Multiplex communications – Fault recovery
Reexamination Certificate
2005-03-15
2005-03-15
Hsu, Alpus H. (Department: 2665)
Multiplex communications
Fault recovery
C370S245000, C370S337000, C370S347000, C370S458000, C455S067110, C455S115100, C455S103000
Reexamination Certificate
active
06868058
ABSTRACT:
A method for synchronizing transmitters within a communications network by utilizing wide-mode marshaling. Wide-mode marshaling increases the bandwidth dedicated to performing a marshaling process, thereby allowing a controller to quickly marshal the transmitters. Within a TDMA network, a TDMA frame includes a header portion and a multi-channel portion. Each of the transmitters within a TDMA network transmits during an assigned time-slot of the TDMA frame. To marshal a transmitter, the transmitter is requested to transmit a ranging signal to a central controller. If the ranging signal is received during the header portion of the TDMA frame, the controller can accurately detect the ranging signal. However, for longer propagation delays, the length of the header is insufficient. Wide-mode marshaling resolves this by silencing some or all of the transmitters to increase the bandwidth for receiving the ranging signal.
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Cooper William L.
Cullen David H.
Arris International, Inc.
Hsu Alpus H.
Philpott Justin M.
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