Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2002-11-25
2008-03-04
Payne, David C. (Department: 2611)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S285000, C375S284000, C455S063100, C455S522000, C455S067110
Reexamination Certificate
active
07339994
ABSTRACT:
A system and method for adjusting the power control target for a spread-spectrum communication system is disclosed. A preferred embodiment comprises correcting the power control target based upon the estimated slope of the SIR versus quality of service (QoS) curve under current operating conditions. By using the estimated slope of the current SIR versus QoS curve, the power control target converges to the desired value most quickly, and the SIR target overshoot or undershoot is maximally avoided, and the power rise is minimized, thereby reducing power requirements and signal dropouts. The invention finds application, for example, in personal communication devices such as cellular telephones and may be implemented using a digital signal processor (DSP).
REFERENCES:
patent: 5267262 (1993-11-01), Wheatley, III
patent: 5564074 (1996-10-01), Juntti
patent: 5590409 (1996-12-01), Sawahashi et al.
patent: 5604766 (1997-02-01), Dohi et al.
patent: 5631921 (1997-05-01), Schilling
patent: 5722051 (1998-02-01), Agrawal et al.
patent: 5745520 (1998-04-01), Love et al.
patent: 5790533 (1998-08-01), Burke et al.
patent: 5839056 (1998-11-01), Häkkinen
patent: 5960361 (1999-09-01), Chen
patent: 5991636 (1999-11-01), Won et al.
patent: 6032026 (2000-02-01), Seki et al.
patent: 6154450 (2000-11-01), Wallentin et al.
patent: 6212399 (2001-04-01), Kumar et al.
patent: 6259927 (2001-07-01), Butovitsch et al.
patent: 6259928 (2001-07-01), Vembu
patent: 6285887 (2001-09-01), Mimura
patent: 6292519 (2001-09-01), Popovic
patent: 6337988 (2002-01-01), Agin et al.
patent: 6341224 (2002-01-01), Dohi et al.
patent: 6347083 (2002-02-01), Nishino
patent: 6347231 (2002-02-01), Miya
patent: 6385183 (2002-05-01), Takeo
patent: 6445930 (2002-09-01), Bartleme et al.
patent: 6529482 (2003-03-01), Lundby
patent: 6535532 (2003-03-01), Ackerman et al.
patent: 6751199 (2004-06-01), Sindhushayana et al.
patent: 6823005 (2004-11-01), Chuang et al.
patent: 6829470 (2004-12-01), Kogiantis et al.
patent: 6925113 (2005-08-01), Kim et al.
patent: 2002/0034215 (2002-03-01), Yanagi
patent: 2002/0051482 (2002-05-01), Lomp
patent: 2003/0148769 (2003-08-01), Chi et al.
patent: 2004/0087327 (2004-05-01), Guo
patent: WO 98/45962 (1999-10-01), None
Hsia Daniel Jeng
Lin Wei
Brady W. James
Payne David C.
Shaw Steven A.
Wong Linda
LandOfFree
Method and apparatus for fast convergent power control in a... 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 fast convergent power control in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for fast convergent power control in a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3975442