Method and apparatus employed in a user equipment for...

Details Method and apparatus employed in a user equipment for... Method and apparatus employed in a user equipment for...

2004-07-29

2009-02-17

Ho, Duc C (Department: 2619)

Multiplex communications

Communication over free space

Combining or distributing information via code word channels...

C370S342000, C370S281000, C370S294000, C375S346000, C455S296000

Reexamination Certificate

active

07492750

ABSTRACT:
Method and apparatus employed by a UE for interference signal code power noise variance estimation employing a reduced number of samples utilizing the equationσ^n2=T·∑i=1Nsample⁢hn⁡(i)2,whereT=G·γ⁡(r)Nsample,wherein-line-formulae description="In-line Formulae" end="lead"?Nsample=Lchest−Npl·Kmax,in-line-formulae description="In-line Formulae" end="tail"?whereγ⁡(r)=[1+(1r-1)·ln⁡(1-r)]-1and wherer=NsampleLchest.As an alternative, a recursive technique may be employed wherein the noise variance is estimated from the ignored coefficients of the estimated channel output and upgraded recursively as per the following:σ^n2=1KW⁢∑j=1K⁢∑i=1W⁢hi(j)-h^i(j)2,where ĥi(j)are the channel estimates after the post processing and the noise variance estimates {circumflex over (σ)}n−12, and the initial values of ĥi(j)are all zeros.

REFERENCES:
patent: 5263033 (1993-11-01), Seshadri
patent: 5278871 (1994-01-01), Rasky et al.
patent: 5606580 (1997-02-01), Mourot et al.
patent: 5799010 (1998-08-01), Lomp et al.
patent: 6144710 (2000-11-01), Chen et al.
patent: 6144711 (2000-11-01), Raleigh et al.
patent: 6339612 (2002-01-01), Stewart et al.
patent: 6408023 (2002-06-01), Abdesselem et al.
patent: 6731700 (2004-05-01), Yakhnich et al.
patent: 2005/0186933 (2005-08-01), Trans
patent: 0996113 (2000-04-01), None
patent: 07-154361 (1995-06-01), None
patent: 11-136212 (1999-05-01), None
patent: 2001-505723 (2001-04-01), None
patent: 2001-160982 (2001-06-01), None
patent: 2001-313588 (2001-11-01), None
patent: 2003-32168 (2003-01-01), None
patent: 2003-037581 (2003-02-01), None
patent: 2003-318779 (2003-11-01), None
patent: 2003-17193 (2003-03-01), None
patent: 98/09381 (1998-03-01), None
patent: 02/35745 (2002-05-01), None
Luschi, Carlo et al. “Advanced Signal-Processing Algorithms for Energy-Efficient Wireless Communications”, Proceedings of the IEEE, Oct. 2000, pp. 1633-1650.
Luschi, Carlo et al. “Advanced Signal-Processing Algorithms for Energy-Efficient Wireless Communications”, Proceedings of the IEEE, Oct. 2000, pp. 1633-1650.
Third Generation Partnership Project, “Technical Specification Group Radio Access Network; Physical Channels and Mapping of Transport Channels onto Physical Channels (FDD) (Release 1999),” 3GPP TS 25.221 v3.2.0 (Mar. 2000).
Third Generation Partnership Project, “Technical Specification Group Radio Access Network; Physical Channels and Mapping of Transport Channels onto Physical Channels (FDD) (Release 1999),” 3GPP TS 25.221 v3.7.0 (Jun. 2001).
Third Generation Partnership Project, “Technical Specification Group Radio Access Network; Physical Channels and Mapping of Transport Channels onto Physical Channels (FDD) (Release 1999),” 3GPP TS 25.221 v3.11.0 (Sep. 2002).
Third Generation Partnership Project, “Technical Specification Group Radio Access Network; Physical Channels and Mapping of Transport Channels onto Physical Channels (FDD) (Release 4),” 3GPP TS 25.221 v4.1.0 (Mar. 2000).
Third Generation Partnership Project, “Technical Specification Group Radio Access Network; Physical Channels and Mapping of Transport Channels onto Physical Channels (FDD) (Release 4),” 3GPP TS 25.221 v4.7.0 (Dec. 2002).
Third Generation Partnership Project, “Technical Specification Group Radio Access Network; Physical Channels and Mapping of Transport Channels onto Physical Channels (FDD) (Release 5),” 3GPP TS 25.221 v5.5.0 (Mar. 2003).
Third Generation Partnership Project, “Technical Specification Group Radio Access Network; Physical Channels and Mapping of Transport Channels onto Physical Channels (FDD) (Release 6),” 3GPP TS 25.221 v6.1.0 (Mar. 2004).

Affiliated with

Also associated with

Rating

Method and apparatus employed in a user equipment for... 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 employed in a user equipment for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus employed in a user equipment for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4085555