Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2007-12-05
2010-12-21
Pham, Tuan A (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S423000, C455S013400, C455S069000, C455S127100
Reexamination Certificate
active
07856243
ABSTRACT:
A signal power associated with a signal received in a current time period is determined. The determined signal power is combined with a predicted effective interference to form a predicted signal-to-interference indicator. The predicted signal-to-interference indicator is compared to a target signal-to-interference indicator. One or more transmit power control commands are generated based on the comparison. In one example embodiment, the predicted effective interference is based on an effective interference estimated for a previous time period. In another example embodiment, the predicted effective interference is based on interference contributions estimated in a current time period and a predicted interference cancellation efficiency. The predicted interference cancellation efficiency is based on the estimated interference cancellation efficiency for a previous time period. The technology is particularly useful in receivers that use interference cancellation and achieves excellent transmit power control performance both in terms of accuracy and speed.
REFERENCES:
patent: 5491837 (1996-02-01), Haartsen
patent: 5898750 (1999-04-01), Laakso et al.
patent: 5982807 (1999-11-01), Snell
patent: 6137451 (2000-10-01), Sawahashi et al.
patent: 6473451 (2002-10-01), Seki et al.
patent: 6609008 (2003-08-01), Whang et al.
patent: 2002/0021682 (2002-02-01), Ariyoshi et al.
patent: 2004/0229570 (2004-11-01), Matsumura
patent: 2005/0195924 (2005-09-01), Chen et al.
patent: 2006/0171478 (2006-08-01), Schotten et al.
patent: 2007/0195734 (2007-08-01), Das et al.
patent: WO 2006/081875 (2006-08-01), None
patent: WO 2007/008166 (2007-01-01), None
International Search Report and Written Opinion mailed Jul. 3, 2009 in corresponding PCT Application PCT/SE2008/051175.
International Application No. PCT/SE2007/000943, filed Oct. 26, 2007, Hagerman et al.
International Application No. PCT/SE2007/000942, filed Oct. 26, 2007, Hagerman et al.
International Preliminary Report on Patentability mailed Jun. 8, 2010 in corresponding PCT Application PCT/SE2008/051175.
Gunnarsson Fredrik
Hagerman Bo
Nixon & Vanderhye P.C.
Pham Tuan A
Telefonaktiebolaget LM Ericsson
LandOfFree
Power control for a radio transceiver that uses interference... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power control for a radio transceiver that uses interference..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power control for a radio transceiver that uses interference... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4201210