Interference elimination method and communication apparatus

Abstract

The present application provides an interference elimination method and a communication apparatus. The method comprises: a first network device sending first indication information to a first terminal device, wherein the first indication information is configured to indicate at least one of the following: resource allocation of the first terminal device on at least one first resource of first frequency resources, and first filter information or first antenna information; and the first frequency resources comprise a plurality of first resources, any two first resources being non-contiguous. In the method provided by the present application, the first network device can adjust frequency resource allocation positions for the first terminal device and can instruct the first terminal device to receive the first filter information and first antenna information of a signal, so that the first terminal device can acquire a resource allocation position on the at least one first resource and receive filter information of the signal on the first resource or receive the first antenna information of the signal on the first resource, thereby eliminating the interference of different operators on the signal received by the first terminal device.

Description

Interference elimination method and communication device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on November 29, 2023, with application number 2023116268870 and application name “A method for interference elimination and a communication device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and more specifically, to an interference elimination method and a communication device. Background Art

[0003] In the inter-operator broadband communication solution, there is a situation where operator A and operator B jointly occupy continuous frequency resources, and the frequency band resources of operator A may be distributed on both sides of the frequency band resources of another operator B. When the terminal equipment communicating in the operator A network uses a broadband filter including continuous frequency resources to receive the signal, the received signal of operator A contains interference from the transmission signal of operator B or the terminal equipment communicating on operator B. Therefore, how to eliminate this interference is an issue that needs attention at present. Summary of the Invention

[0004] The present application provides a method and a communication device for eliminating interference, in which a base station instructs a terminal device to measure and report interference from other operators. The base station adjusts resource allocation to the terminal device according to the degree of interference and instructs the terminal device to use a broadband filter or a narrowband filter to receive signals, thereby eliminating interference from other operators on the terminal device's received signals.

[0005] In a first aspect, a method for interference elimination is provided. The method provided in the first aspect can be executed by a first network device or by a chip configured in the first network device, and this application does not limit this.

[0006] Specifically, the method includes: sending first indication information to the first terminal device, the first indication information is used to indicate at least one of the following: resource allocation of the first terminal device on at least one first resource of the first frequency resource, first filter information, or first antenna information, wherein the first frequency resource includes multiple first resources, and any two first resources among the multiple first resources are discontinuous.

[0007] The first aspect provides a method for eliminating interference, in which the first network device can adjust the allocation position of frequency resources for the first terminal device and the first filter information and first antenna information indicating that the first terminal device receives a signal, so that the first terminal device can obtain the resource allocation position on at least one first resource, as well as the filter information for receiving a signal on at least one first resource or the first antenna information for receiving a signal on at least one first resource, thereby eliminating the interference of other operators on the reception of signals by the first terminal device.

[0008] It should be noted that the first network device belongs to the first operator, the second network device belongs to the second operator, the first terminal device communicates on the first operator, and the first frequency resources include frequency resources occupied by the first operator and frequency resources occupied by the second operator. The frequency resources occupied by the first operator on the first frequency resources are non-continuous.

[0009] It should be understood that the second indication information is determined based on the interference of the second network device on the first terminal device. The interference of the second network device on the signal received by the first terminal device also includes the interference of the second terminal device communicating on the second network device on the signal received by the first terminal device. Alternatively, the interference may also include the interference of other network devices or terminal devices communicating on other networks on the signal received by the first terminal device. The embodiment of the present application does not specifically limit the source of the interference.

[0010] It should also be noted that the first frequency resource may include more operators, and the embodiment of the present application does not specifically limit the operators accessed by the first operator in the non-contiguous frequency resources occupied by the first frequency resource.

[0011] It should be understood that the resources within the first resource may be continuous or discontinuous, and this embodiment of the present application does not specifically limit this.

[0012] In a possible implementation manner of the first aspect, the first filter information includes one or more filter bandwidths, and the one or more filter bandwidths include the frequency resource size of at least one first resource or the frequency resource size of an allocated resource on at least one first resource.

[0013] In this implementation, the first network device can indicate a narrowband filter bandwidth to the first terminal device, so that the first terminal device receives signals based on the narrowband filter bandwidth and avoids receiving signals on the corresponding spectrum of other operators, thereby avoiding or reducing interference of other operators with the reception of signals by the first terminal device; or the first network device can indicate two narrowband filter bandwidths to the first terminal device, so that the first terminal device receives signals based on the two narrowband filter bandwidths and avoids receiving signals on the corresponding spectrum of other operators, thereby avoiding or reducing interference of other operators with the reception of signals by the first terminal device; or the first network device can indicate multiple narrowband filter bandwidths to the first terminal device. It should be understood that the multiple narrowband filter bandwidths do not include all first resources, that is, when the first terminal device receives signals based on multiple narrowband filters, it avoids receiving signals on the corresponding spectrum of other operators, thereby avoiding or reducing interference of other operators with the reception of signals by the first terminal device.

[0014] It should be noted that a filter bandwidth may be the frequency resource size of at least one first resource, or a filter bandwidth may be the frequency resource size of an allocated resource on at least one first resource. Alternatively, a filter bandwidth may be greater than the frequency resource size of the first resource but less than the sum of the frequency resource size of the first resource and a second threshold, or a filter bandwidth may be greater than the frequency resource size of the allocated resource on the first resource but less than the sum of the frequency resource size of the first resource and a second threshold. It should be understood that the second threshold may be a predefined filter bandwidth tolerance.

[0015] In a possible implementation manner of the first aspect, one or more filter bandwidths have a first association relationship with the first resource or an allocated resource on the first resource.

[0016] The first association relationship is used to indicate that when the filter corresponding to the filter bandwidth allocated by the first network device to the first terminal device is used on the corresponding first resource, the frequency center of the filter is consistent with the frequency center of the first resource, or the first association relationship is used to indicate that when the filter corresponding to the filter bandwidth allocated by the first network device to the first terminal device is used on the allocated resource of the corresponding first resource, the frequency center of the filter is consistent with the frequency center of the allocated resource of the first resource.

[0017] In a possible implementation of the first aspect, the first antenna information includes one or more of the following: antenna port, transmission configuration indication TCI, sounding reference signal SRS request and demodulation reference signal DMRS sequence initialization information, the number of first antenna information is one or more, and the first antenna information is applied to at least one first resource or at least one allocated resource of the first resource.

[0018] In this implementation, the first antenna information can be multiple, that is, in an embodiment of the present application, when the first network device allocates resources to two non-contiguous first resources, the first network device needs to indicate the antenna ports, precoding information, TCI, SRS request and DMRS sequence initialization information on the two first resources respectively through a DCI or MAC CE signaling.

[0019] In one possible implementation of the first aspect, one or more first antenna information items have a second association relationship with the first resource or an allocated resource on the first resource. In this implementation, the first network device sends the first antenna information to the first terminal device based on the location of the first resource or the location of the allocated resource on the first resource.

[0020] In a possible implementation of the first aspect, when the interference is greater than or equal to a first threshold, resource allocation on at least one first resource of the first frequency resource includes: allocating resources on a first resource among multiple first resources, and the first filter information includes: the bandwidth of the filter includes the frequency resource size of a first resource or the frequency resource size of an allocated resource on a first resource. In this implementation, when the second operator's interference with the first terminal device's reception of a signal is relatively large, the first network device may allocate resources in any one of the two non-contiguous first resources occupied by the first operator, and the first network device instructs the first terminal device to receive signals using a filter bandwidth of the frequency resource size of the first resource on the first resource for communication, or the first network device instructs the first terminal device to receive signals using a filter bandwidth of the frequency resource size of the first resource on the allocated resource on the first resource for communication, thereby eliminating the strong interference of the second network device on the first terminal device's reception of a signal.

[0021] It should be noted that interference greater than or equal to the first threshold can be understood as a parameter characterizing the interference being greater than or equal to the first threshold. The parameter characterizing the interference may be RSRP, RSRQ, or RSSI. The parameter characterizing the interference may also be other power indicators of the reference signal. This embodiment of the present application does not specifically limit this.

[0022] It should also be noted that the first threshold can be determined based on specific interference parameters, and this embodiment of the present application does not limit this.

[0023] In a possible implementation of the first aspect, when the interference is greater than or equal to a first threshold, resource allocation on at least one first resource of the first frequency resource includes: allocating resources on two first resources among multiple first resources, and the first filter information includes: the bandwidth of the filter includes the frequency resource size of one first resource or the frequency resource size of the allocated resource on one first resource, wherein the two first resources respectively correspond to one first antenna information. In this implementation, when the second operator's interference with the first terminal device is relatively large, the first network device can allocate resources on two non-contiguous first resources occupied by the first operator, and the first network device instructs the first terminal device to receive signals using the frequency resource size of the first resource or the frequency resource size of the allocated resource on one first resource on the two first resources for communication, thereby eliminating the strong interference of the second network device on the signal received by the first terminal device.

[0024] In one possible implementation of the first aspect, the two first resources or allocated resources on the two first resources correspond to different antenna ports. In this implementation, because the first network device allocates resources to the first terminal device from the two first resources respectively and instructs the first terminal device to use two narrowband filters to receive signals, the first network device needs to instruct the first terminal device to use different antenna ports when receiving signals on the two first resources or the allocated resources on the two first resources.

[0025] In a possible implementation manner of the first aspect, the two first resources or the allocated resources on the two first resources correspond to the same antenna port.

[0026] In a possible implementation of the first aspect, the sum of the number of antenna ports corresponding to the two first resources or the allocated resources on the two first resources is less than or less than or equal to the maximum number of antenna ports of the first terminal device. In this implementation, since the first network device allocates resources to the first terminal device in the two first resources respectively, and instructs the first terminal device to use two narrowband filters to receive signals, the maximum number of streams of each signal is limited and the maximum number of streams cannot be reached. Therefore, the first network device can indicate the number of antenna ports for receiving signals to the first terminal device, and the sum of the number of antenna ports corresponding to the two first resources or the allocated resources on the two first resources is less than or less than or equal to the maximum number of antenna ports of the first terminal device.

[0027] In a possible implementation of the first aspect, the number of antenna ports corresponding to the two first resources or the allocated resources on the two first resources is less than or equal to half of the maximum number of antenna ports of the first terminal device. In this implementation, since the first network device allocates resources and uses the same port to the first terminal device in the two first resources respectively, and instructs the first terminal device to use two narrowband filters to receive signals, the signals on the two resources carry the same information and the maximum number of signal streams is limited to half of the maximum number of streams. Therefore, the first network device can indicate the number of antenna ports for receiving signals to the first terminal device, and the number of antenna ports corresponding to the two first resources or the allocated resources on the two first resources is the same and is less than or equal to half of the maximum number of antenna ports of the first terminal device.

[0028] In a possible implementation of the first aspect, the method further includes: the first network device sends second indication information to the first terminal device, the second indication information is used to instruct the first terminal device to measure and report interference caused by the second network device on the first terminal device's received signal, the first network device belongs to the first operator, the second network device belongs to the second operator, the first terminal device communicates on the first operator, the first frequency resources include frequency resources occupied by the first operator and frequency resources occupied by the second operator, and the frequency resources occupied by the first operator on the first frequency resources are non-continuous. In this implementation, the first network device can instruct the first terminal device to measure and report interference caused by other operators on the first terminal device's received signal, and the first network device determines the first indication information based on the interference measurement results measured and reported by the first terminal device.

[0029] Optionally, the second indication information sent by the first network device to the first terminal device may also include the measurement object of the interference signal and the measurement position of the interference signal, that is, the position in the time domain and / or frequency domain occupied by the interference signal.

[0030] In the second aspect, a method for interference elimination is provided. The method provided in the second aspect can be executed by the first terminal device or by a chip configured in the first terminal device, and this application does not limit this.

[0031] Specifically, the method includes: a first terminal device receives first indication information sent by a first network device, the first indication information being used to indicate at least one of the following: resource allocation of the first terminal device on at least one first resource of a first frequency resource, first filter information, or first antenna information, wherein the first frequency resource includes multiple first resources, and any two of the multiple first resources are discontinuous. Based on the first indication information, at least one of the following is determined: resource allocation information on at least one first resource of the first frequency resource, first filter information for receiving signals on the at least one first resource, or first antenna information for receiving signals on the at least one first resource.

[0032] The second aspect provides a method for eliminating interference, in which the first terminal device can receive the allocation position of frequency resources of the first network device on at least one first resource, and receive the first filter information when receiving the signal on at least one first resource and the first antenna information when receiving the signal on at least one first resource. The first terminal device can eliminate interference from different operators when receiving signals based on the resource allocation position on at least one first resource, and the filter information for receiving the signal on at least one first resource or the first antenna information for receiving the signal on at least one first resource.

[0033] It should be noted that the first network device belongs to the first operator, the second network device belongs to the second operator, the first terminal device communicates on the first operator, and the first frequency resources include frequency resources occupied by the first operator and frequency resources occupied by the second operator. The frequency resources occupied by the first operator on the first frequency resources are non-continuous.

[0034] It should be understood that the second indication information is determined based on the interference of the second network device on the first terminal device. The interference of the second network device on the signal received by the first terminal device also includes the interference of the second terminal device communicating on the second network device on the signal received by the first terminal device. Alternatively, the interference may also include the interference of other network devices or terminal devices communicating on other networks on the signal received by the first terminal device. The embodiment of the present application does not specifically limit the source of the interference.

[0035] It should also be noted that the first frequency resource may include more operators, and the embodiment of the present application does not specifically limit the operators accessed by the first operator in the non-contiguous frequency resources occupied by the first frequency resource.

[0036] It should be understood that the resources within the first resource may be continuous or discontinuous, and this embodiment of the present application does not specifically limit this.

