Interference elimination method, device, interfered station and readable storage medium

Abstract

The present application provides an interference elimination method, device, interfered station and readable storage medium. There is cross-slot interference between the first time slot of the interfered station and the second time slot of the interfering station, and the method includes: performing resource silencing on the first symbol, the first symbol being the first N symbols of the first time slot; receiving first information on the first symbol, the first information being the downlink interference signal of the first N symbols of the second time slot; receiving second information on the second symbol, the second symbol being the symbol of the first time slot other than the first symbol, the second information including the uplink useful signal of the second symbol and the downlink interference signal of the symbol of the second time slot other than the first N symbols; performing the cross-slot interference elimination operation according to the first information and the second information. The present application can reduce the interference of the interfering station to the interfered station without affecting the performance of the base station.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communication technologies, and in particular to an interference cancellation method, device, interfered station, and readable storage medium. Background Art

[0002] When two time division duplex (TDD) systems use the same or adjacent frequencies, such as Figure 1 As shown, if the time slots are not synchronized, the downlink (D) of one TDD system will interfere with the uplink (U) of another TDD system, resulting in cross-time slot interference.

[0003] Currently, inter-base station interference is typically mitigated by reducing the downlink transmit power of interfering stations in intersecting time slots, or by staggering the frequency domains of user resources between intersecting stations and affected stations. However, these inter-base station interference mitigation methods can affect base station coverage or capacity, resulting in lower base station performance. Summary of the Invention

[0004] The embodiments of the present application provide an interference cancellation method, apparatus, interfered station, and readable storage medium to solve the interference problem between base stations without degrading the performance of the base stations.

[0005] To solve the above problems, this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides an interference cancellation method, applied to a victim station, where there is cross-slot interference between a first time slot of the victim station and a second time slot of an interfering station. The method includes:

[0007] Performing resource muting on a first symbol, where the first symbol is first N symbols of the first time slot, where N is a positive integer less than M, and M is the number of symbols included in the first time slot;

[0008] receiving first information on the first symbol, where the first information is a downlink interference signal of first N symbols of the second time slot;

[0009] receiving second information on a second symbol, where the second symbol is a symbol of the first time slot excluding the first symbol, and the second information includes an uplink useful signal of the second symbol and a downlink interference signal of symbols excluding the first N symbols of the second time slot;

[0010] According to the first information and the second information, an operation of eliminating the cross-slot interference is performed. In a second aspect, an embodiment of the present application further provides an interference elimination device, applied to a victim station, where there is cross-slot interference between a first time slot of the victim station and a second time slot of an interfering station, the device comprising:

[0011] a processor, configured to perform resource muting on a first symbol, where the first symbol is first N symbols of the first time slot, where N is a positive integer less than M, and M is the number of symbols included in the first time slot;

[0012] Transceivers for:

[0013] receiving first information on the first symbol, where the first information is a downlink interference signal of the first N symbols of the second time slot;

[0014] receiving second information on a second symbol, where the second symbol is a symbol of the first time slot excluding the first symbol, and the second information includes an uplink useful signal of the second symbol and a downlink interference signal of symbols excluding the first N symbols of the second time slot;

[0015] The processor is further configured to perform an operation of eliminating the cross-slot interference according to the first information and the second information.

[0016] In a third aspect, an embodiment of the present application further provides an interfered station, comprising: a transceiver, a memory, a processor, and a program stored in the memory and executable on the processor; the processor is configured to read the program in the memory to implement the steps of the method described in the first aspect above.

[0017] In a fourth aspect, an embodiment of the present application further provides a readable storage medium for storing a program, which, when executed by a processor, implements the steps in the method described in the first aspect above.

