A CLI measurement method and communication device

Abstract

This application discloses a method and communication device for measuring CLI. The method includes: a terminal device receiving resource configuration information from a network device, the resource configuration information being used to instruct the terminal device on resources for measuring CLI; and when a specific condition is met, the terminal device canceling CLI measurement on at least one symbol including the resources for measuring CLI. This application clarifies when the terminal device cancels CLI measurement, thereby avoiding communication anomalies caused by conflicts between symbols containing resources used for other purposes and symbols containing resources for measuring CLI.

Description

Technical Field

[0001] The present application relates to the technical field of interference measurement, and in particular to a method and a communication device for measuring cross-link interference (Cross-link Interference, CLI). Background Art

[0002] Time division duplexing (TDD) uses time division to achieve uplink and downlink transmission. In TDD communication mode, reception and transmission in the communication system occur at different times on the same frequency. When the TDD uplink and downlink patterns (TDD UL / DL) differ between adjacent cells, data transmitted in one cell may interfere with data received in another cell. This interference is called cross-link interference (CLI).

[0003] To reduce or avoid CLI, network devices configure resources for terminal devices to measure CLI. The network devices coordinate and schedule the resources for use by the terminal devices based on the terminal devices' measurement results. However, if some or all of the resources configured for CLI measurement are directed for other purposes, the terminal device cannot determine the intended use of the resources, resulting in communication anomalies. Summary of the Invention

[0004] The present application provides a CLI measurement method and a communication device for clarifying the conditions for measuring CLI of a terminal device to minimize communication anomalies.

[0005] In a first aspect, a communication method is provided, the method comprising:

[0006] A terminal device receives resource configuration information from a network device, instructing the terminal device to measure a first resource for a CLI. When a first specific condition is met, the terminal device cancels CLI measurement for at least one symbol, where the at least one symbol includes the symbol where the first resource is located. This solution, by clarifying the specific conditions for canceling CLI measurement, can avoid communication anomalies caused by conflicts in the configured CLI measurement resources.

[0007] In one possible implementation, at least one symbol includes the symbol where the first resource is located and N0 symbols before the symbol where the first resource is located, and N0 is a positive integer. That is, N0 is an integer greater than or equal to 1. Since the distance between terminal devices is usually smaller than the distance between terminal devices and network devices, for example, the signal from the first terminal device to the second terminal device will arrive at the second terminal device earlier than the signal from the network device to the second terminal device. Therefore, the terminal device will measure the CLI in advance. That is, the symbols actually used by the terminal device to measure the CLI are the symbol where the first resource is located and N0 symbols before the symbol where the first resource is located. In this solution, if the first specific condition is met, the terminal device will cancel the measurement of CLI on the symbol where the first resource is located, and also cancel the measurement of CLI on the N0 symbols, so as to avoid conflicts in the resources used to measure the CLI as much as possible.

[0008] In one possible implementation, the first specific condition includes one or more of the following conditions:

[0009] Condition 1: At least one symbol partially or completely overlaps with the symbol where the second resource is located, and the symbol where the second resource is located is an uplink symbol. Since at least one symbol is used to measure CLI, when at least one symbol partially or completely overlaps with the uplink symbol where the second resource is located, that is, when part or all of the at least one symbol used to measure CLI is used for both downlink transmission and uplink transmission. In this case, the terminal device cancels measuring CLI on at least one symbol. That is, when the resource used to measure CLI partially or completely overlaps with the resource used for uplink transmission, in order to avoid a conflict between the at least one symbol, the terminal device cancels measuring CLI.

[0010] In an optional implementation, the symbol where the second resource is located may be configured as an uplink symbol by radio resource control (RRC) signaling. Alternatively, the symbol where the second resource is located may also be indicated as an uplink symbol by a slot format indicator (SFI).

[0011] Condition 2: At least one symbol partially or completely overlaps with the third resource, and the third resource includes one or more symbols where valid physical random access channel (PRACH) opportunities are located. Alternatively, the third resource includes one or more symbols where valid PRACH opportunities are located, and N before the one or more valid PRACH opportunities. gap At least one symbol among the N symbols, the N gap is an integer greater than or equal to 0.

[0012] Since the symbols where one or more valid PRACH opportunities are located should be uplink symbols or flexible symbols, the N symbols before one or more valid PRACH opportunities gap The symbol should be an uplink symbol or a flexible symbol. The terminal device measures the CLI on at least one symbol, and the terminal device considers the at least one symbol to be a downlink symbol. Therefore, when the at least one symbol partially or completely overlaps with the third resource, that is, when there is a conflict with the at least one symbol, the terminal device cancels the CLI measurement to avoid affecting the transmission of signals on valid PRACH occasions.

[0013] Condition three: one or more symbols in the at least one symbol are indicated by downlink control information (DCI) to be used for sending an uplink signal or receiving a downlink signal.

[0014] When the resources used to measure CLI overlap with the resources of the uplink signal scheduled by DCI or the downlink signal indicated by DCI by one or more symbols in the time domain, the resources used for CLI are preferentially used to send the uplink signal scheduled by DCI or receive the downlink signal indicated by DCI.

[0015] In an optional implementation, the first resource is configured by RRC for measuring CLI, one or more symbols of the at least one symbol are indicated by DCI for sending an uplink signal, and the terminal device cancels measuring CLI.

[0016] In an optional implementation, the first resource is indicated by DCI for measuring CLI, and one or more symbols of the at least one symbol are indicated by DCI for sending uplink signals. The terminal device does not want this situation to occur, and when this situation occurs, the terminal device cancels measuring CLI.

[0017] In an optional implementation, the at least one symbol partially or completely overlaps with the symbol where the fourth resource is located, and the subcarrier where the fourth resource is located partially or completely overlaps with at least one subcarrier, wherein the at least one subcarrier includes the subcarrier where the first resource is located. For example, the first resource is configured by RRC for measuring CLI, and the fourth resource is indicated by DCI for receiving downlink signals, and the terminal device cancels the measurement of CLI. For another example, the at least one symbol is indicated by DCI for measuring CLI, and the fourth resource is indicated by DCI for receiving downlink signals. The terminal device does not want this situation to occur, and when this situation occurs, the terminal device cancels the measurement of CLI.

[0018] In one possible implementation, the first resource is configured by RRC for measuring CLI, and one or more of the at least one symbol are configured by RRC to send an uplink signal or receive a downlink signal. Alternatively, the at least one symbol is indicated by DCI for measuring CLI, and one or more of the at least one symbol are configured by RRC to send an uplink signal or receive a downlink signal. The terminal device also does not want these situations to occur. When these situations occur, the terminal device cancels measuring CLI.

[0019] Condition four: one or more of the at least one symbol is configured by RRC as a flexible symbol or RRC does not configure the type of the at least one symbol, and the at least one symbol has an SFI configuration, the terminal device does not detect the SFI, and the terminal device does not detect the DCI indication in the first resource measurement CLI. Alternatively, one or more of the at least one symbol is configured by RRC as a flexible symbol or RRC does not configure the type of the at least one symbol, the terminal device detects that the SFI indicates that one or more of the at least one symbol is a flexible symbol, and the terminal device does not detect the DCI indication in the first resource measurement CLI.

[0020] In this solution, although the network device configures the first resource for measuring CLI for the terminal device, the network device configures one or more symbols of the at least one symbol as flexible symbols through RRC, or the network device does not explicitly configure the at least one symbol as an uplink symbol or a downlink symbol or a flexible symbol. When the at least one symbol has an SFI configuration and the terminal device does not detect the SFI, the terminal device may consider that the direction of one or more symbols of the at least one symbol is not configured. When the terminal device detects that the SFI indicates that one or more symbols of the at least one symbol are flexible symbols, the terminal device considers these symbols to be reserved symbols. In this case, if there is no DCI instructing the terminal device to measure CLI on the first resource, the terminal device does not measure CLI on at least one symbol, which can avoid a conflict between the terminal device measuring CLI on at least one symbol and using at least one symbol to send an uplink signal or receive a downlink signal.

[0021] Condition five: The terminal device is configured with multiple service cells, which include a reference cell and other cells. The other cells are service cells other than the reference cell in the service cells, and the transmission direction of at least one symbol in the reference cell is different from the transmission direction of at least one symbol in the other cells.

[0022] In one possible implementation, the first resource is configured by RRC in a reference cell for measuring CLI, and one or more of the at least one symbol is indicated by DCI in other cells for sending uplink signals or receiving downlink signals. In this solution, it is assumed that the first resource is used to measure CLI in the reference cell. Since one or more of the at least one symbol is indicated by DCI in other cells for sending uplink signals or receiving downlink signals, that is, it is used for both measuring CLI and sending uplink signals or receiving downlink signals, such as a physical downlink shared channel (PDSCH), a physical downlink control channel (PDCCH) or a channel state information reference signal (CSI-RS), in order to avoid a conflict between the at least one symbol, the terminal device cancels measuring CLI.

[0023] Condition five may also be: the first resource is configured by RRC in the other cell for CLI measurement, and one or more of the at least one symbol is configured by RRC as uplink symbols in the reference cell. If the first resource is used for CLI measurement in the reference cell, but one or more of the at least one symbol is configured as uplink symbols in the other cell, a conflict may still occur. To avoid a conflict for the at least one symbol, the terminal device cancels CLI measurement.

[0024] Condition five may also be: the first resource is configured by RRC in the other cell for measuring CLI, and one or more of the at least one symbol is configured by RRC in the reference cell as a symbol for sending an uplink signal or receiving a downlink. To avoid a conflict between the at least one symbol, the terminal device cancels measuring CLI.

[0025] As an optional implementation, in condition four, the frequency band corresponding to the reference cell of the symbol where the first resource is located may be the same as or different from the frequency band corresponding to the symbol where the first resource is located in other cells.

[0026] As an optional implementation, the first resource is configured by RRC in the serving cell for measuring CLI, and one or more symbols of the at least one symbol have different transmission directions in the reference cell and other cells. For example, the at least one symbol is configured by RRC as a downlink symbol in the reference cell, and one or more symbols of the at least one symbol are configured by RRC as uplink symbols in other cells. For another example, the at least one symbol is configured by RRC as an uplink symbol in the reference cell, and one or more symbols of the at least one symbol are configured by RRC as downlink symbols in other cells. Under this implementation, the frequency band of the reference cell is different from the frequency band of the other cells. If the symbol has different directions in the reference cell and the other cell, the terminal device may regard the symbol as a flexible symbol, and the terminal device is not required to receive a downlink signal, nor does it expect to send an uplink signal in the symbol. Therefore, one or more symbols of the at least one symbol have different transmission directions in the reference cell and the other cell, and the terminal device may cancel measuring CLI.

[0027] As an optional implementation, the terminal device meets one or more of the following four characteristics: the terminal device supports half-duplex mode, and the terminal device is configured with multiple serving cells; the terminal device does not support simultaneous transmission and reception in any serving cell; the terminal device has half-duplex capability of unpaired spectrum carrier aggregation (CA); the terminal device has no SFI configuration in any serving cell. In this solution, some restrictions are imposed on the terminal device, for example, the terminal device supports half-duplex mode, that is, the terminal device cannot send and receive at the same time. For another example, if the terminal device has no SFI configuration in any serving cell, it can be considered that the transmission direction of the symbols in the serving cell is configured through RRC. That is, the transmission direction of the symbols in the serving cell has been configured. In these cases, when one or more symbols of at least one symbol are used, for example, to send an uplink signal, a resource conflict occurs, and the terminal device cancels the measurement of CLI to give priority to sending an uplink signal or receiving a downlink signal. If the terminal device does not meet the above characteristics, resource conflict may not occur, and the terminal device can measure CLI according to the configuration of the network device.

