Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2007-07-31
2007-07-31
Maung, Nay (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S069000, C455S067110, C455S067130, C455S226100, C455S226200, C455S226300
Reexamination Certificate
active
10750924
ABSTRACT:
Calculating of signal-to-interference ratio (SIR) of a mobile device in a wireless communication system. A communication signal transmitted by the mobile device is non-coherently processed. Interference power of the communication signal is estimated and then scaled, and the scaled estimated interference power is subtracted from the processed communication signal to thereby estimate signal power. The SIR is calculated by dividing the estimated signal power by the estimated interference power.
REFERENCES:
patent: 6320915 (2001-11-01), Stott et al.
patent: 6370130 (2002-04-01), Zhou et al.
patent: 6865218 (2005-03-01), Sourour
patent: 2001/0019577 (2001-09-01), Ha
patent: 2003/0031195 (2003-02-01), Okawa et al.
patent: 2004/0093178 (2004-05-01), Shin et al.
patent: 2004/0127213 (2004-07-01), Hwang
patent: 2004/0266469 (2004-12-01), Hayashi et al.
patent: 2005/0037712 (2005-02-01), Rainbolt et al.
patent: 2005/0075122 (2005-04-01), Lindoff et al.
Jalloul L M A et al.; “SIR estimation and closed-loop power control for 3G”; Vehicular Technology Conference, 2003. VTC 2003-Fall, 2003 IEEE 58th Orlando, Fl, USA Oct. 6-9, 2003, Piscataway, NJ, USA, IEEE, Oct. 6, 2003, pp. 831-835, vol. 2, XP010700836.
Ramakrishna et al., Subspace-Based SIR Estimation for CDMA Cellular Systems, IEEE Transactions on Vehicular Technology, Sep. 2000; 49(5):1732-1742.
Pauluzzi et al., A Comparison of SNR Estimation Techniques for the AWGN Channel., IEEE Transactions on Communications, Oct. 2000; 48(10):1681-1691.
Seo et al., SIR-Based Transmit Power Control of Reverse Link for Coherent DS-CDMA Mobile Radio, IEICE Trans. Commun., Jul. 1998; vol. E81-B, No. 7, pp. 1508-1516.
3 GPP TS 25.215 V5.4.0 (Jun. 2003) 3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Physical layer—Measurements (FDD) (Release 5).
3 GPP TS 25.213 V5.3.0 (Jun. 2003) 3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Spreading and modulation (FDD) (Release 5).
Jalloul Louay
Kohlmann Michael
Medlock Joel D.
Dickstein , Shapiro, LLP.
Maung Nay
Rego Dominic E.
LandOfFree
Signal-to-interference ratio estimation for CDMA does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Signal-to-interference ratio estimation for CDMA, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal-to-interference ratio estimation for CDMA will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3808106