Crosslink interference measurement method, device, base station and controller

Abstract

The present application provides a crosslink interference measurement method, an apparatus, a base station, and a controller, which relate to the field of communications technology. The CLI measurement method includes: an interfering station obtains first configuration information of a measurement signal, the first configuration information indicating a first location of the measurement signal in time domain resources and frequency domain resources; transmitting the measurement signal to an interfered station at the first location based on the first configuration information; and the interfered station receiving the measurement signal transmitted from the interfering station and measuring a CLI value between the interfering station and the interfered station based on the measurement signal. Based on the CLI value from the interfering station to the interfered station, a corresponding CLI suppression technique is obtained, and a scheduling of time-frequency resources between base stations is adjusted to suppress CLI in an F-TDD communication system, thereby reducing the impact of CLI on the performance of a 5G communication system.

Description

[Technical Field]

[0001] The present application relates to the field of communications technology, and in particular to a crosslink interference measurement method, apparatus, base station and controller. [Background technology]

[0002] In 5G communication systems, cross-link interference (CLI) exists between base stations. CLI affects reception at base stations and user equipment (UE), reducing the received signal-to-noise ratio and increasing the bit error rate, which may ultimately affect the performance of the entire 5G communication system. Therefore, it is necessary to adopt appropriate technologies to suppress CLI in Flexible Time Division Duplex (F-TDD) communication systems and improve the performance of F-TDD communication systems. Summary of the Invention

[0003] An object of the embodiments of the present application is to provide a crosslink interference measurement method, apparatus, base station, and controller for suppressing CLI in an F-TDD communication system and improving the performance of the F-TDD communication system.

[0004] As a first aspect, an embodiment of the present application provides a crosslink interference measurement method applied to an interfered station, the crosslink interference measurement method comprising: receiving a measurement signal transmitted from an interfering station; and measuring a CLI value between the interfering station and the interfered station based on the measurement signal.

[0005] In a second aspect, an embodiment of the present application provides a crosslink interference measurement method applied to an interfering station, the crosslink interference measurement method comprising: obtaining first configuration information of a measurement signal, the first configuration information indicating a first position of the measurement signal in time domain resources and frequency domain resources; transmitting a measurement signal to the interfered station at the first location.

[0006] In a third aspect, an embodiment of the present application provides a cross-link interference measurement method applied to a controller, the cross-link interference measurement method comprising: Obtaining first configuration information of an interfering station, the first configuration information indicating a first position of a measurement signal in a time domain resource and a frequency domain resource, the measurement signal being for measuring a CLI value; and transmitting first configuration information of the interfering station to the interfered station.

[0007] In a fourth aspect, an embodiment of the present application provides a crosslink interference measurement device applied to an interfered station, the crosslink interference measurement device comprising: a first receiving means for receiving a measurement signal transmitted from an interfering station; and a measurement means for measuring a CLI value between the interfering station and the interfered station based on the measurement signal.

[0008] In a fifth aspect, an embodiment of the present application provides a crosslink interference measurement method applied to an interfering station, the crosslink interference measurement device comprising: obtaining means for obtaining first configuration information of a measurement signal, the first configuration information indicating a first position of the measurement signal in time domain resources and frequency domain resources; and first transmitting means for transmitting a measurement signal to the interfered station at the first location.

[0009] In a sixth aspect, an embodiment of the present application provides a cross-link interference measurement device applied to a controller, the cross-link interference measurement device comprising: an acquiring means for acquiring first configuration information of an interfering station, the first configuration information indicating a first position of a measurement signal in a time domain resource and a frequency domain resource, the measurement signal being for measuring a CLI value; and a first transmitting means for transmitting first configuration information of the interfering station to the interfered station.

[0010] In a seventh aspect, an embodiment of the present application provides a base station including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory are in communication with each other via the communication bus; the memory is for storing a computer program; The processor is configured to execute the program stored in the memory to implement the steps of the method according to the first or second aspect.

[0011] In an eighth aspect, an embodiment of the present application provides a controller including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory are in communication with each other via the communication bus; the memory is for storing a computer program; The processor is configured to, when executing a program stored in the memory, perform the steps of the method according to the third aspect.

[0012] In a ninth aspect, embodiments of the present application provide a computer-readable storage medium having stored thereon a computer program, the computer program being for implementing the steps of the method according to the first, second or third aspect when executed by a processor.

[0013] In the technical solution provided by the embodiments of the present application, an interfering station transmits a measurement signal to an interfered station, and the interfered station measures the measurement signal transmitted from the interfering station to estimate a CLI value from the interfering station to the interfered station. Based on the CLI value from the interfering station to the interfered station, a corresponding CLI suppression technique can be obtained, and the scheduling of time-frequency resources between base stations can be adjusted to suppress CLI in the F-TDD communication system, thereby reducing the impact of CLI on the performance of the 5G communication system. [Brief explanation of the drawings]

[0014] The drawings described herein are provided for further understanding of the present application and constitute a part of the present application. The exemplary embodiments and the description thereof are for the purpose of explaining the present application and are not to be construed as an undue limitation on the present application. [Figure 1] FIG. 1 is a schematic diagram of different base stations in a two-tier network structure. [Figure 2] FIG. 2 is a first flowchart of a method for measuring CLI provided by an embodiment of the present application. [Figure 3] FIG. 3 is a second flowchart of the CLI measurement method provided by an embodiment of the present application. [Figure 4a] FIG. 4a is a schematic diagram of different base stations in a two-layer network structure provided by an embodiment of the present application. [Figure 4b] FIG. 4b is a schematic diagram of a measurement signal configuration based on the two-layer network structure shown in FIG. 4a. [Figure 5a] FIG. 5a is a first schematic diagram of a pattern of a measurement signal provided by an embodiment of the present application. [Figure 5b] FIG. 5b is a second schematic diagram of a measurement signal pattern provided by an embodiment of the present application. [Figure 6] FIG. 6 is a schematic diagram of a time domain resource configuration of a CSI-IM signal provided by an embodiment of the present application. [Figure 7a] FIG. 7a is a schematic diagram of one of the three combinations of CSI-RS provided by an embodiment of the present application. [Figure 7b] FIG. 7b is a schematic diagram of one of the three combinations of CSI-RS provided by an embodiment of the present application. [Figure 7c] FIG. 7c is a schematic diagram of one of the three combinations of CSI-RS provided by an embodiment of the present application. [Figure 8a] FIG. 8a is a schematic diagram of one of two measurement signal configurations provided by embodiments of the present application. [Figure 8b] FIG. 8b is a schematic diagram of one of two measurement signal configurations provided by embodiments of the present application. [Figure 9] FIG. 9 is a first schematic diagram of UL unavailable resources provided by an embodiment of the present application. [Figure 10] FIG. 10 is a second schematic diagram of UL unavailable resources provided by an embodiment of the present application. [Figure 11] FIG. 11 is a third flowchart of the CLI measurement method provided by an embodiment of the present application. [Figure 12] FIG. 12 is a fourth flowchart of the CLI measurement method provided by the embodiment of the present application. [Figure 13] FIG. 13 is a schematic diagram of a first structure of a CLI measurement device provided by an embodiment of the present application. [Figure 14] FIG. 14 is a schematic diagram of a second configuration of a CLI measurement device provided by an embodiment of the present application. [Figure 15] FIG. 15 is a schematic diagram of a third configuration of a CLI measurement device provided by an embodiment of the present application. [Figure 16] FIG. 16 is a structural schematic diagram of a base station provided by an embodiment of the present application. [Figure 17] FIG. 17 is a structural schematic diagram of a controller provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0015] In order to clarify the purpose, technical solution and advantages of the present application, the present application will be described in more detail below by way of examples with reference to the drawings. Of course, the described embodiments are only a part of the embodiments of the present application, and are not all of the embodiments. Based on the embodiments of the present application, all other embodiments that can be obtained by a person skilled in the art without requiring creative work fall within the scope of protection of the present application.

[0016] The following explains the terms used in the examples of this application.

[0017] A macro base station is a large base station that needs to be installed on a tower. It usually has three sectors, achieves omnidirectional coverage, has high power, a wide coverage area, and can connect a large number of users.

[0018] A micro base station is a small base station that is installed inside a building or in a densely populated area. Such a base station has a small volume, low power consumption, a narrow coverage area, and can connect to a small number of users.

[0019] A victim station is a base station that is interfered with in a flexible time division duplex (F-TDD) communication system. In an embodiment of the present application, the victim station may be a next generation node base station (gNB) or an evolved node base station (eNB), etc.

[0020] An aggressor is a base station that interferes with an interfered station in a flexible time division duplex (F-TDD) communication system. In an embodiment of the present application, the aggressor may be a gNB, an eNB, or the like.

[0021] Currently, Time Division Duplex (TDD) communication systems operate in Half-Duplex (HD) mode. In HD mode, the frame structure is strictly divided into downlink (DL) slots, uplink (UL) slots, and special (S) slots. Here, S slots can be used for DL, UL, or guard periods (GP). To improve network throughput, 5G commercial networks typically configure many DL slots, resulting in fewer UL slots, which limits UL transmission speeds and increases UL transmission delays, making it unfavorable for Ultra-Reliability Low Latency Communication (URLLC) services such as automatic control and control-to-control.

[0022] Flexible Time Division Duplex (F-TDD) communication systems are a feasible solution to these challenges. F-TDD, also known as dynamic TDD, allows for flexible allocation of uplink and downlink slots according to the downlink service situation, thereby meeting the needs of dynamically changing services and improving the performance of 5G communication systems. There are two typical network construction scenarios for F-TDD communication systems. One is a single-tier network structure, where all base stations in the network are the same type, such as macro or micro base stations. The other is a two-tier network structure, where the first tier in the network is a macro base station, typically deployed outdoors, and the second tier is a micro base station, typically deployed indoors.

[0023] In a single-tier network, different base stations all use a flexible frame structure. In a two-tier network, a macro base station can be configured with a DL-based frame structure, such as a five-slot frame structure DDDSU, where D indicates a DL slot, S indicates a special slot, and U indicates a UL slot. A second-tier micro base station can be configured with a flexible frame structure, such as a five-slot frame structure FFFFF, where F indicates a flexible slot. A second-tier micro base station can be configured with a UL-based frame structure, such as a five-slot frame structure DSUUU, where D indicates a DL slot, S indicates a special slot, and U indicates a UL slot.

[0024] Figure 1 shows a schematic diagram of different base stations in a two-tier network structure. Here, the base stations include gNB0 and gNB1. gNB0 is a macro base station. The dashed circle indicates the coverage area of ​​gNB0. gNB1 is a micro base station. The solid circle indicates the coverage area of ​​gNB1. In slots #0 to #4, the frame structure of gNB0 is DDDSU, and the frame structure of gNB1 is DSUUU. As shown in Figure 1, in slot #2, the transmission directions of the two base stations gNB0 and gNB1 are different. gNB0 transmits DL data to UE0, and gNB1 receives UL data from UE1. In this case, gNB0's DL transmission interferes with gNB1's UL reception, i.e., gNB-gNB CLI, and UE1's UL transmission interferes with UE0's DL reception, i.e., UE-UE CLI.

[0025] These two types of CLI affect the reception of base stations and UEs, reducing the received signal-to-noise ratio and increasing the bit error rate, ultimately affecting the performance of the entire 5G communication system. Therefore, it is necessary to adopt appropriate technologies to mitigate CLI in F-TDD communication systems and improve their performance. Coordinated scheduling between gNBs is a feasible technology for mitigating CLI in F-TDD communication systems. The premise of coordinated scheduling is that various system configuration information, including frame structure, bandwidth configuration, channel and signal configuration, and measurement reports of mutual interference between base stations, must be exchanged between gNBs.

[0026] To achieve coordinated scheduling between base stations, suppress CLI in the F-TDD communication system, and reduce the impact of CLI on the performance of the 5G communication system, an embodiment of the present application provides a CLI measurement method, in which an interfering station transmits a measurement signal to an interfered station, and the interfered station measures the measurement signal transmitted from the interfering station to estimate a CLI value from the interfering station to the interfered station. Based on the CLI value from the interfering station to the interfered station, a corresponding CLI suppression technique can be obtained to adjust the scheduling of time-frequency resources between base stations, suppress CLI in the F-TDD communication system, and reduce the impact of CLI on the performance of the 5G communication system.

[0027] The following provides a detailed description of the CLI measurement method provided by the present application through specific examples.

[0028] Referring to FIG. 2, FIG. 2 is a first flowchart of a CLI measurement method provided by an embodiment of the present application. The CLI measurement method is applied to an interfered station. The interfered station may correspond to one or more interfering stations. That is, one or more interfering stations cause interference to the interfered station. The CLI measurement method includes the following steps:

[0029] In step S21, a measurement signal transmitted from an interfering station is received.

[0030] In step S22, the CLI value between the interfering station and the interfered station is measured based on the measurement signal.

[0031] In the CLI measurement method provided in the embodiments of the present application, an interfering station transmits a measurement signal to an interfered station, and the interfered station estimates the CLI value from the interfering station to the interfered station by measuring the measurement signal transmitted from the interfering station. Based on the CLI value from the interfering station to the interfered station, a corresponding CLI suppression technique can be obtained, and the scheduling of time-frequency resources between base stations can be adjusted to suppress the CLI in the F-TDD communication system, thereby reducing the impact of the CLI on the performance of the 5G communication system.

[0032] In the above step S21, the measurement signal may be a specific signal transmitted from the interfering station, or may be a non-specific signal transmitted from the interfering station, and the measurement signal may be a zero power signal transmitted from the interfering station, or may be a non-zero power signal transmitted from the interfering station.

[0033] For example, the measurement signal may be a synchronization signal block (SSB), where the SSB is a specific signal transmitted from an interfering station and is a non-zero power signal. The measurement signal may also be a channel state information-interference measurement (CSI-IM) signal or a channel state information-reference signal (CSI-RS), where the CSI-IM signal and the CSI-RS are non-specific signals transmitted from an interfering station, the CSI-IM signal is a zero power signal, and the CSI-RS is a non-zero power signal.

[0034] In the case of SSB, SSB is a synchronization signal block that each base station must transmit to achieve synchronization between the base station and the UE. Because SSB is universal and transmitted periodically, it can be used for CLI measurement between base stations. The interfering station transmits SSB according to its unique SSB configuration, and the interfered station measures the CLI value by SSB on the corresponding resource, such as Synchronization Signal-Reference Signal Received Power (SS-RSRP).

[0035] In the present embodiment, the maximum number of SSBs that can be configured by a single base station is 64, but can be expanded as needed.

[0036] The CSI-IM signal was introduced in the 3GPP (registered trademark) Rel. 15 standard and is used for UE interference measurement. The CSI-IM signal is regarded as a zero-power CSI-RS, i.e., ZP-CSI-RS. In the CSI-IM resource, the base station does not transmit data. In this way, the UE can measure interference to the UE from other base stations or other external signal sources in this resource. In the embodiment of the present application, the CSI-IM signal is further extended to measure CLI between base stations in an F-TDD communication system. Unlike the CSI-IM signal for UE interference measurement, the CSI-IM signal in the embodiment of the present application needs to be specially designed for CLI measurement between base stations. In the embodiment of the present application, the CSI-IM resource refers to the time domain resource and frequency domain resource occupied by the CSI-IM signal.

[0037] In an F-TDD communication system, user-level CSI-RS is used for time-frequency tracking, beam management, and user CSI measurement. CSI-RS is also used for CLI measurement between base stations. Unlike CSI-IM signals, CSI-RS is configured as non-zero-power CSI-RS, i.e., NZP-CSI-RS. Thus, the principle of measurement using CSI-RS differs from CSI-IM. The interfered station obtains the CLI value of the interfering station by directly measuring the Reference Signal Received Power (RSRP) or Received Signal Strength Indicator (RSSI) of the CSI-RS in the CSI-RS resource according to the CSI-RS configuration of the different base stations. Different base stations may have different CSI-RS resource configurations, i.e., base station CSI-RS is configured with different time-frequency domain resources, thereby avoiding situations where CLI cannot be accurately measured due to CSI-RS interference between different interfering stations. In the embodiments of the present application, the CSI-RS resource refers to the time domain resource and frequency domain resource occupied by the CSI-RS.

