L1 CLI measurement method, terminal, and network side device

Abstract

The present application relates to the technical field of communications, and discloses an L1 CLI measurement method, a terminal, and a network side device. The L1 CLI measurement method in embodiments of the present application comprises: a terminal performs layer 1 cross link interference (L1 CLI) measurement on the basis of first timing, wherein the first timing is downlink reference timing or uplink reference timing, or is determined by the terminal itself, or is determined by the terminal on the basis of a configuration or indication from a network side device; and the L1 CLI measurement occupies a channel state information (CSI) processing unit (CPU) of the terminal.

Description

L1 CLI measurement methods, terminals, and network-side equipment

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202410953511.9, filed on July 16, 2024, entitled "L1 CLI Measurement Method, Terminal and Network Side Device", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of communication technology, specifically relating to an L1 CLI measurement method, terminal, and network-side equipment. Background Technology

[0004] In relevant communication systems, to more flexibly utilize limited spectrum resources, dynamically match service demands, and improve resource utilization and transmission performance, a flexible duplexing method based on non-overlapping sub-bands (SBFD) has been proposed. In SBFD systems, since adjacent cells can be configured with the same SBFD configuration, or one cell is a traditional Time Division Duplex (TDD) system while another is an SBFD system, cross-link interference (CLI) can occur between different user equipment (UEs) within / between cells. For example, while UE1 is transmitting uplink signals, UE2 is receiving downlink signals; UE2 will receive the signal transmitted by UE1, thus causing interference. To identify or handle the aforementioned UE-to-UE CLI, UE-to-UE interference measurement is required.

[0005] In related technologies, terminals can perform Layer 1 (L1) CLI measurements and report data based on the existing Channel State Information (CSI) framework. However, since the reference signal CLI-RS corresponding to the L1 CLI measurement is transmitted by other terminals, the timing of CLI-RS reception is uncertain. To facilitate L1 CLI measurements, the timing used for L1 CLI measurements needs to be determined. Furthermore, since L1 CLI measurements require the use of the terminal's processing unit, the specific processing unit used for L1 CLI measurements also needs to be determined. Summary of the Invention

[0006] This application provides an L1 CLI measurement method, a terminal, and a network-side device, which can solve the problem of how to determine the timing and processing units used by the terminal for L1 CLI measurement.

[0007] Firstly, an L1 CLI measurement method is provided, executed by a terminal, the method comprising:

[0008] The terminal performs Layer 1 inter-link interference (L1 CLI) measurement based on the first timing.

[0009] Wherein, the first timing is a downlink reference timing, or an uplink reference timing, or is determined by the terminal, or is determined by the terminal according to the configuration or instructions of the network-side equipment;

[0010] The L1 CLI measurement occupies the Channel State Information (CSI) processing unit CPU of the terminal.

[0011] Secondly, an L1 CLI measurement method is provided, executed by a network-side device, the method comprising at least one of the following:

[0012] The network-side device sends configuration or instruction information to the terminal, the configuration or instruction information being used to determine the first timing used for L1 CLI measurement; the first timing is a downlink reference timing, or an uplink reference timing, or is determined by the terminal, or is determined by the terminal according to the configuration or instruction of the network-side device;

[0013] The network-side device configures or instructs the terminal at least one second time offset, the at least one second time offset being used to determine the first timing for performing L1 CLI measurements.

[0014] Thirdly, an L1 CLI measurement device is provided, comprising:

[0015] The processing module is used to perform Layer 1 inter-link interference (L1 CLI) measurement based on the first timing.

[0016] Wherein, the first timing is a downlink reference timing, or an uplink reference timing, or is determined by the terminal, or is determined by the terminal according to the configuration or instructions of the network-side equipment;

[0017] The L1 CLI measurement occupies the Channel State Information (CSI) processing unit CPU of the terminal.

[0018] Fourthly, an L1 CLI measurement device is provided, including a transmission module for at least one of the following:

[0019] The terminal sends configuration or instruction information to determine the first timing used for L1 CLI measurement; the first timing is a downlink reference timing, or an uplink reference timing, or is determined by the terminal, or is determined by the terminal according to the configuration or instruction of the network-side device.

[0020] Configure or indicate at least one second time offset to the terminal, the at least one second time offset being used to determine the first timing for performing L1 CLI measurements.

[0021] Fifthly, an L1 CLI measurement device is provided, the device being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0022] In a sixth aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0023] In a seventh aspect, a terminal is provided, including a processor and a communication interface, wherein the processor is used to perform Layer 1 Interlink-to-Link (L1 CLI) measurement according to a first timing; wherein the first timing is a downlink reference timing, or an uplink reference timing, or is determined by the terminal, or is determined by the terminal according to the configuration or instruction of the network-side device; the L1 CLI measurement occupies the Channel State Information (CSI) processing unit (CPU) of the terminal.

[0024] Eighthly, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0025] In a ninth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used for at least one of the following:

[0026] The terminal sends configuration or instruction information to determine the first timing used for L1 CLI measurement; the first timing is a downlink reference timing, or an uplink reference timing, or is determined by the terminal, or is determined by the terminal according to the configuration or instruction of the network-side device.

[0027] Configure or indicate at least one second time offset to the terminal, the at least one second time offset being used to determine the first timing for performing L1 CLI measurements.

[0028] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0029] Eleventhly, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method as described in the first aspect, and the network-side device can be used to perform the steps of the method as described in the second aspect.

[0030] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0031] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method as described in the first aspect, or to implement the steps of the method as described in the second aspect.

[0032] In this embodiment, the terminal can perform L1 CLI measurements based on a first timing. The first timing can be a downlink reference timing, an uplink reference timing, or a timing determined by the terminal itself, or a timing determined by the terminal based on the configuration or instructions of the network-side equipment. During L1 CLI measurements, the terminal can utilize its CSI processing unit. Thus, since this embodiment provides the timing used by the terminal for L1 CLI measurements and the processing unit that can be utilized, it facilitates L1 CLI measurements by the terminal, thereby improving the effectiveness of the communication system. Attached Figure Description

[0033] Figure 1 is a schematic diagram of a wireless communication system according to an embodiment of this application;

[0034] Figure 2 is a schematic flowchart of the L1 CLI measurement method according to an embodiment of this application;

[0035] Figure 3 is a schematic diagram of the non-periodic CSI report triggering timing according to an embodiment of this application (d=0);

[0036] Figure 4 is a schematic diagram of L1 CLI measurement performed by UE2 according to an embodiment of this application;

[0037] Figure 5 is a schematic diagram of different timings of UE2 according to an embodiment of this application;

[0038] Figure 6 is a schematic flowchart of the L1 CLI measurement method according to an embodiment of this application;

[0039] Figure 7 is a schematic diagram of the structure of the L1 CLI measuring device according to an embodiment of this application;

[0040] Figure 8 is a schematic diagram of the structure of the L1 CLI measuring device according to an embodiment of this application;

[0041] Figure 9 is a schematic diagram of the structure of a communication device according to an embodiment of this application;

[0042] Figure 10 is a schematic diagram of the structure of a terminal according to an embodiment of this application;

[0043] Figure 11 is a schematic diagram of the structure of a network-side device according to an embodiment of this application. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0045] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0046] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0047] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0048] Figure 1 shows a block diagram of a wireless communication system applicable to an embodiment of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (AS), or Wireless Fidelity (WiFi) nodes, etc.The term "base station" can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to specific technical terms. It should be noted that the embodiments in this application only use base stations in NR systems as examples for description and do not limit the specific type of base station.

[0049] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), and Binding Support. The core network functions include: BSF (Block Network Function), Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), and Network Data Analytics Function (NWDAF). It should be noted that this application embodiment only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application embodiment changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0050] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0051] It should be noted that the L1 CLI measurement or reporting in this embodiment is relative to the L3 CLI measurement or reporting in related technologies. L1 CLI measurement refers to CLI measurement and reporting at L1 without requiring processing at higher layers (such as L3). Alternatively, a CSI measurement and reporting framework from related technologies can be used, referred to as a CSI measurement and reporting, where the measured or reported quantities are CLI-related quantities such as L1-SRS-RSRP or L1-RSSI.

[0052] The L1 CLI measurement method, terminal, and network-side equipment provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0053] As shown in Figure 2, this application embodiment provides an L1 CLI measurement method 200. The L1 CLI measurement method can be executed by a terminal (User Equipment, UE). In other words, the L1 CLI measurement method can be executed by software or hardware installed on the terminal. The L1 CLI measurement method includes the following steps.

[0054] S202: The terminal performs L1 CLI measurement according to the first timing; the first timing is a downlink reference timing, or an uplink reference timing, or is determined by the terminal, or is determined by the terminal according to the configuration or instruction of the network side equipment; the L1 CLI measurement occupies the terminal's Channel State Information (CSI) processing unit CPU.

[0055] When performing Layer 1 Cross Link Interference (L1 CLI) measurements, the terminal can perform the measurement based on a first timing. This first timing can be a downlink reference timing (DL reference timing), an uplink reference timing (UL reference timing), or can be determined by the terminal itself, or determined by the terminal based on the configuration or instructions of the network-side equipment. In other words, when performing L1 CLI measurements, the terminal can use the downlink reference timing as the reception timing of the corresponding Cross Link Interference Reference Signal (CLI-RS) for L1 CLI measurements, or use the uplink reference timing as the reception timing of the CLI-RS corresponding to the L1 CLI measurement for L1 CLI measurements, or the terminal can determine the reception timing of the CLI-RS for L1 CLI measurements, or the terminal can determine the reception timing of the CLI-RS for L1 CLI measurements based on the configuration or instructions of the network-side equipment for L1 CLI measurements.

[0056] Downlink reference timing can be the downlink reference timing of the serving cell corresponding to the reference signal CLI-RS of L1 CLI measurement (or the serving cell where the subband / bandwidth part (BWP) of the receiving CLI-RS is located), such as system frame or system frame number (SFN), subframe or subframe index, slot or slot index, symbol or symbol index, etc.

[0057] The uplink reference timing can be the uplink reference timing of the serving cell corresponding to the L1 CLI measurement's reference signal CLI-RS (or the serving cell of the subband where the receiving CLI-RS is located (corresponding to the UL subband) / BWP is located) (which can be determined through downlink reference timing and timing advance (TA)). Examples include system frame or system frame number (SFN), subframe or subframe index, slot or slot index, symbol or symbol index, etc.

[0058] The first timing includes four cases, and the terminal can use one of the first timings when performing L1 CLI measurements. Optionally, in some embodiments, the terminal can determine the first timing used for L1 CLI measurements based on at least one of the following (a1) to (a6):

[0059] (a1) Configuration or instruction information of network-side devices;

[0060] For example, network-side devices can be configured or instructed to use downlink reference timing when the terminal performs L1 CLI measurements. Then, when the terminal performs L1 CLI measurements, it can perform L1 CLI measurements according to the downlink reference timing.

[0061] Optionally, the terminal can report its own capability information (such as which first timing the terminal supports for L1 CLI measurement or the timing offset required by the UE) to the network-side device. The network-side device can configure or instruct the terminal to use which first timing or time offset when performing L1 CLI measurement based on the terminal's capability information.

[0062] (a2) Terminal capability information.

[0063] For example, if the terminal supports L1 CLI measurement based on downlink reference timing, then the terminal can use downlink reference timing to perform L1 CLI measurement. Or, if the terminal supports L1 CLI measurement based on both downlink and uplink reference timing, then the terminal can determine the timing of L1 CLI measurement and perform L1 CLI measurement according to predefined rules or according to the configuration or instructions of the network-side device.

[0064] (a3) Periodicity of L1 CLI measurement or reporting.

[0065] For example, for periodic or semi-persistent L1 CLI measurements or reports, the terminal can use downlink reference timing to perform L1 CLI measurements. For non-periodic L1 CLI measurements or reports, the terminal can use uplink reference timing to perform L1 CLI measurements, or the terminal can determine the timing for performing L1 CLI measurements, or the timing can be determined based on the configuration or instructions of the network-side equipment.

