CN118283596A

CN118283596A - Interference processing method, device and medium in multi-user multi-input multi-output scene

Info

Publication number: CN118283596A
Application number: CN202311014023.3A
Authority: CN
Inventors: 吴径舟; 杨姗; 汪博文; 佘小明
Original assignee: China Telecom Technology Innovation Center; China Telecom Corp Ltd
Current assignee: China Telecom Technology Innovation Center; China Telecom Corp Ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2024-07-02

Abstract

The disclosure relates to the technical field of communication, and provides an interference processing method in a multi-user multiple-input multiple-output scene, an interference processing device in the multi-user multiple-input multiple-output scene, a computer storage medium and electronic equipment, wherein the interference processing method in the multi-user multiple-input multiple-output scene comprises the following steps: in response to receiving a capability query message sent by a base station, a target terminal reports interference processing capability of the target terminal for a multi-user multiple-input multiple-output scene to the base station; and receiving auxiliary information sent by the base station, and performing interference processing based on the auxiliary information. The method in the disclosure can improve the reliability of the terminal for receiving the downlink data in the MU-MIMO scene.

Description

Interference processing method, device and medium in multi-user multi-input multi-output scene

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to an interference processing method in a multi-user multiple-input multiple-output scene, an interference processing device in a multi-user multiple-input multiple-output scene, a computer storage medium, and an electronic device.

Background

The 5G NR (New Radio, new Radio/New air interface, refer to a wireless network of 5G) base station commonly adopts massive MIMO (Multiple-Input Multiple-Output) at 3.5GHz and higher frequency bands, and Multiple-user MIMO (MU-MIMO, multi-UserMultiple-Input Multiple-Output) can simultaneously transmit downlink data to Multiple users at the same frequency, so that network throughput and single user rate experience can be improved, and the method is a widely adopted transmission mode in NR.

However, in the MU-MIMO scenario, the users are easily interfered by the multiplexing users when receiving the downlink data, and therefore, how to eliminate or reduce the inter-user interference phenomenon in the MU-MIMO scenario is a focus of attention of related technicians.

In view of this, there is a need in the art to develop a new method and apparatus for processing interference in a multi-user mimo scenario.

It should be noted that the information disclosed in the foregoing background section is only for enhancing understanding of the background of the present disclosure.

Disclosure of Invention

The disclosure aims to provide an interference processing method in a multi-user multiple-input multiple-output scene, an interference processing device in the multi-user multiple-input multiple-output scene, a computer storage medium and an electronic device, so as to overcome the technical problem of inter-user interference phenomenon caused by the limitation of related technologies at least to a certain extent.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

According to a first aspect of the present disclosure, there is provided a method for processing interference in a multi-user multiple input multiple output scenario, including: in response to receiving a capability query message sent by a base station, a target terminal reports interference processing capability of the target terminal for a multi-user multiple-input multiple-output scene to the base station; and receiving auxiliary information sent by the base station, and performing interference processing based on the auxiliary information.

In an exemplary embodiment of the present disclosure, the interference processing capability of the target terminal for the multi-user mimo scenario includes any one or a combination of the following capabilities: an interference processing algorithm supported by the target terminal; the target terminal supports interference processing based on network auxiliary signaling; the target terminal supports interference processing without network auxiliary signaling; the target terminal supports interference processing when the network configuration does not accord with the default network configuration; the number of data layers of the space division multiplexing terminal of the target terminal is less than or equal to X; the number of the space division multiplexing terminals of the target terminal is less than or equal to Y; x, Y are integers greater than or equal to 1; and configuring a demodulation reference signal (DMRS) supported by the target terminal.

In an exemplary embodiment of the present disclosure, the interference processing algorithm includes any one or more of the following algorithms: a minimum mean square error interference suppression combining algorithm; an enhanced minimum mean square error interference suppression combining algorithm; low complexity maximum likelihood algorithm.

In an exemplary embodiment of the present disclosure, the network assistance signaling includes any one or more of the following information: the modulation order of the space division multiplexing terminal of the target terminal; configuration information of a demodulation reference signal (DMRS) of a space division multiplexing terminal of the target terminal; the channel state information of the space division multiplexing terminal of the target terminal refers to the configuration information of a CSI-RS; configuration information of a precoding resource block group PRG of a space division multiplexing terminal of the target terminal; time domain resource scheduling information of the space division multiplexing terminal of the target terminal; and the frequency domain resource scheduling information of the space division multiplexing terminal of the target terminal.

In an exemplary embodiment of the present disclosure, the number of data layers of the space division multiplexing terminal of the target terminal is less than or equal to X, including: the data layer number of the space division multiplexing terminal of the target terminal is smaller than or equal to X under any one of the following resource granularity; the resource granularity includes: each physical resource block PRB, each set of pre-coded resource blocks PRG and the entire bandwidth of the target terminal.

In an exemplary embodiment of the present disclosure, the number of space division multiplexing terminals of the target terminal is less than or equal to Y, including: the number of the space division multiplexing terminals of the target terminal is less than or equal to Y under any one of the following resource granularities: the resource granularity includes: each physical resource block PRB, each set of pre-coded resource blocks PRG and the entire bandwidth of the target terminal.

In an exemplary embodiment of the present disclosure, the demodulation reference signal DMRS configuration supported by the target terminal includes any one or more of the following: configuration type of demodulation reference signal DMRS; additional positions of demodulation reference signal DMRS; the maximum OFDM symbol length of the demodulation reference signal DMRS.

In an exemplary embodiment of the present disclosure, the auxiliary information sent by the base station includes indication information sent by the base station through radio resource control RRC and/or medium access control MAC control element CE signaling; the indication information is used for indicating whether the current network configuration of the target terminal accords with a default network configuration or not, or the indication information is used for indicating that at least one current network configuration of the target terminal does not accord with the default network configuration.

In an exemplary embodiment of the present disclosure, the default network configuration includes any one or more of the following default configurations: the target terminal and the space division multiplexing terminal have the same demodulation reference signal (DMRS) configuration; the target terminal and the space division multiplexing terminal thereof are configured with the same modulation coding strategy Table MCS Table; the target terminal and the space division multiplexing terminal thereof are configured with the same pre-coding resource block group PRG; the target terminal and the space division multiplexing terminal thereof are configured with the same PRB binding size PRB bundling size; on each pre-coding resource block group PRG of the target terminal, the resource allocation of the target terminal and the space division multiplexing terminal is the same; the target terminal and the space division multiplexing terminal have the same signal power ratio; the signal power ratio refers to the ratio between the power of each resource element RE of the physical downlink shared channel PDSCH and the power of each resource element RE of the demodulation reference signal DMRS; the target terminal and the space division multiplexing terminal have the same downlink reference signal position; the target terminal and the space division multiplexing terminal thereof are configured with the same downlink control channel time domain resource; the target terminal and the downlink data channel PDSCH of the space division multiplexing terminal adopt full-time-slot transmission; the number of data layers of the space division multiplexing terminal of the target terminal is less than or equal to X; the number of the space division multiplexing terminals of the target terminal is less than or equal to Y; on each physical resource block PRB or each precoding resource block group PRG of the target terminal, the target terminal and the space division multiplexing terminal of the target terminal are scheduled with the same modulation order; the target terminal is scheduled with the same modulation order as the space division multiplexing terminal.

In an exemplary embodiment of the present disclosure, the downlink reference signal includes any one or more of the following: phase tracking reference signal PT-RS, channel state information reference signal CSI-RS, tracking reference signal TRS.

