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Uplink resource multiplexing method of wireless relay system

A resource multiplexing and wireless relay technology, applied in the field of communication, can solve problems such as reducing system resource utilization, and achieve the effect of improving resource utilization

Inactive Publication Date: 2010-12-08
CHANGZHOU XIAOGUO INFORMATION SERVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, due to the use of orthogonal resource allocation methods in a cell, the mobile stations in the cell use different uplink time-frequency resources, so the system needs huge uplink resources for transmitting uplink data, which greatly reduces the resource utilization of the system

Method used

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  • Uplink resource multiplexing method of wireless relay system
  • Uplink resource multiplexing method of wireless relay system
  • Uplink resource multiplexing method of wireless relay system

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no. 1 approach

[0055] 1. The first embodiment of the uplink resource multiplexing method in the wireless relay system of the present invention: the process of establishing RAS and RSS when the mobile station initially accesses the network;

[0056] When the mobile station is turned on, it first searches the downlink channel and establishes downlink channel synchronization with the base station, then obtains the uplink channel parameters from the uplink channel descriptor (UCD) message of the downlink signal, and then establishes RAS and RSS, the steps are as follows:

[0057] Step 1: the mobile station uses the contention ranging channel to send a randomly selected CDMA code word; wherein, the mobile station obtains the contention ranging channel information from the uplink channel map (UL-MAP);

[0058] Step 2: The base station and the relay station receive the CDMA codeword sent by the mobile station, and the relay stations that receive the CDMA codeword report the results to the base stat...

no. 2 approach

[0065] 2. The second embodiment of the uplink resource multiplexing method in the wireless relay system of the present invention: the process of dynamically adjusting resource multiplexing during the mobile station:

[0066] refer to Figure 5 , when two mobile stations 500 do not perform resource multiplexing, such as mobile station 1 and mobile station 2, assume that the RAS of mobile station 1 at the beginning is {relay station 510, relay station 520}, the RSS is {relay station 520}, and the RAS of mobile station 2 is {relay station 520}. Both RAS and RSS are {relay station 510}, so mobile station 1 and mobile station 2 cannot multiplex the same resource. When mobile station 1 moves while other mobile stations do not move, that is, when mobile station 1 moves from the overlapping coverage area of ​​relay station 502 and relay station 510 to the single coverage area of ​​relay station 520, the adjustment process of uplink resource multiplexing is as follows:

[0067] Step 1...

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Abstract

The invention discloses an uplink resource multiplying method in the wireless relaying system. The method comprises the following steps: the current base station or the relay station to provide service to the mobile station is determined; the same uplink resources are assigned to the various service base station or the mobile station under the relay station. The invention can be applied in the wireless relaying system, and is used to enhance the application rate of the uplink resources.

Description

technical field [0001] The present invention relates to a communication method, in particular to an uplink resource allocation method in a wireless relay system. Background technique [0002] In the wireless communication system, due to the attenuation of the path of electromagnetic waves and the occlusion of buildings, some places become areas with low wireless communication signal strength, and the communication quality of mobile stations (MS, Mobile Station) located in these areas will become poor. very bad. Higher and higher carrier frequencies are being used in new protocols and systems, but radio wave attenuation increases with frequency. Therefore, a high carrier frequency faces the problem of high attenuation, which further limits the signal coverage of a base station (BS, Base Station) in a wireless communication system. [0003] In order to solve the signal coverage problem of the base station, it is usually necessary to use a relay station (RS, Relay Station) to...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W88/08H04W88/12H04W72/12
Inventor 尚政张爱民王媛媛李江
Owner CHANGZHOU XIAOGUO INFORMATION SERVICES
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