[0066] When the terminal performs L1 CLI measurements according to the downlink reference timing, the terminal implementation is simple, and there are no downlink scheduling restrictions on the symbols of the CLI-RS corresponding to the L1 CLI measurement. The network-side equipment can simultaneously schedule other downlink transmissions (such as Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), and Channel State Information Reference Signal (CSI-RS) (such as CSI-RS for tracking and CSI-RS for Channel Quality Indicator (CQI)) to the terminal. Downlink transmission can be uninterrupted, and resource utilization is high, but it may affect the accuracy of the measurement results. When a terminal performs L1 CLI measurements according to uplink reference timing or other timings, the terminal implementation is more complex. There may be downlink scheduling restrictions on the symbols of the CLI-RS corresponding to the L1 CLI measurement (i.e., the symbols on which the terminal performs L1 CLI measurements). For example, the UE is not expected to receive PDCCH / PDSCH / CSI-RS for tracking / CSI-RS for CQI on OFDM symbols on which the UE performs SRS-RSRP measurements, and on one data symbol before an OFDM symbol used for SRS-RSRP measurements for 15kHz and 30kHz subcarrier spacing. Network-side equipment cannot simultaneously schedule other downlink transmissions (such as PDCCH, PDSCH, and CSI-RS, where the CSI-RS could be for tracking or CSI-RS for CQI) to the terminal, leading to downlink transmission interruptions and low resource utilization, but improving measurement accuracy. For periodic and semi-persistent L1 CLI measurements or reporting, which require periodic measurement and reporting, the resource overhead or impact of the aforementioned scheduling restrictions is more significant. For non-periodic L1 CLI measurements or reports, network-side devices only trigger terminals to perform measurements and reports when needed, and the resource overhead caused by scheduling limitations is not significant or can be ignored.

[0067] (a4) Measurement of L1 CLI.

[0068] For example, if the L1 CLI measurement is the Layer 1 Sounding Reference Signal Received Power (L1-SRS-RSRP), then, since RSRP measures the received power on a specific reference signal, timing misalignment can significantly impact the accuracy of the measurement results. Therefore, the terminal can use uplink reference timing for L1 CLI measurement, or the terminal implementation can determine the timing for L1 CLI measurement, or the timing can be determined based on the configuration or instructions of the network-side equipment. If the L1 CLI measurement is the Layer 1 Received Signal Strength Indicator (L1-RSSI), then, since RSSI measures the total received signal strength within a certain time-frequency resource, its timing requirements are relatively low. Therefore, the terminal can use downlink reference timing to reduce the aforementioned scheduling constraints, or use uplink reference timing for L1 CLI measurement to simplify terminal implementation.

[0069] (a5) Reporting volume of L1 CLI.

[0070] For example, if the reported quantity of L1 CLI is L1-SRS-RSRP, then since RSRP measures the received power on a specific reference signal, if the timing is not aligned, the accuracy of the measurement result will be greatly affected. Therefore, the terminal can use uplink reference timing to perform L1 CLI measurement, or the terminal can determine the timing for L1 CLI measurement, or the timing for L1 CLI measurement can be determined according to the configuration or instructions of the network-side equipment. If the measured quantity of L1 CLI is L1-RSSI, then since RSSI measures the total interference power within a certain time-frequency resource, its timing requirements are relatively low. Therefore, the terminal can use downlink reference timing to reduce the above scheduling restrictions or use uplink reference timing to perform L1 CLI measurement to simplify the terminal implementation.

[0071] (a6) The frequency domain subband where the reference signal corresponding to L1 CLI is located.

[0072] For example, if the reference signal CLI-RS corresponding to L1 CLI is in the DL subband, the terminal can use downlink reference timing to perform L1 CLI measurement; if the reference signal CLI-RS corresponding to L1 CLI is in the UL subband, the terminal can use uplink reference timing to perform L1 CLI measurement.

[0073] When the terminal performs L1 CLI measurements according to the first timing, the L1 CLI measurements may occupy a number of CPUs for a number of symbols. Optionally, in some embodiments, for periodic or semi-persistent L1 CLI reporting (e.g., excluding an initial semi-persistent L1 CLI report on PUSCH after the PDCCH triggering the report), the CPU(s) occupied by the L1 CLI measurements from the first symbol may include at least one of the following (b1) to (b3) (that is, when the terminal performs L1 CLI measurements, it will occupy CPUs on certain symbols, and the starting position of the symbol may include at least one of the following (b1) to (b3)):

[0074] (b1) The CPU time used by the L1 CLI measurement starts from the first symbol of the CLI-RS corresponding to the L1 CLI measurement.

[0075] The aforementioned first timing is a downlink reference timing. This means that when the terminal performs L1 CLI measurements based on the downlink reference timing, for periodic or semi-persistent L1 CLI reporting, the CPU usage time for L1 CLI measurements can begin from the first symbol of the CLI-RS corresponding to the L1 CLI measurement. The first symbol of the CLI-RS corresponding to the L1 CLI measurement can be determined based on the downlink reference timing; that is, the first symbol of the CLI-RS corresponding to the L1 CLI measurement is the position determined according to the downlink reference timing. Optionally, if the CLI-RS corresponding to the L1 CLI measurement includes multiple CLI-RSs, the first symbol of the CLI-RS corresponding to the L1 CLI measurement can be the first symbol of the earliest CLI-RS among these multiple CLI-RSs (the position determined according to the downlink reference timing).

[0076] (b2) The CPU time occupied by L1 CLI measurement starts from X symbols before the first symbol of the CLI-RS corresponding to L1 CLI measurement, or from the first symbol of the CLI-RS corresponding to L1 CLI measurement and after taking into account the timing advance (TA) of uplink transmission (the position offset forward by TA from the first symbol of the CLI-RS corresponding to L1 CLI measurement).

[0077] The first timing is the uplink reference timing. That is, when the terminal performs L1 CLI measurements based on the uplink reference timing, for periodic or semi-persistent L1 CLI reporting, the CPU time occupied by the L1 CLI measurement can start from X symbols before the first symbol of the CLI-RS corresponding to the L1 CLI measurement, or from the position after the first symbol of the CLI-RS corresponding to the L1 CLI measurement, taking into account the TA of the uplink transmission (or equivalent to the first symbol of the CLI-RS determined according to the uplink reference timing). The first symbol of the CLI-RS corresponding to the L1 CLI measurement can be determined based on the downlink reference timing. Optionally, if the CLI-RS corresponding to the L1 CLI measurement includes multiple CLI-RSs, the first symbol of the CLI-RS corresponding to the L1 CLI measurement can be the first symbol of the earliest CLI-RS among these multiple CLI-RSs (the position determined according to the downlink reference timing).

[0078] X can be specified by the protocol, or related to at least one of the following: the subcarrier spacing (SCS) of the CLI-RS corresponding to the LI CLI measurement (e.g., the SCS of the activated DL BWP SCS or CLI-RS), the frequency range (e.g., FR1 or FR2), and the L1 CLI measurement or reporting quantity (e.g., LI CLI RSRP or L1 CLI RSSI). For example, for FR1, X = 1 when the SCS is less than or equal to 30 kHz, and X = 2 when the SCS is less than or equal to 60 kHz; for FR2, X = 1 when the SCS is 60 kHz, and X = 2 when the SCS is 120 kHz.

[0079] (b3) The CPU time occupied by L1 CLI measurement starts from Y symbols before the first symbol of the CLI-RS corresponding to L1 CLI measurement, or from the T1 position before the first symbol of the CLI-RS corresponding to L1 CLI measurement.

[0080] The initial timing can be determined by the terminal based on the configuration or instructions of the network-side equipment, or determined by the terminal itself. That is, when the terminal performs L1 CLI measurements based on the timing determined by the terminal or the configuration or instructions of the network-side equipment, for periodic or semi-continuous L1 CLI reporting, the CPU time occupied by the L1 CLI measurement can start from Y symbols before the first symbol of the CLI-RS corresponding to the L1 CLI measurement, or from position T1 before the first symbol of the CLI-RS corresponding to the L1 CLI measurement (or equivalently, the first symbol of the CLI-RS determined based on the timing offset T1 before the downlink reference timing). The first symbol of the CLI-RS corresponding to the L1 CLI measurement can be determined based on the downlink reference timing. Optionally, when the CLI-RS corresponding to the L1 CLI measurement includes multiple CLI-RSs, the first symbol of the CLI-RS corresponding to the L1 CLI measurement can be the first symbol of the earliest CLI-RS among the multiple CLI-RSs (the position determined based on the downlink reference timing).

[0081] T1 can be configured or indicated by network-side devices, or it can be reported by the terminal.

[0082] Y may be specified by the protocol, or may relate to at least one of the following: the SCS of the CLI-RS corresponding to the LI CLI measurement (e.g., the SCS of the activated DL BWP SCS or the SCS of the CLI-RS), the frequency domain range (e.g., FR1 or FR2), and the L1 CLI measurement or reporting quantity (e.g., LI CLI RSRP or L1 CLI RSSI).

[0083] When the terminal performs L1 CLI measurements according to the first timing, considering the terminal's capabilities (the terminal may not be able to simultaneously receive and transmit; for downlink transmission, the terminal may not be able to simultaneously receive according to different timings), it is necessary to limit the uplink and downlink scheduling of the terminal by the network-side equipment. Optionally, in some embodiments, on the first symbol, the terminal can perform any of the following three operations:

[0084] First operation: The terminal receives the first downlink transmission configured or scheduled by the network-side device, but does not expect the network-side device to configure or schedule the first uplink transmission; or, the terminal does not expect the network-side device to configure or schedule the first uplink transmission.

[0085] Second operation: The terminal does not expect to receive the first downlink transmission configured or scheduled by the network-side device, nor does it expect the network-side device to configure or schedule the first uplink transmission.

[0086] Third operation: The terminal performs the first or second operation described above, depending on its capabilities;

[0087] The first downlink transmission can be, for example, the Physical Downlink Control Channel (PDCCH), the Physical Downlink Shared Channel (PDSCH), or the Channel State Information Reference Signal (CSI-RS) (such as CSI-RS for tracking or CSI-RS for Channel Quality Indicator (CQI)).

[0088] The first uplink transmission can be, for example, the Physical Uplink Control Channel (PUCCH), the Physical Uplink Shared Channel (PUSCH), the Sounding Reference Signal (SRS), etc., without being specifically limited here.

[0089] The above scheduling restrictions apply to the corresponding serving cell, or if the terminal is configured with intra-band carrier aggregation, the above scheduling restrictions apply to symbols that partially or completely overlap with the corresponding restricted symbols on all serving cells within the same band (e.g., when SCS are different, some symbols may overlap).

[0090] The first symbol can be any one of the following (c1) to (c3):

[0091] (c1) The symbols of the CLI-RS corresponding to the LI CLI measurement (such as OFDM symbols on which the UE performs CLI measurements). The first timing used by the terminal for L1 CLI measurement is the downlink reference timing.

[0092] (c2) The symbol of the CLI-RS corresponding to the LI CLI measurement and the X symbols before the first symbol of the CLI-RS corresponding to the LI CLI measurement, or the symbol of the CLI-RS corresponding to the LI CLI measurement and taking into account the position of TA, the first timing used by the terminal for L1 CLI measurement is the uplink reference timing.

[0093] The first symbol of the CLI-RS corresponding to the LI CLI measurement is determined based on the downlink reference timing or the uplink reference timing (equivalent to the first symbol being the symbol of the CLI-RS corresponding to the LI CLI measurement, taking into account the position of the TA). Where the CLI-RS corresponding to the LI CLI measurement includes multiple CLI-RSs, the first symbol of the CLI-RS corresponding to the LI CLI measurement is the first symbol of the earliest CLI-RS among these multiple CLI-RSs.

[0094] X is defined by the protocol, or relates to at least one of the SCS, frequency range, and L1 CLI measurement or reporting quantity of the CLI-RS corresponding to the LI CLI measurement.

[0095] (c3) The symbol of the CLI-RS corresponding to the LI CLI measurement and the Y symbols before the first symbol of the CLI-RS corresponding to the LI CLI measurement, or the symbol of the CLI-RS corresponding to the LI CLI measurement and the T1 position before the first symbol of the CLI-RS corresponding to the LI CLI measurement. The first timing used by the terminal for L1 CLI measurement is determined by the terminal according to the configuration or instruction of the network side device or by the terminal itself.

[0096] The first symbol of the CLI-RS corresponding to the LI CLI measurement is determined based on the downlink reference timing, or based on the timing offset T1 before the downlink reference timing (equivalent to the first symbol being the symbol of the CLI-RS corresponding to the LI CLI measurement and the T1 position before the first symbol of the CLI-RS corresponding to the LI CLI measurement). Where the CLI-RS corresponding to the LI CLI measurement includes multiple CLI-RSs, the first symbol of the CLI-RS corresponding to the LI CLI measurement is the first symbol of the earliest CLI-RS among these multiple CLI-RSs.

[0097] T1 is configured or indicated by network-side devices or reported by the terminal.

[0098] Y is defined by the protocol, or relates to at least one of the SCS, frequency domain range, and L1 CLI measurement or reporting quantity of the CLI-RS corresponding to the LI CLI measurement.

