Pre-distortion method for telecommunication system and...

Details Pre-distortion method for telecommunication system and... Pre-distortion method for telecommunication system and...

2008-01-01

2008-01-01

Kizou, Hassan (Department: 2616)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S342000

Reexamination Certificate

active

10335898

ABSTRACT:
The invention concerns a pre-distortion method for a telecommunication system comprising a base station and at least one user. Each symbol of said user is spread with a coding sequence over a plurality of carriers to produce a plurality of corresponding frequency components of a signal (Si(t)) to be transmitted over an uplink transmission channel to said base station. Each of said frequency components is weighted by a weighting coefficient (ωi(l)), said weighting coefficients being determined from the channel response coefficients (hi(l)) of the corresponding downlink transmission channel at the respective frequencies of said carriers and from a value of the noise variance (σ2) affecting said carriers.

REFERENCES:
patent: 5872814 (1999-02-01), McMeekin
patent: 6118335 (2000-09-01), Nielsen et al.
patent: 6298096 (2001-10-01), Burgin
patent: 6498529 (2002-12-01), Kim et al.
patent: 6577192 (2003-06-01), Maniwa et al.
patent: 6794936 (2004-09-01), Hsu et al.
patent: 6817412 (2004-11-01), Haase
patent: 6952561 (2005-10-01), Kumar et al.
patent: 7027523 (2006-04-01), Jalali et al.
patent: 7035345 (2006-04-01), Jeckeln et al.
patent: 7072381 (2006-07-01), Atarashi et al.
patent: 7158582 (2007-01-01), Gamm et al.
patent: 7200367 (2007-04-01), Wright et al.
patent: 2001/0016014 (2001-08-01), Nam
patent: 2002/0000316 (2002-01-01), Haase
patent: 2002/0044014 (2002-04-01), Wright et al.
patent: 2002/0054585 (2002-05-01), Hanada et al.
patent: 2002/0097784 (2002-07-01), Brunel
patent: 2002/0181549 (2002-12-01), Linnartz et al.
patent: 2002/0191710 (2002-12-01), Jeckeln et al.
patent: 2003/0031270 (2003-02-01), Giardina et al.
patent: 2004/0190598 (2004-09-01), Seki et al.
patent: 2006/0039331 (2006-02-01), Abeta et al.
patent: 2006/0239233 (2006-10-01), Hanada et al.
Li, J et al. (Digital predistortion linearizer for multicarrier spread spectrum; Radio and Wireless Conference, 1999. RAWCON 99. 1999 IEEE Aug. 1-4, 1999 pp. 227-230).
Sundstrom, L et al. (Quantization analysis and design of a digital predistortion linearizer for RF power amplifiers;Vehicular Technology, IEEE Transactions on vol. 45, Issue 4, Nov. 1996 pp. 707-719).
Mandyam, G.D. (Phase predistortion for a cdma2000 system; Signals, Systems and Computers, 2000. Conference Record of the Thirty-Fourth Asilomar Conference on vol. 2, Oct. 29-Nov. 1, 2000 pp. 1308-1312 vol. 2).
Jaehyun et al. (A data predistortion technique for the compensation of nonlinear distortion in MC-CDMA systemsSignal Processing Advances in Wireless Communications, 1999. SPAWC '99. 1999 2nd IEEE Workshop on May 9-12, 1999 pp. 174-177).
Nobilet et al. (Performance of predistortion techniques for uplink MC-CDMA systems with TDD and FDD modesWireless Personal Multimedia Communications, 2002. The 5th International Symposium on vol. 2, Oct. 27-30, 2002 pp. 655-662 vol. 2).
Cho et al.(RF predistortion of power amplifiers using 2/sup nd/ harmonic based technique for optimization of intermodulation products; Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56thvol. 1, Sep. 24-28, 2002 pp. 621-624 vol. 1).
U.S. Appl. No. 10/335,898, filed Jan. 3, 2003, Castelain et al.
U.S. Appl. No. 10/335,870, filed Jan. 3, 2003, Castelain et al.

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