[0028] In a second aspect, another method for measuring CLI is provided, the method comprising:

[0029] Receive resource configuration information from a network device, where the resource configuration information is used to instruct the terminal device to measure a first resource for CLI; when a second specific condition is met, measure CLI on at least one symbol. The at least one symbol includes the symbol where the first resource is located, or the at least one symbol includes the symbol where the first resource is located and N0 symbols before the symbol where the first resource is located. Considering that the network device can indicate the resources for measuring CLI through DCI, but the specific type of the at least one symbol may also be indicated by SFI, in this case, the resources for measuring CLI may conflict. This solution further clarifies the specific conditions for the terminal device to measure CLI to avoid conflicts among the at least one symbol, thereby minimizing communication abnormalities of the terminal device.

[0030] In one possible implementation, the second specific condition includes, but is not limited to, one or more of the following conditions:

[0031] Condition 1: The first resource is configured by RRC for measuring CLI, and the at least one symbol is configured by RRC as a downlink symbol. In this case, even if the terminal device measures CLI on the at least one symbol, it will not cause a conflict for at least one symbol.

[0032] Condition two, the first resource is configured by RRC for measuring CLI, one or more symbols of the at least one symbol are configured by RRC as flexible symbols, the symbols of the at least one symbol other than the flexible symbols are configured by RRC as downlink symbols, and the terminal device is not configured with SFI, and the terminal device does not detect DCI indicating that uplink signals are sent or downlink signals are received on one or more symbols of the at least one symbol. Under this condition, one or more symbols of the at least one symbol are flexible symbols, and the symbols of the at least one symbol other than the flexible symbols are downlink symbols. If the terminal device is not configured with SFI, the direction of the at least one symbol will not be changed by SFI. Furthermore, the terminal device does not detect DCI indicating that uplink signals are sent or downlink signals are received on one or more symbols of the at least one symbol, then the at least one symbol is not an uplink symbol. Therefore, the terminal device may consider the at least one symbol to be a downlink symbol. In this case, the terminal device can measure CLI on the at least one symbol without causing a conflict of at least one symbol.

[0033] Condition three, the first resource is configured by RRC for measuring CLI, RRC does not configure the type of the at least one symbol, and the terminal device is not configured with SFI, and the terminal does not detect DCI indicating that an uplink signal is sent or a downlink signal is received on one or more symbols of the at least one symbol. Since the at least one symbol does not clearly specify what type of symbol it is, the at least one symbol can be used as a downlink symbol or as an uplink symbol. If the terminal device is not configured with SFI, the direction of the at least one symbol will not be changed by SFI. Furthermore, the terminal device does not detect DCI indicating that one or more symbols of the at least one symbol are sending an uplink signal or receiving a downlink signal, then the at least one symbol is not an uplink symbol, and one or more symbols of the at least one symbol do not overlap with the downlink signal. Therefore, the terminal device can consider the at least one symbol to be a downlink symbol. In this case, the terminal device can measure CLI on the at least one symbol without causing a conflict of at least one symbol.

[0034] Condition 4: The first resource is configured by RRC for measuring CLI, one or more symbols of the at least one symbol are configured by RRC as flexible symbols, symbols other than the flexible symbols in the at least one symbol are configured by RRC as downlink symbols, and the terminal device detects that the SFI indicates that the flexible symbols in the at least one symbol are downlink symbols. Alternatively, the first resource is configured by RRC for measuring CLI, the RRC does not configure the type of the at least one symbol, and the terminal device detects that the SFI indicates that the at least one symbol is a downlink symbol. That is, the first resource is configured by RRC for measuring CLI, symbols other than the flexible symbols in the at least one symbol are configured by RRC as downlink symbols, and the terminal device detects that the SFI indicates that the flexible symbols in the at least one symbol are downlink symbols. Alternatively, the first resource is configured by RRC for measuring CLI, the RRC does not configure the type of the at least one symbol, and the terminal device detects that the SFI indicates that the flexible symbols in the at least one symbol are downlink symbols. Similar to condition 2 or condition 3, that is, if one or more symbols of the at least one symbol are flexible symbols and the symbol where the first resource is located does not explicitly specify the type of symbol, then the symbol where the first resource is located can be used as a downlink symbol or as an uplink symbol. However, if the SFI indicates that the at least one symbol is a downlink symbol, the terminal device knows that the at least one symbol is a downlink symbol. In this case, the terminal device can measure the CLI on the at least one symbol without causing a conflict for the at least one symbol.

[0035] Condition 5: The at least one symbol is configured as a downlink symbol by RRC, and the terminal device detects a DCI indication to measure CLI on the first resource. Under this condition, if the at least one symbol is configured as a downlink symbol by RRC, the terminal device clearly states that the at least one symbol is a downlink symbol. In this case, the terminal device can measure CLI on the at least one symbol without causing a conflict for at least one symbol.

[0036] Condition six, one or more symbols of the at least one symbol are configured as flexible symbols by RRC, and symbols other than the flexible symbols in the at least one symbol are configured as downlink symbols by RRC, and the terminal device detects that the DCI indicates measurement CLI in the first resource, and the at least one symbol has no SFI configuration. Or, RRC does not configure the type of the at least one symbol, and the terminal device detects that the DCI indicates measurement CLI in the first resource, and the at least one symbol has no SFI configuration. Under this condition, one or more symbols of the at least one symbol are flexible symbols, or the type of the at least one symbol is not configured. Flexible symbols or symbols of unconfigured type can be used to receive downlink signals, and can also be used to send uplink signals. If the terminal device is not configured with SFI, the direction of the at least one symbol will not be changed by SFI. Furthermore, the DCI instructs the terminal device to measure CLI, and the terminal device can consider the at least one symbol to be a downlink symbol. In this case, the terminal device can measure CLI on the at least one symbol without causing a conflict for the at least one symbol.

[0037] Condition seven, one or more symbols of the at least one symbol are configured as flexible symbols by RRC, and symbols other than the flexible symbols in the at least one symbol are configured as downlink symbols by RRC, the terminal device detects that the DCI indicates measurement CLI in the first resource, and the at least one symbol has an SFI configuration, the terminal device does not detect SFI, or the terminal device detects that the SFI indicates that the at least one symbol is a flexible symbol or a downlink symbol. Alternatively, RRC does not configure the type of the at least one symbol, the terminal device detects that the DCI indicates measurement CLI in the first resource, and the at least one symbol has an SFI configuration, the terminal device does not detect SFI, or the terminal device detects that the SFI indicates that the at least one symbol is a flexible symbol or a downlink symbol. Compared to condition six, if the at least one symbol has an SFI configuration, but the terminal device does not detect SFI, the DCI indicates that the terminal device measures CLI, and the terminal device may consider the at least one symbol to be a downlink symbol. Alternatively, the terminal device detects that the SFI indicates that the at least one symbol is a flexible symbol or a downlink symbol, and measures CLI according to the SFI indication and the DCI indication, and the terminal device may consider the at least one symbol to be a downlink symbol. The terminal device can measure CLI on the at least one symbol without causing a conflict for the at least one symbol.

[0038] In a third aspect, a communication device is provided, which has the function of implementing the behavior in the method example of the first aspect above. The beneficial effects can be found in the description of the first aspect and will not be repeated here. The function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions. In one possible design, the communication device includes: a processing module and / or a transceiver module. These modules can perform the corresponding functions in the method example of the first aspect above.

[0039] In one possible implementation, the transceiver module is used to receive resource configuration information from a network device, where the resource configuration information is used to indicate a first resource, and the first resource is used by the communication device to measure CLI; the processing module is used to cancel measuring CLI on at least one symbol when a first specific condition is met, wherein the at least one symbol includes the symbol where the first resource is located.

[0040] In a fourth aspect, a communication device is provided, which has the function of implementing the behavior in the method example of the second aspect above. The beneficial effects can be found in the description of the second aspect and will not be repeated here. The function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions. In one possible design, the communication device includes: a processing module and / or a transceiver module. These modules can perform the corresponding functions in the method example of the second aspect above.

[0041] In one possible implementation, the transceiver module is used to receive resource configuration information from a network device, where the resource configuration information is used to indicate a first resource, and the first resource is used by the terminal device to measure CLI; the processing module is used to measure CLI on at least one symbol when a second specific condition is met, and the at least one symbol includes the symbol where the first resource is located, or the at least one symbol includes the symbol where the first resource is located and N0 symbols before the symbol where the first resource is located.

[0042] In a fifth aspect, a communication device is provided. This communication device can be the terminal device in the above-mentioned method embodiment, or a chip provided in the terminal device. The communication device includes a communication interface and a processor, and optionally also includes a memory. The memory is used to store computer programs or instructions. The processor is coupled to the memory and the communication interface. When the processor executes the computer program or instructions, the communication device executes the method performed by the terminal device in the above-mentioned method embodiment.

[0043] In a sixth aspect, a computer program product is provided, comprising: a computer program code, which, when run, enables the method performed by the terminal device in the above aspects to be executed.

[0044] In a seventh aspect, the present application provides a chip system comprising a processor for implementing the functions of the terminal device in the methods of the above aspects. In one possible design, the chip system further comprises a memory for storing program instructions and / or data. The chip system may be composed of a chip alone or may include a chip and other discrete components.

[0045] In an eighth aspect, the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed, the method performed by the terminal device in the above aspects is implemented.

[0046] In a ninth aspect, the present application provides a communication system, which includes a terminal device and a network device such as the first aspect or any possible implementation of the first aspect; or, the communication system includes a terminal device and a network device such as the second aspect or any possible implementation of the second aspect; or, the communication system includes a terminal device of the first aspect or any possible implementation of the first aspect, a terminal device of the second aspect or any possible implementation of the second aspect, and a network device. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A schematic diagram of a network architecture applicable to an embodiment of the present application;

[0048] Figure 2 A schematic diagram of a flow chart of a method for measuring CLI provided in an embodiment of the present application;

[0049] Figure 3 A schematic diagram of resource conflicts provided in an embodiment of the present application;

[0050] Figure 4 Another flowchart of the CLI measurement method provided in an embodiment of the present application;

[0051] Figure 5 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0052] Figure 6 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0053] Figure 7 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0054] Figure 8 A schematic diagram of the structure of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0056] The technical solutions provided in the embodiments of the present application can be applied to the fifth generation (5G) mobile communication system, such as the new radio (NR) system, or to the long term evolution (LTE) system, or can also be applied to the next generation mobile communication system or other similar communication systems, without specific limitation.

[0057] Please refer to Figure 1 , is an exemplary architecture diagram of a communication system applicable to the embodiments of the present application, the communication system may include at least one network device and at least one terminal device. Figure 1 For example, the at least one network device is two network devices, and the two network devices are network device 1 and network device 2. Each network device can include at least one terminal device within its coverage area, for example, network device 1 covers terminal device 1, and network device 2 covers terminal device 2 and terminal device 3. It should be noted that Figure 1 This is just for illustration, and the embodiments of the present application do not limit the number of network devices and terminal devices included in the communication system. In some embodiments, the communication system may also include other network devices, such as wireless relay devices, wireless backhaul devices, etc.