[0038] In the embodiments of the present application, the measurement signal may be realized by, but is not limited to, other intrinsic or non-intrinsic signals.

[0039] In the present embodiment, for a full-duplex base station, there is no restriction on the location of the measurement signal. For a half-duplex base station, to measure and report CLI, the measurement signal is configured as much as possible in the downlink slot or flexible slot of the interfering station, and in this slot, the interfered station is configured in the uplink slot or flexible slot. In one example, in a single-tier network structure, that is, when both base stations are configured as flexible slots, it is impossible to determine whether to transmit or receive signals between the base stations at the current time. In this case, the measurement signal is configured in an intermediate slot in the frame structure. In a two-tier network structure, once the frame structures of the two base stations are clearly determined, a slot that meets the above conditions can be found, and the measurement signal is configured in the found slot, such as slot #2 in FIG. 1. This ensures that the interfered station can receive when the interfering station is transmitting, allowing for effective CLI measurement.

[0040] In the above step S22, the CLI value may be expressed as Reference Signal Received Power (RSRP) or as Received Signal Strength Indicator (RSSI).

[0041] After receiving the measurement signal transmitted from the interfering station, the interfered station measures the CLI value between the interfering station and the interfered station based on the measurement signal. For example, if the measurement signal is a zero-power signal, the interfered station measures the RSSI between the interfering station and the interfered station as the CLI value. If the measurement signal is a non-zero-power signal, the interfered station measures the RSRP between the interfering station and the interfered station as the CLI value.

[0042] After measuring the CLI value between the interfering station and the interfered station, the interfered station communicates with the interfering station via a controller or directly with the interfering station to complete cooperative scheduling between the interfering station and the interfered station, i.e., coordinate the scheduling of time-frequency resources between the interfered station and the interfered station. For example, the interferer suspends the downlink channel or signal transmission, reduces the transmission power of the downlink channel or signal, or notifies the interfered station to suspend UL scheduling. The specific scheduling strategy is determined according to actual needs. The downlink channel or signal may include, but is not limited to, a DL shared channel (PDSCH), SSB, DL control channel (PDCCH), CSI-RS, etc. The controller may be, but is not limited to, a base station in an F-TDD communication system, a central unit (CU) in an F-TDD communication system, or other devices in an F-TDD communication system.

[0043] In some embodiments, as shown in FIG. 3, the embodiments of the present application further provide a CLI measurement method applied to an interfered station, and the CLI measurement method may include the following steps:

[0044] In step S31, a measurement signal transmitted from an interfering station is received, which is the same as step S21 above.

[0045] In step S32, the CLI value between the interfering station and the interfered station is measured based on the measurement signal, which is the same as step S22 above.

[0046] In step S33, send a CLI value or CLI indicator to the controller, where the CLI indicator is for indicating whether a CLI exists between the interfered station and the interfering station.

[0047] In an embodiment of the present application, a controller is added to the F-TDD communication system, which may be, but is not limited to, any base station in the F-TDD communication system, a Central Unit (CU) in the F-TDD communication system, or other devices in the F-TDD communication system, as shown in Figure 4a.

[0048] After measuring the CLI value, the interfered station transmits the CLI value or CLI indicator to the controller. The controller completes cooperative scheduling between the interfering station and the interfered station based on the CLI value or CLI indicator, i.e., adjusts the scheduling of time-frequency resources between the interfered station and the interfered station. The CLI indicator may be a first preset value or a second preset value. When the CLI indicator is the first preset value, it indicates that a CLI exists between the interfered station and the interfering station. When the CLI indicator is the second preset value, it indicates that a CLI does not exist between the interfered station and the interfered station. Here, the bit widths of the first preset value and the second preset value may be, but are not limited to, 1, 2, or 3 bits (bits). When the bit width of the first preset value and the second preset value is 1 bit, the first preset value may be 1 and the second preset value may be 0, or the first preset value may be 0 and the second preset value may be 1.

[0049] In some embodiments, after measuring the CLI value, the interfered station can determine whether the CLI value is greater than a preset CLI threshold. If the CLI value is greater than the preset CLI threshold, the interfered station determines that the interfering station has seriously affected the communication quality of the interfered station, and can transmit the CLI value to the controller or transmit a CLI indicator to the controller indicating that a CLI exists between the interfered station and the interfering station, thereby adjusting the scheduling of time-frequency resources between the interfering station and the interfered station.

[0050] On the other hand, if the CLI value is equal to or less than the preset CLI threshold, the interfered station determines that the interfering station has a small impact on the communication quality of the interfered station, and refuses to send the CLI value to the controller, or refuses to send a CLI indicator to the controller indicating that no CLI exists between the interfered station and the interfering station, thereby saving network resources and reducing the burden on the controller because the controller does not need to adjust the scheduling of time-frequency resources between the interfering station and the interfered station.

[0051] In the CLI measurement method provided by the embodiments of the present application, the controller realizes information transmission between the interfering station and the interfered station facing each other, and further realizes coordinated scheduling between the interfering station and the interfered station, thereby further suppressing CLI in the F-TDD communication system and reducing the impact of CLI on the performance of the 5G communication system.

[0052] In some embodiments, each base station in the F-TDD communication system transmits its configuration information to the controller. When measuring the CLI, the controller determines the interfering station of the interfered station and transmits the configuration information of the interfering station to the interfered station. The configuration information of the interfering station indicates the position of the measurement signal in the time and frequency domain resources, i.e., the configuration information of the interfering station is the configuration information of the measurement signal. For ease of explanation, the configuration information of the interfering station is hereinafter abbreviated as "first configuration information," and the position of the measurement signal in the time and frequency domain resources of the interfering station is hereinafter abbreviated as "first position." The interfered station receives the first configuration information transmitted from the controller. In this case, the above step S21 may include determining a second position corresponding to the first position of the interfered station in the time and frequency domain resources according to the carrier correspondence between the interfering station and the interfered station, and receiving the measurement signal at the second position. The measurement signal at the second position is the measurement signal transmitted from the interfering station for measuring the CLI.

[0053] In an embodiment of the present application, the interfered station can use the first configuration information to accurately receive the measurement signal and accurately measure the CLI value, so that the controller can accurately perform cooperative scheduling between the interfering station and the interfered station and suppress CLI in the F-TDD communication system.

[0054] To ensure that the base station performs CLI measurements, the controller may send necessary configuration information to the interfered station. Here, the necessary configuration information may include, but is not limited to, frame structure configuration information, bandwidth part (BWP) configuration information, CLI reporting configuration information, beam management information, time-frequency resource configuration information of channels and signals, etc. The channels and signals may include SSB, PDCCH, PDSCH, CSI-RS, UL control channel (Physical Uplink Control Channel (PUCCH)), UL shared channel (Physical Uplink Shared Channel (PUSCH), Physical Random Access Channel (PRACH), Sounding Reference Signal (SRS), etc.

[0055] In practical applications, the roles of the interfered station and the interferer station may be reversed. To improve the efficiency of CLI measurement, the controller sends the first configuration information and required configuration information of each base station to each base station, and completes the configuration information exchange between the base stations. The above configuration information may be exchanged via a backhaul link (e.g., an Xn interface or an F1 interface) between the base station and the controller or over-the-air technology (OTA).

[0056] In some embodiments, if the measurement signal is a specific signal of the interfering station, the controller sends first configuration information of the interfering station to the interfered station. After the interfered station receives the first configuration information, the first configuration information is immediately activated, i.e., the first configuration information becomes effective.

[0057] When the measurement signal is a non-specific signal of the interfering station, the first configuration information may be divided into multiple types of configuration information, such as periodic configuration information, semi-persistent configuration information, and aperiodic configuration information, etc. The interfered station can activate different types of first configuration information according to actual needs.

[0058] For example, if the first configuration information is periodic configuration information, the controller transmits the first configuration information of the interfering station to the interfered station, and after receiving the first configuration information, the interfered station immediately activates the first configuration information, i.e., makes the first configuration information effective.

[0059] If the first configuration information is semi-persistent configuration information, the controller transmits the first configuration information of the interfering station to the interfered station. After receiving the first configuration information, the interfered station stores the first configuration information but does not activate the first configuration information, i.e., the first configuration information is not valid for a certain period of time. After the interfered station receives the activation time transmitted from the controller, the interfered station activates the first configuration information when the activation time arrives.

[0060] If the first configuration information is non-periodic configuration information, when the interfered station detects a CLI, the controller generates corresponding first configuration information and transmits the first configuration information and an activation time to the interfered station and the interfering station. After receiving the first configuration information and the activation time transmitted from the controller, the interfered station and the interfering station activate the first configuration information at the activation time.

[0061] For example, if the interfered station detects the presence of a CLI in a certain slot (e.g., the first slot), it sends a notification message to the controller, indicating the presence of a CLI in the first slot. The controller detects whether the interfering station has first configuration information for the first slot. If the first configuration information for the first slot does not exist, the controller configures the CSI-IM resource or CSI-RS resource for the interfering station, i.e., the first configuration information, according to the interfering station's frame structure configuration information, bandwidth part (BWP) configuration information, CLI report configuration information, beam management information, channel and signal time-frequency resource configuration information, and the first slot in which interference exists, and transmits the first configuration information for the first slot and an activation time to the interfered station and the interfering station. If the first configuration information for the first slot exists, the controller transmits the activation time of the first configuration information for the first slot to the interfered station and the interfering station.

[0062] The interfered station receives an activation time of the first configuration information for the first slot transmitted from the controller, or receives the first configuration information for the first slot and the activation time transmitted from the controller, and activates the first configuration information for the first slot when the activation time is reached.

[0063] In some embodiments, the measurement signal is a non-specific signal of the interfering station, and the measurement signal is a zero-power signal. In this case, the interfered station can determine the CLI value by RSSI. The CLI measurement principle will be described below with reference to the measurement signal configuration shown in Figure 4b. In Figure 4b, the CSI-IM signal is the measurement signal, symbol #1 of slot #2 of the interfering station gNB0 is composed of the CSI-IM signal, and symbol #1 of slot #2 of the interfered station gNB1 is composed of a UL demodulation reference signal (DMRS). That is, symbol #1 of slot #2 is the first position of the measurement signal in the time domain resource and the frequency domain resource. Based on Figure 4b, the CLI measurement principle is as follows:

[0064] The signal received by gNB1 at symbol #1 of slot #2 is DMRS and other signals excluding interference signals from gNB0, such as other interference, thermal noise, etc. In this case, the total RSSI received by gNB1 is expressed by the following equation (1):

number

[0065] In equation (1), RSSI Total,1 represents the sum of RSSIs of all CSI-IM resource elements (REs) in a CSI-IM symbol. The CSI-IM symbol is a symbol that transmits a CSI-IM signal, i.e., symbol #1 of slot #2. RSSI Total,1 is measured by gNB1. CSI-IM RE is the RE that carries the CSI-IM signal. N DMRS represents the number of REs occupied in a DMRS symbol. The DMRS symbol is a symbol that transmits UL DMRS, i.e., symbol #1 of slot #2. DMRS represents the linear average of the RSRPs of all DMRS REs. DMRS REs are REs that transmit UL DMRS. DMRS is estimated by UL DMRS. RSSI Others represents the sum of the RSSIs of other signals excluding the interfering signal of gNB0 in the DMRS symbol.

[0066] In symbols other than symbol #1 in slot #2, the signals received by gNB1 include PUSCH, an interference signal due to the DL signal of gNB0, and signals other than the interference signal of gNB0. In this case, the total RSSI received by gNB1 is expressed by the following equation (2).

number

[0067] In equation (2), RSSI Totalrepresents the sum of RSSIs of all REs in a single PUSCH symbol. The PUSCH symbol is a symbol that transmits a PUSCH, i.e., a symbol other than symbol #1 in slot #2. RSSI Total is measured by gNB1. N PUSCH represents the number of REs occupied in a PUSCH symbol. PUSCH represents the linear average value of RSRP over all PUSCH REs. PUSCH REs are REs that carry PUSCH. RSRP PUSCH is determined by the RSRP according to the relationship between the transmission power of PUSCH and UL DMRS. DMRS That is, RSRP PUSCH RSRP PUSCH =α*RSRP DMRS where α = 1, 1 / 2, 1 / 3, and α represents the ratio of the Energy Per Resource Element (EPRE) of PUSCH to the EPRE of UL DMRS. Others represents the sum of the RSSIs of other signals excluding the interfering signal of gNB0. CLI,gNB0 represents the RSSI of the interference generated by the DL signal of gNB0. CLI,gNB0 is calculated using equations (1) and (2) and is expressed as the following equation (3).

number

[0068] Generally, the transmission power of the DMRS symbol and the PUSCH symbol is the same. DMRS -α*N PUSCH = 0, so RSSI CLI,gNB0 Equation (3) can be simplified to the following equation (4).

number

[0069] Based on the above CLI measurement principle, the above step S22 may be as follows:

[0070] When there are multiple interfering stations and the first positions of the measurement signals of the interfering stations in the time domain resource and the frequency domain resource are different, the CLI values ​​between the interfering stations and the interfered station are measured based on the measurement signals transmitted from the interfering stations. When there are multiple interfering stations and the first positions of the measurement signals of some of the interfering stations in the time domain resource and the frequency domain resource are the same, the CLI values ​​between each interfering station and the interfered station having different first positions and the total CLI value between some of the interfering stations and the interfered station having the same first position are measured based on the measurement signals transmitted from each interfering station. If there are multiple interfering stations and the first positions of the measurement signals of the multiple interfering stations in the time domain resource and the frequency domain resource are the same, the total CLI value between the multiple interfering stations and the interfered station is measured based on the measurement signals transmitted from each interfering station. If there is one interfering station, the CLI value between the interfering station and the interfered station is measured based on a measurement signal transmitted from the interfering station.

[0071] In the case of multiple interfering stations, i.e., in a multi-to-one configuration, if the locations of the CSI-IM resources of each interfering station are different, the interfered station can easily extend the CLI measurement principle of a single interfering station to multiple interfering stations. If the UL DMRS is accurately received and its RSRP is estimated, the interfered station can obtain the CLI value of each interfering station, i.e., the above RSSI CLI,gNB0 However, if multiple interfering stations have the same CSI-IM configuration, the interfered station can only estimate the sum of the received CLI values.

[0072] In an actual F-TDD communication system, there are cases where one interfering station interferes with multiple interfered stations, i.e., one-to-multiple, and cases where multiple interfering stations interfere with multiple interfered stations, i.e., multi-to-multiple. If configuration information is exchanged between different base stations, interference measurement between different base stations can be realized, and the measurement principle is the same as the above method.

[0073] In an embodiment of the present application, for a measurement signal that is a zero-power, non-specific signal, the pattern of the measurement signal may include a first pattern (pattern 0) and a second pattern (pattern 1). In the first pattern, the measurement signal occupies two consecutive symbols in the time domain resource and two consecutive resource elements (REs) in each physical resource block of the frequency domain resource. As shown in the schematic diagram of pattern 0 in Figure 5a, the filled grid is the REs of the measurement signal. In the second pattern, the measurement signal occupies one symbol in the time domain resource and four consecutive resource elements in each physical resource block of the frequency domain resource. As shown in the schematic diagram of pattern 1 in Figure 5b, the filled grid is the REs of the measurement signal.

[0074] In the case of a measurement signal that is zero power and a non-specific signal, the configuration mode in a certain slot may include the following two modes.

[0075] In Mode 1, the symbols occupied by the measurement signal at the interfering station are the same as the symbols occupied by the UL DMRS configured at the interfered station, i.e., the symbols shown in the first position at the interfered station are the same as the symbols occupied by the UL DMRS.

[0076] In Mode 1, the measurement signal is configured at the location of the UL DMRS and coincides with the location of the UL DMRS, and no power is transmitted on the measurement signal resource, which can improve the detection performance of the DMRS.

[0077] For single-symbol DMRS, the measurement signal is pattern 1 as shown in Figure 5b. For dual-symbol DMRS, the measurement signal is pattern 0 as shown in Figure 5b.

