Interference elimination method and communication device

Abstract

Provided are an interference cancellation method and a communication device, the method comprising: a first network device sending first indication information to a first terminal device, the first indication information being used for indicating at least one of the following items: resource allocation of the first terminal device on at least one first resource of a first frequency resource, first filter information, and second resource allocation of the first terminal device on at least one second resource of the first frequency resource; or the first antenna information and the first frequency resource comprise a plurality of first resources, and any two first resources are discontinuous. According to the method provided by the application, the first network device can adjust the allocation position of the frequency resource for the first terminal device and the first filter information and the first antenna information indicating the first terminal device to receive the signal, so that the first terminal device can obtain the resource allocation position on at least one first resource; and the filter information of the signal received on the first resource or the first antenna information of the signal received on the first resource, thereby eliminating the interference of the different operator on the signal receiving of the first terminal device.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and more specifically, to a method for interference cancellation and a communication device. Background Art

[0002] In a cross-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 a terminal device communicating in the Operator A network receives signals using a broadband filter including continuous frequency resources, the received signals of Operator A contain interference from Operator B or the transmitted signals of terminal devices communicating on Operator B. Therefore, how to eliminate this interference is an issue that needs attention currently. Summary of the Invention

[0003] This application provides a method for interference cancellation and a communication device. In this method, the base station instructs the terminal device to measure and report the interference of cross-operators, and the base station adjusts the resource allocation for the terminal device according to the interference level and instructs the terminal device to use a broadband filter or a narrowband filter to receive signals, thereby eliminating the interference of cross-operators to the received signals of the terminal device.

[0004] In a first aspect, a method for interference cancellation 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. This application does not make any limitation in this regard.

[0005] Specifically, the method includes: sending first indication information 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 in a first frequency resource, first filter information, or first antenna information, where the first frequency resource includes a plurality of first resources, and any two of the plurality of first resources are not continuous.

[0006] For the method for interference cancellation provided in the first aspect, the first network device can adjust the allocation position of the frequency resources for the first terminal device and indicate the first filter information and the first antenna information for the first terminal device to receive signals, so that the first terminal device can obtain the allocation position of the resource on at least one first resource, and the filter information for receiving signals on at least one first resource or the first antenna information for receiving signals on at least one first resource, thereby eliminating the interference of cross-operators to the received signals of the first terminal device.

[0007] 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, the first frequency resource includes 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 resource are discontinuous.

[0008] It should be understood that the second indication information is determined according to the interference of the second network device on the first terminal device. The interference of the second network device on the received signal of the first terminal device also includes the interference of the second terminal device communicating on the second network device on the received signal of 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 received signal of the first terminal device. The embodiments of the present application do not specifically limit the source of the interference.

[0009] It should also be noted that the first frequency resource may also include more operators. The embodiments of the present application do not specifically limit the operators accessed by the first operator occupying discontinuous frequency resources on the first frequency resource.

[0010] It should be understood that the resources within the first resource may be continuous or discontinuous. The embodiments of the present application do not specifically limit this.

[0011] 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 the allocated resources on at least one first resource.

[0012] In this implementation manner, the first network device may indicate a narrowband filter bandwidth to the first terminal device, so that the first terminal device receives signals based on the narrowband filter bandwidth, avoiding receiving signals on the corresponding spectrum of other operators, thereby avoiding or reducing the interference of other operators on the received signals of the first terminal device; or the first network device may 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, avoiding receiving signals on the corresponding spectrum of other operators, thereby avoiding or reducing the interference of other operators on the received signals of the first terminal device; or the first network device may indicate multiple narrowband filter bandwidths to the first terminal device. It should be understood that the multiple narrowband filter bandwidths do not include all of the first resources, that is, when the first terminal device receives signals based on the multiple narrowband filters, it avoids receiving signals on the corresponding spectrum of other operators, thereby avoiding or reducing the interference of other operators on the received signals of the first terminal device.

[0013] It should be noted that a filter bandwidth can be the frequency resource size of at least one first resource, or a filter bandwidth can be the frequency resource size of the allocated resources on at least one first resource. Or a filter bandwidth can also be greater than the frequency resource of the first resource and less than the sum of the frequency resource of the first resource and the second threshold, or a filter bandwidth is greater than the frequency resource of the allocated resources on the first resource and less than the sum of the frequency resource of the first resource and the second threshold. It should be understood that the second threshold can be a predefined filter bandwidth tolerance.

[0014] In a possible implementation manner of the first aspect, one or more filter bandwidths have a first association relationship with the first resource or the allocated resources on the first resource.

[0015] 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 resources of the corresponding first resource, the frequency center of the filter is consistent with the frequency center of the allocated resources of the first resource.

[0016] In a possible implementation manner 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 the first antenna information is one or more, and the first antenna information is applied to at least one first resource or the allocated resources of at least one first resource.

[0017] In this implementation manner, the first antenna information can be multiple. That is, in the embodiments of the present application, when the first network device allocates resources to two non - consecutive first resources, the first network device needs to separately indicate the antenna port, precoding information, TCI, SRS request, and DMRS sequence initialization information on the two first resources through a DCI or MAC CE signaling.

[0018] In a possible implementation manner of the first aspect, one or more pieces of the first antenna information have a second association relationship with the first resource or the allocated resources on the first resource. In this implementation manner, 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 resources on the first resource.

[0019] In a possible implementation of the first aspect, when the interference is greater than or equal to the first threshold, the resource allocation on at least one first resource of the first frequency resource includes: allocating resources on one of the multiple first resources. 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 resources on one first resource. In this implementation, when the interference degree of the second operator on the first terminal device is relatively large, the first network device may allocate resources in any one of the two discontinuous first resources occupied by the first operator, and the first network device instructs the first terminal device to receive signals on the first resource for communication using the filter bandwidth of the frequency resource size of the first resource, or the first network device instructs the first terminal device to receive signals on the allocated resources on the first resource for communication using the filter bandwidth of the frequency resource size of the first resource, thereby eliminating the strong interference of the second network device on the signal received by the first terminal device.

[0020] It should be noted that the interference being greater than or equal to the first threshold can be understood as the parameter representing the interference being greater than or equal to the first threshold. The parameter representing the interference can be RSRP, RSRQ or RSSI, and this parameter representing the interference can also be other power metrics of the reference signal. The embodiments of the present application do not make specific limitations on this.

[0021] It should also be noted that the first threshold can be determined according to specific interference parameters, and the embodiments of the present application do not make limitations on this.

[0022] In a possible implementation of the first aspect, when the interference is greater than or equal to the first threshold, the resource allocation on at least one first resource of the first frequency resource includes: allocating resources on two of the multiple first resources. 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 resources on one first resource, where the two first resources respectively correspond to one first antenna information. In this implementation, when the interference degree of the second operator on the first terminal device is relatively large, the first network device may allocate resources on the two discontinuous first resources occupied by the first operator, and the first network device instructs the first terminal device to receive signals on the two first resources for communication respectively using the frequency resource size of the first resource or the frequency resource size of the allocated resources on one first resource, thereby eliminating the strong interference of the second network device on the signal received by the first terminal device.

[0023] In a possible implementation of the first aspect, the two first resources or the allocated resources on the two first resources correspond to different antenna ports. 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 receive signals using two narrowband filters, 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 respectively.

[0024] In a possible implementation of the first aspect, the two first resources or the allocated resources on the two first resources correspond to the same antenna port.

[0025] 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 receive signals using two narrowband filters, the maximum number of streams of each signal is limited and cannot reach the maximum number of streams. Therefore, the first network device can instruct the first terminal device about the number of antenna ports for receiving signals, 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.

[0026] 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 to the first terminal device in the two first resources respectively and uses the same port, and instructs the first terminal device to receive signals using two narrowband filters, the signals on the two resources carry the same information and the maximum number of streams of the signals is limited, at most reaching half of the maximum number of streams. Therefore, the first network device can instruct the first terminal device about the number of antenna ports for receiving signals, 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 both are less than or less than or equal to half of the maximum number of antenna ports of the first terminal device.

[0027] In a possible implementation of the first aspect, the method further includes: a first network device sending second indication information to a first terminal device, where the second indication information is used to instruct the first terminal device to measure and report the interference of a second network device on the 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 resource includes the frequency resources occupied by the first operator and the frequency resources occupied by the second operator. The frequency resources occupied by the first operator on the first frequency resource are discontinuous. In this implementation, the first network device may instruct the first terminal 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 results measured and reported by the first terminal device.

[0028] Optionally, the second indication information sent by the first network device to the first terminal device may further 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.

[0029] In a second aspect, a method for interference cancellation is provided. The method provided in the second aspect may be executed by the first terminal device or by a chip configured in the first terminal device. This application does not make any limitations in this regard.

[0030] Specifically, the method includes: the first terminal device receiving 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, where the first frequency resource includes a plurality of first resources, and any two of the plurality of first resources are discontinuous. Determining 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 signals on at least one first resource, or first antenna information for receiving signals on at least one first resource.

[0031] For the method for interference cancellation provided in the second aspect, the first terminal device may receive the allocation location of the frequency resources of the first network device on at least one first resource, the first filter information when receiving signals on at least one first resource, and the first antenna information when receiving signals on at least one first resource. The first terminal device can cancel the interference of different operators when receiving signals based on the resource allocation location on at least one first resource, and the filter information or the first antenna information for receiving signals on at least one first resource.

[0032] 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, the first frequency resource includes 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 resource are discontinuous.

[0033] It should be understood that the second indication information is determined according to the interference of the second network device on the first terminal device. The interference of the second network device on the received signal of the first terminal device also includes the interference of the second terminal device communicating on the second network device on the received signal of 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 received signal of the first terminal device. The embodiments of the present application do not specifically limit the source of the interference.

[0034] It should also be noted that there may be more operators on the first frequency resource. The embodiments of the present application do not specifically limit the operators accessed by the first operator occupying discontinuous frequency resources on the first frequency resource.

[0035] It should be understood that the resources within the first resource may be continuous or discontinuous. The embodiments of the present application do not specifically limit this.

[0036] In a possible implementation manner 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 the allocated resources on at least one first resource.

[0037] In this implementation manner, the first network device may indicate a narrowband filter bandwidth to the first terminal device, so that the first terminal device receives signals based on the narrowband filter bandwidth, avoiding receiving signals on the corresponding spectrum of other operators, thereby avoiding or reducing the interference of other operators on the received signals of the first terminal device; or the first network device may 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, avoiding receiving signals on the corresponding spectrum of other operators, thereby avoiding or reducing the interference of other operators on the received signals of the first terminal device; or the first network device may indicate multiple narrowband filter bandwidths to the first terminal device. It should be understood that the multiple narrowband filter bandwidths do not include all of the first resources, that is, when the first terminal device receives signals based on the multiple narrowband filters, it can avoid receiving signals on the corresponding spectrum of other operators, thereby avoiding or reducing the interference of other operators on the received signals of the first terminal device.

