Interference processing method, system, base station and terminal

Abstract

The present application relates to the technical field of communications, and to an interference processing method, a system, a base station and a terminal. The interference processing method in the present application is executed by a terminal, and comprises: receiving indication information sent by a base station, wherein the indication information is used for indicating whether current downlink scheduling comprises transmission of a multiplexing terminal in multi-user multiple-input multiple-output (MU-MIMO) and / or related information of the multiplexing terminal; and performing interference processing on the basis of the indication information.

Description

Interference processing method, system, base station and terminal

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the application with CN application number 202311160860.7 and application date September 8, 2023, and claims its priority. The disclosed content of the CN application is hereby introduced as a whole into this application. Technical Field

[0003] The present disclosure relates to the field of communication technologies, and in particular to an interference processing method, system, base station, and terminal. Background Art

[0004] 5G (5th Generation Mobile Communication Technology) NR (New Radio) base stations generally use MU-MIMO (Multi-User Multiple-Input Multiple-Output) in the 3.5 GHz and higher frequency bands. They can transmit downlink data to multiple terminals (user equipment, UE) simultaneously on the same frequency, which can improve network throughput and single-user rate experience.

[0005] In MU-MIMO scenarios, terminals are subject to interference from multiplexed terminals. Previously, strong interference between terminals could only be avoided through base station scheduling. Because base station scheduling must balance fairness, traffic demand, and actual user location, this type of interference still significantly impacts downlink reception reliability in actual transmission.

[0006] 3GPP (3rd Generation Partnership Project) Rel-17 first proposed terminal-side interference combining and reception. Rel-18 will continue to study terminal-side interference processing.

[0007] Summary of the Invention

[0008] According to some embodiments of the present disclosure, an interference processing method is provided, which is executed by a terminal, including: receiving indication information sent by a base station, wherein the indication information is used to indicate whether the current downlink scheduling includes transmission of a multi-user-multiple input multiple output MU-MIMO multiplexing terminal and / or related information of the multiplexing terminal; and performing interference processing according to the indication information.

[0009] In some embodiments, the relevant information of the multiplexing terminal includes the modulation order of the multiplexing terminal, and the indication information is the first indication information, which is used to indicate that there is no transmission of the multiplexing terminal with MU-MIMO in the current downlink scheduling, or the indication information is the second indication information, which is used to indicate that there is transmission of the multiplexing terminal with MU-MIMO in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order on all resource units allocated to the terminal or all resource units where the multiplexing terminal exists.

[0010] In some embodiments, the indication information is configured as 1-bit information.

[0011] In some embodiments, the relevant information of the multiplexing terminal includes the modulation order of the multiplexing terminal.

[0012] The indication information is the third indication information, which is used to indicate that there is no transmission of MU-MIMO multiplexing terminals in the current downlink scheduling; or the indication information is the fourth indication information, which is used to indicate that there is transmission of MU-MIMO multiplexing terminals in the current downlink scheduling, and the multiplexing terminals and the terminals use the same modulation order on all resource units allocated to the terminals or all resource units where the multiplexing terminals exist; or the indication information is the fifth indication information, which is used to indicate that there is transmission of multiplexing terminals in the current downlink scheduling, and the multiplexing terminals and the terminals use the same modulation order on any resource unit allocated to the terminals or any resource unit where the multiplexing terminals exist.

[0013] In some embodiments, the indication information is configured as 2-bit information.

[0014] In some embodiments, the relevant information of the multiplexing terminal includes the modulation order of the multiplexing terminal, and the indication information is the sixth indication information, which is used to indicate that there is no transmission of the multiplexing terminal with MU-MIMO in the current downlink scheduling; or the indication information is the seventh indication information, which is used to indicate that there is transmission of the multiplexing terminal with MU-MIMO in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order and the type of the same modulation order on all resource units allocated to the terminal or all resource units where the multiplexing terminal exists; or the indication information is the eighth indication information, which is used to indicate that there is transmission of the multiplexing terminal with MU-MIMO in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order on any resource unit allocated to the terminal or any resource unit where the multiplexing terminal exists.

[0015] In some embodiments, the indication information is configured as 3-bit information.

[0016] In some embodiments, the types include: QPSK, 16QAM, 64QAM, 256QAM, 1024QAM.

[0017] In some embodiments, the relevant information of the multiplexing terminal includes the configuration of the multiplexing terminal, and the indication information is used to indicate whether the configuration of the multiplexing terminal meets the preset conditions.

[0018] In some embodiments, the preset conditions include: at least one of the time domain resource allocation information of the multiplexing terminal, the frequency domain resource allocation information of the multiplexing terminal, the demodulation reference signal DMRS sequence, the precoding bundling size PRB bundling size, the position information of the channel state information reference signal CSI-RS, and the position information of the phase tracking reference signal PT-RS, which is the same as the configuration of the terminal.

[0019] In some embodiments, the resource elements include physical resource blocks (PRBs) or precoding resource block groups (PRGs).

[0020] In some embodiments, the relevant information of the multiplexing terminal includes: the number of multiplexing terminals, the modulation order of the multiplexing terminal, the time domain resource allocation information of the multiplexing terminal, the frequency domain resource allocation information of the multiplexing terminal, and at least one item of the demodulation reference signal DMRS port allocation information of the multiplexing terminal; the indication information is used to indicate at least one item of the number of multiplexing terminals, the modulation order of the multiplexing terminal, the time domain resource allocation information of the multiplexing terminal, the frequency domain resource allocation information of the multiplexing terminal, and the demodulation reference signal DMRS port allocation information of the multiplexing terminal.

[0021] In some embodiments, the method further includes: pre-negotiating configuration information with the base station, the configuration information including: at least one of the number of multiplexing terminals, the modulation order of the multiplexing terminal, the time domain resource allocation information of the multiplexing terminal, the frequency domain resource allocation information of the multiplexing terminal, and the demodulation reference signal DMRS port allocation information of the multiplexing terminal; the indication information is used to indicate the use of the configuration information or a subset of the configuration information.

[0022] In some embodiments, the indication information includes at least one of the following: configuration information of the demodulation reference signal DMRS of each multiplexing terminal, modulation and coding strategy table information of each multiplexing terminal, configuration information of the channel state information reference signal CSI-RS of each multiplexing terminal, configuration information of the phase tracking reference signal PT-RS of each multiplexing terminal, configuration information of the tracking reference signal TRS of each multiplexing terminal, control channel time domain resource configuration information of each multiplexing terminal, time domain and frequency domain resource allocation information of each multiplexing terminal, number of multiplexing terminals, modulation order information of each multiplexing terminal, number of data layers of each multiplexing terminal, and DMRS port allocation information of each multiplexing terminal.

[0023] In some embodiments, the indication information is carried by at least one of downlink control information DCI, radio resource control RRC signaling, and multimedia access control element MAC CE.