[0078] In Mode 1, there are situations where the position of the measurement signal coincides with the position of other downlink data in the interfering station. For example, the position of the measurement signal coincides with the position of the DL DMRS or the PDCCH of the interfering station. If the position of the UL DMRS of the interfered station coincides with the position of the DL DMRS of the interfering station, the position of the measurement signal also coincides with the position of the DL DMRS of the interfering station. Without DL DMRS, the interfering station cannot successfully transmit DL data. If the position of the UL DMRS of the interfered station coincides with the position of the PDCCH of the interfering station, configuring the measurement signal at that position in the DL slot of the interfering station will result in conflict with the PDCCH.

[0079] To avoid the above problem, in an embodiment of the present application, other downlink data occupying the symbol indicated by the first position in the interfering station uses another symbol to avoid conflict with CSI-IM. For example, the interfering station moves the position of the DL DMRS back by one symbol. At this time, the PDSCH should not perform rate matching on the measurement signal. Figure 6 shows a schematic diagram of the time-domain resource configuration of the CSI-IM signal. Here, the DMRS is a single-symbol DMRS. In Figure 6, the position of the CSI-IM signal coincides with the position of the UL DMRS, both of which are symbol #2. The original position of the DL DMRS is symbol #2. To avoid conflict with the CSI-IM signal, the position of the DL DMRS is moved back by one symbol, i.e., the DL DMRS is configured at symbol #3. Also, for example, if the UL DMRS is at symbol #0 and the corresponding CSI-IM signal is configured at symbol #0, the PDCCH no longer uses symbol #0 and may use symbol #1 or symbol #2.

[0080] To avoid the above problem, in an embodiment of the present application, the interfered station may configure the UL DMRS position to be in a different symbol from that of the DL DMRS. As a result, the symbols occupied by the measurement signal in the interfering station are different from those of the DL DMRS. For example, to avoid conflict with the DL DMRS, the interfered station may move the UL DMRS position backward by one symbol from its original position.

[0081] In this embodiment, the measurement signal and the UL DMRS are configured in the same symbol, and no other data is transmitted on the symbol occupied by the CSI-IM signal. When there are multiple interfering stations, the interfered station can only estimate the total RSSI value of the CLIs between all the interfering stations and the interfered station, and cannot accurately measure the CLI value of a particular interfering station. When there is only one interfering station, the measured CLI RSSI value is the CLI value from the interfered station to the interfered station.

[0082] In Mode 2, the symbols occupied by the measurement signal at the interfering station are different from the symbols occupied by the UL DMRS configured at the interfered station, i.e., the symbols indicated in the first position at the interfered station are different from the symbols occupied by the UL DMRS.

[0083] In Mode 2, the measurement signal can be configured at any symbol in the slot. To simplify the configuration, the symbol indicated in the first position at the interfering station is different from the symbols occupied by other downlink data. For example, the measurement signal configuration avoids the positions of PDCCH, DL DMRS, and other channels and signals. In this case, the measurement signals of different interfering stations can be configured on the same time-frequency resource or on different time-frequency resources. If the measurement signals of different interfering stations are configured at the same location, the interfered station can only estimate the total RSSI value of the CLI between all interfering stations and the interfered station, and cannot accurately measure the CLI value of a particular interfered station. If the measurement signals of different interfering stations are configured at different locations, the interfered station estimates the CLI value between the interfered station and the interfered station and feeds the CLI value back to the interfered station to complete cooperative scheduling between base stations. In both of the above modes, rate matching can be performed based on the time-frequency resource of the measurement signal, such as PDSCH rate matching.

[0084] In an embodiment of the present application, in the case of a measurement signal that is a non-zero power and non-unique signal, the above step S22 may be to measure the CLI value between each interfering station and the interfered station based on the measurement signal transmitted from each interfering station.

[0085] For a measurement signal that is non-zero power and non-specific, the measurement signal may occupy a second preset number of consecutive REs every other first preset number of REs in the symbols occupied by the time-domain resources. The first and second preset numbers may be set according to actual needs. For example, the first preset number may be 1, 2, 4, 6, 12, or 24, and the second preset number may be 1, 2, or 3. Taking the second preset number as an example, FIGS. 7a to 7c show three combinations (combs) of CSI-RS time-domain resource configurations. In the comb shown in FIG. 7a, different fillings indicate different CSI-RSs. It can be seen that all frequency-domain resources in one symbol #13 are used for the CSI-RS. Configuring multiple CSI-RS resources for measuring CLI requires occupying symbols on multiple time-domain resources. In the comb shown in FIG. 7b, different fillings indicate different CSI-RSs. It can be seen that two CSI-RSs are configured in symbol #13. In this case, two CSI-RSs from the same interfering station can be configured in the same time domain symbol, or CSI-RSs from different interfering stations can be configured in the same symbol, and different CSI-RSs occupy different RE resources.Compared to the Comb shown in Figure 7a, the resource utilization rate of the Comb shown in Figure 7b is increased by 1.

[0086] In the comb shown in Figure 7c, different fillings indicate different CSI-RSs. It can be seen that four CSI-RSs are configured in symbol #13. Compared to the comb shown in Figure 7a, the resource utilization rate of the comb shown in Figure 7c is increased by three times, and compared to the comb shown in Figure 7b, the resource utilization rate of the comb shown in Figure 7c is increased by one time.

[0087] The initial positions of the time and frequency domain resources for different CSI-RSs may be indicated by specific signaling. The time domain resource of the CSI-RS is indicated by a combination of slot, starting symbol, and symbol length, and the starting position in the frequency domain is indicated by a combination of the starting position of a physical resource block (PRB), PRB length, and RE offset. For example, in Figures 7a to 7c, the starting symbol of the CSI-RS resources in all different combs is 13, and the symbol length is 1. For the CSI-RS resources in the comb shown in Figure 7a, RE offset = 0. For the CSI-RS resources filled with the left-sloping line and the CSI-RS resources filled with the right-sloping line in the comb shown in Figure 7b, the RE offsets are 0 and 1, respectively. In the comb shown in Figure 7c, the RE offsets of the four CSI-RS resources are 0, 1, 2, and 3, respectively.

[0088] When an interfered station has only one interfering station, the CSI-RS resources in the combs shown in Figures 7b and 7c occupy only 1 / 2 and 1 / 4 of the RE resources in one PRB. To improve resource utilization, the remaining RE resources in the interfering station may be used for transmitting other downlink data, which can be completed by rate matching when used for PDSCH transmission, for example.

[0089] When an interfered station has multiple interfering stations, such as two interfering stations, the two interfering stations may each configure the CSI-RS resource comb shown in FIG. 7b. In this case, if a single interfering station transmits a downlink channel or other signal, such as a PDSCH, on the CSI-RS resource of another interfering station, this will affect the detection of the CSI-RS and thus the accuracy of the CLI measurement by the interfered station. To improve the accuracy of the CLI measurement by the interfered station, it is necessary to avoid a single interfering station scheduling a downlink channel or other signal on the CSI-RS resource of another interfering station.

[0090] In the embodiment of the present application, the measurement signal used for CLI measurement of the base station is a non-specific signal such as the CSI-IM signal or the CSI-RS. When there are multiple interfering stations, the configuration information of the measurement signal at the interfered station is a collection of the first configuration information of the multiple interfering stations.

[0091] Specifically, each interfering station may configure one or more, for example, M, base station-level measurement signal resource sets, where M may be 1, 2, 4, 8, 16, or 32, and each measurement signal resource set may include K measurement signal resources, where K≧1. The interfered station needs to configure its own measurement signal resource according to the measurement signal resource configurations of all interfering stations. That is, the measurement signal resource of the interfered station is the collection of the measurement signal configurations of all interfering stations that interfere with it.

[0092] For the measurement signal resources of different interfering stations, various measurement signal configuration methods may be used, such as different measurement signal resource configurations, the same measurement signal resource configurations, or partially the same measurement signal resource configurations, that is, the first positions of the measurement signals of each interfering station in the time domain resource and the frequency domain resource are the same or different.

[0093] When the measurement signal is a zero-power signal such as a CSI-IM signal, for different CSI-IM resource configurations, the interfered station can estimate the CLI value between each interferer and interfered station according to different CSI-IM resource configurations. For some identical CSI-IM resource configurations, the interfered station can estimate the CLI value between the interferer and interfered station with individual CSI-IM resource configurations. For the exact same CSI-IM resource configuration, the interfered station can estimate the total CLI value between all interferers and interfered stations, but cannot obtain the CLI value between each interferer and interfered station.

[0094] If the measurement signal is a non-zero power signal and a non-unique signal such as CSI-RS, for different CSI-RS resource configurations, the same CSI-RS resource configuration, or partially the same CSI-RS resource configuration, the interfered station can estimate the CLI value between each interfering station and the interfered station according to the CSI-RS resource configuration of each interfering station.

[0095] For each measurement signal resource set, a unique resource identifier (ID) may be introduced to identify which base station's measurement signal resource the measurement signal belongs to. The ID may be expressed in the format of Physical cell ID+Resource Set ID, where Physical cell ID indicates which base station the measurement signal belongs to, and Resource Set ID indicates a specific measurement signal resource set in the base station. For the measurement signal resources in each measurement signal resource set, each measurement signal resource has a unique ID, such as Resource ID. In this way, the interfered station can identify the measurement signal resource by the Physical Cell ID, Resource Set ID, and Resource ID.

[0096] If the measurement signal is a non-specific signal, the number of ports of the measurement signal used for CLI measurement may be set to one or more. In the time domain, the measurement signal may occupy one or more symbols, for example, two or four symbols. In the frequency domain, the number of PRBs occupied by the measurement signal may be flexibly set according to the bandwidth range required for CLI measurement. Alternatively, in the frequency domain, the PRB index number at the start position of the measurement signal must be divisible by four. The minimum number of PRBs occupied by the measurement signal is 24 and must be set to a multiple of four. The PRB index number at the start position is the number of the starting PRB. The frequency domain resource configuration of the measurement signal can be divided into the following two cases:

[0097] In situation 1, the bandwidth of the interfering station is larger than the bandwidth of the interfered station. In this case, the frequency domain range of the measurement signal at the symbol indicated by the first position is all PRBs covering the carrier of the interfered station. That is, the starting physical resource block (PRB) of the measurement signal at the symbol indicated by the first position is the starting point of the carrier of the interfered station, and the size of the measurement signal is the bandwidth of the interfered station. Or, the number of the starting physical resource block (PRB) of the measurement signal at the symbol indicated by the first position is larger than the starting point of the carrier of the interfered station and is the smallest value divisible by 4, and the size of the measurement signal is smaller than the bandwidth of the interfered station and is the largest value divisible by 4.

[0098] For example, Figures 8a and 8b show two schematic diagrams of measurement signal configurations. In Figures 8a and 8b, the carrier bandwidth sizes of the interfering station and the interfered station are not the same. Here, the subcarrier spacing (SCS) between the interfering station and the interfered station is 30 kHz. The carrier bandwidth of the interfering station is 100 MHz and includes 273 PRBs, while the carrier bandwidth of the interfered station is 60 MHz and includes 162 PRBs. The interfered station's carrier is mapped to PRBs 3 to 164 of the interfering station. To enable the interfered station to measure CLI interference, in Figure 8a, the measurement signal is configured on PRBs 3 to 164 of the interfering station, with PRB 3 as the starting PRB and the measurement signal size being 162 PRBs. In Figure 8b, the measurement signal is configured on PRBs 4 to 163 of the interfering station, with PRB 4 as the starting PRB and the measurement signal size being 160 PRBs. The PRBs filled with gray in Figures 8a and 8b are for the interfered station to measure the same channel CLI. Outside the carrier range of the interfered station, as shown in the PRBs filled with diagonal lines in Figures 8a and 8b, the interferer station configures separate CSI-RS resources for the interfered station to measure adjacent channel CLI.

[0099] In situation 2, the bandwidth of the interfering station is equal to or less than the bandwidth of the interfered station, in which case the measurement signal at the symbol shown in the first position occupies all PRBs within the bandwidth range of the interfering station.

[0100] In an embodiment of the present application, the measurement signal is configured within the entire bandwidth range of the interfering station. To enable the interfered station to measure the interference from the entire carrier of the interfering station to the interfered station, the interfering station may configure the measurement signal resource with the entire bandwidth. That is, the starting PRB is PRB0, and the number of PRBs is Ceil(B / 4)*4, where B represents the total number of PRBs in the interfered station's bandwidth, and Ceil() represents the rounded-up integer. If the number of PRBs in the measurement signal resource configuration exceeds the bandwidth range, the interfered station will consider the measurement signal to occupy the entire bandwidth of the interfered station. In frequency domain resources where the interfered station coincides with the interferer station, the interfered station can measure same-channel CLI interference, and in frequency domain resources where the interfered station does not coincide with the interferer station, the interfered station can measure adjacent-channel CLI interference.

[0101] In some embodiments, when the measurement signal is a non-zero power signal such as the SSB or CSI-RS, the CLI measurement method may further include setting the location of the measurement signal of the interfered station in the time domain resource and the frequency domain resource as an UL unavailable resource.

[0102] The interfered station does not use the time-frequency resource at the same position as the measurement signal of the interfering station for transmitting any UL data. That is, when the interfered station schedules PUSCH, PUCCH, SRS, or PRACH, it avoids the position of the measurement signal of the interfering station. In this embodiment, the interfered station determines the position of the measurement signal and sets the time-frequency resource that coincides with the measurement signal as an UL unavailable resource.

[0103] Figure 9 shows a schematic diagram of the UL unavailable resources corresponding to the locations of SSB signals. In Figure 9, the carrier bandwidth of the interfering station is 100 MHz and includes 273 PRBs, while the carrier bandwidth of the interfered station is 60 MHz and includes 162 PRBs. The numbers 0-13 in the first row represent time-domain symbols, and the numbers 0-272 and 0-161 in the second column to the left of the interfering station and interfered station represent PRB numbers. The interfering station configures two SSBs, SSB0 and SSB1, in one slot. These are located at symbols #2-#5 and symbols #8-#11, respectively, and occupy PRBs 0-19 in the frequency domain, as shown in the gray-filled areas on the left side of Figure 9. According to the carrier correspondence relationship between the interfering station and the interfered station, the UL unusable resources in the same slot at the interfered station are obtained as shown in the gray-filled area in the right diagram of Figure 9, where the positions of the UL unusable resources in the time domain match the positions of the SSB signals of the interfering station, and the positions of the UL unusable resources in the frequency domain are PRBs #0 to #16, a total of 17 PRBs.

[0104] In the case of uplink data such as PRACH, PUCCH, and SRS, the interfered station avoids the above-mentioned UL unavailable resources when performing scheduling, and transmits other uplink data using PRBs or symbols other than the UL unavailable resources, for example, using PRBs #17-#161 in all symbols in Figure 9, or using all PRBs in symbols #0, #1, #6, #7, #12, and #13 to transmit uplink data.

[0105] For other uplink data that supports rate matching, such as PUSCH, the interfered station may avoid the UL unusable resource in two ways: one is to use PRBs or symbols other than the UL unusable resource, and the other is to perform PRB-level rate matching around the UL unusable resource.

[0106] In some embodiments, the measurement signal may be a specific signal of the interfering station, such as the SSB signal. In this case, the interfered station can transmit configuration information of the UL unavailable resources, i.e., second configuration information, to the UE served by the interfered station through a system information block (SIB) or specific radio resource control (RRC) signaling. The second configuration information may include the position of the first frame in which the measurement signal is located, configuration information on the time domain resource and the frequency domain resource of the measurement signal, and scheduling information. The scheduling information instructs the UE to transmit uplink data using PRBs or symbols other than the UL unavailable resources, or the scheduling information instructs the UE to transmit the rate-matched uplink data after rate-matching other uplink data around the UL unavailable resources.

[0107] The measurement signal, which is a specific signal, is located in the first slot of each frame. However, since the length of one frame is 10 milliseconds (ms) and the period of the measurement signal, which is a specific signal, can be 10, 20, 40, or 80 ms, not all frames contain the measurement signal. Therefore, it is also necessary to determine the position of the first frame in which the measurement signal exists after RRC signaling is enabled. The information on the UL unavailable resources in the SIB or specific RRC signaling may include the position of the first frame in which the measurement signal exists and the configuration information of the time-frequency resource. Here, the position of the first frame refers to the frame number in which the first measurement signal of one measurement signal period after the SIB or RRC signaling is enabled is located. When setting the frame number of the first frame, the time difference between the signaling transmission and the valid time must be fully taken into consideration, and the time domain position of the measurement signal must be located in a frame after the signaling valid frame. There may be one or more time-frequency resource configurations, and each measurement signal configuration corresponds to one measurement signal and includes the ID, period and offset, time domain position and frequency domain position of the measurement signal configuration.

