Interference processing method and system, base station and terminal

Abstract

The invention relates to an interference processing method and system, a base station and a terminal, and relates to the technical field of communication. The interference processing method is executed by a terminal, and comprises the following steps: receiving indication information sent by a base station, the indication information being used for indicating whether current downlink scheduling has transmission of a multiplexing terminal of multi-user-multiple input multiple output (MU-MIMO) and / or related information of the multiplexing terminal; and performing interference processing according to the indication information.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to an interference processing method, system, base station and terminal. Background Art

[0002] 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, which can transmit downlink data to multiple terminals (users) at the same time and on the same frequency, thereby improving network throughput and single-user rate experience.

[0003] In MU-MIMO scenarios, terminals will be interfered by multiplexed terminals. Previously, strong interference between terminals could only be avoided by base station scheduling. Since base station scheduling needs to take into account fairness, traffic demand, and actual user location, this type of interference still has a significant impact on downlink reception reliability in actual transmission.

[0004] 3GPP (3rd Generation Partnership Project) Rel-17 first proposed interference combining reception on the terminal side. Rel-18 will continue to study interference processing on the terminal side. Summary of the invention

[0005] The inventors found that: the current standards mainly propose that the terminal can support advanced reception of interference processing, but there is no relevant design for the signaling process of implementing interference processing on the terminal side. In view of this, the present disclosure proposes an interference processing method, system, base station and terminal.

[0006] 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 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; and performing interference processing according to the indication information.

[0007] 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.

[0008] In some embodiments, the indication information is configured as 1-bit information.

[0009] In some embodiments, the relevant information of the multiplexing terminal includes the modulation order of the multiplexing terminal.

[0010] The indication information is the third indication information, which is used to indicate that there is no transmission of a multiplexed 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 multiplexed terminal with MU-MIMO in the current downlink scheduling, and the multiplexed terminal and the terminal use the same modulation order in all resource units allocated to the terminal or all resource units where the multiplexed terminal exists; or the indication information is the fifth indication information, which is used to indicate that there is transmission of a multiplexed terminal in the current downlink scheduling, and the multiplexed terminal and the terminal use the same modulation order in any resource unit allocated to the terminal or any resource unit where the multiplexed terminal exists.

[0011] In some embodiments, the indication information is configured as 2-bit information.

[0012] 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 in 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 in any resource unit allocated to the terminal or any resource unit where the multiplexing terminal exists.

[0013] In some embodiments, the indication information is configured as 3-bit information.

[0014] In some embodiments, the types include: QPSK, 16QAM, 64QAM, 256QAM, 1024QAM.

[0015] 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 condition.

[0016] 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.

[0017] In some embodiments, the resource elements include physical resource blocks, PRBs, or precoding resource block groups, PRGs.

[0018] 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 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 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.

[0019] In some embodiments, the method also 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.

[0020] 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.

[0021] 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.

[0022] 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 interference processing between MU-MIMO terminals.

[0023] 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 elimination between MU-MIMO terminals based on a low complexity maximum likelihood R-ML receiver.

[0024] 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.

[0025] In some embodiments, the method further includes: receiving capability query information sent by the base station.

[0026] According to some other embodiments of the present disclosure, an interference processing method is provided, comprising: sending indication information to a terminal, 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, so that the terminal performs interference processing according to the indication information.

[0027] 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.

[0028] 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 in 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 in any resource unit allocated to the terminal or any resource unit where the multiplexing terminal exists.

[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 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 in 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 in any resource unit allocated to the terminal or any resource unit where the multiplexing terminal exists.

[0030] 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 condition.

[0031] 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.

[0032] 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 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 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.

[0033] 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.

[0034] In some embodiments, the method also 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.

[0035] In some embodiments, the method further includes: sending capability query information to the terminal.

[0036] According to some further embodiments of the present disclosure, a terminal is provided, comprising: a receiving module, used to receive 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; an interference processing module, used to perform interference processing according to the indication information.

[0037] According to some further embodiments of the present disclosure, a base station is provided, comprising: a sending module, used to send indication information to a terminal, 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; so that the terminal performs interference processing according to the indication information.

