A user scheduling method and system based on multi-user multiple-input and multiple-output

A multi-input multi-output, user scheduling technology, applied in the field of communication, can solve problems such as transmission interference of different users, and achieve the effect of improving performance and reducing the amount of feedback

Inactive Publication Date: 2019-12-17
BEIJING XINWEI TELECOM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a user scheduling method and system based on multi-user multiple-input multiple-output, to solve the problem of large transmission between different users in the existing user scheduling scheme based on multi-user multiple-input multiple output interference problem

Method used

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  • A user scheduling method and system based on multi-user multiple-input and multiple-output
  • A user scheduling method and system based on multi-user multiple-input and multiple-output
  • A user scheduling method and system based on multi-user multiple-input and multiple-output

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Embodiment 1

[0027] figure 1 It is a schematic flowchart of a user scheduling method based on multi-user multiple-input and multiple-out provided in Embodiment 1 of the present invention. The method can be executed by a user scheduling system based on multiple-user multiple-input and multiple-output. Software and / or hardware implementation in an input-multiple-output user scheduling system. Such as figure 1 As shown, the method includes:

[0028] Step 101, the user equipment receives the signal sent by the base station, and determines the signal energy response curve according to the signal energy obtained in different beam directions.

[0029] The user scheduling system based on MIMO in this embodiment includes a base station and user equipment. When the base station configures multi-antenna transmission, beams directed in different directions can be formed by adjusting phases between different antennas (corresponding to different direction vectors). Exemplarily, the signal sent by th...

Embodiment 2

[0040] image 3 It is a schematic flowchart of a user scheduling method based on multi-user multiple-input and multiple-out provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiment. In this embodiment, the user equipment is based on the sub-band feedback mode The PMI and additional information are fed back in each subband, and the feedback can be periodic or aperiodic.

[0041] The method of the present embodiment comprises the steps:

[0042] Step 301, the user equipment receives the signal sent by the base station, and determines the signal energy response curve according to the signal energy obtained in different beam directions.

[0043] In step 302, the user equipment selects the beam direction corresponding to the maximum value of the signal energy in the interval corresponding to the signal energy response curve from the candidate beam directions included in the target codebook as the target beam dir...

Embodiment 3

[0057] Figure 7 A structural block diagram of a user scheduling system based on multi-user multiple-input multiple-output provided in Embodiment 3 of the present invention, which can be specifically implemented by software and / or hardware configured in the system, and can be implemented by executing a multi-user multiple-input multiple-output based The user scheduling method is used to perform multi-user scheduling. Such as Figure 7 As shown, the system includes a user equipment 71 and a base station 72;

[0058]The user equipment 71 includes a signal energy response curve determination module 711 and a feedback module 712 . Among them, the signal energy response curve determination module 711 is used to receive the signal sent by the base station, and determine the signal energy response curve according to the signal energy obtained in different beam directions; the feedback module 712 is used to determine the target according to the signal energy response curve beam dir...

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Abstract

Examples of the present invention disclose a user scheduling method and system based on multiple users.This method includes: the signal sent by the user device to receive the base station, and determine the signal energy response curve according to the signal energy obtained by the beam direction, determine the target beam direction and additional information according to the signal energy response curve, and put the target beam direction PMI corresponding to the direction of the beam direction.Feedback to the base station with the additional information; the base station obtains the target beam direction according to the received PMI, and dispatch the user equipment in the direction of the target beam, and determine whether it isSchedule.The embodiments of the present invention use the above technical solutions to increase less feedback to reduce the transmission interference between user equipment and other user equipment, and improve the performance under MUMIMO scheduling.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a user scheduling method and system based on multi-user multiple-input multiple-output. Background technique [0002] Broadband communication is often used in existing communication systems, such as the common system based on Orthogonal Frequency Division Multiplexing (OFDM), in an environment with abundant multipath, there are usually very Due to strong frequency-selective fading, different subcarriers have different channel characteristics. Limited by the size of the feedback overhead, the reverse link can only feed back part of the measurement channel to the sender for wireless resource scheduling. [0003] Multiple-Input Multiple-Output (MIMO) technology (also known as MIMO technology) refers to using multiple transmitting antennas and receiving antennas at the transmitting end and receiving end respectively, so that the signal passes throu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0452H04B7/0456H04W72/12
CPCH04B7/0452H04B7/046H04W72/121H04W72/54
Inventor 董付现孙鹏
Owner BEIJING XINWEI TELECOM TECH
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