[0108] In some embodiments, the measurement signal may be a non-specific signal of the interfering station, such as the above-mentioned CSI-RS. In this case, the interfered station configures rate matching parameters for the UE served by the interfered station within the BWP range of the UE served by the interfered station, and transmits configuration information of UL unavailable resources, i.e., third configuration information, to the UE, where the third configuration information may include configuration information and rate matching parameters for time domain resources and frequency domain resources of the measurement signal.

[0109] In the case of an interfered station, if the UE schedules UL data transmission on the measurement signal resource configured by the interfering station, this will simultaneously affect the reception of uplink data (e.g., PUSCH) and CLI measurement based on the measurement signal. To avoid this situation, the interfered station avoids the location of the time-frequency resources of all measurement signals used for CLI measurement when scheduling the PRACH, PUSCH, PUCCH, or SRS. In this case, the interfered station can report the resource configuration information of all activated measurement signals to the UE. Furthermore, for uplink data (e.g., PUSCH) transmission, the interfered station can improve UL resource utilization by using a rate matching method, i.e., transmitting PUSCH in RE resources not occupied by the measurement signal. For example, if there is only one measurement signal resource for CLI measurement, the frequency-domain density configuration of the measurement signal can be configured according to actual needs. For example, see the comb configuration of the measurement signal shown in Figure 7c above. In this case, the UE can perform rate matching of the PUSCH around the RE occupied by the measurement signal, thereby fully utilizing the UL time-frequency resources. In the current 5G communication system, rate matching of PUSCH is not supported, but to support this function, it is necessary to configure rate matching parameters of PUSCH in the UE.

[0110] Taking the PUSCH as an example, the rate matching parameters may be configured in the UE from the interfered station through RRC signaling. Because the BWP configuration of each UE in the interfering station may be different, the PUSCH rate matching parameters for the UE need to be configured within the UE's BWP range. The process of configuring the rate matching parameters may involve sending detailed configuration information of measurement signal resources for all activated CLI measurements in the interfered station to the UE. Within the UE's BWP range, all REs occupied by all activated measurement signals are shown as UL unavailable resources. The filled REs in FIG. 10 cannot be used for UL transmission, while all other REs can be used for UL transmission. Next, a new rate matching pattern for the PUSCH is introduced, and the IDs of the measurement signal resources that cannot be used for PUSCH transmission are added to the pattern. In this way, the UE can perform rate matching around these measurement signal resources. To ensure compatibility with the current PUSCH rate matching parameters, the PUSCH rate matching parameters may be introduced based on the current RRC signaling.

[0111] In an embodiment of the present application, if the interfered station does not receive the rate matching parameters, the interfered station can transmit other uplink data using PRBs or symbols other than the UL unavailable resources without performing rate matching.

[0112] The CLI measurement methods provided by the embodiments of the present application using SSB, CSI-IM signaling, and CSI-RS will be described in detail below.

[0113] 1. The steps for measuring CLI using SSB are as follows:

[0114] In step a, a neighboring base station where a CLI may exist obtains configuration information including SSB, such as frame structure configuration information, BWP configuration information, CLI reporting configuration information, beam management information, and channel and signal time-frequency resource configuration information, from the controller.

[0115] In step b, the interfered station detects the SSB of the interfering station according to the information configured by the controller, obtains the CLI measurement result, and reports the CLI measurement result to the controller. The reported CLI measurement result may be the CLI values ​​of all interfered stations, the CLI value of the base station where CLI interference exists as determined by the interfered station itself, or a CLI indicator indicating whether CLI interference exists. For example, if the CLI value exceeds a certain threshold, it is determined that CLI interference exists.

[0116] In step c, the controller adjusts the scheduling of time-frequency resources between the interfering station and the interfered station according to the CLI measurement result reported by the interfered station, for example, by pausing the PDSCH transmission of the interfering station, reducing its transmission power, or informing the interfered station to pause UL scheduling.

[0117] In step d, each base station performs subsequent data transmission according to the control command received from the controller, and then repeats steps b to c.

[0118] In the embodiment of the present application, in the process of measuring CLI by SSB, the interfering station continues to transmit SSB, and the interfered station also continues to measure CLI.

[0119] Second, when CLI measurement is performed using CSI-IM signals, the CSI-IM signal resources may be configured as periodic CSI-IM signals, aperiodic CSI-IM signals, and semi-persistent CSI-IM signals.

[0120] The period of the periodic CSI-IM signal is set in slot units and is selected from values ​​such as 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 640, and 1280, and is configured in any slot where CLI interference may exist. The steps for measuring CLI using the periodic CSI-IM signal are as follows:

[0121] In step a, the controller acquires configuration information including CSI-IM signals such as frame structure configuration information, BWP configuration information, CLI reporting configuration information, beam management information, and channel and signal time-frequency resource configuration information between adjacent base stations where CLI can exist.

[0122] In step b, the interfered station detects the CSI-IM signal of the interfering station according to the information configured by the controller and the above-mentioned measurement principle, obtains a CLI measurement result, and reports the CLI measurement result to the controller. The reported CLI measurement result may be the CLI values ​​of all interfered stations, the CLI value of the base station where CLI interference exists as determined by the interfered station itself, or a CLI indicator indicating whether CLI interference exists. For example, if the CLI value exceeds a certain threshold, it is determined that CLI interference exists.

[0123] In step c, the controller adjusts the scheduling of time-frequency resources between the interfering station and the interfered station according to the CLI measurement result reported by the interfered station, for example, by pausing the PDSCH transmission of the interfering station, reducing its transmission power, or informing the interfered station to pause UL scheduling.

[0124] In step d, each base station performs subsequent data transmission according to the control command received from the controller, and then repeats steps b to c.

[0125] The configuration of semi-persistent CSI-IM signals is consistent with the configuration of periodic CSI-IM signals, but differs in that the configuration of periodic CSI-IM signals is activated after completing information exchange between base stations, while the semi-persistent CSI-IM signals need to be triggered and activated by a controller. The aperiodic CSI-IM signals are configured when the interfered station detects CLI and are synchronized between the interferer and interfered station. Compared with periodic CSI-IM signals, semi-persistent and aperiodic CSI-IM signals can avoid the waste of resources caused by the configuration of periodic CSI-IM signals. The steps for performing CLI measurements using semi-persistent or aperiodic CSI-IM signals are as follows:

[0126] In step a, a neighboring base station where a CLI may exist obtains configuration information, etc., including semi-persistent / non-periodic CSI-IM signals such as frame structure configuration information, BWP configuration information, CLI reporting configuration information, beam management information, and channel and signal time-frequency resource configuration information, from the controller.

[0127] In step b, the interfered station detects that a certain slot is experiencing a more severe degradation in performance than other slots, for example, if the degradation in the signal to interference plus noise ratio (SINR) shows characteristics that are clearly different from white noise interference and UL data cannot be received normally, the interfered station sends information to the controller reporting that a CLI exists between base stations in that slot.

[0128] In step c, the controller configures CSI-IM resources for each interfering station according to information such as the base station's frame structure, BWP, channel and signal time-frequency resource allocation, and slot in which CLI interference may exist. If the interfering station configures a semi-persistent / aperiodic CSI-IM signal in the slot, the controller activates the semi-persistent / aperiodic CSI-IM signal in the interfering station and the interfered station. If the interfering station does not configure a semi-persistent / aperiodic CSI-IM signal, the controller configures CSI-IM resources for the interfering station and sends the configuration information and corresponding activation times to each interfering station, and sends the configuration information and corresponding activation times of all CSI-IM signals to the interfered station. In this embodiment, the locations of the CSI-IM signals of each base station may or may not be the same.

[0129] In step d, the interfering station does not transmit any data on the designated time-frequency resource according to the configured CSI-IM resource, while the interfered station performs CLI measurement on the designated time-frequency resource and reports the CLI measurement result to the controller. The reported CLI measurement result may be the CLI values ​​of all interfering stations, some interfering stations, or a base station, or may be the CLI indicators of all interfering stations, some interfering stations, or a base station.

[0130] In step e, the controller notifies the base station without interference to stop configuring the CSI-IM signal (base station of individual CSI-IM signal) according to the CLI measurement result reported by the interfered station, and adjusts the scheduling of time-frequency resources between the interferer station and the interfered station, for example, by pausing the DL PDSCH transmission of all interferer stations, reducing the DL transmission power, or notifying the interfered station to suspend UL scheduling.

[0131] In step f, each base station performs subsequent data transmission in accordance with the control command received from the controller, and then repeats steps b to e.

[0132] Third, when CLI measurement is performed using CSI-RS, the CSI-RS resource may be configured as periodic CSI-RS, aperiodic CSI-RS, and semi-persistent CSI-RS.

[0133] The period of the periodic CSI-RS is set in slot units and is selected from values ​​such as 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 640, and 1280, and the periodic CSI-RS is configured in any slot where CLI interference may exist. The steps for measuring CLI using the periodic CSI-RS are as follows:

[0134] In step a, the controller obtains configuration information including CSI-RS such as frame structure configuration information, BWP configuration information, CLI reporting configuration information, beam management information, and channel and signal time-frequency resource configuration information between adjacent base stations where CLI can exist.

[0135] In step b, the interfered station detects the CSI-RS of the interfering station according to the information configured by the controller and the above-mentioned measurement principle, obtains the CLI measurement result, and reports the CLI measurement result to the controller. The reported CLI measurement result may be the CLI values ​​of all interfered stations, the CLI value of the base station where CLI interference exists as determined by the interfered station itself, or a CLI indicator indicating whether CLI interference exists. For example, if the CLI value exceeds a certain threshold, it is determined that CLI interference exists.

[0136] In step c, the controller adjusts the scheduling of time-frequency resources between the interfering station and the interfered station according to the CLI measurement result reported by the interfered station, for example, by suspending the PDSCH transmission of the interfering station, reducing its transmission power, or informing the interfered station to suspend UL scheduling.

[0137] In step d, each base station performs subsequent data transmission according to the control command received from the controller, and then repeats steps b to c.

[0138] The configuration of semi-persistent CSI-RS is consistent with periodic CSI-RS, but differs in that the configuration of periodic CSI-RS is activated after completing information exchange between base stations, whereas semi-persistent CSI-RS needs to be triggered and activated by the controller. Aperiodic CSI-RS is configured when the interfered station detects CLI and is synchronized between the interferer and interfered station. Compared with periodic CSI-RS, semi-persistent and aperiodic CSI-RS can avoid resource waste caused by configuring periodic CSI-RS. The steps for measuring CLI using semi-persistent or aperiodic CSI-RS are as follows:

[0139] In step a, the controller acquires configuration information including semi-persistent / non-periodic CSI-RS such as frame structure configuration information, BWP configuration information, CLI reporting configuration information, beam management information, and channel and signal time-frequency resource configuration information between neighboring base stations where CLI can exist.

[0140] In step b, the interfered station detects that performance degradation is more severe in a certain slot than in other slots, and if, for example, the SINR degradation exhibits characteristics that are clearly different from white noise interference and UL data cannot be received normally, it transmits information to the controller, reporting that CLI exists between base stations in that slot.

[0141] In step c, the controller configures CSI-RS resources for each interfering station according to information such as the base station's frame structure, BWP, channel and signal time-frequency resource allocation, and slot in which CLI interference may exist. If the interfering station has configured semi-persistent / aperiodic CSI-RSS in the slot and the time-frequency resources do not overlap, the controller activates the semi-persistent / aperiodic CSI-RS in the interfering station and the interfered station. If the interfering station has not configured semi-persistent / aperiodic CSI-RSS, the controller configures non-overlapping CSI-RS resources for the interfering station and sends the configuration information and corresponding activation times to each interfering station, and sends the configuration information and corresponding activation times of all CSI-RSs to the interfered station.

[0142] In step d, the interfering station transmits CSI-RS on the designated time-frequency resource according to the configured CSI-RS resource, while the interfered station receives CSI-RS on the time-frequency resource, performs CLI measurement, and reports the CLI measurement result to the controller. The reported CLI measurement result may be the CLI value of all interfering stations, some interfering stations, or a base station, or may be the CLI indicator of all interfering stations, some interfering stations, or a base station.

[0143] In step e, the controller notifies the base station without interference to stop transmitting CSI-RS according to the CLI measurement results reported by the interfered station, releases this part of the CSI-RS configuration, and the base station with interference continues transmitting CSI-RS and adjusts the scheduling of time-frequency resources between the interfering station and the interfered station, for example, by pausing DL PDSCH transmission of all interfered stations, reducing DL transmission power, or notifying the interfered station to suspend UL scheduling.

[0144] In step f, each base station performs subsequent data transmission in accordance with the control command received from the controller, and then repeats steps b to e.

[0145] Corresponding to the above CLI measurement method, the embodiment of the present application further provides a CLI measurement method applied to an interfering station, which CLI measurement method includes the following steps, as shown in FIG.

[0146] In step S111, first configuration information of the measurement signal is obtained, where the first configuration information indicates a first position of the measurement signal in the time domain resource and the frequency domain resource.

[0147] In step S112, a measurement signal is transmitted to the interfered station at the first location.

[0148] In some embodiments, the method for measuring CLI comprises: generating first configuration information; Sending first configuration information to a controller; It may further include:

[0149] In some embodiments, when the measurement signal is a non-specific signal of an interfering station, the CLI measurement method includes: After generating the first configuration information, activating the first configuration information; It may further include:

[0150] In some embodiments, when the measurement signal is a non-specific signal of an interfering station, the CLI measurement method includes: receiving an activation time of first configuration information for a first slot transmitted from the controller, or receiving first configuration information and an activation time for a first slot transmitted from the controller; activating the first configuration information for the first slot when the activation time is reached; It may further include:

[0151] In some embodiments, the measurement signal is a non-specific signal of the interfering station, and the measurement signal is a zero-power signal, and the first positions of the measurement signals of each interfering station of the interfered station in the time domain resource and the frequency domain resource are different or the same, or the first positions of the measurement signals of some interfering stations of the interfered station in the time domain resource and the frequency domain resource are the same.

[0152] In some embodiments, the symbol indicated in the first position at the interfered station is the same as or different from the symbol occupied by the uplink demodulation reference signal.

[0153] In some embodiments, if the symbol indicated in the first position in the interfered station is the same as the symbol occupied by the uplink demodulation reference signal, other downlink data occupying the symbol indicated in the first position in the interfering station uses other symbols.

[0154] In some embodiments, when the symbol indicated at the first position at the interfered station is different from the symbol occupied by the uplink demodulation reference signal, the symbol indicated at the first position at the interfering station is different from the symbol occupied by other downlink data.

[0155] In some embodiments, the pattern of the measurement signal includes a first pattern and a second pattern; In the first pattern, the measurement signal occupies two consecutive symbols in the time domain resource and two consecutive resource elements in each physical resource block in the frequency domain resource; In the second pattern, the measurement signal occupies one symbol in the time domain resource and four consecutive resource elements in each physical resource block in the frequency domain resource.

[0156] In some embodiments, when the measurement signal is a non-specific signal of an interfering station and the measurement signal is a non-zero power signal, the measurement signal occupies a second preset number of consecutive resource elements every other first preset number of resource elements in the symbol occupied by the measurement signal in the time domain resource.

[0157] In some embodiments, when there are multiple interfering stations, the configuration information of the measurement signal at the interfered station is a collection of the first configuration information of the multiple interfering stations.

[0158] In some embodiments, the first locations in the time domain resource and the frequency domain resource of the measurement signal of each interfering station are the same or different.

[0159] In some embodiments, if the bandwidth of the interfering station is greater than the bandwidth of the interfered station, The starting physical resource block of the measurement signal at the symbol indicated in the first position is the carrier starting point of the interfered station, and the size of the measurement signal is the bandwidth of the interfered station; or The number of the starting physical resource block of the measurement signal in the symbol indicated in the first position is greater than the carrier starting point of the interfered station and is the smallest value divisible by 4, and the size of the measurement signal is the bandwidth of the interfered station or is less than or equal to the bandwidth of the interfered station and is the largest value divisible by 4.