[0038] According to some further embodiments of the present disclosure, an electronic device is provided, including: a processor; and a memory coupled to the processor, for storing instructions, which, when executed by the processor, causes the processor to execute an interference handling method as described in any of the aforementioned embodiments.

[0039] 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.

[0040] According to some further embodiments of the present disclosure, an interference processing system is provided, comprising: a terminal of any of the aforementioned embodiments and a base station of any of the aforementioned embodiments.

[0041] In the present disclosure, the terminal receives indication information sent by the base station, and 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, and the terminal performs interference processing according to the indication information. Since the base station side has a clearer understanding of the scheduling of MU-MIMO terminals and related information of multiplexing terminals, the indication information is sent to the terminal through 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 timely according to the indication information, thereby improving the accuracy of downlink reception. And in the absence of multiplexing terminals, the resource consumption of the terminal is also reduced.

[0042] 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

[0043] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying any creative work.

[0044] Figure 1 A schematic flow chart showing an interference handling method according to some embodiments of the present disclosure.

[0045] Figure 2 A schematic flow chart showing interference handling methods according to other embodiments of the present disclosure.

[0046] Figure 3 A schematic diagram showing the structure of a terminal according to some embodiments of the present disclosure.

[0047] Figure 4 A schematic structural diagram of a base station according to some embodiments of the present disclosure is shown.

[0048] Figure 5 A schematic diagram showing the structure of an electronic device according to some embodiments of the present disclosure.

[0049] Figure 6 A schematic diagram showing the structure of an electronic device according to some other embodiments of the present disclosure.

[0050] Figure 7 A schematic diagram showing the structure of an interference processing system according to some embodiments of the present disclosure is shown. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means 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 creative work are within the scope of protection of the present disclosure.

[0052] This disclosure proposes an interference processing method, as follows Figures 1-2 Give a description.

[0053] Figure 1Flowcharts of some embodiments of the interference processing method disclosed in the present invention. Figure 1 As shown, the method of this embodiment includes: steps S102 to S104.

[0054] 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.

[0055] 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 for MU-MIMO transmission. Among the multiple terminals of the co-scheduled, for the target terminal, the other terminals can be referred to as multiplexing terminals or co-scheduled terminals (Co-scheduled UE).

[0056] 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).

[0057] 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 the first indication information, which is used to indicate that the transmission of the multiplexing terminal with MU-MIMO does not exist in the current downlink scheduling, or the indication information is the second 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.

[0058] In some embodiments, the resource unit includes a PRB (Physical Resource Block) or a PRG (Precoding resource block group).

[0059] 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 the multiplexing terminal of MU-MIMO in the current downlink scheduling, and the second indication information is 1, indicating that there is transmission of the 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 with the multiplexing terminal.

[0060] By adopting the above embodiment, the base station can inform the target terminal whether there is any transmission of a multiplexed terminal of MU-MIMO in the current downlink scheduling only through 1-bit indication information. On all allocated resource units of the target terminal or all resource units with multiplexed terminals, all multiplexed terminals in the current downlink scheduling use the same modulation order as the target terminal.

[0061] 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 condition (default configuration), or the indication information is used to indicate that in the case of transmission of the multiplexing terminal with MU-MIMO in the previous downlink scheduling, the configuration of the multiplexing terminal meets the preset condition, or the indication information is directly used to indicate that the configuration of the multiplexing terminal meets the preset condition. The indication information can also be used to indicate that in the previous downlink scheduling, there is transmission of the multiplexing terminal with MU-MIMO, and the configuration of the multiplexing terminal does not meet the preset condition.

[0062] 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) location information, and the PT-RS (Phase-tracking reference signals) location information, which is the same as the configuration of the terminal.

[0063] For example, the indication information is the first indication information, and is also used to indicate that the current downlink scheduling includes the transmission of a multiplexing terminal with MU-MIMO, and the configuration of the multiplexing terminal does not meet the preset conditions. The indication information is the second indication information, and is used to indicate that the current downlink scheduling includes the transmission of a multiplexing terminal with MU-MIMO, and that 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 configuration of the multiplexing terminal meets the preset conditions.