[0099] When the terminal performs L1 CLI measurements according to a first timing, the L1 CLI measurement results need to meet certain accuracy requirements. In some implementations, the L1 CLI measurement results may not need to meet the first accuracy requirement or may need to meet a second accuracy requirement lower than the first accuracy requirement. The first timing used by the terminal when performing L1 CLI measurements can be a downlink reference timing or an uplink reference timing. The first accuracy requirement can be specified by the protocol, and the second accuracy requirement is related to at least one of the following: the SCS interval of the CLI-RS corresponding to the L1 CLI measurement, the frequency domain range, and the L1 CLI measurement or reported quantity.

[0100] In related technologies, terminals need to meet corresponding accuracy requirements when performing CSI or L3 CLI measurements. For example, for L3 SRS RSRP in related technologies, its accuracy requirements in FR1 can be shown in Table 1 below.

[0101] Table 1

[0102] Alternatively, in a more specific implementation, the measurement accuracy requirements for L1 CLI may include any one of the following (d1) to (d3):

[0103] (d1) The accuracy requirement for L1 CLI measurement is smaller than that for L3 CLI measurement under the same conditions (SCS interval, frequency range, etc.) (the error range of L1 CLI measurement is larger).

[0104] For example, when the timing of L1 CLI measurements uses downlink reference timing or uplink reference timing, or for aperiodic L1 CLI, especially aperiodic L1 SRS RSRP, the accuracy requirement for L1 CLI measurements is less than the accuracy requirement for L3 CLI measurements under the same conditions.

[0105] (d2) The accuracy requirements for L1 CLI measurement are the same as those for L3 CLI measurement under the same conditions (the error range is the same).

[0106] For example, when the timing of L1 CLI measurements uses uplink reference timing or depends on the UE implementation, or for periodic or semi-persistent CLI, especially periodic or semi-persistent L1 SRS RSRP, the accuracy requirements for L1 CLI measurements are the same as those for L3 CLI measurements under the same conditions.

[0107] (d3) The accuracy requirement for L1 CLI measurement is greater than that for L3 CLI measurement under the same conditions (the error range of L1 CLI measurement is smaller).

[0108] For example, when the timing of L1 CLI measurements uses uplink reference timing or depends on the UE implementation, or for periodic or semi-persistent L1 CLI, especially periodic or semi-persistent L1 SRS RSRP, the accuracy requirements for L1 CLI measurements are greater than the accuracy requirements for L3 CLI measurements under the same conditions.

[0109] Alternatively, in some possible implementations, L1 CLI measurements may not have corresponding accuracy requirements due to timing considerations. For example, for aperiodic L1 CLI, especially aperiodic L1 SRS RSRP, L1 CLI measurements may not have corresponding accuracy requirements.

[0110] When the terminal performs L1 CLI measurement according to the first timing, there may be a situation where the terminal fails to detect the CLI-RS corresponding to the L1 CLI measurement according to the first timing. In this case, in some implementations, the terminal may perform at least one of the following (e1) to (e7):

[0111] (e1) The terminal does not perform L1 CLI measurement; the lack of L1 CLI measurement here can be temporary, i.e., for the current period or for the current trigger, or it can be permanent, such as for the period and semi-persistent, for the current period or subsequent periods, where no measurement or reporting is required.

[0112] (e2) The terminal does not report the corresponding measurement results;

[0113] (e3) The terminal reports an invalid result; for example, the terminal reports invalid.

[0114] (e4) The terminal does not update the measurement results;

[0115] (e5) The terminal reports that the L1 CLI measurement is out of range;

[0116] (e6) The terminal notifies the network-side device that the measurement timing of CLI-RS is not aligned with the first timing; for example, when the terminal performs L1 CLI measurement according to the downlink reference timing, if the corresponding CLI-RS is not detected according to the first timing, the terminal can notify the network-side device that the measurement timing of CLI-RS is not aligned with the downlink reference timing.

[0117] (e7) The terminal notifies the network-side device that the terminal cannot detect CLI-RS; for example, when the terminal performs L1 CLI measurement according to the downlink reference timing, if the corresponding CLI-RS is not detected according to the first timing, the terminal can notify the network-side device that the terminal cannot detect the CLI-RS corresponding to the L1 CLI measurement.

[0118] Optionally, the terminal not detecting the CLI-RS corresponding to the L1 CLI measurement according to the first timing can be due to the terminal not detecting the CLI-RS corresponding to the L1 CLI measurement according to the downlink reference timing. That is, if the terminal does not detect the CLI-RS corresponding to the L1 CLI measurement according to the first timing when the first timing is the downlink reference timing, the terminal can execute at least one of (e1) to (e7) above.

[0119] The first timing in this embodiment can be determined by the terminal. Optionally, in some implementations, when the first timing is determined by the terminal, the following steps may be included:

[0120] The terminal determines the first time offset;

[0121] The terminal determines the first timing based on the first time offset and the downlink reference timing.

[0122] The first time offset can be a time offset relative to the downlink reference timing, specifically a forward offset relative to the downlink reference timing. After determining the first time offset, the terminal can determine the timing for performing L1 CLI measurements based on this first time offset and the downlink reference timing.

[0123] Optionally, the first time offset can be constant. Optionally, when the CLI-RS corresponding to the L1 CLI measurement includes multiple CLI-RSs, different CLI-RSs can correspond to different first time offsets; for example, the first time offset is determined per CLI-RS.

[0124] In this embodiment of the application, the first timing can be determined by the terminal according to the configuration or instructions of the network-side device. When the first timing is determined by the terminal according to the configuration or instructions of the network-side device, optionally, in some embodiments, the following steps may be included:

[0125] The terminal receives at least one second time offset configured or indicated by the network-side device;

[0126] The terminal determines the third time offset based on at least one second time offset;

[0127] The terminal determines the first timing based on the third time offset and the downlink reference timing.

[0128] The second time offset can be a time offset relative to the downlink reference timing. Specifically, it can be a forward offset relative to the downlink reference timing. Network-side devices can configure one or more second time offsets. When a network-side device configures one second time offset, this second time offset can be equal to the uplink transmission TA, or it can be greater than or less than TA; no specific limitation is made here. Optionally, when the CLI-RS corresponding to the L1 CLI measurement includes multiple CLI-RSs, or when the terminal is configured with different CLI-RSs, different CLI-RSs can correspond to different second time offsets. When a network-side device configures multiple second time offsets, the minimum value among the multiple second time offsets can be TA, or it can be less than or greater than TA; no specific limitation is made here.

[0129] It should be noted that, for the T1 mentioned above, when the network-side device is configured with a second time offset, T1 can be equal to the second time offset. When the network-side device is configured with multiple second time offsets, T1 can be the maximum value among the multiple second time offsets.

[0130] The third time offset can be an offset relative to the downlink reference timing. When the terminal determines the third time offset based on at least one second time offset configured by the network-side device, optionally, in some embodiments, the third time offset can be determined by the terminal, and the third time offset determined by the terminal is not less than at least one second time offset configured or indicated by the network side. For example, if the network-side device configures one second time offset, the third time offset determined by the terminal can be not less than that second time offset; if the network-side device configures multiple second time offsets, the third time offset determined by the terminal can be not less than the minimum or maximum value among the multiple second time offsets. Optionally, in other embodiments, the third time offset can be a time offset selected by the terminal from at least one second time offset configured by the network-side device. For example, if the network-side device configures one second time offset, the terminal can determine that second time offset as the third time offset; if the network-side device configures multiple second time offsets, the terminal can select one time offset from the multiple second time offsets as the third time offset based on its own capabilities and / or actual conditions.

[0131] After determining the third time offset, the terminal can determine the first timing based on the third time offset and the downlink reference timing, and perform L1 CLI measurement based on the first timing.

[0132] After performing L1 CLI measurements based on a first timing (downlink reference timing, uplink reference timing, timing determined by the terminal, or timing determined by the terminal based on the configuration or instructions of the network-side equipment), in some implementations, the following steps may also be included:

[0133] The terminal reports a CLI report to the network-side device.

[0134] In some implementations, when the terminal is configured with Connected Discontinuous Reception (CDRX), Cell Discontinuous Transmission (Cell DTX), or Cell Discontinuous Reception (Cell DRX), the CLI report reported by the terminal to the network-side device may include at least one of the following:

[0135] When all symbols of the CLI-RS (time determined according to the method of this application embodiment) corresponding to the L1 CLI measurement overlap with the active period of CDRX, the terminal performs L1 CLI measurement based on the CLI-RS corresponding to the L1 CLI measurement and reports the corresponding CLI report, that is, the terminal performs CLI-RS measurement and reports the corresponding CLI report.

[0136] When all the symbols of the periodic or semi-persistent CLI-RS (the timing determined according to the method of the embodiment of this application) corresponding to the L1 CLI measurement overlap with the active period of the Cell DRX, the terminal performs L1 CLI measurement based on the periodic or semi-persistent CLI-RS corresponding to the L1 CLI measurement and reports the corresponding CLI report, that is, the terminal performs CLI-RS measurement and reports the corresponding CLI report.

[0137] When all symbols of the channel carrying periodic or semi-persistent CLI reports (timed according to the method of the embodiments of this application) overlap with the active period of Cell DRX, the terminal reports the corresponding CLI report.

[0138] Optionally, in some implementations, when the terminal is configured with CDRX or Cell DTX or Cell DRX, the terminal may not perform L1 CLI measurements or report the corresponding CLI in certain scenarios. Specifically, this may include at least one of the following:

[0139] If some or all of the symbols of the CLI-RS (time determined according to the method of the embodiment of this application) corresponding to the L1 CLI measurement overlap with the non-active period of CDRX, the terminal does not perform L1 CLI measurement based on the CLI-RS corresponding to the L1 CLI measurement or does not report the corresponding CLI report. That is, the terminal does not perform CLI-RS measurement or does not report the corresponding CLI report. In other words, the terminal does not require or need to measure CLI-RS, or the terminal does not need to report the corresponding CLI report.

[0140] When some or all of the symbols of the periodic or semi-persistent CLI-RS (the timing determined according to the method of the embodiments of this application) corresponding to the L1 CLI measurement overlap with the non-active period of the Cell DRX, the terminal does not perform L1 CLI measurement based on the periodic or semi-persistent CLI-RS corresponding to the L1 CLI measurement or does not report the corresponding CLI report. That is, the terminal does not perform CLI-RS measurement or does not report the corresponding CLI report. In other words, the terminal does not require or need to measure the CLI-RS, or the terminal does not need to report the corresponding CLI report (because during the non-active period of the Cell DRX, the terminal does not require to send the periodic or semi-persistent SRS. Since the aggressor terminal does not send SRS, the victim terminal (i.e., the terminal that needs to perform L1 CLI measurement due to interference) does not need to perform the corresponding measurement).

[0141] When some or all symbols of the channel carrying periodic or semi-continuous CLI reports (timing determined according to the method of the embodiments of this application) overlap with the non-active period of Cell DRX, the terminal does not report the corresponding CLI report, that is, the terminal does not require or need to report CLI reports.

[0142] When a terminal reports a CLI report to a network-side device, the first uplink symbol of the CLI report is related to the first timing used by the terminal when performing L1 CLI measurements. Optionally, in some implementations, the timing of the first uplink symbol of the CLI report may not be earlier than the second symbol, which can be determined based on the downlink reference timing, the uplink reference timing, the timing reported by the terminal, or the timing determined by the terminal according to the configuration or instructions of the network-side device.

[0143] The following will provide a detailed explanation of the moment when the terminal reports the first uplink symbol in the CLI report.

[0144] The UE needs a certain amount of time to calculate the CSI. The current standard describes the CSI calculation time as follows (see Figure 3):

[0145] When the CSI request field in the Downlink Control Information (DCI) triggers the PUSCH to transmit one or more CSI reports, the UE can provide a valid CSI report if the following two conditions are met:

[0146] Taking timing lead into account, the first uplink Orthogonal Frequency Division Multiplexing (OFDM) symbol (hereinafter referred to as "symbol") transmitting this CSI report will not be earlier than symbol Z. ref And no earlier than Z' ref ,in:

[0147] Z ref Defined as the last symbol of the PDCCH that triggers the CSI report, followed by ((Z+d)(2048+144)·κ2. -μ )·T C The next upline symbol after the time (seconds) includes the Cyclic Prefix (CP);

[0148] Z' ref Defined as follows: when the triggered CSI report n is based on aperiodic CSI-RS, (1) the last symbol of the aperiodic CSI-RS for channel measurement; (2) the last symbol of the aperiodic Channel State Information Interference measurement (CSI-IM) for interference measurement; (3) the last symbol of the aperiodic Non-Zero Power (NZP) CSI-RS for interference measurement, and the last symbol of the three is followed by ((Z'+d)·(2048+144)·κ2 -μ )·T C The next sign after the time (seconds) includes the CP.