[0160] In some embodiments, if the bandwidth of the interfering station is less than or equal to the bandwidth of the interfered station, the measurement signal at the symbol indicated in the first position occupies all physical resource blocks within the bandwidth range of the interfering station.

[0161] In some embodiments, when the measurement signal is a unique signal, the measurement signal is an SSB; If the measurement signal is a non-specific signal, the measurement signal is a CSI-IM signal or a CSI-RS.

[0162] In some embodiments, the measurement signal is in a downlink or flexible slot of the interfering station and in an uplink or flexible slot of the interfered station.

[0163] In the technical solution provided by the embodiments of the present application, an interfering station transmits a measurement signal to an interfered station, and the interfered station measures the measurement signal transmitted from the interfering station to estimate a CLI value from the interfering station to the interfered station. Based on the CLI value from the interfering station to the interfered station, a corresponding CLI suppression technique can be obtained, and the scheduling of time-frequency resources between base stations can be adjusted to suppress CLI in the F-TDD communication system, thereby reducing the impact of CLI on the performance of the 5G communication system.

[0164] Corresponding to the above CLI measurement method, an embodiment of the present application further provides a CLI measurement method applied to a controller, which CLI measurement method, as shown in FIG. 12, includes the following steps:

[0165] In step S121, first configuration information of an interfering station is obtained, where the first configuration information indicates a first position in the time domain resource and the frequency domain resource of a measurement signal, and the measurement signal is for measuring a CLI value.

[0166] In step S122, the first configuration information of the interfering station is transmitted to the interfered station.

[0167] In some embodiments, the method for measuring CLI comprises: receiving a CLI value or a CLI indicator measured by the interfered station based on the first configuration information, the CLI indicator being for indicating whether a CLI exists between the interfered station and the interfering station; Coordinating scheduling of time-frequency resources between the interfering station and the interfered station according to the CLI value or CLI indicator; It may further include:

[0168] In some embodiments, the step of obtaining first configuration information of the interfering station comprises: receiving first configuration information transmitted from an interfering station; configuring first configuration information for the interfering station if the first configuration information is not received; Includes:

[0169] In some embodiments, when the measurement signal is a non-specific signal of an interfering station, the CLI measurement method includes: receiving a notification message sent from the interfered station, the notification message indicating the presence of a CLI in the first slot; If the first configuration information of the interfering station exists in the first slot, transmitting an activation time of the first configuration information for the first slot to the interfered station and the interfering station; If there is no first configuration information of the interfering station in the first slot, configuring first configuration information for the interfering station for the first slot, and sending the first configuration information for the first slot and an activation time to the interfered station and the interfering station; It may further include:

[0170] In some embodiments, the measurement signal is a non-specific signal of the interfering station, and the measurement signal is a zero-power signal. When there are multiple interfering stations, the first positions of the measurement signals of each interfering station in the time domain resource and the frequency domain resource are different or the same, or the first positions of the measurement signals of some interfering stations of the interfered station in the time domain resource and the frequency domain resource are the same.

[0171] In some embodiments, the symbol indicated in the first position at the interfered station is the same as or different from the symbol occupied by the uplink demodulation reference signal.

[0172] In some embodiments, if the symbol indicated in the first position in the interfered station is the same as the symbol occupied by the uplink demodulation reference signal, other downlink data occupying the symbol indicated in the first position in the interfering station uses other symbols.

[0173] In some embodiments, when the symbol indicated at the first position at the interfered station is different from the symbol occupied by the uplink demodulation reference signal, the symbol indicated at the first position at the interfering station is different from the symbol occupied by other downlink data.

[0174] In some embodiments, the pattern of the measurement signal includes a first pattern and a second pattern; In the first pattern, the measurement signal occupies two consecutive symbols in the time domain resource and two consecutive resource elements in each physical resource block in the frequency domain resource; In the second pattern, the measurement signal occupies one symbol in the time domain resource and four consecutive resource elements in each physical resource block in the frequency domain resource.

[0175] In some embodiments, if the measurement signal is a non-specific signal of an interfering station and the measurement signal is a non-zero power signal, in the symbol occupied by the measurement signal in the time domain resource, every other first preset number of resource elements occupies a second preset number of consecutive resource elements.

[0176] In some embodiments, when there are multiple interfering stations, the configuration information of the measurement signal at the interfered station is a collection of the first configuration information of the multiple interfering stations.

[0177] In some embodiments, the first locations in the time domain resource and the frequency domain resource of the measurement signal of each interfering station are the same or different.

[0178] In some embodiments, if the bandwidth of the interfering station is greater than the bandwidth of the interfered station, The starting physical resource block of the measurement signal at the symbol indicated in the first position is the carrier starting point of the interfered station, and the size of the measurement signal is the bandwidth of the interfered station; or The number of the starting physical resource block of the measurement signal in the symbol indicated in the first position is greater than the carrier starting point of the interfered station and is the smallest value divisible by 4, and the size of the measurement signal is the bandwidth of the interfered station or is less than or equal to the bandwidth of the interfered station and is the largest value divisible by 4.

[0179] In some embodiments, if the bandwidth of the interfering station is less than or equal to the bandwidth of the interfered station, the measurement signal at the symbol indicated in the first position occupies all physical resource blocks within the bandwidth range of the interfering station.

[0180] In some embodiments, when the measurement signal is a unique signal, the measurement signal is an SSB; If the measurement signal is a non-specific signal, the measurement signal is a CSI-IM signal or a CSI-RS.

[0181] In some embodiments, the measurement signal is in a downlink or flexible slot of the interfering station and in an uplink or flexible slot of the interfered station.

[0182] In the technical solution provided by the embodiments of the present application, an interfering station transmits a measurement signal to an interfered station, and the interfered station measures the measurement signal transmitted from the interfering station to estimate a CLI value from the interfering station to the interfered station. Based on the CLI value from the interfering station to the interfered station, a corresponding CLI suppression technique can be obtained, and the scheduling of time-frequency resources between base stations can be adjusted to suppress CLI in the F-TDD communication system, thereby reducing the impact of CLI on the performance of the 5G communication system.

[0183] Corresponding to the above-mentioned CLI measurement method, an embodiment of the present application provides a CLI measurement device applied to an interfered station, and as shown in FIG. 13, the CLI measurement device includes: a first receiving means 131 for receiving a measurement signal transmitted from an interfering station; and a measuring means 132 for measuring a CLI value between the interfering station and the interfered station based on the measurement signal.

[0184] In some embodiments, the CLI measurement device further comprises: a first transmitting means for transmitting a CLI value or a CLI indicator to the controller after measuring the CLI value, the CLI indicator being for indicating whether a CLI exists between the interfered station and the interfering station; or first transmitting means for transmitting the CLI value or a CLI indicator to the controller, when the CLI value is greater than a preset CLI threshold, indicating that a CLI exists between the interfered station and the interfering station; Includes:

[0185] In some embodiments, the CLI measurement device further comprises: a second receiving means for receiving first configuration information of the interfering station transmitted from the controller, the first configuration information indicating a first position in the time domain resource and the frequency domain resource of the measurement signal; Specifically, the first receiving means 131 Determining a second location corresponding to the first location of the interfered station in the time domain resource and the frequency domain resource according to the carrier correspondence relationship between the interferer station and the interfered station; and receiving a measurement signal at a second location.

[0186] In some embodiments, if the measurement signal is a non-specific signal of an interfering station, after receiving the first configuration information, the CLI measurement device: first activation means for activating the first configuration information; Further includes:

[0187] In some embodiments, when the measurement signal is a non-specific signal of an interfering station, the CLI measurement device: a second transmitting means for transmitting a notification message to the controller when detecting that a CLI exists in the first slot, the notification message indicating that a CLI exists in the first slot; a third receiving means for receiving an activation time of the first configuration information for the first slot transmitted from the controller, or for receiving the first configuration information and the activation time for the first slot transmitted from the controller; second activation means for activating the first configuration information for the first slot when the activation time is reached; Further includes:

[0188] In some embodiments, when the measurement signal is a non-specific signal of an interfering station, and the measurement signal is a zero power signal, the measuring means 132 specifically: When there are multiple interfering stations and the first positions of the measurement signals of the interfering stations in the time domain resource and the frequency domain resource are different, measuring CLI values ​​between each interfering station and the interfered station based on the measurement signals transmitted from each interfering station; When there are multiple interfering stations and the first positions of the measurement signals of some of the interfering stations in the time domain resource and the frequency domain resource are the same, based on the measurement signals transmitted from each interfering station, measure CLI values ​​between each interfering station and the interfered station that have different first positions, and a total CLI value between some of the interfering stations and the interfered station that have the same first position; When there are multiple interfering stations and the first positions of the measurement signals of the multiple interfering stations in the time domain resource and the frequency domain resource are the same, measuring a total CLI value between the multiple interfering stations and the interfered station based on the measurement signals transmitted from each interfering station; If there is one interfering station, measuring a CLI value between the interfering station and the interfered station based on a measurement signal transmitted from the interfering station; It is used for.

[0189] In some embodiments, the symbol indicated in the first position at the interfered station is the same as or different from the symbol occupied by the uplink demodulation reference signal.

[0190] In some embodiments, if the symbol indicated in the first position in the interfered station is the same as the symbol occupied by the uplink demodulation reference signal, other downlink data occupying the symbol indicated in the first position in the interfering station uses other symbols.

[0191] In some embodiments, when the symbol indicated at the first position at the interfered station is different from the symbol occupied by the uplink demodulation reference signal, the symbol indicated at the first position at the interfering station is different from the symbol occupied by other downlink data.

[0192] In some embodiments, the pattern of the measurement signal includes a first pattern and a second pattern; In the first pattern, the measurement signal occupies two consecutive symbols in the time domain resource and two consecutive resource elements in each physical resource block in the frequency domain resource; In the second pattern, the measurement signal occupies one symbol in the time domain resource and four consecutive resource elements in each physical resource block in the frequency domain resource.

[0193] In some embodiments, when the measurement signal is a non-specific signal of the interfering station and the measurement signal is a non-zero power signal, the measuring means 132 is specifically used to respectively measure the CLI value between each interfering station and the interfered station based on the measurement signal transmitted from each interfering station.

[0194] In some embodiments, in symbols occupied by the measurement signal in the time domain resource, every other first preset number of resource elements occupies a second preset number of consecutive resource elements.

[0195] In some embodiments, when there are multiple interfering stations, the configuration information of the measurement signal at the interfered station is a collection of the first configuration information of the multiple interfering stations.

[0196] In some embodiments, the first locations in the time domain resource and the frequency domain resource of the measurement signal of each interfering station are the same or different.

[0197] In some embodiments, if the bandwidth of the interfering station is greater than the bandwidth of the interfered station, The starting physical resource block of the measurement signal at the symbol indicated in the first position is the carrier starting point of the interfered station, and the size of the measurement signal is the bandwidth of the interfered station; or The number of the starting physical resource block of the measurement signal in the symbol indicated in the first position is greater than the carrier starting point of the interfered station and is the smallest value divisible by 4, and the size of the measurement signal is the bandwidth of the interfered station or is less than or equal to the bandwidth of the interfered station and is the largest value divisible by 4.

[0198] In some embodiments, if the bandwidth of the interfering station is less than or equal to the bandwidth of the interfered station, the measurement signal at the symbol indicated in the first position occupies all physical resource blocks within the bandwidth range of the interfering station.

[0199] In some embodiments, when the measurement signal is a non-zero power signal, the CLI measurement device: The method further includes setting means for setting a location of the interfered station's measurement signal in the time domain resource and the frequency domain resource as an uplink UL unavailable resource.

[0200] In some embodiments, when the measurement signal is a specific signal of an interfering station, the CLI measurement device: and a third transmitting means for transmitting second configuration information of the UL unavailable resources to a user equipment (UE) served by the interfered station; The second configuration information includes a position of a first frame in which the measurement signal is located, configuration information of the measurement signal in time domain resources and frequency domain resources, and scheduling information; the scheduling information is for instructing the UE to transmit other uplink data using physical resource blocks or symbols other than the UL unavailable resources; or The scheduling information is for instructing the UE to perform rate matching on other uplink data around the UL unavailable resources and then transmit the rate-matched other uplink data.

[0201] In some embodiments, when the measurement signal is a non-specific signal of an interfering station, the CLI measurement device: a configuring means for configuring rate matching parameters for a UE served by the interfered station within a BWP range of the UE served by the interfered station; a fourth transmitting means for transmitting third configuration information of UL unavailable resources to the UE, the third configuration information including configuration information in time domain resources and frequency domain resources of the measurement signal and a rate matching parameter; Further includes:

[0202] In some embodiments, when the measurement signal is a unique signal, the measurement signal is an SSB; If the measurement signal is a non-specific signal, the measurement signal is a CSI-IM signal or a CSI-RS.

[0203] In some embodiments, the measurement signal is in a downlink or flexible slot of the interfering station and in an uplink or flexible slot of the interfered station.

[0204] In the technical solution provided by the embodiments of the present application, an interfering station transmits a measurement signal to an interfered station, and the interfered station measures the measurement signal transmitted from the interfering station to estimate a CLI value from the interfering station to the interfered station. Based on the CLI value from the interfering station to the interfered station, a corresponding CLI suppression technique can be obtained, and the scheduling of time-frequency resources between base stations can be adjusted to suppress CLI in the F-TDD communication system, thereby reducing the impact of CLI on the performance of the 5G communication system.

[0205] Corresponding to the above-mentioned CLI measurement method, an embodiment of the present application provides a CLI measurement device applied to an interfering station, and as shown in FIG. 14, the CLI measurement device includes: an acquiring means 141 for acquiring first configuration information of the measurement signal, the first configuration information indicating a first position of the measurement signal in the time domain resource and the frequency domain resource; first transmitting means 142 for transmitting a measurement signal to the interfered station at the first location; Includes:

[0206] In some embodiments, the CLI measurement device comprises: A generating means for generating first configuration information; second transmitting means for transmitting the first configuration information to the controller; It may further include:

[0207] In some embodiments, when the measurement signal is a non-specific signal of an interfering station, the CLI measurement device: The system may further include a first activation means for activating the first configuration information after generating the first configuration information.

[0208] In some embodiments, when the measurement signal is a non-specific signal of an interfering station, the CLI measurement device: receiving means for receiving an activation time of first configuration information for the first slot transmitted from the controller, or receiving the first configuration information and the activation time for the first slot transmitted from the controller; second activation means for activating the first configuration information for the first slot when the activation time is reached; It may further include:

[0209] In some embodiments, the measurement signal is a non-specific signal of the interfering station, and the measurement signal is a zero-power signal, and the first positions of the measurement signals of each interfering station of the interfered station in the time domain resource and the frequency domain resource are different or the same, or the first positions of the measurement signals of some interfering stations of the interfered station in the time domain resource and the frequency domain resource are the same.

[0210] In some embodiments, the symbol indicated in the first position at the interfered station is the same as or different from the symbol occupied by the uplink demodulation reference signal.

[0211] In some embodiments, if the symbol indicated in the first position in the interfered station is the same as the symbol occupied by the uplink demodulation reference signal, other downlink data occupying the symbol indicated in the first position in the interfering station uses other symbols.

[0212] In some embodiments, when the symbol indicated at the first position at the interfered station is different from the symbol occupied by the uplink demodulation reference signal, the symbol indicated at the first position at the interfering station is different from the symbol occupied by other downlink data.

[0213] In some embodiments, the pattern of the measurement signal includes a first pattern and a second pattern; In the first pattern, the measurement signal occupies two consecutive symbols in the time domain resource and two consecutive resource elements in each physical resource block in the frequency domain resource; In the second pattern, the measurement signal occupies one symbol in the time domain resource and four consecutive resource elements in each physical resource block in the frequency domain resource.

[0214] In some embodiments, when the measurement signal is a non-specific signal of an interfering station and the measurement signal is a non-zero power signal, the measurement signal occupies a second preset number of consecutive resource elements every other first preset number of resource elements in the symbol occupied by the measurement signal in the time domain resource.