[0024] In some embodiments, the method further includes: sending capability information to the base station, wherein the capability information includes: information indicating whether the terminal supports MU-MIMO inter-terminal interference processing.

[0025] In some embodiments, the capability information includes at least one of the following: information indicating whether the terminal supports interference suppression between MU-MIMO terminals based on an enhanced minimum mean square error interference suppression combined E-MMSE-IRC receiver, and information indicating whether the terminal supports interference cancellation between MU-MIMO terminals based on a low complexity maximum likelihood R-ML receiver.

[0026] In some embodiments, receiving the indication information sent by the base station includes: receiving the indication information sent by the base station when the capability information includes information indicating that the terminal supports interference processing between MU-MIMO terminals.

[0027] In some embodiments, the method further includes: receiving capability query information sent by the base station.

[0028] According to some other embodiments of the present disclosure, an interference processing method is provided, including: sending indication information to a terminal, wherein the indication information is used to indicate whether the current downlink scheduling includes the transmission of a multi-user-multiple-input-multiple-output (MU-MIMO) multiplexing terminal and / or related information of the multiplexing terminal, so that the terminal performs interference processing according to the indication information.

[0029] In some embodiments, the relevant information of the multiplexing terminal includes the modulation order of the multiplexing terminal, and the indication information is the first indication information, which is used to indicate that there is no transmission of the multiplexing terminal with MU-MIMO in the current downlink scheduling, or the indication information is the second indication information, which is used to indicate that there is transmission of the multiplexing terminal with MU-MIMO in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order on all resource units allocated to the terminal or all resource units where the multiplexing terminal exists.

[0030] In some embodiments, the relevant information of the multiplexing terminal includes the modulation order of the multiplexing terminal, and the indication information is the third indication information, which is used to indicate that there is no transmission of the multiplexing terminal with MU-MIMO in the current downlink scheduling; or the indication information is the fourth indication information, which is used to indicate that there is transmission of the multiplexing terminal with MU-MIMO in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order on all resource units allocated to the terminal or all resource units where the multiplexing terminal exists; or the indication information is the fifth indication information, which is used to indicate that there is transmission of the multiplexing terminal with MU-MIMO in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order on any resource unit allocated to the terminal or any resource unit where the multiplexing terminal exists.

[0031] In some embodiments, the relevant information of the multiplexing terminal includes the modulation order of the multiplexing terminal, and the indication information is the sixth indication information, which is used to indicate that there is no transmission of the multiplexing terminal with MU-MIMO in the current downlink scheduling; or the indication information is the seventh indication information, which is used to indicate that there is transmission of the multiplexing terminal with MU-MIMO in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order and the type of the same modulation order on all resource units allocated to the terminal or all resource units where the multiplexing terminal exists; or the indication information is the eighth indication information, which is used to indicate that there is transmission of the multiplexing terminal with MU-MIMO in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order on any resource unit allocated to the terminal or any resource unit where the multiplexing terminal exists.

[0032] In some embodiments, the relevant information of the multiplexing terminal includes the configuration of the multiplexing terminal, and the indication information is used to indicate whether the configuration of the multiplexing terminal meets the preset conditions.

[0033] In some embodiments, the preset conditions include: at least one of the time domain resource allocation information of the multiplexing terminal, the frequency domain resource allocation information of the multiplexing terminal, the demodulation reference signal DMRS sequence, the precoding bundling size PRB bundling size, the position information of the channel state information reference signal CSI-RS, and the position information of the phase tracking reference signal PT-RS, which is the same as the configuration of the terminal.

[0034] In some embodiments, the relevant information of the multiplexing terminal includes: the number of multiplexing terminals, the modulation order of the multiplexing terminal, the time domain resource allocation information of the multiplexing terminal, the frequency domain resource allocation information of the multiplexing terminal, and at least one item of the demodulation reference signal DMRS port allocation information of the multiplexing terminal; the indication information is used to indicate at least one item of the number of multiplexing terminals, the modulation order of the multiplexing terminal, the time domain resource allocation information of the multiplexing terminal, the frequency domain resource allocation information of the multiplexing terminal, and the demodulation reference signal DMRS port allocation information of the multiplexing terminal.

[0035] In some embodiments, the indication information includes at least one of the following: configuration information of the demodulation reference signal DMRS of each multiplexing terminal, modulation and coding strategy table information of each multiplexing terminal, configuration information of the channel state information reference signal CSI-RS of each multiplexing terminal, configuration information of the phase tracking reference signal PT-RS of each multiplexing terminal, configuration information of the tracking reference signal TRS of each multiplexing terminal, control channel time domain resource configuration information of each multiplexing terminal, time domain and frequency domain resource allocation information of each multiplexing terminal, number of multiplexing terminals, modulation order information of each multiplexing terminal, number of data layers of each multiplexing terminal, and DMRS port allocation information of each multiplexing terminal.

[0036] In some embodiments, the method further includes: receiving capability information sent by the terminal, wherein the capability information includes: information indicating whether the terminal supports interference processing between MU-MIMO terminals; wherein sending indication information to the terminal includes: sending indication information to the terminal when the capability information includes information indicating that the terminal supports interference processing between MU-MIMO terminals.

[0037] In some embodiments, the method further includes: sending capability query information to the terminal.

[0038] According to some further embodiments of the present disclosure, a terminal is provided, comprising: a receiving module for receiving indication information sent by a base station, wherein the indication information is used to indicate whether there is transmission of a multiple-user-multiple-input-multiple-output (MU-MIMO) multiplexing terminal and / or related information of the multiplexing terminal in the current downlink scheduling; and an interference processing module for performing interference processing according to the indication information.

[0039] According to some further embodiments of the present disclosure, a base station is provided, comprising: a sending module, configured to send indication information to a terminal, wherein the indication information is used to indicate whether the current downlink scheduling includes transmission of a multiplexing terminal of a multi-user-multiple-input-multiple-output (MU-MIMO) and / or related information of the multiplexing terminal; so that the terminal performs interference processing according to the indication information.

[0040] According to some further embodiments of the present disclosure, an electronic device is provided, comprising: a processor; and a memory coupled to the processor, for storing instructions, which, when executed by the processor, causes the processor to execute the interference handling method of any of the aforementioned embodiments.

[0041] According to some further embodiments of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored, wherein when the program is executed by a processor, the interference processing method of any of the aforementioned embodiments is implemented.

[0042] According to some further embodiments of the present disclosure, an interference processing system is provided, including: a terminal according to any of the aforementioned embodiments and a base station according to any of the aforementioned embodiments.

[0043] According to some further embodiments of the present disclosure, a computer program product is provided, comprising: instructions, which, when executed by the processor, cause the processor to execute the interference handling method according to any embodiment of the present disclosure.

[0044] According to some further embodiments of the present disclosure, a computer program is provided, comprising: instructions, which, when executed by the processor, cause the processor to execute the interference handling method according to any embodiment of the present disclosure.