[0064] In some embodiments, the indication information is the third indication information, which is used to indicate that there is no transmission of a multiplexed 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 multiplexed terminal with MU-MIMO in the current downlink scheduling, and the multiplexed terminal and the terminal use the same modulation order in all resource units allocated to the terminal or all resource units where the multiplexed terminal exists; or, the indication information is the fifth indication information, which is used to indicate that there is transmission of a multiplexed terminal with MU-MIMO in the current downlink scheduling, and the multiplexed terminal and the terminal use the same modulation order in any resource unit allocated to the terminal or any resource unit where the multiplexed terminal exists.

[0065] 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 terminals in the current downlink scheduling, the fourth indication information is 01, indicating 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 terminal or all resource units where the multiplexing terminals exist, and the fifth indication information is 10, indicating 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 any resource unit allocated to the terminal or any resource unit where the multiplexing terminals exist. The indication information can also be set to 11 to indicate other situations, such as indicating that there is transmission of MU-MIMO multiplexing terminals in the current downlink scheduling, but the modulation orders of the multiplexing terminals are different, not limited to the examples given.

[0066] In any resource unit allocated to the terminal or any resource unit where the multiplexed terminal exists, the multiplexed terminal and the terminal adopt the same modulation order, which means that in the first resource unit, the multiplexed terminal and the terminal both adopt the first modulation order, and in the second resource unit, the multiplexed terminal and the terminal both adopt the second modulation order... That is, in the same resource unit, the multiplexed terminal and the terminal adopt the same modulation order, and between different resource units, the multiplexed terminal and the terminal can adopt different modulation orders.

[0067] In some embodiments, the indication information is the third indication information, and is also used to indicate that the current downlink scheduling includes the transmission of a multiplexing terminal of MU-MIMO, 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 the current downlink scheduling includes the transmission of a multiplexing terminal of MU-MIMO, and the configuration of the multiplexing terminal meets the preset conditions.

[0068] By adopting the above-mentioned embodiment, the base station can inform the target terminal through 2-bit indication information whether there is MU-MIMO multiplexed terminal transmission in the current downlink scheduling, or inform the target terminal whether all the multiplexed terminals in the current downlink scheduling have the same modulation order as the target terminal in all resource units allocated to the target terminal or all resource units where multiplexed terminals exist; if all the multiplexed terminals in the current downlink scheduling do not use the same modulation order as the target terminal in all resource units allocated to the target terminal or all resource units where multiplexed terminals exist, the target terminal is informed whether all the multiplexed terminals in the current downlink scheduling have the same modulation order as the target terminal in any resource unit allocated to the target terminal or any resource unit where multiplexed terminals exist.

[0069] In some embodiments, the indication information is the sixth indication information, which is used to indicate that there is no transmission of a multiplexed 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 multiplexed terminal with MU-MIMO in the current downlink scheduling, and the multiplexed terminal and the terminal use the same modulation order and the type of the same modulation order in all resource units allocated to the terminal or all resource units where the multiplexed terminal exists; or the indication information is the eighth indication information, which is used to indicate that there is transmission of a multiplexed terminal with MU-MIMO in the current downlink scheduling, and the multiplexed terminal and the terminal use the same modulation order in any resource unit allocated to the terminal or any resource unit where the multiplexed terminal exists.

[0070] For example, the indication information is configured as 3-bit information. The seventh indication information can be further divided into a plurality of sub-information according to the type and amount of modulation order. For example, the types of modulation order include: QPSK, 16QAM, 64QAM, 256QAM, 1024QAM. The seventh indication information can be divided into first to fifth sub-information.

