Method and apparatus for spectrum sharing between satellite and

Details Method and apparatus for spectrum sharing between satellite and Method and apparatus for spectrum sharing between satellite and

1994-11-04

1996-12-10

Pham, Chi H.

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

455 132, 455 511, 455 561, H04B 7185, H04B 719, H04B 7495

Patent

active

055840469

ABSTRACT:
A system and method for spatially and temporally synchronizing satellite (space based) and terrestrial (ground based) communications services using time division multiple access between the two types of service providers is given. Satellite and terrestrial communication services are assigned geographic cell boundaries to prevent conflicting simultaneous use of allocated spectrum. The spatial synchronization of cell boundaries can occur before hand by agreement between the users of the satellite and terrestrial services. This spatial synchronization may conform to geographic as well as political boundaries. Satellite and terrestrial services are assigned time slots to use a given spectrum within a given area. Methods are described for synchronizing the time slots to prevent interference between the services. Synchronization of LMDS and Teledesic services is described in the disclosure of a preferred embodiment.

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