Transmission control frame generation device and...

Details Transmission control frame generation device and... Transmission control frame generation device and...

2005-09-15

2010-12-14

Thier, Michael T (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S329000, C455S450000

Reexamination Certificate

active

07852814

ABSTRACT:
There is provided a transmission control frame generation device capable of reducing the data amount of feedback information while maintaining a high throughput. In this device, an average quality level calculation unit (182) calculates an average SNR value of a plurality of sub-carriers from a plurality of SNR values corresponding to the plurality of sub-carriers. According to an SNR value corresponding to one of the sub-carriers and the average SNR value, a sub-carrier block configuration unit (185) sets the SNR value of the sub-carrier block containing the sub-carrier. A feedback frame generation unit (187) generates a CSI frame used for controlling transmission in the sub-carrier and indicating the value representing the average SNR value and the value representing the SNR value of the sub-carrier block.

REFERENCES:
patent: 2001/0024427 (2001-09-01), Suzuki
patent: 2005/0120097 (2005-06-01), Walton et al.
patent: 2001156738 (2001-06-01), None
patent: 2001238269 (2001-08-01), None
patent: 2001351971 (2001-12-01), None
patent: 2003152671 (2003-05-01), None
patent: 2003169036 (2003-06-01), None
PCT International Search Report dated Dec. 20, 2005.
B. Classon, et al.; “Multi-dimensional Adaptation and Multi-user Scheduling Techniques for Wireless OFDM Systems”, IEEE International Conference on Communications 2003 (ICC2003), vol. 3, pp. 2251-2255, May 11-15, 2003.

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