Method and apparatus for computing SIR of time varying...

Details Method and apparatus for computing SIR of time varying... Method and apparatus for computing SIR of time varying...

2011-07-05

2011-07-05

Odom, Curtis B (Department: 2611)

Pulse or digital communications

Receivers

C375S345000

Reexamination Certificate

active

07974365

ABSTRACT:
A method and apparatus for correcting symbols of a common pilot channel (CPICH) to generate an accurate signal-to-interference ratio (SIR) estimate in a wireless communication system are disclosed. In one embodiment, a non-stationary mean of a group of the CPICH symbols is estimated, the CPICH symbols are delayed, and the CPICH symbols are corrected by dividing the delayed CPICH symbols by the estimated non-stationary mean of the group of CPICH symbols. In another embodiment, a signal power estimate is generated based on the magnitude of CPICH symbols, a noise power estimate is generated by subtracting the signal power estimate from a total power estimate based on the magnitude of the CPICH symbols, and a SIR estimate is generated for symbols that have undergone a time varying gain by dividing the signal power estimate by the noise power estimate.

REFERENCES:
patent: 6028894 (2000-02-01), Oishi et al.
patent: 6032026 (2000-02-01), Seki et al.
patent: 6034952 (2000-03-01), Dohi et al.
patent: 6823193 (2004-11-01), Persson et al.
patent: 6967998 (2005-11-01), Chen et al.
patent: 7328019 (2008-02-01), Nishikawa et al.
patent: 2002/0196879 (2002-12-01), Iochi
patent: 2003/0185179 (2003-10-01), Inogai et al.
patent: 2004/0093178 (2004-05-01), Shin et al.
patent: 2004/0116142 (2004-06-01), Wang et al.
patent: 2004/0228272 (2004-11-01), Hasegawa et al.
patent: 2004/0264591 (2004-12-01), Malm et al.
patent: 2005/0036538 (2005-02-01), Niederholz et al.
patent: 2005/0272373 (2005-12-01), Murase
patent: 2007/0207741 (2007-09-01), Jones
patent: 2005-012386 (2005-01-01), None
patent: 01/65717 (2001-09-01), None

Affiliated with

Also associated with

Rating

Method and apparatus for computing SIR of time varying... 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 computing SIR of time varying..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for computing SIR of time varying... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2638933