the communication method provided by the embodiment of the present application is described in detail. FIG. 4 is a flow chart of a communication method provided by the embodiment of the present application. As shown in FIG. 4, the communication method can To include:

S401. A first radio access network device exchanges CLI measurement resource configuration with a second radio access network device.

The CLI measurement resource configuration may include at least one of the following: subcarrier size, cyclic prefix format, resource index of the CLI measurement resource, time domain position of the CLI measurement resource, and frequency domain position of the CLI measurement resource. The subcarrier size is used to indicate the size of the subcarrier where the CLI measurement resource is located; the cyclic prefix format is used to indicate the format of the time domain symbol in the CLI measurement resource; the frequency domain position of the CLI measurement resource may be indicated by a resource indication value (RIV); the time domain position of the CLI measurement resource may be indicated by the period of CLI measurement between wireless access network devices, and the time slot position at the beginning of each measurement period CLI measurement, for example, the number of starting symbols and continuous symbols in the time domain position may be indicated by a length indicator (SLIV).

Optionally, the CLI measurement resource may also be associated with other signals to be indirectly indicated by the identifiers of other signals. For example, the CLI measurement resource is associated with a channel state information reference signal (CSI-RS), so the CLI measurement resource configuration may indirectly indicate the CLI measurement resource used by carrying the identifier of the CSI-RS. The identifier of the CSI-RS mentioned here may be, for example, an index of the CSI-RS. Alternatively, the CLI measurement resource is associated with a synchronization signal and a PBCH block (SSB), so the CLI measurement resource configuration may indirectly indicate the CLI measurement resource used by carrying the identifier of the SSB. The identifier of the SSB mentioned here may be, for example, an index of the SSB. Alternatively, the CLI measurement resource is associated with an uplink demodulation reference signal (DMRS), so the CLI measurement resource configuration may indirectly indicate the CLI measurement resource used by carrying the identifier of the DMRS. The identifier of the DMRS mentioned here may be, for example, an index of the CSI-RS.

The first radio access network device and the second radio access network device may interact with each other on the CLI measurement resource configuration via an interface used for communication between radio access network devices, and the interface may be, for example, an Xn interface.

For example, the second wireless access network device may send the CLI measurement resource configuration to the first wireless access network device; or, the first wireless access network device may send the CLI measurement resource configuration to the second wireless access network device; or, the first wireless access network device may send a CLI measurement request to the second wireless access network device, and the second wireless access network device returns the CLI measurement resource configuration to the first wireless access network device based on the request; or, the second wireless access network device may send a CLI measurement request to the first wireless access network device, and the first wireless access network device returns the CLI measurement resource configuration to the second wireless access network device based on the request, etc.

It should be understood that the above are only exemplary ways of exchanging CLI measurement resource configuration between the first radio access network device and the second radio access network device. Of course, other interactive processes can also be used between the first radio access network device and the second radio access network device to implement CLI measurement resource configuration, and this application is not limited to this.

The CLI measurement resource configuration interacted by the radio access network device through the Xn interface may include at least one of the following: subcarrier spacing, cyclic prefix format, resource identifier of the CLI measurement resource, frequency domain position, and time domain position.

Among them, the CLI measurement resource configuration indicates the subcarrier spacing of the CLI measurement resource and the cyclic prefix through two configurations: subcarrier spacing and cyclic prefix format; the CLI measurement resource is indicated by the resource identifier of the CLI measurement resource, and the time-frequency position of the CLI measurement resource is indicated by the frequency domain position allocation and the time domain position allocation. Optionally, the frequency domain position allocation can be indicated by RIV, and the time domain position allocation can be determined by the period of the CLI measurement resource in the time domain position, and the offset in the time domain position, or SLIV indication. Optionally, it can also be indicated by the above-mentioned CSI-RS, DMRS, SSB and other signals.

S402: The first radio access network device measures the first radio access network device according to the CLI measurement resource configuration. The CLI between the second radio access network device and the second radio access network device.

Correspondingly, the second radio access network device performs CLI measurement with the first radio access network device according to the CLI measurement resource configuration, so that the first radio access network device obtains the CLI between the first radio access network device and the second radio access network device.

Exemplarily, the second wireless access network device sends an interference signal on the corresponding CLI measurement resource according to the CLI measurement resource configuration, and the first wireless access network device sends a receiving signal on the corresponding CLI measurement resource according to the CLI measurement resource configuration to receive the interference signal, thereby performing CLI measurement.

It should be noted that the CLI measurement resource involved in this embodiment can be used by the first wireless access network device to measure the CLI between the first wireless access network device and the second wireless access network device. That is, the second wireless access network device sends an interference signal, and the first wireless access device performs CLI measurement based on the interference signal. Optionally, the CLI measurement resource can also be further used by the second wireless access network device to measure the CLI between the first wireless access network device and the second wireless access network device. That is, the first wireless access network device sends an interference signal, and the second wireless access device performs CLI measurement based on the interference signal.

Optionally, the second wireless access device may perform CLI measurement after the first wireless access device completes CLI measurement, or the first wireless access device may perform CLI measurement after the second wireless access device completes CLI measurement. Alternatively, the second wireless access device and the first wireless access network device use a separate process to exchange CLI measurement resources for the second wireless access device to perform CLI measurement, and the CLI measurement resources exchanged in the current process are only used for the first wireless access device to perform CLI measurement.

The communication method provided in the embodiment of the present application can exchange CLI measurement resources between wireless access network devices, and perform CLI measurement between wireless access network devices based on the CLI measurement resources, thereby solving the problem of how to measure cross-link interference between wireless access network devices.

Continuing to refer to the communication scenario as shown in Figure 3, when measuring the CLI between radio access network devices in this scenario, the first radio access network device performs CLI measurement by receiving the interference signal emitted by the second radio access network device on the CLI measurement resource. When there is a terminal device that is performing uplink transmission within the cell covered by the first radio access network device (such as UE1 in Figure 3), the first radio access network device receives not only the interference signal emitted by the second radio access network device when performing CLI measurement, but also the uplink signal emitted by the terminal device UE1. Therefore, the CLI between the radio access network devices measured by the first radio access network device will be affected by the uplink signal of the terminal device UE1, resulting in lower accuracy of the measured CLI.

Therefore, on the basis of the above embodiment, the embodiment of the present application may also adopt the following methods to reduce the influence of the terminal device for uplink transmission within the cell covered by the first radio access network device on the CLI measurement between radio access network devices:

Implementation method A: Punch the uplink transmission of the uplink transmission terminal device.

FIG5 is a flow chart of another communication method provided in an embodiment of the present application. As shown in FIG5 , the method may include:

S501. A first radio access network device sends first indication information to a first terminal device within a cell coverage area of the first radio access network device according to a CLI measurement resource configuration.

Correspondingly, the first terminal device receives the first indication information, wherein the first terminal device is a terminal device of a first target resource in which uplink transmission resources overlap with CLI measurement resources within the cell coverage of the first radio access network device.