In an exemplary embodiment of the present disclosure, when the default network configuration includes a plurality of default configurations, and the indication information is used to indicate whether the current network configuration of the target terminal conforms to the default network configuration, the indication information includes any one of the following: the R-bit indication information is used for indicating whether the current network configuration of the target terminal accords with the default configuration; a plurality of R-bit indication information, where each R-bit indication information is used to indicate whether the current network configuration of the target terminal accords with each default configuration; r is an integer greater than or equal to 1.

In an exemplary embodiment of the present disclosure, when the default network configuration includes a plurality of default configurations, and the indication information is used to indicate that at least one current network configuration of the target terminal does not conform to the default network configuration, the indication information includes any one of the following: the R-bit indication information is used for indicating that at least one current network configuration of the target terminal does not accord with at least one default configuration corresponding to the current network configuration; a plurality of R-bit indication information, where each R-bit indication information is used to indicate that at least one current network configuration of the target terminal does not conform to at least one default configuration corresponding to the current network configuration; r is an integer greater than or equal to 1.

In an exemplary embodiment of the present disclosure, the auxiliary information transmitted by the base station includes multiplexing terminal information transmitted by the base station through radio resource control RRC and/or medium access control MAC control element CE signaling; the multiplexing terminal information comprises any one or more of the following information of a space division multiplexing terminal of the target terminal: configuration information of a demodulation reference signal (DMRS) of the space division multiplexing terminal and/or whether the space division multiplexing terminal of the target terminal exists currently or not; modulation and coding strategy table information of the space division multiplexing terminal; configuration information of the downlink reference signal of the space division multiplexing terminal; configuration information of control channel resources of the space division multiplexing terminal; scheduling information of the space division multiplexing terminal and allocation information of current time-frequency resources; and the allocation information of the demodulation reference signal (DMRS) port of the space division multiplexing terminal.

In an exemplary embodiment of the present disclosure, the auxiliary information sent by the base station includes multiplexing terminal information sent by the base station through downlink control information DCI signaling; the multiplexing terminal information comprises any one or more of the following information of a space division multiplexing terminal of the target terminal: the number of the space division multiplexing terminals of the target terminal and/or whether the space division multiplexing terminals of the target terminal exist currently or not; the modulation order of the space division multiplexing terminal; the number of data layers occupied by the space division multiplexing terminal; configuration information of the downlink reference signal of the space division multiplexing terminal; the allocation information of the current time-frequency resource of the space division multiplexing terminal; and the allocation information of the demodulation reference signal (DMRS) port of the space division multiplexing terminal.

According to a second aspect of the present disclosure, there is provided an interference processing method in a multi-user multiple input multiple output scenario, including: transmitting a capability query message to N terminals accessing to the base station; after receiving interference processing capacity aiming at a multi-user multi-input multi-output scene and reported by M target terminals in the N terminals, sending auxiliary information to K target terminals so that the K target terminals perform interference processing based on the auxiliary information; wherein N, M, K is an integer greater than or equal to 1, M is less than or equal to N, and K is less than or equal to M.

In an exemplary embodiment of the present disclosure, the sending auxiliary information to K target terminals includes: transmitting indication information to each of the K target terminals through Radio Resource Control (RRC) and/or Media Access Control (MAC) Control Element (CE) signaling; the indication information is used for indicating whether the current network configuration of each target terminal accords with the default network configuration or not, or the indication information is used for indicating that at least one current network configuration of each target terminal does not accord with the default network configuration.

In an exemplary embodiment of the present disclosure, when the default network configuration includes a plurality of default configurations, and the indication information is used to indicate whether the current network configuration of each target terminal conforms to the default network configuration, the indication information includes any one of the following: the R-bit indication information is used for indicating whether the current network configuration of each target terminal accords with the multiple default configurations or not; a plurality of R-bit indication information, where each R-bit indication information is used to indicate whether the current network configuration of each target terminal accords with each default configuration; r is an integer greater than or equal to 1.

In an exemplary embodiment of the present disclosure, when the default network configuration includes a plurality of default configurations, and the indication information is used to indicate that the current at least one network configuration of each target terminal does not conform to the default network configuration, the indication information includes any one of the following: the R-bit indication information is used for indicating that at least one current network configuration of each target terminal does not accord with at least one default configuration corresponding to the current network configuration; the method comprises the steps of indicating information of a plurality of R bits, wherein the indicating information of each R bit is used for indicating that at least one current network configuration of each target terminal does not accord with at least one default configuration corresponding to the current network configuration; r is an integer greater than or equal to 1.

In an exemplary embodiment of the present disclosure, the sending auxiliary information to K target terminals includes: and transmitting multiplexing terminal information to each of the K target terminals through Radio Resource Control (RRC) and/or Media Access Control (MAC) Control Element (CE) signaling.

In an exemplary embodiment of the present disclosure, the multiplexing terminal information includes any one or more of the following information of the space division multiplexing terminal of each target terminal: configuration information of a demodulation reference signal (DMRS) of the space division multiplexing terminal and/or whether the space division multiplexing terminal of each target terminal exists currently or not; modulation and coding strategy table information of the space division multiplexing terminal; configuration information of the downlink reference signal of the space division multiplexing terminal; configuration information of control channel resources of the space division multiplexing terminal; scheduling information of the space division multiplexing terminal and allocation information of current time-frequency resources; and the allocation information of the demodulation reference signal (DMRS) port of the space division multiplexing terminal.

In an exemplary embodiment of the present disclosure, the sending auxiliary information to K target terminals includes: and sending multiplexing terminal information to each target terminal in the K target terminals through downlink control information DCI signaling.

In an exemplary embodiment of the present disclosure, the multiplexing terminal information includes any one or more of the following information of the space division multiplexing terminal of each target terminal: the number of the space division multiplexing terminals of each target terminal and/or whether the space division multiplexing terminal of each target terminal exists currently or not; the modulation order of the space division multiplexing terminal; the number of data layers occupied by the space division multiplexing terminal; configuration information of the downlink reference signal of the space division multiplexing terminal; the allocation information of the current time-frequency resource of the space division multiplexing terminal; and the allocation information of the demodulation reference signal (DMRS) port of the space division multiplexing terminal.

According to a third aspect of the present disclosure, there is provided an interference processing apparatus in a multi-user multiple input multiple output scenario, comprising: the capacity reporting module is used for responding to the received capacity inquiry message sent by the base station, and the terminal reports the interference processing capacity of the terminal aiming at the multi-user multi-input multi-output scene to the base station; and the interference processing module is used for receiving the auxiliary information sent by the base station and carrying out interference processing based on the auxiliary information.

According to a fourth aspect of the present disclosure, there is provided an interference processing apparatus in a multi-user multiple input multiple output scenario, comprising: the capability query module is used for sending capability query messages to N terminals accessed to the base station; the information sending module is used for sending auxiliary information to K target terminals after receiving interference processing capacity aiming at a multi-user multi-input multi-output scene and reported by M target terminals in the N terminals, so that the K target terminals perform interference processing based on the auxiliary information; wherein N, M, K is an integer greater than or equal to 1, M is less than or equal to N, and K is less than or equal to M.

According to a fifth aspect of the present disclosure, there is provided a computer storage medium having stored thereon a computer program which, when executed by a processor, implements the method for processing interference in a multi-user multiple-input multiple-output scenario described in the first or second aspect above.

According to a sixth aspect of the present disclosure, there is provided an electronic device comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform the interference handling method in the multi-user multiple-input multiple-output scenario of the first or second aspect described above via execution of the executable instructions.

