Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2002-03-22
2008-10-28
Vuong, Quochien B. (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S069000, C455S126000, C375S267000
Reexamination Certificate
active
07444161
ABSTRACT:
The present invention discloses a method of adaptive weighting space-time transmit diversity, comprising: symbols to be transmitted at a transmitting end being output after being space-time encoded according to certain regulation, and the current transmission powers of the two antennae being real-timely adjusted according to the given transmission power weight values; after the transmission powers are determined, the space-time encoded output signals being sent out at two independent antennas by transmitting antenna array in terms of the current transmission power; the fading characters of two wireless channels being estimated by the receiver at a receiving end according to the present received signals and then fed back to the transmitting end; the transmitting end receiving and obtaining the fading amplitude characters of two wireless channels through feedback channel, calculating new adaptive weight values of transmission powers, and adjusting transmission powers according to these weight values. The present invention also discloses a system for implementing the above method of adaptive weighting Space-time Transmit Diversity. In term of the method and structure, the transmission powers can be dynamically adjusted in adaptive weighting manner, in order to boost system performance gain.
REFERENCES:
patent: 5297161 (1994-03-01), Ling
patent: 5499395 (1996-03-01), Doi et al.
patent: 6185258 (2001-02-01), Alamouti et al.
patent: 6343218 (2002-01-01), Kaneda et al.
patent: 6434366 (2002-08-01), Harrison et al.
patent: 6636493 (2003-10-01), Doi et al.
patent: 6643338 (2003-11-01), Dabak et al.
patent: 6766144 (2004-07-01), Kim et al.
patent: 6771988 (2004-08-01), Matsuoka et al.
patent: 6850499 (2005-02-01), Wheatley, III et al.
patent: 6853839 (2005-02-01), Usuda et al.
patent: 2002/0000948 (2002-01-01), Chun et al.
patent: 2002/0013130 (2002-01-01), Kim et al.
patent: 2002/0080735 (2002-06-01), Heath et al.
patent: 2002/0080894 (2002-06-01), Dabak et al.
patent: 2002/0090038 (2002-07-01), Dabak et al.
patent: 2002/0128026 (2002-09-01), Derryberry et al.
patent: 2003/0017835 (2003-01-01), Bergel
patent: 2003/0148738 (2003-08-01), Das et al.
patent: 2006/0115031 (2006-06-01), Lindskog et al.
patent: 2317621 (2001-03-01), None
patent: A2 1028556 (2000-08-01), None
patent: A2 0999658 (2000-10-01), None
patent: 1 073 212 (2001-01-01), None
patent: WO A1 0079701 (2000-12-01), None
Cao Aijun
Popovic Branislav M
Huawei Technologies Co. Ltd.
Vuong Quochien B.
Wendell Andrew
LandOfFree
Self & minus; adaptive weighted space time transmitting... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Self & minus; adaptive weighted space time transmitting..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self & minus; adaptive weighted space time transmitting... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4017355