The first indication information is used to instruct the first terminal device to perform uplink transmission puncturing on the first target resource; the first target resource includes: resources where the uplink transmission resources of the first terminal device overlap with CLI measurement resources.

The first target resource may include only resources in which uplink transmission resources overlap with CLI measurement resources, or the first target resource may include uplink transmission resources of the first terminal device, or the first target resource may include CLI measurement resources.

Since the first target resources at least include resources that overlap the uplink transmission resources and the CLI measurement resources, if the first terminal device performs uplink transmission on the overlapping resources, it will interfere with the CLI measurement.

Therefore, through the method of this embodiment, the first terminal device can be instructed to perform uplink transmission punching on the first target resource so that the first terminal device does not perform uplink transmission on the first target resource, thereby eliminating the influence of the uplink transmission of the first terminal device on the CLI measurement of the first wireless access network device on the CLI measurement resource, thereby improving the accuracy of the CLI measurement between the first wireless access network device and the second wireless access network device by the first wireless access network device.

The first indication information can indicate the first terminal device to perform uplink transmission puncturing on the first target resource by indicating the location of the first target resource. The indication method of the location of the above-mentioned first target resource can be determined based on the resource division unit, which is specifically related to the division unit adopted by the communication system. For example, the resource division unit can be divided in units of resource blocks (Resource Block, RB), or in units of resource elements (Resource Element, RE), etc.

The following is a detailed introduction of uplink transmission puncturing based on RB-level resources in the first target resources and based on RE-level resources in the first target resources.

Implementation method A1: Uplink transmission puncturing based on resource block (RB) level.

In a possible implementation manner, the first indication information includes first frequency domain resource sub-indication information and first time domain resource sub-indication information, the first frequency domain resource sub-indication information is used to indicate at least one RB included in the first target resource in the frequency domain, and the first time domain resource sub-indication information is used to indicate at least one time domain symbol included in the first target resource in the time domain, and the time domain symbol can be, for example, an orthogonal frequency division multiplexing (OFDM) symbol, etc.

The first indication information may be carried in downlink control information (DCI) and sent to the terminal device. For example, the DCI may be DCI 2_4, the first frequency domain resource sub-indication information may be frequencyRegionforCI in timeFrequencyRegion in DCI 2_4, and the first time domain resource sub-indication information may be timeDurationforCI in timeFrequencyRegion in DCI 2_4.

This implementation method can be used in the Dynamic/Flexible TDD scenario mentioned above, or in the sub-band full-duplex scenario.

It should be noted that when applied to a sub-band full-duplex scenario, the time domain symbol indicated by the first time domain resource sub-indication information may also include a sub-band full-duplex symbol. The sub-band full-duplex symbol may indicate that in the time slot, there are both time domain symbols configured for uplink transmission and time domain symbols configured for downlink transmission. The sub-band full-duplex symbol is shown in slot2-slot4 in Figure 3, for example. Since the uplink transmission resource is punched according to the first target resource, it is to prevent the first terminal device from performing uplink transmission to the first wireless access network device at the first target resource, thereby eliminating the impact on the CLI measurement of the first wireless access network device. Therefore, at least one time domain symbol contained in the time domain of the first target resource includes a sub-band full-duplex symbol and/or an uplink symbol, so as to completely shield the uplink transmission resource. All uplink transmission resources that affect CLI measurement.

In the sub-band full-duplex scenario, another possible implementation is that a mapping relationship exists between the CLI measurement resource and the uplink sub-band and/or the guard band. The mapping relationship may refer to the uplink sub-band and/or the guard band used by the CLI measurement resource.

Therefore, in this implementation, the first indication information may include: an identifier of an uplink subband and/or a guard band corresponding to the first target resource, so as to indicate the first target resource through the identifier of the uplink subband and/or the guard band.

Wherein, when the CLI measurement resource is configured on an uplink subband, the first indication information includes an identifier of an uplink subband corresponding to the first target resource, and the uplink subband is the same subband as the uplink subband on which the CLI measurement resource is configured; when the CLI measurement resource is configured on a protection band, the first indication information includes an identifier of an uplink subband and/or a protection band corresponding to the first target resource, and the protection band is the same protection band as the protection band on which the CLI measurement resource is configured, and the uplink subband is an uplink subband adjacent to the protection band. If the first indication information only indicates an uplink subband corresponding to the first target resource, the first terminal device only punctures the uplink subband; if the first indication information indicates an uplink subband and/or a protection band corresponding to the first target resource, the first terminal device punctures the uplink subband and the protection band adjacent to the uplink subband.

In this implementation, the first terminal device has a preset mapping relationship between CLI measurement resources and uplink subbands and/or protection bands. The mapping relationship may be predefined in the protocol, or may be dynamically or semi-statically indicated to the first terminal device by the first radio access network device in advance.

Through this implementation method, it is only necessary to indicate the identifier of the uplink subband and/or protection band in the first indication information to realize the perforation of the uplink subband and/or protection band, and there is no need to carry the first frequency domain resource sub-indication information and the first time domain resource sub-indication information, thereby reducing the signaling overhead of the first indication information.

The method described in implementation mode A1 provided in the embodiment of the present application performs puncturing on the portion of the uplink transmission resource of the first terminal device that overlaps with the CLI measurement resource at the RB level, so that the first terminal device does not perform uplink transmission to the first wireless access network device at the puncturing position of the uplink transmission resource, thereby eliminating the influence of the uplink transmission of the first terminal device on the CLI measurement of the first wireless access network device, and improving the accuracy of the CLI measurement between the first wireless access network device and the second wireless access network device by the first wireless access network device.

Implementation method A2: Uplink transmission puncturing based on resource element (RE) level.

The time-frequency position of the uplink transmission puncturing is associated with the information carried in the first indication information. The following three implementations explain how to instruct the first terminal device to perform uplink transmission puncturing according to the association.

Implementation A2-1: Uplink transmission puncturing is indicated according to the CLI reference signal (RS) (i.e., CLI_RS). This implementation can be applied to the Dynamic/Flexible TDD scenario shown in Figure 1, and the sub-band full-duplex scenario shown in Figure 3.

In this implementation, there is a mapping relationship between the CLI_RS and the preset RE-level-based uplink transmission puncturing position, and the first terminal can determine the first target resource requiring uplink transmission puncturing according to the association between the CLI_RS and the uplink transmission puncturing position.

Among them, at least one CLI_RS identification information may be stored in the first terminal device, the first indication information may indicate the identification information of the CLI_RS of the first terminal device, and the first terminal device determines the position of the puncturing on the corresponding uplink transmission resource according to the identification of the CLI_RS. The position of the uplink transmission puncturing indicated by the target CLI_RS overlaps with the CLI measurement resource.

