Enhanced call delivery system for interoperability between circuit switched and packet switched networks
First Claim
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1. A method for completing a telephone call in a wireless telecommunications network, comprising:
- providing a packet-switched network having one or more available wireless links;
camping a wireless mobile terminal on at least one of the wireless links of the packet-switched network;
providing a circuit-switched network, having one or more available wireless links;
providing to the circuit-switched network from the packet-switched network location information representing the location within the packet-switched network on which the mobile terminal is camped;
originating a call to the wireless mobile terminal through the circuit-switched network; and
initiating network-side call setup with the mobile terminal through the circuit-switched network with reference to the location information received from the packet-switched network, wherein said network-side call setup is initiated independently of a page response from the mobile terminal.
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Abstract
The invention expedites the delivery of a call originating in a circuit-switched network to a mobile terminal camped on a packet-switched network. Information representing the location of the mobile terminal in the packet-switched network is provided to the circuit switched network. A call setup with the mobile terminal is initiated with reference to the previously received location information, frequently more expeditiously and using less resources. Location-based services are also provided by the circuit-switched network with access to such mobile terminal location information.
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Citations
23 Claims
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1. A method for completing a telephone call in a wireless telecommunications network, comprising:
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providing a packet-switched network having one or more available wireless links;
camping a wireless mobile terminal on at least one of the wireless links of the packet-switched network;
providing a circuit-switched network, having one or more available wireless links;
providing to the circuit-switched network from the packet-switched network location information representing the location within the packet-switched network on which the mobile terminal is camped;
originating a call to the wireless mobile terminal through the circuit-switched network; and
initiating network-side call setup with the mobile terminal through the circuit-switched network with reference to the location information received from the packet-switched network, wherein said network-side call setup is initiated independently of a page response from the mobile terminal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of reducing delay in initiation of a call to a mobile terminal in a wireless network comprising the steps of:
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camping a mobile terminal on a channel of a packet-switched network;
transmitting location information relative the mobile terminal to the packet-switched network;
communicating the location information to a circuit-switched network;
determining from the location information an MSC servicing a region in which the mobile terminal is likely to be located; and
setting up a call on the network side through the MSC to the mobile terminal, wherein the network-side call setup is initiated independently of a page response from the mobile terminal. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for completing a telephone call in a wireless telecommunications network, comprising:
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providing a packet-switched wireless network having at least one wireless link on which mobile terminals can camp;
providing a circuit-switched wireless network having at least one wireless link;
providing to the circuit-switched wireless network from the packet-switched wireless network information representing the physical location of each mobile terminal camped on the packet-switched wireless network in response to a request for such information from the circuit switched network;
originating a call to a given mobile terminal camped on the packet-switched wireless network through the circuit-switched wireless network; and
initiating network-side call setup with the given mobile terminal through the circuit-switched wireless network utilizing the location information received from the packet-switched wireless network for the given mobile terminal, wherein said network-side call setup is initiated independently of a page response from the given mobile terminal.
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Specification