Dense Distributed Wireless Communication Method and System

A wireless communication and distributed technology, applied in the field of multi-user space division multiple access wireless communication, can solve the problems of high transmission power and low spectrum efficiency at the edge of the cell, and achieve the goal of resisting large-scale fading, improving throughput and reducing complexity Effect

Active Publication Date: 2015-09-16
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to further improve the spectral efficiency and cell edge performance, multi-user MIMO and coordinated multi-point transmission technologies are used, but the spectral efficiency and cell edge spectral efficiency that can be achieved are still low, and the required transmit power is high

Method used

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  • Dense Distributed Wireless Communication Method and System
  • Dense Distributed Wireless Communication Method and System
  • Dense Distributed Wireless Communication Method and System

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Embodiment Construction

[0025] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0026] 1. Wireless Communication System Network Architecture

[0027] The network architecture of the dense distributed wireless communication system in this embodiment is as follows figure 1 As shown, the illustrated scene consists of three adjacent cells, each cell has L RAUs, and the set of RAUs is {1,2,...,L}, which are connected to the central processing unit through optical fiber (or other high-speed links) , each RAU has N antennas, each cell has K users, the user set is {1,2,...,K}, each...

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Abstract

Disclosed are a closely distributed wireless communication method and a system therefor. Each cell performing wireless communication closely arranges distributed remote access units (RAUs), and users in the same cell use different time-frequency resources to send detection signals, and a centre processing unit of each cell obtains statistical channel information about the users within the cell and statistical channel information about edge users of adjacent cells according to the received detection signals; each cell determines the edge region users of the cell and an RAU set thereof, and exchanges with the statistical channel information about the edge region users of the adjacent cells; and by using the obtained statistical channel information, the adjacent cells schedule the edge region users and RAUs thereof first, and then schedule the users within respective cells and the RAUs thereof, set an unscheduled RAU into a sleep mode, and finally each user implements the wireless communication of the same time-frequency resource over a selected RAU set. The present invention has the advantages of low complexity, high throughput and low required energy consumption in processing a system signal.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a multi-user space division multiple access wireless communication method using densely distributed nodes. Background technique [0002] In the case of increasingly scarce spectrum resources and explosive growth of wireless data traffic, the wireless communication system after 4G needs new changes. Traditional MIMO technology can effectively improve spectrum efficiency without increasing power and bandwidth resources. At present, this technology has become a key technology of 4G mobile communication standards. In order to further improve the spectral efficiency and cell edge performance, multi-user MIMO and coordinated multipoint transmission technologies are adopted, but the spectral efficiency and cell edge spectral efficiency that can be achieved are still low, and the required transmit power is high. Contents of the invention [0003] Technical problem: In o...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02H04W72/12
CPCH04W52/0219H04W52/0216Y02D30/70
Inventor 高西奇孙强金石张源孙晨
Owner HUAWEI TECH CO LTD
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