Method of partial parallel interference cancellation

Details Method of partial parallel interference cancellation Method of partial parallel interference cancellation

2008-04-01

2008-04-01

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C333S150000, C333S151000, C333S152000, C333S153000, C333S154000, C333S155000, C333S193000, C333S194000, C333S195000, C333S196000, C342S150000, C342S151000, C342S152000, C342S153000, C342S154000, C342S155000, C342S193000, C342S194000, C342S195000, C342S196000, C370S319000, C370S320000, C370S321000, C370S330000, C370S335000, C370S342000, C370S345000, C370S347000

Reexamination Certificate

active

10843447

ABSTRACT:
A method of Partial Parallel Interference Cancellation (PPIC) is provided for recursively eliminating the Multiple Access Interference from a received signal. Such method is to use a recursion way to eliminate all the Multiple Access Interference (MAI) one by one from the received signal. Moreover, the present invention is to take the output of the pre-stage as the input of the present stage with the recursion method so that we can use only one operating circuit to obtain the function the MAI eliminating.

REFERENCES:
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patent: 7068743 (2006-06-01), Suzuki
patent: 7099378 (2006-08-01), Dunyak et al.
patent: 7242708 (2007-07-01), Wang et al.
patent: 2004/0196892 (2004-10-01), Reznik
Neiyer Correal, “A DSP Based DS-CDMA Multiuser Receiver Employing Partial Parallel Interference Cancellation” IEEE Journal on Selected Areas in Communications, vol. 17, No. 4, Apr. 1999.
R. Michael Buerhere, “Analysis of DS-CDMA Parallel Interference Cancellation With Phase and Timing Errors” IEEE Journal on Selected Areas in Communications, vol. 14, No. 8, Oct. 1996.

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