[0058] The term "network device" refers to an access device that a terminal device uses to wirelessly access the mobile communication system, including, for example, access network (AN) devices, such as base stations (e.g., access points). A network device may also refer to a device that communicates with a terminal device over the air interface, such as other possible terminal devices. The network device may include an evolved base station (NodeB or eNB or e-NodeB, evolutionary Node B) in a long term evolution (LTE) system or an advanced long term evolution (LTE-A); or it may also include a next generation node B (gNB) in a 5G NR system; or it may also include an access node in a wireless fidelity (Wi-Fi) system, etc.; or the network device may be a relay station, a vehicle-mounted device, and a future evolved public land mobile network (PLMN) device, a device-to-device (D2D) network, a device in a machine-to-machine (M2M) network, a device in an Internet of Things (IoT) network, or a network device in other network PLMN networks, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device. For example, Figure 1 The network device 1 or the network device 2 in the example may be a base station, which corresponds to different devices in different systems, for example Figure 1The network device 1 or network device 2 in the embodiment of the present application may correspond to an eNB in ​​a fourth generation mobile communication technology (4G) system and to a gNB in ​​a 5G system. The network device in the embodiment of the present application may include a centralized unit (CU) and a distributed unit (DU), and multiple DUs may be centrally controlled by one CU. The CU and DU may be divided according to the protocol layer functions of the wireless network they possess, for example, the functions of the packet data convergence protocol (PDCP) layer and above protocol layers are set in the CU, and the functions of the protocol layers below the PDCP, such as the radio link control layer (RLC) layer and the medium access control (MAC) layer, are set in the DU. It should be noted that this division of the protocol layers is only an example, and division may also be performed at other protocol layers. The radio frequency device may be remote and not placed in the DU, or may be integrated in the DU, or may be partially remote and partially integrated in the DU. The embodiment of the present application does not impose any restrictions. In addition, in some embodiments, the control plane (CP) and user plane (UP) of the CU can be separated and implemented as different entities, namely the control plane CU entity (CU-CP entity) and the user plane CU entity (CU-UP entity). In this network architecture, the signaling generated by the CU can be sent to the UE through the DU, or the signaling generated by the UE can be sent to the CU through the DU. The DU can directly encapsulate the signaling through the protocol layer and pass it to the UE or CU without parsing it. In this network architecture, the CU is divided into a network device on the RAN side. In addition, the CU can also be divided into a network device on the CN side. This application does not limit this.

[0059] A terminal device, which can be referred to as a terminal, also known as user equipment (UE), is a device with wireless transceiver capabilities that can send signals to network devices or receive signals from network devices. The terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality terminal device, an augmented reality terminal device, a wireless terminal device in industrial control, a wireless terminal device in unmanned driving, a wireless terminal device in telemedicine, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home. The terminal device can also be fixed or mobile. The embodiments of the present application are not limited to this.

[0060] For example, the terminal device in the embodiment of the present application can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a smart speaker in an IoT network, etc. As an example and not a limitation, in the embodiment of the present application, the terminal device can also be a wearable device. Wearable devices can also be called wearable smart devices or smart wearable devices, etc., which are a general term for wearable devices that are intelligently designed and developed based on wearable technology for daily wear, such as glasses, gloves, watches, clothing and shoes. The various terminal devices introduced above, if located on a vehicle (for example, placed in a vehicle or installed in a vehicle), can be considered as vehicle-mounted terminal devices, and vehicle-mounted terminal devices are also called on-board units (OBUs).

[0061] In addition, in the embodiments of the present application, a terminal device may refer to a device for implementing the functions of a terminal, or may refer to a device that supports the terminal device in implementing the functions, such as a chip system, which may be installed in the terminal device. For example, the terminal device may also be a vehicle detector or a sensor at a gas station.

[0062] The above describes the network architecture applicable to the embodiments of the present application. The following describes the technical features related to the embodiments of the present application.

[0063] As services become more diverse, the same network equipment may have different service requirements at different times. Figure 1 For example, network device 1 has more business data in the morning time period and less business data in the afternoon time period. Compared with the afternoon time period, network device 1 can configure more resources for terminal device 1 in the morning time period. Different network devices may have different business needs in the same or different time periods. Figure 1 For example, in the same time period, network device 1 sends data to terminal device 1, and network device 2 receives data from terminal device 2 and / or terminal device 3. In order to improve the utilization of the spectrum, network device 1 and network device 2 can use the same spectrum resources. For example, for a certain resource, network device 1 can be configured as a downlink resource, and network device 2 can be configured as an uplink resource. It should be noted that uplink and downlink are relative. In the embodiment of the present application, the network device to the terminal device is referred to as downlink, and the terminal device to the network device is referred to as downlink. In addition, resources can also be understood as time-frequency resources, which can include time domain resources and frequency resources.

[0064] However, different network devices sharing the same resources may cause CLI. For example, taking time slot m as an example, network device 1 can configure time slot m as a downlink time slot, and network device 2 can configure time slot m as an uplink time slot. That is, network device 1 sends a downlink signal to terminal device 1 in time slot m, and terminal device 2 and terminal device 3 send an uplink signal to network device 2 in time slot m. However, for network device 2, in addition to receiving the uplink signal from terminal device 2 and terminal device 3, it may also receive the downlink signal from network device 1 in time slot m. That is, for network device 2, the downlink signal sent by network device 1 will cause interference to the uplink signal of terminal device 2 and terminal device 2. Since network device 1 causes interference to network device 2, this interference can also be called interference between network devices and network devices (referred to as interference between network devices in this article). Similarly, for terminal device 1, in addition to receiving the downlink signal from network device 1 in time slot m, it may also receive the uplink signal from terminal device 2 and / or terminal device 3. That is, for terminal device 1, the uplink signal sent by terminal device 2 and / or terminal device 3 may cause interference with the downlink signal of network device 1. Because terminal device 2 and / or terminal device 3 cause interference to terminal device 1, this interference can also be referred to as terminal device-terminal device interference (hereinafter referred to as inter-terminal device interference). In this application, interference between different network devices and interference between different terminal devices are both referred to as CLI.

[0065] The embodiments of this application primarily use CLI measurement between terminal devices as an example. Therefore, the following description of interference measurement between network devices will not be detailed. To avoid or reduce CLI, the network device configures resources for CLI measurement for the terminal device. The terminal device then measures CLI on the CLI measurement resources configured by the network device. After measuring CLI, the terminal device can send the obtained CLI measurement results to the network device. The network device coordinates scheduling based on the CLI measurement results to avoid or reduce the impact of CLI on network performance, such as throughput.

[0066] Based on the different CLI metrics, CLI measurement can be divided into the following two types, which are introduced below.

[0067] 1) Channel Sounding Reference Signal (SRS)-Reference Signal Receive Power (RSRP) measurement

[0068] In this type of measurement CLI, the reference signal is an SRS resource. The terminal device measures the SRS resources sent by one or more interfering terminal devices and obtains the RSRP results of each SRS resource, that is, the terminal device can measure the interference strength of each interference source separately. Figure 1 For example, network device 2 may configure one or more SRS resources for terminal device 2 and terminal device 3 respectively. Terminal device 2 and terminal device 3 send SRS to network device 2 on the configured SRS resources. Network device 1 may configure an SRS resource for terminal device 1 for receiving SRS sent from terminal device 2 and terminal device 3. That is, on this SRS resource, terminal device 1 does not receive the downlink signal from network device 1, but receives the SRS sent by terminal device 2 and terminal device 3. This SRS can be used for terminal device 1 under network device 1 to measure CLI between different terminal devices. It should be noted that network device 2 may configure different SRS resources for terminal device 2 and terminal device 3, so that each terminal device can know the CLI of each terminal device through measurement. For example, network device 2 configures SRS resource 1 for terminal device 2 and SRS resource 2 for terminal device 3. Terminal device 2 sends SRS on SRS resource 1, and terminal device 3 sends SRS on SRS resource 2. Terminal device 1 measures RSRP for the SRS received on SRS resource 1, and obtains the RSRP measurement result to determine the CLI between terminal device 2 and terminal device 1. Terminal device 1 measures RSRP for the SRS received on SRS resource 2, and obtains the RSRP measurement result to determine the CLI between terminal device 3 and terminal device 1.

[0069] 2) CLI-received signal strength indicator (RSSI) measurement, that is, measuring the RSSI of CLI.

[0070] In this type of measurement CLI, the terminal device measures the total received power value on the configured CLI-RSSI measurement resource. The network device determines the overall interference situation of the terminal device based on the total received power value measured by the terminal device. Figure 1 For example, network device 1 may configure a resource for terminal device 1 to measure the RSSI of the CLI caused by terminal device 2 and terminal device 3. Terminal device 1 can measure the RSSI of the CLI on this resource. Because network device 2 does not specify the signals of terminal device 2 and terminal device 3 on this resource, terminal device 1 cannot obtain the RSSI of the CLI between terminal devices caused by different terminal devices under network device 2, that is, it cannot distinguish the RSSI of the CLI between terminal device 2 and terminal device 1, and the RSSI of the CLI between terminal device 3 and terminal device 1.

[0071] Both SRS-RSRP measurement and CLI-RSSI measurement involve the network device configuring resources for the terminal device to measure CLI. For ease of description, the resources used to measure CLI are collectively referred to as measurement CLI resources. Figure 1 , the network device 1 can configure the measurement CLI resources for the terminal device 1 through high-level signaling, such as radio resource control (RRC) signaling or downlink control information (DCI). Since the distance from the terminal device to the network device is usually longer than the distance between the terminal devices, the time it takes for the signal sent by a terminal device to reach another terminal device is shorter than the time it takes to reach the network device. Therefore, the protocol stipulates that the start time of the terminal device measuring CLI needs to be at least N0 symbols ahead of the downlink reference time. The value of N0 is related to the frequency range (FR) and subcarrier spacing (SCS) where the CLI resource is measured, as shown in Table 1 below.

[0072] Table 1

[0073] SCS(△f) FR1 (Frequency Range 1) FR2 (Frequency Range 2) 15 / 30kHz 1 -(This frequency band does not include this SCS) 60kHz 2 1 120kHz -(This frequency band does not include this SCS) 2

[0074] The network device can configure measurement CLI resources for the terminal device through high-layer signaling or DCI, and can also configure the time slot format for a group of terminal devices. For example, the network device can configure the time slot format for a group of terminal devices through high-layer signaling, such as TDD configuration (configure) and / or slot format indicator (SFI). TDD configuration and time slot format can configure the format of the symbols within the time slot. For example, a symbol can be divided into three types: uplink, downlink, and flexible. In other words, a symbol can be an uplink symbol, a downlink symbol, or a flexible symbol.

[0075] However, in possible scenarios, some or all of the resources in the CLI measurement resources configured by the network device for the terminal device through high-layer signaling are also used to indicate other purposes, which may cause conflicts in the resources used to measure CLI. Assume that the network device configures the CLI measurement resources for the terminal device as a group of symbols within a time slot through RRC. If the network device also indicates through DCI that the group of symbols is used by the terminal device to send uplink signals. That is, this group of symbols is used for both measuring CLI and sending uplink signals, then this group of symbols is considered to be in conflict. Alternatively, the network device indicates through SFI that this group of symbols in the time slot are uplink symbols, and this group of symbols is also considered to be in conflict. In possible scenarios, the resource usage indicated by the network device through DCI and the time slot format indicated by SFI may also conflict. For example, if DCI indicates that the terminal device measures CLI on a group of symbols in a time slot, this group of symbols in the time slot can be considered to be downlink symbols. When SFI indicates that this group of symbols in the time slot are uplink symbols, this group of symbols is also considered to be in conflict. In the case that a resource for measuring CLI configured by the network device for the terminal device conflicts, the terminal device still measures CLI on the resource for measuring CLI, which may affect signal reception or signal transmission by the terminal device.

[0076] In light of this, some embodiments of the present application provide a CLI measurement method. In this method, a terminal device measures or cancels CLI measurement only when specific conditions are met. This method specifies the triggering conditions for a terminal device to measure or cancel CLI measurement. Because the terminal device cancels CLI measurement in the event of a CLI resource conflict, this method can minimize the impact on the terminal device's signal transmission or reception.

[0077] The technical solutions provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0078] See Figure 2 , shows a process of measuring CLI method provided by the embodiment of the present application. In the following introduction process, the method is applied to Figure 1Take the network architecture shown as an example. In addition, the method can be performed by two communication devices, such as a first communication device and a second communication device, wherein the first communication device can be a network device or a communication device that can support the network device to implement the functions required by the method, or the first communication device can be a terminal device or a communication device that can support the terminal device to implement the functions required by the method, of course, it can also be other communication devices, such as a chip system. The same is true for the second communication device. The second communication device can be a network device or a communication device that can support the network device to implement the functions required by the method, or the second communication device can be a terminal device or a communication device that can support the terminal device to implement the functions required by the method, of course, it can also be other communication devices, such as a chip system. There is no restriction on the implementation methods of the first communication device and the second communication device, for example, the first communication device can be a network device, the second communication device is a terminal device, or the first communication device and the second communication device are both network devices, or the first communication device and the second communication device are both terminal devices, or the first communication device is a network device, and the second communication device is a communication device that can support the terminal device to implement the functions required by the method, and so on. Wherein, the network device is, for example, a base station.