As can be seen from the above technical solutions, the interference processing method in the multi-user mimo scene, the interference processing device in the multi-user mimo scene, the computer storage medium, and the electronic apparatus in the exemplary embodiments of the present disclosure have at least the following advantages and positive effects:

In the technical schemes provided by some embodiments of the present disclosure, on one hand, the present disclosure may directly send auxiliary information to a target terminal (with interference processing capability for MU-MIMO scenarios) through a base station, so that the target terminal does not need to obtain the information by itself through multiple complex methods, and may quickly perform interference processing based on the auxiliary information, thereby saving energy consumption of the terminal and improving interference processing speed of the terminal. On the other hand, in view of the fact that the terminal can perform interference processing based on the auxiliary information, interference influence on downlink data reception in the MU-MIMO scene can be reduced, and reliability of downlink data reception is improved to a large extent.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 is a flow diagram of an interference processing method in a multi-user multiple-input multiple-output scenario in an embodiment of the present disclosure;

Fig. 2 illustrates a schematic structure of an interference processing apparatus in a multi-user multiple input multiple output scenario in an exemplary embodiment of the present disclosure;

fig. 3 illustrates a schematic structure of an interference processing apparatus in a multi-user multiple input multiple output scenario in an exemplary embodiment of the present disclosure;

fig. 4 shows a schematic structural diagram of an electronic device in an exemplary embodiment of the present disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present disclosure. One skilled in the relevant art will recognize, however, that the aspects of the disclosure may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the present disclosure.

The terms "a," "an," "the," and "said" are used in this specification to denote the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first" and "second" and the like are used merely as labels, and are not intended to limit the number of their objects.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.

MIMO is a critical wireless technology that can divide a transmission signal into multiple streams, and the streams are transmitted to multiple receiving ends in a decentralized manner. It can significantly improve the transmission distance, security level and throughput of wireless network signaling. MIMO has the following advantages:

1. The coverage is wide. MIMO can be applied to various communication modes, such as wireless broadband, wiFi, bluetooth, LTE (Long Term Evolution ), NR, etc., and can cover a very wide coverage area;

2. The power consumption is low. The MIMO is placed on a vertical smooth reflecting surface, and can forward the signal flow to almost any area, so that the transmission power is more effectively utilized, and the energy is saved;

3. the transmission distance increases. The wall penetrating effect of the MIMO system obviously improves the transmission distance, so that the MIMO system can more effectively break through the interference-resistant barrier;

4. the safety is enhanced. The MIMO system increases the space traversed by signals through multiplexing, and reduces external damage;

5. Network capacity increases. The MIMO can provide more channels and more beams to improve the capacity, and has a stable receiving effect;

6. The cost is reduced. The MIMO system can share signal sources by utilizing the characteristics of multiplexing thereof, thereby minimizing the cost and reducing the operation cost of operators.

The MIMO technology takes a brand new thought and a complete system as a break, is applied to various fields, greatly improves the transmission efficiency, and continuously promotes the progress of wireless technology.

MU-MIMO refers to that in a wireless communication system, one base station simultaneously and co-frequently serves a plurality of mobile terminals, and space domain resources of antennas are fully utilized between the base stations to communicate with a plurality of users simultaneously and co-frequently. MU-MIMO is a technology for improving spectrum utilization rate by utilizing multiple antennas of a transmitting end and a receiving end, and is also a key feasible technology in 5G.

MU-MIMO allows a base station to transmit data to multiple terminals concurrently, so that the data transmission efficiency in a wireless network is higher, and the waiting time of the terminals in time sequence is reduced, thereby better meeting the requirements of video, audio and other high-flow and low-delay applications.

The 5G NR base station generally adopts large-scale MIMO in 3.5GHz and higher frequency bands, and multi-user MIMO can simultaneously transmit downlink data to multiple users in the same frequency (downlink is the process of receiving data by a terminal) so as to improve network throughput and single-user rate experience, and is a transmission mode widely adopted in NR, however, under a downlink MU-MIMO scene, mutual interference exists among users.

In the related art, strong interference can be avoided by means of base station side user scheduling generally, however, because the base station scheduling needs to consider factors such as fairness, flow demand and actual position of users, the scheme still cannot avoid adverse effects on downlink receiving reliability. Or by introducing an interference handling receiver, strong interference in MU-MIMO scenarios is avoided, however, simulation experiments show that the terminal still suffers from interference under this scheme, resulting in an inability to achieve the expected throughput at the desired SNR (Signal to Noise Ratio ).

In an embodiment of the present disclosure, a method for processing interference in a multi-user MIMO scenario is provided, which overcomes the defect that the inter-user interference phenomenon in the MU-MIMO scenario cannot be avoided in the related art at least to some extent.

Fig. 1 is a flow chart illustrating an interference processing method in a multi-user mimo scenario in an embodiment of the present disclosure, where an execution body of the interference processing method in the multi-user mimo scenario may be any one target terminal of an access base station.

Referring to fig. 1, the interference processing method in a multi-user multiple input multiple output scenario according to one embodiment of the present disclosure includes the steps of:

step S110, in response to receiving a capability query message sent by a base station, a target terminal reports interference processing capability of the target terminal for a multi-user multiple-input multiple-output scene to the base station;

Step S120, receiving the auxiliary information sent by the base station, and performing interference processing based on the auxiliary information.

In the technical scheme provided by the embodiment shown in fig. 1, on one hand, the method and the device can directly send auxiliary information to the target terminal (with interference processing capability aiming at the MU-MIMO scene) through the base station, so that the target terminal can quickly perform inter-user interference processing based on the auxiliary information without acquiring the information by a plurality of complex methods, the energy consumption of the terminal is saved, and the interference processing speed of the terminal is improved. On the other hand, in view of the fact that the terminal can perform inter-user interference processing based on the auxiliary information, interference influence on downlink data reception in an MU-MIMO scene can be reduced, and reliability of downlink data reception is improved to a large extent.

The specific implementation of each step in fig. 1 is described in detail below:

It should be noted that, before step S110, the base station side may first send a capability query message (UE Capability Enquiry message) to N terminals accessing the base station, where the capability query message functions as: inquiring whether the N terminals have interference processing capability in the MU-MIMO scene.

Wherein, for any one of the N terminals, the remaining N-1 terminals may be referred to as space division multiplexing terminals of the terminal. Multiplexing is a method of combining several independent signals into one composite signal that can be transmitted simultaneously on the same channel. Such as: the frequency spectrum of the transmitted speech signal is typically within 300-3400HZ, and in order to enable several such signals to be transmitted on the same channel, their frequency spectra may be modulated into different frequency bands, combined together without affecting each other, and separated from each other at the receiving end. And space division multiplexing refers to that the same frequency band is reused in different spaces.

After the base station sends the capability query message to the N terminals accessing the base station, step S110 may be entered, and in response to receiving the capability query message sent by the base station, the terminal reports, to the base station, the interference processing capability of the terminal for the multi-user mimo scenario.

In this step, after each of the N terminals receives the capability query message sent by the base station, the M target terminals that have interference processing receivers deployed in the N terminals and support inter-user interference processing in the MU-MIMO scenario may report, to the base station, the interference processing capability of the M target terminals for the MU-MIMO scenario. Wherein the interference handling receiver is operative to receive signals from analog or digital Amplitude Modulation (AM), frequency Modulation (FM), or Digital Broadcast Signals (DBS) at radio frequencies and to convert the signals to audible, visible or digital information processing signals via components such as radio frequency amplifiers, mixers, intermediate frequency amplifiers and detectors, and in the process, the interference handling receiver suppresses all unwanted noise, including other signals, and does not add any noise or interference to the desired signals, and it is operative to convert, regardless of the form or format of the signals, to adapt to the characteristics required by the signal processor detection circuitry and then to the intelligent user interface.

Specifically, each of the M target terminals may report any one or a combination of multiple capabilities to the base station according to the actual situation of its own capability:

Capability 1: interference processing algorithm supported by the target terminal. The interference processing algorithm supported by the target terminal may include any one or more of the following algorithms, which may be reported according to actual situations, and this disclosure is not limited in particular.

