Method, device and data communication system for multilink polli

Details Method, device and data communication system for multilink polli Method, device and data communication system for multilink polli

1995-05-02

1998-09-08

Safourek, Benedict V.

Multiplex communications

Communication over free space

Combining or distributing information via time channels

370348, 370312, H04L 12403

Patent

active

058055860

ABSTRACT:
A control station (8) is coupled to a plurality of tributary devices (20, 16, 18) by way of at least one high speed broadcast downstream data channel and more than one shared lower speed upstream data channels. The control station (8) broadcasts data to all the tributary devices (20, 16, 18) and selects a channel for a specific tributary device (20, 16, 18) to respond to a poll. After polling, the tributary device (20, 16, 18) changes the tributary device transmitter (42) to the frequency of the selected channel. The tributary device (20, 16, 18) either sends data to send to the control station (8) or sends a negative acknowledge to the control station (8). If a negative acknowledgment was transmitted, the control station (8) notifies the control station transmitter that the channel is idle.

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