[0045] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0047] FIG1 is a schematic flow chart showing an interference handling method according to some embodiments of the present disclosure.

[0048] FIG2 is a schematic flow chart showing interference handling methods according to other embodiments of the present disclosure.

[0049] FIG3 shows a schematic structural diagram of a terminal according to some embodiments of the present disclosure.

[0050] FIG4 shows a schematic structural diagram of a base station according to some embodiments of the present disclosure.

[0051] FIG5 is a schematic structural diagram of an electronic device according to some embodiments of the present disclosure.

[0052] FIG6 is a schematic structural diagram of an electronic device according to some other embodiments of the present disclosure.

[0053] FIG7 shows a schematic structural diagram of an interference processing system according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0055] The inventors discovered that current standards primarily propose that terminals support advanced reception for interference handling, but lack relevant design for the signaling process for implementing interference handling on the terminal side. In light of this, the present disclosure proposes an interference handling method, system, base station, and terminal.

[0056] The present disclosure proposes an interference processing method, which is described below with reference to FIG1 and FIG2 .

[0057] FIG1 is a flow chart of some embodiments of the interference handling method disclosed herein. As shown in FIG1 , the method of this embodiment includes steps S102 to S104.

[0058] In step S102, the base station sends indication information to the terminal, and correspondingly, the terminal receives the indication information sent by the base station.

[0059] In some embodiments, the indication information is used to indicate whether there is a transmission of a multiplexing terminal of MU-MIMO and / or related information of the multiplexing terminal in the current downlink scheduling. The terminal receiving the indication information can be used as a target terminal (Target UE). The base station co-schedules the target terminal with one or more other terminals to perform MU-MIMO transmission. Among the multiple terminals of the co-scheduling, for the target terminal, the other terminals can be referred to as multiplexing terminals or co-scheduled terminals (Co-scheduled UE). That is, the indication information can be used to indicate whether there is a co-scheduled terminal and related information of the co-scheduled terminal.

[0060] The indication information is used as auxiliary information to assist the terminal in interference processing. In some embodiments, the indication information is carried by at least one of DCI (Downlink Control Information), RRC (Radio Resource Control) signaling, and MAC CE (Medium Access Control-Control Element).

[0061] The indication information may be expressed in different forms. In some embodiments, the relevant information of the multiplexing terminal includes the modulation order of the multiplexing terminal, and the indication information is first indication information, which is used to indicate that there is no MU-MIMO multiplexing terminal transmission in the current downlink scheduling, or the indication information is second indication information, which is used to indicate that there is MU-MIMO multiplexing terminal transmission in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order on all resource units allocated to the terminal or all resource units where the multiplexing terminal exists.

[0062] In some embodiments, the resource unit includes a PRB (Physical Resource Block) or a PRG (Precoding resource block group).

[0063] For example, the indication information is configured as 1-bit information. For example, the first indication information is 0, indicating that there is no transmission of a multiplexing terminal of MU-MIMO in the current downlink scheduling, and the second indication information is 1, indicating that there is transmission of a multiplexing terminal of MU-MIMO in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order on all resource units allocated to the terminal or all resource units where the multiplexing terminal exists.

[0064] By adopting the above embodiment, the base station can inform the target terminal whether there is any transmission of a multiplexing terminal of MU-MIMO in the current downlink scheduling through only 1-bit indication information. On all allocated resource units of the target terminal or all resource units with multiplexing terminals, all multiplexing terminals in the current downlink scheduling use the same modulation order as the target terminal.

[0065] In some embodiments, the relevant information of the multiplexing terminal includes the configuration of the multiplexing terminal, and the indication information is used to indicate whether the configuration of the multiplexing terminal meets the preset conditions (default configuration), or the indication information is used to indicate that when there is a transmission of the multiplexing terminal with MU-MIMO in the previous downlink scheduling, the configuration of the multiplexing terminal meets the preset conditions, or the indication information is directly used to indicate that the configuration of the multiplexing terminal meets the preset conditions. The indication information can also be used to indicate that when there is a transmission of the multiplexing terminal with MU-MIMO in the previous downlink scheduling, the configuration of the multiplexing terminal does not meet the preset conditions.

[0066] The preset conditions include: at least one of the time domain resource allocation information of the multiplexing terminal, the frequency domain resource allocation information of the multiplexing terminal, the DMRS (Demodulation Reference Signal) sequence, the PRB bundling size, the CSI-RS (Channel State Information Reference Signal) position information, and the PT-RS (Phase-tracking reference signals) position information, which is the same as the configuration of the terminal.

[0067] For example, the indication information is the first indication information, which is also used to indicate that there is MU-MIMO multiplexing terminal transmission in the current downlink scheduling, and the configuration of the multiplexing terminal does not meet the preset conditions. The indication information is the second indication information, which is used to indicate that there is MU-MIMO multiplexing terminal transmission in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order on all allocated resource units of the terminal or all resource units where the multiplexing terminal exists, and the configuration of the multiplexing terminal meets the preset conditions.

[0068] In some embodiments, the indication information is the third indication information, which is used to indicate that there is no transmission of a multiplexing terminal with MU-MIMO in the current downlink scheduling; or, the indication information is the fourth indication information, which is used to indicate that there is transmission of a multiplexing terminal with MU-MIMO in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order on all resource units allocated to the terminal or all resource units where the multiplexing terminal exists; or, the indication information is the fifth indication information, which is used to indicate that there is transmission of a multiplexing terminal with MU-MIMO in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order on any resource unit allocated to the terminal or any resource unit where the multiplexing terminal exists.

[0069] For example, the indication information is configured as 2-bit information. For example, the third indication information is 00, indicating that there is no transmission of MU-MIMO multiplexing terminal in the current downlink scheduling, the fourth indication information is 01, indicating that there is transmission of MU-MIMO multiplexing terminal in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order on all resource units allocated to the terminal or all resource units where the multiplexing terminal exists, and the fifth indication information is 10, indicating that there is transmission of MU-MIMO multiplexing terminal in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order on any resource unit allocated to the terminal or any resource unit where the multiplexing terminal exists. The indication information can also be set to 11 to indicate other situations, such as indicating that there is transmission of MU-MIMO multiplexing terminal in the current downlink scheduling, but the modulation order of the multiplexing terminal and the terminal is different, which is not limited to the examples given.

[0070] On any resource unit allocated to the terminal or any resource unit where a multiplexing terminal exists, the multiplexing terminal and the terminal use the same modulation order. This means that on the first resource unit, the multiplexing terminal and the terminal both use the first modulation order, and on the second resource unit, the multiplexing terminal and the terminal both use the second modulation order... That is, on the same resource unit, the multiplexing terminal and the terminal use the same modulation order, and between different resource units, the multiplexing terminal and the terminal can use different modulation orders.

