Data communication using network DCE and modified channel associ

Details Data communication using network DCE and modified channel associ Data communication using network DCE and modified channel associ

1997-07-17

1999-11-30

Kizou, Hassan

Multiplex communications

Communication over free space

Using atm as a wireles protocol

370360, H04B 700, H04H 110, H04L 522

Patent

active

059954949

ABSTRACT:
In a data communication system, the controller of a mobile switching center is initially responsive to a request message from a mobile user for supplying a single-bit setup message to an interworking unit via a signaling channel exclusively associated with a data channel. In response, the interworking unit activates an associated network DCE within the mobile switching center and returns a single-bit first response message to the controller. In response, the controller returns an ACK message to the mobile user to allow the data channel to be established between the mobile user and the local DCE. When the data channel is established, the interworking unit returns a single-bit second response message to the controller to allow the data channel to extend to a destination DCE and allow handshaking to proceed between the network DCE and the destination DCE via the interworking unit, using the network DCE as a local DCE of the mobile user.

REFERENCES:
patent: 4890303 (1989-12-01), Bader
patent: 5726764 (1998-03-01), Averbuch et al.
patent: 5784633 (1998-07-01), Petty
patent: 5790800 (1998-08-01), Gauvin et al.

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