The first indication information may be dynamically sent by the first wireless access network device to the first terminal device. That is, the first wireless access network device determines and sends it to the first terminal device according to the CLI measurement resource configuration during each CLI measurement; it can also be sent to the first terminal device semi-dynamically, that is, within a period of time, the CLI measurement resource configuration of the first wireless access network device and the second wireless access network device remains unchanged, then the first indication information can also instruct the first terminal device to perform uplink transmission punching on the first target resource within the time period for multiple CLI measurement behaviors of the same CLI measurement resource; it can also be a static indication of the first terminal device, that is, the CLI measurement resource configuration of the first wireless access network device and the second wireless access network device is unchanged, and the uplink transmission punching position indicated by the first indication information is also unchanged, and the first wireless access network device only needs to send the first indication information to the first terminal device once to instruct the first terminal device to perform uplink transmission punching according to the CLI measurement period.

Implementation A2-2: Instructing uplink transmission puncturing according to the association relationship between the first target resource and the target subband. This implementation is applicable to the subband full-duplex scenario shown in FIG3 .

In this implementation, the first target resource is associated with the target subband, and the first terminal can determine the target subband that needs to be punctured and how to perform uplink transmission puncturing on the target subband based on the association between the first target resource and the target subband.

The target subband may be an uplink subband and/or a guard band. When the first wireless access network device performs CLI measurement through an uplink subband, the target subband is an uplink subband, and the uplink subband is used for uplink transmission from the first terminal device to the first wireless access network device; when the first wireless access network device performs CLI measurement through a guard band, the target subband is an uplink subband and a guard band adjacent to the uplink subband. In this case, the guard band is determined, and the uplink subband adjacent to the guard band is determined based on the guard band, thereby determining the target subband.

In a possible implementation, the first indication information includes: second time domain resource sub-indication information, where the second time domain resource sub-indication information is used to indicate the time domain offset and/or time domain length of at least one resource element included in the first target resource on the target subband.

In this implementation, the time domain offset indicated by the second time domain resource sub-indication information is an offset based on the time domain starting position of the target sub-band, and the time domain length refers to the length of the continuous time domain symbols that need to be punctured during puncturing. The first radio access network device can indicate the position of each RE belonging to the first target resource on the target sub-band through the second time domain resource sub-indication information, so that the first terminal device does not perform uplink transmission on the first target resource through puncturing on the target sub-band, so as to eliminate the influence of the uplink transmission of the first terminal device on the first target resource on the CLI measurement.

Optionally, when the resource elements included in the first target resource are continuous on the target subband, the starting position of the puncturing can be determined according to the time domain offset, and the number or length of the time domain symbols to be punctured can be determined by the time domain length.

Optionally, when the resource elements included in the first target resource are only partially continuous or all are discontinuous on the target subband, the time domain position of each part of the resource elements can be determined based on multiple pairs of time domain offset and time domain length information included in the second time domain resource sub-indication information.

Optionally, when the positions of resource elements included in the first target resource on the target subband start from the starting time domain position of the target subband and all resource elements are continuous, the time domain position that needs to be punctured on the target subband can be determined only by the time domain length.

Optionally, when the resource elements included in the first target resource are all spaced at fixed intervals on the target sub-band, the time domain position on the target sub-band that needs to be punctured may be determined only by the time domain offset.

It should be understood that the above are only several examples provided in the present application according to at least one resource included in the first target resource. The possible implementation method of determining the time domain position of the target subband puncturing by the time domain offset and/or time domain length of the source element on the target subband, the present application does not limit the determination method adopted in different situations, and they are not listed here one by one.

In another possible implementation, the first indication information includes: a first bitmap corresponding to the target subband; wherein at least some bits in the first bitmap are associated with resource elements included in the first target resource, and are used to indicate that the resource elements included in the first target resource are punctured for uplink transmission.

In this implementation, the first bitmap is used to indicate part or all of the resource elements on the target subband, and the time domain positions of the resource elements included in the first target resource on the target subband are indicated by the bits included in the first bitmap, thereby determining the puncturing positions on the target subband. Exemplarily, Figure 6 is a schematic diagram of a first bitmap provided in an embodiment of the present application. In the first bitmap, 0 represents the time domain position where puncturing is required, and 1 represents the time domain position where puncturing is not required. The first terminal device performs uplink transmission puncturing at the time domain position corresponding to the position where the bit is 0 according to the first bitmap corresponding to the target subband. Among them, a bit in the first bitmap can represent one RE or multiple REs, and the present application does not impose any restrictions on this.

Implementation A2-3: Instructing uplink transmission puncturing according to the association relationship between the first target resource and the frequency domain resource. This implementation is applicable to the sub-band full-duplex scenario shown in FIG3 .

In this implementation, the first target resource is associated with the frequency domain resource, and the frequency domain resource is determined according to the frequency domain corresponding to the CLI measurement resource. The first terminal can determine how to perform uplink transmission puncturing according to the association between the first target resource and the target subband. The frequency domain resource is a frequency domain resource of an uplink transmission resource for uplink transmission from the first terminal device to the first wireless access network device.

In a possible implementation manner, the first indication information includes: third time domain resource sub-indication information, where the third time domain resource sub-indication information is used to indicate the time domain offset and/or time domain length of at least one resource element included in the first target resource.

In this implementation, the method for determining the position of at least one resource element contained in the first target resource on the frequency domain resource through the third time domain resource sub-indication information is different from the method in implementation A2-2 only in that the starting position of the time domain offset reference is different. In this implementation, the starting position of the time domain offset reference is the 0 position of the frequency domain resource, not the starting position of the uplink subband in the uplink resource. For other similar contents, this application will not be repeated here.

In another possible implementation, the first indication information includes: a second bitmap corresponding to the target frequency domain resources. At least some of the bits in the second bitmap are associated with the resource elements included in the first target resources, and are used to indicate that the resource elements included in the first target resources are punctured for uplink transmission. A bit in the second bitmap can represent one RE or multiple REs, and this application does not limit this.

In this implementation, the second bitmap is used to identify the puncturing positions of the resource elements included in the first target resource on the target frequency domain resources, which is similar to the corresponding method in implementation A2-2 and will not be repeated here.

It should be noted that the first indication information of uplink transmission puncturing based on the RE level in the above implementation A2 may be carried in the DCI and sent to the first terminal device. The DCI may be a DCI in an existing format, for example, DCI2_4. Exemplarily, the first indication information may be carried by using the original IE in DCI 2_4, or an IE for carrying the first indication information may be added to DCI 2_4. The DCI may be a DCI in a newly added format, specifically used to carry the first indication information, etc.

The method described in implementation mode A2 provided in the embodiment of the present application uses multiple implementation modes to perform puncturing on the RE level for the portion of the uplink transmission resource of the first terminal device that overlaps with the CLI measurement resource, so that the first terminal The device does not perform uplink transmission to the first wireless access network device at the location where the uplink transmission resource is punched, thereby eliminating the influence of the uplink transmission of the first terminal device on the CLI measurement of the first wireless access network device, and improving the accuracy of the CLI measurement between the first wireless access network device and the second wireless access network device by the first wireless access network device.

It should be understood that the above is only an example of how to perform uplink transmission puncturing, taking the resource division unit as RB or RE as the unit. In specific implementation, other division units may also be used for uplink transmission puncturing, which is related to the resource division unit used by the communication system and will not be described in detail.