[0079] For the sake of convenience, the following takes the method executed by the network device and the terminal device as an example, that is, the first communication device is the network device and the second communication device is the terminal device as an example. Figure 1 The network architecture shown in the figure, the network devices described below can be Figure 1 The network devices in the network architecture shown in the figure, the terminal devices below can be Figure 1 Any terminal device in .

[0080] In the following, the term "uplink signal" may be a signal sent by a terminal device to a network device, or a signal sent by a terminal device to another terminal device. The uplink signal may include PUSCH, PUCCH, SRS, or PRACH. The downlink signal received by the terminal device is not a signal sent by another terminal device to the terminal device. For example, the downlink signal may be a signal sent by a network device to the terminal device, and the downlink signal may be PDSCH, PDCCH, or CSI-RS.

[0081] Valid resources refer to resources that can be used by a communication device to send or receive signals. For example, for a terminal device, a valid PRACH opportunity refers to resources corresponding to the PRACH opportunity that can be used by the terminal device to send PRACH.

[0082] If two resources partially overlap or fully overlap, it can be considered that the two resources have an intersection in the time domain and / or frequency domain. For example, if two resources partially overlap or fully overlap in the time domain, it can be considered that the two resources have an intersection in the time domain, and if two resources partially overlap or fully overlap in the frequency domain, it can be considered that the two resources have an intersection in the frequency domain. If the uses of the two resources are different, it can be considered that the overlapping resources in the two resources are in conflict. In other words, the conflict of two resources can be considered that the two resources overlap or have an intersection, and the uses of the two resources are different. Taking time domain resources as an example, there are resource A and resource B. The symbol where resource A is located is used for downlink transmission, and the symbol where resource B is located is used for uplink transmission. Some or all of the symbols in the symbol where resource A is located overlap with some or all of the symbols in the symbol where resource B is located, then resource A and resource B overlap.

[0083] The symbol mentioned in the embodiment of the present application is indicated by SFI as a flexible type (symbol) / uplink type (symbol) / downlink type (symbol), which means that the network device has configured SFI for the terminal device, and the terminal device has successfully detected that the SFI indication symbol is a flexible type (symbol) / uplink type (symbol) / downlink type (symbol).

[0084] In the embodiments of the present application, canceling CLI measurement can be understood as the terminal device not wanting to measure CLI, or it can be considered that the terminal device does not want to receive the signal used to measure CLI. In other embodiments, canceling CLI measurement can be understood as the terminal device not receiving the signal used to measure CLI. The following uses the SRS as an example of the signal used to measure CLI.

[0085] Failure to detect SFI means that SFI signaling is configured, but for the receiving end, failure to detect SFI may be caused by the sending end not sending SFI, or the sending end sending SFI but the receiving end failing to decode or decipher the SFI.

[0086] In the embodiments of the present application, uplink and downlink are relative terms. For example, for a network device and a terminal device, the link from the network device to the terminal device can be referred to as downlink, and the link from the terminal device to the network device can be referred to as uplink (this is used as an example in this article). For example, for a first terminal device and a second terminal device, the link from the first terminal device to the second terminal device can be referred to as downlink, and the link from the second terminal device to the first terminal device can be referred to as uplink.

[0087] S201. A network device sends resource configuration information to a terminal device. Correspondingly, the terminal device receives the resource configuration information. The resource configuration information is used to indicate a first resource. The first resource can be used by the terminal device to measure a CLI.

[0088] In order to reduce or avoid CLI, the network device configures resources for measuring CLI for the terminal device, so that the terminal device can measure CLI and coordinate the scheduling of resources used by the terminal device according to the result of the network device measuring CLI. For example, the network device indicates the first resource (also referred to as the CLI measurement resource in the text) used for the terminal device to measure CLI through resource configuration information. After receiving the resource configuration information, the terminal device measures CLI on the first resource. Since the signal received by the terminal device for measuring CLI usually arrives before the starting symbol of the first resource, the terminal device usually starts measuring CLI on N0 symbols before the starting symbol of the first resource. For the convenience of description, the "time domain resource for measuring CLI" will be referred to as at least one symbol below. The at least one symbol may include the symbol where the first resource is located, and may also include the symbol where the first resource is located and N0 symbols before the symbol where the first resource is located.

[0089] S202: The terminal device determines that a first specific condition is met and cancels measuring CLI.

[0090] Because the network device can configure the type of symbol through signaling. For example, the network device can flexibly indicate through DCI that certain resources are used to send uplink signals or receive downlink symbols. For another example, the network device can indicate the type of symbol through SFI. Therefore, when the network device configures the first resource for the terminal device to measure CLI, the network device may also change the transmission direction or type of one or more symbols where the first resource is located through signaling. For example, the network device configures the first resource for measuring CLI, and the network device indicates through DCI that one or more symbols where the first resource is located are used to send uplink signals or receive downlink signals. In this case, the first resource conflicts. If the terminal device measures CLI on the first resource, it will obviously affect the terminal device from sending uplink signals or receiving downlink signals. The conflict of the first resource is not expected by the terminal device. It can also be considered that the terminal device does not expect to send uplink signals or receive downlink signals on the time domain resources used to measure CLI. For this reason, the terminal device cancels the measurement of CLI when it determines that the first resource or the time domain resource used to measure CLI conflicts.

[0091] First, several situations in which time domain resources for measuring CLI conflict occur are introduced. It should be understood that time domain resources for measuring CLI conflict refers to one or more symbols in at least one symbol being used to transmit uplink signals or receive downlink signals.

[0092] See Figure 3 , showing several situations where conflicts occur in the time domain resources used to measure CLI.

[0093] like Figure 3As shown, resource 1 is the symbol where the valid PRACH opportunity is located and Ngap symbols before the valid PRACH opportunity. Resource 2 is the symbol where the first resource is located and N0 symbols before the symbol where the first resource is located. Resource 3 is the symbol where the resource configured by the network device for sending uplink signals is located. Resource 4 is configured as an uplink symbol by RRC signaling or indicated as an uplink symbol by SFI. Resource 5 is a resource configured by the network for receiving downlink signals. The symbols in resource 1 cannot be downlink symbols. When resource 1 partially or completely overlaps with resource 2, and when CLI is measured in resource 2, the overlapping symbols can be considered as downlink symbols, and there is obviously a conflict. When resource 2 partially or completely overlaps with resource 3, it can be considered that the overlapping symbols are used for both measuring CLI and sending uplink signals, and there is obviously a conflict. When resource 2 partially or completely overlaps with resource 4, it can be considered that the overlapping symbols are used for both measuring CLI and uplink symbols, and there is obviously a conflict. When the symbols of resource 2 and resource 5 partially or completely overlap, and the subcarrier of the first resource and the subcarrier of resource 5 partially or completely overlap, it can be considered that the overlapping time-frequency resources are used to measure CLI and to receive other downlink signals, and there is obviously a conflict.

[0094] For example, when the terminal device does not support cli-SRS-RSRP-FDM_DL, that is, when the terminal device does not support receiving signals and other signals for measuring CLI in FDM mode, the terminal device does not expect to receive PDCCH, PDSCH or CSI-RS signals in the symbol for SRS-RSRP measurement and its first N0 symbols. For another example, when the terminal device does not support cli-RSSI-FDM-DL, the terminal device does not expect to receive PDCCH, PDSCH or CSI-RS signals in the symbol for CLI-RSSI measurement and its first N0 symbols.

[0095] For another example, when the terminal device supports cli-SRS-RSRP-FDM_DL, that is, the terminal device supports frequency division multiplexing of measuring CLI resources and other signals, the terminal device does not expect that when the symbol for SRS-RSRP measurement and the first N0 symbols thereof receive PDCCH, or PDSCH or CSI-RS signals, the frequency domain resources for SRS-RSRP measurement partially or completely overlap with the frequency domain resources for receiving downlink signals. For another example, when the terminal device supports cli-RSSI-FDM-DL, the terminal device does not expect that when the symbol for CLI-RSSI measurement and the first N0 symbols thereof receive PDCCH, or PDSCH or CSI-RS signals, the frequency domain resources for CLI-RSSI measurement partially or completely overlap with the frequency domain resources for receiving downlink signals.

[0096] Therefore, if a situation unexpected by the terminal device occurs, the terminal device may cancel measuring CLI and give priority to sending uplink signals or receiving downlink signals. For ease of description, the condition satisfying the terminal device canceling measuring CLI is referred to herein as the first specific condition.

[0097] The first specific condition may include one or more of the following conditions, which are described below. It should be noted that, in the following, at least one symbol may include the symbol where the first resource is located, or may include the symbol where the first resource is located and N0 symbols before the symbol where the first resource is located.

[0098] Condition one: at least one symbol partially or completely overlaps with the symbol where the second resource is located, and the symbol where the second resource is located is an uplink symbol.

[0099] At least one symbol used for CLI measurement should be a downlink symbol, a flexible symbol, or used for downlink transmission. If at least one symbol partially or completely overlaps with an uplink symbol, it can be assumed that part or all of the at least one symbol is also used for uplink transmission, indicating that there is a conflict in the at least one symbol. In this case, the terminal device can cancel CLI measurement on the at least one symbol, that is, the at least one symbol is preferentially used for uplink transmission, thereby avoiding the impact of CLI measurement on uplink signal transmission.

[0100] For example, the symbol where the second resource is located is configured as an uplink symbol by RRC signaling. The terminal device determines that the symbol where the second resource is located is an uplink symbol based on the RRC signaling sent by the network device, and when at least one symbol partially or completely overlaps with the symbol where the second resource is located, the terminal device cancels the measurement of CLI on the at least one symbol.

[0101] For another example, a first resource is configured by RRC for CLI measurement, and a symbol containing a second resource is indicated as an uplink symbol by SFI. The terminal device determines, based on the SFI sent by the network device, that the symbol containing the second resource is an uplink symbol. The terminal device determines, based on RRC and SFI, that at least one symbol partially or completely overlaps with the symbol containing the second resource. In this case, the terminal device cancels CLI measurement on the at least one symbol.

[0102] For another example, when the first resource is indicated by DCI as being used for CLI measurement, the symbol where the second resource is located is indicated by SFI as an uplink symbol, and at least one symbol partially or completely overlaps with the symbol where the second resource is located, the terminal device does not expect the DCI to indicate that the first resource is used for CLI measurement and the SFI to indicate that the symbol where the second resource is located is an uplink symbol. Therefore, when at least one symbol partially or completely overlaps with the symbol where the second resource is located, the terminal device cancels CLI measurement.

[0103] Condition 2: At least one symbol partially or fully overlaps with the third resource, and the third resource includes one or more symbols where valid PRACH opportunities are located. Alternatively, at least one symbol partially or fully overlaps with the third resource, and the third resource includes one or more symbols where valid PRACH opportunities are located, and N before the one or more valid PRACH opportunities. gap At least one symbol among the N symbols, the N gap is an integer greater than or equal to 0. It should be understood that the symbol where the PRACH opportunity is located cannot be a downlink symbol, and the N before one or more valid PRACH opportunities gap At least one of the symbols cannot be a downlink symbol. When the terminal device measures the CLI on at least one symbol, the terminal device may consider the at least one symbol to be a downlink symbol. When the at least one symbol partially or completely overlaps with the third resource, a conflict clearly exists. The terminal device cancels CLI measurement on the at least one symbol to avoid affecting signal transmission on valid PRACH opportunities.