[0037] In a possible implementation of the second aspect, the first filter information includes one or more filter bandwidths, and the one or more filter bandwidths include the frequency resource size of at least one first resource or the frequency resource size of an allocated resource on at least one first resource.

[0038] In this implementation, the first network device can indicate a narrowband filter bandwidth to the first terminal device, so that the first terminal device receives signals based on the narrowband filter bandwidth and avoids receiving signals on the corresponding spectrum of other operators, thereby avoiding or reducing interference of other operators with the reception of signals by the first terminal device; or the first network device can indicate two narrowband filter bandwidths to the first terminal device, so that the first terminal device receives signals based on the two narrowband filter bandwidths and avoids receiving signals on the corresponding spectrum of other operators, thereby avoiding or reducing interference of other operators with the reception of signals by the first terminal device; or the first network device can indicate multiple narrowband filter bandwidths to the first terminal device. It should be understood that the multiple narrowband filter bandwidths do not include all first resources, that is, the first terminal device can avoid receiving signals on the corresponding spectrum of other operators when receiving signals based on multiple narrowband filters, thereby avoiding or reducing interference of other operators with the reception of signals by the first terminal device.

[0039] It should be noted that a filter bandwidth may be the frequency resource size of at least one first resource, or a filter bandwidth may be the frequency resource size of an allocated resource on at least one first resource. Alternatively, a filter bandwidth may be greater than the frequency resource size of the first resource but less than the sum of the frequency resource size of the first resource and a second threshold, or a filter bandwidth may be greater than the frequency resource size of the allocated resource on the first resource but less than the sum of the frequency resource size of the first resource and a second threshold. It should be understood that the second threshold may be a predefined filter bandwidth tolerance.

[0040] In a possible implementation manner of the second aspect, one or more filter bandwidths have a first association relationship with the first resource or an allocated resource on the first resource.

[0041] The first association relationship is used to indicate that when the filter corresponding to the filter bandwidth allocated by the first network device to the first terminal device is used on the corresponding first resource, the frequency center of the filter is consistent with the frequency center of the first resource, or the first association relationship indicates that when the filter corresponding to the filter bandwidth allocated by the first network device to the first terminal device is used on the allocated resource of the corresponding first resource, the frequency center of the filter is consistent with the frequency center of the allocated resource of the first resource.

[0042] In a possible implementation of the second aspect, the first antenna information includes one or more of the following: antenna port, transmission configuration indication TCI, sounding reference signal SRS request and demodulation reference signal DMRS sequence initialization information, the number of first antenna information is one or more, and the first antenna information is applied to at least one first resource or at least one allocated resource of the first resource.

[0043] In this implementation, the first antenna information can be multiple, that is, in an embodiment of the present application, when the first network device allocates resources to two non-contiguous first resources, the first network device needs to indicate the antenna ports, precoding information, TCI, SRS request and DMRS sequence initialization information on the two first resources respectively through a DCI or MAC CE signaling.

[0044] In one possible implementation of the second aspect, one or more first antenna information items have a second association relationship with the first resource or an allocated resource on the first resource. In this implementation, the first network device sends the first antenna information to the first terminal device based on a location of the first resource or a location of an allocated resource on the first resource.

[0045] In a possible implementation of the second aspect, when the interference is greater than or equal to the first threshold, resource allocation on at least one first resource of the first frequency resource includes: allocating resources on one first resource among multiple first resources, and the first filter information includes: the bandwidth of the filter includes the frequency resource size of one first resource or the frequency resource size of the allocated resource on one first resource. In this implementation, when the second operator's interference with the first terminal device's reception of signals is relatively large, the first network device may allocate resources in any one of the two non-contiguous first resources occupied by the first operator, and the first network device instructs the first terminal device to receive signals using the filter bandwidth of the frequency resource size of the first resource on the first resource for communication, or the first network device instructs the first terminal device to receive signals using the filter bandwidth of the frequency resource size of the first resource on the allocated resource on the first resource for communication, thereby eliminating the strong interference of the second network device on the first terminal device's reception of signals.

[0046] It should be noted that interference greater than or equal to the first threshold can be understood as a parameter characterizing the interference being greater than or equal to the first threshold. The parameter characterizing the interference may be RSRP, RSRQ, or RSSI. The parameter characterizing the interference may also be other power indicators of the reference signal. This embodiment of the present application does not specifically limit this.

[0047] It should also be noted that the first threshold can be determined based on specific interference parameters, and this embodiment of the present application does not limit this.

[0048] In a possible implementation of the second aspect, when the interference is greater than or equal to a first threshold, resource allocation on at least one first resource of the first frequency resource includes: allocating resources on two first resources among multiple first resources, and the first filter information includes: the bandwidth of the filter includes the frequency resource size of one first resource or the frequency resource size of the allocated resource on one first resource, wherein the two first resources respectively correspond to one first antenna information. In this implementation, when the second operator's interference with the first terminal device is relatively large, the first network device can allocate resources on two non-contiguous first resources occupied by the first operator, and the first network device instructs the first terminal device to receive signals using the frequency resource size of the first resource or the frequency resource size of the allocated resource on one first resource on the two first resources for communication, thereby eliminating the strong interference of the second network device on the signal received by the first terminal device.

[0049] In one possible implementation of the second aspect, the two first resources or allocated resources on the two first resources correspond to different antenna ports. In this implementation, because the first network device allocates resources to the first terminal device from the two first resources respectively and instructs the first terminal device to use two narrowband filters to receive signals, the first network device needs to instruct the first terminal device to use different antenna ports when receiving signals on the two first resources or the allocated resources on the two first resources.

[0050] In a possible implementation of the second aspect, the sum of the number of antenna ports corresponding to the two first resources or the allocated resources on the two first resources is less than or less than or equal to the maximum number of antenna ports of the first terminal device. In this implementation, since the first network device allocates resources to the first terminal device in the two first resources respectively, and instructs the first terminal device to use two narrowband filters to receive signals, the maximum number of streams of each signal is limited and the maximum number of streams cannot be reached. Therefore, the first network device can indicate the number of antenna ports for receiving signals to the first terminal device, and the sum of the number of antenna ports corresponding to the two first resources or the allocated resources on the two first resources is less than or less than or equal to the maximum number of antenna ports of the first terminal device.

[0051] In a possible implementation manner of the second aspect, the two first resources or the allocated resources on the two first resources correspond to the same antenna port.

[0052] In a possible implementation of the first aspect, the number of antenna ports corresponding to the two first resources or the allocated resources on the two first resources is less than or equal to half of the maximum number of antenna ports of the first terminal device. In this implementation, since the first network device allocates resources and uses the same port to the first terminal device in the two first resources respectively, and instructs the first terminal device to use two narrowband filters to receive signals, the signals on the two resources carry the same information and the maximum number of signal streams is limited to half of the maximum number of streams. Therefore, the first network device can indicate the number of antenna ports for receiving signals to the first terminal device, and the number of antenna ports corresponding to the two first resources or the allocated resources on the two first resources is the same and is less than or equal to half of the maximum number of antenna ports of the first terminal device.

[0053] In a possible implementation of the second aspect, the method further includes: the first terminal device receives the second indication information sent by the first network device; based on the second indication information, the interference of the second network device on the signal received by the first terminal device is measured and reported, the first network device belongs to the first operator, the second network device belongs to the second operator, the first terminal device communicates on the first operator, the first frequency resources include the frequency resources occupied by the first operator and the frequency resources occupied by the second operator, and the frequency resources occupied by the first operator on the first frequency resources are non-continuous. In this implementation, the first terminal device receives the measurement indication from the first network device to measure and report the interference of other operators on the signal received by the first terminal device, and the first network device determines the first indication information based on the interference measurement result measured and reported by the first terminal device.

[0054] Optionally, the second indication information sent by the first network device to the first terminal device may also include the measurement object of the interference signal and the measurement position of the interference signal, that is, the position in the time domain and / or frequency domain occupied by the interference signal.

[0055] In a third aspect, a communication system is provided, which includes a first network device and a first terminal device, wherein the first network device is used to execute the method in the above first aspect or any possible implementation of the first aspect, and the first terminal device is used to execute the method in the above second aspect or any possible implementation of the second aspect.

[0056] In a fourth aspect, a communication device is provided, which includes a unit for executing each step in the above first aspect or any possible implementation of the first aspect, or a unit for executing each step in the above second aspect or any possible implementation of the second aspect.

[0057] In a fifth aspect, a communication device is provided, which includes at least one processor and a memory, the processor and the memory are coupled, the memory stores program instructions, and when the program instructions stored in the memory are executed by the processor, the method in the above first aspect or any possible implementation of the first aspect, or the method in the above second aspect or any possible implementation of the second aspect is executed.

[0058] In a sixth aspect, a communication device is provided, which includes at least one processor and an interface circuit, and the at least one processor is used to execute the method in the above first aspect or any possible implementation of the first aspect, or the method in the above second aspect or any possible implementation of the second aspect.

[0059] In the seventh aspect, a computer program product is provided, which includes a computer program. When the computer program is executed by a processor, it is used to execute the method in the above first aspect or any possible implementation of the first aspect, or the method in the above second aspect or any possible implementation of the second aspect.

[0060] In an eighth aspect, a computer-readable storage medium is provided, which stores a computer program. When the computer program is executed, it is used to execute the method in the above first aspect or any possible implementation of the first aspect, or the method in the above second aspect or any possible implementation of the second aspect.

[0061] In the ninth aspect, a chip is provided, which includes: a processor for calling and running a computer program from a memory, so that a communication device equipped with the chip executes a method for executing the above first aspect or any possible implementation of the first aspect, or the above second aspect or any possible implementation of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] FIG1 shows a schematic diagram of broadband communication between different operators in the related art.

[0063] FIG2 shows a schematic diagram of a communication system provided in an embodiment of the present application.

[0064] FIG3 shows a schematic structural diagram of a network device 20 and a terminal device 30 provided in an embodiment of the present application.

[0065] FIG4 shows a communication protocol stack structure of a network device 20 and a terminal device 30 provided in an embodiment of the present application.

[0066] FIG5 shows a schematic interaction diagram of an interference elimination method 500 provided in an embodiment of the present application.

[0067] FIG6 shows a schematic diagram of an example of interference measurement and resource usage provided in an embodiment of the present application.

[0068] FIG7 shows a schematic diagram of another example of interference measurement and resource usage provided by an embodiment of the present application.

[0069] FIG8 shows a schematic diagram of another example of interference measurement and resource usage provided by an embodiment of the present application.

[0070] FIG9 shows a schematic block diagram of a communication device 900 provided in an embodiment of the present application.

[0071] FIG10 shows a schematic block diagram of another communication device 1000 provided in an embodiment of the present application.

[0072] FIG11 shows a schematic block diagram of a communication device 1100 provided in an embodiment of the present application.

[0073] FIG12 shows a schematic block diagram of another communication device 1200 provided in an embodiment of the present application.

[0074] FIG13 shows a schematic structural diagram of a terminal device 1300 provided in this application.

[0075] FIG14 shows a schematic structural diagram of a network device 1400 provided in an embodiment of the present application.

[0076] FIG15 shows a schematic diagram of a chip system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0077] The technical solution in this application will be described below with reference to the accompanying drawings.

[0078] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: global system for mobile communications (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, future fifth generation (5G) system or new radio (NR), etc.

[0079] The terminal device in the embodiments of the present application may refer to a user equipment, an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network, or a terminal device in a future evolved public land mobile network (PLMN), etc., and the embodiments of the present application are not limited thereto.

[0080] The network device in the embodiment of the present application can be a device for communicating with a terminal device. The network device can be a base station (base transceiver station, BTS) in a global system for mobile communications (GSM) system or code division multiple access (CDMA), or a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, etc., and the embodiment of the present application is not limited.

[0081] In an embodiment of the present application, a terminal device or a network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also called main memory). The operating system can be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software. In addition, the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided in the embodiment of the present application. As long as it is possible to communicate according to the method provided in the embodiment of the present application by running a program that records the code of the method provided in the embodiment of the present application, for example, the execution subject of the method provided in the embodiment of the present application can be a terminal device or a network device, or a functional module in the terminal device or the network device that can call a program and execute the program.

[0082] In addition, various aspects or features of the present application can be implemented as methods, apparatus, or articles of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" as used in this application covers computer programs that can be accessed from any computer-readable device, carrier, or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes, etc.), optical disks (e.g., compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memories (EPROMs), cards, sticks, or key drives, etc.). In addition, the various storage media described herein may represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0083] Existing communication network architectures are becoming increasingly diverse, often with overlapping coverage of multiple cells within the same area. For example, different operators may deploy their own base stations in the same area, providing services to their respective user devices within that area. Different base stations belong to different operators. In inter-operator broadband communication solutions, operator A's frequency band resources may be distributed on both sides of operator B's frequency band resources. When a terminal device communicating on operator A uses a broadband filter to filter out signals from both frequency bands of operator A, the signal power from operator B's spectrum, which lies between the two frequency bands of operator A, leaks into operator A's spectrum. This means that the broadband filter cannot filter out this interference. Therefore, a terminal device communicating on operator A's frequency band resources may experience interference from communications on operator B's frequency band resources. This, in turn, leads to interference between links between different operators.

[0084] It should be understood that filters are the most commonly used and critical components in mobile communication base stations. Located at the front end of the RF module, they are passive, linear, two-port networks with frequency-selective properties. They filter electromagnetic wave signals, allowing desired frequency signals to pass smoothly while suppressing unwanted frequency signals. Their primary purpose is to resolve interference issues between systems operating in different frequency bands and standards. Filters match signals within their passband but present a significant mismatch for signals outside of the passband, resulting in significant signal reflection attenuation, thereby achieving spectrum filtering. The filter's frequency-selective nature can be used to filter out interfering noise or perform spectrum analysis. In other words, any device or system that allows specific frequencies within a signal to pass while significantly attenuating or suppressing other frequencies is called a filter.

