Method and apparatus for multiple access in a communication...

Multiplex communications – Communication over free space – Combining or distributing information via time channels

Reexamination Certificate

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Details

C370S347000, C370S348000, C370S442000, C370S443000, C455S509000, C455S515000

Reexamination Certificate

active

06847626

ABSTRACT:
A communication system comprising three communication resources: a contention-type access block, a non-contention access block and a second non-contention access block called a reserved block. Each time that a remote unit has a block of data to transfer to a hub station, it sends the block of data over the contention-type access block. It also sends a corresponding notification message over the reserved block. If the hub station receives the notification message but not the block of data, it sends a response message to the remote unit which designates a resource within the non-contention access block. The remote unit then sends the block of data to the hub station over the designated resource.

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