[0149] The value of d is related to whether the CSI report contains PUSCH multiplexing that includes transport data blocks or Hybrid Automatic Repeat Request Acknowledgment (HARQ-ACK) or both, as well as the numerical configuration (numerology) μ.

[0150] If the first uplink symbol of the PUSCH used by one or more CSI reports that trigger PUSCH transmission in the CSI request field of the DCI does not meet the above conditions, the UE may ignore the DCI, not update the CSI, or discard the CSI report, depending on the specific circumstances.

[0151] When the number of currently idle CSI processing units (CPUs) of the UE can be used to calculate M CSI reports, Z = maxm = 0, ..., M-1 (Z m ), Z'=maxm=0,...,M-1(Z' m (Z) m ,Z' m The value corresponds to the m-th CSI report. Based on the complexity of CSI calculation and the number of unused CPUs, the protocol provides (Z, Z') corresponding to two types of CSI calculation times: low-latency CSI (latency requirement 1) and high-latency CSI (latency requirement 2), listed in Tables 2 and 3 respectively.

[0152] Table 2: CSI computation delay requirement 1

[0153] Table 3: CSI computation delay requirement 2

[0154] If the first uplink symbol of the PUSCH used by one or more CSI reports that trigger PUSCH transmission in the CSI request field of the DCI does not meet the above conditions, the UE may ignore the DCI, not update the CSI, or discard the CSI report, depending on the specific circumstances.

[0155] In Table 2 or Table 3, μ = min(μPDCCH, μCSI-RS, μUL), where μPDCCH corresponds to the subcarrier spacing of the PDCCH of the DCI that triggers the CSI report, μUL corresponds to the subcarrier spacing of the PUSCH that triggers the CSI report, and μCSI-RS corresponds to the minimum subcarrier spacing of the aperiodic CSI-RS triggered by the DCI.

[0156] Table 4: Supported transmission numerologies

[0157] The UE does not expect to receive more than one aperiodic CSI report request in a single time slot, meaning that regardless of whether it is a carrier aggregation (CA) or non-CA scenario, the UE will not transmit an aperiodic CSI report triggered by multiple DCI CSI report requests in a single time slot.

[0158] In the above formula, the time unit Tc is equal to 1 / (Δf) max ·N f ) seconds, Δf max It equals 480kHz, Nf equals 4096, and κ equals 64.

[0159] For L1 CLI reports, when a terminal reports a measurement report to the network-side device, the first uplink symbol of the transmitted report must be no earlier than symbol Z. ref And no earlier than Z' ref (i.e., the second symbol mentioned above). Considering the CLI-RS reception timing, Z ref and Z' ref The definition is as follows:

[0160] Z ref Defined as the last symbol of the PDCCH that triggers the CLI report, followed by ((Z+d)(2048+144)·κ2. -μ )·T C The next up sign after the time (seconds) includes the CP;

[0161] Z' ref Defined as when the triggered CLI report n is based on aperiodic CLI-RS, the last symbol of the aperiodic CLI-RS is followed by ((Z'+d)·(2048+144)·κ2. -μ )·T C The next symbol after the time (seconds) includes the uplink symbol of the CP. For the last symbol of the CLI-RS, this can be the last symbol determined based on the DL reference timing, UL reference timing, or the timing at which the UE receives the CLI-RS. Specifically, for example:

[0162] When the CLI-RS reception timing is determined based on the DL reference timing, the above Z' ref Defined as follows: when the triggered CLI report n is based on aperiodic CLI-RS, the signal is generated after the last symbol of the aperiodic CLI-RS (determined according to the DL reference timing) and then after ((Z'+d)·(2048+144)·κ2. -μ )·T CThe next up sign after the time (seconds) includes the CP;

[0163] When the CLI-RS reception timing is determined based on the UL reference timing, the above Z' ref Defined as follows: when the triggered CSI report n is based on aperiodic CLI-RS, the signal after the last symbol of the aperiodic CLI-RS (determined by DL reference timing or UL reference timing, preferably UL reference timing) is followed by ((Z'+d)·(2048+144)·κ2. -μ )·T C The next up sign after the time (seconds) includes the CP;

[0164] When the CLI-RS receive timing is configured or indicated by the network-side device, the above Z' ref Defined as follows: when the triggered CLI report n is based on aperiodic CLI-RS, the time interval after the last symbol of the aperiodic CLI-RS (determined according to the DL reference timing or the timing indicated by the network-side device configuration, preferably determined according to the timing indicated by the network-side device configuration) is ((Z'+d)·(2048+144)·κ2). -μ )·T C The next up sign after the time (seconds) includes the CP;

[0165] When the CLI-RS reception timing is determined by the UE, the above Z' ref Defined as follows: when the triggered CLI report n is based on aperiodic CLI-RS, the signal after the last symbol of the aperiodic CLI-RS (determined by the DL reference timing, the UL reference timing, or the timing specified by the network-side device configuration or indication) is followed by ((Z'+d)·(2048+144)·κ2. -μ )·T C The next sign after the time (seconds) includes the CP.

[0166] The foregoing has explained how the technical solution provided in the embodiments of this application determines the timing of L1 CLI measurements by the terminal, the CPU usage time, and the uplink / downlink scheduling limitations. For ease of understanding, the following will use a possible application scenario shown in Figure 4 as an example.

[0167] In Figure 4, UE1 performs uplink transmission with gNB1 based on SBFD, and UE2 performs downlink transmission with gNB2 based on SBFD. UE2 will experience interference from UE1, requiring L1 CLI measurement. Assuming UE1 and UE2 have the same time-frequency resources configured for SBFD, UE1's uplink transmission on the UL subband will cause inter-subband interference to UE2's downlink reception. To measure L1 CLI, gNB2 can configure UE2 to measure CLI on the corresponding resources, for example, measuring RSRP on the corresponding SRS resource, i.e., measuring L1-SRS-RSRP (e.g., base stations can exchange information to obtain UE1's SRS resource configuration).

[0168] For UE2 performing L1 CLI measurements, it has DL reference timing for downlink reception (e.g., PDCCH, PDSCH, CSI-RS) and UL reference timing for uplink transmission (e.g., PUCCH, PUSCH, SRS). The UL reference timing is earlier than the DL reference timing, and its specific value is determined by the configured TA. CLI-RS is the reference signal transmitted by UE1 measured by UE2, and its reception timing may differ from UE2's DL or UL reference timing, as shown in Figure 5. To accurately measure CLI values, especially SRS RSRP, UE2 requires accurate reception timing. UE2 can determine the L1 CLI measurement timing using at least one of methods 1 to 3. Furthermore, L1 CLI measurements require CPU usage and are subject to scheduling limitations. The CPU usage or scheduling limitations are related to the timing method of the L1 CLI measurements.

[0169] Method 1: UE2 performs CLI measurements based on DL reference timing.

[0170] Optionally, for periodic or semi-persistent L1 CLI reporting, the CPU time occupied by the L1 CLI measurement starts from the first symbol of the CLI-RS corresponding to the L1 CLI measurement (the position determined by the DL reference timing). If the CLI-RS corresponding to the L1 CLI measurement includes multiple CLI-RSs, the CPU time occupied by the L1 CLI measurement starts from the first symbol of the earliest CLI-RS among these multiple CLI-RSs (the position determined by the DL reference timing).

[0171] Optionally, on the symbol of the CLI-RS corresponding to the L1 CLI measurement:

[0172] Method 1: UE2 does not expect the base station to configure or schedule the first uplink transmission (such as PUCCH / PUSCH / SRS); Optionally, UE2 may receive the first downlink transmission (such as PDCCH / PDSCH / CSI-RS (such as CSI-RS for tracking / CSI-RS for CQI) etc.) configured or scheduled by the base station.

[0173] Method 2: The UE2 terminal does not expect to receive the first downlink transmission configured or scheduled by the base station, nor does it expect the base station to configure or schedule the first uplink transmission;

[0174] Method 3: UE2 determines either Method 1 or Method 2 based on its own capabilities.

[0175] Optionally, the measurement results of L1 CLI do not need to meet the first accuracy requirement or need to meet a second accuracy requirement that is lower than the first accuracy requirement. The second accuracy requirement is related to at least one of the CLI-RS SCS interval, frequency domain range, and L1 CLI measurement and reporting quantities corresponding to the L1 CLI measurement. Optionally, the accuracy requirement of L1 CLI measurement is smaller than the accuracy requirement of L3 CLI measurement under the same conditions (the error range of L1 CLI measurement is larger).

[0176] Optionally, if UE2 does not detect CLI-RS according to DL reference timing, at least one of the following can be performed:

[0177] No L1 CLI measurement is performed (this can be temporary, i.e., for the current period or for the current trigger, or permanent, such as for the period and semi-persistent, for the current period or subsequent periods, without the need for measurement or reporting).

[0178] The corresponding measurement results were not reported.

[0179] Report invalid results;

[0180] Do not update measurement results;

[0181] Report L1 CLI measurement out of range;

[0182] The measurement timing of the CLI-RS base station is not aligned with the DL reference timing.

[0183] The base station terminal was notified that CLI-RS could not be detected.

[0184] Optionally, the DL reference timing is the DL reference timing of the serving cell corresponding to the L1 CLI measurement's reference signal CLI-RS (or the serving cell of the subband / BWP where the receiving CLI-RS is located), such as the system frame or system frame number (SFN), subframe or subframe index, slot or slot index, symbol or symbol index, etc.

[0185] It is worth noting that at this time, the time requirements for L1 CLI measurement and reporting, such as Z... ref or Z' ref (n) Same as existing CSI measurements and reporting.

[0186] Method 2: UE2 performs L1 CLI measurements based on UL reference timing.

[0187] Optionally, for periodic or semi-continuous L1 CLI reporting, the CPU time occupied by the L1 CLI measurement begins from the X-symbol before the first symbol of the CLI-RS corresponding to the L1 CLI measurement (determined according to DL reference timing), or from the position after considering the TA of the first symbol of the CLI-RS corresponding to the L1 CLI measurement. Wherein, if the CLI-RS corresponding to the L1 CLI measurement includes multiple CLI-RSs, the CPU time occupied by the L1 CLI measurement begins from the X-symbol before the first symbol of the earliest CLI-RS (determined according to DL reference timing) or from the position after considering the TA of the earliest CLI-RS. X is specified by the protocol, or is related to at least one of the SCS, frequency domain range, and L1 CLI measurement or reporting quantity of the CLI-RS corresponding to the L1 CLI measurement.

[0188] Optionally, the symbols of the CLI-RS corresponding to the L1 CLI measurement and the X symbols preceding the first symbol of the CLI-RS corresponding to the L1 CLI measurement, or the symbols of the CLI-RS corresponding to the L1 CLI measurement considering the position of the TA:

[0189] Method 1: UE2 does not expect the base station to configure or schedule the first uplink transmission (such as PUCCH / PUSCH / SRS); Optionally, UE2 may receive the first downlink transmission (such as PDCCH / PDSCH / CSI-RS (such as CSI-RS for tracking / CSI-RS for CQI) etc.) configured or scheduled by the base station.

[0190] Method 2: The UE2 terminal does not expect to receive the first downlink transmission configured or scheduled by the base station, nor does it expect the base station to configure or schedule the first uplink transmission;

[0191] Method 3: UE2 determines either Method 1 or Method 2 based on its own capabilities.

[0192] Optionally, for L1 CLI measurement results, UE2 does not need to meet the corresponding accuracy requirement, or UE2 needs to meet the corresponding relaxed accuracy requirement. For example, the accuracy requirement for L1 CLI measurement is lower than that for L3 CLI measurement results. Optionally, the accuracy requirement that L1 CLI measurement needs to meet is related to at least one of the following: CLI-RS SCS interval, frequency domain range, and L1 CLI measurement and reporting quantities.

[0193] Optionally, the UL reference timing is the UL reference timing corresponding to the serving cell (or the subband where the receiving CLI-RS is located (corresponding to the UL subband) / the serving cell where the BWP is located). For example, the system frame or system frame number (SFN), subframe or subframe index, slot or slot index, symbol or symbol index, etc.

[0194] Optionally, for L1 CLI measurement and reporting time requirements, such as Z ref or Z' ref (n) is calculated according to DL reference timing or UL reference timing.

[0195] Method 3: The L1 CLI measurement timing (time offset) is determined by UE2 or indicated by the base station configuration.