[0085] Among them, filters can be divided into broadband filters and narrowband filters. Broadband filters and narrowband filters are two different types of filters, and their main difference lies in their bandwidth and passband response characteristics. Broadband filters have a wider bandwidth range and can transmit signals within a larger broadband range while adjusting and limiting the amplitude of the in-band signal. It can filter out unwanted frequency components by processing signals with a wide frequency range while transmitting the desired frequency components to the output port. It usually has a flatter passband response and smaller in-band ripple. In contrast, narrowband filters have a narrow bandwidth range and can filter out unwanted frequency components while transmitting the desired frequency components to the output port. It usually has steeper filtering characteristics and smaller out-of-band attenuation, and is suitable for applications that require precise filtering.

[0086] Figure 1 shows a schematic diagram of inter-operator broadband communication in the related art. As shown in Figure 1, when a continuous frequency resource Z is shared by different operators A and B, and operator A's frequency band resources are distributed on both sides of another operator B's frequency band resources, a terminal device communicating on operator A's network, where the frequency resources are non-contiguously distributed, will filter the received signal using a broadband filter that includes the continuous frequency resource Z. Because a transmitted signal from operator B's frequency exists within the filter bandwidth, this interfering signal may cause intermodulation interference or power leakage to operator A's frequency resources due to nonlinear operations in signal reception and processing. As a result, the filtered useful signal on operator A contains interference from signals transmitted by operator B or terminal devices communicating on operator B's network. This interference can significantly degrade the demodulation performance of terminal devices communicating on operator A's network when the power of the signal transmitted by operator B or its terminal devices is high.

[0087] It should be understood that intermodulation interference, also known as intermodulation interference, is caused by the nonlinear effects of the mixer when both the desired signal and the interfering signal act on it. A strong modulated interfering signal and the desired signal (modulated wave or carrier) act on the mixer simultaneously. Through nonlinear effects, the interfering modulated signal is transferred to the carrier frequency of the desired signal, which is then mixed with the local oscillator to produce an intermediate frequency signal, thus causing interference. Intermodulation interference is a phenomenon in which other modulated frequencies enter the interfered frequency due to the third or higher order terms of the transfer function of a nonlinear device. Spectrum signal power leakage refers to the phenomenon in which operator B's signal appears in an unauthorized frequency band or area (operator A's signal).

[0088] For example, as shown in Figure 1, a frequency A on the first resource of two operators A and a frequency B on an operator B may produce the following intermodulation signals: 1st order: A, B; 2nd order: (A+B), (AB); 3rd order (2A±B), (2B±A); 4th order (3A±B), (3B±A), (2A±2B); 5th order (4A±B), (4B±A), (3A±2B), (3B±2A).

[0089] To sum up, when continuous frequency resources are jointly occupied by different operators A and B, and the terminal device in the operator A network uses a broadband filter including the continuous frequency resource Z to filter the received signal, the received signal of the terminal device will be interfered with by the frequency resources of operator B. When the power of the signal sent by operator B is large, the demodulation performance of the terminal device in operator A will be reduced. Therefore, how to eliminate the interference of the signal on the frequency resources of operator B on the received signal of the terminal device on operator A is a problem that needs to be solved at present.

[0090] In view of this, the present application provides a method for interference elimination, which includes: a network device instructs a terminal device to report and measure the interference of a different operator, and the network device adjusts the allocation position of the frequency resources of the terminal device according to the measurement report reported by the terminal device. For example, when the interference of a different operator is large, resources are allocated in a first resource of the terminal device, and the terminal device is instructed to use a narrowband filter to receive signals, thereby avoiding strong interference; or first resources are allocated on both sides of the terminal device, and the terminal device is instructed to use narrowband filters on both sides to receive signals, thereby avoiding strong interference. When the interference of a different operator is small, resources are allocated in two frequency bands of the terminal device, and the terminal device is instructed to use a broadband filter to receive signals. Thereby, the signal reception rate can be improved while avoiding interference from different operators.

[0091] To facilitate understanding of the embodiments of the present application, a communication system applicable to the embodiments of the present application is first introduced in conjunction with Figure 2.

[0092] Figure 2 shows a schematic diagram of an example communication system provided by an embodiment of the present application. As shown in Figure 2, the communication system includes multiple communication devices, for example, network device 210, terminal device 220, terminal device 230, and network device 240, terminal device 250, and terminal device 260. Among them, network device 210 and network device 240 belong to different operators, and network device 210 provides services to terminal devices (terminal device 220 and terminal device 230) within the operator within a specific area; network device 240 provides services to terminal devices (terminal device 250 and terminal device 260) within the operator within a specific area.

[0093] Among them, data communication can be performed between network device 210 and at least one of terminal device 220 and terminal device 230. For example, network device 210 can send first indication information and second indication information to terminal device 220 or terminal device 230 using the interference cancellation method provided in this application. Of course, terminal device 220 or terminal device 230 can also report interference measurement results to network device 210 using the interference cancellation method provided in this application. Network device 240 can perform data communication with at least one of terminal device 250 and terminal device 260. For example, network device 240 can send first indication information and second indication information to terminal device 250 or terminal device 260 using the interference cancellation method provided in this application. Of course, terminal device 250 or terminal device 260 can also report interference measurement results to network device 240 using the interference cancellation method provided in this application.

[0094] It should be understood that the communication system shown in FIG2 may further include more network nodes, such as terminal devices or network devices, and the network devices or terminal devices included in the communication system shown in FIG2 may be the various forms of network devices or terminal devices described above. The embodiments of the present application are not shown one by one in the figures.

[0095] In some embodiments, the network device and the terminal device may also be referred to as a communication device, which may be a general device or a dedicated device, and the embodiments of the present application do not specifically limit this.

[0096] As shown in FIG3 , it is a schematic diagram of the structures of the network device 20 and the terminal device 30 provided in an embodiment of the present application.

[0097] The terminal device 30 includes at least one processor (in FIG. 3 , the exemplary embodiment includes a processor 301 for example) and at least one transceiver (in FIG. 3 , the exemplary embodiment includes a transceiver 303 for example). Furthermore, the terminal device 30 may also include at least one memory (in FIG. 3 , the exemplary embodiment includes a memory 302 for example), at least one output device (in FIG. 3 , the exemplary embodiment includes an output device 304 for example), and at least one input device (in FIG. 3 , the exemplary embodiment includes an input device 305 for example).

[0098] The processor 301, the memory 302 and the transceiver 303 are connected via a communication line. The communication line may include a path for transmitting information between the above components.

[0099] The processor 301 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application. In a specific implementation, as an embodiment, the processor 301 may also include multiple CPUs, and the processor 301 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. The processor here may refer to one or more devices, circuits, or processing cores for processing data (such as computer program instructions).

[0100] The memory 302 may be a device having a storage function. For example, it may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), a magnetic disk storage medium or other magnetic storage device, or 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 302 may exist independently and be connected to the processor 301 via a communication line. The memory 302 may also be integrated with the processor 301.

[0101] The memory 302 is used to store computer-executable instructions for executing the solution of the present application, and the execution is controlled by the processor 301. Specifically, the processor 301 is used to execute the computer-executable instructions stored in the memory 302, thereby implementing the method described in the embodiment of the present application.

[0102] Alternatively, in the present application, the processor 301 may also perform processing-related functions in the signal sending and receiving method provided in the present application, and the transceiver 303 may be responsible for communicating with other devices or communication networks. The embodiments of the present application do not specifically limit this.

[0103] The computer-executable instructions involved in this application may also be referred to as application code or computer program code, which is not specifically limited in the embodiments of this application.

[0104] The transceiver 303 can be any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, radio access networks (RAN), or wireless local area networks (WLAN). The transceiver 303 includes a transmitter (Tx) and a receiver (Rx).

[0105] Output device 304 communicates with processor 301 and can display information in a variety of ways. For example, output device 304 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector.

[0106] The input device 305 communicates with the processor 301 and can accept user input in various ways. For example, the input device 305 can be a mouse, keyboard, touch screen device, or sensor device.

[0107] The network device 20 includes at least one processor (exemplarily illustrated in FIG3 by including a processor 201 as an example) and at least one transceiver (exemplarily illustrated in FIG3 by including a transceiver 203 as an example). Furthermore, the network device 20 may also include at least one memory (exemplarily illustrated in FIG3 by including a memory 202 as an example) and at least one network interface (exemplarily illustrated in FIG3 by including a network interface 204 as an example). Among them, the processor 201, the memory 202, the transceiver 203 and the network interface 204 are connected via a communication line. The network interface 204 is used to connect to the core network device through a link, or to connect to the network interface of other network devices through a wired or wireless link (not shown in FIG3), and this embodiment of the application is not specifically limited to this. In addition, the relevant description of the processor 201, the memory 202 and the transceiver 203 can refer to the description of the processor 301, the memory 302 and the transceiver 303 in the terminal device 30, which will not be repeated here.

[0108] It is understood that the structure shown in FIG3 does not constitute a specific limitation on the terminal device 30 and the network device 20. For example, in other embodiments of the present application, the terminal device 30 and the network device 20 may include more or fewer components than shown, or combine or separate certain components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0109] In addition, Figure 4 shows a communication protocol stack structure of a network device 20 and a terminal device 30 provided in an embodiment of the present application. Referring to Figure 4, the network device 20 and the terminal device 30 may include a radio resource control (RRC) module, a media access control (MAC) module, and a physical (PHY) module.

[0110] The RRC module is used to receive and send RRC signaling. The MAC module is used to receive and send media access control-control element (MAC-CE) signaling. The PHY module is used to receive and send uplink and downlink control signaling, such as the physical downlink control channel (PDCCH) and physical uplink control channel (PUCCH). It is also used to receive and send uplink and downlink data, such as the physical downlink shared channel (PDSCH) and physical uplink shared channel (PUSCH).

[0111] The following will describe the interference elimination method provided in the embodiment of the present application in detail with reference to the accompanying drawings, taking the interaction between the network device 20 shown in FIG3 and any terminal device 30 as an example.

[0112] It should be noted that the name of the message (or information) or the name of the parameter in the message (or information) in the following embodiments of the present application is only an example, and other names may be used in specific implementations. The embodiments of the present application do not specifically limit this.

[0113] It is understood that in the embodiments of the present application, the terminal device and / or the network device may perform some or all of the steps in the embodiments of the present application. These steps are merely examples, and the embodiments of the present application may also perform other steps or variations of various steps. In addition, the various steps may be performed in a different order than those presented in the embodiments of the present application, and it is possible that not all of the steps in the embodiments of the present application need to be performed. As an example and not a limitation, the execution entity of each step in the execution method 500 may also be a chip applied to the terminal device and a chip applied to the network device.

[0114] In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0115] Figure 5 shows a schematic interaction diagram of an interference elimination method 500 provided in an embodiment of the present application. The method can be applied in the scenario shown in Figure 1 or Figure 2 above, and of course can also be applied in other communication scenarios. The embodiment of the present application does not limit this.

[0116] As shown in Fig. 5 , the method 500 shown in Fig. 5 may include S510 to S550. Each step in the method 500 will be described in detail below with reference to Fig. 5 .

[0117] S510. The first network device sends second indication information to the first terminal device, where the second indication information is used to instruct the first terminal device to measure and report interference caused by the second network device to a signal received by the first terminal device.

[0118] In an embodiment of the present application, in order to obtain the degree of interference of a different operator on the first terminal device, the first network device can send a second indication information to the first terminal device, and the second indication information is used to instruct the first terminal device to measure and report the interference of the second network device on the signal received by the first terminal device.

[0119] It should be understood that the first network device and the second network device belong to a first operator and a second operator, respectively. The first network device provides communication services for a first terminal device within a specific area, and the second network device provides communication services for a second terminal device within a specific area. The first frequency resources include frequency resources occupied by the first operator and frequency resources occupied by the second operator, and the frequency resources occupied by the first operator on the first frequency resources are non-contiguous.

[0120] In one possible implementation, the first frequency resource also includes frequency resources occupied by other operators, that is, the operators accessed by the first operator in the non-continuous frequency resources occupied by the first frequency resource may also include a third operator and / or a fourth operator. This embodiment of the present application does not specifically limit this.

[0121] In some embodiments, the second indication information is used to instruct the first terminal device to measure and report the interference of the second network device on the signal received by the first terminal device, and may also include instructing the first terminal device to measure and report the interference of the second terminal device communicating on the second network device on the signal received by the first terminal device, or the interference of other network devices and terminal devices communicating on other network devices on the signal received by the first terminal device. The embodiment of the present application does not specifically limit the source of interference with the signal received by the first terminal device.

[0122] In some possible implementations, the second indication information sent by the first network device to the first terminal device may include the measurement object of the interference signal and the measurement location of the interference signal, that is, the time domain and / or frequency domain location occupied by the interference signal.

[0123] For example, using Figure 1 as an example, the first network device may instruct the first terminal device to measure, on operator B, the interference of operator B on the received signal of the first terminal device communicating on operator A, such as measuring the signal transmission power of operator B. The first network device may also instruct the first terminal device to measure, on operator A, the interference of operator B on the received signal of the first terminal device communicating on operator A, such as measuring the signal leakage power of operator B on operator A. The embodiments of the present application do not specifically limit the measurement object and measurement location of the interference signal.