[0071] 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 the multiplexing terminals and the terminals use the same modulation order and the modulation order is QPSK on all resource units allocated to the terminals or all resource units where multiplexing terminals exist, the second sub-information is 010, indicating 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 and the modulation order is 16QAM on all resource units allocated to the terminals or all resource units where multiplexing terminals exist, and the third sub-information is 011, indicating 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 and the modulation order is 16QAM on all resource units allocated to the terminals or all resource units where multiplexing terminals exist. The end adopts the same modulation order and the modulation order is 64QAM, the fourth sub-information is 100, indicating that the current downlink scheduling has the transmission of MU-MIMO multiplexed terminals, and in all resource units allocated to the terminal or in all resource units where the multiplexed terminals exist, the multiplexed terminal and the terminal adopt the same modulation order and the modulation order is 256QAM, the fifth sub-information is 101, indicating that the current downlink scheduling has the transmission of MU-MIMO multiplexed terminals, in all resource units allocated to the terminal or in all resource units where the multiplexed terminals exist, the multiplexed terminal and the terminal adopt the same modulation order and the modulation order is 1024QAM, the eighth indication information is 110, indicating that the current downlink scheduling has the transmission of MU-MIMO multiplexed terminals, and in any resource unit allocated to the terminal or in any resource unit where the multiplexed terminal exists, the multiplexed terminal and the terminal adopt the same modulation order.

[0072] The indication information may also be configured as 111 to indicate other situations, such as indicating that there is transmission of a multiplexed terminal of MU-MIMO in the current downlink scheduling, but the modulation order of the multiplexed terminal is different from that of the terminal, and is not limited to the examples given.

[0073] In some embodiments, the indication information is the sixth indication information, and is also used to indicate that the current downlink scheduling includes the transmission of a multiplexing terminal of MU-MIMO, 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 the current downlink scheduling includes the transmission of a multiplexing terminal of MU-MIMO, and the configuration of the multiplexing terminal meets the preset conditions.

[0074] By adopting the above embodiment, the base station can inform the target terminal through 3-bit indication information whether there is a transmission of a multiplexing terminal of MU-MIMO in the current downlink scheduling, or inform the target terminal whether the multiplexing terminal of the current downlink scheduling 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 of the current downlink scheduling 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 of the current downlink scheduling has the same modulation order as the target terminal on any allocated resource unit of the target terminal or any resource unit where the multiplexing terminal exists.

[0075] 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 terminals, the time domain resource allocation information of the multiplexed terminals, the frequency domain resource allocation information of the multiplexed terminals, and the DMRS port allocation information of the multiplexed terminals.

[0076] In some embodiments, the indication information is used to indicate the use of configuration information or a subset of configuration information.

[0077] The base station (or network) and the terminal pre-negotiate a series of configuration information, which can be fixed in the protocol or sent by the network through high-level information. During actual transmission, the base station can inform the current transmission through indication information to which configuration or subset of configurations the current transmission belongs.

[0078] Different configuration information can be formed into multiple configuration information groups, and the values ​​in each configuration information group are different, 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 DMRS port allocation information of the multiplexing terminal. The indication information is used to indicate the configuration information group used.

[0079] 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 configuration information group of the current multiplexed terminal by sending index information (e.g., sending 1 means: 1 terminal, QPSK, full bandwidth and full time slot transmission, DMRS port 0).

[0080] 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.

[0081] The base station may directly send the above configuration information to the terminal through indication information.

[0082] 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.

[0083] For example, the configuration information of DMRS includes: DMRS additional position (dmrs-AdditionalPosition), DMRS type (dmrs-Type), maximum length (maxLength). For example, the DMRS port allocation information includes a DMRS port index (PortIndex).

[0084] When there is information of multiple multiplexing terminals, the base station can distinguish different multiplexing terminals by additionally sending an identifier (for example, an index number).

[0085] In step S104, the terminal performs interference processing according to the indication information.

[0086] 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 through pre-negotiation, it can determine the time-frequency domain resources where the interference of the multiplexing terminal exists, so as to 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, which reduces the resource consumption of the terminal to perform additional detection on each time-frequency resource and then decide whether to perform interference processing.

[0087] In some embodiments, if the terminal obtains 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, thereby performing interference processing according to the number of multiplexing terminals that need to be interfered with.

