Apparatus and method for assigning subcarrier in OFDMA...

Details Apparatus and method for assigning subcarrier in OFDMA... Apparatus and method for assigning subcarrier in OFDMA...

2007-04-24

2007-04-24

Ferguson, Keith (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S328000, C370S208000, C370S340000, C370S341000, C370S203000, C370S430000, C455S450000, C455S452100, C455S452200, C455S509000, C455S511000, C455S515000, C375S220000

Reexamination Certificate

active

11214312

ABSTRACT:
A subcarrier assignment apparatus and a subcarrier assignment method, in which each of a plurality of Base Stations (BSs) constituting an Orthogonal Frequency Division Multiple Access (OFDMA) communication system provides services in the capacity of a serving BS to Mobile Stations (MSs). Channel quality information for the respective MSs are fed-back from the respective BSs. Subcarriers are assigned to the respective MSs according to a corresponding scheduling scheme in consideration of the channel quality information for the respective MSs, which are fed-back from the respective BSs, and then BSs which manage the subcarriers assigned to the respective MSs according to the corresponding scheduling scheme are selected. These operations provide site diversity to each of the MSs, and thus system capacity is maximized.

REFERENCES:
patent: 6377636 (2002-04-01), Paulraj et al.
patent: 7072315 (2006-07-01), Liu et al.
patent: 2004/0120289 (2004-06-01), Hamalainen et al.

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