[0124] In another possible implementation, the second indication information sent by the first network device to the first terminal device may also include: the reporting format of the first terminal device reporting the interference of the second network device on the signal received by the first terminal device and the time-frequency domain resources occupied by the report, etc.

[0125] It should be noted that the second indication information sent by the first network device to the first terminal device can be configured by high-layer or physical layer signaling. High-layer signaling can include, for example, RRC, MAC-CE, RLC signaling, etc. Physical layer signaling can include, for example, DCI, signaling transmitted via a downlink physical channel, etc. The downlink physical channel can be, for example, PDCCH or PDSCH, etc.

[0126] It should also be noted that the second indication information can be sent by the first network device through existing signaling, or can be sent through newly added signaling, and this embodiment of the present application does not specifically limit this.

[0127] S520a. The first terminal device measures the interference of the second network device to the first terminal device based on the second indication information.

[0128] S520b. The first terminal device reports the interference measurement result to the first network device.

[0129] In step S520a and step S520b, after the first terminal device receives the second indication information sent by the first network device, it receives the interference signal at the location indicated by the first network device based on the second indication information and measures the interference. The interference can be characterized by relevant parameters, for example, it can be the reference signal received power (RSRP) of the interference signal, the reference signal received quality (RSRQ) or the received signal strength indication (RSSI), etc. Of course, it can also be other power indicators, and the embodiments of the present application do not make specific limitations on this.

[0130] RSRP is defined as the linear average of the power contributions of resource elements carrying cell-specific reference signals within the measurement bandwidth. RSRQ refers to the signal-to-noise ratio and interference level of the current channel quality.

[0131] S530: The first network device determines, based on the interference measurement result, a degree of interference caused by the second network device to a signal received by the first terminal device.

[0132] In an embodiment of the present application, after the first network device receives the interference measurement result reported by the first terminal device, it can determine the degree of interference caused by the terminal device of the other operator or communicating on the other operator to the reception signal of the first terminal device based on the interference measurement result.

[0133] In some possible implementations, when at least one of the interference signal indicators, such as RSRP, RSRP, and RSSI, is greater than or equal to a first threshold, it indicates that the second network device has a greater degree of interference with the first terminal device.

[0134] In some other possible implementations, when the power indicator of the interference signal, such as at least one of RSRP, RSRP, and RSSI, is less than the first threshold, it indicates that the interference degree of the second network device to the first terminal device is relatively small.

[0135] It should be noted that the first threshold may be predefined by the first network device or predefined by the protocol. The embodiment of the present application does not specifically limit the definition method and value range of the first threshold.

[0136] S540. The first network device sends first indication information to the first terminal device, where the first indication information is used to indicate at least one of the following: resource allocation of the first terminal device on at least one first resource of the first frequency resource, first filter information, or first antenna information.

[0137] It should be noted that the first terminal device occupies multiple first resources on the first frequency resource, and any two first resources are discontinuous.

[0138] It should also be noted that the resources within the first resource may be continuous resources or discontinuous resources, and the embodiments of the present application do not specifically limit this.

[0139] In an embodiment of the present application, after the first network device determines the degree of interference of the second network device on the signal received by the first terminal device based on the interference measurement result reported by the first terminal device, in order to avoid interference of the second network device on the signal received by the first terminal device, the first network device can adjust the resource allocation of the first terminal device on at least one first resource on the first frequency resource, and indicate the first filter information used by the first terminal device when receiving the signal on the at least one first resource, and indicate the first antenna information when the first terminal device receives the signal on the first resource.

[0140] In some embodiments, the first filter information includes one or more filter bandwidths, and the one or more filter bandwidths include a frequency resource size of the at least one first resource or a frequency resource size of an allocated resource on the at least one first resource.

[0141] Specifically, the first filter information can be used to instruct the first terminal device to receive signals using one filter bandwidth, or to instruct the first terminal device to receive signals using multiple filter bandwidths. The one filter bandwidth can be the frequency resource size of one first resource, the one filter bandwidth can also be the frequency size of multiple first resources, or the one filter bandwidth can be the frequency resource size of an allocated resource on one first resource, or the first filter bandwidth can also be the frequency resource size of allocated resources on multiple first resources.

[0142] In a possible implementation manner, a first correlation exists between one or more filter bandwidths and a frequency resource size of the first resource or a frequency resource size of an allocated resource on the first resource.

[0143] The first association relationship is used to indicate that when the filter corresponding to the filter bandwidth allocated by the first network device to the first terminal device is used on the corresponding first resource, the frequency center of the filter is consistent with the frequency center of the first resource, or the first association relationship indicates that when the filter corresponding to the filter bandwidth allocated by the first network device to the first terminal device is used on the allocated resource of the corresponding first resource, the frequency center of the filter is consistent with the frequency center of the allocated resource of the first resource.

[0144] It should be understood that when the bandwidth of the filter includes two first resources, the center of the filter is aligned with the center of the frequency resource including the two first resources, or, when the bandwidth of the filter includes two first resources, the center of the filter is aligned with the frequency center of the allocated resource including the two first resources; when the bandwidth of the filter includes multiple first resources, the center of the filter is aligned with the center of the frequency resource including multiple first resources, or, when the bandwidth of the filter includes two first resources, the center of the filter is aligned with the frequency center of the allocated resource including multiple first resources.

[0145] In one possible implementation, when the interference signal greatly interferes with the signal received by the first terminal device, the first filter signal may include a filter bandwidth, and the filter bandwidth is the frequency resource size of a first resource or the frequency resource size of an allocated resource on a first resource. Alternatively, when the interference signal greatly interferes with the signal received by the first terminal device, the first filter signal may include multiple filter bandwidths, and the first association relationship between a filter bandwidth and the frequency resource size of the first resource is: each first filter bandwidth is the frequency resource size of a first resource or the frequency resource size of an allocated resource on a first resource. That is, when the first terminal device receives a signal using one or more narrowband filters, interference of the interference signal on the received signal can be avoided.

[0146] Exemplarily, FIG6 shows a schematic diagram of an interference measurement and resource usage provided by an embodiment of the present application, as shown in FIG6 (a), assuming that the frequency bandwidth of the first frequency resource Z is 100 Hz. The frequency bandwidth of 100 Hz is jointly occupied by the first operator and the second operator, and the first operator occupies two non-contiguous first resources on the first frequency resource. For example, the frequency resources of the first operator occupy 0-30 Hz and 70-100 Hz, and the second operator occupies 30-70 Hz. When the first network device determines that the second network device has a greater degree of interference with the signal received by the first terminal device, the first network device may allocate resources to one of the two first resources of the first terminal device, and the filter bandwidth indicated to the first terminal device by the first network device may be one, and the one filter bandwidth is the size of the frequency resource of one first resource, or the one filter bandwidth is the size of the frequency resource of the allocated resource of one first resource.

[0147] Specifically, the first network device allocates resources to the first terminal device within the 0-30 Hz frequency band occupied by the first operator, or the first network device allocates resources to the first terminal device within the 70-100 Hz frequency band of the first operator, and the first network device instructs the first terminal device to use a narrowband filter to receive signals within the 0-30 Hz frequency band or the 70-100 Hz frequency band.

[0148] It should be noted that the above-mentioned frequency bands are for illustration only and do not constitute a limitation to the solution. The first terminal device may also occupy other frequency bands on the first operator, and the frequency bands occupied by the first terminal device on the first operator may be the same or different.

[0149] It should be noted that, in this manner, the first terminal device receives signals using a narrowband filter, and thus can filter out interference signals, thereby avoiding strong interference of other operators on the signals received by the first terminal device.

[0150] Alternatively, when the first operator occupies two non-contiguous first resources on the first frequency resource, and when the first network device determines that the second network device interferes with the reception of signals by the first terminal device to a large extent, the first network device may also allocate resources to the two first resources of the first terminal device respectively. The filter bandwidth indicated by the first network device to the first terminal device may be two, and the bandwidth of each filter may be the size of the frequency resource of one first resource, or the bandwidth of each filter may be the size of the frequency resource of the allocated resource of one first resource, or the first network device may indicate to the first terminal device that the filter bandwidth is one, and it is predefined that the first terminal device uses two filters with a bandwidth equal to the indicated bandwidth to receive signals on the two first resources respectively.

[0151] Specifically, the first network device allocates resources to the first terminal device in the 0-30 Hz and 70-100 Hz frequency bands occupied by the first operator, and the first network device instructs the first terminal device to use two narrowband filters to receive signals in the 0-30 Hz and 70-100 Hz frequency bands respectively.

[0152] It should be noted that in this approach, because the first network device allocates resources to the first terminal device in two frequency bands, the first filter information includes two filter bandwidths. The first terminal device uses the two filter bandwidths to receive signals in different frequency bands. Because both frequency bands receive signals using narrowband filters, interference signals from the second network device can be filtered out, thereby preventing the second network device from significantly interfering with the first terminal device's received signals.

[0153] In other embodiments, when the interference signal has little interference with the received signal of the first terminal device, the first filter signal may include a filter bandwidth, and the filter bandwidth is the frequency resource size of multiple first resources or the frequency resource size of allocated resources on multiple first resources.

[0154] For example, as shown in Figure 6 (b), when the first operator occupies two non-contiguous first resources on the first frequency resource and the second network device interferes less with the signal received by the first terminal device, the first network device can allocate resources to the two first resources of the first terminal device, and the first filter information indicated to the first terminal device includes a filter bandwidth, which includes the frequency resource size of multiple first resources.

[0155] Specifically, the first network device allocates resources to the first terminal device within the 0-30 Hz and 70-100 Hz frequency bands occupied by the first operator, and instructs the first terminal device to use a wideband filter to receive signals within the 0-100 Hz frequency band. In this implementation, the first terminal device utilizes the large bandwidth to fully improve the transmission rate.

[0156] It should be understood that in the example of FIG6 , the first operator 1 and the first operator 2 are the same operator.

[0157] For another example, FIG7 shows a schematic diagram of another example of interference measurement and resource usage provided by an embodiment of the present application. As shown in FIG7 (a), the first frequency resource includes four resources, wherein the first operator 1 and the second operator 1 have weak interference, the second operator 1 and the first operator 2 have strong interference, and the first operator 2 and the second operator 2 have weak interference. Then the first network device indicates to the first terminal device a filter bandwidth of two, which are respectively the sum of the size of the frequency resources occupied by the first operator 1 and the size of the frequency resources occupied by the second operator 1, and the sum of the size of the frequency resources occupied by the first operator 2 and the size of the frequency resources occupied by the second operator 2. Alternatively, the first network device indicates to the first terminal device a filter bandwidth of one, and predefines that the first bandwidth can receive signals on two frequency bands, that is, the first network device indicates a bandwidth of the size of the frequency resources occupied by the first operator 1 and the size of the frequency resources occupied by the second operator 1, and predefines that the bandwidth can also receive signals on the first operator 2 and the second operator 2.

[0158] As shown in Figure 7 (b), the first frequency resource includes 4 resources, among which there is strong interference between the first operator 1 and the second operator 1, weak interference between the second operator 1 and the first operator 2, and weak interference between the first operator 2 and the second operator 2. Then the filter bandwidth indicated by the first network device to the first terminal device can be two, and the two filter bandwidths are the size of the frequency resources occupied by the first operator 1, and the sum of the size of the frequency resources occupied by the second operator 1, the size of the frequency resources occupied by the first operator 2, and the size of the frequency resources occupied by the second operator 2.

[0159] As shown in Figure 7 (c), the first frequency resource includes 4 resources, among which there is strong interference between the first operator 1 and the second operator 1, weak interference between the second operator 1 and the first operator 2, and strong interference between the first operator 2 and the second operator 2. Then the filter bandwidth indicated by the first network device to the first terminal device can be three, and the three filter bandwidths are respectively the size of the frequency resources occupied by the first operator 1, the sum of the size of the frequency resources occupied by the second operator 1 and the size of the frequency resources occupied by the first operator 2, and the size of the frequency resources occupied by the second operator 2.

[0160] As shown in Figure 7 (d), the first frequency resource includes four resources, where there is strong interference between the first operator 1 and the second operator 1, strong interference between the second operator 1 and the first operator 2, and strong interference between the first operator 2 and the second operator 2. In this case, the first network device may indicate four filter bandwidths to the first terminal device, and the four filter bandwidths are all the sizes of the frequency resources occupied by the first operator 1. Alternatively, the first network device may indicate one filter bandwidth to the first terminal device, and the one filter bandwidth is predefined to receive signals on other frequency bands.

[0161] It should be understood that in the example of FIG7 , first operator 1 and first operator 2 are the same operator. Second operator 1 and second operator 2 may be different operators. For example, second operator 1 may also be the third operator, and second operator 2 may also be the fourth operator. This embodiment of the present application does not specifically limit this.

[0162] For another example, Figure 8 shows a schematic diagram of another example of interference measurement and resource usage provided by an embodiment of the present application. As shown in Figure 8 (a), when the second operator 1 is a strong interference to at least one of the first operator 1 and the first operator 2, or the signal transmission power of the second operator 1 is large, the first resource 1 of the first operator 1 and the first resource 2 of the first operator 2 use filters 1 and 2 to receive signals respectively; when the second operator 2 is a weak interference to the first operator 2 and the first operator 3, the first operator 2 and the first operator 3 can use the same filter to receive signals, so the first resource 2 of the first operator 2 and the first resource 3 of the first operator 3 use filter 2 to receive signals; when the second operator 3 is a strong interference to at least one of the first operator 3 and the first operator 4, or the signal transmission power of the second operator 3 is large, the first resource 3 of the first operator 3 and the first resource 4 of the first operator 4 use different filters to receive signals, that is, when the first resource 3 of the first operator 3 and the first resource 2 of the first operator 2 use filter 2 to receive signals, the first operator 4 uses filter 3 to receive signals.

