Method for handling inter-user interference in MU-MIMO scenarios and related devices

Abstract

This disclosure provides a method and related devices for handling terminal-to-user interference in a MU-MIMO scenario, relating to the field of communications technology. The method includes receiving support capability information for MU-MIMO terminal-to-user interference handling, reported by a terminal, and a network-side device transmitting auxiliary information to the terminal to assist the terminal in performing MU-MIMO terminal-to-user interference handling when receiving downlink data. Based on the terminal's support capability information, this disclosure can assist the terminal in performing terminal-to-user interference handling in a MU-MIMO scenario, thereby significantly reducing performance losses caused by terminal-to-user interference in a MU-MIMO scenario.

Description

Technical Field

[0001] (Cross - reference to related applications) This disclosure claims the priority of Chinese Patent Application No. 202310431587.0, titled "Method for Processing Inter - user Interference and Related Devices in MU - MIMO Scenario", filed on April 20, 2023, and the entire content thereof is incorporated herein by reference.

[0002] This disclosure relates to the field of communication technology, and particularly to a method for processing inter - user interference and related devices in a MU - MIMO scenario.

Background Art

[0003] 5G NR base stations generally deploy massive MIMO in the 3.5 GHz and higher frequency bands. Since MU - MIMO has advantages such as improving the throughput of the entire network and supporting multiple - user transmissions at the same frequency simultaneously, it is a widely adopted transmission method in 5G NR. However, in the MU - MIMO scenario, interference exists between terminal users. Before Rel - 16, mainly network - side devices (such as base stations) scheduled the channel information of each user to avoid such interference. However, since the scheduling of network - side devices needs to balance fairness, traffic demand, and the actual user positions, in actual transmissions, such interference still has a significant impact on the reliability of downlink reception. In 5G NR Rel - 17, an MMSE - IRC receiver was introduced to reduce the interference between multiplexed user terminals. According to simulation results, when the network - side device uses orthogonal precoding and random precoding, compared with the conventional MMSE reception, the E - MMSE - IRC / R - ML receiver is expected to utilize more network - side information and higher complexity to obtain better reception - end reliability, which has been incorporated into the consideration items for enhancing demodulation performance in 3GPP Rel - 18.

[0004] Therefore, providing a method to help address user-to-user interference in MU-MIMO scenarios based on terminal support capability information is an urgent technical challenge.

[0005] Please note that the information disclosed in the background technology section above is intended solely to enhance understanding of the background of this disclosure and therefore may contain information that does not constitute prior art known to those skilled in the art. [Overview of the project]

[0006] This disclosure provides a method and related devices for handling inter-user interference in MU-MIMO scenarios, thereby overcoming, at least to some extent, the technical challenges of prior art that prevent the handling of inter-user interference in MU-MIMO scenarios based on terminal support capability information.

[0007] Other features and benefits of this disclosure may become apparent from the following detailed description or may be partially understood through the implementation of this disclosure.

[0008] According to one aspect of the present disclosure, a method for handling inter-user interference in a MU-MIMO scenario applied to a network-side device is provided, the method comprising: receiving support capability information for MU-MIMO inter-user interference handling reported by a terminal; and transmitting auxiliary information to the terminal, the auxiliary information being used to assist the terminal in performing MU-MIMO inter-user interference handling when receiving downlink data.

[0009] In some embodiments, the support capability information reported by the terminal includes whether the terminal supports advanced receiving capabilities for MU-MIMO inter-user interference suppression and / or elimination.

[0010] In some embodiments, the advanced reception function includes at least one of MU-MIMO inter-user interference suppression based on a first reception algorithm and MU-MIMO inter-user interference rejection based on a second reception algorithm.

[0011] In some embodiments, the support capability information reported by the terminal further includes whether the terminal supports an advanced receiving function based on blind detection, and the step of sending auxiliary information to the terminal includes the step of sending auxiliary information to the terminal if the terminal does not support an advanced receiving function based on blind detection.

[0012] In some embodiments, if the terminal supports an advanced receive function for MU-MIMO inter-user interference suppression and / or elimination, the further step includes instructing the terminal to turn on or off the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination.

[0013] In some embodiments, the step of instructing the terminal to turn on or off an advanced receive function for MU-MIMO inter-user interference suppression and / or elimination includes either the step of instructing the terminal to turn on or off an advanced receive function for MU-MIMO inter-user interference suppression and / or elimination via upper-layer semistatic signaling, or the step of instructing the terminal to turn on or off an advanced receive function for MU-MIMO inter-user interference suppression and / or elimination via a physical layer downlink control channel (PDCCH).

[0014] In some embodiments, the step of instructing the terminal to turn on or off an advanced receive function for MU-MIMO inter-user interference suppression and / or elimination via upper-layer semistatic signaling includes at least one of the following: instructing the terminal to turn on or off an advanced receive function for MU-MIMO inter-user interference suppression and / or elimination via function switching signaling; and implicitly instructing the terminal to turn on or off an advanced receive function for MU-MIMO inter-user interference suppression and / or elimination via auxiliary information.

[0015] In some embodiments, the method further includes the step of transmitting auxiliary information to the terminal via upper-layer semi-static signaling and / or physical-layer downlink control channels (PDCCH) if the terminal supports advanced receive functions for MU-MIMO inter-user interference suppression and / or elimination.

[0016] In some embodiments, the step of transmitting auxiliary information to the terminal via upper-layer semistatic signaling and / or physical layer downlink control channel (PDCCH) includes the step of transmitting auxiliary information to the terminal via upper-layer semistatic signaling if the terminal supports MU-MIMO inter-user interference suppression based on a first receiving algorithm, and the step of transmitting auxiliary information to the terminal via upper-layer semistatic signaling and / or physical layer downlink control channel (PDCCH) if the terminal supports MU-MIMO inter-user interference rejection based on a second receiving algorithm.

[0017] In some embodiments, the upper-layer semistatic signaling is a radio resource control (RRC) signaling, and the auxiliary information transmitted to the terminal via the radio resource control (RRC) signaling includes at least one of the following: DMRS configuration information for the co-scheduled user terminal; modulation and coding scheme table information for the co-scheduled user terminal; reference signal configuration information for the co-scheduled user terminal; time-domain resource allocation information for the control channel of the co-scheduled user terminal; and scheduling resource configuration information for the co-scheduled user terminal.

[0018] In some embodiments, the DMRS configuration information of the co-scheduled user terminal includes at least one of the DMRS sequence scramble initial value configured on the co-scheduled user terminal by the network-side device, and whether the network-side device configured a different DMRS sequence scramble initial value on the co-scheduled user terminal.

[0019] In some embodiments, the modulation and coding scheme table information of the co-scheduled user terminal includes at least one of the following: a modulation and coding scheme table configured on the co-scheduled user terminal by the network-side device, and whether the co-scheduled user terminal and the user terminal have different modulation and coding scheme tables configured on them.

[0020] In some embodiments, the reference signal configuration information for the co-scheduled user terminal includes at least one of the following: configuration information for at least one of the following reference signals configured for the co-scheduled user terminal by the network-side device: a phase tracking reference signal (PT-RS), a channel state information reference signal (CSI-RS), and a time-frequency tracking reference signal (TRS); and whether different reference signal configuration information is configured for the co-scheduled user terminal and for this user terminal.

[0021] In some embodiments, the time domain resource allocation information for the control channel of the co-scheduled user terminal includes at least one of the time domain start symbol and / or continuation symbol length of the control channel of the co-scheduled user terminal, and whether different time domain resource allocation information is configured for the co-scheduled user terminal and this user terminal.

[0022] In some embodiments, the scheduling resource configuration information for the co-scheduled user terminal includes at least one of the following: the number of users to be multiplexed in each downlink data scheduling; the number of user streams to be multiplexed in each downlink data scheduling; and whether both the co-scheduled user terminal and the user terminal are in full-slot transmission.

[0023] In some embodiments, the auxiliary information transmitted to the terminal via the physical layer downlink control channel (PDCCH) includes at least one of the following: signal modulation configuration information for the co-scheduled user terminal; time-frequency resource configuration information for the co-scheduled user terminal; reference signal configuration information for the co-scheduled user terminal; time-domain resource allocation information for the control channel of the co-scheduled user terminal; and scheduling resource configuration information for the co-scheduled user terminal.

[0024] In some embodiments, the signal modulation configuration information of the co-scheduled user terminal includes at least one of the following: a modulation and coding scheme table used by the co-scheduled user terminal; whether different modulation and coding scheme tables are configured for the co-scheduled user terminal and the user terminal; and the signal modulation order of the co-scheduled user terminal, wherein the signal modulation order includes one of BPSK, QPSK, 16QAM, 64QAM, 256QAM, and 1024QAM.

[0025] In some embodiments, the time-frequency resource configuration information of the coordinated scheduled user terminal includes at least one of the index information of a physical resource block (PRB) and the time-domain symbol index information.

[0026] In some embodiments, the reference signal configuration information of the coordinated scheduled user terminal includes at least one of the configuration information of at least one of the phase tracking reference signal (PT-RS), the channel state information reference signal (CSI-RS), and the time-frequency tracking reference signal (TRS) configured by the network-side device for the coordinated scheduled user terminal, and whether the reference signal configuration information different from that of the coordinated scheduled user terminal and this user terminal is configured.

