Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent
1997-12-23
1999-08-31
Chin, Wellington
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
455553, 370466, 370467, 370469, H04M 1100
Patent
active
059466340
ABSTRACT:
A mobile terminal (10) has multiple alternative protocol stacks (151, 152 . . .) which correspond to the protocols used on multiple backbone networks (30a-30c) to which the mobile terminal can obtain access through one or more radio access networks (20a-20c) with which it is in communication using a common, predetermined low level signalling protocol. The radio access network (20) broadcasts signals (102) indicating the types of backbone network to which it is connected (and thereby the protocols they employ), and on encountering a signal indicating a new type of backbone network, a mobile terminal 10 may download a new protocol stack from the radio access network.
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patent: 5732359 (1998-03-01), Baranowsky, II et al.
patent: 5732360 (1998-03-01), Jarett et al.
patent: 5761623 (1998-06-01), Lupien et al.
Bilgic, Murat, "A PCS Terminal Architecture To Access Multiple Networks", 1996 IEEE 46.sup.th Vehicular Technology Conf., Apr. 28, 1996, vol. 2, pp. 1160-1164.
"Telecommunications Engineers Reference Book" edited by Fraidoon Mazda, Butterworth Heinemann, 1993, Chapter 41, paragraphs 41.4.6-41.4.13.
Chin Wellington
Jama Isaak R.
Nokia Mobile Phones Limited
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