[0038] It should be noted that a filter bandwidth can be the frequency resource size of at least one first resource, or a filter bandwidth can be the frequency resource size of the allocated resources on at least one first resource. Or a filter bandwidth can also be greater than the frequency resource of the first resource and less than the sum of the frequency resource of the first resource and the second threshold, or a filter bandwidth is greater than the frequency resource of the allocated resources on the first resource and less than the sum of the frequency resource of the first resource and the second threshold. It should be understood that the second threshold can be a predefined filter bandwidth tolerance.

[0039] In a possible implementation of the second aspect, one or more filter bandwidths have a first association relationship with the first resource or the allocated resources on the first resource.

[0040] This 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 means 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 resources of the corresponding first resource, the frequency center of the filter is consistent with the frequency center of the allocated resources of the first resource.

[0041] 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 the first antenna information is one or more, and the first antenna information is applied to at least one first resource or the allocated resources of at least one first resource.

[0042] In this implementation, the first antenna information can be multiple. That is, in the embodiments of the present application, when the first network device allocates resources to two non - consecutive first resources, the first network device needs to respectively indicate the antenna port, precoding information, TCI, SRS request, and DMRS sequence initialization information on the two first resources through a DCI or MAC CE signaling.

[0043] In a possible implementation of the second aspect, one or more pieces of the first antenna information have a second association relationship with the first resource or the allocated resources on the first resource. In this implementation, the first network device sends the first antenna information to the first terminal device based on the position of the first resource or the position of the allocated resources on the first resource.

[0044] In a possible implementation of the second aspect, when the interference is greater than or equal to the first threshold, the resource allocation on at least one first resource of the first frequency resource includes: allocating resources on one of the multiple first resources. 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 resources on one first resource. In this implementation, when the interference degree of the second operator on the first terminal device is relatively large, the first network device can allocate resources in any one of the two discontinuous first resources occupied by the first operator, and the first network device instructs the first terminal device to receive signals on the first resource for communication using the filter bandwidth of the frequency resource size of the first resource, or the first network device instructs the first terminal device to receive signals on the allocated resources on the first resource for communication using the filter bandwidth of the frequency resource size of the first resource, thereby eliminating the strong interference of the second network device on the signal received by the first terminal device.

[0045] It should be noted that the interference being greater than or equal to the first threshold can be understood as the parameter characterizing the interference being greater than or equal to the first threshold. The parameter characterizing the interference can be RSRP, RSRQ, or RSSI. This parameter characterizing the interference can also be other power metrics of the reference signal. The embodiments of the present application do not make specific limitations in this regard.

[0046] It should also be noted that the first threshold can be determined according to specific interference parameters, and the embodiments of the present application do not make limitations in this regard.

[0047] In a possible implementation of the second aspect, when the interference is greater than or equal to the first threshold, the resource allocation on at least one first resource of the first frequency resource includes: allocating resources on two of the multiple first resources. 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 resources on one first resource, where the two first resources respectively correspond to one first antenna information. In this implementation, when the interference degree of the second operator on the first terminal device is relatively large, the first network device can allocate resources on the two discontinuous first resources occupied by the first operator, and the first network device instructs the first terminal device to receive signals on the two first resources for communication respectively using the frequency resource size of the first resource or the frequency resource size of the allocated resources on one first resource, thereby eliminating the strong interference of the second network device on the signal received by the first terminal device.

[0048] In a possible implementation of the second aspect, the two first resources or the allocated resources on the two first resources correspond to different antenna ports. 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 receive signals using two narrowband filters, 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 respectively.

[0049] 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 receive signals using two narrowband filters, the maximum number of streams of each signal is limited and cannot reach the maximum number of streams. Therefore, the first network device can instruct the first terminal device about the number of antenna ports for receiving signals, 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.

[0050] In a possible implementation of the second aspect, the two first resources or the allocated resources on the two first resources correspond to the same antenna port.

[0051] 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 to the first terminal device in the two first resources respectively and uses the same port, and instructs the first terminal device to receive signals using two narrowband filters, the signals on the two resources carry the same information and the maximum number of streams of the signals is limited, at most reaching half of the maximum number of streams. Therefore, the first network device can instruct the first terminal device about the number of antenna ports for receiving signals, 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 both are less than or less than or equal to half of the maximum number of antenna ports of the first terminal device.

[0052] In a possible implementation of the second aspect, the method further includes: a first terminal device receives second indication information sent by a first network device; based on the second indication information, measures and reports the interference of a second network device on the signal received by the first terminal device. The first network device belongs to a first operator, and the second network device belongs to a second operator. The first terminal device communicates on the first operator, and the first frequency resource includes the frequency resources occupied by the first operator and the frequency resources occupied by the second operator. The frequency resources occupied by the first operator on the first frequency resource are discontinuous. In this implementation, the first terminal device receives a 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.

[0053] Optionally, the second indication information sent by the first network device to the first terminal device may further 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.

[0054] In a third aspect, a communication system is provided. The system includes a first network device and a first terminal device. The first network device is configured to execute the method in the first aspect or any possible implementation manner of the first aspect above, and the first terminal device is configured to execute the method in the second aspect or any possible implementation manner of the second aspect above.

[0055] In a fourth aspect, a communication device is provided. The communication device includes units for executing each step in the first aspect or any possible implementation manner of the first aspect above, or each step in the second aspect or any possible implementation manner of the second aspect above.

[0056] In a fifth aspect, a communication device is provided. The communication device includes at least one processor and a memory. The processor and the memory are coupled. The memory stores program instructions. When the program instructions stored in the memory are executed by the processor, the method in the first aspect or any possible implementation manner of the first aspect above, or the method in the second aspect or any possible implementation manner of the second aspect above is executed.

[0057] In a sixth aspect, a communication device is provided. The communication device includes at least one processor and an interface circuit. The at least one processor is configured to execute the method in the first aspect or any possible implementation manner of the first aspect above, or the method in the second aspect or any possible implementation manner of the second aspect above.

[0058] In a seventh aspect, a computer program product is provided, which includes a computer program that, when executed by a processor, is used to execute the method in the above first aspect or any possible implementation manner of the first aspect, or the method in the above second aspect or any possible implementation manner of the second aspect.

[0059] In an eighth aspect, a computer-readable storage medium is provided, in which a computer program is stored and, when the computer program is executed, is used to execute the method in the above first aspect or any possible implementation manner of the first aspect, or the method in the above second aspect or any possible implementation manner of the second aspect.

[0060] In a ninth aspect, a chip is provided, which includes a processor configured to call and run a computer program from a memory, so that a communication device installed with the chip executes the method in the above first aspect or any possible implementation manner of the first aspect, or the method in the above second aspect or any possible implementation manner of the second aspect. Description of the Drawings

[0061] Figure 1 Shows a schematic diagram of cross-carrier broadband communication in the related art.

[0062] Figure 2 Shows a schematic diagram of a communication system provided by an embodiment of the present application.

[0063] Figure 3 Shows a schematic structural diagram of network device 20 and terminal device 30 provided by an embodiment of the present application.

[0064] Figure 4 Shows a communication protocol stack structure of a network device 20 and a terminal device 30 provided by an embodiment of the present application.

[0065] Figure 5 Shows a schematic interaction diagram of a method 500 for interference cancellation provided by an embodiment of the present application.

[0066] Figure 6 Shows a schematic diagram of interference measurement and resource usage provided by an embodiment of the present application.

[0067] Figure 7 Shows another schematic diagram of interference measurement and resource usage provided by an embodiment of the present application.

[0068] Figure 8 Shows another schematic diagram of interference measurement and resource usage provided by an embodiment of the present application.

[0069] Figure 9 The schematic block diagram of the communication device 900 provided by the embodiment of the present application is shown.

[0070] Figure 10 The schematic block diagram of another example of the communication device 1000 provided by the embodiment of the present application is shown.

[0071] Figure 11 The schematic block diagram of the communication device 1100 provided by the embodiment of the present application is shown.

[0072] Figure 12 The schematic block diagram of another example of the communication device 1200 provided by the embodiment of the present application is shown.

[0073] Figure 13 The structural schematic diagram of a terminal device 1300 provided by the present application is shown.

[0074] Figure 14 The structural schematic diagram of a network device 1400 provided by the embodiment of the present application is shown.

[0075] Figure 15 The schematic diagram of the chip system provided by the embodiment of the present application is shown. Detailed implementation manners

[0076] Next, the technical solutions in the present application will be described with reference to the accompanying drawings.

[0077] The technical solutions of the embodiments of this 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 5th generation (5G) system or New Radio (NR), etc.

[0078] The terminal device in the embodiments of this application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile terminal, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device may also be a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication function, computing device or other processing devices connected to a wireless modem, vehicle-mounted device, wearable device, terminal device in the future 5G network or terminal device in the future evolved Public Land Mobile Network (PLMN), etc. The embodiments of this application are not limited thereto.

[0079] The network device in the embodiments of this application can be a device for communicating with a terminal device. The network device can be a base transceiver station (BTS) in a global system for mobile communications (GSM) system or a code division multiple access (CDMA) system, or a NodeB (NB) in a wideband code division multiple access (WCDMA) system, or an evolved NodeB (eNB or eNodeB) in an LTE system, or a radio 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, and a network device in a future 5G network or a network device in a future evolved PLMN network, etc. The embodiments of this application do not limit it.

[0080] In the embodiments of this application, the terminal device or the 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 a memory (also called main memory). The operating system can be any one or more computer operating systems that implement service processing through a process. For example, a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system, etc. The application layer includes applications such as a browser, an address book, a word processing software, and an instant messaging software. Moreover, the embodiments of this application do not particularly limit the specific structure of the execution subject of the method provided in the embodiments of this application. As long as it can communicate according to the method provided in the embodiments of this application by running a program that records the code of the method provided in the embodiments of this application. For example, the execution subject of the method provided in the embodiments of this 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 and execute the program.

[0081] In addition, various aspects or features of the present application can be implemented as a method, an apparatus, or an article of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, computer-readable media can include, but are not limited to, magnetic storage devices (such as hard disks, floppy disks, or magnetic tapes, etc.), optical discs (such as compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards, and flash memory devices (such as erasable programmable read-only memories (EPROMs), cards, sticks, or key drives, etc.). Additionally, the various storage media described herein can represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable media" can include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0082] Existing communication network architectures are becoming increasingly diverse, and there are often multiple different cells overlapping in the same area. For example, different operators may set up their own base stations in the same area to provide services for the user equipment of that operator within the area. Different base stations belong to different operators. In an inter-operator broadband communication scenario, the frequency band resources of operator A may be distributed on both sides of the frequency band resources of another operator B. When a terminal device communicating on operator A filters the signals on the two segments of the spectrum of operator A using a broadband filter, it will cause the signal power of the spectrum of operator B in the middle of the two segments of the spectrum of operator A to leak onto the spectrum of operator A, that is, the terminal device communicating on operator A cannot filter out this interference when using the broadband filter. Therefore, the terminal device communicating on the frequency band resources of operator A may be interfered by the communication on the frequency band resources of operator B. That is, it causes interference between the links of different operators.