[0163] In addition, the first network device instructs the first terminal device to use the first bandwidth (the frequency resource size of the first resource) to receive signals on the first resource 1 of the first operator 1, to use the second bandwidth (the sum of the frequency resource sizes occupied by the first operator 2, the second operator 2 and the first operator 3) to receive signals on the first resource 2 of the first operator 2 and the first resource 3 of the first operator 3, and to use the first bandwidth to receive signals on the first resource 4 of the first operator 4 (the frequency resource size of the first resource); or, the first network device instructs the first terminal device to use the first bandwidth (the frequency resource size of the first resource) to receive signals on the first resource 1 of the first operator 1 and the first resource 4 of the first operator 4, and to use the second bandwidth to receive signals on the first resource 2 of the first operator 2 and the first resource 3 of the first operator 3.

[0164] As shown in Figure 8 (b), when the second operator 1 is a strong interference to at least one of the first operator 1 and the first operator 2, or the signal transmission power of the second operator 1 is large, the first resource 1 of the first operator 1 and the first resource 2 of the first operator 2 use filters 1 and filter 2 respectively to receive signals. When the second operator 2 is a weak interference to the first operator 2 and the first operator 3, the first resource 2 of the first operator 2 and the first resource 3 of the first operator 3 can use the same filter to receive signals. The second operator 3 is a weak interference to the first operator 3 and the first operator 4, the first resource 3 of the first operator 3 and the first resource 4 of the first operator 4 can use the same filter to receive signals. Therefore, the first resource 2 of the first operator 2, the first resource 3 of the first operator 3 and the first resource 4 of the first operator 4 can use filter 2 to receive signals.

[0165] In addition, the first network device respectively instructs the first terminal device to use the first bandwidth (the frequency resource size of the first resource) to receive signals on the first resource 1 of the first operator 1, and to use the third bandwidth (the sum of the frequency resource sizes occupied by the first operator 2, the second operator 2, the first operator 3, the second operator 3 and the first operator 4) to receive signals on the first resource 2 of the first operator 2, the first resource 3 of the first operator 3 and the first resource 4 of the first operator 4.

[0166] As shown in Figure 8 (c), when the second operator 1 is a strong interference to at least one of the first operator 1 and the first operator 2, or the signal transmission power of the second operator 1 is large, the first resource 1 of the first operator 1 and the first resource 2 of the first operator 2 use filters 1 and filter 2 respectively to receive signals; when the second operator 2 is a strong interference to at least one of the first operator 2 and the first operator 3, or the signal transmission power of the second operator 2 is large, the first resource 2 of the first operator 2 and the first resource 3 of the first operator 3 use filters 2 and filter 3 respectively to receive signals; when the second operator 3 is a strong interference to at least one of the first operator 3 and the first operator 4, or the signal transmission power of the second operator 3 is large, the first resource 3 of the first operator 3 and the first resource 4 of the first operator 4 use filters 3 and filter 4 respectively to receive signals.

[0167] In addition, the first network device instructs the first terminal device to use the first bandwidth (frequency resource size of the first resource) to receive signals on the first resource 1 of the first operator 1, to use the first bandwidth (frequency resource size of the first resource) to receive signals on the first resource 2 of the first operator 2, to use the first bandwidth (frequency resource size of the first resource) to receive signals on the first resource 3 of the first operator 3, and to use the first bandwidth (frequency resource size of the first resource) to receive signals on the first resource 4 of the first operator 4; or, the first network device instructs the first terminal device to use the first bandwidth (frequency resource size of the first resource) to receive signals on the first resource 1 of the first operator 1, the first resource 2 of the first operator 2, the first resource 3 of the first operator 3, and the first resource 4 of the first operator 4, respectively.

[0168] As shown in Figure 8 (d), when the second operator 1 is a weak interference to the first operator 1 and the first operator 2, the first resource 1 of the first operator 1 and the first resource 2 of the first operator 2 can use the same filter to receive signals; the second operator 2 is a weak interference to the first operator 2 and the first operator 3, the first resource 2 of the first operator 2 and the first resource 3 of the first operator 3 can use the same filter to receive signals; when the second operator 3 is a weak interference to the first operator 3 and the first operator 4, the first resource 3 of the first operator 3 and the first resource 4 of the first operator 4 can use the same filter to receive signals. Then, the first resource 1 of the first operator 1, the first resource 2 of the first operator 2, the first resource 3 of the first operator 3 and the first resource 4 of the first operator 4 can use the same filter to receive signals.

[0169] In addition, the first network device instructs the first terminal device to use the fourth bandwidth (the sum of the frequency resources occupied by the first operator 1, the second operator 1, the first operator 2, the second operator 2, the first operator 3, the second operator 3 and the first operator 4 respectively) to receive signals on the first resource 1 of the first operator 1, the first resource 2 of the first operator 2, the first resource 3 of the first operator 3 and the first resource 4 of the first operator 4.

[0170] As shown in Figure (e) in Figure 8, when the second operator 1 is a weak interference to the first operator 1 and the first operator 2, the first resource 1 of the first operator 1 and the first resource 2 of the first operator 2 can use the same filter 1 to receive signals, and the second operator 2 is a strong interference to at least one of the first operator 2 and the first operator 3, or the signal transmission power of the second operator 2 is large, the first resource 2 of the first operator 2 and the first resource 3 of the first operator 3 use filter 1 and filter 2 respectively to receive signals; when the second operator 3 is a weak interference to the first operator 3 and the first operator 4, the first resource 3 of the first operator 3 and the first resource 4 of the first operator 4 can use the same filter 2 to receive signals.

[0171] In addition, the first network device instructs the first terminal device to use the fifth bandwidth (the sum of the frequency resources occupied by the first operator 1, the second operator 1, and the first operator 2 respectively) to receive signals on the first resource 1 of the first operator 1 and the first resource 2 of the first operator 2; the first network device instructs the first terminal device to use the sixth bandwidth (the sum of the frequency resources occupied by the first operator 3, the second operator 3, and the first operator 4 respectively) to receive signals on the first resource 3 of the first operator 3 and the first resource 4 of the first operator 4.

[0172] As shown in Figure (f) in Figure 8, when the second operator 1 is a strong interference to at least one of the first operator 1 and the first operator 2, or the signal transmission power of the second operator 1 is large, the first resource 1 of the first operator 1 and the first resource 2 of the first operator 2 use filters 1 and filter 2 respectively to receive signals; when the second operator 2 is a strong interference to at least one of the first operator 2 and the first operator 3, or the signal transmission power of the second operator 2 is large, the first resource 2 of the first operator 2 and the first resource 3 of the first operator 3 use filters 2 and filter 3 respectively to receive signals; when the second operator 3 is a weak interference to the first operator 3 and the first operator 4, the first resource 3 of the first operator 3 and the first resource 4 of the first operator 4 can use the same filter 3 to receive signals.

[0173] Furthermore, the first network device instructs the first terminal device to receive signals on the first resource 1 of the first operator 1 using the first bandwidth (the frequency resource size of the first resource), to receive signals on the first resource 2 of the first operator 2 using the first bandwidth (the frequency resource size of the first resource), and to receive signals on the first resource 3 of the first operator 3 and the first resource 4 of the first operator 4 using the sixth bandwidth (the sum of the frequency resource sizes occupied by the first operator 3, the second operator 3, and the first operator 4, respectively). Alternatively, the first network device instructs the first terminal device to receive signals on the first resource 1 of the first operator 1 and the first resource 2 of the first operator 2, respectively, using the first bandwidth (the frequency resource size of the first resource), and to receive signals on the first resource 3 of the first operator 3 and the first resource of the first operator 4, respectively, using the sixth bandwidth.

[0174] As shown in Figure (g) in Figure 8, when the second operator 1 is a weak interference to the first operator 1 and the first operator 2, the first resource 1 of the first operator 1 and the first resource 2 of the first operator 2 can use the same filter to receive signals. The second operator 2 is a weak interference to the first operator 2 and the first operator 3. The first resource 2 of the first operator 2 and the first resource 3 of the first operator 3 can use the same filter 1 to receive signals, that is, the first resource 1 of the first operator 1, the first resource 2 of the first operator 2, and the first resource 3 of the first operator 3 can use the same filter 1 to receive signals. When the second operator 3 is a strong interference to at least one of the first operator 3 and the first operator 4, or the signal transmission power of the second operator 3 is large, the first resource 3 of the first operator 3 and the first resource 4 of the first operator 4 use filter 1 and filter 2 respectively to receive signals.

[0175] Furthermore, the first network device instructs the first terminal device to use the seventh bandwidth (the sum of the frequency resource sizes occupied by the first operator 1, the second operator 1, the first operator 2, the second operator 2, and the first operator 3, respectively) to receive signals on the first resource 1 of the first operator 1, the first resource 2 of the first operator 2, and the first resource 3 of the first operator 3. The first network device instructs the first terminal device to use the first bandwidth (the frequency resource size of the first resource) to receive signals on the first resource 4 of the first operator 4.

[0176] As shown in Figure (h) in Figure 8, when the second operator 1 is a weak interference to the first operator 1 and the first operator 2, the first resource 1 of the first operator 1 and the first resource 2 of the first operator 2 can use the same filter 1 to receive signals; when the second operator 2 is a strong interference to at least one of the first operator 2 and the first operator 3, or the signal transmission power of the second operator 2 is large, the first resource 2 of the first operator 2 and the first resource 3 of the first operator 3 use filter 1 and filter 2 respectively to receive signals; when the second operator 3 is a strong interference to at least one of the first operator 3 and the first operator 4, or the signal transmission power of the second operator 3 is large, the first resource 3 of the first operator 3 and the first resource 4 of the first operator 4 use filter 2 and filter 3 respectively to receive signals.

[0177] Furthermore, the first network device instructs the first terminal device to use the fifth bandwidth (the sum of the frequency resource sizes occupied by the first operator 1, the second operator 1, and the first operator 2, respectively) to receive signals on the first resource 1 of the first operator 1 and the first resource 2 of the first operator 2, to use the first bandwidth (the frequency resource size of the first resource) to receive signals on the first resource 3 of the first operator 3, and to use the first bandwidth (the frequency resource size of the first resource) to receive signals on the first resource 4 of the first operator 4. Alternatively, the first network device instructs the first terminal device to use the first bandwidth (the frequency resource size of the first resource) to receive signals on the first resource 3 of the first operator 3 and the first resource 4 of the first operator 4, respectively, and to use the fifth bandwidth to receive signals on the first resource 1 of the first operator 1 and the first resource 2 of the first operator 2.

[0178] It should be understood that in the example of FIG8 , first operator 1, first operator 2, first operator 3, and first operator 4 are the same operator. Second operator 1, second operator 2, and second operator 3 may be different operators. For example, second operator 2 may also be the third operator, and second operator 3 may also be the fourth operator. This embodiment of the present application does not specifically limit this.

[0179] To summarize, when there are N first resources on the first frequency resource (there are N-1 interference sources or different operators), the first terminal device can report the interference measurement results (the interference of the N-1 interference sources on the adjacent first resources) to the first network device. The first network device determines the intensity of the N-1 interferences or the degree of interference of the N resources based on the interference measurement results. When M of the N-1 interference degrees are strong interferences, the first network device indicates the resource allocation on the N first resources to the first terminal device based on the frequency resource position occupied by the strong interference. When there is strong interference between two allocated resources, different filters need to be used to receive signals between the two allocated resources. When there is no strong interference between the two allocated resources, the two allocated resources can use the same filter when receiving signals. If the first network device allocates resources to the first terminal device on all N first resources, then the first network device needs to indicate M+1 filter bandwidths to the first terminal device. When the first terminal device receives signals based on the M+1 filter bandwidths, it can filter out interference from other network devices on the signals received by the first terminal device.

[0180] In the above example, the first indication information sent by the first network device to the first terminal device can be configured by high-layer or physical layer signaling. High-layer signaling may include, for example, RRC, MAC-CE, RLC signaling, etc. Physical layer signaling may include, for example, DCI, signaling transmitted through a downlink physical channel, etc. The downlink physical channel may be, for example, PDCCH or PDSCH, etc. In order to reduce signaling overhead, in some other embodiments, the resource allocation situation of the first network device to the first terminal device may also be predefined by the protocol. The embodiment of the present application does not specifically limit how the first terminal device obtains the resource allocation situation.

[0181] Based on the above steps S510-S540, the first network device can instruct the first terminal device to measure and report the degree of interference of the second network device on the first terminal device. The first network device determines the resource allocation of the first terminal device according to the degree of interference and instructs the first terminal device to use a broadband filter or a narrowband filter to receive the signal, thereby avoiding interference of the second network device on the first terminal device when the first terminal device receives the signal.

[0182] In other embodiments of the present application, the first network device may further instruct the first terminal device, based on the resource allocation status of the first terminal device and the usage of the wide and narrow filters, on multi-antenna-related information for allocating resources within different frequency bands. That is, the first indication information sent by the first network device to the first terminal device may also include first antenna information. This first antenna information is applied to at least one first resource or at least one allocated resource of the first resource. This implementation can further improve the signal reception performance of the first terminal device.

[0183] In one possible implementation, the first antenna information includes an antenna port, precoding information, a transmission configuration indication (TCI), a sounding reference signal (SRS), and a demodulation reference signal (DMRS) sequence initialization information. Of course, the first antenna related information may also include other related information, which is not specifically limited in this embodiment of the present application.

[0184] It should be noted that the number of the first antenna information includes one or more.