[0018] In an embodiment of the present application, for the time slot that is interfered with, the interfered station can receive the downlink interference signal of the jammer on the first N symbols by keeping the first N symbols silent, and receive the superimposed signal of the uplink useful signal and the downlink interference signal of the jammer on other symbols. In this way, the interference signal can be eliminated based on the downlink interference signal received on the first N symbols and the superimposed signal received on other symbols. There is no need to change the existing architecture, and the impact of the interference signal of the jammer station on the interfered station can be reduced without affecting the performance of the base station. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1is a schematic diagram of cross-slot interference provided by an embodiment of the present application;

[0021] Figure 2 This is one of the flow charts of the interference elimination method provided in the embodiment of the present application;

[0022] Figure 3 This is a schematic diagram of interference measurement provided by an embodiment of the present application;

[0023] Figure 4 This is the second flow chart of the interference elimination method provided in the embodiment of the present application;

[0024] Figure 5 It is a structural diagram of the interference elimination device provided by the present application;

[0025] Figure 6 It is a structural diagram of the disturbed station provided by the implementation of this application. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0027] The terms "first", "second" etc. in the embodiments of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. In addition, the terms "comprise" and "have" and any deformation thereof are intended to cover non-exclusive inclusions, such as, the process, method, system, product or equipment comprising a series of steps or units need not be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or that are intrinsic to these processes, methods, products or equipment. In addition, "and / or" is used in the present application to represent at least one of connected objects, such as A and / or B and / or C, and represents comprising independent A, independent B, independent C, and A and B all exist, B and C all exist, A and C all exist, and 7 situations that A, B and C all exist.

[0028] The following describes the interference elimination method provided in the embodiments of the present application.

[0029] See also Figure 2 , Figure 2 This is one of the flow charts of the interference elimination method provided in the embodiment of the present application. Figure 2The interference cancellation method shown can be applied to a victim station. There is cross-slot interference between the first time slot of the victim station and the second time slot of the interfering station. It can be understood that the first time slot is a time slot for uplink reception, such as U or S, and the second time slot is a time slot for downlink transmission, such as D or S.

[0030] like Figure 2 As shown, the interference elimination method may include the following steps:

[0031] Step 201: Perform resource silence on a first symbol, where the first symbol is the first N symbols of the first time slot, where N is a positive integer less than M, and M is the number of symbols included in the first time slot.

[0032] In a specific implementation, performing resource quiescence on the first symbol may be performed as any of the following:

[0033] not receiving an uplink signal on the first symbol;

[0034] The first symbol is not scheduled, so that the uplink transmission corresponding to the first symbol is not performed.

[0035] The first symbol may include one or more (at least two) symbols. The value of N may be determined by protocol agreement or by negotiation between the interfering station and the interfered station. The embodiment of the present application does not limit the manner in which N is determined. Optionally, N may be 1, 2, or 3, but is not limited thereto.

[0036] Step 202: Receive first information on the first symbol, where the first information is a downlink interference signal of the first N symbols of the second time slot.

[0037] Since resource muting is performed on the first symbol, it can be understood that what the victim station receives on the first symbol is the downlink interference signal of the interfering station.

[0038] In the embodiment of the present application, receiving a downlink interference signal can be understood as measuring the downlink interference signal, i.e., interference measurement. The downlink interference signal may include at least one of the following: a downlink control channel such as a Physical Downlink Control Channel (PDCCH) and / or a Physical Downlink Shared Channel (PDSCH); or a downlink reference signal.

[0039] Step 203: Receive second information on a second symbol, where the second symbol is a symbol in the first time slot excluding the first symbol, and the second information includes an uplink useful signal of the second symbol and a downlink interference signal of the symbols in the second time slot excluding the first N symbols.

[0040] Since the first time slot is a time slot for uplink reception and the first time slot is subject to downlink interference from the interfering station, it can be understood that what the interfered station receives on the second symbol is a superposition of the uplink useful signal and the downlink interference signal. The uplink useful signal may include at least one of the following: an uplink control channel such as a physical uplink shared channel (PUSCH); an uplink reference signal such as a demodulation reference signal (DMRS).

[0041] The second symbol may include one or more symbols. The symbols in the second symbol correspond one-to-one with the symbols other than the first N symbols in the second time slot, and each symbol in the second symbol may receive a downlink interference signal of the corresponding symbol in the second time slot.

[0042] Step 204: Perform an operation of eliminating the cross-slot interference according to the first information and the second information.