[0027] In some embodiments, the time-domain resource allocation information of the control channel of the coordinated scheduled user terminal includes at least one of the time-domain start symbol and / or the continuous symbol length of the control channel of the coordinated scheduled user terminal, and whether the time-domain resource allocation information different from that of the coordinated scheduled user terminal and this user terminal is configured.

[0028] In some embodiments, the scheduling resource configuration information of the coordinated scheduled user terminal includes at least one of the number of multiplexed users, the number of multiplexed user streams, and whether both the coordinated scheduled user terminal and this user terminal are full-slot transmissions.

[0029] In some embodiments, the first receiving algorithm is the R-ML algorithm, and the second receiving algorithm is the R-ML algorithm or the E-MMSE-IRC algorithm.

[0030] In some embodiments, before the step of receiving, by the terminal, support capability information for MU-MIMO inter-user interference suppression reported by the terminal, the method further includes the step of transmitting a capability inquiry request to the terminal, and the capability inquiry request is used to request the terminal to report support capability information for MU-MIMO inter-user interference processing.

[0031] According to another aspect of the present disclosure, a method for processing inter-user interference in a MU-MIMO scenario applied to a terminal is provided, and the method includes the step of reporting support capability information for MU-MIMO inter-user interference suppression to a network-side device, and the step of receiving auxiliary information transmitted by the network-side device, where the auxiliary information is used to assist the terminal in performing MU-MIMO inter-user interference processing when receiving downlink data.

[0032] According to another aspect of the present disclosure, a network-side device is provided, including a terminal interference suppression capability information acquisition module configured to receive support capability information for MU-MIMO inter-user interference suppression reported by a terminal, and an auxiliary information distribution module configured to transmit auxiliary information to the terminal, where the auxiliary information is used to assist the terminal in performing MU-MIMO inter-user interference processing when receiving downlink data.

[0033] According to another aspect of the present disclosure, a terminal is provided, including an interference processing capability information reporting module configured to report support capability information for MU-MIMO inter-user interference suppression to a network-side device, and an auxiliary information receiving module configured to receive auxiliary information transmitted by the network-side device, where the auxiliary information is used to assist the terminal in performing MU-MIMO inter-user interference processing when receiving downlink data.

[0034] According to another aspect of the present disclosure, an electronic device is provided comprising a processor and a memory for storing executable instructions of the processor, wherein the processor is configured to execute the executable instructions to perform a method for handling user-to-user interference in any of the above-described MU-MIMO scenarios.

[0035] According to another aspect of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, a method for handling user-to-user interference in the MU-MIMO scenario described in any one of the preceding paragraphs is realized.

[0036] According to another aspect of this disclosure, a computer program product is provided which includes a computer program, and when the computer program is executed by a processor, a method for handling user-to-user interference in the MU-MIMO scenario described in any one of the preceding paragraphs is realized.

[0037] The methods for handling inter-user interference in a MU-MIMO scenario, network-side devices, terminals, electronic devices, computer-readable storage media, and computer program products provided by embodiments of this disclosure enable the network-side device to receive support capability information for MU-MIMO inter-user interference processing reported by a terminal, and the network-side device to transmit auxiliary information to the terminal to assist the terminal in performing MU-MIMO inter-user interference processing when receiving downlink data. This allows the terminal to perform terminal-to-user interference processing in a MU-MIMO scenario based on the terminal's support capability information, thereby significantly reducing performance loss caused by inter-user interference in a MU-MIMO scenario.

[0038] Please understand that the general descriptions above and the detailed descriptions below are for illustrative purposes only and do not limit this disclosure. [Brief explanation of the drawing]

[0039] The accompanying drawings are incorporated herein and constitute part thereof. These drawings illustrate embodiments consistent with the disclosure and, together with the description herein, are useful in illustrating the principles of the disclosure. Clearly, the drawings described below are only a few embodiments of the disclosure. Those skilled in the art can obtain other drawings based on these without any creative work.

[0040] [Figure 1] This is a schematic diagram of a communication system architecture according to an embodiment of the present disclosure.

[0041] [Figure 2] This is a flowchart of the method for handling user-to-user interference in a MU-MIMO scenario according to an embodiment of the present disclosure.

[0042] [Figure 3] This is a flowchart illustrating an example of the embodiments of the present disclosure in which a network-side device instructs a terminal to turn on or off an advanced receive function for MU-MIMO inter-user interference suppression and / or elimination.

[0043] [Figure 4] This is a flowchart showing how a network-side device transmits auxiliary information according to an embodiment of the present disclosure.

[0044] [Figure 5] This is a flowchart of another method for handling user-to-user interference in a MU-MIMO scenario, according to an embodiment of the present disclosure.

[0045] [Figure 6] This is a flowchart illustrating an example of the present disclosure in which a terminal receives an instruction from a network-side device to turn on or off an advanced receiving function for suppressing and / or eliminating MU-MIMO inter-user interference.

[0046] [Figure 7] This is a flowchart showing how a terminal according to an embodiment of the present disclosure receives auxiliary information.

[0047] [Figure 8] This is a schematic diagram of a network-side device according to an embodiment of the present disclosure.

[0048] [Figure 9] This is a schematic diagram of a terminal according to an embodiment of the present disclosure.

[0049] [Figure 10] This is a structural block diagram of an electronic device according to an embodiment of the present disclosure.

[0050] [Figure 11] This is a schematic diagram of a computer-readable storage medium according to an embodiment of the present disclosure. [Modes for carrying out the invention]

[0051] Exemplary embodiments will be described in more detail with reference to the accompanying drawings. However, exemplary embodiments can be implemented in various forms and should not be construed as being limited to the examples described herein. Rather, these embodiments are provided so as to ensure that this disclosure is thorough and complete and to fully convey the concepts of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics can be combined in any suitable way in one or more embodiments.

[0052] Furthermore, the drawings are only schematic representations of the present disclosure and are not necessarily drawn to actual scale. The same reference numerals in the drawings indicate the same or similar parts, and redundant explanations are omitted. Some of the blocks shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities may be implemented in software, one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0053] To facilitate understanding, before introducing the embodiments of this disclosure, some terms used in the embodiments of this disclosure will be explained below.

[0054] MIMO: Multiple Input Multiple Output.

[0055] MU-MIMO: Multi-User Multiple-Input Multiple-Output.

[0056] E-MMSE-IRC: Enhanced Linear Minimum Mean Square Error-Interference Rejection Combining.

[0057] R-ML: Reduced Complexity Maximum Likelihood.

[0058] PT-RS: Phase-Tracking Reference Signals.

[0059] CSI-RS: Channel-State-Information Reference Signal.

[0060] TRS: Tracking Reference Signal.

[0061] BPSK: Binary Phase Shift Keying.

[0062] QPSK: Quadrature Phase Shift Keying.

[0063] QAM: Quadrature Amplitude Modulation.

[0064] DMRS: Demodulation Reference Signal.

[0065] PDCCH: Physical Downlink Control Channel.

[0066] RRC: Radio Resource Control.

[0067] Hereinafter, specific embodiments of the embodiments of this disclosure will be described in detail with reference to the attached drawings.

[0068] Figure 1 shows a schematic diagram of an exemplary application system architecture to which the method for handling inter-user interference in a MU-MIMO scenario according to the embodiments of this disclosure can be applied.

[0069] As shown in Figure 1, the system architecture includes a terminal 10, a network 30, and a network-side device 20. The network-side device 20 can assist the terminal in handling MU-MIMO inter-user interference when receiving downlink data. The network 30 provides a medium for the communication link between the terminal 10 and the network-side device 20 and may be either a wired or wireless network.

[0070] Optionally, the terminal in the embodiments of this disclosure may also be called User Equipment (UE). In specific implementations, the terminal may be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), mobile internet device (MID), wearable device, or in-vehicle device. The embodiments of this disclosure are not limited to specific types of terminals.

[0071] The network-side device may be a base station, a repeater, or an access point. The base station may be a 5G or later base station (e.g., a 5G NR NB), or a base station of another communication system (e.g., an eNB base station). The specific types of network-side devices are not limited in the embodiments of this disclosure.

[0072] Those skilled in the art will understand that the number of terminals, networks, and network-side devices in Figure 1 are merely illustrative. Any number of terminals, networks, and network-side devices can be used as needed; this is not limited to the embodiments of this disclosure.

[0073] In the system architecture described above, embodiments of the present invention provide a method for handling user-to-user interference in a MU-MIMO scenario. In principle, this method can be performed by any electronic device with computing capabilities. In some embodiments, the method for handling user-to-user interference in a MU-MIMO scenario provided by embodiments of the present disclosure can be performed by a network-side device in the system architecture described above. In some other embodiments, the method for handling user-to-user interference in a MU-MIMO scenario provided by embodiments of the present disclosure can be implemented through interaction between a network-side device and a terminal in the system architecture described above.