[0083] It should be understood that a filter is an important device most commonly used in a mobile communication base station and is located at the front end of the radio frequency module. It is a passive, linear, two-port network with frequency selection characteristics. It filters electromagnetic wave signals, allows the required frequency signals to pass through smoothly, and suppresses the unwanted frequency signals. The main purpose is to solve the interference problem between systems of different frequency bands and different systems. The filter presents a matching state to the frequency band signals within the passband and a large mismatch to the frequency signals outside the band, with a large signal reflection attenuation, thereby realizing the spectrum filtering function. By using the frequency selection function of the filter, interference noise can be filtered out or spectrum analysis can be performed. In other words, any device or system that can allow specific frequencies in a signal to pass through while greatly attenuating or suppressing other frequencies is called a filter.

[0084] 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. The bandwidth range of broadband filters is relatively wide, and they can transmit signals within a relatively large broadband range while adjusting and limiting the amplitude of in-band signals. By processing signals with a wide frequency range, they can filter out unwanted frequency components and transmit the desired frequency components to the output port. They usually have a relatively flat passband response and small in-band ripple. On the contrary, narrowband filters have a relatively narrow bandwidth range, can filter out unwanted frequency components, and transmit the desired frequency components to the output port. They usually have relatively steep filtering characteristics and small out-of-band attenuation, and are suitable for applications that require precise filtering.

[0085] Figure 1 The schematic diagram of broadband communication between different operators in the related art is shown, as Figure 1 shown, when the continuous frequency resource Z is jointly occupied by different operators A and B, and the frequency band resources of operator A are distributed on both sides of the frequency band resources of another operator B, the terminal device communicating on the network of operator A with non-continuous frequency resource distribution will filter the received signal with a broadband filter including the continuous frequency resource Z. Since there is a transmitted signal on the frequency of operator B within the filter bandwidth, and this interference signal may cause intermodulation interference or power leakage to the frequency resources of operator A due to non-linear operations in signal reception and processing, resulting in the useful signal on operator A after filtering containing interference from the signals sent by operator B or the terminal devices communicating on the network of operator B. When the power of the signal sent by operator B or its terminal device is relatively large, this interference will cause a significant decline in the demodulation performance of the terminal devices communicating on the network of operator A.

[0086] It should be understood that intermodulation interference is abbreviated as intermodulation interference. It is an interference formed by the non-linear action of a mixer when a useful signal and an interference signal act on the mixer together. A modulated strong interference signal and a useful signal (modulated wave or carrier) act on the mixer at the same time. After non-linear action, the modulation signal of the interference is transferred to the carrier frequency of the useful signal, and then mixed with the local oscillator to obtain an intermediate frequency signal, thus forming interference. Intermodulation interference is a phenomenon in which other modulation frequencies enter the interfered frequency due to the terms of the 3rd or higher order of the transfer function of non-linear devices. The signal power leakage of the spectrum refers to the phenomenon that the signal of operator B appears in the unauthorized frequency band or area (the signal of operator A).

[0087] Exemplarily, as Figure 1As shown, a frequency A on the first resource of two operators A and a frequency B on an operator B may generate the following intermodulation signals: 1st order: A, B; 2nd order: (A + B), (A - B); 3rd order (2A ± B), (2B ± A); 4th order (3A ± B), (3B ± A), (2A ± 2B); 5th order (4A ± B), (4B ± A), (3A ± 2B), (3B ± 2A).

[0088] In summary, when continuous frequency resources are jointly occupied by different operators A and B, and the terminal device in the operator A network filters the received signal with a broadband filter including continuous frequency resource Z, the received signal of the terminal device will be interfered by the frequency resources of operator B. When the power of the signal sent by operator B is relatively large, it will cause the demodulation performance of the terminal device in operator A to decrease. Therefore, how to eliminate the interference of the signal on the frequency resources of operator B to the received signal of the terminal device in operator A is a problem that needs to be solved currently.

[0089] In view of this, the present application provides a method for interference cancellation. The method includes: the network device instructs the terminal device to report and measure the interference from different operators, 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 from different operators is relatively large, resources are allocated in a first resource of the terminal device, and the terminal device is instructed to receive signals using a narrowband filter, so as to avoid strong interference; or the first resources are allocated on both sides of the terminal device, and the terminal device is instructed to receive signals using narrowband filters on both sides, so as to avoid strong interference. When the interference from different operators is relatively small, resources are allocated in two frequency bands of the terminal device, and the terminal device is instructed to receive signals using a broadband filter. Thus, while avoiding interference from different operators, the signal reception rate can also be improved.

[0090] For ease of understanding the embodiments of the present application, first, in combination with Figure 2 introduce the communication system applicable to the embodiments of the present application.

[0091] Figure 2 Fig. shows a schematic diagram of a communication system provided by an embodiment of the present application. As Figure 2 shown, the communication system includes multiple communication devices. For example, network device 210, terminal device 220 and 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. Network device 210 provides services for the terminal devices (terminal device 220 and terminal device 230) within the operator in a specific area; network device 240 provides services for the terminal devices (terminal device 250 and terminal device 260) within the operator in a specific area.

[0092] Among them, data communication can be carried out between the network device 210 and at least one of the terminal device 220 and the terminal device 230. For example, the network device 210 can send the first indication information and the second indication information to the terminal device 220 or the terminal device 230 by using the interference cancellation method provided in this application. Of course, the terminal device 220 or the terminal device 230 can also report the interference measurement result to the network device 210 by using the interference cancellation method provided in this application. Data communication is carried out between the network device 240 and at least one of the terminal device 250 and the terminal device 260. For example, the network device 240 can send the first indication information and the second indication information to the terminal device 250 or the terminal device 260 by using the interference cancellation method provided in this application. Of course, the terminal device 250 or the terminal device 260 can also report the interference measurement result to the network device 240 by using the interference cancellation method provided in this application.

[0093] It should be understood that Figure 2 the shown communication system may further include more network nodes, such as terminal devices or network devices. Figure 2 The network devices or terminal devices included in the shown communication system can be the network devices or terminal devices in the above various forms. The embodiments of this application are not shown one by one in the figure.

[0094] In some embodiments, the network device and the terminal device can also be referred to as a communication device, which can be a general device or a dedicated device. The embodiments of this application do not make specific limitations on this.

[0095] Such as Figure 3 shown, it is a schematic structural diagram of the network device 20 and the terminal device 30 provided by the embodiment of this application.

[0096] Among them, the terminal device 30 includes at least one processor ( Figure 3 exemplarily taking including one processor 301 as an example for description) and at least one transceiver ( Figure 3 exemplarily taking including one transceiver 303 as an example for description). Further, the terminal device 30 may further include at least one memory ( Figure 3 exemplarily taking including one memory 302 as an example for description), at least one output device ( Figure 3 exemplarily taking including one output device 304 as an example for description) and at least one input device ( Figure 3 exemplarily taking including one input device 305 as an example for description).

[0097] The processor 301, the memory 302 and the transceiver 303 are connected by communication lines. The communication lines may include a path for transmitting information between the above components.

[0098] 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 solution 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-CPU processor or a 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).

[0099] The memory 302 may be a device with 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. It may also be 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.), magnetic disk storage media, or other magnetic storage devices, or any other medium that can be used to carry or store the 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 through a communication line. The memory 302 may also be integrated with the processor 301.

[0100] Among them, the memory 302 is used to store the computer execution instructions for executing the solution of the present application, and is controlled by the processor 301 for execution. Specifically, the processor 301 is used to execute the computer execution instructions stored in the memory 302, so as to implement the method described in the embodiments of the present application.

[0101] Alternatively, in the present application, it may also be that the processor 301 executes the functions related to processing in the signal sending and receiving methods provided by the present application, and the transceiver 303 is responsible for communicating with other devices or communication networks. The embodiments of the present application do not make specific limitations on this.

[0102] The computer execution instructions involved in the present application may also be referred to as application code or computer program code. The embodiments of the present application do not make specific limitations on this.

[0103] The transceiver 303 can use any device of the transceiver type for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), or wireless local area networks (WLAN), etc. The transceiver 303 includes a transmitter (Tx) and a receiver (Rx).

[0104] The output device 304 communicates with the processor 301 and can display information in various ways. For example, the 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, etc.

[0105] 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, a keyboard, a touch screen device, or a sensing device, etc.

[0106] The network device 20 includes at least one processor ( Figure 3 exemplarily described by including one processor 201 as an example) and at least one transceiver ( Figure 3 exemplarily described by including one transceiver 203 as an example). Further, the network device 20 may also include at least one memory ( Figure 3 exemplarily described by including one memory 202 as an example) and at least one network interface ( Figure 3 exemplarily described by including one network interface 204 as an example). Among them, the processor 201, the memory 202, the transceiver 203, and the network interface 204 are connected by communication lines. 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 ( Figure 3 not shown in the figure), and the embodiments of the present application do not make specific limitations on this. In addition, the relevant descriptions of the processor 201, the memory 202, and the transceiver 203 can refer to the descriptions of the processor 301, the memory 302, and the transceiver 303 in the terminal device 30, and will not be elaborated here.

[0107] It can be understood that Figure 3The structures shown do not specifically limit the terminal device 30 and the network device 20. For example, in some other embodiments of the present application, the terminal device 30 and the network device 20 may include more or fewer components than those shown in the figure, or combine certain components, or split certain components, or have different component arrangements. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0108] 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. Refer 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.

[0109] Among them, 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. For example, the physical downlink control channel (PDCCH) and the physical uplink control channel (PUCCH) are also used to receive and send uplink and downlink data, such as the physical downlink share channel (PDSCH) and the physical uplink share channel (PUSCH).

[0110] Next, in conjunction with the accompanying drawings, taking the interaction between the network device 20 shown in Figure 3 and any terminal device 30 as an example, the interference cancellation method provided in the embodiments of the present application will be described in detail.

[0111] It should be noted that the names of the messages (or information) or the names of the parameters in the messages (or information) in the following embodiments of the present application are only examples, and in specific implementations, they may also be other names. The embodiments of the present application do not make specific limitations on this.

[0112] It can be understood that in the embodiments of the present application, the terminal device and / or the network device may execute some or all of the steps in the embodiments of the present application. These steps are only examples, and the embodiments of the present application may also execute other steps or various deformations of the steps. In addition, each step may be executed in a different order presented in the embodiments of the present application, and it is possible that not all steps in the embodiments of the present application need to be executed. By way of example and not limitation, the execution entities of each step in the method 500 may also be chips applied to the terminal device and chips applied to the network device.

[0113] In each embodiment of the present application, if there is no special description and logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other. The technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0114] Figure 5 Fig. shows a schematic interaction diagram of a method 500 for interference cancellation provided by an embodiment of the present application. This method can be applied in the above Figure 1 or Figure 2 shown scenarios. Of course, it can also be applied in other communication scenarios, and the embodiments of the present application do not limit this here.

[0115] As Figure 5 shown, Figure 5 the method 500 shown in may include S510 to S550. The following will describe each step in the method 500 in detail with reference to Figure 5 .

[0116] S510. The first network device sends 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.

[0117] In the embodiments of the present application, in order to obtain the interference degree of a different operator on the first terminal device, the first network device may send 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.

[0118] It should be understood that the first network device and the second network device belong to the first operator and the second operator respectively. The first network device provides communication services for the first terminal device in a specific area, the second network device provides communication services for the second terminal device in a specific area, and the first frequency resource includes 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 resource are discontinuous.