[0196] Optionally, the base station configures one or more time offset values ​​T1, and the UE determines which one to use. Optionally, the time offset value determined by the UE is not less than the T1 configured by the base station. The time offset determined by the UE is a constant. When the base station configures multiple T1 values, the UE selects one from the T1 values ​​configured by the base station based on its capabilities and / or actual conditions. For different CLI-RSs, the T1 or the constant time offset may be different; for example, the T1 or the constant time offset may be determined per CLI-RS. The T1 may be equal to the uplink transmission advance (TA).

[0197] Optionally, for periodic or semi-persistent L1 CLI reporting, the CPU occupancy time of L1 CLI measurement starts from Y symbols before the first symbol of the CLI-RS corresponding to the L1 CLI measurement (determined according to DL reference timing), or from position T1 before the first symbol of the CLI-RS corresponding to the L1 CLI measurement. Here, T1 is configured or indicated by the base station or reported by UE2. If the base station configures multiple T1s, then the T1 in the L1 CLI measurement CPU occupancy time starting from T1 before the first symbol of the CLI-RS corresponding to the L1 CLI measurement is the maximum T1 in the configuration. Y is specified by the protocol or is related to at least one of the SCS, frequency domain range, and L1 CLI measurement or reporting quantity of the CLI-RS corresponding to the L1 CLI measurement. If the CLI-RS corresponding to the L1 CLI measurement contains multiple CLI-RSs, then the first symbol of the CLI-RS corresponding to the L1 CLI measurement is the first symbol of the earliest CLI-RS among the multiple CLI-RSs (determined according to DL reference timing).

[0198] Optionally, at the Y symbols preceding the symbol of the CLI-RS corresponding to the L1 CLI measurement and the first symbol of the CLI-RS corresponding to the L1 CLI measurement, or at the T1 position preceding the symbol of the CLI-RS corresponding to the L1 CLI measurement and the first symbol of the CLI-RS corresponding to the L1 CLI measurement:

[0199] Method 1: UE2 does not expect the base station to configure or schedule the first uplink transmission (such as PUCCH / PUSCH / SRS); Optionally, UE2 may receive the first downlink transmission (such as PDCCH / PDSCH / CSI-RS (such as CSI-RS for tracking / CSI-RS for CQI) etc.) configured or scheduled by the base station.

[0200] Method 2: The UE2 terminal does not expect to receive the first downlink transmission configured or scheduled by the base station, nor does it expect the base station to configure or schedule the first uplink transmission;

[0201] Method 3: UE2 determines either Method 1 or Method 2 based on its own capabilities.

[0202] Optionally, for L1 CLI measurement and reporting time requirements, such as Z ref or Z' ref (n) is calculated according to DL reference timing or UL reference timing.

[0203] For methods 1 to 3 above, optionally, UE2 can determine which method to use for L1 CLI measurement based on at least one of the following:

[0204] Base station configuration or indication information;

[0205] UE2 capability information;

[0206] Periodicity of L1 CLI measurements or reporting;

[0207] The measurement quantity of L1 CLI;

[0208] L1 CLI reporting volume;

[0209] The frequency domain subband where the reference signal corresponding to L1 CLI is located.

[0210] For X in method 2 or Y in method 3 above, it can be a predefined value of the protocol or related to the SCS of the CLI-RS corresponding to the L1 CLI measurement (such as the activated DL BWP SCS or the SCS of the CLI-RS), or the frequency domain range (such as FR1 or FR2) or the measurement or reporting quantity corresponding to the CLI (such as LI CLI RSRP or L1 CLI RSSI). Taking X as an example, for instance:

[0211] For FR1, when SCS is less than or equal to 30kHz, X = 1, and when SCS is less than or equal to 60kHz, X = 2;

[0212] For FR2, X = 1 when SCS is 60kHz and X = 2 when SCS is 120kHz.

[0213] Specifically, the scheduling restrictions mentioned above apply to the corresponding serving cell, or if UE2 is configured with intra-band carrier aggregation, the scheduling restrictions apply to symbols that partially or completely overlap with the corresponding restricted symbols on all serving cells within the same band (e.g., when SCS are different, some symbols may overlap).

[0214] In this embodiment, the terminal can perform L1 CLI measurements based on a first timing. The first timing can be a downlink reference timing, an uplink reference timing, or a timing determined by the terminal itself, or a timing determined by the terminal based on the configuration or instructions of the network-side equipment. During L1 CLI measurements, the terminal can utilize its CSI processing unit. Thus, since this embodiment provides the timing used by the terminal for L1 CLI measurements and the processing unit that can be utilized, it facilitates L1 CLI measurements by the terminal, thereby improving the effectiveness of the communication system.

[0215] As shown in Figure 6, this application embodiment also provides an L1 CLI measurement method 600, which can be executed by a network-side device. In other words, the L1 CLI measurement method can be executed by software or hardware installed on the network-side device. The L1 CLI measurement method includes the following steps.

[0216] S602: The network-side device sends configuration or instruction information to the terminal. The configuration or instruction information is used to determine the first timing used for L1 CLI measurement. The first timing is a downlink reference timing, or an uplink reference timing, or it can be determined by the terminal, or it can be determined by the terminal according to the configuration or instruction of the network-side device.

[0217] When a terminal needs to perform L1 CLI measurements, the network-side device can send configuration or instruction information to the terminal so that the terminal can determine the first timing to use when performing L1 CLI measurements. This first timing can be a downlink reference timing, an uplink reference timing, or can be determined by the terminal itself, or determined by the terminal based on the configuration or instruction from the network-side device. For example, the network-side device can configure or instruct the terminal to use a downlink reference timing when performing L1 CLI measurements; then, the terminal can perform L1 CLI measurements according to the downlink reference timing.

[0218] Downlink reference timing can be the downlink reference timing of the serving cell corresponding to the reference signal CLI-RS of L1 CLI measurement (or the serving cell of the subband where the receiving CLI-RS is located / the serving cell where the BWP is located), such as system frame or system frame number (SFN), subframe or subframe index, slot or slot index, symbol or symbol index, etc.

[0219] The uplink reference timing can be the uplink reference timing of the serving cell corresponding to the L1 CLI measurement's reference signal CLI-RS (or the serving cell of the subband where the receiving CLI-RS is located (corresponding to the UL subband) / BWP is located) (which can be determined through downlink reference timing and timing advance (TA)). Examples include system frame or system frame number (SFN), subframe or subframe index, slot or slot index, symbol or symbol index, etc.

[0220] Optionally, in some implementations, the terminal can report its own capability information (such as which first timing the terminal supports for L1 CLI measurement or the timing offset required by the terminal) to the network-side device. The network-side device can send configuration or instruction information to the terminal based on the terminal's capability information to configure or instruct the terminal to use which first timing or time offset when performing L1 CLI measurement.

[0221] S604: The network-side device configures or instructs the terminal to at least one second time offset, the at least one second time offset being used to determine the first timing for performing L1 CLI measurements.

[0222] The second time offset can be a time offset relative to the downlink reference timing, specifically a forward offset relative to the downlink reference timing. The network-side device can configure one or more second time offsets. When the network-side device configures one second time offset, this second time offset can be equal to the uplink transmission TA, or it can be greater than or less than TA; no specific limitation is made here. Optionally, when the CLI-RS corresponding to the L1 CLI measurement includes multiple CLI-RSs, or when the UE is configured with different CLI-RSs, different CLI-RSs can correspond to different second time offsets. When the network-side device configures multiple second time offsets, the minimum value among the multiple second time offsets can be TA, or it can be less than or greater than TA; no specific limitation is made here. The specific implementation method of the terminal determining the first timing for L1 CLI measurement based on at least one second time offset can be found in the corresponding content of the embodiment shown in Figure 2, and will not be described in detail here.

[0223] It should be noted that in some embodiments, the network-side device can execute at least one of S602 and S604 described above. Specifically, when the network-side device executes S602, the terminal determines which first timing to use for L1 CLI measurement based on the configuration or instruction information of the network-side device. When the network-side device executes S604, the terminal can determine a third time offset based on at least one second time offset configured or indicated by the network-side device, and determine the first timing to use for L1 CLI measurement based on the third time offset. When the network-side device executes S602 and S604, if the terminal determines based on the configuration or instruction information of the network-side device that it needs to determine the first timing based on at least one second time offset configured or indicated by the network-side device, the terminal can determine a third time offset based on at least one second time offset, and determine the first timing to use for L1 CLI measurement based on the third time offset.

[0224] When performing L1 CLI measurements at the terminal, considering the terminal's capabilities (the terminal may not be able to simultaneously receive and transmit; for downlink transmission, the terminal may not be able to simultaneously receive according to different timings), the uplink and downlink scheduling of the terminal can be restricted. Optionally, in some implementations, any of the following may be included:

[0225] The network-side equipment does not configure or schedule the first uplink transmission and the first downlink transmission on the first symbol;

[0226] The network-side device does not configure or schedule the first uplink transmission on the first symbol, but configures or schedules the first downlink transmission; or, the network-side device does not configure or schedule the first uplink transmission on the first symbol.

[0227] The first downlink transmission can be, for example, PDCCH, PDSCH, CSI-RS (such as CSI-RS for tracking, CSI-RS for CQI), etc. The first uplink transmission can be, for example, PUCCH, PUSCH, SRS, etc., without specific limitations. The first symbol can include any of the following (g1) to (g3):

[0228] (g1) The symbol of the CLI-RS corresponding to the L1 CLI measurement is used by the terminal for the first timing of the L1 CLI measurement as the downlink reference timing.

[0229] (g2) The symbol corresponding to the CLI-RS for the LI CLI measurement and the X symbols before the first symbol of the CLI-RS for the LI CLI measurement, or the symbol corresponding to the CLI-RS for the LI CLI measurement and taking into account the position of TA, the first timing used by the terminal for L1 CLI measurement is the uplink reference timing.

[0230] The first symbol of the CLI-RS corresponding to the LI CLI measurement is determined based on the downlink reference timing or the uplink reference timing (equivalent to the first symbol being the symbol of the CLI-RS corresponding to the LI CLI measurement, taking into account the position of the TA). Where the CLI-RS corresponding to the LI CLI measurement includes multiple CLI-RSs, the first symbol of the CLI-RS corresponding to the LI CLI measurement is the first symbol of the earliest CLI-RS among these multiple CLI-RSs.

[0231] X is determined by at least one of the following: the SCS of the CLI-RS corresponding to the LI CLI measurement (e.g., the SCS of the activated DL BWP or CLI-RS), the frequency domain range (e.g., FR1 or FR2), and the L1 CLI measurement or reported quantity (e.g., LI CLI RSRP or L1 CLI RSSI). For example, for FR1, X = 1 when the SCS is less than or equal to 30 kHz, and X = 2 when the SCS is less than or equal to 60 kHz; for FR2, X = 1 when the SCS is 60 kHz, and X = 2 when the SCS is 120 kHz.

[0232] (g3) The symbol of the CLI-RS corresponding to the LI CLI measurement and the Y symbols before the first symbol of the CLI-RS corresponding to the LI CLI measurement, or the symbol of the CLI-RS corresponding to the LI CLI measurement and the T1 position before the first symbol of the CLI-RS corresponding to the LI CLI measurement. The first timing used by the terminal for L1 CLI measurement is determined by the terminal according to the configuration or instruction of the network side device or by the terminal itself.

[0233] The first symbol of the CLI-RS corresponding to the LI CLI measurement is determined based on the downlink reference timing, or based on the timing offset T1 before the downlink reference timing (equivalent to the first symbol being the symbol of the CLI-RS corresponding to the LI CLI measurement and the T1 position before the first symbol of the CLI-RS corresponding to the LI CLI measurement). Where the CLI-RS corresponding to the LI CLI measurement includes multiple CLI-RSs, the first symbol of the CLI-RS corresponding to the LI CLI measurement is the first symbol of the earliest CLI-RS among these multiple CLI-RSs.

[0234] T1 is configured or indicated by network-side devices or reported by the terminal.

[0235] Y is defined by the protocol, or relates to at least one of the SCS, frequency domain range, and L1 CLI measurement or reporting quantity of the CLI-RS corresponding to the LI CLI measurement.

[0236] Optionally, in some implementations, the following steps may also be included:

[0237] The network-side device receives CLI reports from the terminal.

[0238] After performing L1 CLI measurements according to the first timing, the terminal can report the corresponding CLI report to the network-side device. The specific implementation of the terminal reporting the CLI report can be found in the corresponding content of the embodiment shown in Figure 2, and will not be described in detail here.

