Channel allocation for burst transmission to a diversity of...

Details Channel allocation for burst transmission to a diversity of... Channel allocation for burst transmission to a diversity of...

2008-05-01

2009-10-20

Maung, Nay A (Department: 2618)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S039000, C455S452200, C455S556200, C375S141000, C375S145000, C370S310000, C370S312000, C342S352000, C342S354000

Reexamination Certificate

active

07606567

ABSTRACT:
A method for allocating transmission channels to devices configured to communicate short data packets to a diversity of non geostationary satellites is disclosed hereby. The method suggests a dynamic cellular partitioning of the earth surface, based on the smallest intersections of overlapping satellite service areas (“footprints”), defined as mega-cells, and reusing channels in different mega-cells. In addition, a transmission cycle is defined and divided to time slots, synchronized at each device by GPS timing signals, and mega-cells served by more satellites are allocated with fewer time slots, in order to increase the chance of transmitters placed in mega-cells served by fewer satellites to be detected. Further, each mega-cell is divided to cells, and different channels and time slots are allocated to each cell, from those allocated to the corresponding mega-cell. Consequently, collision of transmissions from different mega-cells is reduced, and collision of transmissions from different cells in a mega-cell is avoided.

REFERENCES:
patent: 5268694 (1993-12-01), Jan et al.
patent: 6115371 (2000-09-01), Berstis et al.

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