Subscriber registrations in a mobile communication system
First Claim
Patent Images
1. A method, comprising:
- registering a user equipment with a control entity in a communication system, said control entity implemented as a serving call state control function;
sending a message from the communication system to the user equipment requesting that the user equipment re-register with said communication system, the sending is responsive to at least one of a plurality of specified conditions, the plurality of specified conditions comprising one or more of the following;
a current registration of the user equipment is set to expire in a predetermined time;
one or more error conditions in the communication system;
one or more error conditions in the control entity; and
the communication system mistrusts the user equipment; and
causing said user equipment to re-register with said communication system in response to said message wherein said user equipment is re-authenticated when said user equipment is re-registered,wherein re-registration of said user equipment is carried out without dropping existing sessions associated with the user equipment.
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Abstract
A method in a communication system wherein a user (1) is arranged to register with a control entity (22) comprises sending a message from the communication system to the user (1) requesting that the user re-register with said communication network. The user is caused to re-register with said network in response to said message.
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Citations
54 Claims
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1. A method, comprising:
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registering a user equipment with a control entity in a communication system, said control entity implemented as a serving call state control function; sending a message from the communication system to the user equipment requesting that the user equipment re-register with said communication system, the sending is responsive to at least one of a plurality of specified conditions, the plurality of specified conditions comprising one or more of the following; a current registration of the user equipment is set to expire in a predetermined time; one or more error conditions in the communication system; one or more error conditions in the control entity; and the communication system mistrusts the user equipment; and causing said user equipment to re-register with said communication system in response to said message wherein said user equipment is re-authenticated when said user equipment is re-registered, wherein re-registration of said user equipment is carried out without dropping existing sessions associated with the user equipment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method, comprising:
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authenticating a user equipment with a control entity in a communication system, said control entity implemented as a serving call state control function; sending a message from the communication system to the user equipment requesting that the user equipment initiate a procedure with said communication system, said procedure causing re-authentication of said user equipment, the sending is responsive to at least one of a plurality of specified conditions, the plurality of specified conditions comprising one or more of the following; a current registration of the user equipment is set to expire in a predetermined time; one or more error conditions in the communication system; one or more error conditions in the control entity; and the communication system mistrusts the user equipment; causing said user equipment to initiate said procedure in response to said message; and re-authenticating said user equipment, wherein said procedure is carried out without dropping existing sessions associated with the user equipment. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A system, comprising:
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a user equipment; and a control entity, said control entity implemented as a serving call state control function, wherein the user equipment is configured to be registered with the control entity, wherein said communication system is configured to send a message to the user equipment requesting that the user equipment re-register with said communication system, the message is sent in response to at least one of a plurality of specified conditions, the plurality of specified conditions comprising one or more of the following; a current registration of the user equipment is set to expire in a predetermined time; one or more error conditions in the communication system; one or more error conditions in the control entity; and the communication system mistrusts the user equipment wherein said user equipment is configured to re-register with said communication system in response to said message, wherein said user equipment is re-authenticated when said user equipment is re-registered, and wherein said communication system is configured to carry out re-registration of said user equipment without dropping existing sessions associated with the user equipment. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. An apparatus, comprising:
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a processor configured to register a user equipment with a control entity in a communication system, said control entity implemented as a serving call state control function; and a transmitter configured to send a message to the user equipment requesting that the user equipment re-register with the communication system, the message is sent in response to at least one of a plurality of specified conditions, the plurality of specified conditions comprising one or more of the following; a current registration of the user equipment is set to expire in a predetermined time; one or more error conditions in the communication system; one or more error conditions in the control entity; and the communication system mistrusts the user equipment, wherein the message is configured to trigger the user equipment to re-register with the communication system in response to the message, without requiring said user equipment to drop existing sessions associated with said user equipment. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41)
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30. An apparatus, comprising:
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registration means for registering a user equipment with a control entity in a communication system, said control entity implemented as a serving call state control function; and sender means for sending a message to the user equipment requesting that the user equipment re-register with the communication system, the message is sent in response to at least one of a plurality of specified conditions, the plurality of specified conditions comprising one or more of the following; a current registration of the user equipment is set to expire in a predetermined time; one or more error conditions in the communication system; one or more error conditions in the control entity; and the communication system mistrusts the user equipment, wherein the message is configured to trigger the user equipment to re-register with the communication system in response to the message, without requiring said user equipment to drop existing sessions associated with said user equipment.