[0239] In this embodiment, the network-side device can send configuration or indication information to the terminal. This configuration or indication information can be used to determine a first timing for performing L1 CLI measurements. This first timing can be a downlink reference timing, an uplink reference timing, or a timing determined by the terminal, or a timing determined by the terminal based on the configuration or indication from the network-side device. Thus, since this embodiment provides the timing used by the terminal when performing L1 CLI measurements, it facilitates L1 CLI measurements by the terminal, thereby improving the effectiveness of the communication system.

[0240] The L1 CLI measurement method provided in this application can be executed by an L1 CLI measurement device. This application uses an L1 CLI measurement device to perform L1 CLI measurements as an example to illustrate the L1 CLI measurement device provided in this application.

[0241] This application provides an L1 CLI measurement device. As an example, the L1 CLI measurement device can be a communication device or a component within a communication device, such as a chip. The communication device can be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal can be, but is not limited to, the type of terminal 11 listed above, and the network-side device can be, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations on these aspects.

[0242] The L1 CLI measurement device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0243] Specifically, referring to Figure 7, when the L1 CLI measurement device is a terminal or a component within a terminal, the L1 CLI measurement device 700 includes a processing module 701, a transmitting module 702, and a receiving module 703, wherein:

[0244] The processing module 701 is used to perform Layer 1 inter-link interference (L1 CLI) measurement according to the first timing.

[0245] Wherein, the first timing is a downlink reference timing, or an uplink reference timing, or is determined by the terminal, or is determined by the terminal according to the configuration or instructions of the network-side equipment;

[0246] The L1 CLI measurement occupies the Channel State Information (CSI) processing unit CPU of the terminal.

[0247] Optionally, in some embodiments, the processing module 701 is further configured to determine the first timing used when performing L1 CLI measurements based on at least one of the following:

[0248] Configuration or instruction information of the network-side device;

[0249] The terminal's capability information;

[0250] The periodicity of the L1 CLI measurement or reporting;

[0251] The measurement quantity of the L1 CLI;

[0252] The reported volume of the L1 CLI;

[0253] The frequency domain subband where the reference signal corresponding to L1 CLI is located.

[0254] Optionally, in some implementations, for periodic or semi-persistent L1 CLI reporting, the L1 CLI measurement of the terminal's CPU usage includes at least one of the following:

[0255] The CPU time occupied by the L1 CLI measurement starts from the first symbol of the inter-link interference reference signal CLI-RS corresponding to the L1 CLI measurement; the first timing is the downlink reference timing;

[0256] The CPU time occupied by the L1 CLI measurement starts X symbols before the first symbol of the CLI-RS corresponding to the LI CLI measurement, or starts from the position after the first symbol of the CLI-RS corresponding to the LI CLI measurement and taking into account the timing advance TA of the uplink transmission; the first timing is the uplink reference timing, and X is specified by the protocol or related to at least one of the subcarrier spacing SCS, frequency range, and L1 CLI measurement or reporting amount of the CLI-RS corresponding to the LI CLI measurement;

[0257] The CPU time occupied by the L1 CLI measurement starts from Y symbols before the first symbol of the CLI-RS corresponding to the LI CLI measurement, or from the T1 position before the first symbol of the CLI-RS corresponding to the LI CLI measurement; the first timing is determined by the terminal according to the configuration or instruction of the network-side device or implemented by the terminal; the T1 is configured or indicated by the network-side device or reported by the terminal; the Y is specified by the protocol or is related to at least one of the SCS, frequency domain range and L1 CLI measurement or reporting quantity of the CLI-RS corresponding to the LI CLI measurement;

[0258] The first symbol of the CLI-RS corresponding to the LI CLI measurement is determined according to the downlink reference timing. When the CLI-RS corresponding to the LI CLI measurement includes multiple CLI-RS, the first symbol of the CLI-RS corresponding to the LI CLI measurement is the first symbol of the earliest CLI-RS among the multiple CLI-RS.

[0259] Optionally, in some embodiments, the processing module 701 is configured to perform any of the following operations on the first symbol:

[0260] First operation: Receive the first downlink transmission configured or scheduled by the network-side device, do not expect the network-side device to configure or schedule the first uplink transmission, or the terminal does not expect the network-side device to configure or schedule the first uplink transmission;

[0261] Second operation: Do not expect to receive the first downlink transmission configured or scheduled by the network-side device, and do not expect the network-side device to configure or schedule the first uplink transmission;

[0262] Third operation: Perform the first operation or the second operation according to the capabilities of the terminal;

[0263] Wherein, the first downlink scheduling includes at least one of the physical downlink control channel PDCCH, physical downlink shared channel PDSCH, and channel state information reference signal CSI-RS, and the first uplink transmission includes at least one of the physical uplink control channel PUCCH, physical uplink shared channel PUSCH, and sounding reference signal SRS.

[0264] The first symbol includes any of the following:

[0265] The symbol of the CLI-RS corresponding to the LI CLI measurement, and the first timing is the downlink reference timing;

[0266] The symbol of the CLI-RS corresponding to the LI CLI measurement and the X symbols before the first symbol of the CLI-RS corresponding to the LI CLI measurement, or the symbol of the CLI-RS corresponding to the LI CLI measurement and taking into account the position of TA, the first timing is the uplink reference timing;

[0267] The first timing is determined by the terminal according to the configuration or instruction of the network-side device or by the terminal itself. The first timing is the symbol of the CLI-RS corresponding to the LI CLI measurement and the Y symbols before the first symbol of the CLI-RS corresponding to the LI CLI measurement, or the T1 position before the first symbol of the CLI-RS corresponding to the LI CLI measurement.

[0268] The first symbol of the CLI-RS corresponding to the LI CLI measurement is determined according to the downlink reference timing. When the CLI-RS corresponding to the LI CLI measurement includes multiple CLI-RS, the first symbol of the CLI-RS corresponding to the LI CLI measurement is the first symbol of the earliest CLI-RS among the multiple CLI-RS.

[0269] Optionally, in some implementations, the measurement results of the L1 CLI do not need to meet the first accuracy requirement or need to meet a second accuracy requirement that is lower than the first accuracy requirement;

[0270] Wherein, the first timing is the downlink reference timing or the uplink reference timing.

[0271] Optionally, in some embodiments, the processing module 701 is further configured to perform at least one of the following:

[0272] L1 CLI measurements are not performed;

[0273] The corresponding measurement results were not reported.

[0274] Report invalid results;

[0275] Do not update measurement results;

[0276] The L1 CLI measurement was reported to be out of range;

[0277] The network-side device CLI-RS is notified that its measurement timing is not aligned with the first timing.

[0278] The network-side device is notified that the terminal cannot detect CLI-RS.

[0279] Optionally, in some implementations, the first timing is the downlink reference timing.

[0280] Optionally, in some embodiments, the downlink reference timing includes the downlink reference timing of the serving cell corresponding to the reference signal CLI-RS corresponding to the L1 CLI measurement.

[0281] Optionally, in some embodiments, the uplink reference timing includes the uplink reference timing of the serving cell corresponding to the reference signal CLI-RS corresponding to the L1 CLI measurement.

[0282] Optionally, in some embodiments, the processing module 701 is further configured to:

[0283] Determine the first time offset; determine the first timing based on the first time offset and the downlink reference timing; or,

[0284] Receive at least one second time offset configured or indicated by the network-side device; determine a third time offset based on the at least one second time offset; determine the first timing based on the third time offset and the downlink reference timing.

[0285] Optionally, in some implementations, the first time offset is a constant;

[0286] Different CLI-RS correspond to different first time offsets.

[0287] Optionally, in some embodiments, the third time offset is determined by the terminal and is not less than the at least one second time offset, or the third time offset is a time offset selected by the terminal from the at least one second time offset.

[0288] Optionally, in some embodiments, the sending module 702 is further configured to:

[0289] Report a CLI report to the network-side device;

[0290] The first uplink symbol of the CLI report reported by the sending module 702 is related to the first timing.

[0291] Optionally, in some embodiments, when the terminal is configured to perform discontinuous reception CDRX, discontinuous transmission Cell DTX, or discontinuous reception Cell DRX in connected mode, the processing module is used for at least one of the following:

[0292] If all symbols of the CLI-RS corresponding to the L1 CLI measurement overlap with the activation period of the CDRX, perform L1 CLI measurement based on the CLI-RS corresponding to the L1 CLI measurement and report the corresponding CLI report.

[0293] If all symbols of the periodic or semi-persistent CLI-RS corresponding to the L1 CLI measurement overlap with the activation period of the Cell DRX, perform L1 CLI measurement based on the periodic or semi-persistent CLI-RS corresponding to the L1 CLI measurement and report the corresponding CLI report.

[0294] When all symbols of the carrying periodic or semi-persistent CLI reporting channel overlap with the activation period of the Cell DRX, the corresponding CLI report is reported.

[0295] Optionally, in some embodiments, when the terminal is configured to perform discontinuous reception CDRX, discontinuous transmission Cell DTX, or discontinuous reception Cell DRX in connected mode, the processing module is further configured to perform at least one of the following:

[0296] If some or all of the symbols of the CLI-RS corresponding to the L1 CLI measurement overlap with the inactive period of the CDRX, L1 CLI measurement will not be performed based on the CLI-RS corresponding to the L1 CLI measurement or the corresponding CLI report will not be reported.

[0297] If some or all of the symbols of the periodic or semi-persistent CLI-RS corresponding to the L1 CLI measurement overlap with the inactive period of the Cell DRX, L1 CLI measurement shall not be performed based on the periodic or semi-persistent CLI-RS corresponding to the L1 CLI measurement or the corresponding CLI report shall not be reported.

[0298] If some or all symbols of the periodic or semi-persistent CLI reporting channel overlap with the inactive period of the Cell DRX, the corresponding CLI report will not be reported.

[0299] Optionally, in some implementations, the first uplink symbol of the CLI report reported by the sending module 702 is not earlier than the second symbol;

[0300] The second symbol is determined based on the downlink reference timing, the uplink reference timing, or the timing reported by the terminal, or the timing determined by the terminal based on the configuration or instruction of the network-side device.

[0301] Referring to Figure 8, when the L1 CLI measurement device is a network-side device or a component within a network-side device, the L1 CLI measurement device 800 includes a transmitting module 801, a processing module 802, and a receiving module 803, wherein:

[0302] The sending module 801 is used for at least one of the following:

[0303] The terminal sends configuration or instruction information to determine the first timing used for L1 CLI measurement; the first timing is a downlink reference timing, or an uplink reference timing, or is determined by the terminal, or is determined by the terminal according to the configuration or instruction of the network-side device.

[0304] Configure or indicate at least one second time offset to the terminal, the at least one second time offset being used to determine the first timing for performing L1 CLI measurements.

[0305] Optionally, in some embodiments, the processing module 802 is used for any of the following:

[0306] The first uplink and first downlink transmissions are not configured or scheduled on the first symbol;

[0307] The first uplink transmission is not configured or scheduled on the first symbol, and the first downlink transmission is configured or scheduled; or, the network-side device does not configure or schedule the first uplink transmission on the first symbol.

[0308] Wherein, the first downlink scheduling includes at least one of PDCCH, PDSCH and CSI-RS, and the first uplink transmission includes at least one of PUCCH, PUSCH and SRS;

[0309] The first symbol includes any of the following:

[0310] The symbol of the CLI-RS corresponding to the LI CLI measurement, and the first timing is the downlink reference timing;

[0311] The symbols of the CLI-RS corresponding to the LI CLI measurement and the X symbols before the first symbol of the CLI-RS corresponding to the LI CLI measurement, or the symbols of the CLI-RS corresponding to the LI CLI measurement taking into account the position of the TA, the first timing is the uplink reference timing, and the X is specified by the protocol or related to at least one of the subcarrier spacing SCS, frequency range and L1 CLI measurement quantity of the CLI-RS corresponding to the LI CLI measurement;

[0312] The symbol of the CLI-RS corresponding to the LI CLI measurement and the Y symbols preceding the first symbol of the CLI-RS corresponding to the LI CLI measurement, or the T1 position preceding the symbol of the CLI-RS corresponding to the LI CLI measurement and the first symbol of the CLI-RS corresponding to the LI CLI measurement, wherein the first timing is determined by the terminal according to the configuration or instruction of the network-side device or implemented by the terminal, wherein the Y is specified by the protocol or is related to at least one of the subcarrier spacing SCS, frequency domain range and L1 CLI measurement or reporting quantity of the CLI-RS corresponding to the LI CLI measurement, and wherein the T1 is configured or indicated by the network-side device or reported by the terminal.

[0313] Optionally, in some embodiments, the receiving module 803 is configured to:

[0314] Receive CLI reports from the terminal.