S502. The first terminal device determines, based on the first indication information, that the first target resource is not used for uplink transmission to the first radio access network device.

That is, the first terminal device will not perform any uplink transmission on the first target resource. In this way, uplink transmission puncturing of the first terminal device on the first target resource can be achieved.

The method provided in the present application can avoid the first terminal device from performing uplink transmission to the first wireless access network device at the perforated location by punching holes in the uplink transmission resources for uplink transmission from the first terminal device to the first wireless access network device, thereby eliminating the influence of the uplink transmission of the first terminal device on the CLI measurement of the first wireless access network device.

Implementation method B: changing the beam direction of the uplink transmission resource of the uplink transmission terminal device.

FIG7 is a flow chart of another communication method provided in an embodiment of the present application. As shown in FIG7 , the method may include:

S701. The first radio access network device sends second indication information to a second terminal device within the cell coverage of the first radio access network device according to CLI measurement resource configuration.

Correspondingly, the second terminal device receives the second indication information from the first wireless access network device.

Among them, the second terminal device is also a terminal device used for uplink transmission to the first wireless access network device within the cell coverage of the first wireless access network device, and the main difference between it and the first terminal device is that the way of adjusting the uplink transmission resources is different. The second indication information is used to instruct the second terminal device to perform CLI measurement between terminal devices on the second target resource. The second target resource includes: the uplink transmission resource of the second terminal device overlaps with the CLI measurement resource indicated by the CLI measurement resource configuration.

Continuing to refer to FIG. 2, when there is a third terminal device for downlink transmission within the cell coverage of the first wireless access network device, since the third terminal device and the terminal device for uplink transmission have opposite transmission directions at the same time point, there is a CLI between the third terminal device and the terminal device for uplink transmission. The CLI between the terminal devices is similar to the CLI between wireless access network devices in the Dynamic/Flexible TDD scenario, and will not be repeated here. Therefore, to solve the CLI between terminal devices, it is also necessary to measure the CLI between multiple terminal devices.

Therefore, in this embodiment, the second terminal device can perform CLI measurement between terminal devices with the downlink terminal within the coverage of the first wireless access network device cell according to the instruction of the second indication information. In this embodiment of the application, the third terminal device is a downlink terminal within the coverage of the first wireless access network device cell.

The first radio access network device determines the CLI measurement resource according to the CLI measurement resource configuration, and then enables the second terminal device to use the uplink transmission resource to perform inter-terminal device CLI measurement with other terminal devices according to the CLI measurement resource, so as to reduce the influence of the uplink transmission of the second terminal device on the CLI measurement.

S702. The first wireless access network device sends a third indication message to a third terminal device within the cell coverage of the first wireless access network device. The third indication message is used to instruct the third terminal device to perform CLI measurement on the second target resource. There is a terminal device with downlink transmission within the cell covered by the first wireless access network device of the third terminal device, and the downlink transmission resource of the third terminal device overlaps with the second target resource. The third terminal device performs CLI measurement between terminal devices on the second target resource according to the received third indication message.

It should be understood that the present application does not limit the order of the action of the first wireless access network device sending the third indication information to the third terminal device and the action of the first wireless access network device sending the second indication information to the second terminal device. The first wireless access network device may send the second indication information first, or may send the third indication information first. In FIG. 7 , the present application takes the execution of step S701 as an example.

Alternatively, the first terminal device may broadcast its resource configuration for performing CLI measurement, so that a third terminal device within the cell coverage of the first wireless access network device performs CLI measurement between terminal devices on the second target resource after listening to the broadcast.

S703: The second terminal device performs CLI measurement between terminal devices on the second target resource according to the second indication information.

In a possible implementation manner, the second indication information includes: an identifier of a receiving beam used when the first radio access network device performs CLI measurement.

The identifier is used to indicate the receiving beam used by the first radio access network device for CLI measurement. The identifier may be, for example, an index of the receiving beam, a character that can refer to the receiving beam, etc., and this application does not impose any restrictions on this. The second terminal device determines the first transmitting beam with the smallest reference signal receiving power (RSRP) with respect to the receiving beam based on the identifier of the receiving beam used by the first radio access network device for CLI measurement. The transmitting beam is used to send an interference signal on the second target resource so that other terminal devices can perform inter-terminal CLI measurements based on the interference signal.

Since the RSRP of the receiving beam on the uplink transmission resource where the first transmitting beam and the receiving beam used for CLI measurement between wireless access network devices are located is the smallest, the impact of the second terminal device on the CLI measurement of the first wireless access network device can be reduced.

In another possible implementation, the second indication information includes: an identifier of the first transmission beam used by the second terminal device to perform the CLI measurement between terminal devices on the target resource. That is, in this implementation, the transmission beam used by the second terminal device is determined by the first wireless access network device. The manner in which the first wireless access network device determines the transmission beam used by the second terminal device may be, for example, the manner in which the second terminal device determines the transmission beam as described above, which will not be described in detail.

In another possible implementation, the second indication information includes: an identifier of the receiving beam used by the first wireless access network device when measuring CLI, and an identifier of the first transmitting beam used by the second terminal device to perform CLI measurement between terminal devices on the target resource. That is, in this implementation, the first wireless access network device preliminarily determines the transmitting beam used by the second terminal device, and after receiving the second indication information, the second terminal device can comprehensively determine the transmitting beam finally used based on the identifier of the receiving beam used by the first wireless access network device when measuring CLI, and the preliminarily determined transmitting beam used by the second terminal device.

It should be noted that the second indication information and the third indication information in the above implementation method B can be a DCI in a newly added format, which is specifically used to carry the second indication information or the third indication information.

The method provided in the embodiment of the present application changes the direction of the transmitting beam of the second terminal device so that when the second terminal device does not perform uplink transmission to the first wireless access network device, CLI measurement between terminal devices is performed on the second target resource, thereby reducing the impact of the uplink transmission of the second terminal device on the CLI measurement of the first wireless access network device and improving the utilization rate of the uplink transmission resources.

Implementation method C: adjusting the uplink transmission resources of the uplink transmission terminal device to resources that are orthogonal to the CLI measurement resources.

In this implementation, the CLI measurement resource configuration includes the demodulation reference signal (DMRS) used by the CLI measurement, and the CLI measurement resources.

FIG8 is a flow chart of another communication method provided in an embodiment of the present application. As shown in FIG8 , the method may include:

S801. A first radio access network device sends fourth indication information to a fourth terminal device within a cell coverage of the first radio access network device according to a first DMRS.

Correspondingly, the fourth terminal device receives the fourth indication information sent by the first wireless access network device.

The fourth terminal device is also a terminal device used for uplink transmission to the first wireless access network device within the cell coverage of the first wireless access network device, which will not be described in detail here. The fourth indication information is used to indicate the second DMRS used by the fourth terminal device for uplink transmission on the third target resource, and the second DMRS is orthogonal to the first DMRS. The third target resource includes: the uplink transmission resources of the fourth terminal device overlap with the CLI measurement resources.

