Method of releasing a connection between a mobile user terminal and a network
First Claim
1. A method of releasing a connection between a mobile user terminal and a first network if a report of presence has not been received from the mobile user terminal by the first network for a predetermined period, the predetermined period being selected to be shorter than otherwise upon the mobile user terminal being determined both as being capable of communicating also with another type of network for mobile telecommunications, and being in an area covered by a network of said another type such that handover to said network of said another type is possible.
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Accused Products
Abstract
A method of releasing a connection between a mobile user terminal 22 and a first network 9 if a report of presence has not been received from the mobile user terminal by the first network 9 for a predetermined period. The predetermined period being selected to be shorter than otherwise upon the mobile user terminal 22 being determined both as being capable of communicating also with another type of network 6 for mobile telecommunications, and being in an area covered by a network of said another type such that handover to said network 6 of said another type is possible.
30 Citations
16 Claims
- 1. A method of releasing a connection between a mobile user terminal and a first network if a report of presence has not been received from the mobile user terminal by the first network for a predetermined period, the predetermined period being selected to be shorter than otherwise upon the mobile user terminal being determined both as being capable of communicating also with another type of network for mobile telecommunications, and being in an area covered by a network of said another type such that handover to said network of said another type is possible.
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9. A system for mobile telecommunications comprising a first network and a network for mobile telecommunications of another type, the first network comprising:
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releasing means operative to release a connection with a mobile user terminal if a report of presence has not been received from the mobile user terminal by the first network for a predetermined period; and
selection means and determination means, the selection means being operative to select the predetermined period to be shorter than otherwise upon the mobile user terminal being determined by the determination means both as being capable of communicating also with another type of network for mobile telecommunications, and being in an area covered by a network of said another type such that handover to said network of said another type is possible. - View Dependent Claims (10, 11, 12, 13, 14)
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- 15. A Universal Mobile Telecommunications System (UMTS) network for mobile telecommunications comprising releasing means operative to release a connection with a mobile user terminal when a report of presence has not been received from the mobile user terminal by the network for a predetermined period, the network comprising selection means and determination means, the selection means being operative to select the predetermined period to be shorter than otherwise upon the mobile user terminal being determined by the determination means both as being capable of communicating also with another type of network for mobile telecommunications, and being in an area covered by a network of said another type such that handover to a network of said another type is possible.
Specification