Mobile voice over internet protocol operation
First Claim
1. A method of operating a mobile station, comprising:
- registering the mobile station with a first base station of a plurality of base stations provided within at least one radio network, wherein only some of the plurality of base stations support a Voice over Internet Protocol (VoIP) service;
deciding to register the mobile station with a second base station of the plurality of base stations;
determining at the mobile station that one of the first base station and the second base station has functionality to support VoIP and the other does not; and
sending a Routing Area Update Request message or Tracking Area Update Request message from the mobile station to the second base station in response to said determination regarding functionality to support VoIP.
2 Assignments
0 Petitions
Accused Products
Abstract
A mobile station is operated within at least one radio network having a plurality of base stations. Only some of the plurality of base stations support a Voice over Internet Protocol, VoIP, service. The mobile station is registered with a first base station of the plurality of base stations. The mobile station may be registered with a second base station. The mobile station determines that one of the first base station and the second base station has functionality to support VoIP and the other does not. A Routing Area Update Request message or Tracking Area Update Request message is sent from the mobile station to the second base station in response to determining support for VoIP.
21 Citations
16 Claims
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1. A method of operating a mobile station, comprising:
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registering the mobile station with a first base station of a plurality of base stations provided within at least one radio network, wherein only some of the plurality of base stations support a Voice over Internet Protocol (VoIP) service; deciding to register the mobile station with a second base station of the plurality of base stations; determining at the mobile station that one of the first base station and the second base station has functionality to support VoIP and the other does not; and sending a Routing Area Update Request message or Tracking Area Update Request message from the mobile station to the second base station in response to said determination regarding functionality to support VoIP. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of operating a radio network, comprising:
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operating a mobile station by registering the mobile station with a first base station of a plurality of base stations provided within the radio network, deciding to register the mobile station with a second base station of the plurality of base stations, determining at the mobile station that one of the first base station and the second base station has functionality to support Voice over Internet Protocol (VoIP) and the other does not, and sending a Routing Area Update Request message or Tracking Area Update Request message from the mobile station to the second base station in response to said determination regarding functionality to support VoIP; receiving the Routing Area Update Request message or Tracking Area Update Request message sent by the mobile station at a Serving GPRS Support Node, SGSN, or Mobility Management Entity, MME, of the radio network; communicating from the SGSN or MME to a Gateway GPRS Support Node, GGSN, or Serving-Gateway, S-GW and Packet Data Network-Gateway, P-GW, a message to update the Packet Data Protocol, PDP, context in response to the received Routing Area Update Request message or Tracking Area Update Request message; communicating an acknowledgment message from the GGSN or S-GW and P-GW to the SGSN or MME in response to the message to update the PDP context; and communicating a Routing Area Update Accept message or Tracking Area Update Accept message from the SGSN or MME to the mobile station. - View Dependent Claims (10)
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11. A mobile station, comprising:
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a transceiver arranged to communicate with at least one radio network having a plurality of base stations, wherein only some of the plurality of base stations support a Voice over Internet Protocol (VoIP) service; and a processor configured to control the transceiver to register the mobile station with a first base station from the plurality of base stations, to decide to register the mobile station with a second base station, to determine that one of the first base station and the second base station has functionality to support VoIP and the other does not and to control the transceiver to send a Routing Area Update Request message or Tracking Area Update Request message to the second base station in response to said determination regarding functionality to support VoIP. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification