TDMA system with a virtual reference

Details TDMA system with a virtual reference TDMA system with a virtual reference

1991-11-29

1994-05-03

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 953, 3701054, H04J 306

Patent

active

053094395

ABSTRACT:
A TDMA system operates without the requirement for a reference burst. A station in the TDMA system monitors the bursts from other stations to determine the virtual reference. The virtual reference is then used as the basis, at the station, for transmitting its own burst. For carrier-based TDMA systems, the station can also determine a virtual carrier reference. This is implemented by measuring the received carrier from a plurality of bursts. The received carrier frequency of all of the bursts that have been received can then be averaged, and after correcting for frequency translation introduced by the transponder, the result can be employed as a virtual carrier reference.

REFERENCES:
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patent: 4630267 (1986-12-01), Cortes et al.
patent: 4688216 (1987-08-01), Saburi
patent: 5077445 (1991-12-01), Nawata

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