When the first radio access network device interacts with the second radio access network device for CLI measurement resource configuration, the time-frequency position corresponding to the CLI measurement resource and the DMRS sequence are obtained. The time-frequency position is the time-frequency position indicated in the first DMRS (uplink DMRS, the uplink DMRS is the DMRS corresponding to the uplink transmission resource of the first radio access network device) of the first radio access network device, and the resource sequence is the same as the sequence of the first DMRS (uplink DMRS) of the first radio access network device. The first radio access network device determines the time-frequency position of the second DMRS used to indicate that the fourth terminal device performs uplink transmission on the third target resource, and the DMRS sequence based on the time-frequency position and the DMRS sequence. Among them, the time-frequency position indicated by the second DMRS is the same as the time-frequency position indicated by the first DMRS, but the sequence is different, and the second DMRS is orthogonal to the first DMRS.

The first radio access network device determines the fourth indication information according to the time-frequency position indicated by the first DMRS and the DMRS sequence. The fourth indication information may include the time-frequency position indicated by the first DMRS and the DMRS sequence; or may include the time-frequency position of the second DMRS obtained according to the first DMRS and the DMRS sequence; or, the second DMRS is pre-stored in the fourth terminal device, and the fourth indication information only indicates how the fourth terminal device selects the second DMRS, for example, the fourth indication information may include the identifier of the second DMRS, etc.

S802: The first radio access network device measures the CLI between the first radio access network device and the second radio access network device on the CLI measurement resource, and receives the uplink transmission signal of the fourth terminal device on the third target resource.

The fourth terminal device determines the second DMRS according to the implementation method of the fourth indication information, and determines the third target resource according to the second DMRS. The fourth terminal device performs uplink transmission to the first wireless access network device on the third target resource, and the third target resource is orthogonal to the CLI measurement resource used by the first wireless access network device for CLI measurement. According to the orthogonality of DMRS, at this time, the fourth terminal device performs uplink transmission to the first wireless access network device on the third target resource, which can reduce the impact on the CLI measurement of the first wireless access network device.

It should be noted that the fourth indication information in the above implementation C may be carried in the DCI and sent to the fourth terminal device. The DCI may be a DCI in an existing format. For example, the fourth indication information may be carried by using the original IE in the existing DCI, or an IE for carrying the fourth indication information may be added to the existing DCI. The DCI may be a DCI in a newly added format, specifically used to carry the fourth indication information, etc.

The method provided in the embodiment of the present application adjusts the uplink transmission resources of the fourth terminal device to resources orthogonal to the CLI measurement resources, thereby reducing the influence of the uplink transmission of the fourth terminal device to the first wireless access network device on the third target resource on the CLI measurement of the first wireless access network device according to the orthogonality of DMRS, thereby achieving the technical effect that the second terminal device can still perform uplink transmission to the first wireless access network device when the first wireless access network device is measuring the CLI, thereby improving the resource reuse rate.

For the three uplink transmission resource indication methods provided in the above embodiments, when there are multiple uplink transmission terminal devices within the cell covered by the first wireless access network device, the same uplink transmission resource indication method can be executed on all the uplink transmission terminal devices, or different uplink transmission resource indication methods can be executed on different uplink transmission terminal devices at the same time. This application does not impose any restrictions on this.

Fig. 9 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. As shown in Fig. 9 , the communication device may include: a transceiver module 11 and a processing module 12 .

When the communication device is applied to the first radio access network device:

The transceiver module 11 is used to interact with the second radio access network device to configure cross-link interference CLI measurement resources.

The processing module 12 is configured to measure the CLI between the first radio access network device and the second radio access network device according to the CLI measurement resource configuration.

Optionally, the transceiver module 11 is also used to send a first indication message to a first terminal device within the cell coverage of the first wireless access network device according to the CLI measurement resource configuration. The first indication message is used to instruct the first terminal device to perform uplink transmission punching on the first target resource; the first target resource includes: the uplink transmission resource of the first terminal device overlaps with the CLI measurement resource indicated by the CLI measurement resource configuration. In this implementation, the first indication message includes a first frequency domain resource sub-indication information and a first time domain resource sub-indication information, the first frequency domain resource sub-indication information is used to indicate at least one RB included in the frequency domain of the first target resource, the first time domain resource sub-indication information is used to indicate at least one time domain symbol included in the time domain of the first target resource, and the time domain symbol includes a sub-band full-duplex symbol. Alternatively, the first indication message includes: an identifier of the uplink sub-band and/or protection band corresponding to the first target resource.

In a possible implementation manner, the CLI measurement resource configuration includes: configuration information of a CLI reference signal RS, the CLI_RS has a mapping relationship with the CLI measurement resource in at least one CLI measurement period, and the first indication information includes: an identifier of the CLI_RS.

Another possible implementation is that the first target resource is associated with a target subband, and the target subband includes: an uplink subband and/or a guard band. The first indication information includes: second time domain resource sub-indication information, and the second time domain resource sub-indication information is used to indicate the time domain offset and/or time domain length of at least one resource element included in the first target resource on the target subband. Or, the first bitmap corresponding to the target subband; wherein at least part of the bits in the first bitmap are associated with the resource elements included in the first target resource, and are used to indicate that the resource elements included in the first target resource are punctured for uplink transmission.

In another possible implementation, the first target resource is associated with the target frequency domain resource. The first indication information includes: third time domain resource sub-indication information, the third time domain resource sub-indication information is used to indicate the first target resource. The time domain offset and/or time domain length of at least one resource element included in a target resource. Or, a second bitmap corresponding to the target frequency domain resource; wherein at least some bits in the second bitmap are associated with the resource elements included in the first target resource, and are used to indicate that the resource elements included in the first target resource are punctured for uplink transmission.

Optionally, the transceiver module 11 is also used to send second indication information to a second terminal device within the cell coverage of the first wireless access network device according to the CLI measurement resource configuration, and the second indication information is used to instruct the second terminal device to perform CLI measurement between terminal devices on a second target resource; the second target resource includes: the uplink transmission resource of the second terminal device that has the least impact on the CLI measurement resource indicated by the CLI measurement resource configuration.

In this implementation, the second indication information includes: the identifier of the receiving beam used by the first wireless access network device for CLI measurement, and/or the identifier of the transmitting beam used by the second terminal device for CLI measurement on the second target resource.

For this implementation method, the transceiver module 11 is also used to send third indication information to a third terminal device within the cell coverage of the first wireless access network device, and the third indication information is used to instruct the third terminal device to perform CLI measurement on the second target resource; the downlink transmission resources of the third terminal device overlap with the second target resource.

Optionally, the transceiver module 11 is also used to send fourth indication information to a fourth terminal device within the cell coverage of the first wireless access network device based on the first DMRS, and the fourth indication information is used to indicate the second DMRS used by the fourth terminal device for uplink transmission on the third target resource, and the second DMRS is orthogonal to the first DMRS. The third target resource includes: resources whose uplink transmission resources of the fourth terminal device overlap with the CLI measurement resources.

