Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1997-05-30
2000-10-31
Vo, Nguyen
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455447, 455562, H04B 724
Patent
active
06141557&
ABSTRACT:
The present invention relates to a millimeter-wave communication system for one-way and/or two-way video, voice and data services that leverages cell-site diversity, subscriber-unit adaptability and a reflection dominated propagation model. To this end, a variety of omni-directional and directional antenna plans, cell-site structures and adaptive reception/transmission plans are envisioned in the present invention. Cell-site diversity is employed and permits shadowed subscriber units to be serviced from the best choice of the surrounding cell-sites based upon millimeter-wave propagation efficiency and not geometric convenience. Cell-site diversity is used to mitigate the ill-effects of environmental and atmospheric factors. Finally, the present plan reduces the reliance on repeaters by using statistically optimal conditions for cell-site selection with reflection based models rather than line-of-sight models, as relied upon in the prior art.
REFERENCES:
patent: 5365571 (1994-11-01), Rha et al.
patent: 5463673 (1995-10-01), Herscovici
patent: 5483667 (1996-01-01), Faruque
patent: 5507034 (1996-04-01), Bodin et al.
patent: 5519409 (1996-05-01), Uematsu et al.
patent: 5537122 (1996-07-01), Eguchi
patent: 5559866 (1996-09-01), O'Neill
patent: 5644791 (1997-07-01), Brady et al.
patent: 5646942 (1997-07-01), Oliver et al.
patent: 5668610 (1997-09-01), Bossard et al.
patent: 5809431 (1998-09-01), Bustamante et al.
patent: 5828960 (1998-10-01), Tang et al.
patent: 5828962 (1998-10-01), Ho-A-Chuck
patent: 5926762 (1999-07-01), Arpee et al.
patent: 5987328 (1998-11-01), Ephremides et al.
T. Fujii, "Effect of reduction of Mobile Communications Co-channel Interference by Transmission Power Control considering received Signal Level Correlations", Electronics and Communications in Japan, Part 1, vol. 76, No. 9, 1993, pp. 89-103.
C. Rypinski, "Economic design of Interference limited Radiotelephone Systems", XP 002048287, 3rd IEEE Vehicular Technology Conference, Toronto, Canada, May 25-27, 1983, pp. 332-340.
Rypinski C A: "Economic design of interference limited radiotelephone systems" 33.sup.rd IEEE Vehicular Technology Conference, Toronto, ONT1, Canada, May 25-27, 1983, pp. 332-340.
Fujii T: "Effect of Reduction of Mobile Communications Co-Channel Interference by Transmission Power Control Considering Received Signal Level Correlations" Electronics & Communications in Japan, Part I--Communications, vol. 76, No. 9, Sep. 1, 1993, pp. 89-103.
Nguyen Duc
The Whitaker Corporation
Vo Nguyen
LandOfFree
LMDS system having cell-site diversity and adaptability does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with LMDS system having cell-site diversity and adaptability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and LMDS system having cell-site diversity and adaptability will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2064086