Illustratively, the interference processing algorithm may be a minimum mean square error interference rejection combining algorithm (Minimum Mean Squared Error-INTERFERENCE REJECTION COMBINING, MMSE-IRC algorithm), an enhanced minimum mean square error interference rejection combining algorithm (Enhanced Minimum Mean Squared Error-INTERFERENCE REJECTION COMBINING, E-MMSE-IRC algorithm), a low complexity maximum likelihood algorithm (Reduced-MaximumLikelihood, R-ML algorithm), or the like.

Capability 2: the target terminal supports interference processing based on network auxiliary signaling, i.e. the target terminal can perform inter-user interference processing based on network auxiliary signaling. Wherein, the network auxiliary signaling may include any one or more of the following 6 pieces of information:

Information 1: modulation order of the space division multiplexing terminal of the target terminal. Modulation is the process of loading a low frequency signal to be transmitted onto a high frequency oscillating signal, the modulation order representing the number of bits transmitted in every 1 symbol, the magnitude of the modulation order directly affecting the reliability and transmission rate of the communication system.

Information 2: configuration information of DMRS (Demodulation reference signal) of a space division multiplexing terminal of a target terminal. DMRS, in 5G NR, is used for demodulation of PUSCH (Physical Uplink SHARED CHANNEL ), PUCCH (Physical Uplink Control Channel, physical Uplink control channel), and PDSCH (Physical Downlink SHARED CHANNEL ). DMRS or DM-RS is UE-specific (User Equipment) for estimating a radio channel. The base station may beamform the DMRS, keep it within the scheduled resources, and transmit it only when necessary to download or upload data. In addition, a plurality of orthogonal DMRSs may be allocated to support MIMO transmission. The network will provide DMRS information to the user as early as possible to meet the initial decoding requirements required for low latency applications, but it will also occasionally provide this information for low speed scenarios where the channel variation is not great. In a high mobility scenario where the tracking channel changes rapidly, the transmission rate of DMRS signals (referred to as "additional DMRS") may be increased.

For example, the configuration information of the DMRS may include any one or more of the following: ① The configuration Type (DMRS-Type) of the demodulation reference signal DMRS determines the RE mapping density of the DMRS in the frequency domain. Two configuration types are specified by 3GPP for PDSCH DMRS: type1 and type 2, for type1, DMRS REs are distributed at intervals in the frequency domain of a certain symbol, with a density of 50%; and for type 2, DMRS REs are connected together every two REs, spaced 4 REs apart from each other, and have a density of 33.3%. ② Additional positions (DMRS-AdditionalPosition) of the demodulation reference signal DMRS, the DMRS signals may be divided into a preamble DMRS (Front loaded DMRS) and a postamble DMRS, which is referred to herein as an additional DMRS, according to positions. The pre-DMRS is necessary, and the post-DMRS may not be configured. The post-DMRS is generally used in a medium-high speed moving scene, and the estimation precision of a time-varying channel is improved by inserting more DMRS pilot symbols in a scheduling time slot. At most 3 additional position slots can be configured in one time slot; ③ The maximum OFDM symbol length (maxLength) of the demodulation reference signal (DMRS), and the maximum symbol number occupied by the preamble DMRS. If the parameter is not configured in the RRC message, the default value len1, that is, the preamble DMRS occupies only 1 symbol. The value=len2 indicates that the preamble DMRS may occupy 2 symbols at most, some slots may occupy 1, and other slots may occupy 2. Actually occupies a few symbols and is dynamically determined by the "Antenna port(s)" field in DCI 1-1. Two symbols are designed primarily to support more antenna ports.

Information 3: the CSI-RS (CHANNEL STATE Information REFERENCE SIGNAL ) of the space division multiplexing terminal of the target terminal is a type of reference signal used for downlink channel state Information measurement in NR, so that the base station can consider the configuration Information of the channel quality during downlink scheduling. By way of example, the configuration information may include a resource mapping configuration, such as: power offset of CSI-RS relative to PDSCH or SS, scrambling code ID of CSI-RS relative to PDSCH or SS; the UE may further include information such as a period and offset configuration, and QCL (QCL may be used to support reception of PDSCH and PDCCH on the UE side) configuration, which may be set by itself according to practical situations, and this disclosure is not limited in particular.

Information 4: configuration information of a precoding resource block group PRG of a space division multiplexing terminal of a target terminal, the configuration information of the PRG being determined by a BWP (Bandwidth Part) start point and PRB bundling size configured at a base station side. In 5G NR, the system may configure PRB bundling size for the terminal (i.e., consecutive resource blocks P '_BWP.i),P′_BWP.i in the frequency domain may be equal to one of {2,4, wideband }, if P' _BWP.i is determined to be 'wideband', the UE does not want to schedule with discontinuous PRBs and the UE may assume that the same precoding is used for its allocated resources if P '_BWP.i is determined to be one of 2 or 4, PRGs divides the bandwidth of the i-th part into consecutive PRBs with P' _BWP.i, the number of consecutive PRBs in each PRG may be one or more, the size of the first PRG is represented by the formulaDetermining ifThe last PRG is Otherwise, P' _BWP.i is used. The UE may assume that it is allocated the same precoding for any downlink consecutive PRBs in each PRG.

Information 5: time domain resource scheduling information of a space division multiplexing terminal of a target terminal. The time domain resources may include a sampling period, a frame structure, a basic parameter set (for example, a subcarrier interval, a symbol length, a CP length) and a CP, an OFDM symbol number of an OFDM (Orthogonal Frequency Division Multiplexing ) system, and the like, which may be set according to the actual situation, and the disclosure is not limited in particular.

Information 6: frequency domain resource scheduling information of a space division multiplexing terminal of a target terminal. The frequency domain resources may include RE (Resource Element, resource with minimum granularity of physical layer, frequency domain 1 subcarrier, time domain 1 OFDM symbol), RB (Resource Block, frequency domain basic scheduling unit allocated by data channel Resource, 12 subcarriers in the frequency domain, without defining the time domain), RG (Resource group, physical layer Resource group, number of RB resources N _RB available in the transmission bandwidth in the frequency domain, 1 subframe in the time domain), and the like, which may be set by themselves according to practical situations, and the disclosure does not limit the present disclosure in particular.

Capability 3: the target terminal supports interference handling without network-assisted signaling. I.e. the target terminal can still perform inter-user interference processing in case that the network auxiliary signaling is not included in the one or more auxiliary information transmitted by the base station.

Capability 4: the target terminal supports inter-user interference processing when the network configuration does not conform to the default network configuration, i.e., the target terminal can still perform inter-user interference processing even when the network configuration does not conform to the default network configuration.

It should be noted that, the default network configuration may include any one or more of the following 13 default configurations:

Default configuration 1: the target terminal and the space division multiplexing terminal thereof have the same demodulation reference signal (DMRS) configuration. The DMRS configuration of the demodulation reference signal may refer to the explanation related to the above information 2, which is not described herein, and in addition, may be a sequence scrambling identifier (scrambling ID) configured by the target terminal and its space division multiplexing terminal, or an n_scid configured by the target terminal and its space division multiplexing terminal, which may be set by itself according to the actual situation, which is not particularly limited in the present disclosure.

Default configuration 2: the target terminal and its space division multiplexing terminal configure the same MCS Table (Modulation and Coding Scheme Table, modulation coding strategy Table). The configuration of modulation coding in 5G NR is achieved by MCS (Modulation and Coding Scheme, modulation and coding strategy) index values. The MCS uses the factors affecting the communication rate concerned as columns of the table, and uses the MCS index as rows to form a rate table. Each MCS index corresponds to a physical transmission rate under a set of parameters.

