Random access scheme for mobile satellite communications

Details Random access scheme for mobile satellite communications Random access scheme for mobile satellite communications

1996-03-05

1998-10-13

Marcelo, Melvin

Multiplex communications

Communication over free space

Repeater

370347, 370349, 370508, H04J 306

Patent

active

058223118

ABSTRACT:
A method for transmitting random access signals from a mobile unit to a satellite or other control station which requires the transmission of less information than in conventional terrestrial cellular or proposed mobile satellite systems. According to the method, the mobile unit acquires synchronization from the satellite and transmits reduced random access information to the satellite, and the satellite calculates time adjustment information for the mobile units based on the reduced random access information. The random access information is reduced by predetermining a slot number for each mobile unit, and by transmitting only the odd or even status of the frame number desired by the mobile unit.

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