Method and apparatus for reducing transmitter peak power...

Details Method and apparatus for reducing transmitter peak power... Method and apparatus for reducing transmitter peak power...

2005-07-28

2009-02-24

Pathak, Sudhanshu C (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S296000, C375S298000, C375S297000, C375S141000, C375S135000, C370S335000

Reexamination Certificate

active

07496145

ABSTRACT:
A method and apparatus for reducing peak transmitter power includes providing a set of orthogonal communication codes for a telecommunications system that includes a set of active user codes and a set of inactive user codes (1404). A communication signal is generated from the set of active user codes (1406). The peak-to-average power ratio of the communication signal is reduced by performing a peak cancellation function on the communication signal that minimizes energy distribution at least one of the set of active user codes and the set of inactive user codes (1410).

REFERENCES:
patent: 5215099 (1993-06-01), Haberl et al.
patent: 5287387 (1994-02-01), Birchler
patent: 5381449 (1995-01-01), Jasper et al.
patent: 5638403 (1997-06-01), Birchler et al.
patent: 5864794 (1999-01-01), Tasaki
patent: 5903551 (1999-05-01), Kingston et al.
patent: 7319713 (2008-01-01), Viero et al.
patent: 2003/0179832 (2003-09-01), Greenwood et al.
patent: 2003/0179833 (2003-09-01), Porco et al.
patent: 2003/0227823 (2003-12-01), Carter et al.
patent: 2006/0215732 (2006-09-01), Chen et al.
Viero et al. (Reducing the Crest Factor of a CDMA Downlink Signal by Adding Unused Channelization Codes; IEEE Communications Letters, vol. 6, No. 10; Oct. 2002; pp. 443-445).

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4053830