Method and apparatus for weighted non-binary repeat...

Details Method and apparatus for weighted non-binary repeat... Method and apparatus for weighted non-binary repeat...

2008-09-09

2008-09-09

Nguyen, Chau T. (Department: 2619)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C714S786000, C714S792000

Reexamination Certificate

active

10345556

ABSTRACT:
An apparatus and method for weighted non-binary RA coding and space-time coding are disclosed. Transmission data is divided in the units of frames each having mN bits, and each frame is further segmented into N blocks, each block containing m bits. The N blocks are converted to N non-binary GF(2m) elements. These N non-binary symbols are repeated by a repetition factor r. The rN symbols are multiplied by weighting factors being GF(2m) elements other than zero. The rN weighted symbols are interleaved and accumulated. The rN accumulated symbols are transmitted to a receiver, or each of the rN accumulated symbols is demapped to m bits prior to transmission. Therefore, information can be transmitted reliably in a wireless communication system.

REFERENCES:
patent: 4383323 (1983-05-01), Timor
patent: 5479416 (1995-12-01), Snodgrass et al.
patent: 5608739 (1997-03-01), Snodgrass et al.
patent: 5623485 (1997-04-01), Bi
patent: 5914933 (1999-06-01), Cimini et al.
patent: 6014411 (2000-01-01), Wang
patent: 6215762 (2001-04-01), Dent
patent: 6728927 (2004-04-01), Crozier
patent: 2001/0001617 (2001-05-01), Koga et al.
patent: 2001/0003088 (2001-06-01), Ogino et al.
patent: 2001/0003208 (2001-06-01), Wan
patent: 2002/0021686 (2002-02-01), Ozluturk et al.
patent: 2002/0184593 (2002-12-01), Dohmen et al.
patent: 0 758 168 (1997-02-01), None
patent: WO 01/56218 (2001-08-01), None
patent: WO 01/95500 (2001-12-01), None
Sae-Young Chung et al., “Analysis of Sum-Product Decoding of Low-Density Parity-check Codes Using a Gaussian Approximation”, IEEE Transactions on Information Theory, vol. 47, No. 2, Feb. 2001, pp. 657-670.
British Search Report dated May 1, 2003, issued in a counterpart application, namely, Appln. No. GB 0301002.2.
Sae-Young Chung et al., “Analysis of Sum-Product Decoding of Low-Density Parity-Check Codes Using a Gaussian Approximation,” IEEE Transactions on Information Theory, Feb. 2001, vol. 47, pp. 657-670.
Brian L. Hughes, “Space-Time Group Codes,” IEEE, Thirty-Fourth Asilomar Conference on Signals, Systems and Computers, Oct. 29-Nov. 1, 2000. pp. 699-704.
European Search Report dated May 26, 2003 issued in a counterpart application, namely Appln No. 03000670.4.

Affiliated with

Also associated with

Rating

Method and apparatus for weighted non-binary repeat... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for weighted non-binary repeat..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for weighted non-binary repeat... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3950188