[0119] In a possible implementation, the frequency resources occupied by other operators are also included on the first frequency resource. That is, among the discontinuous frequency resources occupied by the first operator on the first frequency resource, the operators accessing may further include a third operator and / or a fourth operator. The embodiments of the present application do not make specific limitations thereto.

[0120] In some embodiments, the second indication information for instructing the first terminal device to measure and report the interference of the second network device on the received signal of the first terminal device may further 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 received signal of the first terminal device, or the interference of other network devices and the terminal devices communicating on other network devices on the received signal of the first terminal device. The embodiments of the present application do not make specific limitations on the interference sources of the received signal of the first terminal device.

[0121] 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.

[0122] Exemplarily, taking Figure 1 as an example, the first network device may instruct the first terminal device to measure the interference of operator B on the received signal of the first terminal device communicating on operator A on operator B, such as measuring the signal transmission power of operator B; the first network device may also instruct the first terminal device to measure the interference of operator B on the received signal of the first terminal device communicating on operator A on operator A, such as measuring the signal leakage power of operator B on operator A. The embodiments of the present application do not make specific limitations on the measurement object and measurement location of the interference signal.

[0123] In another possible implementation, the second indication information sent by the first network device to the first terminal device may further include: the reporting format for the first terminal device to report the interference of the second network device on the received signal of the first terminal device and the time-frequency domain resources occupied by the reporting, etc.

[0124] It should be noted that the second indication information sent by the first network device to the first terminal device may 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.

[0125] It should also be noted that the second indication information may be sent by the first network device through existing signaling or through newly added signaling. The embodiments of the present application do not make specific limitations thereto.

[0126] S520a. The first terminal device measures the interference of the second network device on the first terminal device based on the second indication information.

[0127] S520b. The first terminal device reports the interference measurement result to the first network device.

[0128] In steps S520a and S520b, after receiving the second indication information sent by the first network device, the first terminal device, based on the second indication information, receives the interference signal at the position indicated by the first network device and measures the interference. The interference can be characterized by relevant parameters. For example, it can be the reference signal received power (RSRP), reference signal received quality (RSRQ), or received signal strength indication (RSSI) of the interference signal, etc. Of course, it can also be other power metrics, and the embodiments of the present application do not make specific limitations in this regard.

[0129] Among them, RSRP is defined as the linear average of the power contributions of the resource particles carrying the cell-specific reference signal within the measured bandwidth under investigation. RSRQ refers to the signal-to-noise ratio and interference level of the current channel quality.

[0130] S530. The first network device determines the interference degree of the second network device on the signal received by the first terminal device based on the interference measurement result.

[0131] In the embodiments of the present application, after receiving the interference measurement result reported by the first terminal device, the first network device can determine the interference degree of a different operator or a terminal device communicating on a different operator on the signal received by the first terminal device based on the interference measurement result.

[0132] In some possible implementation manners, when at least one of the metrics of the interference signal, such as RSRP, RSRP, RSSI, is greater than or greater than or equal to the first threshold, it indicates that the interference degree of the second network device on the first terminal device is relatively large.

[0133] In other possible implementation manners, when at least one of the power metrics of the interference signal, such as RSRP, RSRP, RSSI, is less than the first threshold, it indicates that the interference degree of the second network device on the first terminal device is relatively small.

[0134] It should be noted that the first threshold can be predefined by the first network device or predefined by the protocol. The embodiments of the present application do not make specific limitations on the definition manner and value range of the first threshold.

[0135] 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.

[0136] 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.

[0137] It should also be noted that the resources within the first resource can be continuous resources or discontinuous resources, and the embodiments of the present application do not make specific limitations on this.

[0138] In the embodiments of the present application, after the first network device determines the interference degree of the second network device on the received signal of the first terminal device based on the interference measurement result reported by the first terminal device, in order to avoid the interference of the second network device on the received signal of the first terminal device, the first network device may adjust the resource allocation of the first terminal device on at least one first resource of the first frequency resource, and indicate the first filter information used by the first terminal device to receive signals on at least one first resource, and indicate the first antenna information when the first terminal device receives signals on the first resource.

[0139] In some embodiments, 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 the allocated resources on at least one first resource.

[0140] Specifically, the first filter information can be used to indicate that the first terminal device receives signals with one filter bandwidth, or indicate that the first terminal device receives signals with multiple filter bandwidths respectively. The one filter bandwidth can be the frequency resource size of one first resource, the one filter bandwidth can also be the frequency sizes of multiple first resources, or the one filter bandwidth can be the frequency resource size of the allocated resources on one first resource, or the first filter bandwidth can also be the frequency resource sizes of the allocated resources on multiple first resources.

[0141] In a possible implementation manner, there is a first association relationship between the one or more filter bandwidths and the frequency resource size of the first resource or the frequency resource size of the allocated resources on the first resource.

[0142] 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 the same as the frequency center of the first resource, or the first association relationship means 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 the same as the frequency center of the allocated resource of the first resource.

[0143] It should be understood that when the bandwidth of the filter includes two first resources, the filter center 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 filter center 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 filter center is aligned with the center of the frequency resource including the multiple first resources, or when the bandwidth of the filter includes two first resources, the filter center is aligned with the frequency center of the allocated resource including the multiple first resources.

[0144] In a possible implementation, when the interference signal has a large interference on 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 a first resource or the frequency resource size of the allocated resource on a first resource. Or, when the interference signal has a large interference on the received signal of the first terminal device, the first filter signal may include multiple filter bandwidths, and the first association relationship between one filter bandwidth and the frequency resource size of the first resource is that each first filter bandwidth is the frequency resource size of a first resource or the frequency resource size of the allocated resource on a first resource. That is, when the first terminal device receives signals using one or more narrowband filters, the interference of the interference signal on the received signal can be avoided.

[0145] Exemplarily, Figure 6 shows a schematic diagram of interference measurement and resource usage provided by an embodiment of the present application, such as Figure 6As shown in Figure (a), assume that the bandwidth of the first frequency resource Z is 100 Hz. This 100-Hz bandwidth is jointly occupied by the first operator and the second operator. The first operator occupies two non-continuous 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 interference degree of the second network device on the signal received by the first terminal device is relatively large, the first network device can allocate resources into one of the two first resources of the first terminal device. The filter bandwidth indicated by the first network device to the first terminal device can be one, and this one filter bandwidth is the frequency resource size of one first resource, or the bandwidth of this one filter is the frequency resource size of the allocated resource of one first resource.

[0146] Specifically, the first network device allocates resources to the first terminal device within the frequency band of 0 - 30 Hz occupied by the first operator, or the first network device allocates resources to the first terminal device within the frequency band of 70 - 100 Hz occupied by the first operator, and the first network device instructs the first terminal device to use a narrowband filter to receive signals within the frequency band of 0 - 30 Hz or 70 - 100 Hz.

[0147] It should be noted that the above frequency bands are for illustrative purposes and do not constitute a limitation on the solution. The first terminal device may also occupy other frequency bands of the first operator, and the frequency bands occupied by the first terminal device on the first operator can be the same or different.

[0148] It should be noted that in this way, the first terminal device uses one narrowband filter to receive signals, so the interference signals can be filtered out, thus avoiding strong interference from other different operators on the signal received by the first terminal device.

[0149] Or, when the first operator occupies two non-continuous first resources on the first frequency resource, and when the first network device determines that the interference degree of the second network device on the signal received by the first terminal device is relatively large, the first network device can 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 can be two, and the bandwidth of each filter is the frequency resource size of one first resource, or the bandwidth of each filter is the frequency resource size of the allocated resource of one first resource, or the first network device can 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.

[0150] Specifically, the first network device allocates resources to the first terminal device respectively within the frequency bands of 0 - 30 Hz and 70 - 100 Hz occupied by the first operator, and the first network device instructs the first terminal device to use two narrowband filters to receive signals within the frequency bands of 0 - 30 Hz and 70 - 100 Hz respectively.

[0151] It should be noted that in this method, since the first network device allocates resources to two frequency bands of the first terminal device respectively, the first filter information includes two filter bandwidths, and the first terminal device uses the two filter bandwidths to receive signals within different frequency bands respectively. Since both frequency bands use narrowband filters to receive signals, the interference signal of the second network device can be filtered out, thereby avoiding strong interference of the second network device on the signal received by the first terminal device.

[0152] In some other embodiments, when the interference of the interference signal on the signal received by the first terminal device is small, the first filter signal may include one filter bandwidth, and this filter bandwidth is the frequency resource size of multiple first resources or the frequency resource size of the allocated resources on multiple first resources.

[0153] Exemplarily, as Figure 6 shown in Figure (b) of, when the first operator occupies two non - continuous first resources on the first frequency resource, and the interference degree of the second network device on the signal received by the first terminal device is small, the first network device may allocate resources to two first resources of the first terminal device, and the first filter information indicated to the first terminal device includes one filter bandwidth, and this filter bandwidth includes the frequency resource size of multiple first resources.

[0154] Specifically, the first network device allocates resources to the first terminal device respectively within the frequency bands of 0 - 30 Hz and 70 - 100 Hz occupied by the first operator, and the first network device instructs the first terminal device to use a broadband filter to receive signals within the frequency band of 0 - 100 Hz. In this implementation manner, the first terminal device makes full use of the large bandwidth to improve the transmission rate.

[0155] It should be understood that in the Figure 6 example, the first operator 1 and the first operator 2 are the same operator.

[0156] Again, for example, Figure 7 shows another schematic diagram of interference measurement and resource usage provided by the embodiments of the present application, as Figure 7As shown in Figure (a), there are 4 resources on the first frequency resource. Among them, the interference between the first operator 1 and the second operator 1 is weak, the interference between the second operator 1 and the first operator 2 is strong, and the interference between the first operator 2 and the second operator 2 is weak. Then, the filter bandwidth indicated by the first network device to the first terminal device can be two. The two filter bandwidths are respectively the sum of the frequency resource sizes occupied by the first operator 1 and the second operator 1, and the sum of the frequency resource sizes occupied by the first operator 2 and the second operator 2. Or the filter bandwidth indicated by the first network device to the first terminal device is one, and it is predefined that the first bandwidth can receive signals on two frequency bands, that is, the first network device indicates a bandwidth that is the sum of the frequency resource sizes occupied by the first operator 1 and the second operator 1, and it is predefined that this bandwidth can also receive signals on the first operator 2 and the second operator 2.

[0157] As Figure 7 As shown in Figure (b), there are 4 resources on the first frequency resource. Among them, the interference between the first operator 1 and the second operator 1 is strong, the interference between the second operator 1 and the first operator 2 is weak, and the interference between the first operator 2 and the second operator 2 is weak. Then, the filter bandwidth indicated by the first network device to the first terminal device can be two. The two filter bandwidths are respectively the frequency resource size occupied by the first operator 1, and the sum of the frequency resource sizes occupied by the second operator 1, the first operator 2, and the second operator 2.

