Methods of dynamically switching return channel transmissions of

Details Methods of dynamically switching return channel transmissions of Methods of dynamically switching return channel transmissions of

1996-09-30

1999-07-13

Hsu, Alpus H.

Multiplex communications

Duplex

Communication over free space

370321, 370337, 370347, 455450, 455509, H04B 7212

Patent

active

059236485

ABSTRACT:
Data transfer efficiencies of a frequency division and/or time division multiple access (FDMA/TDMA) communication systems are improved over prior art systems by distributing signalling and messaging activities over all return channels of a channel group, by varying forward to return channel data rate ratios, and by reducing message transport delays with respect to prior art communication systems, based on message traffic over such channel group. Return channels of a defined channel group are time division controlled and are generic to operate either in a signalling mode or in a messaging mode. Data rates for the forward channel and the return channels may by selected from predefined combinations of forward and return channel data rates. Message transport delays are reduced over prior art delay periods by reducing the frame lengths of data frames transmitted at a specified frame rate over the forward channel and by transmitting network management data other than time-critical data reception results and time slot allocations periodically at a superframe rate which is less than the frame rate.

REFERENCES:
patent: 5229995 (1993-07-01), Strawczynski et al.
patent: 5303234 (1994-04-01), Kou
patent: 5420863 (1995-05-01), Taketsugu et al.
patent: 5542093 (1996-07-01), Bodin et al.
patent: 5590133 (1996-12-01), Billstrom et al.

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