Default configuration 3: the target terminal and its space division multiplexing terminal are configured with the same PRG (precoding resource block group, set of precoding resource blocks). The configuration information of the PRG is determined by a BWP (Bandwidth Part) start point and PRB bundling size configured at the base station side. In 5G NR, the system may configure PRB bundling size for the terminal (i.e., consecutive resource blocks P '_BWP.i),P′_BWP.i in the frequency domain may be equal to one of {2,4, wideband }, if P' _BWP.i is determined to be 'wideband', the UE does not want to schedule with discontinuous PRBs and the UE may assume that the same precoding is used for its allocated resources if P '_BWP.i is determined to be one of 2 or 4, PRGs divides the bandwidth of the i-th part into consecutive PRBs with P' _BWP.i, the number of consecutive PRBs in each PRG may be one or more, the size of the first PRG is represented by the formulaDetermining ifThe last PRG isOtherwise, P' _BWP.i is used. The UE may assume that it is allocated the same precoding for any downlink consecutive PRBs in each PRG.

Default configuration 4: the target terminal and its space division multiplexing terminal are configured with the same PRB bundling size ((physical resource block bundling size). Wherein 12 subcarriers in the frequency domain and 7 symbols in the time domain may constitute one physical resource block PRB, which is the smallest multi-user multiplexing unit for radio resources.

Default configuration 5: on each PRG (precoding resource block group, set of pre-coded resource blocks) of the target terminal, the target terminal is identical to its resource allocation of the space division multiplexed terminal. Illustratively, the resource may be a physical resource block PRB or a resource element RE.

Default configuration 6: the target terminal and its space division multiplexing terminal have the same configuration of signal power ratio (may also be referred to as DMRS energy enhancement), where the signal power ratio refers to the ratio between the power of each resource element RE of the physical downlink shared channel PDSCH and the power of each resource element RE of the demodulation reference signal DMRS, and it should be noted that, in the case that the number of DMRS code division multiplexing CDM groups of the target terminal and its space division multiplexing terminal is the same, the signal power ratio is necessarily the same.

Default configuration 7: the target terminal and the space division multiplexing terminal have the same downlink reference signal configuration, wherein the downlink reference signal comprises any one or more of the following: PT-RS (Phase-TRACKING REFERENCE SIGNALS, phase tracking reference signal used for Phase noise estimation), CSI-RS (CHANNEL STATE Information REFERENCE SIGNAL, channel state Information reference signal, which is a type of reference signal used for downlink channel state Information measurement in NR, which is convenient for a base station to take channel quality into consideration in downlink scheduling), tracking reference signal TRS (TRACKING REFERNECE SIGNAL, tracking reference signal).

Default configuration 8: the target terminal and its space division multiplexing terminal configure the same PDCCH (Physical Downlink Control Channel, downlink control channel, bearer scheduling and other control information) time domain resources, which may be, for example, control channel elements CCE (one PDCCH is composed of one or more CCEs, the number of CCEs contained in the PDCCH becomes aggregation degree), control resource set CORESET, and the like, which may be set by themselves according to practical situations, and this disclosure is not limited in particular.

Default configuration 9: and the downlink data channels PDSCH of the target terminal and the space division multiplexing terminal adopt full-time-slot transmission. The time slot (slot) refers to the minimum channel resource divided by time in the time slicing technology, and is a constituent unit of a frame. Full-slot transmission refers to all OFDM symbols of the slot, except for PDCCH, being allocated to the target terminal and its space division multiplexing terminals for PDSCH transmission.

Default configuration 10: and the number of data layers of the space division multiplexing terminal of the target terminal is less than or equal to X, and X is an integer greater than or equal to 1. The number of data layers refers to the number of data symbols sent or received by the same terminal on the same time-frequency resource, and is also called as the number of data streams or the number of space streams.

Default configuration 11: and the number of the space division multiplexing terminals of the target terminal is less than or equal to Y, and Y is an integer greater than or equal to 1.

Default configuration 12: on each physical resource block PRB or each PRG (precoding resource block group, set of precoded resource blocks) of the target terminal, the target terminal is scheduled with the same modulation order as its space division multiplexed terminal.

Default configuration 13: the target terminal is scheduled with the same modulation order as the space division multiplexing terminal.

Capacity 5: the number of data layers of the space division multiplexing terminal of the target terminal is less than or equal to X, and X is an integer greater than or equal to 1. This capability may include any of the following: under each physical resource block PRB, the number of data layers of the space division multiplexing terminal of the target terminal is less than or equal to X; under each pre-coding resource block group PRG, the number of data layers of the space division multiplexing terminal of the target terminal is less than or equal to X; the number of data layers of the space division multiplexing terminal of the target terminal is less than or equal to X at the entire bandwidth of the target terminal (bandwidth refers to the difference between upper and lower frequencies in one continuous frequency band, which is typically in hertz).

Capability 6: the number of space division multiplexing terminals of the target terminal is less than or equal to Y (Y is an integer greater than or equal to 1). This capability may include any of the following: the number of the space division multiplexing terminals of the target terminal is less than or equal to Y under each physical resource block PRB; or under each pre-coding resource block group PRG, the number of the space division multiplexing terminals of the target terminal is less than or equal to Y; or the number of space division multiplexing terminals of the target terminal is less than or equal to Y at the entire bandwidth of the target terminal (bandwidth refers to the difference between upper and lower frequencies in one continuous frequency band, which is typically in hertz).

Capability 7: and configuring a demodulation reference signal (DMRS) supported by the target terminal. As can be seen from the explanation related to the above steps, the demodulation reference signal DMRS configuration supported by the target terminal may include any one or more of the following: configuration type of demodulation reference signal DMRS; additional positions of demodulation reference signal DMRS; the maximum OFDM symbol length of the demodulation reference signal DMRS is not described here.

After the M target terminals report the interference processing capability for the MU-MIMO scenario to the base station, the base station may send auxiliary information to K target terminals among the M target terminals, so that each target terminal among the K target terminals may perform the following step S120, receive the auxiliary information sent by the base station, and perform interference processing based on the auxiliary information.

In this step, each of the K target terminals may receive the auxiliary information sent by the base station, and perform inter-user interference processing based on the auxiliary information.

In an alternative embodiment, the auxiliary information sent by the base station may include indication information sent by the base station through RRC (Radio Resource Control, radio resource control, which means that radio resource management, control, and scheduling are performed by a certain policy and means, and under the condition that the requirement of quality of service is met, limited radio network resources are fully utilized as far as possible, reaching a planned coverage area is ensured, and service capacity and resource utilization are improved as far as possible), and/or CE signaling is sent by the MAC control element. The indication information may be used to indicate whether the current network configuration of the target terminal accords with a default network configuration, or the indication information may be used to indicate that at least one current network configuration of the target terminal does not accord with the default network configuration, so that after receiving the multiplexing terminal information, the target terminal may perform inter-user interference processing based on the multiplexing terminal information.

As will be appreciated by reference to the relevant explanation above, the default network configuration herein may include any one or more of the following default configurations:

Default configuration 2: the target terminal and its space division multiplexing terminal configure the same MCS Table (Modulation and Coding Scheme Table, modulation coding strategy Table). The configuration of the rate in LTE is achieved by MCS (Modulation and Coding Scheme, modulation and coding strategy) index values. The MCS uses the factors affecting the communication rate concerned as columns of the table, and uses the MCS index as rows to form a rate table. Each MCS index corresponds to a physical transmission rate under a set of parameters.

