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Apparatus and method for allocating a dedicated access zone to relay station (RS) in broadband wireless access (BWA) communication system

  • US 8,626,181 B2
  • Filed: 09/03/2008
  • Issued: 01/07/2014
  • Est. Priority Date: 09/07/2007
  • Status: Active Grant
First Claim
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1. A method of a Relay Station (RS) in a wireless communication system, the method comprising:

  • relaying communications between a Base Station (BS) and a Mobile Station (MS);

    determining whether a dedicated resource is necessary for the communications with the MS, based on channel conditions between the RS and the MS;

    generating a dedicated access zone request message requesting the BS to allocate a dedicated access zone to the RS, the dedicated access zone request message including bandwidth information;

    transmitting the dedicated access zone request message to the BS;

    receiving a dedicated access zone allocation message from the BS;

    determining whether a dedicated resource, designated by the allocation message, is allocated to the RS; and

    scheduling the dedicated resource based on the dedicated resource zone allocation message received from the BS,wherein the dedicated access zone comprises resources which the RS only uses for a dedicated communication between the RS and the MS, and wherein the determining of whether the dedicated resource is necessary comprises determining whether a Carrier to Interference plus Noise Ratio (CINR) of a channel between the RS and MS exceeds a threshold.

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