[0043] In a specific implementation, the interfered station can perform interference estimation, channel estimation, and channel equalization based on the first information and the second information to eliminate the interference signal and output the original estimated signal after the interference is eliminated, thereby not affecting the subsequent processing of the useful signal of the interfered station. Of course, in other implementations, the interfered station can also use the first information and the second information to eliminate cross-slot interference in other ways after silencing the first N symbols of the first time slot, and this embodiment of the present application is not limited to this.

[0044] According to the interference elimination method of this embodiment, for the interfered time slot, the interfered station can receive the downlink interference signal of the jammer on the first N symbols by keeping silent for the first N symbols, and receive the superimposed signal of the uplink useful signal and the downlink interference signal of the jammer on other symbols. In this way, the interference signal can be eliminated based on the downlink interference signal received on the first N symbols and the superimposed signal received on other symbols. There is no need to change the existing architecture, and the impact of the interference signal of the interfering station on the interfered station can be reduced without affecting the performance of the base station.

[0045] The implementation of step 204 is described in detail below.

[0046] Optionally, performing the operation of eliminating the cross-slot interference according to the first information and the second information includes:

[0047] performing interference estimation based on the first information to obtain a first interference estimation result;

[0048] generating a target channel estimation matrix according to the second information;

[0049] generating a second interference estimation result according to the second information and the target channel estimation matrix;

[0050] Channel equalization is performed based on the first interference estimation result, the target channel estimation matrix, the second interference estimation result and target information to obtain an estimated signal after the cross-slot interference is eliminated, and the target information is generated based on the first information and the second information.

[0051] In this optional implementation, the victim station may perform interference estimation based on the first information; and sequentially perform channel estimation and interference estimation between the victim and interfering stations based on the second information. Subsequently, channel equalization may be performed based on the above estimation results to eliminate the interference signal, and the original estimated signal after interference elimination may be output, thereby not affecting subsequent processing of the victim station's useful signal.

[0052] In a specific implementation, the interfered station may use the power of the downlink interference signal Y1 in the first information as the first interference estimation result I1, that is, I2 = ‖Y1‖ 2 .

[0053] In the case that the second symbol includes a symbol for receiving an uplink reference signal, the interfered station may perform channel estimation based on the uplink reference signal sequence received by the second symbol and the second information to obtain the target channel estimation matrix.

[0054] Optionally, the second symbol includes a third symbol and a fourth symbol, the third symbol is used to receive a target uplink reference signal, and the fourth symbol is used to receive uplink signals other than the target uplink reference signal;

[0055] Generating a target channel estimation matrix according to the second information includes:

[0056] Perform channel estimation based on the second information and the target uplink reference signal to obtain a first channel estimation matrix corresponding to the third symbol;

[0057] Calculate a second channel estimation matrix corresponding to the fourth symbol using a linear interpolation method based on the first channel estimation result;

[0058] The first channel estimation result and the second channel estimation result are concatenated to obtain a target channel estimation matrix.

[0059] The third symbol may include one or more symbols, and the fourth symbol may include one or more symbols, which may be determined according to actual conditions and is not limited in this embodiment of the present application.

[0060] During implementation, the victim station may estimate a first channel estimation matrix H1 corresponding to the third symbol based on the target uplink reference signal and the superposition of the received uplink useful signal and downlink interference signal. Then, based on the first channel estimation result H1, a linear interpolation method is used to calculate a second channel estimation matrix H2 corresponding to the fourth symbol. The target channel estimation matrix H is then obtained by concatenating the first channel estimation matrix H1 and the second channel estimation matrix H2, i.e., H = [H1, H2].

[0061] It should be noted that the method for obtaining the first channel estimation matrix and the second channel estimation matrix can be referred to in the relevant technology and will not be described here. The order in which the first channel estimation result and the second channel estimation result are spliced ​​is related to the order of the third symbol and the fourth symbol in the time domain. For example, if the third symbol is before the fourth symbol, the second channel estimation result can be spliced ​​after the first channel estimation result; if the third symbol is after the fourth symbol, the first channel estimation result can be spliced ​​after the second channel estimation result.

[0062] After obtaining the target channel estimation matrix, the interfered station can reconstruct the uplink useful signal based on the target channel estimation channel, and then obtain the second interference estimation result based on the reconstructed uplink useful signal and the superposition signal of the received uplink useful signal and the downlink interference signal.

