Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2006-10-31
2006-10-31
Tran, Khanh (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
Reexamination Certificate
active
07130365
ABSTRACT:
This invention discloses a baseband processing method based on smart antenna and interference cancellation. The method includes the steps of: A. making a channel estimation to get a channel response; B. picking up useful symbolic level signals from received digital signals by smart antenna beam forming based on the channel estimation of step A; C. reconstructing the useful symbolic level signals and adding a scrambling code to get the chip level reconstructed signal; D. subtracting the reconstructed signal from the received digital signal; and E. executing steps B to D repeatedly to recover signals for all users. The method of the invention can solve problems associated with interference of multi-path propagation in CDMA systems with smart antennas with better results.
REFERENCES:
patent: 5621752 (1997-04-01), Antonio et al.
patent: 5982327 (1999-11-01), Vook et al.
patent: 6141393 (2000-10-01), Thomas et al.
patent: 6188718 (2001-02-01), Gitlin et al.
patent: 6301470 (2001-10-01), Brunner et al.
patent: 6314147 (2001-11-01), Liang et al.
patent: 6351499 (2002-02-01), Paulraj et al.
patent: 6567462 (2003-05-01), Brunner et al.
patent: 6597678 (2003-07-01), Kuwahara et al.
patent: 1053313 (1997-11-01), None
patent: 1220562 (1999-03-01), None
patent: 647 979 (1995-04-01), None
patent: 899 894 (1999-03-01), None
patent: WO 95/22210 (1995-08-01), None
Alston & Bird LLP
China Academy of Telecommunications Technology
Tran Khanh
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