[0071] In some embodiments, the indication information is the third indication information, and is also used to indicate that there is transmission of MU-MIMO multiplexing terminals in the current downlink scheduling, and the configuration of the multiplexing terminal does not meet the preset conditions. When the indication information is the fourth indication information or the fifth indication information, it is also used to indicate that there is transmission of MU-MIMO multiplexing terminals in the current downlink scheduling, and the configuration of the multiplexing terminal meets the preset conditions.

[0072] Using the above embodiment, the base station can inform the target terminal through 2-bit indication information whether there is MU-MIMO multiplexing terminal transmission in the current downlink scheduling, or inform the target terminal whether all the multiplexing terminals in the current downlink scheduling have the same modulation order as the target terminal on all the resource units allocated to the target terminal or all the resource units where the multiplexing terminals exist; if all the multiplexing terminals in the current downlink scheduling do not use the same modulation order as the target terminal on all the resource units allocated to the target terminal or all the resource units where the multiplexing terminals exist, the target terminal is informed whether all the multiplexing terminals in the current downlink scheduling have the same modulation order as the target terminal on any one of the resource units allocated to the target terminal or any one of the resource units where the multiplexing terminals exist.

[0073] In some embodiments, the indication information is the sixth indication information, which is used to indicate that there is no transmission of a multiplexing terminal with MU-MIMO in the current downlink scheduling; or the indication information is the seventh indication information, which is used to indicate that there is transmission of a multiplexing terminal with MU-MIMO in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order and the type of the same modulation order on all resource units allocated to the terminal or all resource units where the multiplexing terminal exists; or the indication information is the eighth indication information, which is used to indicate that there is transmission of a multiplexing terminal with MU-MIMO in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order on any resource unit allocated to the terminal or any resource unit where the multiplexing terminal exists.

[0074] For example, the indication information is configured as 3 bits. The seventh indication information can be further divided into multiple sub-information based on the type and amount of modulation order. For example, the types of modulation order include: QPSK, 16QAM, 64QAM, 256QAM, and 1024QAM. The seventh indication information can be divided into first to fifth sub-information.

[0075] For example, the sixth indication information is 000, indicating that there is no transmission of MU-MIMO multiplexing terminals in the current downlink scheduling, the first sub-information is 001, indicating that there is transmission of MU-MIMO multiplexing terminals in the current downlink scheduling, and on all resource units allocated to the terminal or all resource units where the multiplexing terminals exist, the multiplexing terminals and the terminals use the same modulation order and the modulation order is QPSK, the second sub-information is 010, indicating that there is transmission of MU-MIMO multiplexing terminals in the current downlink scheduling, and on all resource units allocated to the terminal or all resource units where the multiplexing terminals exist, the multiplexing terminals and the terminals use the same modulation order and the modulation order is 16QAM, the third sub-information is 011, indicating that there is transmission of MU-MIMO multiplexing terminals in the current downlink scheduling, and on all resource units allocated to the terminal or all resource units where the multiplexing terminals exist, the multiplexing terminals and the terminals use the same modulation order and the modulation order is 64QAM, and the fourth sub-information is 100, indicating that there is MU-MIMO in the current downlink scheduling. The transmission of the multiplexing terminal of the terminal, on all the resource units allocated to the terminal or all the resource units where the multiplexing terminal exists, the multiplexing terminal and the terminal use the same modulation order and the modulation order is 256QAM, the fifth sub-information is 101, indicating that the transmission of the multiplexing terminal with MU-MIMO exists in the current downlink scheduling, on all the resource units allocated to the terminal or all the resource units where the multiplexing terminal exists, the multiplexing terminal and the terminal use the same modulation order and the modulation order is 1024QAM, the eighth indication information is 110, indicating that the transmission of the multiplexing terminal with MU-MIMO exists in the current downlink scheduling, on any resource unit allocated to the terminal or any resource unit where the multiplexing terminal exists, the multiplexing terminal and the terminal use the same modulation order. The multiplexing terminal can be a terminal with the same root DMRS sequence (root DMRS sequence) as the terminal.

[0076] The indication information may also be configured as 111 to indicate other situations, such as indicating that there is MU-MIMO multiplexing terminal transmission in the current downlink scheduling, but the modulation order of the multiplexing terminal is different from that of the terminal, and is not limited to the examples given.

[0077] In some embodiments, the indication information is the sixth indication information, and is also used to indicate that there is transmission of MU-MIMO multiplexing terminals in the current downlink scheduling, and the configuration of the multiplexing terminal does not meet the preset conditions. When the indication information is the seventh indication information or the eighth indication information, it is also used to indicate that there is transmission of MU-MIMO multiplexing terminals in the current downlink scheduling, and the configuration of the multiplexing terminal meets the preset conditions.

[0078] Using the above embodiment, the base station can inform the target terminal through 3-bit indication information whether there is a transmission of a MU-MIMO multiplexing terminal in the current downlink scheduling, or inform the target terminal whether the multiplexing terminal currently scheduled downlink has the same modulation order as the target terminal and is one of (QPSK / 16QAM / 64QAM / 256QAM / 1024QAM) on all the allocated resource units of the target terminal or all the resource units where the multiplexing terminal exists; if all the multiplexing terminals currently scheduled downlink do not use the same modulation order as the target terminal on all the allocated resource units of the target terminal or all the resource units where the multiplexing terminal exists, the target terminal is informed whether the multiplexing terminal currently scheduled downlink has the same modulation order as the target terminal on any one of the allocated resource units of the target terminal or any one of the resource units where the multiplexing terminal exists.

[0079] In some embodiments, the terminal and the base station pre-negotiate configuration information, and the configuration information includes at least one of the number of multiplexed terminals, the modulation order of the multiplexed terminal, the time domain resource allocation information of the multiplexed terminal, the frequency domain resource allocation information of the multiplexed terminal, and the DMRS port allocation information of the multiplexed terminal.

[0080] In some embodiments, the indication information is used to indicate the use of configuration information or a subset of configuration information.

[0081] The base station (or network) and the terminal pre-negotiate a series of configuration information. This configuration information can be fixed in the protocol or issued by the network through high-level information. During actual transmission, the base station can use indication information to inform the terminal which configuration or subset of configurations the current transmission belongs to.

[0082] Different configuration information can be grouped into multiple configuration information groups, with each configuration information group containing different values, including at least one of the following: the number of multiplexing terminals, the modulation order of the multiplexing terminals, the time domain resource allocation information of the multiplexing terminals, the frequency domain resource allocation information of the multiplexing terminals, and the DMRS port allocation information of the multiplexing terminals. The indication information is used to indicate the configuration information group to be used.

[0083] For example, multiple combinations of the number of multiplexed terminals, modulation order, time-frequency resource allocation, and DMRS port allocation are pre-agreed and indicated by different indexes. Then, during actual transmission, the network can indicate the terminal's configuration information group of the current multiplexed terminal by sending index information (e.g., sending 1 indicates: 1 terminal, QPSK, full bandwidth and full time slot transmission, DMRS port 0).