In this implementation, the processing module 12 is specifically used to measure the CLI between the first radio access network device and the second radio access network device on the CLI measurement resource. The transceiver module 11 is also used to receive the uplink signal of the fourth terminal device on the third target resource.

The communication device provided in this embodiment can execute the actions of the first wireless access network device in the aforementioned method embodiment, and its implementation principle and technical effects are similar, which will not be repeated here.

When the communication device is applied to the second radio access network device:

The transceiver module 11 is used to interact with the first radio access network device to configure cross-link interference CLI measurement resources;

The processing module 12 is configured to perform CLI measurement with the first radio access network device according to the CLI measurement resource configuration, so that the first radio access network device obtains the CLI between the first radio access network device and the second radio access network device.

The communication device provided in this embodiment can execute the actions of the second wireless access network device in the aforementioned method embodiment, and its implementation principle and technical effects are similar, which will not be repeated here.

When the communication device is applied to the second terminal device:

The transceiver module 11 is used to receive second indication information from the first radio access network device, where the second indication information is used to instruct the second terminal device to perform CLI measurement on a second target resource; the second target resource includes: a resource on which the uplink transmission resource of the second terminal device has the least impact on the CLI measurement resource, where the CLI measurement resource is indicated by the cross-link interference CLI measurement resource configuration for interaction between the first radio access network device and the second radio access network device;

The processing module 12 is used to perform CLI between terminal devices on the second target resource according to the second indication information. Measurement.

Optionally, the second indication information includes: the identifier of the receiving beam used by the first wireless access network device for CLI measurement; and/or the identifier of the first transmitting beam used by the second terminal device for CLI measurement on the target resource; the first transmitting beam is the transmitting beam with the smallest reference signal received power RSRP between the receiving beam and the first transmitting beam among all transmitting beams of the second terminal device.

In a possible implementation, the second indication information includes: an identifier of a receiving beam used by the first wireless access network device for CLI measurement. The processing module 12 is further used to determine the first transmitting beam according to the identifier of the receiving beam. The transceiver module 11 uses the first transmitting beam to send an interference signal for CLI measurement between terminal devices on the second target resource.

The communication device provided in this embodiment can execute the actions of the second terminal device in the aforementioned method embodiment. Its implementation principle and technical effects are similar and will not be repeated here.

Fig. 10 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application, and the communication device is applied to a first terminal device. As shown in Fig. 10 , the communication device may include: a receiving module 21 and a processing module 22 .

The receiving module 21 is used to receive first indication information from a first radio access network device, where the first indication information is used to instruct the first terminal device to perform uplink transmission puncturing on a first target resource; the first target resource includes: a resource where an uplink transmission resource of the first terminal device overlaps with a CLI measurement resource, where the CLI measurement resource is indicated by a cross-link interference CLI measurement resource configuration for interaction between the first radio access network device and the second radio access network device;

The processing module 22 is used to determine, according to the first indication information, that the first target resource is not used for uplink transmission to the first radio access network device.

In a possible implementation, the first indication information includes first frequency domain resource sub-indication information and first time domain resource sub-indication information, the first frequency domain resource sub-indication information is used to indicate at least one RB included in the frequency domain of the first target resource, and the first time domain resource sub-indication information is used to indicate at least one time domain symbol included in the time domain of the first target resource; the time domain symbol includes a sub-band full-duplex symbol. Alternatively, the first indication information includes: an identifier of an uplink sub-band and/or a guard band corresponding to the first target resource.

In another possible implementation, the CLI measurement resource configuration includes: configuration information of a CLI reference signal RS, and a CLI_RS has a mapping relationship with the CLI measurement resource in at least one CLI measurement period. The first indication information includes: an identifier of the CLI_RS.

Optionally, the first target resource is associated with a target subband, and the target subband includes: an uplink subband and/or a guard band. The first indication information includes: second time domain resource sub-indication information, and the second time domain resource sub-indication information is used to indicate the time domain offset and/or time domain length of at least one resource element included in the first target resource on the target subband. Or, the first bitmap corresponding to the target subband; wherein at least part of the bits in the first bitmap are associated with the resource elements included in the first target resource, and are used to indicate that the resource elements included in the first target resource are punctured for uplink transmission.

Optionally, the first target resource is associated with the target frequency domain resource. The first indication information includes: third time domain resource sub-indication information, the third time domain resource sub-indication information is used to indicate the time domain offset and/or time domain length of at least one resource element included in the first target resource. Or, a second bitmap corresponding to the target frequency domain resource; wherein at least part of the bits in the second bitmap are associated with the resource elements included in the first target resource, and are used to indicate that the resource elements included in the first target resource are punctured for uplink transmission.

The communication device provided in this embodiment can execute the actions of the first terminal device in the aforementioned method embodiment, and its implementation principle and technical effects are similar, which will not be repeated here.

Optionally, the above-mentioned communication device may also include at least one storage module, which may include data and/or instructions. Other modules in the communication device (such as a receiving module, a sending module, a processing module, etc.) can read the data and/or instructions in the storage module to implement the corresponding method.

It should be noted that it should be understood that in the above embodiments, the sending module can be a transmitter when actually implemented, and the receiving module can be a receiver when actually implemented, or the sending module and the receiving module are implemented through a transceiver, or the sending module and the receiving module are implemented through a communication port. The processing module can be implemented in the form of software calling a processing element; it can also be implemented in the form of hardware. For example, the processing module can be at least one separately established processing element, or it can be integrated in a chip of the above-mentioned device for implementation. In addition, it can also be stored in the memory of the above-mentioned device in the form of program code, and called and executed by a processing element of the above-mentioned device. The functions of the above processing module. In addition, all or part of these modules can be integrated together, or they can be implemented independently. The processing element described here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules can be completed by an integrated logic circuit of hardware in a processor element or instructions in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as one or more application specific integrated circuits (ASICs), or one or more microprocessors (digital signal processors, DSPs), or one or more field programmable gate arrays (FPGAs). For another example, when a module above is implemented in the form of a processing element scheduling program code, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

FIG11 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. As shown in FIG11, the communication device 1100 may include: at least one processor 1101, a memory 1102, and a transceiver 1103. The processor 1101, the transceiver 1103, and the memory 1102 communicate with each other through an internal connection path, the memory 1102 is used to store instructions, and the processor 1101 is used to execute the instructions stored in the memory 1102 to control the transceiver 1103 to send channels/signals and/or receive channels/signals.

The communication device may be, for example, the aforementioned terminal device, or the aforementioned wireless access network device.

It should be understood that the communication device may correspond to the terminal device in the above method embodiment, or may correspond to the wireless access network device in the above method embodiment. And it may be used to execute the various steps and/or processes executed by the terminal device or the wireless access network device in the above method embodiment. Optionally, the memory 1102 may include a read-only memory and a random access memory, and provide instructions and data to the processor 1101. A part of the memory 1102 may also include a non-volatile random access memory. The memory 1102 may be a separate device or may be integrated in the processor 1101. The processor 1101 may be used to execute instructions stored in the memory 1102, and when the processor 1101 executes instructions stored in the memory, the processor 1101 is used to execute the various steps and/or processes of the above method embodiment.

