Dynamic resource allocation method based on frequency reuse partitioning for OFMDA/FDD system, and frame transmission method therefor
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United States of America Patent
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Feb 14, 2012
Grant Date -
Sep 25, 2008
app pub date -
Aug 17, 2006
filing date -
Aug 19, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Provided are a dynamic resource allocation method based on frequency reuse partitioning for an Orthogonal Frequency Division Multiple Access (OFDMA) system, and a frame transmission method therefor. The dynamic resource allocation method includes: a) dividing a coverage into cells based on frequency reuse partitioning; b) selecting a candidate user to receive a channel allocated thereto based on the ratio; c) acquiring distance information for the candidate user; and d) checking whether the candidate user is in an inner or outer cell area based on the distance information. If the candidate user is in the inner cell area, a subchannel group among subchannel groups having a Frequency Reuse Factor (FRF) lower than a threshold value is selected and subcarriers of the selected subchannel group is allocated. If the candidate user is in the outer cell area, a subchannel group among subchannel groups having a FRF higher than the threshold value is selected.
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