[0084] In some embodiments, the relevant information of the multiplexing terminal includes: at least one of the number of multiplexing terminals, the modulation order of the multiplexing terminal, the time domain resource allocation information of the multiplexing terminal, the frequency domain resource allocation information of the multiplexing terminal, and the DMRS port allocation information of the multiplexing terminal; the indication information is used to indicate at least one of the number of multiplexing terminals, the modulation order of the multiplexing terminal, the time domain resource allocation information of the multiplexing terminal, the frequency domain resource allocation information of the multiplexing terminal, and the DMRS port allocation information of the multiplexing terminal.

[0085] The base station may directly send the above configuration information to the terminal through indication information.

[0086] In some embodiments, the indication information includes at least one of the following: DMRS configuration information of each multiplexing terminal, modulation and coding strategy table information of each multiplexing terminal, CSI-RS configuration information of each multiplexing terminal, PT-RS configuration information of each multiplexing terminal, TRS (Tracking Reference Signal) configuration information of each multiplexing terminal, control channel time domain resource configuration information of each multiplexing terminal, time domain and frequency domain resource allocation information of each multiplexing terminal, number of multiplexing terminals, modulation order information of each multiplexing terminal, number of data layers of each multiplexing terminal, DMRS port allocation information of each multiplexing terminal. In this case, the indication information indicates by default that there is a transmission of a multiplexing terminal with MU-MIMO in the current downlink scheduling, and may also additionally include a bit indicating that there is a transmission of a multiplexing terminal with MU-MIMO in the current downlink scheduling.

[0087] For example, DMRS configuration information includes: DMRS additional position (dmrs-AdditionalPosition), DMRS type (dmrs-Type), maximum length (maxLength). For example, DMRS port allocation information includes DMRS port index (PortIndex).

[0088] When there is information about multiple multiplexing terminals, the base station may distinguish different multiplexing terminals by additionally sending an identifier (eg, an index number).

[0089] In step S104, the terminal performs interference processing according to the instruction information.

[0090] In some embodiments, if the terminal obtains the time domain resource allocation information and the frequency domain resource allocation information of the multiplexing terminal through indication information or pre-negotiation, it can determine the time-frequency domain resources where the multiplexing terminal interferes, and thus perform interference processing on the corresponding time-frequency domain resources. The target terminal can assume that there is interference on the time-frequency resources used by each multiplexing terminal and needs to apply the interference processing algorithm, thereby reducing the resource consumption of the terminal to perform additional detection on each time-frequency resource and then decide whether to perform interference processing.

[0091] In some embodiments, if the terminal learns the number of multiplexing terminals and / or the DMRS port allocation information of the multiplexing terminals through indication information or through prior negotiation, the number of multiplexing terminals that need to be interfered with can be determined, and interference processing can be performed according to the number of multiplexing terminals that need to be interfered with.

[0092] In some embodiments, if the terminal obtains the DMRS configuration information and DMRS sequence of the multiplexing terminal through indication information or pre-negotiation, or if the DMRS sequence of the multiplexing terminal is the same as the terminal configuration, channel estimation can be performed for the multiplexing terminal based on the DMRS sequence of the multiplexing terminal. This reduces the resource consumption of the terminal needing to traverse all possible DMRS generation sequences according to the protocol to attempt channel estimation for the multiplexing terminal.

[0093] In some embodiments, if the terminal obtains the precoding bundling size (PRB bundling size) of the multiplexing terminal through indication information or pre-negotiation, or the precoding bundling size of the multiplexing terminal is the same as the terminal configuration, channel estimation can be performed according to the precoding bundling size of the multiplexing terminal as the granularity to obtain greater channel estimation accuracy. Otherwise, the terminal can only perform channel estimation in units of each PRB, which reduces the channel estimation accuracy.

[0094] In some embodiments, if the terminal obtains the CSI-RS / PT-RS / TRS configuration information of the multiplexing terminal, the position information of the CSI-RS / PT-RS / TRS, or the position information of the CSI-RS / PT-RS / TRS of the multiplexing terminal through indication information or pre-negotiation, the terminal determines that when the CSI-RS / PT-RS / TRS of the multiplexing terminal overlaps with the data resources of the terminal, it is necessary to use QPSK for interference processing on the corresponding resources, and use the modulation order indicated by the indication information on non-overlapping resources.

[0095] In some embodiments, if the terminal obtains the modulation and coding strategy information of the multiplexing terminal through indication information or through pre-negotiation, and supports blind detection of the modulation order, blind detection can be performed based on the modulation and coding strategy information, which can reduce the amount of blind detection calculations and improve the detection accuracy.

[0096] In some embodiments, if the terminal obtains the control channel time domain resource configuration information of the multiplexed terminal through indication information or pre-negotiation, it can determine the time domain resources that the data channel may occupy (for example, a total of 14 symbols, namely data channel + control channel + blank symbol) based on the information, thereby performing interference processing on the time domain resources occupied by the data channel.

[0097] In some embodiments, if the terminal obtains information about the number of data layers of multiplexed terminals through indication information or pre-negotiation, it can determine several multiplexed terminals for channel estimation and then perform interference suppression.

[0098] In some embodiments, if the terminal learns the modulation order of the multiplexed terminal through indication information or pre-negotiation, and the terminal supports interference cancellation between MU-MIMO terminals based on an R-ML (low complexity maximum likelihood) receiver, the terminal performs channel estimation based on the DMRS of the terminal and the multiplexed terminal, and obtains the channel information h of the terminal and the multiplexed terminal respectively; the terminal receives the corresponding transmission signal y of the terminal and the multiplexed terminal on the allocated time-frequency resources; the terminal traverses all symbol combinations s1, s2, s3... sent by the terminal and the multiplexed terminal under the modulation order according to the modulation order of the terminal and the multiplexed terminal, and the terminal determines the Euclidean distance between y and hs1, hs2, hs3; the minimum value of each Euclidean distance is obtained, and the log-likelihood ratio (LLR) of the transmission bit is calculated according to the R-ML formula given below.

[0099] y represents the received symbol vector; H represents the channel matrix of the multiplexing terminal and the target terminal (this terminal); s represents the detected symbol; σ represents the noise; X 0 Indicates the symbol set corresponding to bit 0 of the transmitted symbol; X 1 The transmitted symbol corresponds to the set of symbols whose bit is 1; L is the log-likelihood ratio (LLR) of the bit.

[0100] When the terminal supports interference cancellation between MU-MIMO terminals based on an E-MMSE-IRC (Enhanced Minimum Mean Square Error Interference Rejection Combining) receiver, the terminal performs interference suppression according to the following formula.

[0101] represents the joint channel matrix of the multiplexing terminal and the target terminal (this terminal); RN Identifies the white noise covariance matrix, and y represents the received symbol vector.