The transceiver 1103 may include a transmitter and a receiver. The transceiver 1103 may further include an antenna, and the number of antennas may be one or more. The processor 1101 and the memory 1102 may communicate with the transceiver 1103. It is a device integrated on different chips. For example, the processor 1101 and the memory 1102 can be integrated in the baseband chip, and the transceiver 1103 can be integrated in the radio frequency chip. The processor 1101 and the memory 1102 and the transceiver 1103 can also be devices integrated on the same chip. This application does not limit this.

Optionally, the communication device is a component configured in a terminal device or a wireless access network device, such as a chip, a chip system, etc.

The transceiver 1103 may also be a communication interface, such as an input/output interface, a circuit, etc. The transceiver 1103, the processor 1101 and the memory 1102 may be integrated into the same chip, such as a baseband chip.

It should be understood that the above-mentioned communication device can be one or more chips. For example, the communication device can be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a central processor unit (CPU), a network processor (NP), a digital signal processor (DSP), a microcontroller unit (MCU), a programmable logic device (PLD) or other integrated chips.

In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software. The steps of the method disclosed in conjunction with the embodiment of the present application can be directly embodied as a hardware processor for execution, or a combination of hardware and software modules in a processor for execution. The software module can be located in a storage medium mature in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the above method in conjunction with its hardware. To avoid repetition, it is not described in detail here.

It should be noted that the processor in the embodiment of the present application can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by an integrated logic circuit of hardware in the processor or an instruction in the form of software. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor can be combined and performed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), Double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM). It should be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

The present application also provides a chip having a computer program stored thereon. When the computer program is executed by the chip, the method in the above embodiment is implemented.

The present application also provides a computer-readable storage medium, which may include: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes. Specifically, the computer-readable storage medium stores program instructions, and the program instructions are used for the methods in the above embodiments.

The present application also provides a program product, which includes an execution instruction, which is stored in a readable storage medium. At least one processor of a communication device can read the execution instruction from the readable storage medium, and at least one processor executes the execution instruction so that the communication device implements the communication method provided by the various embodiments described above.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

A communication method, characterized in that the method comprises:

The first radio access network device interacts with the second radio access network device to configure cross-link interference CLI measurement resources;

The first radio access network device measures the CLI between the first radio access network device and the second radio access network device according to the CLI measurement resource configuration.
The method according to claim 1, wherein the CLI measurement resource configuration includes at least one of the following information:

Subcarrier spacing, cyclic prefix format, CLI measurement resource identifier, frequency domain position of CLI measurement resource, time domain position of CLI measurement resource, identifier of channel state information reference signal CSI-RS associated with CLI measurement resource, identifier of synchronization signal block SSB associated with CLI measurement resource, identifier of demodulation reference signal DMRS associated with CLI measurement resource.
The method according to claim 1 or 2, characterized in that the method further comprises:

The first wireless access network device sends first indication information to a first terminal device within the cell coverage of the first wireless access network device according to the CLI measurement resource configuration, wherein the first indication information is used to instruct the first terminal device to perform uplink transmission punching on the first target resource; the first target resource includes: uplink transmission resources of the first terminal device overlapping with the CLI measurement resources indicated by the CLI measurement resource configuration.
The method according to claim 3, characterized in that:

The first indication information includes first frequency domain resource sub-indication information and first time domain resource sub-indication information, the first frequency domain resource sub-indication information is used to indicate at least one RB included in the first target resource in the frequency domain, and the first time domain resource sub-indication information is used to indicate at least one time domain symbol included in the first target resource in the time domain; the time domain symbol includes a sub-band full-duplex symbol;

Alternatively, the first indication information includes: an identifier of an uplink subband and/or a guard band corresponding to the first target resource.
The method according to claim 3, characterized in that the CLI measurement resource configuration comprises: configuration information of a CLI reference signal RS, and a CLI_RS has a mapping relationship with the CLI measurement resource in at least one CLI measurement period;

The first indication information includes: an identifier of the CLI_RS.
The method according to claim 3 is characterized in that the first target resource is associated with a target subband, and the target subband includes: an uplink subband and/or a guard band;

The first indication information includes: second time domain resource sub-indication information, where the second time domain resource sub-indication information is used to indicate a time domain offset and/or a time domain length of at least one resource element included in the first target resource on the target subband;

Alternatively, the first bitmap corresponding to the target subband; wherein, at least some bits in the first bitmap are associated with resource elements included in the first target resource, and are used to indicate that the resource elements included in the first target resource are punctured for uplink transmission.
The method according to claim 3, characterized in that the first target resource has an association relationship with the target frequency domain resource;

The first indication information includes: third time domain resource sub-indication information, where the third time domain resource sub-indication information is used to indicate a time domain offset and/or a time domain length of at least one resource element included in the first target resource;

Alternatively, a second bitmap corresponding to the target frequency domain resources; wherein, at least some bits in the second bitmap are associated with resource elements included in the first target resources, and are used to indicate that the resource elements included in the first target resources are punctured for uplink transmission.
The method according to claim 1 or 2, characterized in that the method further comprises:

The first wireless access network device sends second indication information to a second terminal device within the cell coverage of the first wireless access network device according to the CLI measurement resource configuration, wherein the second indication information is used to instruct the second terminal device to perform CLI measurement between terminal devices on a second target resource; the second target resource includes: an uplink transmission resource of the second terminal device that overlaps with the CLI measurement resource indicated by the CLI measurement resource configuration.
The method according to claim 8, characterized in that the second indication information includes: an identifier of a receiving beam used when the first radio access network device CLI is measured;

And/or, the second terminal device identifies the first transmitting beam used for CLI measurement on the second target resource, and the first transmitting beam is the transmitting beam with the smallest reference signal received power RSRP between the receiving beam and the second terminal device among all transmitting beams of the second terminal device.
The method according to claim 8 or 9, characterized in that the method further comprises:

The first wireless access network device sends third indication information to a third terminal device within the cell coverage of the first wireless access network device, wherein the third indication information is used to instruct the third terminal device to perform CLI measurement on the second target resource; the downlink transmission resources of the third terminal device overlap with the second target resource.
The method according to claim 1 or 2, characterized in that the CLI measurement resource configuration includes a first demodulation reference signal DMRS used for CLI measurement, and a CLI measurement resource; the method further comprises:

The first wireless access network device sends fourth indication information to a fourth terminal device within the cell coverage of the first wireless access network device based on the first DMRS, wherein the fourth indication information is used to indicate the second DMRS used by the fourth terminal device for uplink transmission on a third target resource, wherein the second DMRS is orthogonal to the first DMRS, and the third target resource includes: resources whose uplink transmission resources of the fourth terminal device overlap with the CLI measurement resources.
The method according to claim 11, characterized in that, the first radio access network device measures the CLI between the first radio access network device and the second radio access network device according to the CLI measurement resource configuration, comprising:

