Method of estimating a downlink channel

Details Method of estimating a downlink channel Method of estimating a downlink channel

2005-11-01

2005-11-01

Nguyen, Duc (Department: 2643)

Telecommunications

Transmitter and receiver at separate stations

Having measuring, testing, or monitoring of system or part

C455S069000, C455S070000

Reexamination Certificate

active

06961542

ABSTRACT:
A method of estimating a downlink channel between a base station and a mobile terminal in a mobile telecommunication system. In the method the base station estimates the uplink channel between the mobile terminal and the base station, deduces, from the variations in the uplink channel, variations in the down link channels, makes an initial estimation of the down link channel at a first instant, and estimates at a second instant the downlink channel from the initial estimation at the first instant and variations in the downlink channel between the first and second instants.

REFERENCES:
patent: 5592490 (1997-01-01), Barratt et al.
patent: 6615024 (2003-09-01), Boros et al.
patent: WO 99/14870 (1999-03-01), None
patent: WO 99/57820 (1999-11-01), None

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