Multiplex communications – Communication over free space – Repeater
Patent
1998-04-13
1999-08-24
Olms, Douglas W.
Multiplex communications
Communication over free space
Repeater
370468, 370477, 370521, 370545, 455 121, H04B 7212, H04J 318
Patent
active
059433248
ABSTRACT:
Methods and apparatus for mobile station to mobile station communications in a mobile satellite communications system include an asymmetrical TDMA formatting scheme. According to exemplary embodiments, a first mobile station broadcasts a first signal to an orbiting satellite using a first TDMA format. The satellite receives the first signal, maps the first TDMA format to a second TDMA format and broadcasts a second signal having the second TDMA format to a second mobile station. Advantageously, exemplary embodiments utilize an elastic buffer to allow the satellite to map the uplink TDMA format to the downlink TDMA format without having to demodulate and re-modulate communications signals.
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Dent Paul W.
Ramesh Rajaram
Reinhold Stanley L.
Ericsson Inc.
Olms Douglas W.
Rao Seema S.
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