[0074] Figure 2 shows a flowchart of how to handle user-to-user interference in a MU-MIMO scenario according to an embodiment of the present disclosure. As shown in Figure 2, the method for handling user-to-user interference in a MU-MIMO scenario provided by an embodiment of the present disclosure includes the following steps:

[0075] In S202, support capability information for MU-MIMO inter-user interference handling, reported from the terminal, is received.

[0076] In a specific implementation, a terminal can proactively report its support capability for MU-MIMO inter-user interference handling to the network-side device. Alternatively, after receiving a capability query request from the network-side device requesting terminal capability information, the terminal can report its support capability for MU-MIMO inter-user interference handling to the network-side device.

[0077] In some embodiments, before receiving support capability information for MU-MIMO inter-user interference suppression reported from the terminal, the method for handling inter-user interference in a MU-MIMO scenario provided in embodiments of the present disclosure may further include the step of sending a capability query request to the terminal, where the capability query request is used to request the terminal to report support capability information for MU-MIMO inter-user interference handling.

[0078] In S204, auxiliary information is sent to the terminal, which is used to help the terminal perform MU-MIMO inter-user interference processing when receiving downlink data.

[0079] In the embodiments of this disclosure, auxiliary information refers to information transmitted by a network-side device to a terminal, which helps the terminal perform MU-MIMO inter-user interference processing (interference suppression and / or elimination) when receiving downlink data.

[0080] In some embodiments, the support capability information reported by the terminal received in S202 includes, but is not limited to, whether the terminal supports advanced receiving functions for MU-MIMO inter-user interference suppression and / or elimination.

[0081] The terminal may or may not support advanced receive functionality for MU-MIMO inter-user interference processing. In the above embodiment, the network-side device can transmit corresponding auxiliary information based on the terminal's ability to support MU-MIMO inter-user interference processing by reporting whether the terminal supports advanced receive functionality for MU-MIMO inter-user interference suppression and / or elimination.

[0082] Terminals supporting advanced receive functionality for MU-MIMO inter-user interference handling may also support different receive algorithms, some of which can perform MU-MIMO inter-user interference suppression, and others that can perform MU-MIMO inter-user interference rejection. When terminals employ different receive algorithms, network-side devices need to send different auxiliary information to the terminals. Therefore, in some embodiments, the advanced receive functionality reported by the terminal may include, but is not limited to, at least one of (1) MU-MIMO inter-user interference suppression based on a first receive algorithm, and (2) MU-MIMO inter-user interference rejection based on a second receive algorithm.

[0083] It should be noted that if a terminal supports advanced reception based on blind detection, the terminal can perform the corresponding MU-MIMO inter-user interference suppression or elimination without sending auxiliary information to the terminal. Therefore, in one embodiment of this disclosure, capability information reported by the terminal may include, but is not limited to, information on whether the terminal supports advanced reception based on blind detection. In a specific implementation, if the terminal does not support advanced reception based on blind detection, the network-side device can send auxiliary information to the terminal. This embodiment reduces the terminal's energy consumption by sending auxiliary information to the terminal only when the terminal does not support advanced reception based on blind detection.

[0084] In some embodiments, after receiving support capability information for MU-MIMO inter-user interference handling reported from a terminal, the method for handling inter-user interference in a MU-MIMO scenario provided in the embodiments of this disclosure, as shown in Figure 3, may further include the following steps:

[0085] In S302, if the terminal supports the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination, the terminal is instructed to turn the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination on or off.

[0086] As shown in Figure 3, in some embodiments, the terminal can be instructed to turn on or off the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination via one of the following methods, but is not limited to these.

[0087] In S302a, the terminal is instructed to turn on or off the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination via upper-layer semi-static signaling.

[0088] In S302b, the terminal is instructed via the Physical Layer Downlink Control Channel (PDCCH) to turn on or off the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination.

[0089] When instructing a terminal to turn on or off advanced receive functions for MU-MIMO inter-user interference suppression and / or elimination via upper-layer semistatic signaling, some embodiments may use, but are not limited to, at least one of the following methods:

[0090] (1) The terminal is instructed to turn on or off the advanced receive function for suppressing and / or eliminating MU-MIMO inter-user interference via function switching signaling.

[0091] (2) The terminal is implicitly instructed via auxiliary information to turn on or off the advanced receive function for suppressing and / or eliminating MU-MIMO inter-user interference.

[0092] In some embodiments, after receiving support capability information for MU-MIMO inter-user interference handling reported from a terminal, the method for handling inter-user interference in a MU-MIMO scenario provided in the embodiments of this disclosure, as shown in Figure 4, may further include the following steps:

[0093] In S402, if the terminal supports advanced receive functions for MU-MIMO inter-user interference suppression and / or elimination, auxiliary information is transmitted to the terminal via upper-layer semi-static signaling and / or physical layer downlink control channel (PDCCH).

[0094] In some embodiments, if the advanced receiving function supported by the terminal includes a MU-MIMO inter-user interference suppression function based on a first receiving algorithm and / or a MU-MIMO inter-user interference rejection function based on a second receiving algorithm, S402 can be implemented in the following ways, but is not limited thereto.

[0095] In S402a, if the terminal supports MU-MIMO inter-user interference suppression based on the first receiving algorithm, auxiliary information is transmitted to the terminal via upper-layer semistatic signaling.

[0096] In S402b, if the terminal supports MU-MIMO inter-user interference rejection based on a second receiving algorithm, auxiliary information is transmitted to the terminal via upper-layer semi-static signaling and / or physical layer downlink control channel (PDCCH).

[0097] The first receiving algorithm is any receiving algorithm capable of suppressing MU-MIMO inter-user interference, and the second receiving algorithm is any receiving algorithm capable of eliminating MU-MIMO inter-user interference. In some embodiments, the first receiving algorithm is the R-ML algorithm, and the second receiving algorithm is either the R-ML algorithm or the E-MMSE-IRC algorithm.

[0098] In some embodiments, when the upper-layer semistatic signaling is radio resource control (RRC) signaling, the auxiliary information transmitted to the terminal via the radio resource control (RRC) signaling includes: 1) DMRS configuration information of co-scheduled user terminals, 2) Modulation and encoding scheme table information of cooperatively scheduled user terminals, 3) Reference signal configuration information of user terminals that have been coordinately scheduled, 4) Time domain resource allocation information for the control channel of a user terminal that has been coordinately scheduled, 5) The scheduling resource configuration information of the user terminals that have been coordinately scheduled, and at least one of the following:

[0099] Furthermore, in some embodiments, the DMRS configuration information of the cooperatively scheduled user terminals is 1) The initial DMRS sequence scramble value configured on the user terminal coordinately scheduled by the network-side device, 2) Whether the network-side device configured different DMRS sequence scrambling initial values ​​for the co-scheduled user terminals, and at least one of the above may be included.

[0100] Furthermore, in some embodiments, the modulation and coding scheme table information of the cooperatively scheduled user terminals is 1) A modulation and coding scheme table configured on a user terminal coordinately scheduled by a network-side device, 2) Whether different modulation and encoding scheme tables are configured for the co-scheduled user terminal and this user terminal, and at least one of these may be included.

[0101] Furthermore, in some embodiments, the reference signal configuration information of the cooperatively scheduled user terminal is 1) Configuration information of at least one of the following reference signals configured for a user terminal coordinately scheduled by a network-side device: a phase tracking reference signal (PT-RS), a channel status information reference signal (CSI-RS), and a time-frequency tracking reference signal (TRS). 2) Whether different reference signal configuration information is configured for the user terminal that is being coordinately scheduled and for this user terminal, and at least one of these may be included.

[0102] Furthermore, in some embodiments, the time-domain resource allocation information for the control channel of the cooperatively scheduled user terminal is 1) The time domain start symbol and / or continuation symbol length of the control channel of a user terminal that has been coordinately scheduled, 2) Whether different time domain resource allocation information is configured for the user terminal that is being coordinately scheduled, or at least one of the above.

[0103] Furthermore, in some embodiments, the scheduling resource configuration information of the cooperatively scheduled user terminal is 1) The number of users to be duplicated in each downlink data scheduling, 2) The number of user streams that are multiplexed in each downlink data scheduling, 3) Whether both the co-scheduled user terminal and this user terminal are in full-slot transmission mode, and at least one of the above.

[0104] In some embodiments, auxiliary information transmitted to the terminal via the physical layer downlink control channel (PDCCH) is: 1) Signal modulation configuration information of user terminals that have been coordinately scheduled, 2) Time-frequency resource configuration information of user terminals that have been coordinately scheduled, 3) Reference signal configuration information of user terminals that have been coordinately scheduled, 4) Time domain resource allocation information for the control channel of a user terminal that has been coordinately scheduled, 5) Includes at least one of the following: scheduling resource configuration information for user terminals that have been coordinately scheduled.

[0105] In some embodiments, the signal modulation configuration information of the cooperatively scheduled user terminal is 1) A modulation and coding scheme table used by the cooperatively scheduled user terminals, 2) Whether different modulation and encoding scheme tables are configured for the co-scheduled user terminal and this user terminal, 3) The signal modulation order of the co-scheduled user terminal (the signal modulation order includes one of BPSK, QPSK, 16QAM, 64QAM, 256QAM, and 1024QAM), and at least one of the following.

