Communication network location register and subscriber device
First Claim
1. A location register for a communication network in which is stored information relating to a first communication network and to at least one further communication network on which a subscriber device of a subscriber to the communication network is simultaneously registered, the location register being arranged such that the relative priority of at least one of the communication networks can be determined.
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Accused Products
Abstract
The present invention relates to a subscriber device that is capable of registering on more than one communication network simultaneously, and to a location register for a communication network for recording the networks on which the subscriber device is simultaneously registered. The subscriber device may be active on all registered networks, or only on one registered network. The location register may prioritise the list of network registrations. A method of maintaining the location register and of setting up a call to the subscriber device is also disclosed.
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Citations
24 Claims
- 1. A location register for a communication network in which is stored information relating to a first communication network and to at least one further communication network on which a subscriber device of a subscriber to the communication network is simultaneously registered, the location register being arranged such that the relative priority of at least one of the communication networks can be determined.
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7. A method of maintaining a location register for a subscriber device of a subscriber to a home communication network, comprising the steps of
receiving and storing information relating to registration of the subscriber device in a first communication network; - and
receiving and storing information relating to at least one further communication network on which the subscriber device is simultaneously registered wherein the information relating to the communication network is arranged such that the relative priority of at least one of the communication networks can be determined. - View Dependent Claims (8, 9, 10, 12)
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14. A method for a subscriber device registered on a first network comprising the steps
scanning for a second network; -
if a second network is detected, registering on the second network without de-registering from the first network; and
storing information relating to the second network registration in addition to information relating to the first network registration wherein the information relating to the network registrations is stored such a relative priority related to the or each active communication network can be determined. - View Dependent Claims (16, 17, 18)
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- 20. A subscriber device having means arranged to store information relating to a first and at least a second network on which the subscriber device is simultaneously registered wherein the information relating to the to a first and at least a second network is stored such that a relative priority related to the first and at least a second network can be determined.
Specification