Method and apparatus for canceling cross-correlation noise...

Details Method and apparatus for canceling cross-correlation noise... Method and apparatus for canceling cross-correlation noise...

2005-09-27

2008-12-02

Ahn, Sam K (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

Reexamination Certificate

active

07460625

ABSTRACT:
A method and apparatus for canceling cross-correlation noise due to a strong serving cell signal in a wireless communication system is disclosed. The wireless communication system includes a serving cell, at least one neighbor cell and at least one wireless transmit/receive unit (WTRU). The WTRU receives a signal including a signal component transmitted by each of the serving and neighbor cells. The WTRU computes a cross-correlation of a pilot sequence of the serving cell and a pilot sequence of a target cell, and computes a target cell correlation by correlating the received signals with the pilot sequence of the target cell. The WTRU computes a cancellation signal for canceling the cross-correlation, and subtracts the cancellation signal from the target cell correlation. The WTRU then processes the cross-correlation cancelled signal for evaluation of handover.

REFERENCES:
patent: 5799004 (1998-08-01), Keskitalo et al.
patent: 6680727 (2004-01-01), Butler et al.
patent: 7321610 (2008-01-01), Lu
patent: 2008/0043858 (2008-02-01), Lim et al.

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