[0158] As Figure 7 As shown in Figure (c), there are 4 resources on the first frequency resource. Among them, the interference between the first operator 1 and the second operator 1 is strong, the interference between the second operator 1 and the first operator 2 is weak, and the interference between the first operator 2 and the second operator 2 is strong. Then, the filter bandwidth indicated by the first network device to the first terminal device can be three. The three filter bandwidths are respectively the frequency resource size occupied by the first operator 1, the sum of the frequency resource sizes occupied by the second operator 1 and the first operator 2, and the frequency resource size occupied by the second operator 2.

[0159] As Figure 7As shown in Figure (d), there are 4 resources on the first frequency resource. Among them, 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. Then, the filter bandwidth indicated by the first network device to the first terminal device can be four, and the sizes of the frequency resources occupied by the four filter bandwidths are all those of the first operator 1. Alternatively, the filter bandwidth indicated by the first network device to the first terminal device is one, and it is predefined that this one filter bandwidth can receive signals on other frequency bands.

[0160] It should be understood that in Figure 7 the example, the first operator 1 and the first operator 2 are the same operator. The second operator 1 and the second operator 2 can be different operators. For example, the second operator 1 can also be the third operator, and the second operator 2 can also be the fourth operator. The embodiments of the present application do not make specific limitations on this.

[0161] For another example, Figure 8 Figure (a) shows another schematic diagram of interference measurement and resource use provided by the embodiments of the present application. As Figure 8 shown in Figure (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 respectively use filter 1 and filter 2 to receive signals; 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. Therefore, 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 respectively 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.

[0162] Moreover, the first network device respectively instructs the first terminal device to receive signals on the first resource 1 of the first carrier 1 using the first bandwidth (the frequency resource size of the first resource), to receive signals on the first resource 2 of the second carrier 2 and the first resource 3 of the third carrier 3 using the second bandwidth (the sum of the frequency resource sizes occupied by the second carrier 2, the second carrier 2, and the third carrier 3), and to receive signals on the first resource 4 of the fourth carrier 4 using the first bandwidth (the frequency resource size of the first resource); alternatively, the first network device instructs the first terminal device to receive signals on the first resource 1 of the first carrier 1 and the first resource 4 of the fourth carrier 4 using the first bandwidth (the frequency resource size of the first resource), and to receive signals on the first resource 2 of the second carrier 2 and the first resource 3 of the third carrier 3 using the second bandwidth.

[0163] As Figure 8 shown in figure (b) of [[ID=]], when the second carrier 1 is a strong interference to at least one of the first carrier 1 and the second carrier 2, or when the signal transmission power of the second carrier 1 is relatively large, the first resource 1 of the first carrier 1 and the first resource 2 of the second carrier 2 respectively use filter 1 and filter 2 to receive signals. When the second carrier 2 is a weak interference to the second carrier 2 and the third carrier 3, the first resource 2 of the second carrier 2 and the first resource 3 of the third carrier 3 can use the same filter to receive signals. When the third carrier 3 is a weak interference to the third carrier 3 and the fourth carrier 4, the first resource 3 of the third carrier 3 and the first resource 4 of the fourth carrier 4 can use the same filter to receive signals. Therefore, the first resource 2 of the second carrier 2, the first resource 3 of the third carrier 3, and the first resource 4 of the fourth carrier 4 can use filter 2 to receive signals.

[0164] Moreover, the first network device respectively instructs the first terminal device to receive signals on the first resource 1 of the first carrier 1 using the first bandwidth (the frequency resource size of the first resource), and to receive signals on the first resource 2 of the second carrier 2, the first resource 3 of the third carrier 3, and the first resource 4 of the fourth carrier 4 using the third bandwidth (the sum of the frequency resource sizes respectively occupied by the second carrier 2, the second carrier 2, the third carrier 3, the third carrier 3, and the fourth carrier 4).

[0165] As Figure 8As shown in Figure (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 relatively large, the first resource 1 of the first operator 1 and the first resource 2 of the first operator 2 receive signals using filter 1 and filter 2 respectively; 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 relatively large, the first resource 2 of the first operator 2 and the first resource 3 of the first operator 3 receive signals using filter 2 and filter 3 respectively; 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 relatively large, the first resource 3 of the first operator 3 and the first resource 4 of the first operator 4 receive signals using filter 3 and filter 4 respectively.

[0166] Moreover, the first network device respectively 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), receive signals on the first resource 2 of the first operator 2 using the first bandwidth (the frequency resource size of the first resource), receive signals on the first resource 3 of the first operator 3 using the first bandwidth (the frequency resource size of the first resource), and receive signals on the first resource 4 of the first operator 4 using the first bandwidth (the frequency resource size of the first resource); or, the first network device instructs the first terminal device 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 using the first bandwidth (the frequency resource size of the first resource).

[0167] As Figure 8 shown in Figure (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 receive signals using the same filter, 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 receive signals using the same filter, 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 receive signals using the same filter, 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 receive signals using the same filter 1.

[0168] Moreover, the first network device instructs the first terminal device to receive signals on the first resource 1 of the first carrier 1, the first resource 2 of the first carrier 2, the first resource 3 of the first carrier 3, and the first resource 4 of the first carrier 4 by using the fourth bandwidth (the sum of the frequency resource sizes occupied by the first carrier 1, the second carrier 1, the first carrier 2, the second carrier 2, the first carrier 3, the second carrier 3, and the first carrier 4 respectively).

[0169] As Figure 8 shown in figure (e) of [], when the second carrier 1 has weak interference on the first carrier 1 and the first carrier 2, the first resource 1 of the first carrier 1 and the first resource 2 of the first carrier 2 can receive signals using the same filter 1. When the second carrier 2 has strong interference on at least one of the first carrier 2 and the first carrier 3, or when the signal transmission power of the second carrier 2 is relatively large, the first resource 2 of the first carrier 2 and the first resource 3 of the first carrier 3 receive signals using filter 1 and filter 2 respectively. When the second carrier 3 has weak interference on the first carrier 3 and the first carrier 4, the first resource 3 of the first carrier 3 and the first resource 4 of the first carrier 4 can receive signals using the same filter 2.

[0170] Moreover, the first network device instructs the first terminal device to receive signals on the first resource 1 of the first carrier 1 and the first resource 2 of the first carrier 2 by using the fifth bandwidth (the sum of the frequency resource sizes occupied by the first carrier 1, the second carrier 1, and the first carrier 2 respectively). The first network device instructs the first terminal device to receive signals on the first resource 3 of the first carrier 3 and the first resource 4 of the first carrier 4 by using the sixth bandwidth (the sum of the frequency resource sizes occupied by the first carrier 3, the second carrier 3, and the first carrier 4 respectively).

[0171] As Figure 8 shown in figure (f) of [], when the second carrier 1 has strong interference on at least one of the first carrier 1 and the first carrier 2, or when the signal transmission power of the second carrier 1 is relatively large, the first resource 1 of the first carrier 1 and the first resource 2 of the first carrier 2 receive signals using filter 1 and filter 2 respectively. When the second carrier 2 has strong interference on at least one of the first carrier 2 and the first carrier 3, or when the signal transmission power of the second carrier 2 is relatively large, the first resource 2 of the first carrier 2 and the first resource 3 of the first carrier 3 receive signals using filter 2 and filter 3 respectively. When the second carrier 3 has weak interference on the first carrier 3 and the first carrier 4, the first resource 3 of the first carrier 3 and the first resource 4 of the first carrier 4 can receive signals using the same filter 3.

[0172] Moreover, the first network device respectively 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 second 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 third operator 3 and the first resource 4 of the fourth operator 4 using the sixth bandwidth (the sum of the frequency resource sizes respectively occupied by the third operator 3, the second operator 3, and the fourth operator 4). 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 second 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 third operator 3 and the first resource 4 of the fourth operator 4 using the sixth bandwidth.

[0173] As Figure 8 shown in figure (g) of [], when the second operator 1 is a weak interference to the first operator 1 and the second operator 2, the first resource 1 of the first operator 1 and the first resource 2 of the second operator 2 can receive signals using the same filter. When the second operator 2 is a weak interference to the second operator 2 and the third operator 3, the first resource 2 of the second operator 2 and the first resource 3 of the third operator 3 can receive signals using the same filter 1, that is, the first resource 1 of the first operator 1, the first resource 2 of the second operator 2, and the first resource 3 of the third operator 3 can receive signals using the same filter 1. When the second operator 3 is a strong interference to at least one of the third operator 3 and the fourth operator 4, or the signal transmission power of the second operator 3 is relatively large, the first resource 3 of the third operator 3 and the first resource 4 of the fourth operator 4 respectively use filter 1 and filter 2 to receive signals.

[0174] Moreover, the first network device instructs the first terminal device to receive signals on the first resource 1 of the first operator 1, the first resource 2 of the second operator 2, and the first resource 3 of the third operator 3 using the seventh bandwidth (the sum of the frequency resource sizes respectively occupied by the first operator 1, the second operator 1, the first operator 2, the second operator 2, and the third operator 3). The first network device instructs the first terminal device to receive signals on the first resource 4 of the fourth operator 4 using the first bandwidth (the frequency resource size of the first resource).

[0175] As Figure 8As shown in Figure (h), 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 when the signal transmission power of the second operator 2 is relatively 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 when the signal transmission power of the second operator 3 is relatively 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.

[0176] Moreover, the first network device respectively 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) to receive signals on the first resource 1 of the first operator 1 and the first resource 2 of the first operator 2, 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 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 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 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.

[0177] It should be understood that in Figure 8 the example, the first operator 1, the first operator 2, the first operator 3, and the first operator 4 are the same operator. The second operator 1, the second operator 2, and the second operator 3 can be different operators. For example, the second operator 2 can also be the third operator, and the second operator 3 can also be the fourth operator. The embodiments of the present application do not make specific limitations on this.

[0178] In summary, 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 conditions 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 positions occupied by the strong interferences. When there is strong interference between two allocated resources, different filters are required to receive signals between these two allocated resources. When there is no strong interference between two allocated resources, the same filter can be used to receive signals between these two allocated resources. 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 the interference of other network devices on the signals received by the first terminal device.

[0179] 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 can include, for example, RRC, MAC - CE, RLC signaling, etc. Physical layer signaling can include, for example, DCI, signaling transmitted through the down - link physical channel, etc. The down - link physical channel can 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 can also be pre - defined by the protocol. The embodiments of the present application do not specifically limit the manner in which the first terminal device obtains the resource allocation situation.

[0180] Based on the above steps S510 - S540, the first network device can instruct the first terminal device to measure and report the interference degree of the second network device on the first terminal device. The first network device determines the resource allocation situation of the first terminal device according to the interference degree and instructs the first terminal device to use a wide - band filter or a narrow - band filter to receive signals, so as to avoid the interference of the second network device on the first terminal device when the first terminal device receives signals.

[0181] In some other embodiments of the present application, the first network device can also indicate the multi - antenna related information of the first terminal device for resource allocation in different frequency bands according to the resource allocation situation of the first terminal device and the usage situation of wide - and - narrow filters. That is, the first indication information sent by the first network device to the first terminal device can also include the first antenna information. The first antenna information is applied to at least one first resource or the allocated resources of at least one first resource. This implementation method can further improve the signal reception performance of the first terminal device.

