Directivity control type communication apparatus and...

Details Directivity control type communication apparatus and... Directivity control type communication apparatus and...

2005-01-18

2005-01-18

Tran, CongVan (Department: 2683)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S025000, C455S013300, C342S360000, C342S367000

Reexamination Certificate

active

06845244

ABSTRACT:
The present invention relates to a method for adaptively controlling a transmission radiation pattern. Radio signals coming through a plurality of paths are received and demodulated for each path. The received level or received quality of each demodulated signal is compared to each other to select a signal with the highest level or most excellent quality. A path corresponding to a selected path is set at a path for transmission. When a plurality of signals each with an almost equal level or received quality exists in signals demodulated for each path, a history of transmission power control command (TPC) transmitted from a communication partner is referred. In other words, the reception condition in a communication partner is checked. Thereby, it is judged whether or not the currently selected path is appropriate as the path for transmission.

REFERENCES:
patent: 4384358 (1983-05-01), Shiki et al.
patent: 5610617 (1997-03-01), Gans et al.
patent: 5642348 (1997-06-01), Barzegar et al.
patent: 5894598 (1999-04-01), Shoki
patent: 6377812 (2002-04-01), Rashid-Farrokhi et al.
patent: 6678309 (2004-01-01), Kitahara
patent: 6771984 (2004-08-01), Hiramatsu et al.
patent: 20030092379 (2003-05-01), Brothers et al.
patent: 20040048593 (2004-03-01), Sano
patent: 20040105489 (2004-06-01), Kim et al.
patent: 0807989 (1997-11-01), None
patent: 6197059 (1994-07-01), None
patent: 9074375 (1997-03-01), None
patent: 9219675 (1997-08-01), None
patent: 10117162 (1998-05-01), None
patent: 10276124 (1998-10-01), None

Affiliated with

Also associated with

Rating

Directivity control type communication apparatus and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Directivity control type communication apparatus and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Directivity control type communication apparatus and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3380122