Communication method, receiver and base station

Details Communication method, receiver and base station Communication method, receiver and base station

2007-11-20

2007-11-20

Phu, Sanh D. (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Plural receivers

C455S067130, C375S343000, C375S347000

Reexamination Certificate

active

10760532

ABSTRACT:
A multi-user receiver which uses at least two antenna elements and in which the influence of interference is reduced, the receiver comprises: means (200) for pre-filtering a wideband antenna signal, the pre-filtering means being determined on the basis of a spatial covariance matrix estimate, which spatial covariance matrix estimate is obtained from wideband antenna signals by sampling, arranging sampled values into a signal vector and by multiplying the signal vector by its conjugate transpose vector, means (210, 218) for removing the whitening from signals of predetermined users by using an inverse matrix of the matrix used in the whitening filter, means (202, 204, 206, 208, 210) for performing multi-path combining and multi-antenna combining.

REFERENCES:
patent: 6128355 (2000-10-01), Backman et al.
patent: 2001/0017883 (2001-08-01), Tiirola et al.
patent: 2003/0076908 (2003-04-01), Huang et al.
patent: 2004/0114695 (2004-06-01), Astely et al.
patent: 2005/0101279 (2005-05-01), Lee et al.
patent: 2005/0111596 (2005-05-01), Olsson et al.
patent: WO 98/53560 (1998-11-01), None
patent: WO 02/075950 (2002-09-01), None

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