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Wireless signal transmission method and apparatus

A technology of wireless signal and transmission method, applied in radio transmission system, transmission system, digital transmission system, etc., can solve the problems of huge radio frequency network, unacceptable power consumption and cost, and achieve the effect of reducing the number of radio frequency

Active Publication Date: 2018-03-30
CHINA MOBILE COMM LTD RES INST +1
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

If the low-frequency solution is directly extended to millimeter-wave massive MIMO with hundreds or thousands of antennas, the system will require a huge radio frequency network, and its power consumption and cost will be unacceptable. For example, a network with 64 antennas The base station of the antenna, only the part of the radio frequency network, consumes up to 16W

Method used

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  • Wireless signal transmission method and apparatus
  • Wireless signal transmission method and apparatus
  • Wireless signal transmission method and apparatus

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Embodiment Construction

[0028] In order to reduce power consumption of millimeter-wave massive MIMO while ensuring system performance, embodiments of the present invention provide a wireless signal transmission method and device.

[0029] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention, and in the absence of conflict, the present invention The embodiments and the features in the embodiments can be combined with each other.

[0030] The wireless signal processing method provided by the embodiment of the present invention can be applied in a mobile communication system, especially in a millimeter wave TDD (time division duplex) system.

[0031] like figure 1 As shown, it is a schematic diagram of the implementation flow of the wireless signal tran...

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Abstract

The invention discloses a wireless signal transmission method and an apparatus. The method and the apparatus are used to reduce power consumption of millimeter-wave large scale MIMO and guarantee system transmission performance. The wireless signal transmission method comprises the following steps of using an equalization matrix to receive uplink pilot signals sent by a plurality of users in different time slots and obtaining a wave beam space signal measurement value; according to the wave beam space signal measurement value, determining an uplink estimation channel; using a downlink estimation channel determined according to the uplink estimation channel to select an optimum wave beam for each user; and according to the selected optimum wave beam, carrying out downlink signal transmission.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a wireless signal transmission method and device. Background technique [0002] The main technical challenge of the next-generation wireless communication standard 5G (5th generation mobile communication technology) is how to greatly improve the spectral efficiency of wireless resources to meet the increasing capacity requirements. There are three feasible technical routes to solve this technical problem: 1) spread spectrum, that is, to use a wider communication frequency band to provide greater channel capacity; Data rate; 3) Improving spectral efficiency, such as using more antennas, especially using a large number of antennas at the base station, by introducing more additional spatial degrees of freedom to improve the spectral efficiency of the system. The combination of millimeter wave and massive multi-input multi-output (MIMO) technology can very cle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/04H04B7/08H04L25/02
CPCH04B7/0413H04B7/088H04B7/0891H04L25/0202H04L25/0224Y02D30/70
Inventor 高昕宇戴凌龙李建军王森韩双锋
Owner CHINA MOBILE COMM LTD RES INST
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