[0315] In this embodiment, the terminal can perform L1 CLI measurements based on a first timing. The first timing can be a downlink reference timing, an uplink reference timing, or a timing determined by the terminal itself, or a timing determined by the terminal based on the configuration or instructions of the network-side equipment. During L1 CLI measurements, the terminal can utilize its CSI processing unit. Thus, since this embodiment provides the timing used by the terminal for L1 CLI measurements and the processing unit that can be utilized, it facilitates L1 CLI measurements by the terminal, thereby improving the effectiveness of the communication system.

[0316] The L1 CLI measuring device provided in this application embodiment can implement the various processes implemented in the method embodiments of FIG2 and FIG6 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0317] As shown in Figure 9, this application embodiment also provides a communication device 900, including a processor 901 and a memory 902. The memory 902 stores a program or instructions that can run on the processor 901. For example, when the communication device 900 is a terminal, the program or instructions executed by the processor 901 implement the various steps of the L1 CLI measurement method embodiment described above, and achieve the same technical effect. When the communication device 900 is a network-side device, the program or instructions executed by the processor 901 implement the various steps of the L1 CLI measurement method embodiment described above, and achieve the same technical effect. To avoid repetition, this will not be described again here.

[0318] This application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps in the method embodiment shown in FIG2. This terminal embodiment corresponds to the above-described terminal-side method embodiment, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and can achieve the same technical effect. The terminal may be the L1 CLI measurement device shown in FIG7. Specifically, FIG10 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.

[0319] The terminal 1000 includes, but is not limited to, at least some of the following components: radio frequency unit 1001, network module 1002, audio output unit 1003, input unit 1004, sensor 1005, display unit 1006, user input unit 1007, interface unit 1008, memory 1009, and processor 1010.

[0320] Those skilled in the art will understand that the terminal 1000 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to the processor 1010 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in Figure 10 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0321] It should be understood that, in this embodiment, the input unit 1004 may include a graphics processor 10041 and a microphone 10042. The graphics processor 10041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1007 includes a touch panel 10071 and at least one of other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0322] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 1001 can transmit it to the processor 1010 for processing; in addition, the radio frequency unit 1001 can send uplink data to the network-side device. Typically, the radio frequency unit 1001 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0323] The memory 1009 can be used to store software programs or instructions, as well as various data. The memory 1009 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1009 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 1009 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0324] The processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into the processor 1010.

[0325] The processor 1010 is used by the terminal to perform Layer 1 Inter-Link Interference (L1 CLI) measurement according to the first timing.

[0326] Wherein, the first timing is a downlink reference timing, or an uplink reference timing, or is determined by the terminal, or is determined by the terminal according to the configuration or instructions of the network-side equipment;

[0327] The L1 CLI measurement occupies the Channel State Information (CSI) processing unit CPU of the terminal.

[0328] In this way, the terminal can perform L1 CLI measurements according to a first timing, which can be a downlink reference timing, an uplink reference timing, or a timing determined by the terminal itself, or a timing determined by the terminal based on the configuration or instructions of the network-side equipment. During L1 CLI measurements, the terminal can utilize its CSI processing unit. Thus, since this application embodiment provides the timing used by the terminal for L1 CLI measurements and the processing unit that can be utilized, it facilitates L1 CLI measurements by the terminal, thereby improving the effectiveness of the communication system.

[0329] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment shown in Figure 2, and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0330] This application also provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method embodiment shown in FIG6. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0331] Specifically, this application embodiment also provides a network-side device, which may be the L1 CLI measurement device shown in FIG8. As shown in FIG11, the network-side device 1100 includes: an antenna 111, a radio frequency device 112, a baseband device 113, a processor 114, and a memory 115. The antenna 111 is connected to the radio frequency device 112. In the uplink direction, the radio frequency device 112 receives information through the antenna 111 and sends the received information to the baseband device 113 for processing. In the downlink direction, the baseband device 113 processes the information to be transmitted and sends it to the radio frequency device 112. The radio frequency device 112 processes the received information and transmits it through the antenna 111.

[0332] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 113, which includes a baseband processor.

[0333] The baseband device 113 may include at least one baseband board, on which multiple chips are disposed, as shown in FIG11. One of the chips is, for example, a baseband processor, which is connected to the memory 115 via a bus interface to call the program in the memory 115 and execute the network device operation shown in the above method embodiment.

[0334] The network-side device may also include a network interface 116, such as a Common Public Radio Interface (CPRI).

[0335] Specifically, the network-side device 1100 in this application embodiment further includes: instructions or programs stored in memory 115 and executable on processor 114. Processor 114 calls the instructions or programs in memory 115 to execute the methods executed by each module shown in FIG8 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0336] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the L1 CLI measurement method embodiments described above and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0337] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0338] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described L1 CLI measurement method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0339] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0340] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the L1 CLI measurement method embodiments described above, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0341] This application also provides an L1 CLI measurement system, including: a terminal and a network-side device. The terminal can be used to execute the steps of the L1 CLI measurement method as shown in Figure 2 above, and the network-side device can be used to execute the steps of the L1 CLI measurement method as shown in Figure 6 above.

[0342] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0343] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0344] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A method of L1 CLI measurement, comprising: a terminal performing a layer 1 cross-link interference (L1 CLI) measurement according to a first timing; wherein the first timing is a downlink reference timing, or an uplink reference timing, or determined by the terminal implementation, or determined by the terminal according to a configuration or indication of a network side device; the L1 CLI measurement occupies a channel state information (CSI) processing unit (CPU) of the terminal.

2. The method of claim 1, wherein, The terminal determines the first timing employed when performing the L1 CLI measurement according to at least one of the following: configuration or indication information of the network side device; capability information of the terminal; periodicity of the L1 CLI measurement or reporting; a measurement quantity of the L1 CLI; a reporting quantity of the L1 CLI; a frequency domain sub-band where a reference signal corresponding to the L1 CLI is located.

3. The method of claim 1 or 2, wherein, For periodic or semi-persistent L1 CLI reporting, the L1 CLI measurement occupying the CPU of the terminal comprises at least one of the following: the time of the CPU occupied by the L1 CLI measurement starts from a first symbol of a cross-link interference reference signal (CLI-RS) corresponding to the L1 CLI measurement; the first timing is the downlink reference timing; the time of the CPU occupied by the L1 CLI measurement starts from X symbols before a first symbol of a CLI-RS corresponding to the L1 CLI measurement, or from a position after a first symbol of a CLI-RS corresponding to the L1 CLI measurement and considering timing advance (TA) of uplink transmission; the first timing is the uplink reference timing, and the X is specified by a protocol, or related to at least one of a subcarrier spacing (SCS) of the CLI-RS corresponding to the L1 CLI measurement, a frequency domain range, and a L1 CLI measurement or reporting quantity; the time of the CPU occupied by the L1 CLI measurement starts from Y symbols before a first symbol of a CLI-RS corresponding to the L1 CLI measurement, or from a T1 position before a first symbol of a CLI-RS corresponding to the L1 CLI measurement; the first timing is determined by the terminal according to a configuration or indication of a network side device or determined by the terminal implementation, the T1 is configured or indicated by the network side device or reported by the terminal, and the Y is specified by a protocol or related to at least one of a SCS of the CLI-RS corresponding to the L1 CLI measurement, a frequency domain range, and a L1 CLI measurement or reporting quantity; wherein the first symbol of the CLI-RS corresponding to the L1 CLI measurement is determined according to the downlink reference timing, and in a case where the CLI-RS corresponding to the L1 CLI measurement comprises a plurality of CLI-RSs, the first symbol of the CLI-RS corresponding to the L1 CLI measurement is a first symbol of an earliest one of the plurality of CLI-RSs.

4. The method of claim 1 or 2, wherein, on the first symbol, the method further comprises any of the following operations: The first operation: the terminal receives the first downlink transmission configured or scheduled by the network side device, does not expect the network side device to configure or schedule the first uplink transmission, or the terminal does not expect the network side device to configure or schedule the first uplink transmission; The second operation: the terminal does not expect to receive the first downlink transmission configured or scheduled by the network side device, and does not expect the network side device to configure or schedule the first uplink transmission; The third operation: the terminal performs the first operation or the second operation according to the capability of the terminal; The first downlink scheduling includes at least one of a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), and a channel state information reference signal (CSI-RS), and the first uplink transmission includes at least one of a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), and a sounding reference signal (SRS); The first symbol includes any of the following: The symbol of the CLI-RS corresponding to the LI CLI measurement, and the first timing is the downlink reference timing; The symbol of the CLI-RS corresponding to the LI CLI measurement and X symbols before the first symbol of the CLI-RS corresponding to the LI CLI measurement, or the symbol of the CLI-RS corresponding to the LI CLI measurement considering the position of TA, and the first timing is the uplink reference timing; The symbol of the CLI-RS corresponding to the LI CLI measurement and Y symbols before the first symbol of the CLI-RS corresponding to the LI CLI measurement, or the symbol of the CLI-RS corresponding to the LI CLI measurement and the T1 position before the first symbol of the CLI-RS corresponding to the LI CLI measurement, and the first timing is determined by the terminal according to the configuration or indication of the network side device or determined by the terminal; Wherein, the first symbol of the CLI-RS corresponding to the LI CLI measurement is determined according to the downlink reference timing, and in the case that the CLI-RS corresponding to the LI CLI measurement includes multiple CLI-RSs, the first symbol of the CLI-RS corresponding to the LI CLI measurement is the first symbol of the earliest one of the multiple CLI-RSs.

5. The method of claim 1 or 2, wherein, The measurement result of the L1 CLI does not need to meet the first accuracy requirement or needs to meet the second accuracy requirement lower than the first accuracy requirement; Wherein, the first timing is the downlink reference timing, or the uplink reference timing.

6. The method of claim 1 or 2, wherein, In the case that the terminal does not detect the CLI-RS according to the first timing, the method further includes at least one of the following: The terminal does not perform L1 CLI measurement; The terminal does not report the corresponding measurement result; The terminal reports an invalid result; The terminal does not update the measurement result; The terminal reports that the L1 CLI measurement is out of range; The terminal informs the network side device that the measurement timing of the CLI-RS is not aligned with the first timing; The terminal informs the network side device that the terminal cannot detect the CLI-RS.

7. The method of claim 6, wherein, The first timing is the downlink reference timing.

8. The method according to any one of claims 1 to 7, wherein, The downlink reference timing comprises a downlink reference timing of a serving cell corresponding to a reference signal CLI-RS corresponding to the L1 CLI measurement.

9. The method according to any one of claims 1 to 5, wherein, The uplink reference timing comprises an uplink reference timing of a serving cell corresponding to a reference signal CLI-RS corresponding to the L1 CLI measurement.

10. The method of claim 1 or 2, wherein, The method further comprises: The terminal determines a first time offset; the terminal determines the first timing according to the first time offset and the downlink reference timing; or, The terminal receives at least one second time offset configured or indicated by the network side device; the terminal determines a third time offset according to the at least one second time offset; the terminal determines the first timing according to the third time offset and the downlink reference timing.

11. The method of claim 10, wherein, The first time offset is a constant. Different CLI-RSs correspond to different first time offsets.

12. The method of claim 10, wherein, The third time offset is determined by the terminal and is not less than the at least one second time offset, or the third time offset is a time offset selected by the terminal from the at least one second time offset.

13. The method according to any one of claims 1 to 12, wherein, The method further comprises: The terminal reports a CLI report to the network side device; The first uplink symbol at which the terminal reports the CLI report is related to the first timing.

14. The method of claim 13, wherein, In a case where the terminal is configured with a connected state discontinuous reception (CDRX) or a cell discontinuous transmission (Cell DTX) or a cell discontinuous reception (Cell DTX), the terminal reports a CLI report to the network side device, including at least one of the following: In a case where all symbols of a CLI-RS corresponding to the L1 CLI measurement overlap with an active period of the CDRX, the terminal performs L1 CLI measurement based on the CLI-RS corresponding to the L1 CLI measurement and reports a corresponding CLI report; In a case where all symbols of a periodic or semi-persistent CLI-RS corresponding to the L1 CLI measurement overlap with an active period of the Cell DTX, the terminal performs L1 CLI measurement based on the periodic or semi-persistent CLI-RS corresponding to the L1 CLI measurement and reports a corresponding CLI report; In a case where all symbols of a periodic or semi-persistent CLI report channel overlap with an active period of the Cell DTX, the terminal reports a corresponding CLI report.