Default configuration 9: and the downlink data channels PDSCH of the target terminal and the space division multiplexing terminal adopt full-time-slot transmission. The time slot (slot) refers to the minimum channel resource divided by time in the time slicing technology, and is a constituent unit of a frame. Full-slot transmission refers to all OFDM symbols of the slot, except for PDCCH, being allocated to the target terminal and its space division multiplexing terminal for PDSCH transmission.

When the default network configuration includes a plurality of default configurations and the indication information is used to indicate whether the current network configuration of the target terminal accords with the default network configuration, in an optional implementation manner, the indication information may be set as an R-BIT (BIT, a measurement unit of an information amount, which is a minimum unit of the information amount) indication information, where the R-BIT indication information is used to indicate whether the current network configuration of the target terminal accords with the plurality of default configurations. For example, assuming that the default network configuration includes 3 default configurations (for example, default configuration 1, default configuration 2, and default configuration 3), and R is 3 bits, when the indication information is "001", it may be determined that the current network configuration of the target terminal does not conform to the default configuration 1, does not conform to the default configuration 2, and conforms to the default configuration 3, and thus, only through 1 piece of indication information, it may be notified whether the current network configuration of the target terminal conforms to multiple default configurations. In another alternative embodiment, the indication information may be set to a plurality of R bits of indication information, for example, the default network configuration still includes 3 default configurations (for example, may be default configuration 1, default configuration 2 and default configuration 3), and R is illustrated by taking 1 bit as an example, then the base station may send 3 pieces of indication information to the target terminal, where each piece of indication information corresponds to one default configuration and has a length of 1 bit, so when the first piece of indication information is "0", it may be determined that the current network configuration of the target terminal does not conform to the default configuration 1, when the second piece of indication information is "0", it may be determined that the current network configuration of the target terminal does not conform to the default configuration 2, and when the third piece of indication information is "1", it may be determined that the current network configuration of the target terminal conforms to the default configuration 3.

When the default network configuration includes multiple default configurations and the indication information is used to indicate that the current at least one network configuration of the target terminal does not conform to the default network configuration, in an optional implementation manner, the indication information may be set to an indication information of R BITs (BIT, which is a minimum unit of information quantity), where the indication information of R BITs is used to indicate that the current at least one network configuration of the target terminal does not conform to at least one default configuration corresponding to the current at least one network configuration of the target terminal. For example, the default network configuration includes 3 default configurations (for example, default configuration 1, default configuration 2, and default configuration 3), and R is illustrated by taking 2 bits as an example, so that when the indication information is "12", it may be determined that the current network configuration of the target terminal does not conform to default configuration 1 and default configuration 2 in the default configurations, and the current network configuration of the target terminal conforms to default configuration 3 in the default configurations. In another optional embodiment, the indication information may be set to multiple R-bit indication information, where each R-bit indication information is used to indicate that at least one current network configuration of the target terminal does not conform to at least one default configuration corresponding to the current network configuration. For example, the default network configuration includes 3 default configurations (for example, default configuration 1, default configuration 2, and default configuration 3), and R is illustrated as 1 bit, so that the base station may send two pieces of indication information to the target terminal, where the first piece of indication information corresponds to default configuration 1 and default configuration 2, and the second piece of indication information corresponds to default configuration 3, and each piece of indication information is 1 bit, so that when the first piece of indication information is "0", and the second piece of indication information is not received, it may be determined that the current network configuration of the target terminal does not conform to at least one of default configuration 1 and default configuration 2, and the current network configuration of the target terminal conforms to default configuration 3.

In another optional implementation manner, the auxiliary information sent by the base station includes multiplexing terminal information sent by the base station through radio resource control RRC and/or medium access control MAC control element CE signaling, so that after receiving the multiplexing terminal information, the target terminal may perform inter-user interference processing based on the multiplexing terminal information.

The multiplexing terminal information may include any one or more of the following information of the space division multiplexing terminal of each target terminal: ① Configuration information of a demodulation reference signal (DMRS) of the space division multiplexing terminal and/or whether the space division multiplexing terminal of the target terminal exists currently or not; ② Modulation and coding strategy table information of the space division multiplexing terminal; ③ As can be seen from the above explanation, the configuration information of the downlink reference signal of the space division multiplexing terminal includes any one or more of the following: PT-RS (Phase-TRACKING REFERENCE SIGNALS, phase tracking reference signal, used for Phase noise estimation), CSI-RS (CHANNEL STATE Information REFERENCE SIGNAL, channel state Information reference signal, which is a type of reference signal used for downlink channel state Information measurement in NR, which is convenient for a base station to take channel quality into consideration in downlink scheduling), tracking reference signal TRS (TRACKING REFERNECE SIGNAL, tracking reference signal); ④ The configuration information of the control channel resource of the space division multiplexing terminal may be, for example, a starting ODFM symbol of the control channel and/or an ODFM symbol length of the control channel; ⑤ Scheduling information of the space division multiplexing terminal and allocation information of current time-frequency resources, for example: the method comprises the steps of number of space division multiplexing terminals, time domain resource allocation information of one or more space division multiplexing terminals and frequency domain resource allocation information of one or more space division multiplexing terminals; ⑥ The allocation information of the DMRS port of the demodulation reference signal of the space division multiplexing terminal may be, for example: DMRS port number allocated through the antanna port field in DCI.

In yet another alternative embodiment, the auxiliary information sent by the base station further includes multiplexing terminal information sent by the base station through DCI (Downlink Control Information, downlink control information, for carrying downlink control information of one or more cells with one RNTI, which also provides information such as physical layer resource allocation, power control command, uplink and downlink HARQ for the UE, and the DCI is transmitted through PDCCH at CRC with 24 bits). Thus, the target terminal, after receiving the multiplexed terminal information, can perform inter-user interference processing based on the multiplexed terminal information.

The multiplexing terminal information may include any one or more of the following information of a space division multiplexing terminal of the target terminal: ① The number of the space division multiplexing terminals of the target terminal and/or whether the space division multiplexing terminals of the target terminal exist currently or not; ② The modulation order of the space division multiplexing terminal; ③ The number of data layers occupied by the space division multiplexing terminal; ④ And the configuration information of the downlink reference signal of the space division multiplexing terminal. ⑤ The allocation information of the current time-frequency resource of the space division multiplexing terminal, for example: the method comprises the steps of number of space division multiplexing terminals, time domain resource allocation information of one or more space division multiplexing terminals and frequency domain resource allocation information of one or more space division multiplexing terminals; ⑥ The allocation information of the DMRS port of the demodulation reference signal of the space division multiplexing terminal may be, for example, a DMRS port number allocated through an antenna port field in DCI.

Based on the above technical scheme, on the one hand, the method and the device can directly send the auxiliary information to the target terminal (with the interference processing capability aiming at the MU-MIMO scene) through the base station, so that the target terminal can quickly perform inter-user interference processing based on the auxiliary information without acquiring the information by a plurality of complex methods, the energy consumption of the terminal is saved, and the interference processing speed of the terminal is improved. On the other hand, in view of the fact that the terminal can perform inter-user interference processing based on the auxiliary information, interference influence on downlink data reception in an MU-MIMO scene can be reduced, and reliability of downlink data reception is improved to a large extent.

The present disclosure also provides an interference processing device in a multi-user multiple-input multiple-output scenario, and fig. 2 shows a schematic structural diagram of the interference processing device in the multi-user multiple-input multiple-output scenario in an exemplary embodiment of the present disclosure; as shown in fig. 2, the interference processing apparatus 200 in the multi-user multiple-input multiple-output scenario may include a capability reporting module 210 and an interference processing module 220. Wherein:

The capability reporting module 210 is configured to report, to a base station, an interference processing capability of the terminal for a multi-user multiple-input multiple-output scene in response to receiving a capability query message sent by the base station;

and the interference processing module 220 is configured to receive the auxiliary information sent by the base station, and perform interference processing based on the auxiliary information.

