Method and apparatus for reducing peak-to-average power ratio of

Details Method and apparatus for reducing peak-to-average power ratio of Method and apparatus for reducing peak-to-average power ratio of

1997-03-31

1999-11-23

Pham, Chi H.

Multiplex communications

Generalized orthogonal or special mathematical techniques

Particular set of orthogonal functions

370249, 455126, H04B 7214, H04J 1300

Patent

active

059912626

ABSTRACT:
A peak-reducing waveform is estimated and summed with a composite signal to reduce the peak-to-average power ratio of the composite signal. The estimate of the peak-reducing waveform is modified to have Walsh code components orthogonal to the assigned Walsh codes. An iterative process of estimating subsequent peak-reducing waveform is implemented to produce a peak-reducing waveform which, when summed with the composite signal, results in a composite signal having a peak-to-average ratio at a desired level and thus does not have the effects of remodulating the assigned Walsh codes. Constraints on the magnitude of the unassigned Walsh code components can be included for controlling the power level under the unassigned Walsh codes.

REFERENCES:
patent: 5103459 (1992-04-01), Gilhousen et al.
patent: 5515396 (1996-05-01), Dalekotzin
patent: 5623485 (1997-04-01), Bi
patent: 5712869 (1998-01-01), Lee et al.

Affiliated with

Also associated with

Rating

Method and apparatus for reducing peak-to-average power ratio of 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 reducing peak-to-average power ratio of, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for reducing peak-to-average power ratio of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1230202