Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2007-06-19
2007-06-19
Phu, Sanh D. (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S561000, C455S452100
Reexamination Certificate
active
10739277
ABSTRACT:
The object of the present invention to provide a directional beam communication system whereby the beam width of a directional beam to be transmitted is reduced by sharing an array antenna among a plurality of adjacent sectors so as to increase the interference suppression effect. The directional beam communication system is configured to communicate with a mobile station MS located in a service area formed by a plurality of sectors S1and S2using a directional beam which is transmitted by an array antenna A including a plurality of antenna elements a. The array antenna A for transmitting the directional beam is shared among at least two adjacent sectors S1and S2.
REFERENCES:
patent: 5889494 (1999-03-01), Reudink et al.
patent: 6070090 (2000-05-01), Feuerstein
patent: 6397082 (2002-05-01), Searle
patent: 6400335 (2002-06-01), Weaver et al.
patent: 6415149 (2002-07-01), Bevan et al.
patent: 6480524 (2002-11-01), Smith et al.
patent: 6542484 (2003-04-01), Ovesjo et al.
patent: 6996418 (2006-02-01), Teo et al.
patent: 7039441 (2006-05-01), Reudink et al.
patent: 1 152 628 (2001-11-01), None
patent: WO 00/51389 (2000-08-01), None
patent: WO 00/79809 (2000-12-01), None
Nakamura Takehiro
Okawa Koichi
Tanaka Shinya
Umesh Anil
NTT DoCoMo Inc.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Phu Sanh D.
LandOfFree
Directional beam communication system, directional beam... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Directional beam communication system, directional beam..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Directional beam communication system, directional beam... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3870740