[0215] In some embodiments, when there are multiple interfering stations, the configuration information of the measurement signal at the interfered station is a collection of the first configuration information of the multiple interfering stations.

[0216] In some embodiments, the first locations in the time domain resource and the frequency domain resource of the measurement signal of each interfering station are the same or different.

[0217] In some embodiments, if the bandwidth of the interfering station is greater than the bandwidth of the interfered station, The starting physical resource block of the measurement signal at the symbol indicated in the first position is the carrier starting point of the interfered station, and the size of the measurement signal is the bandwidth of the interfered station; or The number of the starting physical resource block of the measurement signal in the symbol indicated in the first position is greater than the carrier starting point of the interfered station and is the smallest value divisible by 4, and the size of the measurement signal is the bandwidth of the interfered station or is less than or equal to the bandwidth of the interfered station and is the largest value divisible by 4.

[0218] In some embodiments, if the bandwidth of the interfering station is less than or equal to the bandwidth of the interfered station, the measurement signal at the symbol indicated in the first position occupies all physical resource blocks within the bandwidth range of the interfering station.

[0219] In some embodiments, when the measurement signal is a unique signal, the measurement signal is an SSB; If the measurement signal is a non-specific signal, the measurement signal is a CSI-IM signal or a CSI-RS.

[0220] In some embodiments, the measurement signal is in a downlink or flexible slot of the interfering station and in an uplink or flexible slot of the interfered station.

[0221] In the technical solution provided by the embodiments of the present application, an interfering station transmits a measurement signal to an interfered station, and the interfered station measures the measurement signal transmitted from the interfering station to estimate a CLI value from the interfering station to the interfered station. Based on the CLI value from the interfering station to the interfered station, a corresponding CLI suppression technique can be obtained, and the scheduling of time-frequency resources between base stations can be adjusted to suppress CLI in the F-TDD communication system, thereby reducing the impact of CLI on the performance of the 5G communication system.

[0222] In accordance with the above-mentioned CLI measurement method, an embodiment of the present application provides a CLI measurement device applied to a controller, and as shown in FIG. 15, the CLI measurement device includes: an acquiring means 151 for acquiring first configuration information of an interfering station, the first configuration information indicating a first position in a time domain resource and a frequency domain resource of a measurement signal, the measurement signal being for measuring a CLI value; and a first transmitting means 152 for transmitting the first configuration information of the interfering station to the interfered station.

[0223] In some embodiments, the CLI measurement device comprises: a first receiving means for receiving a CLI value or a CLI indicator measured by the interfered station based on the first configuration information, the CLI indicator being for indicating whether a CLI exists between the interfered station and the interfering station; Coordination means for coordinating scheduling of time-frequency resources between the interfering station and the interfered station according to a CLI value or a CLI indicator; It may further include:

[0224] In some embodiments, the obtaining means specifically comprises: receiving first configuration information transmitted from an interfering station; configuring first configuration information for the interfering station if the first configuration information is not received; It is used for.

[0225] In some embodiments, when the measurement signal is a non-specific signal of an interfering station, the CLI measurement device: a second receiving means for receiving a notification message transmitted from the interfered station, the notification message indicating that a CLI exists in the first slot; a first transmitting means for transmitting an activation time of the first configuration information for the first slot to the interfered station and the interfering station when the first configuration information of the interfering station exists in the first slot; second transmitting means for, when there is no first configuration information of the interfering station in the first slot, configuring first configuration information for the interfering station for the first slot, and transmitting the first configuration information for the first slot and an activation time to the interfered station and the interfering station; Further includes:

[0226] In some embodiments, the measurement signal is a non-specific signal of the interfering station, and the measurement signal is a zero-power signal. When there are multiple interfering stations, the first positions of the measurement signals of each interfering station in the time domain resource and the frequency domain resource are different or the same, or the first positions of the measurement signals of some interfering stations of the interfered station in the time domain resource and the frequency domain resource are the same.

[0227] In some embodiments, the symbol indicated in the first position at the interfered station is the same as or different from the symbol occupied by the uplink demodulation reference signal.

[0228] In some embodiments, if the symbol indicated in the first position in the interfered station is the same as the symbol occupied by the uplink demodulation reference signal, other downlink data occupying the symbol indicated in the first position in the interfering station uses other symbols.

[0229] In some embodiments, when the symbol indicated at the first position at the interfered station is different from the symbol occupied by the uplink demodulation reference signal, the symbol indicated at the first position at the interfering station is different from the symbol occupied by other downlink data.

[0230] In some embodiments, the pattern of the measurement signal includes a first pattern and a second pattern; In the first pattern, the measurement signal occupies two consecutive symbols in the time domain resource and two consecutive resource elements in each physical resource block in the frequency domain resource; In the second pattern, the measurement signal occupies one symbol in the time domain resource and four consecutive resource elements in each physical resource block in the frequency domain resource.

[0231] In some embodiments, if the measurement signal is a non-specific signal of an interfering station and the measurement signal is a non-zero power signal, in the symbol occupied by the measurement signal in the time domain resource, every other first preset number of resource elements occupies a second preset number of consecutive resource elements.

[0232] In some embodiments, when there are multiple interfering stations, the configuration information of the measurement signal at the interfered station is a collection of the first configuration information of the multiple interfering stations.

[0233] In some embodiments, the first locations in the time domain resource and the frequency domain resource of the measurement signal of each interfering station are the same or different.

[0234] In some embodiments, if the bandwidth of the interfering station is greater than the bandwidth of the interfered station, The starting physical resource block of the measurement signal at the symbol indicated in the first position is the carrier starting point of the interfered station, and the size of the measurement signal is the bandwidth of the interfered station; or The number of the starting physical resource block of the measurement signal in the symbol indicated in the first position is greater than the carrier starting point of the interfered station and is the smallest value divisible by 4, and the size of the measurement signal is the bandwidth of the interfered station or is less than or equal to the bandwidth of the interfered station and is the largest value divisible by 4.

[0235] In some embodiments, if the bandwidth of the interfering station is less than or equal to the bandwidth of the interfered station, the measurement signal at the symbol indicated in the first position occupies all physical resource blocks within the bandwidth range of the interfering station.

[0236] In some embodiments, if the measurement signal is a specific signal, the measurement signal is a synchronization signal block SSB; If the measurement signal is a non-specific signal, the measurement signal is a CSI-IM signal or a CSI-RS.

[0237] In some embodiments, the measurement signal is in a downlink or flexible slot of the interfering station and in an uplink or flexible slot of the interfered station.

[0238] In the technical solution provided by the embodiments of the present application, an interfering station transmits a measurement signal to an interfered station, and the interfered station measures the measurement signal transmitted from the interfering station to estimate a CLI value from the interfering station to the interfered station. Based on the CLI value from the interfering station to the interfered station, a corresponding CLI suppression technique can be obtained, and the scheduling of time-frequency resources between base stations can be adjusted to suppress CLI in the F-TDD communication system, thereby reducing the impact of CLI on the performance of the 5G communication system.

[0239] Corresponding to the above-mentioned CLI measurement method, an embodiment of the present application further provides a base station, and as shown in Fig. 16, the base station includes a processor 161, a communication interface 162, a memory 163, and a communication bus 164. The processor 161, the communication interface 162, and the memory 163 communicate with each other via the communication bus 164. The memory 163 is for storing computer programs. The processor 161, when executing a program stored in the memory, is configured to realize the steps of the CLI measurement method applied to any of the interfered or interfering stations described above.

[0240] When the base station is an interfered station, the processor 161 executes a program stored in the memory to receive a measurement signal transmitted from the interfering station and measure a CLI value between the interfering station and the interfered station based on the measurement signal.

[0241] In some embodiments, when the processor 161 executes the program stored in the memory, it can further achieve the following: after measuring the CLI value, sending the CLI value or a CLI indicator to the controller, where the CLI indicator is for indicating whether a CLI exists between the interfered station and the interfering station; or, if the CLI value is greater than a preset CLI threshold, sending the CLI value or a CLI indicator to the controller, indicating that a CLI exists between the interfered station and the interfering station.

[0242] In some embodiments, when the processor 161 executes the program stored in the memory, it can further achieve receiving first configuration information of the interfering station sent from the controller, where the first configuration information indicates a first position in the time domain resource and the frequency domain resource of the measurement signal. Receiving a measurement signal transmitted from an interfering station includes: Determining a second location corresponding to the first location of the interfered station in the time domain resource and the frequency domain resource according to the carrier correspondence relationship between the interferer station and the interfered station; and receiving a measurement signal at a second location.

[0243] In some embodiments, if the measurement signal is a non-specific signal of an interfering station, when the processor 161 executes the program stored in the memory, the processor 161 can further realize activating the first configuration information after receiving the first configuration information.

[0244] In some embodiments, when the measurement signal is a non-specific signal of an interfering station, the processor 161 can further execute a program stored in the memory to, when detecting the presence of a CLI in the first slot, send a notification message to the controller, the notification message indicating the presence of a CLI in the first slot, receive an activation time of first configuration information for the first slot transmitted from the controller, or receive the first configuration information for the first slot and the activation time transmitted from the controller, and activate the first configuration information for the first slot when the activation time is reached.

[0245] In some embodiments, when the measurement signal is a non-specific signal of the interfering station, and the measurement signal is a zero-power signal, measuring a crosslink interference CLI value between the interfering station and the interfered station based on the measurement signal includes: When there are multiple interfering stations and the first positions of the measurement signals of the interfering stations in the time domain resource and the frequency domain resource are different, measuring the crosslink interference CLI values ​​between the interfering stations and the interfered station based on the measurement signals transmitted from the interfering stations respectively; When there are multiple interfering stations and the first positions of the measurement signals of some of the interfering stations in the time domain resource and the frequency domain resource are the same, based on the measurement signals transmitted from each interfering station, measure CLI values ​​between each interfering station and the interfered station that have different first positions, and a total CLI value between some of the interfering stations and the interfered station that have the same first position; When there are multiple interfering stations and the first positions of the measurement signals of the multiple interfering stations in the time domain resource and the frequency domain resource are the same, measuring a total CLI value between the multiple interfering stations and the interfered station based on the measurement signals transmitted from each interfering station; If there is one interfering station, measuring a CLI value between the interfering station and the interfered station based on a measurement signal transmitted from the interfering station; Includes:

[0246] In some embodiments, the symbol indicated in the first position at the interfered station is the same as or different from the symbol occupied by the uplink demodulation reference signal.

[0247] In some embodiments, if the symbol indicated in the first position in the interfered station is the same as the symbol occupied by the uplink demodulation reference signal, other downlink data occupying the symbol indicated in the first position in the interfering station uses other symbols.

[0248] In some embodiments, when the symbol indicated at the first position at the interfered station is different from the symbol occupied by the uplink demodulation reference signal, the symbol indicated at the first position at the interfering station is different from the symbol occupied by other downlink data.

[0249] In some embodiments, the pattern of the measurement signal includes a first pattern and a second pattern; In the first pattern, the measurement signal occupies two consecutive symbols in the time domain resource and two consecutive resource elements in each physical resource block in the frequency domain resource; In the second pattern, the measurement signal occupies one symbol in the time domain resource and four consecutive resource elements in each physical resource block in the frequency domain resource.

[0250] In some embodiments, when the measurement signal is a non-specific signal of the interfering station, and the measurement signal is a non-zero power signal, measuring a crosslink interference CLI value between the interfering station and the interfered station based on the measurement signal includes: The method includes measuring a crosslink interference CLI value between each interfering station and the interfered station based on a measurement signal transmitted from each interfering station.

[0251] In some embodiments, in symbols occupied by the measurement signal in the time domain resource, every other first preset number of resource elements occupies a second preset number of consecutive resource elements.

[0252] In some embodiments, when there are multiple interfering stations, the configuration information of the measurement signal at the interfered station is a collection of the first configuration information of the multiple interfering stations.

[0253] In some embodiments, the first locations in the time domain resource and the frequency domain resource of the measurement signal of each interfering station are the same or different.

[0254] In some embodiments, when the bandwidth of the interfering station is larger than the bandwidth of the interfered station, the starting physical resource block of the measurement signal at the symbol indicated in the first position is the carrier starting point of the interfered station and the size of the measurement signal is the bandwidth of the interfered station, or the number of the starting physical resource block of the measurement signal at the symbol indicated in the first position is larger than the carrier starting point of the interfered station and the smallest value divisible by 4, and the size of the measurement signal is the bandwidth of the interfered station, or the largest value smaller than the bandwidth of the interfered station and divisible by 4.

[0255] In some embodiments, if the bandwidth of the interfering station is less than or equal to the bandwidth of the interfered station, the measurement signal at the symbol indicated in the first position occupies all physical resource blocks within the bandwidth range of the interfering station.

[0256] In some embodiments, when the measurement signal is a non-zero power signal, the processor 161 can execute a program stored in the memory to further realize setting the location of the measurement signal of the interfered station in the time domain resource and frequency domain resource as an UL unavailable resource.

[0257] In some embodiments, when the measurement signal is a specific signal of the interfering station, the processor 161 executes a program stored in the memory to further realize sending second configuration information of the UL unavailable resource to the UE served by the interfered station, the second configuration information including: a position of a first frame in which the measurement signal is located; configuration information of the time domain resource and the frequency domain resource of the measurement signal; and scheduling information, wherein the scheduling information is for instructing the UE to transmit other uplink data using physical resource blocks or symbols other than the UL unavailable resource, or the scheduling information is for instructing the UE to rate-match the other uplink data around the UL unavailable resource and then transmit the rate-matched other uplink data.

[0258] In some embodiments, when the measurement signal is a non-specific signal of an interfering station, when the processor 161 executes the program stored in the memory, it can further realize the following: configuring rate matching parameters for a user equipment (UE) served by the interfered station within a bandwidth portion (BWP) range of the user equipment (UE) served by the interfered station; and sending third configuration information of UL unavailable resources to the UE, where the third configuration information includes configuration information on time domain resources and frequency domain resources of the measurement signal and the rate matching parameters.

[0259] In some embodiments, if the measurement signal is a specific signal, the measurement signal is an SSB, and if the measurement signal is a non-specific signal, the measurement signal is a CSI-IM signal or a CSI-RS.

[0260] In some embodiments, the measurement signal is in a downlink or flexible slot of the interfering station and in an uplink or flexible slot of the interfered station.

[0261] When the base station is an interfering station, the processor 161 executes the program stored in the memory to obtain first configuration information of a measurement signal, the first configuration information indicating a first position of the measurement signal in time domain resources and frequency domain resources, and transmit the measurement signal to the interfered station at the first position.

[0262] In some embodiments, execution of a program stored in the memory by the processor 161 may further include generating first configuration information and transmitting the first configuration information to the controller.

[0263] In some embodiments, when the measured signal is a non-specific signal of an interfering station, the processor 161 can further execute the program stored in the memory to generate the first configuration information and then activate the first configuration information.

[0264] In some embodiments, when the measurement signal is a non-specific signal of an interfering station, the processor 161 can execute a program stored in the memory to further receive an activation time of the first configuration information for the first slot transmitted from the controller, or receive the first configuration information for the first slot and the activation time transmitted from the controller, and activate the first configuration information for the first slot when the activation time is reached.

[0265] In some embodiments, when the measurement signal is a non-specific signal of the interfering station and the measurement signal is a zero-power signal, the first positions of the measurement signals of each interfering station of the interfered station in the time domain resource and the frequency domain resource are different or the same, or the first positions of the measurement signals of some interfering stations of the interfered station in the time domain resource and the frequency domain resource are the same.

[0266] In some embodiments, the symbol indicated in the first position at the interfered station is the same as or different from the symbol occupied by the uplink demodulation reference signal.

[0267] In some embodiments, if the symbol indicated in the first position in the interfered station is the same as the symbol occupied by the uplink demodulation reference signal, other downlink data occupying the symbol indicated in the first position in the interfering station uses other symbols.

[0268] In some embodiments, when the symbol indicated at the first position at the interfered station is different from the symbol occupied by the uplink demodulation reference signal, the symbol indicated at the first position at the interfering station is different from the symbol occupied by other downlink data.

