Multiplex communications – Communication over free space – Repeater
Reexamination Certificate
2006-07-04
2006-07-04
Luther, William A. (Department: 2667)
Multiplex communications
Communication over free space
Repeater
C370S235000, C370S252000, C370S328000, C370S348000, C370S358000, C370S468000
Reexamination Certificate
active
07072313
ABSTRACT:
A flexible slotted Aloha communication protocol for a burst-type communication network divides a communication channel into a series of time cycles, with each time cycle further divided into contiguous time slices of identical duration. All data transmissions in the network begin at the start of a time slice and continue for an integer number of time slices, with the identity of the transmitting terminal, the length of the transmission and error correction, being included within the first time slice of each data transmission. Communication terminals in the network transmit reservation requests to a network hub which receives the reservation requests and reserves reserved time slots each having a number of time slices which matches the length of the data transmission to be transmitted in the reserved time slot. The reserved time slot may include time slices in more than one time cycle. The communication protocol dynamically adjusts reservation parameters to match traffic load conditions on the channel and may reassign communication terminals from one channel to another in order to dynamically balance the load on the channels.
REFERENCES:
patent: 5003534 (1991-03-01), Gerhardt et al.
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patent: 5818823 (1998-10-01), Nakanishi
“Multichannel Reservation Protocols for Satellite Multiple Access Networks”, Victor Leung, Proceedings of the Pacific Rim Conference on Mommunications, computer and Signal Processing, Victoria, CA, May 9-10, 1991, vol. 2, pp. 414-417, XP000280332.
“Selective Reject ALOHA/FCFS with Implicit Reservation”, D. Raychaudhuri et al., IEEE International Conference on Communications, World Prosperity Through Communications, Boston, Jun. 11-14, 1989, vol. 1, pp. 487-493, XP000075496.
Banner & Witcoff
Gilat Satellite Networks, Inc
Luther William A.
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