TDM-based fixed wireless loop system

Details TDM-based fixed wireless loop system TDM-based fixed wireless loop system

2005-11-01

2005-11-01

Ton, Dang (Department: 2666)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

Reexamination Certificate

active

06961325

ABSTRACT:
A time-division-multiplexed fixed wireless loop system and methods therefor are disclosed. The system comprises a plurality of cells each having a base station and a plurality of terminals. The base station includes a steerable and adjustable multibeam antenna for communicating with each of the terminals, which have fixed antennas. A cell controller associated with each base station allocates communication time slots so as to minimize mutual interference between base station/terminal links sharing the same time slot. Slot assignment is based on regional, periodically updated interference measurements that are stored in data bases.

REFERENCES:
patent: 4780721 (1988-10-01), Dobson
patent: 5093927 (1992-03-01), Shanley
patent: 5157709 (1992-10-01), Ohteru
patent: 5260968 (1993-11-01), Gardner et al.
patent: 5274844 (1993-12-01), Harrison et al.
patent: 5313461 (1994-05-01), Ahl et al.
patent: 5327576 (1994-07-01), Uddenfeldt et al.
patent: 5448753 (1995-09-01), Ahl et al.
patent: 5448754 (1995-09-01), Ho et al.
patent: 5857147 (1999-01-01), Gardner et al.
patent: 5914946 (1999-06-01), Avidor et al.
patent: 6094575 (2000-07-01), Anderson et al.
patent: 6144652 (2000-11-01), Avidor et al.
patent: 42 15 287 (1993-11-01), None
patent: 0 458 158 (1991-11-01), None
patent: 0 458 768 (1991-11-01), None
patent: 0 648 028 (1995-04-01), None
patent: 2 285 900 (1995-07-01), None
patent: WO 91 09474 (1991-06-01), None
patent: WO 96 22662 (1996-07-01), None
Zander et al., “Capacity of Time-Space Switched Cellular Radio Link Systems For Metropolitan Area Networks,” IEE Proc., vol. 139, No. 5, Oct. 1992, pp. 533-538.
Patent Abstracts of Japan, Pub. No. 07030954, Pub. Date Jan. 31, 1995 to Fujitsu Ltd.
Van Veen et al., “Beamforming: A Versatile Approach to Spatial Filtering,” IEEE Acoustics, Speech and Signal Processing Magazine, US, IEEE, Inc., vol. 5, No. 2. Apr. 1, 1988, pp. 4-24.

Affiliated with

Also associated with

Rating

TDM-based fixed wireless loop system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with TDM-based fixed wireless loop system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and TDM-based fixed wireless loop system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3497497