[0106] In some embodiments, the time-frequency resource configuration information of the co-scheduled user terminal may include, but is not limited to, index information for physical resource blocks (PRBs) and / or time-domain symbol index information.

[0107] In some embodiments, the reference signal configuration information of the cooperatively scheduled user terminal is 1) Configuration information of at least one of the following reference signals configured for a user terminal coordinately scheduled by a network-side device: a phase tracking reference signal (PT-RS), a channel status information reference signal (CSI-RS), and a time-frequency tracking reference signal (TRS). 2) Whether different reference signal configuration information is configured for the user terminal that is being coordinately scheduled and for this user terminal, and at least one of the above.

[0108] In some embodiments, the time-domain resource allocation information for the control channel of the cooperatively scheduled user terminal is, 1) The time domain start symbol and / or continuation symbol length of the control channel of a user terminal that has been coordinately scheduled, 2) Whether different time domain resource allocation information is configured for the user terminal that is being coordinately scheduled, or at least one of the above.

[0109] Furthermore, in some embodiments, the scheduling resource configuration information of the co-scheduled user terminal includes at least one of the following: the number of users to be multiplexed, the number of user streams to be multiplexed, and whether both the co-scheduled user terminal and the user terminal are in full-slot transmission mode.

[0110] Based on the same inventive concept, embodiments of this disclosure also provide a method for handling user-to-user interference in a MU-MIMO scenario. In principle, this method can be performed by any electronic device with computing power. In some embodiments, the method for handling user-to-user interference in a MU-MIMO scenario provided in embodiments of this disclosure can be performed by a network-side device within the aforementioned system architecture. In some other embodiments, the method for handling user-to-user interference in a MU-MIMO scenario provided in embodiments of this disclosure can be implemented through interaction between a network-side device and a terminal within the aforementioned system architecture.

[0111] Figure 5 shows a flowchart of the method for handling user-to-user interference in a MU-MIMO scenario according to an embodiment of the present disclosure. As shown in Figure 5, the method for handling user-to-user interference in a MU-MIMO scenario provided by an embodiment of the present invention includes the following steps.

[0112] In S502, information regarding the ability to support MU-MIMO inter-user interference suppression is reported to the network-side device.

[0113] In S504, auxiliary information is received from the network-side device, and this auxiliary information is used to help the terminal perform MU-MIMO inter-user interference processing when receiving downlink data.

[0114] In some embodiments, before reporting support capability information for MU-MIMO inter-user interference suppression to a network-side device, the method for handling inter-user interference in a MU-MIMO scenario provided by embodiments of the present invention may further include the step of receiving a capability query request transmitted from a network-side device and, based on the capability query request, reporting its own support capability information for MU-MIMO inter-user interference handling.

[0115] In some embodiments, the support capability information reported to the network-side device in S502 includes, but is not limited to, whether the terminal supports advanced receive functions for MU-MIMO inter-user interference suppression and / or elimination.

[0116] In some embodiments, the advanced receiving function reported by the terminal may include, but is not limited to, at least one of (1) MU-MIMO inter-user interference suppression based on a first receiving algorithm and (2) MU-MIMO inter-user interference rejection based on a second receiving algorithm.

[0117] In some embodiments, the support capability information reported to the network-side device in S502 may further include, but is not limited to, information regarding whether the terminal supports advanced reception based on blind detection. In a particular implementation, the terminal may only receive auxiliary information transmitted from the network-side device if it does not support advanced reception based on blind detection, thereby reducing the terminal's energy consumption.

[0118] In some embodiments, as shown in Figure 6, the method for handling user-to-user interference in a MU-MIMO scenario provided in the embodiments of this disclosure may further include step S602.

[0119] In S602, if the terminal supports the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination, it receives information from the network-side device instructing the terminal to turn the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination on or off.

[0120] As shown in Figure 6, in some embodiments, information instructing a terminal to turn on or off advanced receive functions for MU-MIMO inter-user interference suppression and / or elimination may be received by any (but not limited to) the following methods:

[0121] In S602a, information is received via upper-layer semi-static signaling instructing the terminal to turn on or off the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination.

[0122] In S602b, information is obtained via the Physical Layer Downlink Control Channel (PDCCH) that instructs the terminal to turn on or off the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination.

[0123] When instructing a terminal to turn on or off advanced receive functions for MU-MIMO inter-user interference suppression and / or elimination via upper-layer semistatic signaling, some embodiments may use, but are not limited to, at least one of the following methods:

[0124] (1) The terminal is instructed to turn on or off the advanced receive function for suppressing and / or eliminating MU-MIMO inter-user interference via function switching signaling.

[0125] (2) The terminal is implicitly instructed via auxiliary information to turn on or off the advanced receive function for suppressing and / or eliminating MU-MIMO inter-user interference.

[0126] In some embodiments, as shown in Figure 7, the method for handling user-to-user interference in a MU-MIMO scenario provided in the embodiments of this disclosure may further include step S702.

[0127] In S702, if the terminal supports advanced receive functions for MU-MIMO inter-user interference suppression and / or elimination, it receives auxiliary information transmitted from the network-side device via upper-layer semi-static signaling and / or the physical layer downlink control channel (PDCCH).

[0128] In some embodiments, if the advanced receiving function supported by the terminal includes a MU-MIMO inter-user interference suppression function based on a first receiving algorithm and / or a MU-MIMO inter-user interference rejection function based on a second receiving algorithm, the S702 may be implemented in the following ways, but is not limited to these.

[0129] In S702a, if the terminal supports MU-MIMO inter-user interference suppression based on the first receiving algorithm, it receives auxiliary information transmitted from the network-side device via upper-layer semi-static signaling.

[0130] In S702b, if the terminal supports MU-MIMO inter-user interference rejection based on a second receiving algorithm, it receives auxiliary information transmitted from the network-side device via upper-layer semi-static signaling and / or physical layer downlink control channel (PDCCH).

[0131] The first receiving algorithm described above can be any receiving algorithm capable of achieving MU-MIMO inter-user interference suppression, and the second receiving algorithm described above can be any receiving algorithm capable of achieving MU-MIMO inter-user interference rejection. In some embodiments, the first receiving algorithm is the R-ML algorithm, and the second receiving algorithm is either the R-ML algorithm or the E-MMSE-IRC algorithm.

[0132] In some embodiments, when the upper-layer semistatic signaling is a radio resource control (RRC) signaling, the auxiliary information received by the terminal via the radio resource control (RRC) signaling includes, but is not limited to, at least one of the following: DMRS configuration information for the co-scheduled user terminal, modulation and coding scheme table information for the co-scheduled user terminal, reference signal configuration information for the co-scheduled user terminal, time-domain resource allocation information for the control channel of the co-scheduled user terminal, and scheduling resource configuration information for the co-scheduled user terminal. Details of this information have been described above and will not be repeated here.

[0133] In some embodiments, the auxiliary information transmitted by the network-side device and received by the terminal via the physical layer downlink control channel (PDCCH) includes, but is not limited to, at least one of the following: signal modulation configuration information for the co-scheduled user terminal, time-frequency resource configuration information for the co-scheduled user terminal, reference signal configuration information for the co-scheduled user terminal, time-domain resource allocation information for the control channel of the co-scheduled user terminal, and scheduling resource configuration information for the co-scheduled user terminal. Details of this information have been described above and will not be repeated here.

[0134] The embodiments of this disclosure also provide network-side devices, which are based on the same inventive concept and are described in the following embodiments. Since the principle of solving the problem in these embodiments of network-side devices is the same as in the embodiments of the method described above, the implementation of these embodiments of network-side devices can refer to the implementation of the embodiments of the method described above, and redundant explanations will not be repeated.

[0135] Figure 8 is a schematic diagram of a network-side device in an embodiment of the present disclosure, and as shown in Figure 8, this network-side device includes a terminal interference suppression capability information acquisition module 801 and an auxiliary information distribution module 802.

[0136] The terminal interference suppression capability information acquisition module 801 is configured to receive support capability information for MU-MIMO inter-user interference suppression reported by the terminal. The auxiliary information distribution module 802 is configured to send auxiliary information to the terminal, which is used to help the terminal perform MU-MIMO inter-user interference processing when receiving downlink data.

[0137] In some embodiments, the network-side device provided in the embodiments of the present disclosure may further include a terminal capability information request module 803, which is configured to send capability query requests to a terminal, which is used to request the terminal to report support capability information for MU-MIMO inter-user interference handling.

[0138] In some embodiments, the support capability information acquired by the terminal interference suppression capability information acquisition module 801 includes, but is not limited to, whether the terminal supports advanced receive functions for MU-MIMO inter-user interference suppression and / or elimination.

[0139] In embodiments of the present disclosure, the advanced receiving function reported by the terminal may include, but is not limited to, at least one of (1) MU-MIMO inter-user interference suppression based on a first receiving algorithm and (2) MU-MIMO inter-user interference rejection based on a second receiving algorithm.