[0182] In a possible implementation, the first antenna information includes an antenna port, precoding information, transmission configuration indication (TCI), sounding reference signal (SRS), and demodulation reference signal (DMRS) sequence initialization information, etc. Of course, the first antenna-related information may also include other relevant information, which is not specifically limited in the embodiments of the present application.

[0183] It should be noted that the number of the first antenna information includes one or more.

[0184] It should be understood that the antenna port information indicates the antenna port used for data transmission and the antenna ports used by other terminals. In the related art, all resources indicated by one 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 the SSB signal and the CSI-RS signal) beam configured by the base station the downlink data beam is the same as (indicating the downlink beam). In the related art, all resources indicated by one DCI use the same TCI; the SRS request indicates the sounding reference signal transmission request. If the UE is instructed to use SRS, the base station can directly obtain the uplink channel information by receiving the SRS. In the related art, one DCI indicates one SRS transmission; the DMRS sequence initialization information is used to select two pre-configured DMRS sequence initial values.

[0185] In the embodiments of the present application, if 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 through one DCI respectively the antenna ports used for data transmission on the resources on both sides and the antenna ports used by other terminals, and the first network device needs to indicate through one DCI respectively the TCI on the resources on both sides, and the first network device needs to indicate through one DCI respectively the SRS transmission and the DMRS sequence initialization information on the resources on both sides.

[0186] Optionally, the one or more first antenna information has a second association relationship with the first resource or the allocated resources on the first resource.

[0187] For example, as Figure 6As shown in Figure (a) therein, when the first network device instructs the first terminal device to receive signals using a filter with a frequency resource size of the first resource having a bandwidth size, the first network device instructs the first terminal device with a first antenna information. Or, when the first network device instructs the first terminal device to receive signals using two filters with a frequency resource size of the first resource having a bandwidth size, the first network device instructs the first terminal device with two first antenna information. As Figure 6 As shown in Figure (b) therein, when the first network device instructs the first terminal device to receive signals using a filter with a bandwidth size equal to the sum of the frequency resource sizes occupied by the first carrier 1, the second carrier 1, and the first carrier 2 respectively, the first network device instructs the first terminal device with a first antenna information.

[0188] For another example, as Figure 7 As shown in Figure (a) therein, when the first network device instructs the first terminal device to receive signals using two filters with bandwidths respectively equal to the sum of the frequency resource sizes occupied by the first carrier 1 and the second carrier 1, and the sum of the frequency resource sizes occupied by the first carrier 2 and the second carrier 2, the first network device instructs the first terminal device with two first antenna information; as Figure 7 As shown in Figure (b) therein, when the first network device instructs the first terminal device to receive signals using a filter with a frequency resource size of the first resource having a bandwidth size and a filter with a bandwidth size equal to the sum of the frequency resource sizes occupied by the second carrier 1, the first carrier 2, and the second carrier 2, the first network device instructs the first terminal device with two first antenna information; as Figure 7 As shown in Figure (c) therein, when the first network device instructs the first terminal device to receive signals using two filters with a frequency resource size of the first resource having a bandwidth size and a filter with a bandwidth size equal to the sum of the frequency resource sizes occupied by the second carrier 1 and the first carrier 2, the first network device instructs the first terminal device with three first antenna information; as Figure 7 As shown in Figure (d) therein, when the first network device instructs the first terminal device to receive signals using four filters with a frequency resource size of the first resource having a bandwidth size, the first network device instructs the first terminal device with four first antenna information.

[0189] For another example, as Figure 8As shown in Figure (a), when the first network device instructs the first terminal device to receive signals using filters with two first bandwidths and receive signals using one second - bandwidth filter, the first network device may instruct the first terminal device with three first - antenna information, where each of the two first - bandwidth filters and one second - bandwidth filter uses one first - antenna information; or the first network device may also instruct the first terminal device with two first - antenna signals, where one first - antenna information is used by the two first - bandwidth filters and one first - antenna information is used by the one second - bandwidth filter.

[0190] As Figure 8 As shown in Figure (b), when the first network device instructs the first terminal device to receive signals using one first - bandwidth filter and one third - bandwidth filter respectively, the first network device may instruct the first terminal device with two first - antenna information, that is, each of the one first - bandwidth filter and one third - bandwidth filter uses one first - antenna information.

[0191] As Figure 8 As shown in Figure (c), when the first network device instructs the first terminal device to receive signals using four first - bandwidth filters respectively, the first network device may instruct the first terminal device with four first - antenna information, that is, each of the four first - bandwidth filters uses one first - antenna information; or, the first network device may also instruct the first terminal device with one first - antenna information, that is, the four first - bandwidth filters use one first - antenna information.

[0192] As Figure 8 As shown in Figure (d), when the first network device instructs the first terminal device to receive signals using one fourth - bandwidth filter, the first network device may instruct the first terminal device with one first - antenna information.

[0193] As Figure 8 As shown in Figure (e), when the first network device instructs the first terminal device to receive signals using one fifth - bandwidth filter and one sixth - bandwidth filter, the first network device may instruct the first terminal device with two first - antenna information, that is, the fifth - bandwidth filter and the sixth - bandwidth filter respectively use one first - antenna information to receive signals.

[0194] As Figure 8As shown in Figure (f), when the first network device instructs the first terminal device to receive signals using two filters with the first bandwidth and one filter with the sixth bandwidth, the first network device may instruct the first terminal device with three first antenna information, that is, each of the two filters with the first bandwidth and the one filter with the sixth bandwidth uses one first antenna information to receive signals; or, the first network device instructs the first terminal device with two first antenna information, that is, the two filters with the first bandwidth use one first antenna information, and the one filter with the sixth bandwidth uses one first antenna information.

[0195] As Figure 8 As shown in Figure (g), when the first network device instructs the first terminal device to receive signals using one filter with the seventh bandwidth and one filter with the first bandwidth, the first network device may instruct the first terminal device with two first antenna information, that is, each of the one filter with the seventh bandwidth and the filter with the first bandwidth uses one first antenna information to receive signals.

[0196] As Figure 8 As shown in Figure (h), when the first network device instructs the first terminal device to receive signals using one filter with the fifth bandwidth and two filters with the first bandwidth, the first network device may instruct the first terminal device with three first antenna information, that is, each of the one filter with the fifth bandwidth and the two filters with the first bandwidth uses one first antenna information to receive signals. Or, the first network device instructs the first terminal device with two first antenna information, that is, the one filter with the fifth bandwidth uses one first antenna information, and the two filters with the first bandwidth use one first antenna information.

[0197] Combined with Figure 6 Taking the example shown in Figure (a), in a possible implementation manner of this 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 receive signals using a narrowband filter, the first terminal device may use all antennas to receive signals. For example, if the first terminal device includes 12 antennas and each 3 antennas form an antenna port, 4 antenna ports can be used to receive signals.

[0198] Combined with Figure 6 Taking the example shown in Figure (b), in another possible implementation manner of this application, when the first network device allocates resources to the first terminal device in the two first resources respectively and instructs the first terminal device to receive signals using two narrowband filters, the first network device instructs the first terminal device that the allocated resources in the two first resources or on the two first resources correspond to different antenna ports, and the sum of the antenna port numbers corresponding to the allocated resources in the two first resources or on the two first resources is less than or less than or equal to the maximum antenna port number of the first device.

[0199] For example, the first terminal device includes 12 antennas. Every 3 antennas form an antenna port, and a total of 4 antenna ports are included. 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, use port 1 to receive the signal on one first resource and use port 2 to receive the signal on the other first resource; or use port 1 to receive the signal on one first resource and use ports 2 and 3 to receive the signal on the other first resource; or use port 1 to receive the signal on one first resource and use ports 2, 3, and 4 to receive the signal on the other first resource. The embodiments of the present application do not specifically limit the allocation method of antenna ports.

[0200] It should be noted that since the first network device allocates resources to the first terminal device in two first resources respectively and instructs the first terminal device to receive signals using two narrowband filters, the maximum number of streams of each signal is limited and cannot reach the maximum number of streams. Therefore, the first network device can instruct the first terminal device about 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 the number of antenna ports is less than or equal to the number of physical antennas, that is, one antenna port can be composed of multiple antennas.

[0201] Or, when the first network device allocates resources to the first terminal device in two first resources respectively and instructs the first terminal device to receive signals using a broadband filter, the first network device can instruct the first terminal device to use all antennas to receive signals, thereby improving the signal transmission efficiency. For example, when the first terminal device includes 12 antennas and every 3 antennas form an antenna port, 4 antenna ports can be used to receive signals.

[0202] In the above embodiments, the first network device instructs 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 some other embodiments, the first terminal device can also obtain the first filter information and the first antenna information and the like by means of protocol predefinition. For example, the association relationship between the resource allocation situation and the first filter information and the first antenna information can be predefined, so that when the first terminal device obtains the resource allocation situation, it can obtain the first filter information and the first antenna information. Exemplarily, the association relationship can include the following several types:

[0203] 1. Use a narrowband filter for unilateral resource allocation and a broadband filter for bilateral resource allocation.

[0204] 2. For single-sided resource allocation, a narrowband filter is used; for double-sided resource allocation, a narrowband filter is used, the antenna ports are evenly divided, and the same other multi-antenna related information is used on both sides.

[0205] 3. For single-sided resource allocation, a narrowband filter is used; for double-sided resource allocation, a narrowband filter is used, the antenna ports are evenly divided, and a new signaling is used to indicate other multi-antenna related information.

[0206] 4. For single-sided resource allocation, a narrowband filter is used; for double-sided resource allocation, a narrowband filter is used, and a new signaling is used to indicate multi-antenna related information.

[0207] Specifically, when the resource allocation situation obtained by the first terminal device is single-sided resource allocation, a narrowband filter is used to receive signals on a first resource; or when the resource allocation situation obtained by the first terminal device is double-sided 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 double-sided resource allocation, two narrowband filters are used to receive signals on two first resources respectively, and the first antenna information is reused on both sides; or when the resource allocation situation obtained by the first terminal device is double-sided 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.

[0208] Alternatively, in order to reduce signaling overhead, in some other embodiments, the first terminal device can also obtain the first filter information and the first antenna information in the form of a predefined table. Each row in the table corresponds to an association relationship, and a new signaling uses bits to indicate which predefined relationship to use.

[0209] Exemplarily, the association relationship can include the following several types:

[0210] 1. For single-sided resource allocation, a narrowband filter is used; for double-sided resource allocation, a broadband filter is used.

[0211] 2. For single-sided resource allocation, a narrowband filter is used; for double-sided resource allocation, a narrowband filter is used, and the same multi-antenna related information is used on both sides.

[0212] 3. For single-sided resource allocation, a narrowband filter is used; for double-sided resource allocation, a narrowband filter is used, the antenna ports are evenly divided (by serial number, for example, ports 1-2 are assigned to the left side, and 3-4 are assigned to the right side), and the same other multi-antenna related information is used on both sides.

[0213] 4. For single-sided resource allocation, a narrowband filter is used; for double-sided resource allocation, a narrowband filter is used, the antenna ports are evenly divided, and a new signaling is used to indicate other multi-antenna related information.

[0214] 5. For single-sided resource allocation, a narrowband filter is used; for double-sided resource allocation, a narrowband filter is used, and a new signaling is added to indicate multi-antenna related information.