[0063] Optionally, the second symbol includes a third symbol and a fourth symbol, the third symbol is used to receive a target uplink reference signal, and the fourth symbol is used to receive uplink signals other than the target uplink reference signal;

[0064] Generating a second interference estimation result according to the second information and the target channel estimation matrix includes:

[0065] Perform signal reconstruction based on the target uplink reference signal and the target channel estimation matrix to obtain a reconstructed useful signal;

[0066] Interference estimation is performed based on the second information and the reconstructed useful signal to obtain a second interference estimation result.

[0067] During implementation, the interfered station may use the target uplink reference signal S UL Multiplying the target channel estimation matrix H, the reconstructed useful signal Y1 is obtained, that is, Y1 = S UL H.

[0068] Afterwards, the interfered station can calculate the second interference estimation result based on the difference between the superimposed signal Y2 of the received uplink useful signal and the downlink interference signal and the reconstructed useful signal Y3. Specifically, the power of the above difference can be used as the second interference estimation result I 2. , that is, I2=‖Y2-Y3‖ 2 .

[0069] After performing the above interference estimation and channel estimation, the interfered station may perform channel equalization based on the estimation results to obtain the original estimated signal after eliminating the cross-slot interference.

[0070] Optionally, performing channel equalization based on the first interference estimation result, the target channel estimation matrix, the second interference estimation result, and target information to obtain the estimated signal after cross-slot interference cancellation includes:

[0071] Obtaining an interference cancellation matrix by using a minimum mean square error (MMSE) calculation based on the first interference estimation result, the second interference estimation result, and the target channel estimation matrix;

[0072] An estimated signal after the cross-slot interference cancellation is generated according to the interference cancellation matrix and target information, wherein the target information is generated based on the first information and the second information.

[0073] During implementation, the interfered station may concatenate the first interference estimation result I 1. and the second interference estimation result I 2. , I is obtained, and then, based on I and H, the interference cancellation matrix G is calculated using MMSE. The specific calculation method can be found in the relevant technology and is not described here.

[0074] The interfered station may concatenate the first information and the second information to obtain superimposed information Y, and then may use the product of Y and G as the original estimated signal after interference cancellation, ie, X=G*Y.

[0075] It should be noted that before performing channel equalization, the interfered station can perform operations such as resource silencing, interference estimation, and channel estimation in units of time slots. During the channel equalization process, channel equalization can be performed in units of frames, thereby reducing the operating burden of the interfered station.

[0076] It can be seen that through the above method, the interfered station can perform channel equalization by silencing the first N symbols of the interfered time slot, using the downlink interference signal measured by the first N symbols of the time slot, and the superimposed signal measured by other symbols of the time slot, thereby eliminating the interference of cross-time slots, thereby reducing the impact of the interference signal of the interfering station on the interfered station without affecting the performance of the base station.

[0077] In the embodiments of the present application, the victim station can be a macro station or a pico station, and the interfering station can also be a macro station or a pico station. The embodiments of the present disclosure do not limit the types of the victim station and the interfering station, that is, the embodiments of the present application can be applied to any type of interference source. For example, the interference cancellation method of the embodiments of the present application can be applied to the following scenarios:

[0078] Scenario 1: Macro sites intersect, downlink interference to uplink;

[0079] Scenario 2: Macro and pico cells: The macro downlink interferes with the pico cell uplink, or vice versa.

[0080] Scenario 3: Peer stations intersect, downlink interference to uplink.

[0081] The various optional implementation methods introduced in the embodiments of the present application can be implemented in combination with each other or separately if they do not conflict with each other, and the embodiments of the present application do not limit this.

[0082] For ease of understanding, combined Figure 3 An example of an interference measurement diagram is as follows:

[0083] exist Figure 3 In the example below, the first symbol muting resource is used for illustration, that is, N is equal to 1.

[0084] 1. Overall structure.