[0140] The first receiving algorithm is any receiving algorithm capable of achieving MU-MIMO inter-user interference suppression, and the second receiving algorithm is any receiving algorithm capable of achieving MU-MIMO inter-user interference rejection. In some embodiments, the first receiving algorithm is the R-ML algorithm, and the second receiving algorithm is either the R-ML algorithm or the E-MMSE-IRC algorithm.

[0141] In some embodiments, the support capability information reported by the terminal may also include whether the terminal supports advanced reception based on blind detection. The support capability information reported by the terminal may, but may not, include whether the terminal supports advanced reception based on blind detection. In a specific implementation, the auxiliary information distribution module 802 is also configured to send auxiliary information to the terminal if the terminal does not support advanced reception based on blind detection.

[0142] In some embodiments, the network-side devices provided in embodiments of the present disclosure may further include an interference handling function instruction module 804 configured to instruct a terminal to turn on or off an advanced receive function for MU-MIMO inter-user interference suppression and / or elimination if the terminal supports such a function.

[0143] In some embodiments, the interference processing function instruction module 804 is also configured to instruct the terminal to turn on or off the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination by one of the following methods: These methods include, but are not limited to, instructing the terminal to turn on or off the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination via upper-layer semistatic signaling, and instructing the terminal to turn on or off the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination via a physical layer downlink control channel (PDCCH).

[0144] Furthermore, in some embodiments, the interference processing function instruction module 804 is also configured to instruct the terminal to turn on or off an advanced receive function for suppressing and / or eliminating MU-MIMO inter-user interference via upper-layer semistatic signaling, or to turn on or off an advanced receive function for suppressing and / or eliminating MU-MIMO inter-user interference via function switching signaling, or to implicitly instruct the terminal to turn on or off an advanced receive function for suppressing and / or eliminating MU-MIMO inter-user interference via auxiliary information, but is not limited to these configurations.

[0145] In some embodiments, if the terminal supports advanced receive functions for MU-MIMO inter-user interference suppression and / or elimination, the auxiliary information distribution module 802 is further configured to transmit auxiliary information to the terminal via upper-layer semi-static signaling and / or physical-layer downlink control channels (PDCCH).

[0146] In some embodiments, the auxiliary information distribution module 802 is also configured to transmit auxiliary information to the terminal via upper-layer semistatic signaling if the terminal supports MU-MIMO inter-user interference suppression based on a first receiving algorithm, and to transmit auxiliary information to the terminal via upper-layer semistatic signaling and / or physical layer downlink control channel (PDCCH) if the terminal supports MU-MIMO inter-user interference rejection based on a second receiving algorithm.

[0147] In some embodiments, when the upper-layer semistatic signaling is radio resource control (RRC) signaling, the auxiliary information transmitted by the auxiliary information distribution module 802 to the terminal via the radio resource control (RRC) signaling may include, but is not limited to, at least one of the following: DMRS configuration information for the co-scheduled user terminal, modulation and coding scheme table information for the co-scheduled user terminal, reference signal configuration information for the co-scheduled user terminal, time-domain resource allocation information for the control channel of the co-scheduled user terminal, and scheduling resource configuration information for the co-scheduled user terminal. Details of this information have been described above and will not be repeated here.

[0148] In some embodiments, the auxiliary information transmitted by the auxiliary information distribution module 802 to the terminal via the physical layer downlink control channel (PDCCH) may include, but is not limited to, at least one of the following: signal modulation configuration information for the co-scheduled user terminal, time-frequency resource configuration information for the co-scheduled user terminal, reference signal configuration information for the co-scheduled user terminal, time-domain resource allocation information for the control channel of the co-scheduled user terminal, and co-scheduled user terminal scheduling resource configuration information. Details of this information have been described above and will not be repeated here.

[0149] The embodiments of this disclosure also provide terminals described in the following embodiments, based on the same inventive concept. Since the principle by which this terminal embodiment solves the problem is the same as that of the method embodiment described above, the implementation of this terminal embodiment can refer to the implementation of the method embodiment described above, and redundant explanations will not be repeated.

[0150] Figure 9 is a schematic diagram of a terminal in an embodiment of the present disclosure. As shown in Figure 9, the terminal comprises an interference processing capability information reporting module 901 and an auxiliary information receiving module 902.

[0151] The interference processing capability information reporting module 901 is configured to report support capability information for MU-MIMO inter-user interference suppression to network-side devices. The auxiliary information receiving module 902 is configured to receive auxiliary information transmitted from network-side devices, which is used to help terminals perform MU-MIMO inter-user interference processing when receiving downlink data.

[0152] In some embodiments, the terminal provided in the embodiments of this disclosure may further include a terminal capability query request receiving module 903 configured to receive capability query requests transmitted from a network-side device and to report its own capability information for MU-MIMO inter-user interference processing based on the capability query requests.

[0153] In some embodiments, the support capability information reported to the network-side device by the interference processing capability information reporting module 901 may include, but is not limited to, whether the terminal supports advanced receive capabilities for MU-MIMO inter-user interference suppression and / or elimination.

[0154] In some embodiments, the advanced receiving function reported by the terminal may include, but is not limited to, at least one of (1) MU-MIMO inter-user interference suppression based on a first receiving algorithm and (2) MU-MIMO inter-user interference rejection based on a second receiving algorithm.

[0155] In some embodiments, the support capability information reported to the network-side device by the interference processing capability information reporting module 901 may include, but is not limited to, whether the terminal supports advanced reception based on blind detection. In specific implementations, the terminal can receive auxiliary information transmitted from the network-side device only if it does not support advanced reception based on blind detection, thereby reducing the terminal's energy consumption.

[0156] In some embodiments, the terminal provided in embodiments of the present disclosure may further include an advanced receive function switch module 904 configured to receive information from a network-side device instructing the terminal to turn on or off the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination, if the terminal supports the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination.

[0157] Furthermore, in some embodiments, the advanced receive function toggle module 904 is also configured to receive information from a network-side device instructing the terminal to turn on or off the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination by any of the following methods. This method includes, but is not limited to, receiving information from a network-side device instructing the terminal to turn on or off the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination via upper-layer semistatic signaling, and obtaining information from a network-side device instructing the terminal to turn on or off the advanced receive function for MU-MIMO inter-user interference suppression and / or elimination via a physical layer downlink control channel (PDCCH).

[0158] When instructing a terminal to turn on or off an advanced receive function for MU-MIMO inter-user interference suppression and / or elimination via upper-layer semistatic signaling, in some embodiments, at least one of the following is used: (1) instructing the terminal to turn on or off an advanced receive function for MU-MIMO inter-user interference suppression and / or elimination via function switching signaling, and (2) implicitly instructing the terminal to turn on or off an advanced receive function for MU-MIMO inter-user interference suppression and / or elimination via auxiliary information.

[0159] In some embodiments, the auxiliary information receiving module 902 is also configured to receive auxiliary information transmitted from network-side devices via upper-layer semi-static signaling and / or physical layer downlink control channels (PDCCHs) if the terminal supports advanced receiving capabilities for MU-MIMO inter-user interference suppression and / or elimination.

[0160] In some embodiments, if the advanced receiving functions supported by the terminal include MU-MIMO inter-user interference suppression based on a first receiving algorithm and / or MU-MIMO inter-user interference rejection based on a second receiving algorithm, the auxiliary information receiving module 902 is also configured to receive auxiliary information transmitted from network-side devices via upper-layer semi-static signaling when the terminal supports MU-MIMO inter-user interference suppression based on the first receiving algorithm, and to receive auxiliary information transmitted from network-side devices via upper-layer semi-static signaling and / or physical layer downlink control channels (PDCCH) when the terminal supports MU-MIMO inter-user interference rejection based on the second receiving algorithm.

[0161] The first receiving algorithm may be any receiving algorithm capable of achieving MU-MIMO inter-user interference suppression, and the second receiving algorithm may be any receiving algorithm capable of achieving MU-MIMO inter-user interference rejection. In some embodiments, the first receiving algorithm is the R-ML algorithm, and the second receiving algorithm is either the R-ML algorithm or the E-MMSE-IRC algorithm.

[0162] In some embodiments, when the upper-layer semistatic signaling is a radio resource control (RRC) signaling, the auxiliary information received by the terminal via the radio resource control (RRC) signaling may include, but is not limited to, at least one of the following: DMRS configuration information for the co-scheduled user terminal, modulation and coding scheme table information for the co-scheduled user terminal, reference signal configuration information for the co-scheduled user terminal, time-domain resource allocation information for the control channel of the co-scheduled user terminal, and scheduling resource configuration information for the co-scheduled user terminal. Details of this information have been described above and will not be explained further here.

[0163] In some embodiments, the auxiliary information transmitted by the network-side device and received by the terminal via the physical layer downlink control channel (PDCCH) may include, but is not limited to, at least one of the following: signal modulation configuration information for the co-scheduled user terminal, time-frequency resource configuration information for the co-scheduled user terminal, reference signal configuration information for the co-scheduled user terminal, time-domain resource allocation information for the control channel of the co-scheduled user terminal, and scheduling resource configuration information for the co-scheduled user terminal. Details of this information have been described above and will not be explained further here.

