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Millimeter wave communication multi-user parallel beam training method based on codebook

A beam training, millimeter wave technology, applied in the direction of sustainable communication technology, diversity/multi-antenna system, advanced technology, etc., can solve problems such as performance loss

Active Publication Date: 2019-11-01
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this scheme is only suitable for partially connected structures, and applying it to hybrid precoding architectures will have a huge performance loss

Method used

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  • Millimeter wave communication multi-user parallel beam training method based on codebook
  • Millimeter wave communication multi-user parallel beam training method based on codebook
  • Millimeter wave communication multi-user parallel beam training method based on codebook

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Embodiment Construction

[0100] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0101] (1) if figure 1 As shown, the millimeter wave communication system considered in the present invention is as follows:

[0102] The present invention considers communication between a base station and K users. The base station adopts a hybrid precoding structure including digital precoding and analog precoding; each user only uses analog precoding; the number of radio frequency links between the base station and the user is N RF and 1, the antenna arrays at the transmitting end and the receiving end are both uniform linear arrays with a half-wavelength interval, and N BS and N UE root antenna.

[0103] The millimeter wave communication system model between the base station and the kth user of the present invention is described as follows:

[0104] The signal is sent out through the antenna array after digi...

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Abstract

The invention discloses a millimeter wave communication multi-user parallel beam training method based on a codebook. According to the method, parallel beam training is carried out on a multi-user system by designing beam forming of a sending end. Compared with the existing multi-user serial hierarchical beam training, the method has the advantage that the performance of the existing multi-user serial hierarchical beam training method can be approximated on the premise of greatly reducing the training overhead.

Description

technical field [0001] The invention belongs to the field of millimeter wave wireless communication, and relates to a codebook-based multi-user parallel beam training method for millimeter wave communication. Background technique [0002] With the popularity of mobile terminal devices, people's demand for wireless communication is also increasing. In order to meet people's increasing demand for data traffic, millimeter wave communication (30GHz-300GHz) has attracted widespread attention because of its rich spectrum resources and extremely high transmission rate. [0003] Due to the higher carrier frequency than the existing conventional frequency band communication, millimeter wave communication will have greater path loss when propagating in space. On the other hand, higher carrier frequency enables mmWave communication with smaller antenna size. This enables a larger-scale antenna array to be packaged in a limited area, and the gain of the antenna array is used to compen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04B7/08H04B7/0456H04B7/0452
CPCH04B7/0617H04B7/086H04B7/0456H04B7/0452Y02D30/70
Inventor 戚晨皓陈康建
Owner SOUTHEAST UNIV
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