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Mobile relay selection method, communication method, base station and system

A mobile relay and base station technology, applied in wireless communication, electrical components, etc., can solve the problem of low relay efficiency and achieve the effect of improving relay efficiency

Inactive Publication Date: 2011-06-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The relay node selected by this method may be far away from the target communication terminal, resulting in low relay efficiency

Method used

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  • Mobile relay selection method, communication method, base station and system
  • Mobile relay selection method, communication method, base station and system
  • Mobile relay selection method, communication method, base station and system

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] figure 1 is a schematic diagram of a mobile relay system provided by an embodiment of the present invention, such as figure 1 As shown, in the mobile relay system, there are mainly two kinds of links: the backhaul (backhaul) link between the base station and the relay node, and the access (Access) link between the relay node and the target communication terminal .

[0039] In the current mobile relay system, the main bottleneck affecting the system pe...

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Abstract

The embodiment of the invention discloses a mobile relay selection method, comprising the following steps: sending each pilot frequency signal in each main lobe direction of an antenna, wherein the pilot frequency signal sent in each main lobe direction is orthogonal to the pilot frequency signal sent in any one of other main lobe directions; receiving pilot frequency identities of all pilot frequency signals fed back by idle terminals and channel quality information corresponding to each pilot frequency signal; and selecting a corresponding idle terminal, from idle terminals corresponding toall the pilot frequency identities, to be used as a relay node in the main lobe direction indicated by each pilot frequency identity according to a preset selection strategy and the channel quality information of all the pilot frequency signals, wherein the selected idle terminal provides relay service for a target communication terminal in the main lobe direction indicated by each pilot frequency identity. Accordingly, the embodiment of the invention further discloses a base station and a mobile relay system which can improve the relay efficiency of the system.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method for selecting a mobile relay, a communication method, a base station and a system. Background technique [0002] In the mobile communication system, in order to improve the communication experience of the user at the edge of the cell and expand the coverage of the cell, the system usually introduces a wireless relay node. In a mobile communication system including wireless relay nodes, the base station communicates with the mobile terminal via one or more relay nodes. The relay node receives the signal from the base station, reprocesses it and sends it out, thereby enhancing the strength of the signal received by the mobile terminal. [0003] Mobile relay is a hot research technology in recent years. The wireless relay network with mobile terminals as relay nodes can provide enough effective access points. Compared with fixed relay nodes, it is more suitable for prov...

Claims

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Application Information

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IPC IPC(8): H04W40/22H04W88/08
Inventor 周雷钱莉
Owner HUAWEI TECH CO LTD
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