15. The method of claim 13 or 14, wherein, In a case where the terminal is configured with a connected state discontinuous reception (CDRX) or a cell discontinuous transmission (Cell DTX) or a cell discontinuous reception (Cell DTX), the method further comprises at least one of the following: In a case where part or all symbols of a CLI-RS corresponding to the L1 CLI measurement overlap with an inactive period of the CDRX, the terminal does not perform L1 CLI measurement based on the CLI-RS corresponding to the L1 CLI measurement or does not report a corresponding CLI report; In a case that part or all of symbols of the periodic or semi-persistent CLI-RS corresponding to the L1 CLI measurement overlaps with the inactivity period of the Cell DRX, the terminal does not perform L1 CLI measurement based on the periodic or semi-persistent CLI-RS corresponding to the L1 CLI measurement or does not report the corresponding CLI report; In a case that part or all of symbols of the periodic or semi-persistent CLI report channel overlaps with the inactivity period of the Cell DRX, the terminal does not report the corresponding CLI report.

16. The method according to any one of claims 13 to 15, wherein, The first uplink symbol time at which the terminal reports the CLI report is not earlier than a second symbol; The second symbol is determined according to the downlink reference timing, the uplink reference timing, or a timing reported by the terminal or determined by the terminal according to configuration or indication of the network side device.

17. An L1 CLI measurement method, comprising at least one of the following: A network side device sends configuration or indication information to a terminal, the configuration or indication information being used to determine a first timing for performing L1 CLI measurement; the first timing being a downlink reference timing, or an uplink reference timing, or determined by the terminal, or determined by the terminal according to configuration or indication of the network side device; The network side device configures or indicates at least one second time offset to the terminal, the at least one second time offset being used to determine the first timing for performing L1 CLI measurement.

18. The method of claim 17, wherein, The method further comprises any of the following: The network side device does not configure or schedule a first uplink transmission and a first downlink transmission on a first symbol; The network side device does not configure or schedule a first uplink transmission on the first symbol, and configures or schedules a first downlink transmission; or, the network side device does not configure or schedule a first uplink transmission on the first symbol; The first downlink scheduling comprises at least one of PDCCH, PDSCH and CSI-RS, and the first uplink transmission comprises at least one of PUCCH, PUSCH and SRS; The first symbol comprises any of the following: The symbol of the CLI-RS corresponding to the LI CLI measurement, and the first timing is the downlink reference timing; The symbol of the CLI-RS corresponding to the LI CLI measurement and X symbols before the first symbol of the CLI-RS corresponding to the LI CLI measurement, or the symbol of the CLI-RS corresponding to the LI CLI measurement considering the position of TA, and the first timing is the uplink reference timing, and the X is determined by a protocol, or related to at least one of the subcarrier spacing SCS, frequency domain range and L1 CLI measurement quantity of the CLI-RS corresponding to the LI CLI measurement; a symbol of a CLI-RS corresponding to the LI CLI measurement and Y symbols before a first symbol of the CLI-RS corresponding to the LI CLI measurement, or a symbol of a CLI-RS corresponding to the LI CLI measurement and a T1 position before a first symbol of the CLI-RS corresponding to the LI CLI measurement, the first timing being determined by the terminal according to configuration or indication of a network-side device or determined by the terminal, the Y being specified by a protocol or related to at least one of a subcarrier spacing SCS, a frequency range and a L1 CLI measurement or reporting quantity of the CLI-RS corresponding to the LI CLI measurement, the T1 being configured or indicated by the network-side device or reported by the terminal.

19. The method of claim 17 or 18, wherein, The method further includes: The network-side device receives the CLI report reported by the terminal.

20. An L1 CLI measurement apparatus, comprising: a processing module configured to perform a layer 1 cross-link interference (L1 CLI) measurement according to a first timing; wherein the first timing is a downlink reference timing, or an uplink reference timing, or determined by a terminal, or determined by the terminal according to configuration or indication of a network-side device; the L1 CLI measurement occupies a channel state information (CSI) processing unit (CPU) of the terminal.

21. The apparatus of claim 20, wherein, The processing module is configured to determine the first timing employed when performing the L1 CLI measurement according to at least one of the following: configuration or indication information of the network-side device; capability information of the terminal; periodicity of the L1 CLI measurement or reporting; a measurement quantity of the L1 CLI; a reporting quantity of the L1 CLI; a frequency domain subband where a reference signal corresponding to the L1 CLI is located.

22. The apparatus of claim 20 or 21, wherein, For periodic or semi-persistent L1 CLI reporting, the L1 CLI measurement occupying the CPU of the terminal includes at least one of the following: a time of the CPU occupied by the L1 CLI measurement starts from a first symbol of a cross-link interference reference signal (CLI-RS) corresponding to the LI CLI measurement; and the first timing is the downlink reference timing; a time of the CPU occupied by the L1 CLI measurement starts from X symbols before a first symbol of a CLI-RS corresponding to the LI CLI measurement, or from a position after a first symbol of the CLI-RS corresponding to the LI CLI measurement and considering timing advance (TA) of uplink transmission; and the first timing is the uplink reference timing, and the X is specified by a protocol or related to at least one of a subcarrier spacing (SCS), a frequency range and a L1 CLI measurement or reporting quantity of the CLI-RS corresponding to the LI CLI measurement. The L1 CLI measurement occupies a time of a CPU from Y symbols before a first symbol of a CLI-RS corresponding to the L1 CLI measurement or from a T1 position before the first symbol of the CLI-RS corresponding to the L1 CLI measurement; the first timing is determined by the terminal according to configuration or indication of a network side device or is determined by the terminal; the T1 is configured or indicated by the network side device or is reported by the terminal; and the Y is defined by a protocol or is related to at least one of SCS, frequency domain range, and L1 CLI measurement or reporting quantity of the CLI-RS corresponding to the L1 CLI measurement. The first symbol of the CLI-RS corresponding to the L1 CLI measurement is determined according to the downlink reference timing, and in a case where the CLI-RS corresponding to the L1 CLI measurement includes a plurality of CLI-RSs, the first symbol of the CLI-RS corresponding to the L1 CLI measurement is a first symbol of an earliest one of the plurality of CLI-RSs.

23. The apparatus of claim 20 or 21, wherein, The processing module is further configured to perform any one of the following operations on the first symbol: A first operation: receiving a first downlink transmission configured or scheduled by the network side device, not expecting a first uplink transmission configured or scheduled by the network side device, or not expecting the first uplink transmission configured or scheduled by the network side device; A second operation: not expecting to receive a first downlink transmission configured or scheduled by the network side device, and not expecting a first uplink transmission configured or scheduled by the network side device; A third operation: performing the first operation or the second operation according to a capability of the terminal. The first downlink scheduling includes at least one of a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), and a channel state information reference signal (CSI-RS), and the first uplink transmission includes at least one of a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), and a sounding reference signal (SRS). The first symbol includes any one of the following: A symbol of the CLI-RS corresponding to the L1 CLI measurement, and the first timing is the downlink reference timing; A symbol of the CLI-RS corresponding to the L1 CLI measurement and X symbols before a first symbol of the CLI-RS corresponding to the L1 CLI measurement, or a symbol of the CLI-RS corresponding to the L1 CLI measurement and a position considering a TA, and the first timing is the uplink reference timing; A symbol of the CLI-RS corresponding to the L1 CLI measurement and Y symbols before a first symbol of the CLI-RS corresponding to the L1 CLI measurement, or a symbol of the CLI-RS corresponding to the L1 CLI measurement and a T1 position before the first symbol of the CLI-RS corresponding to the L1 CLI measurement, and the first timing is determined by the terminal according to configuration or indication of a network side device or is determined by the terminal. The first symbol of the CLI-RS corresponding to the LI CLI measurement is determined according to the downlink reference timing, and in the case that the CLI-RS corresponding to the LI CLI measurement includes multiple CLI-RSs, the first symbol of the CLI-RS corresponding to the LI CLI measurement is the first symbol of the earliest one of the multiple CLI-RSs.

24. The apparatus of claim 20 or 21, wherein, The measurement result of the L1 CLI does not need to meet a first accuracy requirement or needs to meet a second accuracy requirement lower than the first accuracy requirement. The first timing is the downlink reference timing or the uplink reference timing.

25. The apparatus of claim 20 or 21, wherein, The processing module is further configured to perform at least one of the following: not performing the L1 CLI measurement; not reporting the corresponding measurement result; reporting an invalid result; not updating the measurement result; reporting that the L1 CLI measurement is out of range; informing the network-side device that the measurement timing of the CLI-RS is not aligned with the first timing; informing the network-side device that the terminal cannot detect the CLI-RS.

26. The apparatus method of claim 25, wherein, The first timing is the downlink reference timing.

27. The apparatus of any one of claims 20 to 26, wherein, The downlink reference timing includes the downlink reference timing of a serving cell corresponding to a reference signal CLI-RS corresponding to the L1 CLI measurement.

28. The apparatus of any one of claims 20 to 24, wherein, The uplink reference timing includes the uplink reference timing of a serving cell corresponding to a reference signal CLI-RS corresponding to the L1 CLI measurement.

29. The apparatus of claim 20 or 21, wherein, The processing module is further configured to: determine a first time offset, determine the first timing according to the first time offset and the downlink reference timing, or receive at least one second time offset configured or indicated by the network-side device, determine a third time offset according to the at least one second time offset, and determine the first timing according to the third time offset and the downlink reference timing.

30. The apparatus of claim 29, wherein, The first time offset is a constant. Different CLI-RSs correspond to different first time offsets.

31. The apparatus of claim 29, wherein, The third time offset is determined by the terminal and is not less than the at least one second time offset, or the third time offset is a time offset selected by the terminal from the at least one second time offset.

32. The apparatus of any one of claims 20 to 31, wherein, Further comprising: a sending module configured to report a CLI report to the network-side device. The first uplink symbol at which the sending module reports the CLI report is related to the first timing.

33. The apparatus of claim 32, wherein, In the case that the terminal is configured with a connected state discontinuous reception CDRX or a cell discontinuous transmission Cell DTX or a cell discontinuous reception Cell DRX, the processing module is configured to perform at least one of the following: In the case that all symbols of the CLI-RS corresponding to the L1 CLI measurement overlap with an active period of the CDRX, performing the L1 CLI measurement based on the CLI-RS corresponding to the L1 CLI measurement and reporting a corresponding CLI report. In a case that all symbols of the periodic or semi-persistent CLI-RS corresponding to the L1 CLI measurement overlap with the active period of the Cell DRX, performing L1 CLI measurement based on the periodic or semi-persistent CLI-RS corresponding to the L1 CLI measurement and reporting a corresponding CLI report; In a case that all symbols of the periodic or semi-persistent CLI report channel overlap with the active period of the Cell DRX, reporting a corresponding CLI report.

34. The apparatus of claim 32 or 33, wherein, In a case that the terminal is configured with a connected state discontinuous reception (CDRX) or a cell discontinuous transmission (Cell DTX) or a cell discontinuous reception (Cell DRX), the processing module further comprises at least one of the following: In a case that part or all symbols of the CLI-RS corresponding to the L1 CLI measurement overlap with the inactive period of the CDRX, not performing L1 CLI measurement based on the CLI-RS corresponding to the L1 CLI measurement or not reporting a corresponding CLI report; In a case that part or all symbols of the periodic or semi-persistent CLI-RS corresponding to the L1 CLI measurement overlap with the inactive period of the Cell DRX, not performing L1 CLI measurement based on the periodic or semi-persistent CLI-RS corresponding to the L1 CLI measurement or not reporting a corresponding CLI report; In a case that part or all symbols of the periodic or semi-persistent CLI report channel overlap with the inactive period of the Cell DRX, the sending module is configured to not report a corresponding CLI report.

35. The apparatus of any one of claims 32 to 34, wherein, The sending module reports the CLI report in a first uplink symbol time which is not earlier than a second symbol; The second symbol is determined according to the downlink reference timing, the uplink reference timing, or a timing reported by the terminal or determined by the terminal according to a configuration or indication of the network side device.

36. An L1 CLI measurement apparatus, comprising a sending module configured to perform at least one of the following: sending configuration or indication information to a terminal, the configuration or indication information being used to determine a first timing for performing L1 CLI measurement; the first timing being a downlink reference timing, or an uplink reference timing, or determined by the terminal, or determined by the terminal according to a configuration or indication of a network side device; configuring or indicating at least one second time offset to the terminal, the at least one second time offset being used to determine the first timing for performing L1 CLI measurement.

37. A terminal, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement steps of the L1 CLI measurement method according to any one of claims 1 to 16.

38. A network side device, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement steps of the L1 CLI measurement method according to any one of claims 17 to 19. 39.A readable storage medium, on which a program or instructions are stored, the program or instructions are executed by a processor to implement steps of the L1 CLI measurement method according to any one of claims 1 to 16, or to implement steps of the L1 CLI measurement method according to any one of claims 17 to 19.

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