[0085] The interference elimination method of the present application can eliminate the received interference signal before uplink equalization, so as not to affect the subsequent processing of the useful signal of the interfered station; at the same time, it can achieve a better interference elimination effect without losing the capacity and coverage of the base station; for different types of interference sources, a matching control channel interference elimination scheme and architecture are proposed, which can also not rely on macro-micro collaboration and configuration interaction, as well as architectural changes and hardware modifications, further reducing the processing complexity of the interfered station under interference conditions, and the difficulty of cooperation between the interfering station and the interfered station from different manufacturers. The processing flow of the interfered station distinguishes between the first symbol and non-first symbol resources for interference elimination and channel equalization respectively. For details, please refer to Figure 4 .

[0086] exist Figure 4 In the case of the first symbol after the silent resource, uplink reception and interference estimation can be performed in sequence. Non-first symbols can perform uplink reception, channel estimation, and interference estimation in sequence. Afterwards, the interfered station can perform channel equalization. The details are as follows:

[0087] 2. First Symbol Interference Estimation

[0088] Uplink reception: The interfered station measures the downlink interference signal of the PDCCH control channel of the interfering station at the specific resource position of the first symbol through the first symbol silent resource method, and then obtains the interference signal between the base stations and inputs it into the interference estimation module.

[0089] Interference estimation: The measured interference signal power is used as the interference estimation result and input into the channel equalization module.

[0090] 3. Other Symbol Interference Estimation

[0091] Uplink reception: The victim station receives the superimposed data of the terminal uplink useful signal and the downlink interference signal of the PDSCH service channel of the interfering station at other resource positions other than the first symbol, and inputs it into the channel estimation module.

[0092] Channel estimation: The interfered station estimates the PUSCH channel matrix H1 at the uplink DMRS time domain symbol position based on the uplink reference signal DMRS sequence. Then, based on the linear difference method, it obtains the PUSCH channel estimation result H2 for other non-DMRS time domain symbols other than the first symbol. H = [H1, H2] is input into the interference estimation module.

[0093] Interference estimation: Based on the uplink reference signal DMRS sequence and the channel estimation matrix H, the useful signal reconstruction data is obtained, and the uplink received superposition data Y is obtained. PDSCH The difference between the useful signal and the reconstructed data is used to obtain the interference estimation result, which is input into the channel equalization module.

[0094] 4. Channel Equalization

[0095] The interference estimation result based on the first symbol and other symbols and the uplink received superimposed data Y are respectively sent to the channel equalization module, G is obtained based on the MMSE minimum mean square error, and the original estimated signal X=G*Y after interference elimination is output.

[0096] This interference cancellation method utilizes first-symbol muting frequency domain resources to achieve control channel interference measurement and cancellation without affecting existing channel equalization, relying on macro-micro coordination, or requiring architecture changes. This method can further reduce interference between macro and macro sites, between macro and pico sites, and between pico sites, improving system performance and cell throughput.

[0097] See also Figure 5 , Figure 5The interference cancellation device is applied to the interfered station, and there is cross-slot interference between the first time slot of the interfered station and the second time slot of the interfering station, such as Figure 5 As shown, the interference elimination device 500 includes:

[0098] Processor 501 is configured to perform resource muting on a first symbol, where the first symbol is first N symbols of the first time slot, where N is a positive integer less than M, and M is the number of symbols included in the first time slot;

[0099] The transceiver 502 is configured to:

[0100] receiving first information on the first symbol, where the first information is a downlink interference signal of first N symbols of the second time slot;

[0101] receiving second information on a second symbol, where the second symbol is a symbol of the first time slot excluding the first symbol, and the second information includes an uplink useful signal of the second symbol and a downlink interference signal of symbols excluding the first N symbols of the second time slot;

[0102] The processor 501 is further configured to perform an operation of eliminating the cross-slot interference according to the first information and the second information.

[0103] Optionally, the processor 501 is configured to:

[0104] performing interference estimation based on the first information to obtain a first interference estimation result;

[0105] generating a target channel estimation matrix according to the second information;

[0106] generating a second interference estimation result according to the second information and the target channel estimation matrix;

[0107] Channel equalization is performed based on the first interference estimation result, the target channel estimation matrix, the second interference estimation result and target information to obtain an estimated signal after the cross-slot interference is eliminated, and the target information is generated based on the first information and the second information.

