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Active User Terminal Selection Method and Base Station in Relay System

A technology of user terminal and relay system, which is applied in the field of active user terminal selection method and base station, can solve the problems of increasing the implementation complexity of user terminals, overcome the complexity and size limitations, overcome the fading characteristics, and reduce the implementation effect of complexity

Active Publication Date: 2014-10-08
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above studies all require the user terminal to decide whether to carry out cooperative transmission. The relay is a passive selection state, and the user terminal needs to monitor the channel signal-to-noise ratio of the base station and each relay terminal in real time, which greatly increases the implementation complexity of the user terminal.

Method used

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  • Active User Terminal Selection Method and Base Station in Relay System
  • Active User Terminal Selection Method and Base Station in Relay System
  • Active User Terminal Selection Method and Base Station in Relay System

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Embodiment Construction

[0087] Embodiments of the present invention provide an active user terminal selection method and a base station in a relay system.

[0088] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0089] The system model of the embodiment of the active user terminal selection method of the present invention is as follows figure 2 As shown, node D represents the destination terminal; node A represents t...

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Abstract

The invention relates to a method for actively selecting a user terminal and a base station. The method for actively selecting the user terminal in the relay system comprises the steps of: searching a user terminal that an uplink can not satisfy the business service quality requirement and a link between the uplink and an appointed relay can satisfy the business service quality requirement; and appointing the user terminal meeting the preset requirement as the user terminal of the appointed relay. By using the invention, a fixed relay or the user terminal with high uplink channel signal to noise ratio is actively appointed by the base station to provide relay service for the user, thus the network transmission reliability is improved, and the realization complexity of the user terminal is reduced while the business service quality requirement is met.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to an active user terminal selection method and a base station in a relay system. Background technique [0002] The future cellular communication system is committed to developing data services with higher rates and greater dynamic range, and at the same time needs to expand network coverage, improve spectrum efficiency, and increase system robustness. Under the condition of low cost, because relay transmission technology can effectively enhance the power efficiency of the system, expand the effective coverage of cellular network cells, and suppress inter-cell interference, etc., relay technology has become an important part of the next-generation wireless communication system architecture. A realization scheme with broad application prospects. Using the "relay" strategy in the existing wireless cellular network, a virtual MIMO (Multi Input Multi Output) antenna arra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W88/08H04W88/18
Inventor 王勇李靖葛建华吴涛
Owner HUAWEI TECH CO LTD