[0164] The examples and application scenarios realized by the above module and corresponding steps are the same as, but not limited to, those disclosed in the embodiments of the above method. The above module can be executed as part of a device on a computer system such as a computer executable instruction set.

[0165] In summary, the methods for handling inter-user interference in MU-MIMO scenarios provided in embodiments of the present disclosure, the network-side device and terminal define a reporting mechanism for various advanced receive function support capabilities for inter-terminal user interference suppression and / or elimination in MU-MIMO scenarios, thereby allowing the network-side device to instruct the terminal to turn on or off advanced receive functions for MU-MIMO inter-user interference suppression and / or elimination via upper-layer semi-static signaling and / or physical layer downlink control channel (PDCCH) based on the terminal's reported support capabilities and MU-MIMO scheduling status, and / or transmit auxiliary information to the terminal via upper-layer semi-static signaling and / or physical layer downlink control channel (PDCCH) to help the terminal perform MU-MIMO inter-user interference processing (interference suppression and / or elimination) when receiving downlink data.

[0166] The user-to-user interference handling solutions in MU-MIMO scenarios provided in the embodiments of this disclosure can be features added to the Rel-18 protocol on the terminal side to reduce MU-MIMO user-to-user interference. The user-to-user interference handling solutions in MU-MIMO scenarios provided in the embodiments of this disclosure can achieve, but are not limited to, the following technical effects.

[0167] (1) Individual reports on interference suppression for each terminal, including whether or not auxiliary demodulation signaling by the base station is necessary, allow the base station to configure different signaling and time-frequency resources for users according to their different terminal capabilities, thereby ensuring the reliability of users receiving downlink data.

[0168] (2) The ability to switch interference suppression functions on and off using upper-layer semistatic signaling or physical-layer dynamic signaling prevents the terminal from performing unnecessary channel estimation for multiplexed users in non-MU-MIMO scenarios (in E-MMSE-IRC, the terminal needs to detect the multiplexed user's channel), thereby saving the terminal's energy consumption.

[0169] (3) Network-assisted interference detection signaling is designed to support terminals based on E-MMSE-IRC / R-ML, enabling relevant reception even for terminals that cannot perform blind detection. E-MMSE-IRC requires channel information of multiplexing users, thus requiring DMRS configuration information, and the R-ML algorithm also requires constellation information of RE levels of multiplexing users in order to perform interference symbol search.

[0170] Those skilled in the art will understand that various aspects of this disclosure can be implemented as systems, methods, or program products. Accordingly, various aspects of this disclosure can be implemented as complete hardware implementations, complete software implementations (including firmware, microcode, etc.), or combinations of hardware and software, which are collectively referred to here as “circuits,” “modules,” or “systems.”

[0171] An electronic device 1000 according to such embodiments of the present disclosure will be described below with reference to Figure 10. The electronic device 1000 shown in Figure 10 is merely an example and is not intended to limit the function or scope of use of the embodiments of the present disclosure.

[0172] As shown in Figure 10, the electronic device 1000 is implemented as a general-purpose computing device. The components of the electronic device 1000 may include, but are not limited to, the at least one processing unit 1010 described above, the at least one storage unit 1020 described above, and a bus 1030 connecting different system components (including the storage unit 1020 and the processing unit 1010).

[0173] The storage unit stores program code, which can be executed by the processing unit 1010, thereby enabling the processing unit 1010 to perform steps according to various exemplary embodiments of the disclosure described in the “Exemplary Methods” section above. For example, the processing unit 1010 can perform steps, in embodiments of the above methods, of receiving support capability information for MU-MIMO inter-user interference processing reported from a terminal, and of transmitting auxiliary information to the terminal, which is used to assist the terminal in performing MU-MIMO inter-user interference processing when receiving downlink data.

[0174] The memory unit 1020 may include a readable medium in the form of a volatile memory unit such as a random access memory unit (RAM) 10201 and / or a cache memory unit 10202, and may further include a read-only memory unit (ROM) 10203.

[0175] The memory unit 1020 may further include a program / utility 10204 having a set (at least one) of program modules 10205. Such program modules 10205 may include, but are not limited to, an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment.

[0176] Bus 1030 can represent one or more types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of the various bus architectures.

[0177] The electronic device 1000 can communicate with one or more external devices 1040 (e.g., keyboards, pointing devices, Bluetooth devices, etc.), one or more devices that enable a user to interact with the electronic device 1000, and / or any device (e.g., routers, modems, etc.) that enables the electronic device 1000 to communicate with one or more other computing devices. Such communication may occur via the input / output (I / O) interface 1050. Furthermore, the electronic device 1000 can communicate with one or more networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks such as the Internet) via the network adapter 1060. As shown in the figure, the network adapter 1060 communicates with other modules of the electronic device 1000 via the bus 1030. It should be understood that other hardware and / or software modules may be used in conjunction with the electronic device 1000, although these are not shown in the figure. Other hardware and / or software modules include, but are not limited to, microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0178] Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented via software or via software in combination with the necessary hardware. Accordingly, the technical solutions relating to the embodiments of this disclosure can be implemented in the form of a software product which can be stored on a non-volatile storage medium (such as a CD-ROM, USB flash drive, or mobile hard disk) or on a network and includes instructions for enabling a computing device (such as a personal computer, server, terminal device, or network device) to perform the methods according to the embodiments of this disclosure.

[0179] In particular, according to embodiments of this disclosure, the process described above with reference to the flowchart can be implemented as a computer program product, which includes a computer program, and when the computer program is executed by a processor, it realizes a method for handling user-to-user interference in the aforementioned MU-MIMO scenario.

[0180] In exemplary embodiments of this disclosure, a computer-readable storage medium is also provided. This computer-readable storage medium may be a readable signal medium or a readable storage medium. Figure 11 is a schematic diagram of a computer-readable storage medium in an embodiment of this disclosure. As shown in Figure 11, the computer-readable storage medium 1100 stores a program product capable of implementing the methods described above in this disclosure. In some possible embodiments, various aspects of this disclosure can also be implemented in the form of a program product containing program code. When the program product is executed on a terminal device, the program code causes the terminal device to perform steps according to various exemplary embodiments of this disclosure described in the “Exemplary Methods” section above.

[0181] More specific examples of computer-readable storage media in this disclosure include, but are not limited to, electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0182] In this disclosure, a computer-readable storage medium may include data signals that propagate in the baseband or as part of a carrier wave and carry readable program code. Such propagated data signals may take various forms and include, but are not limited to, electromagnetic signals, optical signals, or any suitable combination thereof. The readable signal medium may be any readable medium other than the readable storage medium, and this readable medium may transmit, propagate, or transmit programs used by or in conjunction with instruction execution systems, apparatus, or devices.

[0183] Optionally, program code contained in a computer-readable storage medium can be transmitted using any suitable medium, including but not limited to wireless, wired, optical cable, RF, or any suitable combination thereof.

[0184] In specific implementation, the program code for performing the operations of the Disclosure may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java and C++, traditional procedural programming languages ​​such as C, or similar programming languages. The program code may run entirely on a user computing device, partially on a user device, run as a standalone software package, partially on a user computing device and partially on a remote computing device, or run entirely on a remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or to an external computing device (for example, via the Internet using an Internet service provider).

[0185] While the detailed description above refers to multiple modules or units of a device for performing operations, this division is not mandatory. In fact, according to embodiments of this disclosure, the features and functions of two or more of the above modules or units can be embodied in a single module or unit. Conversely, the features and functions of the above single module or unit can be further divided and embodied in multiple modules or units.

[0186] Furthermore, although the steps of the methods disclosed herein are shown in a specific order in the figures, this does not require or imply that the steps must be performed in this specific order, or that all steps must be performed to achieve the desired result. In addition, or instead, certain steps may be omitted, multiple steps may be combined into a single step, and / or a single step may be broken down into multiple steps.

[0187] Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by software in combination with the necessary hardware. Accordingly, the technical solutions according to the embodiments of the disclosure can be implemented in the form of a software product which can be stored on a non-volatile storage medium (such as a CD-ROM, USB flash drive, or mobile hard disk) or on a network and includes instructions which can cause a computing device (such as a personal computer, server, mobile terminal, or network device) to perform the method according to the embodiments of the disclosure.

[0188] Those skilled in the art will readily conceive of other embodiments of the Disclosure by examining this Specification and practicing the inventions disclosed herein. In accordance with the general principles of disclosure, this Disclosure is intended to encompass all variations, uses, or adaptive changes of the Disclosure, including common or customary art in the art not disclosed herein. The Specification and Examples should be considered for illustrative purposes only, and the true scope and spirit of the Disclosure are indicated by the appended Claims.

Claims

1. A method for handling user-to-user interference in a MU-MIMO scenario applied to a network-side device, The steps include receiving information on the support capability for MU-MIMO user-to-user interference processing reported by the terminal, The steps include transmitting auxiliary information to the terminal, wherein the auxiliary information is used to assist the terminal in performing MU-MIMO inter-user interference processing when receiving downlink data. A method for handling user-to-user interference in a MU-MIMO scenario, characterized by the above.