[0269] In some embodiments, the pattern of the measurement signal includes a first pattern and a second pattern; In the first pattern, the measurement signal occupies two consecutive symbols in the time domain resource and two consecutive resource elements in each physical resource block in the frequency domain resource; In the second pattern, the measurement signal occupies one symbol in the time domain resource and four consecutive resource elements in each physical resource block in the frequency domain resource.

[0270] In some embodiments, when the measurement signal is a non-specific signal of an interfering station and the measurement signal is a non-zero power signal, the measurement signal occupies a second preset number of consecutive resource elements every other first preset number of resource elements in the symbol occupied by the measurement signal in the time domain resource.

[0271] In some embodiments, when there are multiple interfering stations, the configuration information of the measurement signal at the interfered station is a collection of the first configuration information of the multiple interfering stations.

[0272] In some embodiments, the first locations in the time domain resource and the frequency domain resource of the measurement signal of each interfering station are the same or different.

[0273] In some embodiments, when the bandwidth of the interfering station is larger than the bandwidth of the interfered station, the starting physical resource block of the measurement signal at the symbol indicated in the first position is the carrier starting point of the interfered station and the size of the measurement signal is the bandwidth of the interfered station, or the number of the starting physical resource block of the measurement signal at the symbol indicated in the first position is larger than the carrier starting point of the interfered station and the smallest value divisible by 4, and the size of the measurement signal is the bandwidth of the interfered station, or the largest value smaller than the bandwidth of the interfered station and divisible by 4.

[0274] In some embodiments, if the bandwidth of the interfering station is less than or equal to the bandwidth of the interfered station, the measurement signal at the symbol indicated in the first position occupies all physical resource blocks within the bandwidth range of the interfering station.

[0275] In some embodiments, if the measurement signal is a specific signal, the measurement signal is an SSB, and if the measurement signal is a non-specific signal, the measurement signal is a CSI-IM signal or a CSI-RS.

[0276] In some embodiments, the measurement signal is in a downlink or flexible slot of the interfering station and in an uplink or flexible slot of the interfered station.

[0277] Corresponding to the above-described CLI measurement method, an embodiment of the present application further provides a controller, and as shown in Fig. 17, the controller includes a processor 171, a communication interface 172, a memory 173, and a communication bus 174. The processor 171, the communication interface 172, and the memory 173 communicate with each other via the communication bus 174. The memory 173 is for storing computer programs. The processor 171, when executing a program stored in the memory, is for realizing the steps of the CLI measurement method applied to any of the above controllers.

[0278] In an embodiment of the present application, when the processor 171 executes a program stored in the memory, the processor 171 obtains first configuration information of the interfering station, where the first configuration information indicates a first position of a measurement signal in a time domain resource and a frequency domain resource, and the measurement signal is for measuring a CLI value; and transmits the first configuration information of the interfering station to the interfered station.

[0279] In some embodiments, when the processor 171 executes the program stored in the memory, the following can be further achieved: receiving a CLI value or a CLI indicator measured by the interfered station based on the first configuration information, the CLI indicator being for indicating whether a CLI exists between the interfered station and the interfering station; and adjusting scheduling of time-frequency resources between the interfering station and the interfered station according to the CLI value or the CLI indicator.

[0280] In some embodiments, obtaining the first configuration information of the interfering station includes receiving the first configuration information transmitted from the interfering station, and configuring the first configuration information for the interfering station if the first configuration information is not received.

[0281] In some embodiments, when the measurement signal is a non-specific signal of the interfering station, the processor 171 executing the program stored in the memory can further achieve the following: receiving a notification message sent from the interfered station, where the notification message indicates that a CLI exists in the first slot; if first configuration information of the interfering station exists in the first slot, transmitting an activation time of the first configuration information for the first slot to the interfered station and the interfering station; if first configuration information of the interfering station does not exist in the first slot, configuring first configuration information for the first slot for the interfering station and transmitting the first configuration information and the activation time for the first slot to the interfered station and the interfering station.

[0282] In some embodiments, the measurement signal is a non-specific signal of the interfering station, and the measurement signal is a zero-power signal. When there are multiple interfering stations, the first positions of the measurement signals of each interfering station in the time domain resource and the frequency domain resource are different or the same, or the first positions of the measurement signals of some interfering stations of the interfered station in the time domain resource and the frequency domain resource are the same.

[0283] In some embodiments, the symbol indicated in the first position at the interfered station is the same as or different from the symbol occupied by the uplink demodulation reference signal.

[0284] In some embodiments, if the symbol indicated in the first position in the interfered station is the same as the symbol occupied by the uplink demodulation reference signal, other downlink data occupying the symbol indicated in the first position in the interfering station uses other symbols.

[0285] In some embodiments, when the symbol indicated at the first position at the interfered station is different from the symbol occupied by the uplink demodulation reference signal, the symbol indicated at the first position at the interfering station is different from the symbol occupied by other downlink data.

[0286] In some embodiments, the pattern of the measurement signal includes a first pattern and a second pattern; In the first pattern, the measurement signal occupies two consecutive symbols in the time domain resource and two consecutive resource elements in each physical resource block in the frequency domain resource; In the second pattern, the measurement signal occupies one symbol in the time domain resource and four consecutive resource elements in each physical resource block in the frequency domain resource.

[0287] In some embodiments, if the measurement signal is a non-specific signal of an interfering station and the measurement signal is a non-zero power signal, in the symbol occupied by the measurement signal in the time domain resource, every other first preset number of resource elements occupies a second preset number of consecutive resource elements.

[0288] In some embodiments, when there are multiple interfering stations, the configuration information of the measurement signal at the interfered station is a collection of the first configuration information of the multiple interfering stations.

[0289] In some embodiments, the first locations in the time domain resource and the frequency domain resource of the measurement signal of each interfering station are the same or different.

[0290] In some embodiments, when the bandwidth of the interfering station is larger than the bandwidth of the interfered station, the starting physical resource block of the measurement signal at the symbol indicated in the first position is the carrier starting point of the interfered station and the size of the measurement signal is the bandwidth of the interfered station, or the number of the starting physical resource block of the measurement signal at the symbol indicated in the first position is larger than the carrier starting point of the interfered station and the smallest value divisible by 4, and the size of the measurement signal is the bandwidth of the interfered station, or the largest value smaller than the bandwidth of the interfered station and divisible by 4.

[0291] In some embodiments, if the bandwidth of the interfering station is less than or equal to the bandwidth of the interfered station, the measurement signal at the symbol indicated in the first position occupies all physical resource blocks within the bandwidth range of the interfering station.

[0292] In some embodiments, if the measurement signal is a specific signal, the measurement signal is an SSB, and if the measurement signal is a non-specific signal, the measurement signal is a CSI-IM signal or a CSI-RS.

[0293] In some embodiments, the measurement signal is in a downlink or flexible slot of the interfering station and in an uplink or flexible slot of the interfered station.

[0294] The communication bus may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The communication bus is divided into an address bus, a data bus, a control bus, etc. For convenience of illustration, only one thick line is shown in the figure, but this does not mean that there is only one bus or only one type of bus.

[0295] The communication interface is for communication between the base station or controller and other devices.

[0296] The memory may include random access memory (RAM) and non-volatile memory (NVM), such as at least one magnetic disk memory. Optionally, the memory may also include at least one storage device located remotely from the processor.

[0297] The processor may be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc., or may be a Digital Signal Processing (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component.

[0298] An embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon, the computer program implementing the steps of any one of the above methods for measuring CLI when executed by a processor.

[0299] In another embodiment provided by the present application, there is further provided a computer program product including instructions, which, when executed on a computer, cause the computer to perform the steps of any one of the CLI measurement methods in the above embodiments.

[0300] The above embodiments can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, they can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer commands. When the computer program commands are loaded into a computer and executed, the processes or functions described in the embodiments of the present application are implemented in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer commands may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer commands may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optics, digital subscriber line (DSL)) or wireless (e.g., infrared, radio, microwave, etc.). The computer-readable storage medium may be any available medium accessible by a computer, or may be a data storage device, including a server, data center, etc., in which one or more available media are integrated. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid state disks (SSDs)).

[0301] It should be noted that, in this context, the use of relational terms such as "first" and "second" is intended merely to distinguish one entity or operation from another and does not require or imply any actual relationship or order between those entities or operations. Furthermore, the terms "comprise," "include," or any other variant thereof is intended to cover the non-exclusive "comprise," such that a process, method, article, or device that includes a set of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent in such process, method, article, or device. Absent further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in a process, method, article, or device that includes the set of elements.

[0302] The embodiments in this specification are described in a related manner, and identical or similar parts between the embodiments may be cross-referenced. The main points to be described in each embodiment are the differences from other embodiments. In particular, the device embodiments, base station embodiments, controller embodiments, computer-readable storage medium embodiments, and program product embodiments are basically similar to the method embodiments, and therefore will be briefly described. For relevant points, please refer to the description of the method embodiments.

[0303] The above description is merely a preferred embodiment of the present application, and is not intended to limit the scope of protection of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application are all included in the scope of protection of the present application.

Claims

1. A crosslink interference measurement method applied to an interfered station, comprising: receiving a measurement signal transmitted from an interfering station; measuring a crosslink interference (CLI) value between the interfering station and the interfered station based on the measurement signal; After measuring the CLI value, the cross-link interference measurement method comprises: sending the CLI value or CLI indicator to a controller, the CLI indicator being for indicating whether a CLI exists between the interfered station and the interfering station; or If the CLI value is greater than a preset CLI threshold, transmitting the CLI value or a CLI indicator to a controller indicating that a CLI exists between the interfered station and the interfering station. A cross-link interference measurement method characterized by:

2. 2. The cross-link interferometry method of claim 1, comprising: receiving first configuration information of the interfering station transmitted from a controller, the first configuration information including indicating a first location of the measurement signal in time domain resources and frequency domain resources; receiving a measurement signal transmitted from the interfering station, determining a second location corresponding to the first location in the time domain resource and the frequency domain resource of the interfered station according to a carrier correspondence relationship between the interferer station and the interfered station; receiving a measurement signal at the second location; Including, A cross-link interference measurement method characterized by:

3. 3. The cross-link interferometry method of claim 2, further comprising: If the measurement signal is a non-specific signal of the interfering station, after receiving the first configuration information, the crosslink interference measurement method further comprises: further comprising activating the first configuration information; Or, When the measurement signal is a non-specific signal of the interfering station, the crosslink interference measurement method includes: sending a notification message to the controller when detecting the presence of a CLI in the first slot, the notification message indicating the presence of a CLI in the first slot; receiving an activation time of first configuration information for the first slot transmitted from the controller, or receiving first configuration information and an activation time for the first slot transmitted from the controller; activating first configuration information for the first slot when the activation time is reached; further comprising: A cross-link interference measurement method characterized by:

4. 3. The cross-link interferometry method of claim 2, further comprising: When the measurement signal is a non-specific signal of the interfering station, and the measurement signal is a zero-power signal, measuring a crosslink interference CLI value between the interfering station and the interfered station based on the measurement signal includes: When there are a plurality of interfering stations and the first positions of the measurement signals of the interfering stations in the time domain resource and the frequency domain resource are different, measuring a crosslink interference CLI value between each interfering station and the interfered station based on the measurement signals transmitted from each interfering station; When there are a plurality of interfering stations and the first positions of the measurement signals of some of the interfering stations in the time domain resource and the frequency domain resource are the same, based on the measurement signals transmitted from each interfering station, measure a CLI value between each interfering station having a different first position and the interfered station, and a total CLI value between some of the interfering stations having the same first position and the interfered station; When there are a plurality of interfering stations and the first positions of the measurement signals of the plurality of interfering stations in the time domain resource and the frequency domain resource are the same, measuring a total CLI value between the plurality of interfering stations and the interfered station based on the measurement signals transmitted from each interfering station; If there is one interfering station, measuring a CLI value between the interfering station and the interfered station based on a measurement signal transmitted from the interfering station; Including, A cross-link interference measurement method characterized by:

5. 3. The cross-link interferometry method of claim 2, further comprising: When the measurement signal is a non-specific signal of the interfering station, and the measurement signal is a non-zero power signal, measuring a crosslink interference CLI value between the interfering station and the interfered station based on the measurement signal includes: measuring a crosslink interference CLI value between each interfering station and the interfered station based on a measurement signal transmitted from each interfering station; The crosslink interference measurement method further includes: setting a location of the measurement signal of the interfered station in the time domain resource and the frequency domain resource as an uplink UL unavailable resource; In symbols occupied by the measurement signal in the time domain resource, the measurement signal occupies a second preset number of consecutive resource elements every other first preset number of resource elements; A cross-link interference measurement method characterized by:

6. 4. The cross-link interferometry method of claim 3, further comprising: When there are a plurality of interfering stations, the configuration information of the measurement signal in the interfered station is a set of first configuration information of the plurality of interfering stations. A cross-link interference measurement method characterized by:

7. 4. The cross-link interferometry method of claim 3, further comprising: If the bandwidth of the interfering station is equal to or smaller than the bandwidth of the interfered station, the measurement signal at the symbol indicated at the first position occupies all physical resource blocks within the bandwidth range of the interfering station. A cross-link interference measurement method characterized by:

8. 6. A cross-link interferometry method according to claim 5, comprising: When the measurement signal is a specific signal of the interfering station, the crosslink interference measurement method includes: transmitting second configuration information of the UL unavailable resources to a user equipment (UE) served by the interfered station, the second configuration information including a position of a first frame in which the measurement signal is located, configuration information of time domain resources and frequency domain resources of the measurement signal, and scheduling information; The scheduling information instructs the UE to transmit other uplink data using physical resource blocks or symbols other than the UL unavailable resources, or The scheduling information instructs the UE to perform rate matching on other uplink data around the UL unavailable resource and then transmit the rate-matched other uplink data. A cross-link interference measurement method characterized by:

9. 6. A cross-link interferometry method according to claim 5, comprising: When the measurement signal is a non-specific signal of the interfering station, the crosslink interference measurement method includes: configuring rate matching parameters for a user equipment (UE) served by the interfered station within a bandwidth portion (BWP) range of the user equipment (UE) served by the interfered station; transmitting third configuration information of the UL unavailable resource to the UE, the third configuration information including configuration information of time domain resources and frequency domain resources of the measurement signal and the rate matching parameter. A cross-link interference measurement method characterized by:

10. 2. The cross-link interferometry method of claim 1, comprising: If the measurement signal is a specific signal, the measurement signal is a synchronization signal block (SSB); If the measurement signal is a non-specific signal, the measurement signal is a channel state information interference measurement (CSI-IM) signal or a channel state information reference signal (CSI-RS); the measurement signal is in a downlink slot or a flexible slot of the interfering station and in an uplink slot or a flexible slot of the interfered station; A cross-link interference measurement method characterized by:

11. A crosslink interference measurement method applied to an interfering station, comprising: obtaining first configuration information of a measurement signal, the first configuration information indicating a first position of the measurement signal in time domain resources and frequency domain resources; transmitting a measurement signal to the interfered station at the first location; generating the first configuration information; transmitting the first configuration information to a controller; When the measurement signal is a non-specific signal of the interfering station, the crosslink interference measurement method includes: After generating the first configuration information, further comprising activating the first configuration information. A cross-link interference measurement method characterized by:

12. 12. A cross-link interferometry method according to claim 11, comprising: When the measurement signal is a non-specific signal of the interfering station and the measurement signal is a zero-power signal, the first positions of the measurement signal of each interfering station of the interfered station in the time domain resource and the frequency domain resource are different or the same, or the first positions of the measurement signal of some interfering stations of the interfered station in the time domain resource and the frequency domain resource are the same; The symbol indicated at the first position in the interfered station is the same as or different from the symbol occupied by the uplink demodulation reference signal; If the symbol indicated at the first position in the interfered station is the same as the symbol occupied by the uplink demodulation reference signal, other downlink data occupying the symbol indicated at the first position in the interfering station uses other symbols; wherein, when the symbol indicated at the first position in the interfered station is different from a symbol occupied by an uplink demodulation reference signal, the symbol indicated at the first position in the interfering station is different from a symbol occupied by other downlink data.