The first radio access network device measures the CLI between the first radio access network device and the second radio access network device on the CLI measurement resource, and receives the uplink signal of the fourth terminal device on the third target resource.
A communication method, characterized in that the method comprises:

The second radio access network device interacts with the first radio access network device to configure cross-link interference CLI measurement resources;

The second radio access network device performs CLI measurement with the first radio access network device according to the CLI measurement resource configuration, so that the first radio access network device obtains the CLI between the first radio access network device and the second radio access network device.
The method according to claim 13, wherein the CLI measurement resource configuration includes at least one of the following information:

Subcarrier spacing, cyclic prefix format, CLI measurement resource identifier, frequency domain position of CLI measurement resource, time domain position of CLI measurement resource, identifier of channel state information reference signal CSI-RS associated with CLI measurement resource, identifier of synchronization signal block SSB associated with CLI measurement resource, identifier of demodulation reference signal DMRS associated with CLI measurement resource.
A communication method, characterized in that the method comprises:

The first terminal device receives first indication information from the first radio access network device, where the first indication information is used to instruct the first terminal device to perform uplink transmission puncturing on a first target resource; the first target resource includes: a resource where the uplink transmission resource of the first terminal device overlaps with a CLI measurement resource, where the CLI measurement resource is indicated by a cross-link interference CLI measurement resource configuration for interaction between the first radio access network device and the second radio access network device;

The first terminal device determines, based on the first indication information, that the first target resource is not used for uplink transmission to the first wireless access network device.
The method according to claim 15, characterized in that:

The first indication information includes first frequency domain resource sub-indication information and first time domain resource sub-indication information, the first frequency domain resource sub-indication information is used to indicate at least one RB included in the first target resource in the frequency domain, and the first time domain resource sub-indication information is used to indicate at least one time domain symbol included in the first target resource in the time domain; the time domain symbol includes a sub-band full-duplex symbol;

Alternatively, the first indication information includes: an identifier of an uplink subband and/or a guard band corresponding to the first target resource.
The method according to claim 15, characterized in that the CLI measurement resource configuration comprises: configuration information of a CLI reference signal RS, and a CLI_RS has a mapping relationship with the CLI measurement resource in at least one CLI measurement period;

The first indication information includes: an identifier of the CLI_RS.
The method according to claim 15, characterized in that the first target resource has an association relationship with a target subband, and the target subband includes: an uplink subband and/or a guard band;

The first indication information includes: second time domain resource sub-indication information, where the second time domain resource sub-indication information is used to indicate a time domain offset and/or a time domain length of at least one resource element included in the first target resource on the target subband;

Alternatively, the first bitmap corresponding to the target subband; wherein, at least some bits in the first bitmap are associated with resource elements included in the first target resource, and are used to indicate that the resource elements included in the first target resource are punctured for uplink transmission.
The method according to claim 15, characterized in that the first target resource has an association relationship with the target frequency domain resource;

The first indication information includes: third time domain resource sub-indication information, where the third time domain resource sub-indication information is used to indicate a time domain offset and/or a time domain length of at least one resource element included in the first target resource;

Alternatively, a second bitmap corresponding to the target frequency domain resource; wherein at least some bits in the second bitmap are associated with resource elements included in the first target resource, and are used to indicate the resource elements included in the first target resource. The element performs puncturing for uplink transmission.
A communication method, characterized in that the method comprises:

The second terminal device receives second indication information from the first radio access network device, where the second indication information is used to instruct the second terminal device to perform CLI measurement on a second target resource; the second target resource includes: the second target resource includes: an uplink transmission resource of the second terminal device overlapping with a CLI measurement resource indicated by the CLI measurement resource configuration, where the CLI measurement resource is indicated by a cross-link interference CLI measurement resource configuration for interaction between the first radio access network device and the second radio access network device;

The second terminal device performs CLI measurement between terminal devices on the second target resource according to the second indication information.
The method according to claim 20, characterized in that the second indication information includes: an identifier of a receiving beam used when the first radio access network device CLI is measured;

And/or, the second terminal device identifies the first transmitting beam used for CLI measurement on the target resource; the first transmitting beam is the transmitting beam with the smallest reference signal received power RSRP between the receiving beam and the second terminal device among all transmitting beams of the second terminal device.
The method according to claim 20 or 21, characterized in that the second indication information includes: an identifier of a receiving beam used when the first radio access network device CLI is measured;

The second terminal device performs CLI measurement between terminal devices on the second target resource according to the second indication information, including:

The second terminal device determines the first transmitting beam according to the identifier of the receiving beam;

The second terminal device uses the first transmission beam to send an interference signal for CLI measurement between terminal devices on the second target resource.
A communication device, characterized in that the device is applied to a first wireless access network device, comprising:

A transceiver module, configured to interact with a second radio access network device for cross-link interference CLI measurement resource configuration;

The processing module is used to measure the CLI between the first radio access network device and the second radio access network device according to the CLI measurement resource configuration.
A communication device, characterized in that the device is applied to a second radio access network device, comprising:

A transceiver module, configured to interact with a first radio access network device for cross-link interference CLI measurement resource configuration;

The processing module is used to perform CLI measurement with the first radio access network device according to the CLI measurement resource configuration, so that the first radio access network device obtains the CLI between the first radio access network device and the second radio access network device.
A communication device, characterized in that the device is applied to a first terminal device, comprising:

A receiving module, configured to receive first indication information from a first radio access network device, wherein the first indication information is used to instruct the first terminal device to perform uplink transmission puncturing on a first target resource; the first target resource includes: a resource where an uplink transmission resource of the first terminal device overlaps with a CLI measurement resource, and the CLI measurement resource is indicated by a cross-link interference CLI measurement resource configuration for interaction between the first radio access network device and a second radio access network device;

A processing module is used to determine, according to the first indication information, that the first target resource is not used for uplink transmission to the first radio access network device.
A communication device, characterized in that the device is applied to a second terminal device, comprising:

A transceiver module, configured to receive second indication information from a first radio access network device, wherein the second indication information is used to instruct the second terminal device to perform CLI measurement on a second target resource; the second target resource comprises: the second target resource comprises: an uplink transmission resource of the second terminal device overlapping with a CLI measurement resource indicated by the CLI measurement resource configuration, wherein the CLI measurement resource is indicated by a cross-link interference CLI measurement resource configuration for interaction between the first radio access network device and the second radio access network device;

A processing module is used to perform CLI measurement between terminal devices on the second target resource according to the second indication information.
A communication device, characterized in that the device comprises: a processor, a transceiver, and a memory; the processor is communicatively connected with the transceiver and the memory respectively;

The memory stores computer-executable instructions;

The transceiver communicates and interacts with an external device;

The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1 to 22.
A chip, characterized in that a computer program is stored on the chip, and when the computer program is executed by the chip, the method according to any one of claims 1 to 22 is implemented.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, they are used to implement the communication method according to any one of claims 1 to 22.