2. The support capability information reported by the terminal includes whether the terminal supports advanced receiving functions for MU-MIMO inter-user interference suppression and / or elimination. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 1.

3. The aforementioned advanced receiving function is MU-MIMO user-to-user interference suppression based on the first receiving algorithm, Includes at least one of the following: MU-MIMO inter-user interference rejection based on a second receiving algorithm. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 2.

4. The support capability information reported by the terminal further includes whether the terminal supports advanced receiving functionality based on blind detection. The step of transmitting auxiliary information to the terminal includes the step of transmitting auxiliary information to the terminal if the terminal does not support an advanced receiving function based on blind detection. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 2.

5. If the terminal supports an advanced receiving function for suppressing and / or eliminating MU-MIMO inter-user interference, the step further includes instructing the terminal to turn on or off the advanced receiving function for suppressing and / or eliminating MU-MIMO inter-user interference. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 2.

6. The step of instructing the terminal to turn on or off the advanced receiving function for suppressing and / or eliminating MU-MIMO inter-user interference is: The steps include instructing the terminal to turn on or off an advanced receiving function for suppressing and / or eliminating MU-MIMO inter-user interference via upper-layer semi-static signaling, The procedure includes one of the following steps: instructing the terminal to turn on or off an advanced receive function for MU-MIMO inter-user interference suppression and / or elimination via a physical layer downlink control channel (PDCCH). The method for handling user-to-user interference in a MU-MIMO scenario according to feature 5.

7. The step of instructing the terminal to turn on or off an advanced receiving function for suppressing and / or eliminating MU-MIMO inter-user interference via upper-layer semi-static signaling is: The steps include instructing the terminal to turn on or off the advanced receiving function for suppressing and / or eliminating MU-MIMO inter-user interference via function switching signaling, The procedure includes at least one of the following steps: implicitly instructing the terminal via auxiliary information to turn on or off an advanced receiving function for suppressing and / or eliminating MU-MIMO inter-user interference. The method for handling user-to-user interference in a MU-MIMO scenario according to feature 6.

8. If the terminal supports advanced receiving functions for MU-MIMO inter-user interference suppression and / or elimination, the step further includes transmitting auxiliary information to the terminal via upper-layer semi-static signaling and / or physical-layer downlink control channels (PDCCH). A method for handling user-to-user interference in a MU-MIMO scenario according to feature 2.

9. The step of transmitting auxiliary information to the terminal via upper-layer semi-static signaling and / or physical layer downlink control channel (PDCCH) is: If the terminal supports MU-MIMO inter-user interference suppression based on a first receiving algorithm, the steps include transmitting auxiliary information to the terminal via upper-layer semi-static signaling, If the terminal supports MU-MIMO inter-user interference rejection based on a second receiving algorithm, the step includes transmitting auxiliary information to the terminal via upper-layer semi-static signaling and / or physical-layer downlink control channel (PDCCH). The method for handling user-to-user interference in a MU-MIMO scenario according to feature 8.

10. The aforementioned upper-layer semistatic signaling is radio resource control (RRC) signaling, and the auxiliary information transmitted to the terminal via the radio resource control (RRC) signaling is: DMRS configuration information of user terminals that have been coordinately scheduled, Cooperatively scheduled user terminal modulation and encoding scheme table information, Reference signal configuration information of user terminals that have been coordinately scheduled, Time domain resource allocation information for the control channel of a user terminal that has been coordinately scheduled, Includes at least one of the following: scheduling resource configuration information for a user terminal that has been coordinately scheduled. The method for handling user-to-user interference in a MU-MIMO scenario according to feature 8.

11. The DMRS configuration information of the aforementioned cooperatively scheduled user terminals is: The network-side device configures a DMRS sequence scramble initial value for the co-scheduled user terminal, and the network-side device configures a different DMRS sequence scramble initial value for the co-scheduled user terminal, including at least one of these. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 10.

12. The modulation and coding scheme table information of the cooperatively scheduled user terminals is as follows: The network-side device includes at least one of the following: a modulation and coding scheme table configured on the co-scheduled user terminal, and whether different modulation and coding scheme tables are configured on the co-scheduled user terminal and this user terminal. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 10.

13. The reference signal configuration information of the cooperatively scheduled user terminal is as follows: Configuration information of at least one of the following reference signals, configured by the network-side device for the user terminal that has been co-scheduled: a phase tracking reference signal (PT-RS), a channel state information reference signal (CSI-RS), and a time-frequency tracking reference signal (TRS), This includes at least one of the following: whether the user terminal that is being coordinately scheduled and the user terminal have different reference signal configuration information configured. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 10.

14. The time domain resource allocation information for the control channel of the cooperatively scheduled user terminal is as follows: The time domain start symbol and / or continuation symbol length of the control channel of a user terminal that has been coordinately scheduled, This includes at least one of the following: whether the user terminals that are being coordinately scheduled and the user terminals themselves have different time domain resource allocation information configured. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 10.

15. The scheduling resource configuration information of the cooperatively scheduled user terminals is as follows: The number of users to be duplicated in each downlink data scheduling, The number of user streams that are multiplexed in each downlink data scheduling, The system includes at least one of the following: whether both the co-scheduled user terminal and this user terminal are in full-slot transmission mode, and A method for handling user-to-user interference in a MU-MIMO scenario according to feature 10.

16. The auxiliary information transmitted to the terminal via the physical layer downlink control channel (PDCCH) is: Cooperatively scheduled user terminal signal modulation configuration information, Cooperatively scheduled user terminal time-frequency resource configuration information, Reference signal configuration information of user terminals that have been coordinately scheduled, Time domain resource allocation information for the control channel of a user terminal that has been coordinately scheduled, Includes at least one of the following: scheduling resource configuration information for a user terminal that has been coordinately scheduled. The method for handling user-to-user interference in a MU-MIMO scenario according to feature 8.

17. The signal modulation configuration information of the cooperatively scheduled user terminal is as follows: The modulation and coding scheme table used by the cooperatively scheduled user terminal, Whether different modulation and encoding scheme tables are configured for the co-scheduled user terminal and this user terminal, The signal modulation order of the cooperatively scheduled user terminal, and at least one of the above, The aforementioned signal modulation order includes one of the following: BPSK, QPSK, 16QAM, 64QAM, 256QAM, or 1024QAM. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 16.

18. The time-frequency resource configuration information of the cooperatively scheduled user terminal includes at least one of the following: physical resource block (PRB) index information and time-domain symbol index information. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 16.

19. The reference signal configuration information of the cooperatively scheduled user terminal is as follows: Configuration information of at least one of the following reference signals, configured by the network-side device for the user terminal that has been co-scheduled: a phase tracking reference signal (PT-RS), a channel state information reference signal (CSI-RS), and a time-frequency tracking reference signal (TRS), This includes at least one of the following: whether the user terminal that is being coordinately scheduled and the user terminal have different reference signal configuration information configured. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 16.

20. The time domain resource allocation information for the control channel of the cooperatively scheduled user terminal is as follows: The time domain start symbol and / or continuation symbol length of the control channel of a user terminal that has been coordinately scheduled, This includes at least one of the following: whether the user terminals that are being coordinately scheduled and the user terminals themselves have different time domain resource allocation information configured. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 16.

21. The scheduling resource configuration information of the cooperatively scheduled user terminals is as follows: The number of users who are duplicated, The number of user streams to be multiplexed, The system includes at least one of the following: whether both the co-scheduled user terminal and this user terminal are in full-slot transmission mode, and A method for handling user-to-user interference in a MU-MIMO scenario according to feature 16.

22. The first receiving algorithm is the R-ML algorithm, and the second receiving algorithm is either the R-ML algorithm or the E-MMSE-IRC algorithm. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 3 or 9.

23. Prior to the step of receiving support capability information for MU-MIMO inter-user interference suppression reported by the terminal, the method: The step further includes sending a capability inquiry request to the terminal, The capability inquiry request is used to request the terminal to report support capability information for MU-MIMO inter-user interference processing. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 1.

24. A method for handling user-to-user interference in a MU-MIMO scenario applied to a terminal, A step of reporting support capability information for MU-MIMO inter-user interference suppression to the network-side device, The step of receiving auxiliary information transmitted by the network-side device, the auxiliary information being used to assist the terminal in performing MU-MIMO inter-user interference processing when receiving downlink data, includes: A method for handling user-to-user interference in a MU-MIMO scenario, characterized by the above.

25. The aforementioned support capability information includes whether the terminal supports advanced receiving functions for MU-MIMO inter-user interference suppression and / or elimination. The method for handling user-to-user interference in a MU-MIMO scenario according to feature 24.

26. The aforementioned advanced receiving function is MU-MIMO user-to-user interference suppression based on the first receiving algorithm, Includes at least one of the following: MU-MIMO inter-user interference rejection based on a second receiving algorithm. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 25.

27. The support capability information further includes whether the terminal supports an advanced receiving function based on blind detection. The step of receiving auxiliary demodulation information transmitted by the network-side device includes, if the terminal does not support an advanced reception function based on blind detection, the step of receiving auxiliary demodulation information transmitted by the network-side device. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 25.