[0104] Optional, N gap Related to the SCS of the random access preamble. For example, if the SCS of the preamble is 1.25kHz or 5kHz, then N gap For example, if the SCS of the preamble is 15kHz, 30kHz, 60kHz or 120kHz, then N gap It should be understood that the value of the SCS of the preamble and N gap The relationship between the values ​​of is only an example.

[0105] Condition three, one or more symbols in at least one symbol are indicated by DCI to be used for sending uplink signals or receiving downlink signals. The network device can flexibly indicate certain resources for sending uplink signals or receiving downlink symbols through DCI. Even if the network device configures resources for measuring CLI for the terminal device, it is inevitable that the resources are multiplexed. For example, the network device indicates through DCI that one or more symbols in at least one symbol are multiplexed to send uplink signals or receive downlink signals. In this case, there is a conflict between one or more symbols in at least one symbol, and the terminal device also cancels the measurement of CLI on at least one symbol, that is, at least one symbol is preferentially used to send uplink signals or receive downlink signals.

[0106] For example, the first resource is configured by RRC for measuring CLI, one or more symbols of the at least one symbol are indicated by DCI for sending an uplink signal, and the terminal device cancels measuring CLI.

[0107] For another example, the at least one symbol is indicated by the DCI for measuring CLI, and one or more symbols of the at least one symbol are indicated by the DCI for sending uplink signals. The terminal device does not want this situation to occur, and when this situation occurs, the terminal device cancels the CLI measurement.

[0108] For another example, the at least one symbol partially or completely overlaps with the symbol where the fourth resource is located, and the subcarrier where the fourth resource is located partially or completely overlaps with at least one subcarrier, wherein the at least one subcarrier includes the subcarrier where the first resource is located. For example, the first resource is configured by RRC for measuring CLI, and the fourth resource is indicated by DCI for receiving downlink signals, and the terminal device cancels the measurement of CLI. For another example, the at least one symbol is indicated by DCI for measuring CLI, and the fourth resource is indicated by DCI for receiving downlink signals. The terminal device does not want this situation to occur, and when this situation occurs, the terminal device cancels the measurement of CLI.

[0109] In one possible implementation, the first resource is configured by RRC for measuring CLI, and the terminal device does not want one or more of the at least one symbol to be configured by RRC to send an uplink signal or receive a downlink signal. Therefore, the at least one symbol is configured by RRC for measuring CLI, one or more of the at least one symbol is configured by RRC to send an uplink signal or receive a downlink signal, and the terminal device cancels measuring CLI.

[0110] Condition four: one or more of the at least one symbol is configured by RRC as a flexible symbol or RRC does not configure the type of the at least one symbol, and the at least one symbol has an SFI configuration, the terminal device does not detect the SFI, and the terminal device does not detect the DCI indication in the first resource measurement CLI. Alternatively, one or more of the at least one symbol is configured by RRC as a flexible symbol or RRC does not configure the type of the at least one symbol, the terminal device detects that the SFI indicates that one or more of the at least one symbol is a flexible symbol, and the terminal device does not detect the DCI indication in the first resource measurement CLI.

[0111] The network device configures a first resource for measuring CLI for the terminal device, but the network device may not configure whether the symbols in the first resource are uplink symbols or downlink symbols. For example, the network device does not configure the type of symbols in the first resource, or the network device configures the symbols in the first resource as flexible symbols. In this case, when the at least one symbol has an SFI configuration and the terminal device does not detect the SFI, the terminal device may consider that the direction of one or more symbols in the at least one symbol is not configured. Alternatively, when the terminal device detects that the SFI indicates that one or more symbols in the at least one symbol are flexible symbols, the terminal device considers that one or more symbols in the at least one symbol are reserved symbols, and the terminal device does not use the reserved symbol. In an optional manner, for reserved symbols, since the terminal device cannot determine the purpose of the reserved symbols, the network device can trigger the terminal device through DCI whether to measure CLI on the first resource. If there is no DCI instructing the terminal device to measure CLI on the first resource, the terminal device does not measure CLI on at least one symbol. If the terminal receives a DCI instructing the terminal device to measure CLI on the first resource, the terminal device measures CLI on at least one symbol.

[0112] Condition 5: The terminal device is configured with multiple serving cells, and the multiple serving cells include a reference cell and other cells, where the other cells are serving cells other than the reference cell. The transmission direction of at least one symbol in the reference cell is different from the transmission direction of at least one symbol in the other cells.

[0113] As an example, condition five includes: the first resource is configured by RRC in the reference cell for measuring CLI, and one or more symbols of the at least one symbol are indicated by DCI in other cells for sending uplink signals or receiving downlink symbols. Assuming that the first resource is used to measure CLI in the reference cell, the terminal device does not expect the first resource to be used to send uplink signals or receive downlink signals, such as PDSCH, PDCCH or CSI-RS, in other cells. Since the DCI indicates that some or all of the symbols where the first resource is located are used to send uplink signals or receive downlink signals in other cells, that is, one or more symbols in the symbols where the first resource is located are used for both measuring CLI and sending uplink signals or receiving downlink signals, in order to avoid conflicts with the first resource, the terminal device cancels measuring CLI.

[0114] As another example, condition five includes: the first resource is configured by RRC in another cell for CLI measurement, and one or more of the at least one symbol is configured by RRC as an uplink symbol in the reference cell. If the first resource is used for CLI measurement in another cell but is configured as an uplink symbol in the reference cell, a conflict may also occur with the first resource. To avoid a conflict with the first resource, the terminal device cancels CLI measurement.

[0115] As another example, condition five includes: the first resource is configured by RRC in other cells for measuring CLI, and one or more of the at least one symbol is configured by RRC in the reference cell for sending uplink signals or receiving downlink symbols. Similarly, if the first resource is used to measure CLI in other cells, but is configured in the reference cell for sending uplink signals or receiving downlink symbols, then the first resource may also conflict. In this case, the terminal device does not require to measure CLI on the at least one symbol. To avoid a conflict with the first resource, the terminal device cancels measuring CLI.

[0116] It should be noted that the above three conditions five can be respectively considered as a first specific condition. The terminal device determines that as long as any one of the above three conditions five is met, the terminal device does not measure CLI on the first resource, or the terminal device does not measure CLI on the first resource and the N0 symbols before the symbol where the first resource is located.

[0117] In some embodiments, the frequency bands corresponding to the reference cell and the other cells may be the same or different. The embodiments of the present application are not limited to this. If the frequency bands corresponding to the reference cell and the other cells are the same, one symbol is allowed to receive the signal for measuring CLI and the downlink signal in FDM mode, and the frequency domain resources for measuring CLI may conflict. For example, the subcarrier where the first resource is located and the subcarrier where the fourth resource is located partially or completely overlap, and the symbol where the fourth resource is located partially or completely overlaps with at least one symbol, and it can be considered that there is a conflict between the first resource and the fourth resource. In this case, the terminal device also cancels the measurement of CLI. That is, the first specific condition may also include: if the frequency bands corresponding to the reference cell and the other cells are the same, the subcarrier where the first resource is located and the subcarrier where the fourth resource is located partially or completely overlap, and the symbol where the fourth resource is located partially or completely overlaps with at least one symbol.

[0118] Condition six: The first resource is configured by RRC in the serving cell for measuring CLI, and one or more symbols of the at least one symbol have different transmission directions in the reference cell and other cells. For example, one or more symbols of the at least one symbol are configured by RRC as downlink symbols in the reference cell, and one or more symbols of the at least one symbol are configured by RRC as uplink symbols in other cells. For another example, one or more symbols of the at least one symbol are configured by RRC as uplink symbols in the reference cell, and one or more symbols of the at least one symbol are configured by RRC as downlink symbols in other cells. In this case, the terminal device considers that one or more symbols of the at least one symbol are flexible, and when RRC configures the terminal device to measure CLI on the symbol where the first resource is located, the terminal device does not require measurement of CLI on the at least one symbol. It should be understood that the first resource is configured for measuring CLI in the serving cell, regardless of whether the symbol where the first resource is located is configured as an uplink symbol or a downlink symbol in the reference cell and other cells, as long as the symbol where the first resource is located has different transmission directions in the reference cell and other cells, the terminal device considers that the symbol where the first resource is located is flexible, and the terminal device does not require measurement of CLI. In this case, the terminal device does not measure the CLI on the first resource, or does not measure the CLI on the first resource and N0 symbols before the symbol where the first resource is located.

[0119] Under condition six, the frequency bands corresponding to the reference cell and other cells may be different.

[0120] In one possible implementation, before determining whether to measure CLI, the terminal device may determine whether the terminal device meets certain characteristics, in addition to determining whether the first specific condition is met. For example, if the terminal device meets one or more of the following four characteristics, the terminal device may cancel CLI measurement.

[0121] Exemplarily, the terminal device needs to meet the following requirements: the terminal device supports half-duplex mode, and the terminal device is configured with multiple serving cells; the terminal device does not support simultaneous transmission and reception in any serving cell; the terminal device has half-duplex capability of unpaired spectrum CA; the terminal device has no SFI configuration in any serving cell. For example, the terminal device supports half-duplex mode, that is, the terminal device cannot send and receive at the same time. In these cases, when the first resource used to measure CLI is used, for example, to send an uplink signal or receive a downlink signal, a resource conflict will occur, and the terminal device needs to determine whether to measure CLI to avoid affecting the sending of uplink signals or the receiving of downlink signals as much as possible.

[0122] It should be noted that any one of conditions 1 through 6 is considered a first specific condition, and any combination of multiple conditions from conditions 1 through 6 is also considered a first specific condition. Furthermore, any one of conditions 1 through 6, combined with the characteristics that the terminal device must meet, can also be considered a first specific condition.

[0123] The embodiments of the present application specify trigger conditions for a terminal device to cancel CLI measurement, such as any of the aforementioned first specific conditions. For example, if the first resource conflicts with other resources, the terminal device cancels CLI measurement. For another example, if the SFI indicates a conflict with the first resource, the terminal device also cancels CLI measurement. Since the terminal device cancels CLI measurement when the first resource conflicts, it can avoid affecting the terminal device's signal transmission or reception on the first resource.

[0124] Considering that a network device can indicate the resources used for CLI measurement via DCI, but the specific type of the resources used for CLI measurement may also be indicated by the SFI, in this case, the resources used for CLI measurement may conflict. The following is another method for measuring CLI that further clarifies the specific conditions for CLI measurement by a terminal device to avoid conflicts with the symbols of the first resource, thereby minimizing communication anomalies of the terminal device.

[0125] See Figure 4 , shows another process of measuring CLI provided by the embodiment of the present application. Figure 1 The network architecture shown is taken as an example. Figure 4 The process shown Figure 2 The difference is that it focuses on clarifying the specific conditions for terminal equipment to measure CLI, which is different from Figure 2 For details on the repetitions, please refer to the above Figure 2 The description of the embodiments will not be repeated here.

[0126] S401. A network device sends resource configuration information to a terminal device. Correspondingly, the terminal device receives the resource configuration information. The resource configuration information is used to indicate a first resource. The first resource can be used by the terminal device to measure a CLI.

[0127] The specific implementation of S401 is the same as that of S201. For details, please refer to the introduction of the relevant content of S201 above, which will not be repeated here.

[0128] S402. The terminal device determines that the second specific condition is met, and measures the CLI on the symbol where the first resource is located and N0 symbols before the symbol where the first resource is located.

