Data framing system for time division multiplexing transmission

Details Data framing system for time division multiplexing transmission Data framing system for time division multiplexing transmission

1987-01-02

1988-09-20

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 85, H04J 314, H04J 116

Patent

active

047730650

ABSTRACT:
A central station and a plurality of local stations are coupled through a signal transmission path. Data signals addressed to local stations, to which terminal devices such as telephone sets are coupled, are transmitted over the signal transmission path on a time-division multiplexing basis. Each local station sends the data signal onto the signal transmission path at a timing depending on a measured transmission delay time of a signal on the signal transmission path between itself and the central station. One transmission frame consists of subframes of data signals addressed to the local stations and a window frame for transmission delay time measurement. A maximum network length depends on the time duration of the window frame. In order to extend the time duration of the window frame and to increase the maximum network length, data signals for the same terminal device coupled to a local station are multiplexed in one time slot of a subframe.

REFERENCES:
patent: 4271505 (1981-06-01), Menot et al.
patent: 4445214 (1984-04-01), Reynolds et al.
patent: 4594705 (1986-06-01), Yahata et al.
patent: 4630264 (1986-12-01), Wah et al.
patent: 4667613 (1987-06-01), Salmond et al.
patent: 4694453 (1987-09-01), Kobayashi et al.
Digest of Paper 82, 24th IEEE Computer Society International Conference, "CableNet: A Local Area Network Reservation Scheme", Kong et al., Feb. 22-25, 1982.

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