[0185] It should be understood that the antenna port information indicates the antenna port used for data transmission and the antenna port used by other terminals. In the relevant technology, all resources indicated by a DCI use the same antenna port; the precoding information indicates the precoding matrix used by the network device when sending data to the terminal device. The TCI indicates which reference signal (such as SSB signal and CSI-RS signal) beam configured by the base station is the same as the downlink data beam (indicating the downlink beam). In the relevant technology, all resources indicated by a DCI use the same TCI; the SRS request indicates a sounding reference signal transmission request. If the UE is instructed to use the SRS, the base station can directly obtain uplink channel information by receiving the SRS. In the relevant technology, one DCI indicates one SRS transmission; the DMRS sequence initialization information is used to select two pre-configured DMRS sequence initial values.

[0186] In an embodiment of the present application, the first network device indicates the resource allocation on both sides to the first terminal device through DCI and uses two narrowband filters to receive signals. Then, the first network device needs to indicate the antenna ports used for data transmission on the resources on both sides and the antenna ports used by other terminals through a DCI, and the first network device needs to indicate the TCI on the resources on both sides through a DCI, and the first network device needs to indicate the SRS transmission and DMRS sequence initialization information on the resources on both sides through a DCI.

[0187] Optionally, there is a second association relationship between the one or more first antenna information and the first resource or allocated resources on the first resource.

[0188] For example, as shown in Figure 6 (a), when the first network device instructs the first terminal device to use a filter with a bandwidth size equal to the frequency resource size of the first resource to receive a signal, the first network device indicates a first antenna information to the first terminal device. Alternatively, when the first network device instructs the first terminal device to use two filters with a bandwidth size equal to the frequency resource size of the first resource to receive a signal, the first network device indicates two first antenna information to the first terminal device. As shown in Figure 6 (b), when the first network device instructs the first terminal device to use a filter with a bandwidth size equal to the sum of the frequency resource sizes occupied by the first operator 1, the second operator 1, and the first operator 2 respectively to receive a signal, the first network device indicates a first antenna information to the first terminal device.

[0189] For another example, as shown in Figure 7 (a), when the first network device instructs the first terminal device to use two filters whose bandwidths are the sum of the frequency resource sizes occupied by the first operator 1 and the second operator 1, and the filter whose bandwidths are the sum of the frequency resource sizes occupied by the first operator 2 and the second operator 2 to receive signals, the first network device indicates two first antenna information to the first terminal device; as shown in Figure 7 (b), when the first network device instructs the first terminal device to use a filter with a bandwidth size of the frequency resource size of the first resource and a filter with a bandwidth size of the sum of the frequency resource sizes occupied by the second operator 1, the first operator 2 and the second operator 2 to receive signals signal, the first network device indicates two first antenna information to the first terminal device; as shown in Figure 7 (c), when the first network device instructs the first terminal device to use two filters with a bandwidth size equal to the frequency resource size of the first resource and one filter with a bandwidth size equal to the sum of the frequency resource sizes occupied by the second operator 1 and the first operator 2 to receive the signal, the first network device indicates three first antenna information to the first terminal device; as shown in Figure 7 (d), when the first network device instructs the first terminal device to use four filters with a bandwidth size equal to the frequency resource size of the first resource to receive the signal, the first network device indicates four first antenna information to the first terminal device.

[0190] For another example, as shown in Figure 8 (a), when the first network device instructs the first terminal device to use two first bandwidth filters to receive signals and use one second bandwidth filter to receive signals, the first network device can indicate three first antenna information to the first terminal device, two first bandwidth filters and one second bandwidth filter respectively use one first antenna information; or the first network device can also indicate two first antenna signals to the first terminal device, two first bandwidth filters use one first antenna information, and one second bandwidth filter uses one first antenna information.

[0191] As shown in Figure 8 (b), when the first network device instructs the first terminal device to use a first bandwidth filter and a third bandwidth filter to receive signals respectively, the first network device can indicate two first antenna information to the first terminal device, that is, a first bandwidth filter and a third bandwidth filter use one first antenna information respectively.

[0192] As shown in Figure (c) in Figure 8, when the first network device instructs the first terminal device to use four first bandwidth filters to receive signals respectively, the first network device can indicate four first antenna information to the first terminal device, that is, the four first bandwidth filters use one first antenna information respectively; or, the first network device can also indicate one first antenna information to the first terminal device, that is, the four first bandwidth filters use one first antenna information.

[0193] As shown in FIG8( d ), when the first network device instructs the first terminal device to use a filter with a fourth bandwidth to receive signals, the first network device may indicate first antenna information to the first terminal device.

[0194] As shown in Figure (e) in Figure 8, when the first network device instructs the first terminal device to use a filter with a fifth bandwidth and a filter with a sixth bandwidth to receive signals, the first network device can indicate two first antenna information to the first terminal device, that is, the filter with the fifth bandwidth and the filter with the sixth bandwidth respectively use one first antenna information to receive signals.

[0195] As shown in Figure (f) in Figure 8, when the first network device instructs the first terminal device to use two filters of the first bandwidth and one filter of the sixth bandwidth to receive signals, the first network device can indicate three first antenna information to the first terminal device, that is, two filters of the first bandwidth and one filter of the sixth bandwidth respectively use one first antenna information to receive signals; or, the first network device indicates two first antenna information to the first terminal device, that is, two filters of the first bandwidth use one first antenna information and one filter of the sixth bandwidth uses one first antenna information.

[0196] As shown in Figure (g) in Figure 8, when the first network device instructs the first terminal device to use a filter with the seventh bandwidth and a filter with the first bandwidth to receive signals, the first network device can indicate two first antenna information to the first terminal device, that is, a filter with the seventh bandwidth and a filter with the first bandwidth respectively use one first antenna information to receive signals.

[0197] As shown in FIG8(h), when the first network device instructs the first terminal device to use one filter with the fifth bandwidth and two filters with the first bandwidth to receive signals, the first network device may indicate three pieces of first antenna information to the first terminal device, i.e., one filter with the fifth bandwidth and two filters with the first bandwidth each use one piece of first antenna information to receive signals. Alternatively, the first network device may indicate two pieces of first antenna information to the first terminal device, i.e., one filter with the fifth bandwidth uses one piece of first antenna information and two filters with the first bandwidth use one piece of first antenna information.

[0198] With reference to the example shown in Figure 6 (a), in one possible implementation of the present application, when the first network device allocates resources to the first terminal device within one of the two first resources and instructs the first terminal device to use a narrowband filter to receive signals, the first terminal device can use all antennas to receive signals. For example, if the first terminal device includes 12 antennas, and each of three antennas forms an antenna port, then four antenna ports can be used to receive signals.

[0199] In combination with the example shown in Figure (b) in Figure 6, in another possible implementation method of the present application, when the first network device allocates resources to the first terminal device in two first resources respectively, and instructs the first terminal device to use two narrowband filters to receive signals, the first network device indicates to the first terminal device that the allocated resources on the two first resources or the two first resources correspond to different antenna ports, and the sum of the number of antenna ports corresponding to the two first resources or the allocated resources on the two first resources is less than or less than or equal to the maximum number of antenna ports of the first device.

[0200] For example, the first terminal device includes 12 antennas, and every 3 antennas form an antenna port, including a total of 4 antenna ports. When receiving signals on two first resources respectively, the sum of the number of antenna ports of the two first resources is less than or equal to 4, for example, using port 1 to receive the signal on one first resource, and using port 2 to receive the signal on the other first resource; or using port 1 to receive the signal on one first resource, and using port 2 and port 3 to receive the signal on the other first resource; or using port 1 to receive the signal on one first resource, and using port 2, port 3 and port 4 to receive the signal on the other first resource. The embodiment of the present application does not specifically limit the allocation method of antenna ports.

[0201] It should be noted that since the first network device allocates resources to the first terminal device from each of the two first resources and instructs the first terminal device to use two narrowband filters to receive signals, the maximum number of streams for each signal is limited and cannot be reached. Therefore, the first network device can indicate to the first terminal device the number of antenna ports for receiving signals. It should be understood that the maximum number of streams is equal to the number of antenna ports. The number of antenna ports is a logical concept and is less than or equal to the number of physical antennas. That is, one antenna port can be composed of multiple antennas.

[0202] Alternatively, when the first network device allocates resources to the first terminal device from each of the two first resources and instructs the first terminal device to use a wideband filter to receive signals, the first network device may instruct the first terminal device to use all antennas to receive signals, thereby improving signal transmission efficiency. For example, when the first terminal device includes 12 antennas, with each 3 antennas forming an antenna port, 4 antenna ports may be used to receive signals.

[0203] In the above implementation, the first network device indicates the first filter information and the first antenna information of the first terminal device by means of signaling. In order to reduce signaling overhead, in other embodiments, the first terminal device may obtain the first filter information and the first antenna information, etc., by means of a protocol predefined method. For example, the association relationship between the resource allocation situation and the first filter information and the first antenna information may be predefined, so that when the first terminal device obtains the resource allocation situation, the first filter information and the first antenna information can be obtained. Exemplarily, the association relationship may include the following:

[0204] 1. Single-sided resource allocation uses a narrowband filter, while double-sided resource allocation uses a wideband filter.

[0205] 2. Unilateral resource allocation uses narrowband filters, while bilateral resource allocation uses narrowband filters. Antenna ports are evenly distributed, and both sides use the same multi-antenna related information.

[0206] 3. Single-sided resource allocation uses narrowband filters, bilateral resource allocation uses narrowband filters, antenna ports are evenly divided, and new signaling is added to indicate other multi-antenna related information.

[0207] 4. Single-sided resource allocation uses a narrowband filter, and bilateral resource allocation uses a narrowband filter. New signaling is added to indicate multi-antenna related information.

[0208] Specifically, when the resource allocation situation obtained by the first terminal device is unilateral resource allocation, a narrowband filter is used to receive signals on one first resource, or when the resource allocation situation obtained by the first terminal device is bilateral resource allocation, a broadband filter is used to receive signals on two first resources; or when the resource allocation situation obtained by the first terminal device is bilateral resource allocation, two narrowband filters are used to receive signals on two first resources respectively, and the first antenna information is multiplexed on both sides; or when the resource allocation situation obtained by the first terminal device is bilateral resource allocation, two narrowband filters are used to receive signals on two first resources respectively, and the first network device sends signaling to the two first resources respectively to indicate the first antenna information.

[0209] Alternatively, to reduce signaling overhead, in other embodiments, the first terminal device may obtain the first filter information and the first antenna information through a predefined table. Each row in the table corresponds to an association relationship, and the newly added signaling uses a bit to indicate which predefined relationship to use.

[0210] For example, the association relationship may include the following:

[0211] 1. Single-sided resource allocation uses a narrowband filter, while double-sided resource allocation uses a wideband filter.

[0212] 2. Unilateral resource allocation uses a narrowband filter; bilateral resource allocation uses a narrowband filter, and both sides use the same multi-antenna related information.

[0213] 3. Unilateral resource allocation uses narrowband filters; bilateral resource allocation uses narrowband filters. Antenna ports are evenly divided (by sequence number, for example, ports 1-2 are allocated to the left side, and ports 3-4 are allocated to the right side). Both sides use the same other multi-antenna related information.

[0214] 4. Single-sided resource allocation uses narrowband filters, bilateral resource allocation uses narrowband filters, antenna ports are evenly divided, and new signaling is added to indicate other multi-antenna related information.

[0215] 5. Single-sided resource allocation uses a narrowband filter, and bilateral resource allocation uses a narrowband filter. New signaling is added to indicate multi-antenna related information.

[0216] S550. The first terminal device determines at least one of the following based on the first indication information: resource allocation information on at least one first resource of the first frequency resource, first filter information for receiving a signal on at least one first resource, or first antenna information for receiving a signal on at least one first resource.

[0217] In step S550, the first terminal device may determine, based on the first indication information of the first terminal device, resource allocation information for at least one first resource of the first frequency resource, and / or first filter information for receiving signals on the at least one first resource, and / or first antenna information for receiving signals on the at least one first resource. This may avoid interference from other operators when receiving signals.

[0218] Based on the above method 500, the first network device can adjust the allocation position of the frequency resources for the first terminal device and the first filter information and first antenna information indicating that the first terminal device receives the signal, so that the first terminal device can obtain the resource allocation position on at least one first resource, as well as the filter information for receiving the signal on at least one first resource or the first antenna information for receiving the signal on at least one first resource, thereby eliminating the interference of other operators on the reception of signals by the first terminal device.

[0219] It should be understood that the methods, situations, categories and divisions of the embodiments in the present application are only for the convenience of description and should not constitute special limitations. The features of various methods, categories, situations and embodiments can be combined without contradiction.

[0220] It should also be understood that the above is merely intended to help those skilled in the art better understand the embodiments of the present application, and is not intended to limit the scope of the embodiments of the present application. Based on the above examples, those skilled in the art can obviously make various equivalent modifications or variations. For example, certain steps in the above method 500 may be unnecessary, or certain new steps may be added. Or any combination of any two or more of the above embodiments. Such modifications, variations, or combinations also fall within the scope of the embodiments of the present application.

[0221] It should also be understood that the above description of the embodiments of the present application focuses on emphasizing the differences between the various embodiments. The same or similar points that are not mentioned can be referenced with each other. For the sake of brevity, they will not be repeated here.

[0222] It should also be understood that 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 this application.

[0223] It should also be understood that in the embodiments of the present application, "pre-setting" and "pre-definition" can be achieved by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). This application does not limit its specific implementation method.