The specific details of each module in the interference processing device in the above-mentioned multi-user mimo scenario are already described in detail in the interference processing method in the corresponding multi-user mimo scenario, so that the details are not repeated here.

The present disclosure also provides an interference processing device in a multi-user multiple-input multiple-output scenario, and fig. 3 shows a schematic structural diagram of the interference processing device in the multi-user multiple-input multiple-output scenario in an exemplary embodiment of the present disclosure; as shown in fig. 3, the interference processing apparatus 300 in the multi-user multiple input multiple output scenario may include a capability query module 310 and an information transmission module 320. Wherein:

A capability query module 310, configured to send a capability query message to N terminals accessing the base station;

The information sending module 320 is configured to send auxiliary information to K target terminals after receiving interference processing capabilities for a multi-user multiple input multiple output scenario reported by M target terminals in the N terminals, so that the K target terminals perform interference processing based on the auxiliary information; wherein N, M, K is an integer greater than or equal to 1, M is less than or equal to N, and K is less than or equal to M.

In an exemplary embodiment of the present disclosure, the capability query module 310 sends auxiliary information to K target terminals, including: transmitting indication information to each of the K target terminals through Radio Resource Control (RRC) and/or Media Access Control (MAC) Control Element (CE) signaling; the indication information is used for indicating whether the current network configuration of each target terminal accords with the default network configuration or not, or the indication information is used for indicating that at least one current network configuration of each target terminal does not accord with the default network configuration.

In an exemplary embodiment of the present disclosure, the information sending module 320 sends auxiliary information to K target terminals, including: and transmitting multiplexing terminal information to each of the K target terminals through Radio Resource Control (RRC) and/or Media Access Control (MAC) Control Element (CE) signaling.

In an exemplary embodiment of the present disclosure, the information sending module 320 sends auxiliary information to K target terminals, including: and sending multiplexing terminal information to each target terminal in the K target terminals through downlink control information DCI signaling.

It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order, or that all illustrated steps be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

The present application also provides a computer-readable storage medium that may be included in the electronic device described in the above embodiments; or may exist alone without being incorporated into the electronic device.

The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this disclosure, a computer-readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

A computer readable storage medium may transmit, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.

The computer-readable storage medium carries one or more programs which, when executed by one such electronic device, cause the electronic device to implement the methods described in the embodiments above.

In addition, an electronic device capable of realizing the method is provided in the embodiment of the disclosure.

Those skilled in the art will appreciate that the various aspects of the present disclosure may be implemented as a system, method, or program product. Accordingly, various aspects of the disclosure may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.

An electronic device 400 according to such an embodiment of the present disclosure is described below with reference to fig. 4. The electronic device 400 shown in fig. 4 is merely an example and should not be construed to limit the functionality and scope of use of embodiments of the present disclosure in any way.

As shown in fig. 4, the electronic device 400 is embodied in the form of a general purpose computing device. The components of electronic device 400 may include, but are not limited to: the at least one processing unit 410, the at least one memory unit 420, a bus 430 connecting the different system components (including the memory unit 420 and the processing unit 410), and a display unit 440.

Wherein the storage unit stores program code that is executable by the processing unit 410 such that the processing unit 410 performs steps according to various exemplary embodiments of the present disclosure described in the above-described "exemplary methods" section of the present specification. For example, the processing unit 410 may perform the operations as shown in fig. 1: step S110, in response to receiving a capability query message sent by a base station, a target terminal reports interference processing capability of the target terminal for a multi-user multiple-input multiple-output scene to the base station; step S120, receiving the auxiliary information sent by the base station, and performing interference processing based on the auxiliary information.

The storage unit 420 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 4201 and/or cache memory 4202, and may further include Read Only Memory (ROM) 4203.

The storage unit 420 may also include a program/utility 4204 having a set (at least one) of program modules 4205, such program modules 4205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.

Bus 430 may be a local bus representing one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or using any of a variety of bus architectures.

The electronic device 400 may also communicate with one or more external devices 500 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 400, and/or any device (e.g., router, modem, etc.) that enables the electronic device 400 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 450. Also, electronic device 400 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 460. As shown, the network adapter 460 communicates with other modules of the electronic device 400 over the bus 430. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 400, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A method for processing interference in a multi-user multiple-input multiple-output scene, comprising:

In response to receiving a capability query message sent by a base station, a target terminal reports interference processing capability of the target terminal for a multi-user multiple-input multiple-output scene to the base station;

and receiving auxiliary information sent by the base station, and performing interference processing based on the auxiliary information.

2. The method according to claim 1, wherein the interference handling capability of the target terminal for a multi-user multiple-input multiple-output scenario comprises any one or a combination of the following capabilities:

an interference processing algorithm supported by the target terminal;

the target terminal supports interference processing based on network auxiliary signaling;

The target terminal supports interference processing without network auxiliary signaling;

the target terminal supports interference processing when the network configuration does not accord with the default network configuration;

the number of data layers of the space division multiplexing terminal of the target terminal is less than or equal to X;

the number of the space division multiplexing terminals of the target terminal is less than or equal to Y; x, Y are integers greater than or equal to 1;

And configuring a demodulation reference signal (DMRS) supported by the target terminal.

3. The method of claim 2, wherein the interference processing algorithm comprises any one or more of the following:

a minimum mean square error interference suppression combining algorithm;

an enhanced minimum mean square error interference suppression combining algorithm;

Low complexity maximum likelihood algorithm.

4. The method according to claim 2, wherein the network-assisted signaling includes any one or more of the following information:

The modulation order of the space division multiplexing terminal of the target terminal;

configuration information of a demodulation reference signal (DMRS) of a space division multiplexing terminal of the target terminal;

The channel state information of the space division multiplexing terminal of the target terminal refers to the configuration information of a CSI-RS;

Configuration information of a precoding resource block group PRG of a space division multiplexing terminal of the target terminal;

Time domain resource scheduling information of the space division multiplexing terminal of the target terminal;

and the frequency domain resource scheduling information of the space division multiplexing terminal of the target terminal.

5. The method according to claim 2, wherein the number of data layers of the space division multiplexing terminal of the target terminal is less than or equal to X, comprising:

the data layer number of the space division multiplexing terminal of the target terminal is smaller than or equal to X under any one of the following resource granularity;

The resource granularity includes: each physical resource block PRB, each set of pre-coded resource blocks PRG and the entire bandwidth of the target terminal.

6. The method of claim 2, wherein the number of space division multiplexed terminals of the target terminal is less than or equal to Y, comprising:

The number of the space division multiplexing terminals of the target terminal is less than or equal to Y under any one of the following resource granularities:

7. The method according to claim 2, characterized in that the demodulation reference signal DMRS configuration supported by the target terminal comprises any one or more of the following:

Configuration type of demodulation reference signal DMRS;

additional positions of demodulation reference signal DMRS;

the maximum OFDM symbol length of the demodulation reference signal DMRS.

8. The method according to claim 1, wherein the auxiliary information sent by the base station comprises indication information sent by the base station through radio resource control RRC and/or medium access control MAC control element CE signalling;

the indication information is used for indicating whether the current network configuration of the target terminal accords with a default network configuration or not, or the indication information is used for indicating that at least one current network configuration of the target terminal does not accord with the default network configuration.