[0102] In the method of the above embodiment, the terminal receives indication information sent by the base station, which is used to indicate whether there is a transmission of a MU-MIMO multiplexing terminal and / or related information of the multiplexing terminal in the current downlink scheduling, and the terminal performs interference processing according to the indication information. Since the base station side has a clearer understanding of the scheduling status of the MU-MIMO terminal and the related information of the multiplexing terminal, the indication information is sent to the terminal by the base station, and the terminal does not need to perform interference processing after self-detection. The terminal can perform interference processing more accurately and promptly according to the indication information, thereby improving the accuracy of downlink reception. In addition, in the absence of multiplexing terminals, the resource consumption of the terminal is also reduced.

[0103] The method in the above embodiment also proposes pre-configuring multiplexed terminals, with the network indicating the terminals via a limited number of bits. This significantly reduces the PDCCH (Physical Downlink Control Channel) load while ensuring that the terminals handle interference. The transmission of indication information also helps avoid futile channel estimation for multiplexed terminals in non-MU-MIMO scenarios, reducing terminal resource consumption.

[0104] FIG2 is a flow chart of another embodiment of the interference handling method disclosed herein. As shown in FIG2 , the method of this embodiment includes steps S202 to S208 .

[0105] In step S202, the base station sends capability query information to the terminal, and correspondingly, the terminal receives the capability query information sent by the base station.

[0106] In step S204, the terminal sends capability information to the base station, and correspondingly, the base station receives the capability information sent by the terminal.

[0107] In some embodiments, the capability information includes information indicating whether the terminal supports MU-MIMO inter-terminal interference processing.

[0108] In some embodiments, the capability information includes at least one of the following: information indicating whether the terminal supports interference suppression between MU-MIMO terminals based on an E-MMSE-IRC receiver, and information indicating whether the terminal supports interference elimination between MU-MIMO terminals based on an R-ML receiver.

[0109] In step S206, when the capability information includes information indicating that the terminal supports interference processing between MU-MIMO terminals, the base station sends the indication information to the terminal, and correspondingly, the terminal receives the indication information sent by the base station.

[0110] The indication information can distinguish whether the terminal supports an E-MMSE-IRC receiver or an R-ML receiver and send them separately, or the same information can be sent. For example, the modulation order, the location information or configuration information of the CSI-RS / PT-RS / TRS, the modulation and coding strategy table information, etc. are only applicable to the terminal supporting the R-ML receiver. When the terminal supports the R-ML receiver, the indication information is used to indicate the modulation order of the multiplexed terminal, the location information or configuration information of the CSI-RS / PT-RS / TRS, and the modulation and coding strategy table information related information. For example, on all resource units allocated to the terminal or all resource units where the multiplexed terminal exists, the multiplexed terminal and the terminal use the same modulation order. Please refer to the above embodiment and will not repeat them here.

[0111] In step S208, the terminal performs interference processing according to the instruction information.

[0112] The terminal uses an E-MMSE-IRC receiver or an R-ML receiver to suppress or eliminate interference.

[0113] The present disclosure also provides a terminal, which will be described below in conjunction with FIG3 .

[0114] FIG3 is a structural diagram of some embodiments of the terminal disclosed herein. As shown in FIG3 , the terminal 30 of this embodiment includes: a receiving module 310 and an interference processing module 320 .

[0115] The receiving module 310 is used to receive indication information sent by the base station, wherein the indication information is used to indicate whether there is transmission of a multiple-user-multiple-input multiple-output MU-MIMO multiplexing terminal and / or related information of the multiplexing terminal in the current downlink scheduling.

[0116] The interference processing module 320 is configured to perform interference processing according to the instruction information.

[0117] In some embodiments, the terminal 30 further includes a sending module 330 configured to send capability information to the base station, wherein the capability information includes: information indicating whether the terminal supports interference processing between MU-MIMO terminals. The capability information includes at least one of the following: information indicating whether the terminal supports interference suppression between MU-MIMO terminals based on an enhanced minimum mean square error interference suppression combined E-MMSE-IRC receiver, and information indicating whether the terminal supports interference cancellation between MU-MIMO terminals based on a low complexity maximum likelihood R-ML receiver.

[0118] In some embodiments, when the capability information includes information indicating that the terminal supports interference processing between MU-MIMO terminals, the receiving module 310 is configured to receive indication information sent by the base station.

[0119] In some embodiments, the receiving module 310 is further configured to receive capability query information sent by the base station. The sending module 330 is configured to send capability information to the base station in response to the capability query information.

[0120] The specific content and form of the indication information can be referred to the above embodiments and will not be described in detail here.

[0121] The present disclosure also provides a base station, which will be described below in conjunction with FIG4 .

[0122] FIG4 is a structural diagram of some embodiments of the base station disclosed herein. As shown in FIG4 , the base station 40 of this embodiment includes: a sending module 410 .

[0123] The sending module 410 is used to send indication information to the terminal, wherein the indication information is used to indicate whether the current downlink scheduling includes the transmission of a multiple-user-multiple-input multiple-output MU-MIMO multiplexing terminal and / or related information of the multiplexing terminal; so that the terminal performs interference processing according to the indication information.

[0124] In some embodiments, the base station 40 further includes a receiving module 420 configured to receive capability information sent by a terminal, wherein the capability information includes information indicating whether the terminal supports interference processing between MU-MIMO terminals. The sending module 410 is configured to send indication information to the terminal if the capability information includes information indicating that the terminal supports interference processing between MU-MIMO terminals.

[0125] In some embodiments, the sending module 410 is further configured to send capability query information to the terminal.

[0126] The specific content and form of the indication information can be referred to the above embodiments and will not be described in detail here.

[0127] The electronic devices (terminals or base stations) in the embodiments of the present disclosure may be implemented by various computing devices or computer systems, which will be described below in conjunction with FIG. 5 and FIG. 5 .

[0128] FIG5 is a block diagram of some embodiments of the electronic device disclosed herein. As shown in FIG5 , the electronic device 50 of this embodiment includes a memory 510 and a processor 520 coupled to the memory 510 . The processor 520 is configured to execute the interference handling method of any of the embodiments of the present disclosure based on instructions stored in the memory 510 .

[0129] The memory 510 may include, for example, a system memory, a fixed non-volatile storage medium, etc. The system memory may store, for example, an operating system, an application program, a boot loader, a database, and other programs.

[0130] FIG6 is a block diagram of another embodiment of the electronic device disclosed herein. As shown in FIG6 , the electronic device 60 of this embodiment includes: a memory 610 and a processor 620, which are similar to the memory 510 and the processor 520, respectively. It may also include an input / output interface 630, a network interface 640, a storage interface 650, and the like. These interfaces 630, 640, 650 and the memory 610 and the processor 620 may be connected, for example, via a bus 660. The input / output interface 630 provides a connection interface for input / output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 640 provides a connection interface for various networked devices, such as a database server or a cloud storage server. The storage interface 650 provides a connection interface for external storage devices such as SD cards and USB flash drives.