[0088] In some embodiments, if the terminal obtains the DMRS configuration information of the multiplexing terminal, the DMRS sequence, or the DMRS sequence of the multiplexing terminal is the same as the configuration of the terminal through indication information or pre-negotiation, the channel estimation of the multiplexing terminal can be performed according to 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 try to perform channel estimation on the multiplexing terminal.

[0089] In some embodiments, if the terminal obtains the precoding bundling size (PRB bundling size) of the multiplexing terminal through indication information or through pre-negotiation, or the precoding bundling size of the multiplexing terminal is the same as the terminal configuration, then channel estimation can be performed according to the precoding bundling size of the multiplexing terminal as the granularity to obtain a greater channel estimation accuracy. Otherwise, the terminal can only perform channel estimation on a per PRB basis, which reduces the channel estimation accuracy.

[0090] 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 through prior negotiation, and the position information of the CSI-RS / PT-RS / TRS of the multiplexing terminal is the same as the configuration of the terminal, 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.

[0091] In some embodiments, if the terminal obtains the modulation and coding strategy information of the multiplexed terminal through indication information or through prior 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 detection accuracy.

[0092] In some embodiments, if the terminal obtains the control channel time domain resource configuration information of the multiplexed terminal through indication information or through prior negotiation, etc., it can determine the time domain resources that may be occupied by the data channel (for example, a total of 14 symbols, namely data channel + control channel + blank symbols) based on the information, thereby performing interference processing on the time domain resources occupied by the data channel.

[0093] In some embodiments, if the terminal obtains the data layer number information of the multiplexed terminal through indication information or pre-negotiation, it can determine several multiplexed terminals to perform channel estimation and then perform interference suppression.

[0094] In some embodiments, if the terminal obtains the modulation order of the multiplexed terminal through indication information or through pre-negotiation, etc. When the terminal supports interference elimination 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 the 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 logarithmic likelihood ratio (LLR) of the transmission bit is calculated according to the R-ML formula given below.

[0095]

[0096] y represents the received symbol vector; H represents the channel matrix of the multiplexing terminal and the target terminal (this terminal); s represents the detection 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 symbol set of bit 1; L is the log-likelihood ratio (LLR) of the bit.

[0097] When the terminal supports interference cancellation between MU-MIMO terminals based on an E-MMSE-IRC (enhanced minimum mean square error interference suppression combining) receiver, the terminal performs interference suppression according to the following formula.

[0098]

[0099] represents the joint channel matrix of the multiplexing terminal and the target terminal (this terminal); R N Identifies the white noise covariance matrix, and y represents the received symbol vector.

[0100] In the method of the above embodiment, the terminal receives indication information sent by the base station, and the indication information is used to indicate whether there is transmission of a multiplexing terminal of MU-MIMO 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 through 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 timely according to the indication information, thereby improving the accuracy of downlink reception. And in the absence of multiplexing terminals, the resource consumption of the terminal is also reduced.

[0101] The method of the above embodiment also proposes a method of pre-configuring the multiplexing terminal, and the network side indicates the terminal through limited bits, which greatly reduces the load of the PDCCH (physical downlink control channel) while ensuring that the terminal performs interference processing. The sending of indication information also helps to avoid the terminal from futilely performing channel estimation of the multiplexing terminal in non-MU-MIMO scenarios, thereby reducing the resource consumption of the terminal.

[0102] Figure 2 Flowcharts of other embodiments of the interference processing method disclosed in the present invention. Figure 2 As shown, the method of this embodiment includes: steps S202 to S208.

[0103] 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.

[0104] 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.

[0105] In some embodiments, the capability information includes: information indicating whether the terminal supports interference processing between MU-MIMO terminals.

[0106] 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.

[0107] In step S206, when the capability information includes information indicating that the terminal supports interference processing between MU-MIMO terminals, the base station sends indication information to the terminal, and correspondingly, the terminal receives the indication information sent by the base station.

[0108] The indication information can distinguish whether the terminal supports an E-MMSE-IRC receiver or an R-ML receiver and send them separately, or send the same information. 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, all resource units allocated to the terminal or all resource units existing in the multiplexed terminal, the multiplexed terminal and the terminal use the same modulation order. Refer to the aforementioned embodiment and it will not be repeated here.

