Method and rake receiver for phasor estimation in...

Details Method and rake receiver for phasor estimation in... Method and rake receiver for phasor estimation in...

2007-01-23

2007-01-23

Corrielus, Jean B. (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S144000, C375S349000

Reexamination Certificate

active

09798813

ABSTRACT:
The invention relates to a channel estimation algorithm is proposed for a RAKE receiver for CDMA communication systems operating in the downlink of a mobile communication scenario yielding an improved phasor estimation. Received signals are distributed to a plurality of receiver fingers of a RAKE receiver. Each receiver finger i is assigned to a signal path of the transmitted signal which is subject to phase shift and power dissipation due to reflection, diffraction and scattering. According to the invention the approach partly cancels multipath/multiuser interference and offers the advantage of being able to cope with physically closely spaced multipaths.

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