9. The method of claim 2 or 8, wherein the default network configuration comprises any one or more of the following default configurations:

the target terminal and the space division multiplexing terminal have the same demodulation reference signal (DMRS) configuration;

The target terminal and the space division multiplexing terminal thereof are configured with the same modulation coding strategy Table MCS Table;

the target terminal and the space division multiplexing terminal thereof are configured with the same pre-coding resource block group PRG;

The target terminal and the space division multiplexing terminal thereof are configured with the same PRB binding size PRB bundling size;

on each pre-coding resource block group PRG of the target terminal, the resource allocation of the target terminal and the space division multiplexing terminal is the same;

the target terminal and the space division multiplexing terminal have the same signal power ratio; the signal power ratio refers to the ratio between the power of each resource element RE of the physical downlink shared channel PDSCH and the power of each resource element RE of the demodulation reference signal DMRS;

the target terminal and the space division multiplexing terminal have the same downlink reference signal position;

The target terminal and the space division multiplexing terminal thereof are configured with the same downlink control channel time domain resource;

the target terminal and the downlink data channel PDSCH of the space division multiplexing terminal adopt full-time-slot transmission;

the number of the space division multiplexing terminals of the target terminal is less than or equal to Y;

On each physical resource block PRB or each precoding resource block group PRG of the target terminal, the target terminal and the space division multiplexing terminal of the target terminal are scheduled with the same modulation order;

the target terminal is scheduled with the same modulation order as the space division multiplexing terminal.

10. The method of claim 9, wherein the downlink reference signal comprises any one or more of:

phase tracking reference signal PT-RS, channel state information reference signal CSI-RS, tracking reference signal TRS.

11. The method of claim 8, wherein when the default network configuration comprises a plurality of default configurations and the indication information indicates whether the current network configuration of the target terminal meets the default network configuration,

The indication information comprises any one of the following:

The R-bit indication information is used for indicating whether the current network configuration of the target terminal accords with the default configuration;

A plurality of R-bit indication information, where each R-bit indication information is used to indicate whether the current network configuration of the target terminal accords with each default configuration;

R is an integer greater than or equal to 1.

12. The method of claim 8, wherein when the default network configuration comprises a plurality of default configurations and the indication information is used to indicate that the current at least one network configuration of the target terminal does not conform to the default network configuration,

The indication information comprises any one of the following:

The R-bit indication information is used for indicating that at least one current network configuration of the target terminal does not accord with at least one default configuration corresponding to the current network configuration;

A plurality of R-bit indication information, where each R-bit indication information is used to indicate that at least one current network configuration of the target terminal does not conform to at least one default configuration corresponding to the current network configuration;

R is an integer greater than or equal to 1.

13. The method according to claim 1, wherein the auxiliary information sent by the base station comprises multiplexed terminal information sent by the base station through radio resource control RRC and/or medium access control MAC control element CE signalling;

The multiplexing terminal information comprises any one or more of the following information of a space division multiplexing terminal of the target terminal:

Configuration information of a demodulation reference signal (DMRS) of the space division multiplexing terminal and/or whether the space division multiplexing terminal of the target terminal exists currently or not;

modulation and coding strategy table information of the space division multiplexing terminal;

configuration information of the downlink reference signal of the space division multiplexing terminal;

configuration information of control channel resources of the space division multiplexing terminal;

scheduling information of the space division multiplexing terminal and allocation information of current time-frequency resources;

And the allocation information of the demodulation reference signal (DMRS) port of the space division multiplexing terminal.

14. The method according to claim 1, wherein the auxiliary information sent by the base station includes multiplexing terminal information sent by the base station through downlink control information DCI signaling;

the number of the space division multiplexing terminals of the target terminal and/or whether the space division multiplexing terminals of the target terminal exist currently or not;

The modulation order of the space division multiplexing terminal;

the number of data layers occupied by the space division multiplexing terminal;

the allocation information of the current time-frequency resource of the space division multiplexing terminal;

15. A method for processing interference in a multi-user multiple-input multiple-output scene, comprising:

transmitting a capability query message to N terminals accessing to the base station;

after receiving interference processing capacity aiming at a multi-user multi-input multi-output scene and reported by M target terminals in the N terminals, sending auxiliary information to K target terminals so that the K target terminals perform interference processing based on the auxiliary information;

Wherein N, M, K is an integer greater than or equal to 1, M is less than or equal to N, and K is less than or equal to M.

16. The method of claim 15, wherein the sending auxiliary information to K target terminals comprises:

Transmitting indication information to each of the K target terminals through Radio Resource Control (RRC) and/or Media Access Control (MAC) Control Element (CE) signaling;

The indication information is used for indicating whether the current network configuration of each target terminal accords with the default network configuration or not, or the indication information is used for indicating that at least one current network configuration of each target terminal does not accord with the default network configuration.

17. The method of claim 16, wherein when the default network configuration comprises a plurality of default configurations and the indication information indicates whether the current network configuration of each target terminal meets the default network configuration,

The indication information comprises any one of the following:

The R-bit indication information is used for indicating whether the current network configuration of each target terminal accords with the multiple default configurations or not;

a plurality of R-bit indication information, where each R-bit indication information is used to indicate whether the current network configuration of each target terminal accords with each default configuration;

R is an integer greater than or equal to 1.

18. The method of claim 16, wherein when the default network configuration comprises a plurality of default configurations and the indication information indicates that the current at least one network configuration of each target terminal does not conform to the default network configuration,

The indication information comprises any one of the following:

The R-bit indication information is used for indicating that at least one current network configuration of each target terminal does not accord with at least one default configuration corresponding to the current network configuration;

the method comprises the steps of indicating information of a plurality of R bits, wherein the indicating information of each R bit is used for indicating that at least one current network configuration of each target terminal does not accord with at least one default configuration corresponding to the current network configuration;

R is an integer greater than or equal to 1.

19. The method of claim 15, wherein the sending auxiliary information to K target terminals comprises:

and transmitting multiplexing terminal information to each of the K target terminals through Radio Resource Control (RRC) and/or Media Access Control (MAC) Control Element (CE) signaling.

20. The method of claim 19, wherein the multiplexed terminal information comprises any one or more of the following information for the space division multiplexed terminal of each target terminal:

Configuration information of a demodulation reference signal (DMRS) of the space division multiplexing terminal and/or whether the space division multiplexing terminal of each target terminal exists currently or not;

21. The method of claim 15, wherein the sending auxiliary information to K target terminals comprises:

And sending multiplexing terminal information to each target terminal in the K target terminals through downlink control information DCI signaling.

22. The method of claim 21, wherein the multiplexed terminal information comprises any one or more of the following information for the space division multiplexed terminal of each target terminal:

the number of the space division multiplexing terminals of each target terminal and/or whether the space division multiplexing terminal of each target terminal exists currently or not;

The modulation order of the space division multiplexing terminal;

the number of data layers occupied by the space division multiplexing terminal;

23. An interference handling apparatus in a multi-user multiple-input multiple-output scenario, comprising:

The capacity reporting module is used for responding to the received capacity inquiry message sent by the base station, and the terminal reports the interference processing capacity of the terminal aiming at the multi-user multi-input multi-output scene to the base station;

and the interference processing module is used for receiving the auxiliary information sent by the base station and carrying out interference processing based on the auxiliary information.

24. An interference handling apparatus in a multi-user multiple-input multiple-output scenario, comprising:

The capability query module is used for sending capability query messages to N terminals accessed to the base station;

The information sending module is used for sending auxiliary information to K target terminals after receiving interference processing capacity aiming at a multi-user multi-input multi-output scene and reported by M target terminals in the N terminals, so that the K target terminals perform interference processing based on the auxiliary information;

25. A computer storage medium having stored thereon a computer program, which when executed by a processor implements the method of interference handling in a multi-user multiple input multiple output scenario according to any one of claims 1 to 22.

26. An electronic device, comprising:

A processor; and

A memory for storing executable instructions of the processor;

Wherein the processor is configured to perform the interference handling method in the multi-user multiple-input multiple-output scenario of any one of claims 1 to 22 via execution of the executable instructions.