[0108] Optionally, the second symbol includes a third symbol and a fourth symbol, the third symbol is used to receive a target uplink reference signal, and the fourth symbol is used to receive uplink signals other than the target uplink reference signal;

[0109] The processor 501 is configured to:

[0110] Perform channel estimation based on the second information and the target uplink reference signal to obtain a first channel estimation matrix corresponding to the third symbol;

[0111] Calculate a second channel estimation matrix corresponding to the fourth symbol using a linear interpolation method based on the first channel estimation result;

[0112] The first channel estimation result and the second channel estimation result are concatenated to obtain a target channel estimation matrix.

[0113] Optionally, the second symbol includes a third symbol and a fourth symbol, the third symbol is used to receive a target uplink reference signal, and the fourth symbol is used to receive uplink signals other than the target uplink reference signal;

[0114] The processor 501 is configured to:

[0115] Perform signal reconstruction based on the target uplink reference signal and the target channel estimation matrix to obtain a reconstructed useful signal;

[0116] Interference estimation is performed based on the second information and the reconstructed useful signal to obtain a second interference estimation result.

[0117] Optionally, the processor 501 is configured to:

[0118] Obtaining an interference cancellation matrix by using minimum mean square error (MMSE) calculation based on the first interference estimation result, the second interference estimation result, and the target channel estimation matrix;

[0119] An estimated signal after the cross-slot interference cancellation is generated according to the interference cancellation matrix and target information, wherein the target information is generated based on the first information and the second information.

[0120] The interference elimination device 500 can realize the embodiment of the present application Figure 2 The various processes of the method embodiment and the achievement of the same beneficial effects are not described again here to avoid repetition.

[0121] The embodiment of the present application also provides a disturbed station. Figure 6 The interfered station may include a processor 601, a memory 602, and a program 6021 stored in the memory 602 and executable on the processor 601. When the program 6021 is executed by the processor 601, Figure 2 Any steps in the corresponding method embodiments and achieving the same beneficial effects will not be repeated here.

[0122] A person skilled in the art will understand that all or part of the steps of the above-mentioned embodiment method can be completed by hardware related to program instructions, and the program can be stored in a readable medium. The embodiment of the present application also provides a readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned method can be implemented. Figure 2 Any steps in the corresponding method embodiments can achieve the same technical effects and will not be described again here to avoid repetition.

[0123] The storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0124] The above is a preferred implementation of the embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An interference elimination method, applied to an interfered station, characterized in that: There is cross-slot interference between a first time slot of the victim station and a second time slot of the interfering station, and the method includes: Performing resource muting on a first symbol, where the first symbol is first N symbols of the first time slot, where N is a positive integer less than M, and M is the number of symbols included in the first time slot; receiving first information on the first symbol, where the first information is a downlink interference signal of first N symbols of the second time slot; receiving second information on a second symbol, where the second symbol is a symbol of the first time slot excluding the first symbol, and the second information includes an uplink useful signal of the second symbol and a downlink interference signal of symbols excluding the first N symbols of the second time slot; Performing an operation of eliminating the cross-slot interference according to the first information and the second information; The performing an operation of eliminating the cross-slot interference according to the first information and the second information includes: performing interference estimation based on the first information to obtain a first interference estimation result; generating a target channel estimation matrix according to the second information; generating a second interference estimation result according to the second information and the target channel estimation matrix; Channel equalization is performed based on the first interference estimation result, the target channel estimation matrix, the second interference estimation result and target information to obtain an estimated signal after the cross-slot interference is eliminated, and the target information is generated based on the first information and the second information.

2. The method according to claim 1, characterized in that The second symbol includes a third symbol and a fourth symbol, the third symbol is used to receive a target uplink reference signal, and the fourth symbol is used to receive uplink signals other than the target uplink reference signal; Generating a target channel estimation matrix according to the second information includes: Perform channel estimation based on the second information and the target uplink reference signal to obtain a first channel estimation matrix corresponding to the third symbol; Calculate a second channel estimation matrix corresponding to the fourth symbol using a linear interpolation method based on the first channel estimation result; The first channel estimation result and the second channel estimation result are concatenated to obtain a target channel estimation matrix.

