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Method for selecting and grouping users in multi-antenna system, and communication device

A multi-antenna system and user grouping technology, applied in wireless communication, broadcast service distribution, electrical components, etc., can solve problems such as low system performance, and achieve the effect of improving transmission opportunities, system throughput and spectral efficiency

Active Publication Date: 2011-09-21
HUAWEI TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the method of user selection and grouping based on user orthogonality only considers the spatial characteristics of users, and the performance of the system is low

Method used

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  • Method for selecting and grouping users in multi-antenna system, and communication device
  • Method for selecting and grouping users in multi-antenna system, and communication device
  • Method for selecting and grouping users in multi-antenna system, and communication device

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Embodiment Construction

[0014] In order to make the specific technical solution and the purpose of the invention clearer, further description will be made below in conjunction with specific implementation methods and accompanying drawings.

[0015] Such as figure 1 As shown, the embodiment of the present invention provides a user selection and grouping method in a multi-antenna system, including:

[0016] Step 101: the control node receives access link CSI sent by at least two users.

[0017] Step 102: The control node determines the scheduling priorities of the at least two users according to the access link CSI, and selects the user with the highest scheduling priority as a reference user in the user group.

[0018] Step 103: The control node determines a spatial characteristic value between a user except the reference user and the reference user among the at least two users.

[0019] Step 104: The control node determines grouping function values ​​of users other than the reference user among the...

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PUM

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Abstract

The invention relates to the technical field of communication, and provides a method for selecting and grouping users in a multi-antenna system. The method comprises the following steps of: receiving access link channel state information by a control node, wherein the access link channel state information is transmitted by at least two users; determining scheduling priorities of at least two users according to the access link channel state information, and selecting the user with the highest scheduling priority as a reference user in a user group; determining a spatial character value between the reference user and the user of the at least two users except for the reference user; determining a grouping function value of the user of the at least two users except for the reference user according to the spatial character value and the scheduling priority of the user of the at least two users except for the reference user; and determining the group of the user according to the grouping function value of the user of the at least two users except for the reference user. According to the scheme provided by the embodiment of the invention, channel orthogonality and throughput among users are fully considered, transmission chance of the users is improved, and system throughput and spectrum efficiency are greatly promoted.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a user selection and grouping method and communication equipment in a multi-antenna system. Background technique [0002] Future wireless mobile communication systems need to support higher service rates and provide wider network coverage. A Multiple-Input and Multiple-Output (MIMO) system can overcome fading in wireless communication, provide better space diversity for the system, and obtain higher system capacity. In the MIMO system, multiple users that meet the conditions can be grouped, and resource utilization and system capacity can be improved by multiplexing resources. [0003] In the prior art, user selection and grouping can be performed according to user orthogonality. First calculate the channel transfer function for each user on each subcarrier, then calculate the orthogonality for each user pair, select the first user according to the round-robin sc...

Claims

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Application Information

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IPC IPC(8): H04W4/08H04W72/12
Inventor 王莹吴彤裴郁杉李根张平
Owner HUAWEI TECH CO LTD
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