Integrated sub-channel and power distribution method and device in cell relay system

A relay system and sub-channel technology, applied in the field of integrated sub-channel and power allocation, can solve the problems of lack of power allocation and sub-channel allocation solutions

Inactive Publication Date: 2008-06-04
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Currently, there is a lack of solutions that consider both power allocation and sub-channel allocation in cells containing relay stations

Method used

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  • Integrated sub-channel and power distribution method and device in cell relay system
  • Integrated sub-channel and power distribution method and device in cell relay system
  • Integrated sub-channel and power distribution method and device in cell relay system

Examples

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Embodiment Construction

[0022] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0023] The present invention consists of the following structures:

[0024] like figure 1 and 2 As shown, the user (SS) side includes:

[0025] 201: The pilot receiving module, which receives the pilot signal sent from the relay station;

[0026] 202: The channel gain calculation module calculates the channel gain on each sub-channel according to the strength of the pilot signal received by the pilot receiving module;

[0027] 203: a feedback module, which feeds back the measured channel gain to the relay station.

[0028] like figure 1 and 3 As shown, the relay station (RS) end includes:

[0029] 301: a pilot frequency sending module, used to send a pilot frequency to the user end;

[0030] 302: The channel gain receiving module receives the channel gain sent by the client;

[0031] 303: a feedback module, feeding back the channel gain to the c...

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Abstract

According to the invention, a device based on a comprehensive sub channel in a cell relay system of an orthogonal frequency division multiple access and power assignment is provided. The device comprises: a plurality of user sides which feeds back channel gain measured in every sub channel to a base station through each relay station; the each relay station and a base station. which ensures a return power ratio in every sub channel of every user side according to channel gain in every sub channel feed back from every user side, and then according to the selected user sides and sub channels which have the best return power ratio, updates the transmission power in the selected sub channels of every relay station and the modulation mode in the selected sub channels of the selected user sides step by step, renews the return power ratio in every sub channel of every user side to ensure the final sub channel and power assignment proposal.

Description

technical field [0001] The present invention relates to the field of mobile communication, and more specifically, relates to a method and device for allocating integrated sub-channels and power in an Orthogonal Frequency Division Multiple Access-based cell relay system, so as to improve the throughput and fairness of the system. Background technique [0002] With the popularity of mobile user data services and the future mobile communication system with video streaming as the main selling point, mobile operators are faced with providing users with better service quality and higher throughput. The scarcity of spectrum resources makes increasing cell density an important means to improve spectrum utilization and provide higher throughput. However, base station equipment is generally expensive, and using cell relays to replace some base stations has become an ideal solution. The cell relay system has been paid attention to and researched by many organizations such as 3GPP LTE,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04B7/005H04B7/14H04W72/08
Inventor 吴起郑旭峰周潘云林恩泽林亨奎
Owner BEIJING SAMSUNG TELECOM R&D CENT
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