[0224] It should also be understood that in the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0225] The above describes in detail an example of the interference elimination method provided by the present application. It is understandable that, in order to implement the above functions, the first network device and the first terminal device include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in a hardware or computer software driven hardware manner depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0226] The communication device provided by this application will be introduced below.

[0227] For example, Figure 9 shows a schematic block diagram of a communication device 900 provided in an embodiment of the present application. The communication device 900 may correspond to the first network device described in each embodiment of the above method 500, or may be a chip or component applied to the first network device. Moreover, each module or unit in the communication device 900 is respectively used to execute each action or processing process performed by the first network device described in each embodiment of the above method 500.

[0228] As shown in FIG9 , the communication device 900 includes a transceiver unit 910 and a processing unit 920. The transceiver unit 910 is configured to perform specific signal transmission and reception under the drive of the processing unit 920.

[0229] In some embodiments:

[0230] The transceiver unit 910 is used to send first indication information to the first terminal device, where the first indication information is used to indicate at least one of the following: resource allocation of the first terminal device on at least one first resource of the first frequency resource, first filter information, or first antenna information, the first frequency resource includes multiple first resources, and any two of the multiple first resources are discontinuous.

[0231] The communication device provided in the present application can adjust the allocation position of frequency resources for the first terminal device and the first filter information and first antenna information indicating that the first terminal device receives the signal, so that the first terminal device can obtain the resource allocation position on at least one first resource, as well as the filter information for receiving the signal on at least one first resource or the first antenna information for receiving the signal on at least one first resource, thereby eliminating the interference of other operators on the reception of signals by the first terminal device.

[0232] Optionally, the first filter information includes one or more filter bandwidths, and the one or more filter bandwidths include the frequency resource size of at least one first resource or the frequency resource size of an allocated resource on at least one first resource.

[0233] Optionally, one or more filter bandwidths have a first association relationship with the first resource or allocated resources on the first resource.

[0234] Optionally, the first antenna information includes one or more of the following: antenna port, precoding information, transmission configuration indication TCI, sounding reference signal SRS request and demodulation reference signal DMRS sequence initialization information. The number of first antenna information is one or more, and the first antenna information is applied to at least one first resource or the allocated resource of at least one first resource.

[0235] Optionally, a second association relationship exists between one or more first antenna information and the first resource or allocated resources on the first resource.

[0236] Optionally, when the interference is greater than or greater than or equal to a first threshold, the resource allocation on at least one first resource of the first frequency resource includes: allocating resources on one first resource among multiple first resources, and the first filter information includes: the bandwidth of the filter includes the frequency resource size of a first resource or the frequency resource size of the allocated resource on a first resource.

[0237] Optionally, when the interference is greater than or greater than or equal to a first threshold, the resource allocation on at least one first resource of the first frequency resource includes: allocating resources on two first resources among multiple first resources, and the first filter information includes: the bandwidth of the filter includes the frequency resource size of a first resource or the frequency resource size of the allocated resource on a first resource, wherein the two first resources correspond to a first antenna information respectively.

[0238] Optionally, the two first resources or the allocated resources on the two first resources correspond to different antenna ports.

[0239] Optionally, the sum of the number of antenna ports corresponding to the two first resources or the allocated resources on the two first resources is less than or equal to the maximum number of antenna ports of the first terminal device.

[0240] Optionally, the transceiver unit 910 is also used to send second indication information to the first terminal device, the second indication information is used to instruct the first terminal device to measure and report the interference of the second network device on the signal received by the first terminal device, the first network device belongs to the first operator, the second network device belongs to the second operator, the first terminal device communicates on the first operator, and the first frequency resources include frequency resources occupied by the first operator and frequency resources occupied by the second operator. The frequency resources occupied by the first operator on the first frequency resources are non-continuous.

[0241] It should be understood that the specific processes for each unit in communication device 900 to perform the above-mentioned corresponding steps can be referred to the description of the first network device in conjunction with method 500 and the related embodiments in Figures 2 and 5. For example, transceiver unit 910 can perform the steps involving receiving and sending in the above-mentioned method embodiment, while processing unit 920 can perform steps other than sending and receiving. The various specific processes are as described in the method embodiment. For the sake of brevity, they are not further described here.

[0242] It should be understood that the communication device may further include a storage unit for storing instructions executed by the transceiver unit 910 and the processing unit 920. The transceiver unit 910, the processing unit 920, and the storage unit are coupled to each other, the storage unit stores instructions, the processing unit 920 is configured to execute the instructions stored in the storage unit, and the transceiver unit 910 is configured to perform specific signal transmission and reception under the drive of the processing unit 920.

[0243] It should be understood that the transceiver unit 910 may be a transceiver, an input / output interface, or an interface circuit. The storage unit may be a memory. The processing unit 920 may be implemented by a processor. Figure 10 shows a schematic block diagram of another example communication device 1000 provided in an embodiment of the present application. As shown in Figure 10, the communication device 1000 may include a processor 1010, a memory 1020, and a transceiver 1030.

[0244] The communication device 900 shown in FIG9 or the communication device 1000 shown in FIG10 can implement the steps performed by the first network device in the aforementioned method 500. Similar descriptions can refer to the descriptions of the aforementioned corresponding methods. To avoid repetition, they are not repeated here.

[0245] It should also be understood that the communication device 900 shown in FIG. 9 or the communication device 1000 shown in FIG. 10 may be a first network device.

[0246] Figure 11 shows a schematic block diagram of a communication device 1100 of an embodiment of the present application. The communication device 1100 may correspond to the first terminal device described in the above method 500, or may be a chip or component applied to the first terminal device. In addition, each module or unit in the communication device 1100 is used to execute each action or processing process performed by the first terminal device in the above method 500.

[0247] As shown in FIG11 , the communication device 1100 may include a transceiver unit 1110 and a processing unit 1120. The transceiver unit 1110 is configured to perform specific signal transmission and reception under the drive of the processing unit 1120.

[0248] In some embodiments:

[0249] The transceiver unit 1110 is used to receive first indication information sent by the first network device, where the first indication information is used to indicate at least one of the following: resource allocation of the first terminal device on at least one first resource of the first frequency resource, first filter information, or first antenna information, the first frequency resource includes multiple first resources, and any two of the multiple first resources are discontinuous.

[0250] Processing unit 1120 is used to determine at least one of the following based on the first indication information: resource allocation information on at least one first resource of the first frequency resource, first filter information for receiving a signal on at least one first resource, or first antenna information for receiving a signal on at least one first resource.

[0251] The communication device provided in the present application can receive the allocation position of frequency resources of the first network device on at least one first resource, as well as the first filter information when receiving a signal on at least one first resource and the first antenna information when receiving a signal on at least one first resource. The first terminal device can eliminate interference from different operators when receiving signals based on the resource allocation position on at least one first resource, the filter information for receiving a signal on at least one first resource or the first antenna information for receiving a signal on at least one first resource.

[0252] Optionally, the first frequency resource includes multiple first resources, and any two first resources are discontinuous.

[0253] Optionally, the first filter information includes one or more filter bandwidths, and the one or more filter bandwidths include the frequency resource size of at least one first resource or the frequency resource size of an allocated resource on at least one first resource.

[0254] Optionally, one or more filter bandwidths have a first association relationship with the first resource or allocated resources on the first resource.

[0255] Optionally, the first antenna information includes one or more of the following: antenna port, precoding information, transmission configuration indication TCI, sounding reference signal SRS request and demodulation reference signal DMRS sequence initialization information. The number of first antenna information is one or more, and the first antenna information is applied to at least one first resource or the allocated resource of at least one first resource.

[0256] Optionally, a second association relationship exists between one or more first antenna information and the first resource or allocated resources on the first resource.

[0257] Optionally, when the interference is greater than or greater than or equal to a first threshold, the resource allocation on at least one first resource of the first frequency resource includes: allocating resources on one first resource among multiple first resources, and the first filter information includes: the bandwidth of the filter includes the frequency resource size of a first resource or the frequency resource size of the allocated resource on a first resource.

[0258] Optionally, when the interference is greater than or greater than or equal to a first threshold, the resource allocation on at least one first resource of the first frequency resource includes: allocating resources on two first resources among multiple first resources, and the first filter information includes: the bandwidth of the filter includes the frequency resource size of a first resource or the frequency resource size of the allocated resource on a first resource, wherein the two first resources correspond to a first antenna information respectively.

[0259] Optionally, the two first resources or the allocated resources on the two first resources correspond to different antenna ports.

[0260] Optionally, the sum of the number of antenna ports corresponding to the two first resources or the allocated resources on the two first resources is less than or equal to the maximum number of antenna ports of the first terminal device.

[0261] Optionally, the transceiver unit 1110 is further configured to receive second indication information sent by the first network device.

[0262] Optionally, the transceiver unit 1110 is also used to measure and report the interference of the second network device on the received signal of the first terminal device based on the second indication information, the first network device belongs to the first operator, the second network device belongs to the second operator, the first terminal device communicates on the first operator, and the first frequency resources include frequency resources occupied by the first operator and frequency resources occupied by the second operator, and the frequency resources occupied by the first operator on the first frequency resources are non-continuous.

[0263] It should be understood that the specific process of each unit in the communication device 1100 performing the above-mentioned corresponding steps can be referred to the description of the terminal device in conjunction with the relevant embodiment of method 500. For example, the transceiver unit 1110 can perform the steps related to receiving and sending in the above-mentioned method embodiment, while the processing unit 1120 can perform steps other than processing and transceiving. Various specific processing methods are described in the method embodiment. For the sake of brevity, they are not further described here.

[0264] Optionally, the transceiver unit 1110 may include a receiving unit (module) and a sending unit (module), configured to execute the steps of the first terminal device receiving information and sending information in each embodiment of the aforementioned method 500 .

[0265] It should be understood that the transceiver unit 1110 may be a transceiver, an input / output interface, or an interface circuit. The storage unit may be a memory. The processing unit 1120 may be implemented by a processor. Figure 12 shows a schematic block diagram of another example communication device 1200 provided in an embodiment of the present application. As shown in Figure 12, the communication device 1200 may include a processor 1210, a memory 1220, and a transceiver 1230.

[0266] The communication device 1100 shown in FIG11 or the communication device 1200 shown in FIG12 can implement the steps performed by the first terminal device in the embodiment of the aforementioned method 500. Similar descriptions can refer to the descriptions of the aforementioned corresponding methods. To avoid repetition, they are not repeated here.

[0267] It should also be understood that the communication device 1100 shown in FIG. 11 or the communication device 1200 shown in FIG. 12 may be a terminal device.

[0268] It should also be understood that the division of units in the above device is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. Moreover, the units in the device can all be implemented in the form of software called through processing elements; or all be implemented in the form of hardware; or some units can be implemented in the form of software called through processing elements, and some units can be implemented in the form of hardware. For example, each unit can be a separately established processing element, or it can be integrated into a certain chip of the device. In addition, it can also be stored in a memory in the form of a program, and called by a certain processing element of the device to execute the function of the unit. Here, the processing element can also be called a processor, which can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each unit above can be implemented by the integrated logic circuit of the hardware in the processor element or in the form of software called through the processing element.

[0269] In one example, the unit in any of the above devices may be one or more integrated circuits configured to implement the above method, such as one or more application specific integrated circuits (ASICs), or one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms. For another example, when the unit in the device can be implemented in the form of a processing element scheduler, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call a program. For another example, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0270] Figure 13 is a schematic diagram of the structure of a terminal device 1300 provided in this application, which can be used to implement the functions of the first terminal device in the above method. The above-mentioned communication device 1100 or communication device 1200 can be configured in the terminal device 1300. Alternatively, the communication device 1100 or communication device 1200 itself can be the terminal device 1300. In other words, the terminal device 1300 can perform the actions performed by the first terminal in the above method 500. Optionally, for ease of explanation, Figure 13 only shows the main components of the terminal device. As shown in Figure 13, the terminal device 1300 includes a processor, memory, control circuit, antenna, and input and output devices.

[0271] The processor is primarily used to process communication protocols and communication data, control the entire terminal device, execute software programs, and process software program data, such as supporting the terminal device in executing the actions described in the embodiment of the method for indicating a transmission precoding matrix. The memory is primarily used to store software programs and data, such as the codebook described in the above embodiment. The control circuit is primarily used to convert baseband signals into radio frequency signals and process radio frequency signals. The control circuit and antenna together are also called a transceiver, which is primarily used to transmit and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, displays, and keyboards, are primarily used to receive user input and output data to the user.

[0272] When the terminal device is powered on, the processor reads the software program stored in the storage unit, interprets and executes the program's instructions, and processes the program's data. When data needs to be transmitted wirelessly, the processor performs baseband processing on the data to be transmitted and outputs the baseband signal to the RF circuit. The RF circuit then performs RF processing on the baseband signal and transmits it via the antenna as electromagnetic waves. When data is sent to the terminal device, the RF circuit receives the RF signal via the antenna, converts it into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes it.

[0273] Those skilled in the art will appreciate that, for ease of explanation, FIG13 shows only one memory and processor. In an actual terminal device, multiple processors and memories may exist. The memory may also be referred to as a storage medium or storage device, etc., which is not limited in the present embodiment.

[0274] For example, a processor may include a baseband processor and a central processing unit (CPU). The baseband processor is primarily responsible for processing communication protocols and communication data, while the CPU is primarily responsible for controlling the entire terminal device, executing software programs, and processing data from software programs. The processor in Figure 13 integrates the functions of both the baseband processor and the CPU. Those skilled in the art will appreciate that the baseband processor and the CPU may also be independent processors interconnected via a bus or other technology. Those skilled in the art will appreciate that a terminal device may include multiple baseband processors to accommodate different network standards, multiple CPUs to enhance its processing capabilities, and that the various components of the terminal device may be connected via various buses. The baseband processor may also be referred to as a baseband processing circuit or a baseband processing chip. The CPU may also be referred to as a central processing circuit or a central processing chip. The functionality for processing communication protocols and communication data may be built into the processor or stored as a software program in a storage unit, with the processor executing the software program to implement the baseband processing functionality.

