System supporting data/fax connection with a dual mode mobile te

Details System supporting data/fax connection with a dual mode mobile te System supporting data/fax connection with a dual mode mobile te

1998-08-26

2000-08-08

Bost, Dwayne D.

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

455553, 379 8813, 37910001, H04B 138

Patent

active

061013986

ABSTRACT:
An interface between a dual mode mobile station and a piece of data terminal equipment supports both a logical digital interface and a logical analog interface, with the analog interface passing through a modem. At set-up of either a mobile originated or mobile terminated data/fax call, a supporting dual mode communications network determines whether a digital traffic channel is available on an air interface. If so, the channel is allocated to the mobile station, and data/fax communication with the data terminal equipment occurs using the logical digital interface. Otherwise, an analog voice channel is allocated, and the data/fax communication with the data terminal equipment occurs using the logical analog interface and modem. Within the supporting network, data/fax communications via the digital traffic channel are routed through an interworking functionality that terminates a radio link protocol utilized for communicating over the digital air interface. Analog voice channel data/fax communications are instead routed through a modem pool that terminates a selected modem protocol utilized by the modem for communicating over the analog air interface.

REFERENCES:
patent: 5479480 (1995-12-01), Scott
patent: 5537458 (1996-07-01), Suomi et al.
patent: 5845210 (1998-12-01), Moon
patent: 5850391 (1998-12-01), Essigmann
patent: 5878078 (1999-03-01), Griffin et al.
patent: 5920825 (1999-07-01), Patel et al.
patent: 5930727 (1999-07-01), Henry, Jr.
PCT International Search Report, Jan. 14, 2000, PCT/SE 99/01345.

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