[0109] In step S208, the terminal performs interference processing according to the indication information.

[0110] The terminal uses an E-MMSE-IRC receiver or an R-ML receiver to suppress or eliminate interference.

[0111] The present disclosure also provides a terminal, Figure 3 Give a description.

[0112] Figure 3 FIG. 1 is a structural diagram of some embodiments of the terminal disclosed in the present invention. Figure 3 As shown, the terminal 30 of this embodiment includes: a receiving module 310 and an interference processing module 320 .

[0113] 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 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.

[0114] The interference processing module 320 is used to perform interference processing according to the indication information.

[0115] In some embodiments, the terminal 30 further includes a sending module 330 for sending 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 elimination between MU-MIMO terminals based on a low complexity maximum likelihood R-ML receiver.

[0116] 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.

[0117] 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.

[0118] The specific content and form of the indication information can be referred to the aforementioned embodiment and will not be described in detail here.

[0119] The present disclosure also provides a base station, Figure 4 Give a description.

[0120] Figure 4 FIG. 1 is a structural diagram of some embodiments of the base station disclosed in the present invention. Figure 4 As shown, the base station 40 of this embodiment includes: a sending module 410.

[0121] The sending module 410 is used to send indication information to the terminal, 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; so that the terminal performs interference processing according to the indication information.

[0122] In some embodiments, the base station 40 further includes a receiving module 420 for receiving capability information sent by the terminal, wherein the capability information includes: information indicating whether the terminal supports interference processing between MU-MIMO terminals. The sending module 410 is used to send indication information to the terminal when the capability information includes information indicating that the terminal supports interference processing between MU-MIMO terminals.

[0123] In some embodiments, the sending module 410 is further configured to send capability query information to the terminal.

[0124] The specific content and form of the indication information can be referred to the aforementioned embodiment and will not be described in detail here.

[0125] The electronic devices (terminals or base stations) in the embodiments of the present disclosure can be implemented by various computing devices or computer systems. Figure 5 as well as Figure 5 Give a description.

[0126] Figure 5 FIG. 1 is a structural diagram of some embodiments of the electronic device disclosed in the present invention. Figure 5As shown, the electronic device 50 of this embodiment includes: a memory 510 and a processor 520 coupled to the memory 510 , and the processor 520 is configured to execute the interference processing method in any of some embodiments of the present disclosure based on instructions stored in the memory 510 .

[0127] 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.

[0128] Figure 6 FIG. 1 is a structural diagram of some other embodiments of the electronic device disclosed in the present invention. Figure 6 As shown, 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 can also include an input and output interface 630, a network interface 640, a storage interface 650, etc. These interfaces 630, 640, 650 and the memory 610 and the processor 620 can be connected, for example, through a bus 660. Among them, the input and output interface 630 provides a connection interface for input and 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, for example, it can be connected to 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.

[0129] The present disclosure also provides an interference processing system. Figure 7 Give a description.

[0130] Figure 7 FIG. 1 is a structural diagram of some embodiments of the interference processing system disclosed in the present invention. Figure 7 As shown, the system 7 of this embodiment includes: the terminal 30 of any of the above embodiments and the base station 40. One base station 40 may correspond to multiple terminals 30, and each terminal 30 may serve as a target terminal.

[0131] Those skilled in the art will appreciate that the 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. Moreover, 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 disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0132] 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 generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0133] These computer program instructions may also be stored in a computer-readable memory capable of directing 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 an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0134] 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, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0135] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope 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 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 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.

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, 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 claim 1, 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 claim 1, further comprising: Pre-negotiate configuration information with the base station, the configuration information including: 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; The indication information is used to indicate the use of the configuration information or a subset of the configuration information.

14. The interference handling method according to claim 1, 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 8 and 12 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 MACCE.

16. The interference processing method according to any one of claims 1 to 8, 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, 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 claim 16, 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 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.

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, configured to receive 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; 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.

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