13. 13. A cross-link interferometry method according to claim 12, comprising: the pattern of the measurement signal includes a first pattern and a second pattern; In the first pattern, the measurement signal occupies two consecutive symbols in a time domain resource and two consecutive resource elements in each physical resource block in a frequency domain resource; In the second pattern, the measurement signal occupies one symbol in the time domain resource and occupies four consecutive resource elements in each physical resource block in the frequency domain resource. A cross-link interference measurement method characterized by:

14. 12. A cross-link interferometry method according to claim 11, comprising: When the measurement signal is a non-specific signal of the interfering station and the measurement signal is a non-zero power signal, the measurement signal occupies a second preset number of consecutive resource elements every other first preset number of resource elements in a symbol that the measurement signal occupies in a time domain resource; A cross-link interference measurement method characterized by:

15. 12. A cross-link interferometry method according to claim 11, comprising: If the bandwidth of the interfering station is greater than the bandwidth of the interfered station, The starting physical resource block of the measurement signal at the symbol indicated by the first position is the carrier starting point of the interfered station, and the size of the measurement signal is the bandwidth of the interfered station; or the number of the starting physical resource block of the measurement signal in the symbol indicated at the first position is greater than the carrier starting point of the interfered station and is the smallest value divisible by 4, the size of the measurement signal is the bandwidth of the interfered station or is less than or equal to the bandwidth of the interfered station and is the largest value divisible by 4; If the bandwidth of the interfering station is equal to or smaller than the bandwidth of the interfered station, the measurement signal at the symbol indicated at the first position occupies all physical resource blocks within the bandwidth range of the interfering station. A cross-link interference measurement method characterized by:

16. 12. A cross-link interferometry method according to claim 11, comprising: If the measurement signal is a specific signal, the measurement signal is a synchronization signal block (SSB); If the measurement signal is a non-specific signal, the measurement signal is a channel state information interference measurement (CSI-IM) signal or a channel state information reference signal (CSI-RS); the measurement signal is in a downlink slot or a flexible slot of the interfering station and in an uplink slot or a flexible slot of the interfered station; A cross-link interference measurement method characterized by:

17. A cross-link interference measurement method applied to a controller, comprising: Obtaining first configuration information of an interfering station, the first configuration information indicating a first position of a measurement signal in a time domain resource and a frequency domain resource, the measurement signal being for measuring a crosslink interference (CLI) value; transmitting first configuration information of the interfering station to the interfered station; receiving a CLI value or a CLI indicator measured by the interfered station based on the first configuration information, the CLI indicator being for indicating whether a CLI exists between the interfered station and the interfering station; and adjusting scheduling of time-frequency resources between the interfering station and the interfered station according to the CLI value or CLI indicator. A cross-link interference measurement method characterized by:

18. 18. A cross-link interferometry method according to claim 17, comprising: Obtaining first configuration information of the interfering station includes: receiving first configuration information transmitted from an interfering station; if the first configuration information is not received, configuring first configuration information for the interfering station; When the measurement signal is a non-specific signal of the interfering station, the crosslink interference measurement method includes: receiving a notification message sent from the interfered station, the notification message indicating the presence of a CLI in a first slot; If first configuration information of the interfering station exists in the first slot, transmitting an activation time of the first configuration information for the first slot to the interfered station and the interfering station; If first configuration information of the interfering station does not exist in the first slot, configuring first configuration information for the interfering station for the first slot, and transmitting the first configuration information for the first slot and an activation time to the interfered station and the interfering station; Or, the measurement signal is a non-specific signal of the interfering station, and the measurement signal is a zero-power signal; when there are multiple interfering stations, the first positions of the measurement signals of the interfering stations in the time domain resource and the frequency domain resource are different or the same; or the first positions of the measurement signals of some interfering stations of the interfered station in the time domain resource and the frequency domain resource are the same; A cross-link interference measurement method characterized by:

19. 20. A cross-link interferometry method according to claim 18, comprising: If the bandwidth of the interfering station is equal to or smaller than the bandwidth of the interfered station, the measurement signal at the symbol indicated at the first position occupies all physical resource blocks within the bandwidth range of the interfering station. A cross-link interference measurement method characterized by:

20. 18. A cross-link interferometry method according to claim 17, comprising: If the measurement signal is a specific signal, the measurement signal is a synchronization signal block (SSB); If the measurement signal is a non-specific signal, the measurement signal is a channel state information interference measurement (CSI-IM) signal or a channel state information reference signal (CSI-RS); the measurement signal is in a downlink slot or a flexible slot of the interfering station and in an uplink slot or a flexible slot of the interfered station; A cross-link interference measurement method characterized by:

21. A crosslink interference measurement device applied to an interfered station, comprising: a first receiving means for receiving a measurement signal transmitted from an interfering station; a measuring means for measuring a crosslink interference CLI value between the interfering station and the interfered station based on the measurement signal; a first transmitting means for transmitting a CLI value or a CLI indicator to a controller after measuring the CLI value, the CLI indicator being for indicating whether a CLI exists between the interfered station and the interfering station; or first transmitting means for transmitting, to a controller, the CLI value or a CLI indicator indicating that a CLI exists between the interfered station and the interfering station, if the CLI value is greater than a preset CLI threshold; a second receiving means for receiving first configuration information of the interfering station transmitted from a controller, the first configuration information indicating a first position of the measurement signal in time domain resources and frequency domain resources; Specifically, the first receiving means includes: determining a second location corresponding to the first location in the time domain resource and the frequency domain resource of the interfered station according to a carrier correspondence relationship between the interferer station and the interfered station; receiving a measurement signal at the second location; Used for A crosslink interference measurement device characterized by:

22. 22. The cross-link interferometry measurement apparatus of claim 21, If the measurement signal is a non-specific signal of the interfering station, after receiving the first configuration information, the crosslink interference measurement device: further comprising first activation means for activating the first configuration information; Or, When the measurement signal is a non-specific signal of the interfering station, the crosslink interference measurement device: second transmitting means for transmitting a notification message to the controller when detecting the presence of a CLI in the first slot, the notification message indicating the presence of a CLI in the first slot; a third receiving means for receiving an activation time of first configuration information for the first slot transmitted from the controller, or for receiving first configuration information and an activation time for the first slot transmitted from the controller; and a second activation means for activating the first configuration information for the first slot when the activation time is reached, or when the measurement signal is a non-specific signal of the interfering station and the measurement signal is a zero power signal, the measurement means specifically: When there are a plurality of interfering stations and the first positions of the measurement signals of the interfering stations in the time domain resource and the frequency domain resource are different, measuring a crosslink interference CLI value between each interfering station and the interfered station based on the measurement signals transmitted from each interfering station; When there are a plurality of interfering stations and the first positions of the measurement signals of some of the interfering stations in the time domain resource and the frequency domain resource are the same, based on the measurement signals transmitted from each interfering station, measure a CLI value between each interfering station having a different first position and the interfered station, and a total CLI value between some of the interfering stations having the same first position and the interfered station; When there are a plurality of interfering stations and the first positions of the measurement signals of the plurality of interfering stations in the time domain resource and the frequency domain resource are the same, measuring a total CLI value between the plurality of interfering stations and the interfered station based on the measurement signals transmitted from each interfering station; If there is one interfering station, measuring a CLI value between the interfering station and the interfered station based on a measurement signal transmitted from the interfering station; Used for A crosslink interference measurement device characterized by:

23. 22. The cross-link interferometry measurement apparatus of claim 21, When the measurement signal is a non-specific signal of the interfering station, and the measurement signal is a non-zero power signal, the measurement means specifically: The crosslink interference (CLI) measurement unit is used to measure a crosslink interference (CLI) value between each interfering station and the interfered station based on a measurement signal transmitted from each interfering station; If the measurement signal is a non-zero power signal, the crosslink interference measurement device: The method further includes setting means for setting a location of the measurement signal of the interfered station in the time domain resource and the frequency domain resource as an uplink UL unavailable resource; In symbols occupied by the measurement signal in the time domain resource, the measurement signal occupies a second preset number of consecutive resource elements every other first preset number of resource elements; A crosslink interference measurement device characterized by:

24. 23. The cross-link interferometry measurement apparatus of claim 22, When there are a plurality of interfering stations, the configuration information of the measurement signal in the interfered station is a set of first configuration information of the plurality of interfering stations. A crosslink interference measurement device characterized by:

25. 23. The cross-link interferometry measurement apparatus of claim 22, If the bandwidth of the interfering station is equal to or smaller than the bandwidth of the interfered station, the measurement signal at the symbol indicated at the first position occupies all physical resource blocks within the bandwidth range of the interfering station. A crosslink interference measurement device characterized by:

26. 22. The cross-link interferometry measurement apparatus of claim 21, When the measurement signal is a specific signal of the interfering station, the crosslink interference measurement device: and a third transmitting means for transmitting second configuration information of the UL unavailable resources to a user equipment (UE) served by the interfered station, the second configuration information including a position of a first frame in which the measurement signal is located, configuration information of time domain resources and frequency domain resources of the measurement signal, and scheduling information; The scheduling information instructs the UE to transmit other uplink data using physical resource blocks or symbols other than the UL unavailable resources, or the scheduling information instructs the UE to perform rate matching on other uplink data around the UL unavailable resource and then transmit the rate-matched other uplink data; or, if the measurement signal is a non-specific signal of the interfering station, the crosslink interference measurement device: a setting means for configuring rate matching parameters for a user equipment (UE) served by the interfered station within a bandwidth (BWP) range of the user equipment (UE) served by the interfered station; and a fourth transmitting means for transmitting third configuration information of the UL unavailable resource to the UE, the third configuration information including configuration information in time domain resources and frequency domain resources of the measurement signal and the rate matching parameter. A crosslink interference measurement device characterized by:

27. 22. The cross-link interferometry measurement apparatus of claim 21, If the measurement signal is a specific signal, the measurement signal is a synchronization signal block (SSB); If the measurement signal is a non-specific signal, the measurement signal is a channel state information interference measurement (CSI-IM) signal or a channel state information reference signal (CSI-RS); the measurement signal is in a downlink slot or a flexible slot of the interfering station and in an uplink slot or a flexible slot of the interfered station; A crosslink interference measurement device characterized by:

28. A crosslink interference measurement device applied to an interfering station, comprising: obtaining means for obtaining first configuration information of a measurement signal, the first configuration information indicating a first position of the measurement signal in time domain resources and frequency domain resources; first transmitting means for transmitting a measurement signal to the interfered station at the first location; a generating means for generating the first configuration information; second transmitting means for transmitting the first configuration information to a controller; When the measurement signal is a non-specific signal of the interfering station, the crosslink interference measurement device: a first activation means for activating the first configuration information after generating the first configuration information; A crosslink interference measurement device characterized by:

29. 29. The cross-link interferometry apparatus of claim 28, When the measurement signal is a non-specific signal of the interfering station and the measurement signal is a zero-power signal, the first positions of the measurement signal of each interfering station of the interfered station in the time domain resource and the frequency domain resource are different or the same, or the first positions of the measurement signal of some interfering stations of the interfered station in the time domain resource and the frequency domain resource are the same; The symbol indicated at the first position in the interfered station is the same as or different from the symbol occupied by the uplink demodulation reference signal; If the symbol indicated at the first position in the interfered station is the same as the symbol occupied by the uplink demodulation reference signal, other downlink data occupying the symbol indicated at the first position in the interfering station uses other symbols; When the symbol indicated at the first position in the interfered station is different from the symbol occupied by an uplink demodulation reference signal, the symbol indicated at the first position in the interfering station is different from the symbol occupied by other downlink data. A crosslink interference measurement device characterized by:

30. 29. The cross-link interferometry apparatus of claim 28, If the bandwidth of the interfering station is greater than the bandwidth of the interfered station, The starting physical resource block of the measurement signal at the symbol indicated by the first position is the carrier starting point of the interfered station, and the size of the measurement signal is the bandwidth of the interfered station; or the number of the starting physical resource block of the measurement signal in the symbol indicated at the first position is greater than the carrier starting point of the interfered station and is the smallest value divisible by 4, the size of the measurement signal is the bandwidth of the interfered station or is less than or equal to the bandwidth of the interfered station and is the largest value divisible by 4; If the bandwidth of the interfering station is equal to or smaller than the bandwidth of the interfered station, the measurement signal at the symbol indicated at the first position occupies all physical resource blocks within the bandwidth range of the interfering station. A crosslink interference measurement device characterized by:

31. 29. The cross-link interferometry apparatus of claim 28, If the measurement signal is a specific signal, the measurement signal is a synchronization signal block (SSB); If the measurement signal is a non-specific signal, the measurement signal is a channel state information interference measurement (CSI-IM) signal or a channel state information reference signal (CSI-RS); the measurement signal is in a downlink slot or a flexible slot of the interfering station and in an uplink slot or a flexible slot of the interfered station; A crosslink interference measurement device characterized by:

32. A cross-link interference measurement device applied to a controller, comprising: an acquiring means for acquiring first configuration information of an interfering station, the first configuration information indicating a first position of a measurement signal in a time domain resource and a frequency domain resource, the measurement signal being for measuring a cross link interference (CLI) value; a first transmitting means for transmitting first configuration information of the interfering station to the interfered station; a first receiving means for receiving a CLI value or a CLI indicator measured by the interfered station based on the first configuration information, the CLI indicator indicating whether a CLI exists between the interfered station and the interfering station; and adjusting means for adjusting scheduling of time-frequency resources between the interfering station and the interfered station according to the CLI value or CLI indicator. A crosslink interference measurement device characterized by:

33. 33. The cross-link interferometry apparatus of claim 32, Specifically, the acquisition means: receiving first configuration information transmitted from an interfering station; configuring first configuration information for the interfering station if the first configuration information is not received; Used in When the measurement signal is a non-specific signal of the interfering station, the crosslink interference measurement device: second receiving means for receiving a notification message transmitted from the interfered station, the notification message indicating the presence of a CLI in a first slot; a first transmitting means for transmitting an activation time of the first configuration information for the first slot to the interfered station and the interfering station when the first configuration information of the interfering station exists in the first slot; and second transmitting means for, when first configuration information of the interfering station does not exist in the first slot, configuring first configuration information for the interfering station for the first slot, and transmitting the first configuration information for the first slot and an activation time to the interfered station and the interfering station. A crosslink interference measurement device characterized by:

34. 33. The cross-link interferometry apparatus of claim 32, the measurement signal is a non-specific signal of the interfering station, and the measurement signal is a zero-power signal; when there are multiple interfering stations, the first positions of the measurement signals of the interfering stations in the time domain resource and the frequency domain resource are different or the same; or the first positions of the measurement signals of some interfering stations of the interfered station in the time domain resource and the frequency domain resource are the same; A crosslink interference measurement device characterized by:

35. 35. The cross-link interferometry apparatus of claim 34, The symbol indicated at the first position in the interfered station is the same as or different from the symbol occupied by the uplink demodulation reference signal; A crosslink interference measurement device characterized by:

36. 33. The cross-link interferometry apparatus of claim 32, If the measurement signal is a specific signal, the measurement signal is a synchronization signal block (SSB); If the measurement signal is a non-specific signal, the measurement signal is a channel state information interference measurement (CSI-IM) signal or a channel state information reference signal (CSI-RS); the measurement signal is in a downlink slot or a flexible slot of the interfering station and in an uplink slot or a flexible slot of the interfered station; A crosslink interference measurement device characterized by:

37. A base station including a processor, a communication interface, a memory, and a communication bus, the processor, the communication interface, and the memory communicate with each other via the communication bus; the memory is for storing a computer program; When the processor executes the program stored in the memory, the processor is configured to realize the steps of the cross-link interference measurement method according to any one of claims 1 to 10 or any one of claims 11 to 16. A base station characterized by:

38. A controller including a processor, a communication interface, a memory, and a communication bus, the processor, the communication interface, and the memory communicate with each other via the communication bus; the memory is for storing a computer program; When the processor executes the program stored in the memory, the processor performs the steps of the cross-link interference measurement method according to any one of claims 17 to 20. A controller characterized by:

39. A computer-readable storage medium on which a computer program is stored, When the computer program is executed by a processor, it is for implementing the steps of the cross link interference measurement method according to any one of claims 1 to 10, the cross link interference measurement method according to any one of claims 11 to 16, or the cross link interference measurement method according to any one of claims 17 to 20. A computer-readable storage medium comprising:

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