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31. A method, comprising:
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receiving a message, at a user equipment in a communication system wherein the user equipment is configured to register with a control entity implemented as a serving call state control function, from the communication system requesting that the user equipment re-register with said communication network, the message is received in response to at least one of a plurality of specified conditions, the plurality of specified conditions comprising one or more of the following; a current registration of the user equipment is set to expire in a predetermined time; one or more error conditions in the communication system; one or more error conditions in the control entity; and the communication system mistrusts the user equipment; and causing said user equipment to re-register with said network in response to said message wherein said user equipment is re-authenticated when said user equipment is re-registered, wherein re-registration of said user equipment is carried out without dropping existing sessions associated with said user equipment.
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32. An apparatus, comprising:
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a processor of a user equipment configured to operate in a communication system, wherein said user equipment is configured to be registered with a control entity in operation, the control entity implemented as a serving call state control function; a receiver configured to receive a message from the communication network requesting that the user equipment re-register with said communication network, the message is received in response to at least one of a plurality of specified conditions, the plurality of specified conditions comprising one or more of the following; a current registration of the user equipment is set to expire in a predetermined time; one or more error conditions in the communication system; one or more error conditions in the control entity; and the communication system mistrusts the user equipment; wherein said processor is configured to re-register said user equipment with said network in response to said message, wherein said user equipment is re-authenticated when said user equipment is re-registered, and wherein said processor is configured to re-register the user equipment with the network without dropping existing sessions associated with the user equipment. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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52. A computer-readable medium encoded with instructions that, when executed on a computer, perform a process, the process comprising:
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registering a user equipment with a control entity in a communication system, the control entity implemented as a serving call state control function; sending a message from the communication system to the user equipment requesting that the user equipment re-register with said communication system, the sending is responsive to at least one of a plurality of specified conditions, the plurality of specified conditions comprising one or more of the following; a current registration of the user equipment is set to expire in a predetermined time; one or more error conditions in the communication system; one or more error conditions in the control entity; and the communication system mistrusts the user equipment; and causing said user equipment to re-register with said communication system in response to said message wherein said user equipment is re-authenticated when said user equipment is re-registered, wherein re-registration of said user equipment is carried out without dropping existing sessions associated with the user equipment.
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53. A computer-readable medium encoded with instructions that, when executed on a computer, perform a process, the process comprising:
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authenticating a user equipment with a control entity in a communication system, the control entity implemented as a serving call state control function; sending a message from the communication system to the user equipment requesting that the user equipment initiate a procedure with said communication system, said procedure causing re-authentication of said user equipment, the sending is responsive to at least one of a plurality of specified conditions, the plurality of specified conditions comprising one or more of the following; a current registration of the user equipment is set to expire in a predetermined time; one or more error conditions in the communication system; one or more error conditions in the control entity; and the communication system mistrusts the user equipment; causing said user equipment to initiate said procedure in response to said message; and re-authenticating said user equipment, wherein said procedure is carried out without dropping existing sessions associated with the user equipment.
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54. A computer-readable medium encoded with instructions that, when executed on a computer, perform a process, the process comprising:
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receiving a message, at a user equipment in a communication system wherein the user equipment is configured to register with a control entity implemented as a serving call state control function, from the communication system requesting that the user equipment re-register with said communication network, the message is received in response to at least one of a plurality of specified conditions, the plurality of specified conditions comprising one or more of the following; a current registration of the user equipment is set to expire in a predetermined time; one or more error conditions in the communication system; one or more error conditions in the control entity; and the communication system mistrusts the user equipment; and causing said user equipment to re-register with said network in response to said message wherein said user equipment is re-authenticated when said user equipment is re-registered, wherein re-registration of said user equipment is carried out without dropping existing sessions associated with said user equipment.
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Specification