Apparatus and method for assigning subchannels in an OFDMA...

Details Apparatus and method for assigning subchannels in an OFDMA... Apparatus and method for assigning subchannels in an OFDMA...

2004-11-01

2009-06-09

Taylor, Barry W (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S341000, C370S348000

Reexamination Certificate

active

07545772

ABSTRACT:
A wireless communication system that divides an entire frequency band into a plurality of subcarrier bands and includes a plurality of subchannels, each of which includes a number of subcarrier bands. The number of subcarrier groups is equal to the number of the base stations included in the system and are generated by classifying the subcarrier bands in a period. For a particular base station, corresponding subcarrier bands are detected from each of the groups according to a sequence. The subcarrier bands detected from each of the groups are assigned as a subchannel for the particular base station. Further, the indexes of the subcarrier groups to which each of subcarriers constituting a subchannel belongs are changed whenever the subchannel is assigned, so as to acquire the desired diversity gain.

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European Search Report dated Jan. 21, 2009 issued in counterpart Appln. No. 04025950.

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