[0129] The direction of the symbol can be configured by RRC as uplink or downlink or flexible. The flexible symbol configured by RRC can be further indicated as uplink or downlink. For example, the symbol configured by RRC as flexible can also be explicitly indicated by the semi-static measurement configuration to be used for sending uplink signals or for receiving downlink signals. Among them, the semi-static measurement configuration may include, for example, RRC-configured measurement CLI or CSI-RS measurement or SRS measurement. For example, a symbol is configured by RRC as a flexible symbol, and in addition, RRC configures the symbol to measure CLI, then the terminal device may consider the symbol to be a downlink symbol, that is, the transmission direction of the symbol is downlink. The symbol configured by RRC as flexible can also be indicated by SFI as an uplink symbol or a downlink symbol. Or the symbol configured by RRC as flexible can also be indicated by DCI for sending signals or receiving signals. For example, a flexible symbol is indicated by DCI for measuring CLI, or for receiving downlink signals, or for sending uplink signals. If the symbol configured by RRC as flexible is indicated by DCI for sending signals, then the terminal device may consider the symbol to be an uplink symbol. Similarly, if a symbol configured as flexible by RRC is indicated by DCI for signal reception, the terminal device may consider the symbol to be a downlink symbol. This may result in a symbol conflict. For example, the resource usage indicated by the network device via DCI may conflict with the timeslot format indicated by the SFI. For example, if the DCI instructs the terminal device to measure the CLI on a set of symbols in a timeslot, but the SFI indicates that the set of symbols in the same timeslot is uplink, this symbol conflict also exists. Once a symbol conflict occurs, basic criteria for overlapping between different configurations must be determined. For example, basic criteria may include: uplink and downlink symbols configured by RRC cannot be modified; or flexible symbols configured by RRC can be configured for semi-static measurement, indicated by the SFI, and DCI indicates a change in the transmitted or received signal; or the uplink and downlink configurations in the semi-static measurement configuration can be indicated by the SFI, and DCI indicates a change in the transmitted or received signal. If the symbol direction changes, the semi-static measurement-related behavior will be canceled; the DCI-indicated transmit or receive direction cannot conflict with the uplink and downlink directions indicated by the SFI, but the flexible portion of the SFI configuration can be modified.

[0130] The terminal device can determine the behavior related to measuring CLI under these basic criteria. That is, further clarify the specific conditions for the terminal device to measure CLI to avoid conflicts with the first resource and try to avoid communication abnormalities of the terminal device. For example, the embodiment of the present application stipulates the behavior of the terminal device to measure CLI under the DCI indication and SFI indication. That is, the terminal device measures CLI only when one or certain specific conditions are met. For the convenience of description, the condition for the terminal device to measure CLI is referred to as the second specific condition in this document. The second specific condition may include one or more of the following conditions, and these specific conditions are introduced below.

[0131] Condition 1: The first resource is configured by RRC for CLI measurement, and the at least one symbol is configured by RRC as a downlink symbol. If the RRC configures the first resource for CLI measurement, the symbol on which the first resource resides must be a downlink symbol. When the RRC configures the at least one symbol as a downlink symbol, even if the terminal device can measure CLI on the at least one symbol, a conflict for at least one symbol will not occur.

[0132] Condition two: The first resource is configured by RRC for measuring CLI, one or more symbols of the at least one symbol are configured by RRC as flexible symbols, the symbols of the at least one symbol other than those configured as flexible symbols are downlink symbols, and the terminal device is not configured with SFI, and the terminal does not detect DCI indicating that one or more symbols of the at least one symbol are sending uplink signals or receiving downlink signals. If one or more symbols of the at least one symbol are flexible symbols, the symbols of the at least one symbol other than the flexible symbols are downlink symbols. If the terminal device is not configured with SFI, the direction of the at least one symbol will not be changed by SFI. Furthermore, the terminal device does not detect DCI indicating that one or more symbols of the at least one symbol are sending uplink signals or receiving downlink signals, then the at least one symbol is not an uplink symbol. Therefore, the terminal device may consider the at least one symbol to be a downlink symbol. In this case, the terminal device can measure CLI on the at least one symbol without causing a conflict of at least one symbol.

[0133] Condition three, the first resource is configured by RRC for measuring CLI, RRC does not configure the type of the at least one symbol, and the terminal device is not configured with SFI, and the terminal does not detect the DCI indication that one or more symbols in the at least one symbol are sent by an uplink signal or received by a downlink signal. Since the at least one symbol does not clearly specify what type of symbol it is, the at least one symbol can be used as a downlink symbol or as an uplink symbol. If the terminal device is not configured with SFI, the direction of the at least one symbol will not be changed by SFI. Furthermore, the terminal device does not detect the DCI indication that one or more symbols in the at least one symbol are sent by an uplink signal or received by a downlink signal, then the at least one symbol is not an uplink symbol, and one or more symbols in the at least one symbol do not overlap with the downlink signal. Therefore, the terminal device can consider the at least one symbol to be a downlink symbol. In this case, the terminal device can measure CLI on the at least one symbol without causing a conflict of at least one symbol.

[0134] Condition 4: The first resource is configured by RRC for measuring CLI, one or more symbols of the at least one symbol are configured by RRC as flexible symbols, symbols other than the flexible symbols in the at least one symbol are configured by RRC as downlink symbols, and the terminal device detects that the SFI indicates that the flexible symbols in the at least one symbol are downlink symbols. Alternatively, the first resource is configured by RRC for measuring CLI, the RRC does not configure the type of the at least one symbol, and the terminal device detects that the SFI indicates that the at least one symbol is a downlink symbol.

[0135] Similar to condition 2 or condition 3, if the symbol where the first resource is located does not explicitly specify the type of symbol, then the symbol where the first resource is located can be used as a downlink symbol or an uplink symbol. The at least one symbol includes a flexible symbol and a downlink symbol. Further, if the SFI indicates that the at least one symbol is a downlink symbol, then the terminal device clearly identifies the at least one symbol as a downlink symbol. In this case, the terminal device can measure the CLI on the at least one symbol without causing a conflict for the at least one symbol.

[0136] Condition 5: The at least one symbol is configured as a downlink symbol by RRC, and the terminal device detects a DCI indication to measure CLI on the first resource. If the at least one symbol is configured as a downlink symbol by RRC, the terminal device specifies that the at least one symbol is a downlink symbol. In this case, the terminal device can measure CLI on the at least one symbol without causing a conflict for the at least one symbol.

[0137] Condition six, one or more symbols of the at least one symbol are configured as flexible symbols by RRC, and symbols other than the flexible symbols in the at least one symbol are configured as downlink symbols by RRC, and the terminal device detects that the DCI indicates measurement CLI in the first resource, and the at least one symbol has no SFI configuration. Or, RRC does not configure the type of the at least one symbol, and the terminal device detects that the DCI indicates measurement CLI in the first resource, and the at least one symbol has no SFI configuration. One or more symbols of the at least one symbol are flexible symbols, or the type of the at least one symbol is not configured. Flexible symbols or symbols of unconfigured type can be used to receive downlink signals, and can also be used to send uplink signals. If the terminal device is not configured with SFI, the direction of the at least one symbol will not be changed by SFI. Furthermore, the DCI instructs the terminal device to measure CLI, and the terminal device can consider the at least one symbol to be a downlink symbol. In this case, the terminal device can measure CLI on the at least one symbol without causing a conflict for the at least one symbol.

[0138] Condition seven, one or more symbols of the at least one symbol are configured as flexible symbols by RRC, and symbols other than the flexible symbols in the at least one symbol are configured as downlink symbols by RRC, the terminal device detects that the DCI indicates measurement CLI in the first resource, and the at least one symbol has an SFI configuration, the terminal device does not detect SFI, or the terminal device detects that the SFI indicates that the at least one symbol is a flexible symbol or a downlink symbol. Alternatively, RRC does not configure the type of the at least one symbol, the terminal device detects that the DCI indicates measurement CLI in the first resource, and the at least one symbol has an SFI configuration, the terminal device does not detect SFI, or the terminal device detects that the SFI indicates that the at least one symbol is a flexible symbol or a downlink symbol. Compared to condition six, if the at least one symbol has an SFI configuration, but the terminal device does not detect SFI, the DCI indicates that the terminal device measures CLI, and the terminal device may consider the at least one symbol to be a downlink symbol. Alternatively, the terminal device detects that the SFI indicates that the at least one symbol is a flexible symbol or a downlink symbol, and measures CLI according to the SFI indication and the DCI indication, and the terminal device may consider the at least one symbol to be a downlink symbol. The terminal device can measure CLI on the at least one symbol without causing a conflict for the at least one symbol.

[0139] The embodiments of the present application clarify the triggering conditions for a terminal device to measure or not measure CLI. For example, if a configured CLI resource conflicts with other resources, the terminal device cancels CLI measurement. For another example, if an SFI indication conflicts with a configured CLI resource, the terminal device may also cancel CLI measurement. Because the terminal device cancels CLI measurement in the event of a CLI resource conflict, it can avoid impacting data transmission or reception by the terminal device.

[0140] above Figure 2 and Figure 4 The processes can be combined, that is, the CLI measurement method provided in the embodiment of the present application includes S201, S202 and S402, wherein the execution order of S202 and S402 is not limited. That is, S202 can be executed before S402 or after S402.

[0141] In the embodiments provided above, the methods provided in the embodiments of the present application are introduced from the perspective of the interaction between the terminal device and the network device. Among them, the steps performed by the network device can also be implemented separately by different communication devices. For example: the first device is used to determine the first resource, and the second device is used to send resource configuration information indicating the first resource, that is, the first device and the second device jointly complete the steps performed by the network device in the embodiment of the present application, and the present application does not limit the specific division method. When the network architecture includes one or more distributed units (DU), one or more centralized units (CU) and one or more radio frequency units (RU), the steps performed by the above network device can be implemented by DU, CU and RU respectively. In order to implement the various functions of the method provided in the embodiment of the present application, the terminal device and the network device may include hardware structure and / or software module, and implement the above functions in the form of hardware structure, software module, or hardware structure plus software module. Whether one of the above functions is performed in the form of hardware structure, software module, or hardware structure plus software module depends on the specific application and design constraints of the technical solution.

[0142] Based on the same inventive concept as the method embodiment, the present application embodiment provides a communication device. The following describes the communication device used to implement the above method in the present application embodiment with reference to the accompanying drawings.

[0143] Figure 5 Schematic block diagram of a communication device 500 provided in an embodiment of the present application. The communication device 500 may include a processing module 510 and a transceiver module 520. Optionally, a storage unit may be further included, which may be used to store instructions (code or program) and / or data. The processing module 510 and the transceiver module 520 may be coupled to the storage unit. For example, the processing unit 510 may read the instructions (code or program) and / or data in the storage unit to implement the corresponding method. The above-mentioned units may be independently provided or partially or fully integrated.

[0144] In some possible implementations, the communication device 500 can implement the behaviors and functions of the terminal device in the above method embodiments, for example, Figure 2 In the embodiment of the present invention, the terminal device performs the method, for example, Figure 4 For example, the communication device 500 may be a terminal device, or a component (such as a chip or circuit) used in a terminal device, or a chip or chipset in a terminal device or a part of a chip used to perform the function of the related method. The transceiver module 520 may be used to perform Figure 2 In the embodiment shown, all receiving or sending operations performed by the terminal device, such as Figure 2 S201 in the embodiment shown, and / or other processes for supporting the technology described herein. Figure 2 In the embodiment shown, all operations except the sending and receiving operations performed by the terminal device, such as Figure 2 S202 in the embodiment shown, and / or other processes for supporting the technology described herein. And / or, the transceiver module 520 can be used to perform Figure 4 In the embodiment shown, all receiving or sending operations performed by the terminal device, such as Figure 4 S401 in the embodiment shown, and / or other processes for supporting the technology described herein. Figure 4 In the embodiment shown, all operations except the sending and receiving operations performed by the terminal device, such as Figure 4 S402 in the illustrated embodiment, and / or other processes for supporting the techniques described herein.

[0145] In one possible implementation, the transceiver module 520 is configured to receive resource configuration information from a network device, where the resource configuration information indicates a first resource, where the first resource is used by the communication apparatus 500 to measure the CLI. The processing module 510 is configured to cancel CLI measurement on at least one symbol when a first specific condition is met, where the at least one symbol includes a symbol where the first resource is located.