28. If the terminal supports an advanced receiving function for MU-MIMO inter-user interference suppression and / or elimination, the step further includes receiving information instructing the terminal by the network-side device to turn the advanced receiving function for MU-MIMO inter-user interference suppression and / or elimination on or off. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 25.

29. The step of receiving information instructing the terminal to turn on or off the advanced receiving function for MU-MIMO inter-user interference suppression and / or elimination is: The steps include receiving information via upper-layer semi-static signaling that the network-side device instructs the terminal to turn on or off an advanced receiving function for MU-MIMO inter-user interference suppression and / or elimination, The steps include: obtaining information via a physical layer downlink control channel (PDCCH) that instructs the terminal to turn on or off an advanced receive function for MU-MIMO inter-user interference suppression and / or elimination; The method for handling user-to-user interference in a MU-MIMO scenario according to feature 28.

30. If the terminal receives information via upper-layer semistatic signaling instructing the network-side device to turn on or off the advanced receiving function for MU-MIMO inter-user interference suppression and / or elimination, the network-side device further: The terminal is instructed to turn on or off the advanced receiving function for suppressing and / or eliminating MU-MIMO inter-user interference via function switching signaling. The terminal is implicitly instructed to turn on or off the advanced receiving function for suppressing and / or eliminating MU-MIMO inter-user interference via auxiliary demodulation information. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 29.

31. If the terminal supports advanced receive functions for MU-MIMO inter-user interference suppression and / or elimination, the step further includes receiving auxiliary demodulation information transmitted by a network-side device via upper-layer semi-static signaling and / or physical layer downlink control channel (PDCCH). A method for handling user-to-user interference in a MU-MIMO scenario according to feature 25.

32. The step of receiving auxiliary demodulation information transmitted by a network-side device via upper-layer semi-static signaling and / or physical layer downlink control channel (PDCCH) is: If the terminal supports MU-MIMO inter-user interference suppression based on a first receiving algorithm, the steps include receiving auxiliary demodulation information transmitted by a network-side device via upper-layer semi-static signaling, If the terminal supports MU-MIMO inter-user interference rejection based on a second receiving algorithm, the terminal includes the step of receiving auxiliary demodulation information transmitted by a network-side device via upper-layer semi-static signaling and / or physical layer downlink control channel (PDCCH). A method for handling user-to-user interference in a MU-MIMO scenario according to feature 31.

33. The aforementioned upper-layer semistatic signaling is radio resource control (RRC) signaling, and the auxiliary demodulation information received by the terminal via the radio resource control (RRC) signaling is DMRS configuration information of user terminals that have been coordinately scheduled, Cooperatively scheduled user terminal modulation and encoding scheme table information, Reference signal configuration information of user terminals that have been coordinately scheduled, Time domain resource allocation information for the control channel of a user terminal that has been coordinately scheduled, Includes at least one of the following: scheduling resource configuration information for a user terminal that has been coordinately scheduled. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 31.

34. The DMRS configuration information of the aforementioned cooperatively scheduled user terminals is: The network-side device configures a DMRS sequence scramble initial value for the co-scheduled user terminal, and the network-side device configures a different DMRS sequence scramble initial value for the co-scheduled user terminal, including at least one of these. The method for handling user-to-user interference in a MU-MIMO scenario according to feature 33.

35. The modulation and coding scheme table information of the cooperatively scheduled user terminals is as follows: The network-side device includes at least one of the following: a modulation and coding scheme table configured on the co-scheduled user terminal, and whether different modulation and coding scheme tables are configured on the co-scheduled user terminal and this user terminal. The method for handling user-to-user interference in a MU-MIMO scenario according to feature 33.

36. The reference signal configuration information of the cooperatively scheduled user terminal is as follows: Configuration information of at least one of the following reference signals, configured by the network-side device for the user terminal that has been co-scheduled: a phase tracking reference signal (PT-RS), a channel state information reference signal (CSI-RS), and a time-frequency tracking reference signal (TRS), This includes at least one of the following: whether the user terminal that is being coordinately scheduled and the user terminal have different reference signal configuration information configured. The method for handling user-to-user interference in a MU-MIMO scenario according to feature 33.

37. The time domain resource allocation information for the control channel of the cooperatively scheduled user terminal is as follows: The time domain start symbol and / or continuation symbol length of the control channel of a user terminal that has been coordinately scheduled, This includes at least one of the following: whether the user terminals that are being coordinately scheduled and the user terminals themselves have different time domain resource allocation information configured. The method for handling user-to-user interference in a MU-MIMO scenario according to feature 33.

38. The scheduling resource configuration information of the cooperatively scheduled user terminals is as follows: The number of users to be duplicated in each downlink data scheduling, The number of user streams that are multiplexed in each downlink data scheduling, The system includes at least one of the following: whether both the co-scheduled user terminal and this user terminal are in full-slot transmission mode, and The method for handling user-to-user interference in a MU-MIMO scenario according to feature 33.

39. The auxiliary demodulation information transmitted by the network-side device, which the terminal receives via the physical layer downlink control channel (PDCCH), is: Cooperatively scheduled user terminal signal modulation configuration information, Cooperatively scheduled user terminal time-frequency resource configuration information, Reference signal configuration information of user terminals that have been coordinately scheduled, Time domain resource allocation information for the control channel of a user terminal that has been coordinately scheduled, Includes at least one of the following: scheduling resource configuration information for a user terminal that has been coordinately scheduled. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 29.

40. The signal modulation configuration information of the cooperatively scheduled user terminal is as follows: The modulation and coding scheme table used by the cooperatively scheduled user terminal, Whether different modulation and encoding scheme tables are configured for the co-scheduled user terminal and this user terminal, The signal modulation order of the cooperatively scheduled user terminal, and at least one of the above, The aforementioned signal modulation order includes one of the following: BPSK, QPSK, 16QAM, 64QAM, 256QAM, or 1024QAM. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 39.

41. The time-frequency resource configuration information of the cooperatively scheduled user terminal includes at least one of the following: physical resource block (PRB) index information and time-domain symbol index information. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 39.

42. The reference signal configuration information of the cooperatively scheduled user terminal is as follows: Configuration information of at least one of the following reference signals, configured by the network-side device for the user terminal that has been co-scheduled: a phase tracking reference signal (PT-RS), a channel state information reference signal (CSI-RS), and a time-frequency tracking reference signal (TRS), This includes at least one of the following: whether the user terminal that is being coordinately scheduled and the user terminal have different reference signal configuration information configured. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 39.

43. The time domain resource allocation information for the control channel of the cooperatively scheduled user terminal is as follows: The time domain start symbol and / or continuation symbol length of the control channel of a user terminal that has been coordinately scheduled, This includes at least one of the following: whether the user terminals that are being coordinately scheduled and the user terminals themselves have different time domain resource allocation information configured. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 39.

44. The scheduling resource configuration information of the cooperatively scheduled user terminals is as follows: The number of users who are duplicated, The number of user streams to be multiplexed, The system includes at least one of the following: whether both the co-scheduled user terminal and this user terminal are in full-slot transmission mode, and A method for handling user-to-user interference in a MU-MIMO scenario according to feature 41.

45. The first receiving algorithm is the R-ML algorithm, and the second receiving algorithm is either the R-ML algorithm or the E-MMSE-IRC algorithm. A method for handling user-to-user interference in a MU-MIMO scenario according to feature 26 or 32.

46. Before the step of reporting support capability information for MU-MIMO inter-user interference suppression to the network-side device, the method: The further step includes receiving a capability query request sent by a network-side device, The capability inquiry request is used to request the terminal to report support capability information for MU-MIMO inter-user interference processing. The method for handling user-to-user interference in a MU-MIMO scenario according to feature 24.

47. A terminal interference suppression capability information acquisition module configured to receive support capability information for MU-MIMO inter-user interference suppression reported by a terminal, The system includes an auxiliary information distribution module configured to transmit auxiliary information to the aforementioned terminal, The aforementioned auxiliary information is used to assist the terminal in performing MU-MIMO inter-user interference processing when receiving downlink data. A network-side device characterized by the following features.

48. An interference processing capability information reporting module configured to report support capability information for MU-MIMO inter-user interference suppression to network-side devices, The system includes an auxiliary information receiving module configured to receive auxiliary information transmitted by the aforementioned network-side device, The aforementioned auxiliary information is used to assist the terminal in performing MU-MIMO inter-user interference processing when receiving downlink data. A terminal characterized by the following features.

49. Processor and The system comprises a memory for storing executable instructions of the processor, The processor is configured to execute the method for handling user-to-user interference in a MU-MIMO scenario described in any one of claims 1 to 46 by executing the executable instructions. An electronic device characterized by the following features.

50. A computer program is stored, and when the computer program is executed by the processor, a method for handling user-to-user interference in a MU-MIMO scenario described in any one of claims 1 to 46 is realized. A computer-readable storage medium characterized by the following features.

51. The computer program includes a computer program, and when the computer program is executed by a processor, it realizes a method for handling user-to-user interference in a MU-MIMO scenario as described in any one of claims 1 to 46. A computer program product characterized by the following features.

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