[0215] 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 in the first frequency resource, first filter information for receiving signals on at least one first resource, or first antenna information for receiving signals on at least one first resource.

[0216] In step S550, the first terminal device may determine, based on the first indication information of the first terminal device, the resource allocation information on at least one first resource in the first frequency resource, and / or the first filter information for receiving signals on at least one first resource, and / or the first antenna information for receiving signals on at least one first resource, so as to avoid interference from other operators when receiving signals.

[0217] Based on the above method 500, the first network device may adjust the allocation position of the frequency resource for the first terminal device and indicate the first filter information and the first antenna information for the first terminal device to receive signals, so that the first terminal device can obtain the resource allocation position on at least one first resource, and the filter information for receiving signals on at least one first resource or the first antenna information for receiving signals on at least one first resource, thereby eliminating the interference from other operators to the first terminal device when receiving signals.

[0218] It should be understood that the division of the manners, situations, categories, and embodiments in the embodiments of the present application is only for the convenience of description and should not constitute a special limitation. The features in various manners, categories, situations, and embodiments can be combined without conflict.

[0219] It should also be understood that the above is only to help those skilled in the art better understand the embodiments of the present application, rather than to limit the scope of the embodiments of the present application. Those skilled in the art can clearly make various equivalent modifications or changes according to the above examples given. For example, some steps in the above method 500 may not be necessary, or some steps may be newly added, etc. Or any combination of any two or any more of the above embodiments. The solutions after such modifications, changes, or combinations also fall within the scope of the embodiments of the present application.

[0220] It should also be understood that the above description of the embodiments of the present application focuses on emphasizing the differences between the embodiments. The same or similar parts not mentioned can be referred to each other. For the sake of brevity, they will not be elaborated here.

[0221] It should also be understood that the magnitudes of the sequence numbers of the above processes do not imply the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0222] It should also be understood that in the embodiments of the present application, "predetermined" and "predefined" can be implemented by pre-saving corresponding codes, tables or other means that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit its specific implementation manner.

[0223] It should also be understood that in various embodiments of the present application, if there is no special description and 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.

[0224] The above has introduced in detail the method examples for interference cancellation provided by the present application. It can be understood that in order for the first network device and the first terminal device to implement the above functions, they include the corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should easily realize that, combining the units and algorithm steps of each example described in the embodiments disclosed in this article, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0225] Next, the communication device provided by the present application will be introduced.

[0226] Exemplarily, Figure 9 FIG. shows a schematic block diagram of a communication device 900 provided by an embodiment of the present application. The communication device 900 can correspond to the first network device described in each embodiment of the above method 500, or can be a chip or component applied to the first network device, and each module or unit in the communication device 900 is respectively used to execute each action or processing process executed by the first network device described in each embodiment of the above method 500.

[0227] As Figure 9 shown, the communication device 900 includes a transceiver unit 910 and a processing unit 920. The transceiver unit 910 is used to perform specific signal transceiver under the drive of the processing unit 920.

[0228] In some embodiments:

[0229] A transceiver unit 910 is configured to send first indication information to a 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 a 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.

[0230] The communication device provided in this application can adjust the allocation position of the frequency resource for the first terminal device and indicate the first filter information and the first antenna information for the first terminal device to receive signals, 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 signals on at least one first resource or the first antenna information for receiving signals on at least one first resource, thereby eliminating the interference of a different operator to the first terminal device for receiving signals.

[0231] 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 the allocated resources on at least one first resource.

[0232] Optionally, there is a first association relationship between the one or more filter bandwidths and the first resource or the allocated resources on the first resource.

[0233] 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 the first antenna information is one or more, and the first antenna information is applied to at least one first resource or the allocated resources of at least one first resource.

[0234] Optionally, there is a second association relationship between the one or more first antenna information and the first resource or the allocated resources on the first resource.

[0235] Optionally, when the interference is 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 the 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 resources on one first resource.

[0236] Optionally, when the interference is greater than or equal to a first threshold, resource allocation on at least one first resource of a first frequency resource includes: allocating resources on two first resources among a plurality of 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 resources on one first resource, wherein the two first resources respectively correspond to one first antenna information.

[0237] Optionally, the two first resources or the allocated resources on the two first resources correspond to different antenna ports.

[0238] 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 a first terminal device.

[0239] Optionally, the transceiver unit 910 is further configured to 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 the interference of the second network device on the 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, the first frequency resource includes 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 resource are discontinuous.

[0240] It should be understood that for the specific processes of the units in the communication device 900 to execute the above corresponding steps, please refer to the descriptions related to the first network device in the foregoing in combination with method 500 and Figure 2 and Figure 5 the relevant embodiments in. For example, the transceiver unit 910 may execute the steps related to reception and transmission in the above method embodiments, and the processing unit 920 may execute the steps other than reception and transmission. Various specific processes are as described in the method embodiments. For the sake of brevity, no further elaboration is provided here.

[0241] It should be understood that the communication device may further include a storage unit, and the storage unit is used to store 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 mutually coupled. The storage unit stores instructions, the processing unit 920 is configured to execute the instructions stored by the storage unit, and the transceiver unit 910 is configured to perform specific signal reception and transmission under the drive of the processing unit 920.

[0242] 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 FIG. shows a schematic block diagram of another example communication device 1000 provided in an embodiment of the present application. As Figure 10As shown, the communication device 1000 may include a processor 1010, a memory 1020, and a transceiver 1030.

[0243] Figure 9 The communication device 900 shown or Figure 10 The communication device 1000 shown can implement the steps performed by the first network device in the foregoing method 500. Similar descriptions can refer to the descriptions in the foregoing corresponding methods. To avoid repetition, they are not elaborated here.

[0244] It should also be understood that Figure 9 The communication device 900 shown or Figure 10 The communication device 1000 shown can be the first network device.

[0245] Figure 11 The schematic block diagram of the communication device 1100 according to the embodiment of the present application is shown. The communication device 1100 can correspond to the first terminal device described in the foregoing method 500, or can be a chip or component applied to the first terminal device. Moreover, each module or unit in the communication device 1100 is respectively used to execute each action or processing process performed by the first terminal device in the foregoing method 500.

[0246] As Figure 11 shown, the communication device 1100 may include a transceiver unit 1110 and a processing unit 1120. The transceiver unit 1110 is used to perform specific signal transceiver under the drive of the processing unit 1120.

[0247] In some embodiments:

[0248] The transceiver unit 1110 is used to receive the first indication information sent by the first network 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 in 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.

[0249] The 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 in the first frequency resource, first filter information for receiving signals on at least one first resource, or first antenna information for receiving signals on at least one first resource.

[0250] The communication device provided by this application can receive the allocation positions of frequency resources on at least one first resource, the first filter information when receiving signals on at least one first resource, and the first antenna information when receiving signals on at least one first resource. Based on the resource allocation positions on at least one first resource, and the filter information or the first antenna information when receiving signals on at least one first resource, the first terminal device can eliminate the interference from different operators when receiving signals.

[0251] Optionally, the first frequency resource includes a plurality of first resources, and any two first resources are discontinuous.

[0252] Optionally, the first filter information includes one or more filter bandwidths, and one or more filter bandwidths include the frequency resource size of at least one first resource or the frequency resource size of the allocated resources on at least one first resource.

[0253] Optionally, there is a first association relationship between one or more filter bandwidths and the first resource or the allocated resources on the first resource.

[0254] 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 the first antenna information is one or more, and the first antenna information is applied to at least one first resource or the allocated resources of at least one first resource.

[0255] Optionally, there is a second association relationship between one or more first antenna information and the first resource or the allocated resources on the first resource.

[0256] Optionally, when the interference is greater than or equal to the first threshold, the resource allocation on at least one first resource of the first frequency resource includes: allocating resources on one first resource among the 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 resources on one first resource.

[0257] Optionally, when the interference is greater than or equal to the 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 one first resource or the frequency resource size of the allocated resources on one first resource, where the two first resources respectively correspond to one first antenna information.

[0258] Optionally, the two first resources or the allocated resources on the two first resources correspond to different antenna ports.

[0259] Optionally, the sum of the number of antenna ports corresponding to two first resources or the allocated resources on two first resources is less than or less than or equal to the maximum number of antenna ports of the first terminal device.

[0260] Optionally, the transceiver unit 1110 is further configured to receive second indication information sent by the first network device.

[0261] Optionally, the transceiver unit 1110 is further configured 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, the first frequency resource includes 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 resource are discontinuous.

[0262] It should be understood that for the specific processes of each unit in the communication device 1100 to execute the corresponding steps above, please refer to the description related to the terminal device in the relevant embodiments of method 500 in the foregoing text. For example, the transceiver unit 1110 may execute the steps related to receiving and sending in the foregoing method embodiments, and the processing unit 1120 may execute the steps other than processing and transceiver. Various specific processing methods are as described in the method embodiments. For the sake of brevity, no further elaboration is provided here.

[0263] Optionally, the transceiver unit 1110 may include a receiving unit (module) and a sending unit (module), and is configured to execute the steps of the first terminal device receiving information and sending information in each embodiment of the foregoing method 500.

[0264] 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 FIG. shows a schematic block diagram of another example communication device 1200 provided in an embodiment of the present application. As Figure 12 shown, the communication device 1200 may include a processor 1210, a memory 1220, and a transceiver 1230.

[0265] Figure 11 The communication device 1100 shown or Figure 12 The communication device 1200 shown is capable of implementing the steps executed by the first terminal device in the embodiments of the foregoing method 500. Similar descriptions may refer to the descriptions in the corresponding methods foregoing. To avoid repetition, no further elaboration is provided here.

[0266] It should also be understood that Figure 11 The communication device 1100 shown or Figure 12 The communication device 1200 shown may be a terminal device.

[0267] It should also be understood that the division of units in the above device is only a division of logical functions. In actual implementation, they can be fully or partially integrated into a physical entity, or physically separated. And the units in the device can all be implemented in the form of software called by a processing element; they can also all be implemented in the form of hardware; or some units can be implemented in the form of software called by a processing element, and some units can be implemented in the form of hardware. For example, each unit can be a separately established processing element, or can be integrated in a certain chip of the device. In addition, it can also be stored in the memory in the form of a program and called and executed by a certain processing element of the device to perform the functions 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 of the above units can be implemented through the integrated logic circuit of the hardware in the processor element or in the form of software called by the processing element.

[0268] In one example, the units in any of the above devices can be one or more integrated circuits configured to implement the above method. For example: 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. Again, when the units in the device can be implemented in the form of a processing element scheduling program, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call programs. Again, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0269] Figure 13 The figure is a schematic structural diagram of a terminal device 1300 provided by this application, which can be used to implement the functions of the first terminal device in the above method. The above communication device 1100 or communication device 1200 can be configured in the terminal device 1300. Or, the communication device 1100 or communication device 1200 itself can be the terminal device 1300. Or rather, the terminal device 1300 can perform the actions executed by the first terminal in the above method 500. Optionally, for ease of description, Figure 13 only the main components of the terminal device are shown. As Figure 13 shown, the terminal device 1300 includes a processor, a memory, a control circuit, an antenna, and an input / output device.