[0146] As an optional implementation manner, the at least one symbol includes the symbol where the first resource is located and N0 symbols before the symbol where the first resource is located, where N0 is a positive integer.

[0147] In a possible implementation, the first specific condition includes: at least one symbol partially or completely overlaps with a symbol where the second resource is located, and the symbol where the second resource is located is an uplink symbol.

[0148] As an optional implementation manner, the first specific condition includes: the at least one symbol partially or completely overlaps with the third resource, and the third resource includes one or more symbols where valid PRACH opportunities are located.

[0149] As an optional implementation, the first specific condition includes: the at least one symbol partially or completely overlaps with the third resource, the third resource includes one or more valid PRACH opportunity symbols, and N before the one or more valid PRACH opportunities. gap At least one symbol among the symbols, N gap is an integer greater than or equal to 0.

[0150] In a possible implementation, the first specific condition includes: one or more symbols of the at least one symbol are indicated by DCI to be used for sending an uplink signal or receiving a downlink signal.

[0151] In one possible implementation, the first specific condition includes: one or more of the at least one symbol is configured as a flexible symbol by RRC or RRC does not configure the type of the at least one symbol, and the at least one symbol has an SFI configuration, the communication device 500 does not detect the SFI, and the communication device 500 does not detect the DCI indication in the first resource measurement CLI.

[0152] In one possible implementation, the first specific condition includes: one or more of the at least one symbol is configured by RRC as a flexible symbol or RRC does not configure the type of the at least one symbol, the communication device 500 detects that the SFI indicates that one or more of the at least one symbol is a flexible symbol, and the communication device 500 does not detect the DCI indication in the first resource measurement CLI.

[0153] As an optional implementation manner, the communication device is configured with multiple serving cells, the multiple serving cells include a reference cell and other cells, the other cells are serving cells in the serving cells other than the reference cell, and the first specific condition includes:

[0154] The first resource is configured by RRC in the reference cell for CLI measurement, and one or more of the at least one symbol are indicated by DCI in the other cell as being used for uplink signal transmission or PDSCH reception. Alternatively, the first resource is configured by RRC in the other cell for CLI measurement, and one or more of the at least one symbol are configured by RRC as uplink symbols in the reference cell. Alternatively, the first resource is configured by RRC in the other cell for CLI measurement, and one or more of the at least one symbol are configured by RRC in the reference cell as being used for uplink signal transmission or downlink signal reception.

[0155] As an optional implementation method, the communication device 500 satisfies the following characteristics: the communication device 500 supports half-duplex mode, and the communication device 500 is configured with multiple service cells; the communication device 500 does not support simultaneous transmission and reception in any service cell; the communication device 500 has half-duplex capability of unpaired spectrum CA; the communication device 500 has no SFI configuration in any service cell.

[0156] As an optional implementation manner, the first resource is configured by RRC in the serving cell for measuring CLI, and the at least one symbol is configured by RRC as a downlink symbol in the reference cell and as an uplink symbol in other cells.

[0157] As an optional implementation manner, the first resource is configured by RRC in the serving cell for measuring CLI, and the at least one symbol is configured by RRC as an uplink symbol in the reference cell and as a downlink symbol in other cells.

[0158] As an optional implementation manner, the reference cell and other cells correspond to different frequency bands.

[0159] In one possible implementation, the transceiver module 520 is configured to receive resource configuration information from a network device, where the resource configuration information indicates a first resource, and the first resource is used by the communication apparatus 500 to measure the CLI. The processing module 510 is configured to measure the CLI on a symbol where the first resource is located and N0 symbols preceding the symbol where the first resource is located, when a second specific condition is met, where N0 is an integer greater than or equal to 1.

[0160] As an optional implementation, the second specific condition includes one or more of the following conditions:

[0161] The first resource is configured by RRC for measuring CLI, and the at least one symbol is configured by RRC as a downlink symbol. Alternatively, the first resource is configured by RRC for measuring CLI, one or more symbols of the at least one symbol are configured by RRC as flexible symbols, symbols other than the flexible symbols in the at least one symbol are configured by RRC as downlink symbols, and the communication device 500 is not configured with SFI, and the communication device 500 does not detect that the DCI indicates that uplink signals are sent or downlink signals are received on one or more symbols of the at least one symbol. Alternatively, the first resource is configured by RRC for measuring CLI, RRC does not configure the type of the at least one symbol, and the communication device 500 is not configured with SFI, and the communication device 500 does not detect that the DCI indicates that uplink signals are sent or downlink signals are received on one or more symbols of the at least one symbol; or the first resource is configured by RRC for measuring CLI, one or more symbols of the at least one symbol are configured by RRC as flexible symbols, symbols other than the flexible symbols in the at least one symbol are configured as downlink symbols by RRC, and the communication device 500 detects that the SFI indicates that the flexible symbols in the at least one symbol are downlink symbols. Alternatively, the first resource is configured by RRC for measurement CLI, the RRC does not configure the type of the at least one symbol, and the communication device 500 detects that the SFI indicates that the at least one symbol is a downlink symbol. Alternatively, the at least one symbol is configured by RRC as a downlink symbol, and the communication device 500 detects that the DCI indicates measurement CLI on the first resource. Alternatively, one or more symbols of the at least one symbol are configured by RRC as flexible symbols, and symbols other than the flexible symbols of the at least one symbol are configured by RRC as downlink symbols, and the communication device 500 detects that the DCI indicates measurement CLI on the first resource, and that the at least one symbol does not have SFI configured. Alternatively, the RRC does not configure the type of the at least one symbol, and the communication device 500 detects that the DCI indicates measurement CLI on the first resource, and that the at least one symbol does not have SFI configured. Alternatively, one or more symbols of the at least one symbol are configured by RRC as flexible symbols, and symbols other than the flexible symbols in the at least one symbol are configured by RRC as downlink symbols, the communication device 500 detects that the DCI indication is in the first resource measurement CLI, and the at least one symbol has an SFI configuration, the communication device 500 does not detect the SFI or the communication device 500 detects that the SFI indicates that the at least one symbol is a flexible symbol or a downlink symbol; or, RRC does not configure the type of the at least one symbol, the communication device 500 detects that the DCI indication is in the first resource measurement CLI, and the at least one symbol has an SFI configuration, the communication device 500 does not detect the SFI or the communication device 500 detects that the SFI indicates that the at least one symbol is a flexible symbol or a downlink symbol.

[0162] like Figure 6 The figure shows a communication device 600 provided in an embodiment of the present application. The communication device 600 may be a terminal device capable of implementing the functions of the terminal device in the method provided in an embodiment of the present application. The communication device 600 may also be a device capable of supporting the terminal device in implementing the corresponding functions in the method provided in an embodiment of the present application. The communication device 600 may be a chip system. In the embodiment of the present application, the chip system may be composed of a chip or may include a chip and other discrete devices.

[0163] In terms of hardware implementation, the transceiver module 520 may be a transceiver, which is integrated into the communication device 600 to form the communication interface 610 .

[0164] The communication device 600 includes at least one processor 620, which is used to implement or support the communication device 600 in implementing the functions of the terminal device in the method provided in the embodiment of the present application. For details, please refer to the detailed description in the method example, which will not be repeated here.

[0165] The communication device 600 may also include at least one memory 630 for storing program instructions and / or data. The memory 630 is coupled to the processor 620. The coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which may be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 620 may operate in conjunction with the memory 630. The processor 620 may execute program instructions and / or data stored in the memory 630 so that the communication device 600 implements the corresponding method. At least one of the at least one memory may be included in the processor. It should be noted that the memory 630 is not necessary, so in Figure 6 It is indicated by dotted lines.

[0166] The communication device 600 may also include a communication interface 610 for communicating with other devices via a transmission medium, thereby enabling the device in the communication device 600 to communicate with the other device. For example, when the communication device is a terminal device, the other device is a network device. The processor 620 may use the communication interface 610 to send and receive data. The communication interface 610 may specifically be a transceiver.

[0167] The specific connection medium between the communication interface 610, the processor 620 and the memory 630 is not limited in the embodiment of the present application. Figure 6 The memory 630, the processor 620 and the communication interface 610 are connected via a bus 640. Figure 6The connections between the other components are shown in bold lines, which are only for illustration and are not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, Figure 6 Only one thick line is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0168] In the embodiments of the present application, the processor 620 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of the present application may be directly implemented as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0169] In an embodiment of the present application, the memory 630 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), or a volatile memory (volatile memory), such as a random-access memory (RAM). A memory is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory in the embodiment of the present application may also be a circuit or any other device that can implement a storage function, for storing program instructions and / or data.

[0170] It should be noted that the communication device in the above embodiments can be a terminal device or a circuit, or a chip used in a terminal device or other combined devices, components, etc. with the functions of the above terminal devices. When the communication device is a terminal device, the transceiver module can be a transceiver, which can include an antenna and a radio frequency circuit, etc., and the processing module can be a processor, such as a central processing unit (CPU). When the communication device is a component with the above terminal functions, the transceiver module can be a radio frequency unit, and the processing module can be a processor. When the communication device is a chip system, the transceiver module can be the input and output interface of the chip system, and the processing module can be the processor of the chip system.

[0171] Figure 7 A simplified schematic diagram of the structure of a communication device is shown. For ease of understanding and illustration, Figure 7 In the example, the communication device is a base station. The base station can be applied to Figure 1 In the system shown, it can be Figure 1 The network device in the embodiment performs the functions of the network device in the above method embodiment.

[0172] The communication device 700 may include a transceiver 710, a memory 721, and a processor 722. The transceiver 710 may be used for communication, such as for sending or receiving the aforementioned first indication information or capability information. The memory 721 is coupled to the processor 722 and may be used to store the programs and data necessary for the communication device 700 to implement various functions. The processor 722 is configured to support the communication device 700 in executing the corresponding functions of the aforementioned method, which may be implemented by invoking the programs stored in the memory 721.

[0173] Specifically, the transceiver 710 can be a wireless transceiver, which can be used to support the communication device 700 to receive and send signaling and / or data through a wireless air interface. The transceiver 710 can also be called a transceiver unit or a communication unit. The transceiver 710 may include one or more radio frequency units 712 and one or more antennas 711, wherein the radio frequency unit, such as a remote radio uLit (RRU) or an active antenna unit (AAU), can be specifically used for transmitting radio frequency signals and converting radio frequency signals into baseband signals, and the one or more antennas can be specifically used for radiating and receiving radio frequency signals. Optionally, the transceiver 710 can only include the above radio frequency units. In this case, the communication device 700 may include a transceiver 710, a memory 721, a processor 722 and an antenna 711.

[0174] The memory 721 and the processor 722 may be integrated or independent of each other. Figure 7As shown, the memory 721 and the processor 722 can be integrated into the control unit 720 of the communication device 700. Exemplarily, the control unit 720 may include a baseband unit (BBU) of an LTE base station, which may also be called a digital unit (DU). Alternatively, the control unit 710 may include a distributed unit (DU) and / or a centralized unit (CU) in a base station under 5G and future wireless access technologies. The control unit 720 may be composed of one or more antenna panels, wherein multiple antenna panels may jointly support a wireless access network of a single access standard (such as an LTE network), or multiple antenna panels may respectively support wireless access networks of different access standards (such as an LTE network, a 5G network, or other networks). The memory 721 and processor 722 may serve one or more antenna panels. That is, the memory 721 and processor 722 may be separately provided on each antenna panel. Alternatively, multiple antenna panels may share the same memory 721 and processor 722. In addition, each antenna panel may be provided with necessary circuits, for example, the circuits may be used to achieve coupling between the memory 721 and the processor 722. The transceiver 710, the processor 722, and the memory 721 may be connected via a bus structure and / or other connection media.