3. The method according to claim 1, characterized in that The second symbol includes a third symbol and a fourth symbol, the third symbol is used to receive a target uplink reference signal, and the fourth symbol is used to receive uplink signals other than the target uplink reference signal; Generating a second interference estimation result according to the second information and the target channel estimation matrix includes: Perform signal reconstruction based on the target uplink reference signal and the target channel estimation matrix to obtain a reconstructed useful signal; Interference estimation is performed based on the second information and the reconstructed useful signal to obtain a second interference estimation result.

4. The method according to claim 1, wherein The performing channel equalization based on the first interference estimation result, the target channel estimation matrix, the second interference estimation result, and the target information to obtain the estimated signal after the cross-slot interference is eliminated includes: Obtaining an interference cancellation matrix by using minimum mean square error (MMSE) calculation based on the first interference estimation result, the second interference estimation result, and the target channel estimation matrix; An estimated signal after the cross-slot interference cancellation is generated according to the interference cancellation matrix and target information, wherein the target information is generated based on the first information and the second information.

5. An interference elimination device, applied to an interfered station, characterized in that: There is cross-slot interference between a first time slot of the victim station and a second time slot of the interfering station, and the apparatus comprises: a processor, configured to perform resource muting on a first symbol, where the first symbol is first N symbols of the first time slot, where N is a positive integer less than M, and M is the number of symbols included in the first time slot; Transceivers for: receiving first information on the first symbol, where the first information is a downlink interference signal of the first N symbols of the second time slot; receiving second information on a second symbol, where the second symbol is a symbol of the first time slot excluding the first symbol, and the second information includes an uplink useful signal of the second symbol and a downlink interference signal of symbols excluding the first N symbols of the second time slot; The processor is further configured to perform an operation of eliminating the cross-slot interference according to the first information and the second information; The processor is configured to: performing interference estimation based on the first information to obtain a first interference estimation result; generating a target channel estimation matrix according to the second information; generating a second interference estimation result according to the second information and the target channel estimation matrix; Channel equalization is performed based on the first interference estimation result, the target channel estimation matrix, the second interference estimation result and target information to obtain an estimated signal after the cross-slot interference is eliminated, and the target information is generated based on the first information and the second information.

6. The device according to claim 5, characterized in that The second symbol includes a third symbol and a fourth symbol, the third symbol is used to receive a target uplink reference signal, and the fourth symbol is used to receive uplink signals other than the target uplink reference signal; The processor is configured to: Perform channel estimation based on the second information and the target uplink reference signal to obtain a first channel estimation matrix corresponding to the third symbol; Calculate a second channel estimation matrix corresponding to the fourth symbol using a linear interpolation method based on the first channel estimation result; The first channel estimation result and the second channel estimation result are concatenated to obtain a target channel estimation matrix.

7. The device according to claim 5, characterized in that The second symbol includes a third symbol and a fourth symbol, the third symbol is used to receive a target uplink reference signal, and the fourth symbol is used to receive uplink signals other than the target uplink reference signal; The processor is configured to: Perform signal reconstruction based on the target uplink reference signal and the target channel estimation matrix to obtain a reconstructed useful signal; Interference estimation is performed based on the second information and the reconstructed useful signal to obtain a second interference estimation result.

8. The device according to claim 5, characterized in that The processor is configured to: Obtaining an interference cancellation matrix by using minimum mean square error (MMSE) calculation based on the first interference estimation result, the second interference estimation result, and the target channel estimation matrix; An estimated signal after the cross-slot interference cancellation is generated according to the interference cancellation matrix and target information, wherein the target information is generated based on the first information and the second information.

9. A victim station, comprising: A transceiver, a memory, a processor, and a program stored in the memory and executable on the processor; wherein the processor is configured to read the program in the memory to implement the steps of the interference elimination method according to any one of claims 1 to 4.

10. A readable storage medium for storing a program, characterized in that: When the program is executed by a processor, the steps of the interference cancellation method according to any one of claims 1 to 4 are implemented.

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