[0275] By way of example, in an embodiment of the present application, an antenna and a control circuit having transceiver functions may be regarded as a transceiver unit 1301 of the terminal device 1300, and a processor having a processing function may be regarded as a processing unit 1302 of the terminal device 1300. As shown in FIG13 , the terminal device 1300 includes a transceiver unit 1301 and a processing unit 1302. The transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver device, etc. Optionally, the device used to implement the receiving function in the transceiver unit 1301 may be regarded as a receiving unit, and the device used to implement the transmitting function in the transceiver unit 1301 may be regarded as a transmitting unit, that is, the transceiver unit 1301 includes a receiving unit and a transmitting unit. By way of example, the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, etc., and the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0276] Figure 14 is a structural diagram of a network device 1400 provided in an embodiment of the present application, which can be used to implement the functions of the network device in the above method. The network device 1400 includes one or more radio frequency units, such as a remote radio unit (RRU) 1401 and one or more baseband units (BBU) (also known as digital units, DU) 1402. The RRU 1401 can be called a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., and may include at least one antenna 14011 and a radio frequency unit 14012. The RRU 1401 part is mainly used for receiving and transmitting radio frequency signals and converting radio frequency signals into baseband signals, for example, for sending signaling messages in the above embodiment to terminal devices. The BBU 1402 part is mainly used for baseband processing, controlling the base station, etc. The RRU 1401 and BBU 1402 can be physically set together or physically separated, that is, a distributed base station.

[0277] The BBU 1402 is the control center of the base station, which can also be called a processing unit, and is mainly used to perform baseband processing functions, such as channel coding, multiplexing, modulation, spread spectrum, etc. For example, the BBU (processing unit) 1402 can be used to control the base station to execute the operation process of the first network device in the above method embodiment.

[0278] In one example, the BBU 1402 may be composed of one or more single boards, and the multiple single boards may jointly support a wireless access network of a single access standard (such as an LTE system or a 5G system), or may respectively support wireless access networks of different access standards. The BBU 1402 also includes a memory 14021 and a processor 14022. The memory 14021 is used to store necessary instructions and data. For example, the memory 14021 stores the codebook in the above embodiment, etc. The processor 14022 is used to control the base station to perform necessary actions, such as controlling the base station to execute the operation process of the network device in the above method embodiment. The memory 14021 and the processor 14022 can serve one or more single boards. That is, a memory and a processor can be set separately on each single board. Alternatively, multiple single boards may share the same memory and processor. In addition, necessary circuits may be provided on each single board.

[0279] In one possible implementation, with the development of system-on-chip (SoC) technology, all or part of the functions of parts 1402 and 1401 can be implemented using SoC technology. For example, they can be implemented using a base station function chip that integrates a processor, memory, antenna interface, and other components. Programs for base station-related functions are stored in the memory, and the processor executes the programs to implement the base station-related functions. Optionally, the base station function chip can also read memory external to the chip to implement the base station-related functions.

[0280] It should also be understood that the division of units in the above device is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. Moreover, the units in the device can all be implemented in the form of software called through processing elements; or all be implemented in the form of hardware; or some units can be implemented in the form of software called through processing elements, and some units can be implemented in the form of hardware. For example, each unit can be a separately established processing element, or it can be integrated into a certain chip of the device. In addition, it can also be stored in a memory in the form of a program, and called by a certain processing element of the device to execute the function of the unit. Here, the processing element can also be called a processor, which can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each unit above can be implemented by the integrated logic circuit of the hardware in the processor element or in the form of software called through the processing element. In one example, the unit in any of the above devices may be one or more integrated circuits configured to implement the above method, such as one or more application specific integrated circuits (ASICs), or one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms. For another example, when the unit in the device can be implemented in the form of a processing element scheduler, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call a program. For another example, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0281] An embodiment of the present application also provides a chip system, as shown in Figure 15, which includes at least one processor 1510 and at least one interface circuit 1520. The processor 1510 and the interface circuit 1520 can be interconnected via lines. For example, the interface circuit 1520 can be used to receive signals from other devices (such as the memory of the terminal device 1200). For another example, the interface circuit 1520 can be used to send signals to other devices (such as the processor 1510). Exemplarily, the interface circuit 1520 can read instructions stored in the memory and send the instructions to the processor 1510. When the instructions are executed by the processor 1510, the terminal device can execute the various steps performed by the terminal device in the above embodiment. Of course, the chip system can also include other discrete components, which is not specifically limited in the embodiment of the present application.

[0282] An embodiment of the present application further provides a communication system, which includes: the network device (eg, the first network device) and the terminal device (eg, the first terminal device, etc.) provided in the above method embodiment.

[0283] The present application also provides a computer-readable storage medium for storing computer program code, wherein the computer program includes instructions for executing any one of the interference cancellation methods provided in the embodiments of the present application. The readable medium may be a read-only memory (ROM) or a random access memory (RAM), which is not limited in the present application.

[0284] The present application also provides a computer program product, which includes instructions. When the instructions are executed, the first network device and the first terminal device perform corresponding operations in the above method.

[0285] An embodiment of the present application further provides a chip in a communication device, comprising: a processing unit and a communication unit. The processing unit may be, for example, a processor, and the communication unit may be, for example, an input / output interface, a pin, or a circuit. The processing unit may execute computer instructions to cause the communication device to perform any of the interference cancellation methods provided in the embodiments of the present application.

[0286] Optionally, the computer instructions are stored in a storage unit.

[0287] Optionally, the storage unit is a storage unit within the chip, such as a register, cache, etc. The storage unit can also be a storage unit located outside the chip within the terminal, such as a ROM or other type of static storage device that can store static information and instructions, random access RAM, etc. The processor mentioned in any of the above can be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for controlling the execution of the program of the above-mentioned feedback information transmission method. The processing unit and the storage unit can be decoupled and respectively set on different physical devices, and connected by wired or wireless means to implement the respective functions of the processing unit and the storage unit to support the system chip to implement the various functions in the above-mentioned embodiments. Alternatively, the processing unit and the memory can also be coupled on the same device.

[0288] Among them, the terminal device, computer-readable storage medium, computer program product or chip provided in this embodiment are all used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods provided above, and will not be repeated here.

[0289] It will be appreciated that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a ROM, a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a RAM, which is used as an external cache. There are many different types of RAM, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).

[0290] Various objects such as various messages / information / equipment / network elements / systems / devices / actions / operations / processes / concepts that may appear in this application are named. It can be understood that these specific names do not constitute a limitation on the relevant objects. The names assigned may change with factors such as scenarios, contexts or usage habits. The understanding of the technical meaning of the technical terms in this application should be mainly determined from the functions and technical effects embodied / executed in the technical solutions.

[0291] In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0292] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can 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.

[0293] The methods in the embodiments of the present application can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, they can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on a computer, the process or function described in the embodiments of the present application is executed in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program or instruction can be stored in a computer-readable storage medium or transmitted via the computer-readable storage medium. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server that integrates one or more available media.

[0294] 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.

[0295] 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.

[0296] 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.

[0297] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0298] 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 readable storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned readable storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

[0299] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A method for interference elimination, characterized in that: The method is applied to a first network device, and the method includes: A first indication information is sent to a first terminal device, where the first indication information is used to indicate at least one of the following: resource allocation of the first terminal device on at least one first resource of a first frequency resource, first filter information, or first antenna information, where the first frequency resource includes multiple first resources, and any two of the multiple first resources are discontinuous.

2. The method according to claim 1, characterized in that The first filter information includes one or more filter bandwidths, where the one or more filter bandwidths include a frequency resource size of at least one first resource or a frequency resource size of an allocated resource on at least one first resource.

3. The method according to claim 1 or 2, characterized in that: The one or more filter bandwidths have a first association relationship with the first resource or an allocated resource on the first resource.

4. The method according to any one of claims 1 to 3, characterized in that The first antenna information includes one or more of the following: antenna port, precoding information, transmission configuration indication TCI, sounding reference signal SRS request and demodulation reference signal DMRS sequence initialization information. The number of the first antenna information is one or more, and the first antenna information is applied to at least one first resource or an allocated resource of at least one first resource.

5. The method according to any one of claims 1 to 4, characterized in that There is a second association relationship between the one or more first antenna information and the first resource or an allocated resource on the first resource.

6. The method according to any one of claims 1 to 5, characterized in that When the interference is greater than or greater than or equal to a first threshold, the resource allocation on at least one first resource of the first frequency resources includes: allocating resources on a first resource among the multiple first resources, and the first filter information includes: the bandwidth of the filter includes the frequency resource size of a first resource or the frequency resource size of an allocated resource on a first resource.

7. The method according to any one of claims 1 to 6, characterized in that When the interference is greater than or greater than or equal to a first threshold, the resource allocation on at least one first resource of the first frequency resource includes: allocating resources on two first resources among the multiple first resources, and the first filter information includes: the bandwidth of the filter includes the frequency resource size of a first resource or the frequency resource size of the allocated resources on a first resource, wherein the two first resources correspond to a first antenna information respectively.

8. The method according to claim 7, characterized in that The two first resources or the allocated resources on the two first resources correspond to different antenna ports.

9. The method according to claim 8, characterized in that The sum of the numbers of antenna ports corresponding to the two first resources or the allocated resources on the two first resources is less than or less than or equal to the maximum number of antenna ports of the first terminal device.

10. The method according to any one of claims 1 to 9, characterized in that The method further comprises: Send second indication information to the first terminal device, where the second indication information is used to instruct the first terminal device to measure and report interference caused by a second network device on a signal received by the first terminal device, the first network device belongs to a first operator, the second network device belongs to a second operator, the first terminal device communicates on the first operator, and the first frequency resources include frequency resources occupied by the first operator and frequency resources occupied by the second operator, and the frequency resources occupied by the first operator on the first frequency resources are non-continuous.

11. A method for interference elimination, characterized in that: The method is applied to a first terminal device, and the method includes: Receive first indication information sent by a first network device, where the first indication information is used to indicate at least one of the following: resource allocation of the first terminal device on at least one first resource of a first frequency resource, first filter information, or first antenna information, where the first frequency resource includes multiple first resources, and any two of the multiple first resources are discontinuous; At least one of the following is determined based on the first indication information: resource allocation information on at least one first resource of the first frequency resources, first filter information for receiving a signal on at least one first resource, or first antenna information for receiving a signal on at least one first resource.

12. The method according to claim 11, characterized in that The first filter information includes one or more filter bandwidths, where the one or more filter bandwidths include a frequency resource size of at least one first resource or a frequency resource size of an allocated resource on at least two first resources.

13. The method according to claim 11 or 12, characterized in that: The one or more filter bandwidths have a first association relationship with the first resource or an allocated resource on the first resource.

14. The method according to any one of claims 11 to 13, characterized in that The first antenna information includes one or more of the following: antenna port, precoding information, transmission configuration indication TCI, sounding reference signal SRS request and demodulation reference signal DMRS sequence initialization information. The number of the first antenna information is one or more, and the first antenna information is applied to at least one first resource or an allocated resource of at least one first resource.

15. The method according to any one of claims 11 to 14, characterized in that There is a second association relationship between the one or more first antenna information and the first resource or an allocated resource on the first resource.

16. The method according to any one of claims 11 to 15, characterized in that When the interference is greater than or greater than or equal to a first threshold, the resource allocation on at least one first resource of the first frequency resources includes: allocating resources on a first resource among the multiple first resources, and the first filter information includes: the bandwidth of the filter includes the frequency resource size of a first resource or the frequency resource size of an allocated resource on a first resource.

17. The method according to any one of claims 11 to 15, characterized in that When the interference is greater than or greater than or equal to a first threshold, the resource allocation on at least one first resource of the first frequency resource includes: allocating resources on two first resources among the multiple first resources, and the first filter information includes: the bandwidth of the filter includes the frequency resource size of a first resource or the frequency resource size of the allocated resources on a first resource, wherein the two first resources correspond to a first antenna information respectively.

18. The method according to claim 17, characterized in that The two first resources or the allocated resources on the two first resources correspond to different antenna ports.

19. The method according to claim 18, characterized in that The sum of the numbers of antenna ports corresponding to the two first resources or the allocated resources on the two first resources is less than or less than or equal to the maximum number of antenna ports of the first terminal device.

20. The method according to any one of claims 11 to 19, characterized in that The method further comprises: Receiving second indication information sent by the first network device; Based on the second indication information, the interference of the second network device on the signal received by the first terminal device is measured and reported, the first network device belongs to the first operator, the second network device belongs to the second operator, the first terminal device communicates on the first operator, and the first frequency resources include frequency resources occupied by the first operator and frequency resources occupied by the second operator, and the frequency resources occupied by the first operator on the first frequency resources are non-continuous.

21. A communication device, characterized in that: The apparatus comprises at least one processor coupled to at least one memory: The at least one processor is configured to execute a computer program or instruction in the at least one memory so that the method according to any one of claims 1 to 10 is executed, or so that the method according to any one of claims 11 to 20 is executed.

22. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program or instructions. When a computer reads and executes the computer program or instructions, the computer executes the method as claimed in any one of claims 1 to 10, or executes the method as claimed in any one of claims 11 to 20.

23. A chip, characterized in that: include: A processor, configured to execute the method according to any one of claims 1 to 10, or to execute the method according to any one of claims 11 to 20.

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