[0175] based on Figure 7 In the illustrated structure, when communication device 700 needs to transmit data, processor 722 performs baseband processing on the data to be transmitted and outputs the baseband signal to the RF unit. The RF unit then performs RF processing on the baseband signal and transmits the RF signal via the antenna in the form of electromagnetic waves. When data is transmitted to communication device 700, the RF unit receives the RF signal via the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to processor 722. Processor 722 converts the baseband signal into data and processes the data.

[0176] Based on Figure 7 In the illustrated structure, the transceiver 710 may be configured to execute the steps executed by the transceiver module 520 . And / or, the processor 722 may be configured to call instructions in the memory 721 to execute the steps executed by the processing module 510 .

[0177] Figure 8 A simplified schematic diagram of the terminal device is shown. Figure 8 In the example, the terminal device is a mobile phone. Figure 8As shown, the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and input and output devices. The processor is mainly used to process communication protocols and communication data, as well as to control the on-board unit, execute software programs, process software program data, etc. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used to convert baseband signals and radio frequency signals and process radio frequency signals. The antenna is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of devices may not have input and output devices.

[0178] When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs the baseband signal to the RF circuit. The RF circuit performs RF processing on the baseband signal and then transmits the RF signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data. For ease of explanation, Figure 8 Only one memory and processor are shown. In actual device products, one or more processors and one or more memories may exist. Memory may also be referred to as a storage medium or storage device. The memory may be provided independently of the processor or integrated with the processor, and this is not limited in the embodiments of the present application.

[0179] In the embodiment of the present application, the antenna and the radio frequency circuit with transceiver functions can be regarded as the transceiver unit of the device, and the processor with processing function can be regarded as the processing unit of the device. Figure 8 As shown, the device includes a transceiver unit 810 and a processing unit 820. The transceiver unit 810 may also be referred to as a transceiver, transceiver, transceiver device, etc. The processing unit 820 may also be referred to as a processor, processing board, processing module, processing device, etc. Optionally, the device in the transceiver unit 810 that implements the receiving function may be considered a receiving unit, and the device in the transceiver unit 810 that implements the transmitting function may be considered a transmitting unit, that is, the transceiver unit 810 includes a receiving unit and a transmitting unit. The transceiver unit 810 may also be sometimes referred to as a transceiver, transceiver, or transceiver circuit. The receiving unit may also be sometimes referred to as a receiver, receiver, or receiving circuit. The transmitting unit may also be sometimes referred to as a transmitter, transmitter, or transmitting circuit, etc.

[0180] It should be understood that the transceiver unit 810 is used to perform the sending and receiving operations on the terminal device side in the above method embodiment, and the processing unit 820 is used to perform other operations on the terminal device in addition to the sending and receiving operations in the above method embodiment. For example, in one implementation, the transceiver unit 810 can be used to perform Figure 2 S201 in the embodiment shown, and / or other processes for supporting the technology described herein. The processing unit 820 may be used to execute Figure 2 S202 in the embodiment shown, and / or other processes for supporting the technology described herein. For example, in one implementation, the transceiver unit 810 may be configured to execute Figure 4 S401 in the embodiment shown, and / or other processes used to support the technology described herein. The processing unit 820 can be used to perform Figure 4 S402 in the illustrated embodiment, and / or other processes for supporting the techniques described herein.

[0181] When the communication device is a chip-type device or circuit, the device may include a transceiver unit and a processing unit, wherein the transceiver unit may be an input / output circuit and / or a communication interface; and the processing unit may be an integrated processor, microprocessor, or integrated circuit.

[0182] The embodiment of the present application also provides a communication system, specifically, the communication system includes a network device and a terminal device, or may also include more network devices and multiple terminal devices. Exemplarily, the communication system includes a method for implementing the above Figure 2 or Figure 4 Network equipment and terminal equipment with related functions.

[0183] The network devices are respectively used to implement the above Figure 2 or Figure 4 The terminal device is used to implement the functions of the relevant network part. Figure 2 or Figure 4 The functions of the relevant terminal devices are described in detail in the above method embodiments, which will not be repeated here.

[0184] The present application also provides a computer-readable storage medium including instructions that, when executed on a computer, cause the computer to execute Figure 2 or Figure 4 A method executed by a network device in a computer; or when it is run on a computer, causing the computer to execute Figure 2 or Figure 4 The method executed by the terminal device.

[0185] The present application also provides a computer program product including instructions, which, when executed on a computer, causes the computer to execute Figure 2 or Figure 4 A method executed by a network device in a computer; or when it is run on a computer, causing the computer to execute Figure 2 or Figure 4 The method executed by the terminal device.

[0186] An embodiment of the present application provides a chip system, which includes a processor and may also include a memory, for implementing the functions of the network device or terminal in the aforementioned method; or for implementing the functions of the network device and terminal in the aforementioned method. The chip system can be composed of a chip or can include a chip and other discrete devices.

[0187] It should be understood that the terms "system" and "network" in the embodiments of the present application can be used interchangeably. "At least one" refers to one or more, and "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can represent: a, b, c, a and b, a and c, b and c, or a, b and c, where a, b, c can be single or multiple.

[0188] Furthermore, unless otherwise indicated, ordinal numbers such as "first" and "second" in the embodiments of this application are used to distinguish between multiple objects and are not used to limit the order, timing, priority, or importance of multiple objects. For example, the first specific condition and the second specific condition are only used to distinguish different specific conditions and do not indicate a difference in priority or importance between the two specific conditions.

[0189] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0190] Those skilled in the art will appreciate that the various illustrative logical blocks and steps described in conjunction with the embodiments disclosed herein can be implemented using electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0191] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0192] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0193] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0194] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0195] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A method for measuring cross-link interference (CLI), characterized in that: The method comprises: receiving resource configuration information from a network device, where the resource configuration information indicates a first resource, and the first resource is used by a terminal device to measure a CLI; When the second specific condition is met, measuring the CLI on at least one symbol, where the at least one symbol includes the symbol where the first resource is located, or the at least one symbol includes the symbol where the first resource is located and N0 symbols before the symbol where the first resource is located, where N0 is an integer; The second specific condition includes: The first resource is configured by a radio resource control RRC for measuring a CLI, and the at least one symbol is configured by the RRC as a downlink symbol; or The first resource is configured by a radio resource control RRC for measuring a CLI, one or more symbols of the at least one symbol are configured by the RRC as flexible symbols, symbols other than the flexible symbols in the at least one symbol are configured by the RRC as downlink symbols, and the terminal device is not configured with an SFI, and the terminal device does not detect a DCI indication to send an uplink signal or receive a downlink signal on one or more symbols of the at least one symbol; or, The first resource is configured by a radio resource control RRC for measuring a CLI, the RRC does not configure the type of the at least one symbol, the terminal device is not configured with an SFI, and the terminal device does not detect a DCI indicating that an uplink signal is sent or a downlink signal is received on one or more symbols of the at least one symbol; or The first resource is configured by a radio resource control RRC for measuring a CLI, one or more symbols of the at least one symbol are configured by the RRC as flexible symbols, symbols other than the flexible symbols in the at least one symbol are configured by the RRC as downlink symbols, and the terminal device detects that a slot format indication SFI indicates that the flexible symbols in the at least one symbol are downlink symbols; or The first resource is configured by a radio resource control RRC for measuring a CLI, the RRC does not configure the type of the at least one symbol, and the terminal device detects that a slot format indication SFI indicates that the at least one symbol is a downlink symbol; or, The at least one symbol is configured as a downlink symbol by RRC, and the terminal device detects that the DCI indicates the first resource measurement CLI; or One or more symbols of the at least one symbol are configured by RRC as flexible symbols, symbols other than the flexible symbols of the at least one symbol are configured by RRC as downlink symbols, and the terminal device detects that the DCI indication is in the first resource measurement CLI, and the at least one symbol has no SFI configuration; or, RRC does not configure the type of the at least one symbol, and the terminal device detects that the DCI indicates the first resource measurement CLI, and the at least one symbol does not have an SFI configuration; or, One or more symbols of the at least one symbol are configured by RRC as flexible symbols, symbols other than the flexible symbols of the at least one symbol are configured by RRC as downlink symbols, the terminal device detects that the DCI indicates the first resource measurement CLI, and the at least one symbol has an SFI configuration, the terminal device does not detect the SFI or the terminal device detects that the SFI indicates that the at least one symbol is a flexible symbol or a downlink symbol; or, RRC does not configure the type of the at least one symbol, the terminal device detects that the DCI indicates the CLI in the first resource measurement, and the at least one symbol has an SFI configuration, the terminal device does not detect the SFI or the terminal device detects that the SFI indicates that the at least one symbol is a flexible symbol or a downlink symbol.

2. A communication device, characterized in that: It includes a transceiver module and a processing module, wherein: The transceiver module is configured to receive resource configuration information from a network device, where the resource configuration information indicates a first resource, and the first resource is used by the terminal device to measure the CLI; The processing module is configured to measure the CLI on at least one symbol when a second specific condition is met, where the at least one symbol includes a symbol where the first resource is located, or the at least one symbol includes a symbol where the first resource is located and N0 symbols before the symbol where the first resource is located, where N0 is an integer; The second specific condition includes: The first resource is configured by a radio resource control RRC for measuring a CLI, and the at least one symbol is configured by the RRC as a downlink symbol; or The first resource is configured by a radio resource control RRC for measuring a CLI, one or more symbols of the at least one symbol are configured by the RRC as flexible symbols, symbols other than the flexible symbols in the at least one symbol are configured by the RRC as downlink symbols, and the terminal device is not configured with an SFI, and the terminal device does not detect a DCI indication to send an uplink signal or receive a downlink signal on one or more symbols of the at least one symbol; or, The first resource is configured by a radio resource control (RRC) for measuring a CLI, the RRC does not configure a type of the at least one symbol, the communication device is not configured with an SFI, and the communication device does not detect a DCI indicating that an uplink signal is transmitted or a downlink signal is received on one or more symbols of the at least one symbol; or The first resource is configured by a radio resource control (RRC) for measuring a CLI, one or more symbols of the at least one symbol are configured by the RRC as flexible symbols, symbols other than the flexible symbols of the at least one symbol are configured by the RRC as downlink symbols, and the communication device detects that a slot format indication (SFI) indicates that the flexible symbols of the at least one symbol are downlink symbols; or The first resource is configured by a radio resource control RRC for measuring a CLI, the RRC does not configure the type of the at least one symbol, and the communication device detects that a slot format indicator SFI indicates that the at least one symbol is a downlink symbol; or The at least one symbol is configured as a downlink symbol by RRC, and the communication device detects that the DCI indicates the first resource measurement CLI; or One or more symbols of the at least one symbol are configured by RRC as flexible symbols, symbols other than the flexible symbols of the at least one symbol are configured by RRC as downlink symbols, and the communication device detects that a DCI indication is in the first resource measurement CLI, and the at least one symbol has no SFI configuration; or RRC does not configure the type of the at least one symbol, and the communication device detects that the DCI indicates the first resource measurement CLI, and the at least one symbol does not have an SFI configuration; or, One or more symbols of the at least one symbol are configured by RRC as flexible symbols, symbols other than the flexible symbols of the at least one symbol are configured by RRC as downlink symbols, the communication device detects that a DCI indication is in the first resource measurement CLI, and the at least one symbol has an SFI configuration, the communication device does not detect the SFI or the communication device detects that the SFI indicates that the at least one symbol is a flexible symbol or a downlink symbol; or, RRC does not configure the type of the at least one symbol, the communication device detects that the DCI indicates the first resource measurement CLI, and the at least one symbol has an SFI configuration, the communication device does not detect the SFI or the communication device detects that the SFI indicates that the at least one symbol is a flexible symbol or a downlink symbol.

3. A communication device, characterized in that: The method comprises a processor and a communication interface, wherein the communication interface is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor is used to implement the method as claimed in claim 1 through logic circuits or execution code instructions.

4. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed, the method according to claim 1 is implemented.

5. A computer program product, characterized in that The computer program product comprises: a computer program code, and when the computer program code is executed, the method according to claim 1 is implemented.

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