[0270] The processor is mainly used to process communication protocols and communication data, control the entire terminal device, execute software programs, and process the data of software programs. For example, it is used to support the terminal device to perform the actions described in the embodiments of the method for indicating the transmission precoding matrix. The memory is mainly used to store software programs and data. For example, it stores the codebook described in the above embodiments. The control circuit is mainly used for the conversion between baseband signals and radio frequency signals and the processing of radio frequency signals. The control circuit and the antenna together can also be called a transceiver, which is mainly used to receive and transmit radio frequency signals in the form of electromagnetic waves. Input / output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users.

[0271] After the terminal device is powered on, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be wirelessly transmitted, the processor performs baseband processing on the data to be transmitted and then outputs a baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and then transmits the radio frequency signal outward in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data.

[0272] Those skilled in the art can understand that for the sake of convenience of description, Figure 13 only one memory and one processor are shown. In an actual terminal device, there may be multiple processors and memories. The memory can also be referred to as a storage medium or a storage device, etc. The embodiments of the present application do not limit this.

[0273] For example, the processor may include a baseband processor and a central processor. The baseband processor is mainly used to process communication protocols and communication data, and the central processor is mainly used to control the entire terminal device, execute software programs, and process the data of software programs. Figure 13The processor therein integrates the functions of a baseband processor and a central processor. Those skilled in the art can understand that the baseband processor and the central processor can also be independent processors interconnected through technologies such as a bus. Those skilled in the art can understand that a terminal device can include multiple baseband processors to adapt to different network standards, and a terminal device can include multiple central processors to enhance its processing capabilities. Each component of the terminal device can be connected through various buses. The baseband processor can also be referred to as a baseband processing circuit or a baseband processing chip. The central processor can also be referred to as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor or stored in a storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.

[0274] Exemplarily, in the embodiments of the present application, an antenna and a control circuit with transceiver functions can be regarded as a transceiver unit 1301 of the terminal device 1300, and a processor with processing functions can be regarded as a processing unit 1302 of the terminal device 1300. As Figure 13 shown, the terminal device 1300 includes a transceiver unit 1301 and a processing unit 1302. The transceiver unit can also be referred to as a transceiver, a transceiver machine, a transceiver device, etc. Optionally, the devices in the transceiver unit 1301 for implementing the receiving function can be regarded as a receiving unit, and the devices in the transceiver unit 1301 for implementing the sending function can be regarded as a sending unit, that is, the transceiver unit 1301 includes a receiving unit and a sending unit. Exemplarily, the receiving unit can also be referred to as a receiver, a receiver circuit, etc., and the sending unit can be referred to as a transmitter, a transmitter circuit, etc.

[0275] Figure 14 FIG. is a schematic structural diagram of a network device 1400 provided by 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) (which can also be referred to as a digital unit, DU) 1402. The RRU 1401 can be referred to as a transceiver unit, a transceiver machine, a transceiver circuit, or a transceiver, etc., and it can include at least one antenna 14011 and a radio frequency unit 14012. The RRU 1401 part is mainly used for the transceiver of radio frequency signals and the conversion between radio frequency signals and baseband signals, for example, for sending the signaling messages in the above embodiments to the terminal device. The BBU 1402 part is mainly used for baseband processing and controlling the base station, etc. The RRU 1401 and the BBU 1402 can be physically set together or physically separated, that is, a distributed base station.

[0276] The BBU 1402 is the control center of the base station and can also be referred to as a processing unit, which is mainly used to complete baseband processing functions such as channel coding, multiplexing, modulation, spreading, 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 embodiments.

[0277] In one example, the BBU 1402 can be composed of one or more single boards. The multiple single boards can jointly support a radio access network of a single access mode (such as an LTE system or a 5G system), or can separately support radio access networks of different access modes. 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 embodiments. 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 embodiments. The memory 14021 and the processor 14022 can serve one or more single boards. That is to say, a memory and a processor can be separately set on each single board. It can also be that multiple single boards share the same memory and processor. In addition, necessary circuits can be provided on each single board.

[0278] In a possible implementation manner, with the development of system-on-chip (SoC) technology, all or part of the functions of the 1402 part and the 1401 part can be implemented by SoC technology. For example, it can be implemented by a base station function chip, which integrates devices such as a processor, a memory, and an antenna interface. The programs related to the base station functions are stored in the memory, and the processor executes the programs to implement the related functions of the base station. Optionally, the base station function chip can also read the external memory of the chip to implement the related functions of the base station.

[0279] It should also be understood that the division of units in the above device is only a division of logical functions. In actual implementation, they can be fully or partially integrated into a physical entity, or physically separated. And the units in the device can all be implemented in the form of software called by processing elements; they can also all be implemented in the form of hardware; or some units can be implemented in the form of software called by 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 can be integrated in a certain chip of the device. In addition, it can also be stored in the memory in the form of a program and called and executed by a certain processing element of the device to perform the functions 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 of the above units can be implemented through the integrated logic circuit of the hardware in the processor element or in the form of software called by the processing element. In one example, the units in any of the above devices can be one or more integrated circuits configured to implement the above method, for example: 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. Again, when the units in the device can be implemented in the form of a processing element scheduler, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call programs. Again, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0280] The embodiment of the present application also provides a chip system, as Figure 15 shown. The chip system includes at least one processor 1510 and at least one interface circuit 1520. The processor 1510 and the interface circuit 1520 can be interconnected by a line. For example, the interface circuit 1520 can be used to receive signals from other devices (such as the memory of the terminal device 1200). Again, for 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 the 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 be made to execute each step performed by the terminal device in the above embodiment. Of course, the chip system can also include other discrete devices, and the embodiment of the present application does not make specific limitations on this.

[0281] An embodiment of the present application further provides a communication system, which includes: the network device (such as the first network device) and the terminal device (such as the first terminal device, etc.) provided in the above method embodiment.

[0282] An embodiment of the present application further provides a computer-readable storage medium for storing computer program code, and the computer program includes instructions for executing any one of the interference cancellation methods provided in the above embodiments of the present application. The readable medium may be a read-only memory (ROM) or a random access memory (RAM), and the embodiments of the present application do not limit this.

[0283] The present application further provides a computer program product, which includes instructions that, when executed, cause the first network device and the first terminal device to perform corresponding operations corresponding to the above method.

[0284] An embodiment of the present application further provides a chip located in a communication device. The chip includes: 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, etc. The processing unit can execute computer instructions to cause the communication device to execute any one of the interference cancellation methods provided in the above embodiments of the present application.

[0285] Optionally, the computer instructions are stored in a storage unit.

[0286] Optionally, the storage unit is a storage unit inside the chip, such as a register, a cache, etc. The storage unit may also be a storage unit outside the chip and inside the terminal, such as a ROM or other types of static storage devices that can store static information and instructions, a random RAM, etc. Among them, the processor mentioned anywhere above may be a CPU, a microprocessor, an ASIC, or an integrated circuit for controlling the execution of the program of the above feedback information transmission method. The processing unit and the storage unit may be decoupled and respectively arranged on different physical devices, and are connected by wired or wireless means to implement the respective functions of the processing unit and the storage unit, so as to support the system chip to implement various functions in the above embodiments. Or, the processing unit and the memory may also be coupled on the same device.

[0287] 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 method provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method provided above, and will not be elaborated here.

[0288] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a ROM, a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a RAM, which is used as an external cache. There are various 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), synch link dynamic random access memory (SLDRAM), and direct rambus random access memory (DRRAM).

[0289] In the present application, names are given to various objects such as various messages / information / devices / network elements / systems / devices / actions / operations / processes / concepts, etc. that may appear. It can be understood that these specific names do not constitute limitations on the relevant objects, and the given names can be changed according to factors such as the scenario, context, or usage habits. The understanding of the technical meaning of the technical terms in the present application should be mainly determined from the functions and technical effects reflected / executed in the technical solution.

[0290] In the various embodiments of the present application, if there is no special description and logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other. The technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0291] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0292] 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, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are executed in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer program or instructions can be stored in a computer-readable storage medium or transmitted through 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 integrating one or more available media.

[0293] Those skilled in the art can 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 foregoing method embodiments and will not be elaborated herein.

[0294] In the several embodiments provided in the present 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 illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For example, 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 couplings, direct couplings, or communication connections shown or discussed with each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0295] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0296] In addition, in each embodiment of the present application, the functional units can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit.

[0297] When the above-mentioned 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, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a readable storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present application. The aforementioned readable storage medium includes: various media such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical discs that can store program codes.

[0298] As described above, the above are only specific implementation manners of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for interference cancellation, characterized in that, the method is applied to a first network device, and the method includes: sending first indication information 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 in a 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.

2. The method according to claim 1, characterized in that, 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 the allocated resources on at least one first resource.

3. The method according to claim 1 or 2, characterized in that, there is a first association relationship between the one or more filter bandwidths and the first resource or the allocated resources on the first resource.

4. The method according to any one of claims 1-3, 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 the allocated resources of at least one first resource.

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

6. The method according to any one of claims 1-5, 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 resource includes: allocating resources on one first resource among the 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 resources on one first resource.

7. The method according to any one of claims 1-6, 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 one first resource or the frequency resource size of the allocated resources on one first resource, where the two first resources respectively correspond to one first antenna information.

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 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.

10. The method according to any one of claims 1-9, wherein, the method further comprises: sending second indication information to the first terminal device, the second indication information being 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 belonging to a first operator, the second network device belonging to a second operator, the first terminal device communicating on the first operator, the first frequency resource including 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 resource being discontinuous.

11. A method for interference cancellation, wherein, the method is applied to a first terminal device, and the method comprises: receiving 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, the first frequency resource including a plurality of first resources, and any two of the plurality of first resources being discontinuous; determining, based on the first indication information, at least one of the following: 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.

12. The method according to claim 11, wherein, 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 the allocated resources on at least two first resources.

13. The method according to claim 11 or 12, wherein, the one or more filter bandwidths have a first association relationship with the first resource or the allocated resources on the first resource.

14. The method according to any one of claims 11-13, wherein, 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 being one or more, and the first antenna information being applied to at least one first resource or the allocated resources of at least one first resource.

15. The method according to any one of claims 11-14, wherein, the one or more first antenna information have a second association relationship with the first resource or the allocated resources on the first resource.

16. The method according to any one of claims 11-15, wherein, 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 the 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 resources on one first resource.

17. The method according to any one of claims 11 - 15, wherein, 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 one first resource or the frequency resource size of the allocated resources on one first resource, wherein the two first resources respectively correspond to one first antenna information.

18. The method according to claim 17, wherein, 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, wherein, 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.

20. The method according to any one of claims 11 - 19, wherein, the method further includes: receiving second indication information sent by a first network device; measuring and reporting to a second network device the interference of the received signal of the first terminal device based on the second indication information, 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, the first frequency resource includes 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 resource are discontinuous.

21. A communication device, wherein, the device includes at least one processor, and the at least one processor is coupled to at least one memory: the at least one processor is configured to execute the computer program or instructions 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, wherein, the computer - readable storage medium stores a computer program or instructions, and when the computer reads and executes the computer program or instructions, the computer is made 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.

23. A chip, wherein, includes: 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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