[0131] The present disclosure also provides an interference processing system, which will be described below in conjunction with FIG. 7 .

[0132] Figure 7 is a block diagram of some embodiments of the interference handling system disclosed herein. As shown in Figure 7 , the system 7 of this embodiment includes: a terminal 30 and a base station 40 according to any of the aforementioned embodiments. One base station 40 can correspond to multiple terminals 30, each of which can serve as a target terminal.

[0133] The present disclosure further provides a computer program product, comprising: instructions, which, when executed by the processor, enable the processor to perform the interference handling method according to any embodiment of the present disclosure.

[0134] The present disclosure further provides a computer program, comprising: instructions, which, when executed by the processor, enable the processor to perform the interference handling method according to any embodiment of the present disclosure.

[0135] Those skilled in the art will appreciate that embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable non-transient storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0136] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0137] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0138] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0139] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. An interference processing method, performed by a terminal, comprising: Receiving indication information sent by a base station, wherein the indication information is used to indicate whether there is transmission of a multiplexing terminal of a multi-user-multiple-input-multiple-output (MU-MIMO) and / or related information of the multiplexing terminal in the current downlink scheduling; Interference processing is performed according to the indication information.

2. The interference processing method according to claim 1, wherein: The relevant information of the multiplexing terminal includes the modulation order of the multiplexing terminal, The indication information is first indication information, which is used to indicate that there is no transmission of the multiplexed terminal of MU-MIMO in the current downlink scheduling, or The indication information is the second indication information, which is used to indicate that the current downlink scheduling includes the transmission of a multiplexing terminal of MU-MIMO, and that all resource units allocated to the terminal or all resource units existing in the multiplexing terminal use the same modulation order as the terminal.

3. The interference processing method according to claim 2, wherein: The indication information is configured as 1-bit information.

4. The interference processing method according to claim 1, wherein: The relevant information of the multiplexing terminal includes the modulation order of the multiplexing terminal, The indication information is third indication information, which is used to indicate that there is no transmission of the multiplexed terminal of MU-MIMO in the current downlink scheduling; or The indication information is fourth indication information, which is used to indicate that the transmission of the multiplexing terminal with MU-MIMO exists in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order on all resource units allocated to the terminal or all resource units where the multiplexing terminal exists; or The indication information is the fifth indication information, which is used to indicate that the current downlink scheduling includes the transmission of a multiplexing terminal of MU-MIMO, and that the multiplexing terminal and the terminal use the same modulation order on any resource unit allocated to the terminal or any resource unit where the multiplexing terminal exists.

5. The interference processing method according to claim 4, wherein: The indication information is configured as 2-bit information.

6. The interference handling method according to claim 1, wherein: The relevant information of the multiplexing terminal includes the modulation order of the multiplexing terminal, The indication information is the sixth indication information, which is used to indicate that there is no MU-MIMO multiplexing in the current downlink scheduling. Terminal transmission; or The indication information is seventh indication information, and is used to indicate that the transmission of a multiplexing terminal with MU-MIMO exists in the current downlink scheduling, and that the multiplexing terminal and the terminal use the same modulation order and the type of the same modulation order on all resource units allocated to the terminal or all resource units where the multiplexing terminal exists; or The indication information is the eighth indication information, which is used to indicate that the current downlink scheduling includes the transmission of a multiplexing terminal of MU-MIMO, and that the multiplexing terminal and the terminal use the same modulation order on any resource unit allocated to the terminal or any resource unit where the multiplexing terminal exists.

7. The interference processing method according to claim 6, wherein: The indication information is configured as 3-bit information.

8. The interference processing method according to claim 6 or 7, wherein: The types include: QPSK, 16QAM, 64QAM, 256QAM, 1024QAM.

9. The interference processing method according to any one of claims 1 to 8, wherein: The relevant information of the multiplexing terminal includes the configuration of the multiplexing terminal, and the indication information is used to indicate whether the configuration of the multiplexing terminal meets the preset condition.

10. The interference processing method according to claim 9, wherein: The preset conditions include: at least one of the time domain resource allocation information of the multiplexing terminal, the frequency domain resource allocation information of the multiplexing terminal, the demodulation reference signal DMRS sequence, the precoding bundling size PRB bundling size, the position information of the channel state information reference signal CSI-RS, and the position information of the phase tracking reference signal PT-RS, which is the same as the configuration of the terminal.

11. The interference processing method according to any one of claims 2 to 8, wherein the resource unit comprises a physical resource block (PRB) or a precoding resource block group (PRG).

12. The interference processing method according to any one of claims 1, 9-10, wherein: The relevant information of the multiplexing terminal includes: at least one of the number of the multiplexing terminals, the modulation order of the multiplexing terminal, the time domain resource allocation information of the multiplexing terminal, the frequency domain resource allocation information of the multiplexing terminal, and the demodulation reference signal DMRS port allocation information of the multiplexing terminal; The indication information is used to indicate at least one of the number of the multiplexing terminals, the modulation order of the multiplexing terminals, the time domain resource allocation information of the multiplexing terminals, the frequency domain resource allocation information of the multiplexing terminals, and the demodulation reference signal DMRS port allocation information of the multiplexing terminals.

13. The interference processing method according to any one of claims 1 to 12, further comprising: pre-negotiate configuration information with the base station, the configuration information including: the number of the multiplexing terminals, the At least one of the modulation order of the multiplexing terminal, the time domain resource allocation information of the multiplexing terminal, the frequency domain resource allocation information of the multiplexing terminal, and the demodulation reference signal DMRS port allocation information of the multiplexing terminal; The indication information is used to indicate the use of the configuration information or a subset of the configuration information.

14. The interference processing method according to any one of claims 1, 9 to 11, and 13, wherein: The indication information includes at least one of the following: configuration information of the demodulation reference signal DMRS of each multiplexing terminal, modulation and coding strategy table information of each multiplexing terminal, configuration information of the channel state information reference signal CSI-RS of each multiplexing terminal, configuration information of the phase tracking reference signal PT-RS of each multiplexing terminal, configuration information of the tracking reference signal TRS of each multiplexing terminal, control channel time domain resource configuration information of each multiplexing terminal, time domain and frequency domain resource allocation information of each multiplexing terminal, number of multiplexing terminals, modulation order information of each multiplexing terminal, number of data layers of each multiplexing terminal, and DMRS port allocation information of each multiplexing terminal.

15. The interference processing method according to any one of claims 1 to 14, wherein: The indication information is carried by at least one of downlink control information DCI, radio resource control RRC signaling, and multimedia access control element MAC CE.

16. The interference processing method according to any one of claims 1 to 15, further comprising: Capability information is sent to the base station, wherein the capability information includes: information indicating whether the terminal supports interference processing between MU-MIMO terminals.

