Mobile communications
DC CAFCFirst Claim
Patent Images
1. A user terminal, comprising:
- a wireless interface (11,
12);
a formatting device (13) for applying a low level signal format protocol to a signal for transmission over said wireless interface; and
a control unit for selectively applying a plurality of alternative high level signalling protocols to said signal via said lower level protocols.
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Litigations
1 Petition
Accused Products
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.
285 Citations
25 Claims
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1. A user terminal, comprising:
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a wireless interface (11,
12);a formatting device (13) for applying a low level signal format protocol to a signal for transmission over said wireless interface; and a control unit for selectively applying a plurality of alternative high level signalling protocols to said signal via said lower level protocols. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A communications system for communication with a terminal (10) comprising:
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at least one user terminal comprised of a wireless interface (11,
12);
a formatting device (13) for applying a low level signal format protocol to a signal for transmission over said wireless interface; and
a control unit for selectively applying a plurality of alternative high level signalling protocols to said signal via said lower level protocols; andat least one wireless access network (20a-20c) arranged to communicate with said at least one terminal (10) using a low level signalling protocol, said wireless access network (20b) being connected to a plurality of wired networks (30a-30c) arranged to carry data using respective, mutually incompatible, higher level protocols, said wireless access network (20b) comprising, for each said wired network (30a, 30b), a respective protocol interface (23a, 23b) for translating between said higher and lower level protocols. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A user terminal, comprising:
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a wireless interface (11,
12);a formatting device (13) for applying a low level signal format protocol to a signal for transmission over said wireless interface; and a control unit for receiving a type signal (102) from said wireless interface, and for applying a high level protocol for application to said signal based on said type signal. - View Dependent Claims (21, 22)
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23. A method of wireless communication between a mobile terminal station (10) and a remote terminal via a radio access network (20) employing low level signalling protocols and a backbone network (30) employing high level signalling protocols, in which the radio access network (20b) is coupled to a plurality of incompatible backbone networks (30a, 30b), the method comprising steps of:
- providing a plurality of high level protocols at the mobile terminal station (10), selecting one of said plurality of backbone networks (30a, 30b), and, at said mobile terminal (10), selecting a corresponding protocol for use at said mobile terminal (10).
- View Dependent Claims (24)
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25. A method of wireless communication between a mobile terminal station (10) and a remote terminal via a radio access network (20) employing low level signalling protocols and a backbone network (30) employing high level signalling protocols, in which the radio access network (20b) is coupled to a plurality of incompatible backbone networks (30a, 30b), the method comprising steps of:
- receiving a type signal (102); and
applying a high level protocol for application based on said type signal.
- receiving a type signal (102); and
Specification