17. The interference processing method according to claim 16, wherein: The capability information includes at least one of the following: information indicating whether the terminal supports interference suppression between MU-MIMO terminals based on an enhanced minimum mean square error interference suppression combined E-MMSE-IRC receiver, and information indicating whether the terminal supports interference elimination between MU-MIMO terminals based on a low complexity maximum likelihood R-ML receiver.

18. The interference processing method according to claim 16 or 17, wherein: The receiving base station sends the indication information including: In a case where the capability information includes information indicating that the terminal supports interference processing between MU-MIMO terminals, indication information sent by the base station is received.

19. The interference processing method according to any one of claims 16 to 18, further comprising: receiving capability query information sent by the base station.

20. An interference processing method, performed by a base station, comprising: Sending indication information to the terminal, wherein the indication information is used to indicate whether there is a transmission of a multiplexing terminal of a multi-user-multiple-input-multiple-output MU-MIMO and / or related information of the multiplexing terminal in the current downlink scheduling, so as to The terminal performs interference processing according to the indication information.

21. The interference processing method according to claim 20, wherein: The relevant information of the multiplexing terminal includes the modulation order of the multiplexing terminal, The indication information is first indication information, which is used to indicate that there is no transmission of the multiplexed terminal of MU-MIMO in the current downlink scheduling, or The indication information is the second indication information, which is used to indicate that the current downlink scheduling includes the transmission of a multiplexing terminal of MU-MIMO, and that all resource units allocated to the terminal or all resource units existing in the multiplexing terminal use the same modulation order as the terminal.

22. The interference processing method according to claim 20, wherein: The relevant information of the multiplexing terminal includes the modulation order of the multiplexing terminal, The indication information is third indication information, which is used to indicate that there is no transmission of the multiplexed terminal of MU-MIMO in the current downlink scheduling; or The indication information is fourth indication information, which is used to indicate that the transmission of the multiplexing terminal with MU-MIMO exists in the current downlink scheduling, and the multiplexing terminal and the terminal use the same modulation order on all resource units allocated to the terminal or all resource units where the multiplexing terminal exists; or The indication information is the fifth indication information, which is used to indicate that the current downlink scheduling includes the transmission of a multiplexing terminal of MU-MIMO, and that the multiplexing terminal and the terminal use the same modulation order on any resource unit allocated to the terminal or any resource unit where the multiplexing terminal exists.

23. The interference processing method according to claim 20, wherein: The relevant information of the multiplexing terminal includes the modulation order of the multiplexing terminal, The indication information is sixth indication information, which is used to indicate that there is no transmission of a multiplexed terminal of MU-MIMO in the current downlink scheduling; or The indication information is seventh indication information, and is used to indicate that the transmission of a multiplexing terminal with MU-MIMO exists in the current downlink scheduling, and that the multiplexing terminal and the terminal use the same modulation order and the type of the same modulation order on all resource units allocated to the terminal or all resource units where the multiplexing terminal exists; or The indication information is the eighth indication information, which is used to indicate that the current downlink scheduling includes the transmission of a multiplexing terminal of MU-MIMO, and that the multiplexing terminal and the terminal use the same modulation order on any resource unit allocated to the terminal or any resource unit where the multiplexing terminal exists.

24. The interference processing method according to any one of claims 20 to 23, wherein: The relevant information of the multiplexing terminal includes the configuration of the multiplexing terminal, and the indication information is used to indicate whether the configuration of the multiplexing terminal meets the preset condition.

25. The interference processing method according to claim 24, wherein: The preset conditions include: at least one of the time domain resource allocation information of the multiplexing terminal, the frequency domain resource allocation information of the multiplexing terminal, the demodulation reference signal DMRS sequence, the precoding bundling size PRB bundling size, the position information of the channel state information reference signal CSI-RS, and the position information of the phase tracking reference signal PT-RS, which is the same as the configuration of the terminal.

26. The interference processing method according to claim 20, wherein: The relevant information of the multiplexing terminal includes: at least one of the number of the multiplexing terminals, the modulation order of the multiplexing terminal, the time domain resource allocation information of the multiplexing terminal, the frequency domain resource allocation information of the multiplexing terminal, and the demodulation reference signal DMRS port allocation information of the multiplexing terminal; The indication information is used to indicate at least one of the number of the multiplexing terminals, the modulation order of the multiplexing terminals, the time domain resource allocation information of the multiplexing terminals, the frequency domain resource allocation information of the multiplexing terminals, and the demodulation reference signal DMRS port allocation information of the multiplexing terminals.

27. The interference processing method according to claim 20, wherein: The indication information includes at least one of the following: configuration information of the demodulation reference signal DMRS of each multiplexing terminal, modulation and coding strategy table information of each multiplexing terminal, configuration information of the channel state information reference signal CSI-RS of each multiplexing terminal, configuration information of the phase tracking reference signal PT-RS of each multiplexing terminal, configuration information of the tracking reference signal TRS of each multiplexing terminal, control channel time domain resource configuration information of each multiplexing terminal, time domain and frequency domain resource allocation information of each multiplexing terminal, number of multiplexing terminals, modulation order information of each multiplexing terminal, number of data layers of each multiplexing terminal, and DMRS port allocation information of each multiplexing terminal.

28. The interference processing method according to any one of claims 20 to 27, further comprising: Receiving capability information sent by a terminal, wherein the capability information includes: information indicating whether the terminal supports interference processing between MU-MIMO terminals; The sending of indication information to the terminal includes: In a case where the capability information includes information indicating that the terminal supports interference processing between MU-MIMO terminals, indication information is sent to the terminal.

29. The interference processing method according to claim 28, further comprising: Send capability query information to the terminal.

30. A terminal, comprising: A receiving module is used to receive the indication information sent by the base station, wherein the indication information is used to indicate the current download Whether there is transmission of a multiplexing terminal of a multi-user-multiple-input-multiple-output MU-MIMO and / or related information of the multiplexing terminal; An interference processing module is used to perform interference processing according to the indication information.

31. A base station, comprising: A sending module is used to send indication information to the terminal, wherein the indication information is used to indicate whether there is a transmission of a multiplexing terminal of a multi-user-multiple-input-multiple-output MU-MIMO and / or related information of the multiplexing terminal in the current downlink scheduling; so that the terminal performs interference processing according to the indication information.

32. An electronic device comprising: processor; as well as A memory coupled to the processor is used to store instructions, and when the instructions are executed by the processor, the processor executes the interference processing method as described in any one of claims 1-29.

33. A computer-readable storage medium having a computer program stored thereon, wherein: When the program is executed by a processor, the steps of the method described in any one of claims 1 to 29 are implemented.

34. An interference processing system, comprising: The terminal as claimed in claim 30 and the base station as claimed in claim 31.

35. A computer program product comprising: Instructions, when the instructions are executed by the processor, cause the processor to execute the interference processing method as described in any one of claims 1-29.

36. A computer program comprising: Instructions, when the instructions are executed by the processor, cause the processor to execute the interference processing method as described in any one of claims 1-29.

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