Service mobility and recovery in communication networks
First Claim
Patent Images
1. A method of mobility and service recovery for a user in a wireless communication network, said method comprising:
- storing service information concerning the user in a registrar, said service information being information which allows the user to continue their ongoing communication services at a new or recovered user terminal;
sending a subscription message from the new or recovered user terminal to the registrar, a header in the subscription message containing a unique indication of a particular user; and
in response to said subscription message containing a unique indication in a header, returning a notification message to the new or recovered user terminal, the payload of said notification message including said service information which allows the user to continue at least some of their ongoing communication services at the new or recovered user terminal.
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Abstract
A method improves mobility and service recovery for a user in a wireless communication network. Service information concerning the user is stored in a registrar. A subscription message is sent from a user terminal to the registrar. A header in the subscription message contains a unique indication. In response to the subscription message containing a unique indication in a header, the registrar returns a notification message to the user terminal. The payload of the notification message includes service information for the user to be used by the user terminal for communication services.
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Citations
32 Claims
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1. A method of mobility and service recovery for a user in a wireless communication network, said method comprising:
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storing service information concerning the user in a registrar, said service information being information which allows the user to continue their ongoing communication services at a new or recovered user terminal; sending a subscription message from the new or recovered user terminal to the registrar, a header in the subscription message containing a unique indication of a particular user; and
in response to said subscription message containing a unique indication in a header, returning a notification message to the new or recovered user terminal, the payload of said notification message including said service information which allows the user to continue at least some of their ongoing communication services at the new or recovered user terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A network architecture, comprising:
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a plurality of user terminals; a radio access network, said radio access network containing elements providing information indicating the presence, status and/or location of said plurality of user terminals; a presence server, said presence server adapted to receive said information indicating the presence, status and/or location of said plurality of user terminals; at least one communication service provider providing a plurality of communication services; and a proxy server, said proxy server adapted to provide said plurality of communication services to said plurality of user terminals upon subscription thereto, wherein the proxy server stores and maintains service information which is related to said plurality of communication services and allows a user to continue their ongoing communication services at a new or recovered user terminal, and which provides said service information in a single message sent in response to a request therefore from a new or recovered user terminal, and wherein when said proxy server receives said request from a new or recovered user terminal, said proxy server resubscribes the user to ongoing subscriptions for which service information is stored therein. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A proxy server, said proxy server being adapted to:
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provide a plurality of communication services to a plurality of user terminals upon subscription of said user terminals to said communication services; store and maintain service information which is related to said plurality of communication services and allows a user to continue their ongoing communication services at a new or recovered user terminal; provide said service information in a single message sent in response to a request therefore from a new or recovered user terminal; and when said proxy server receives said request from of said new or recovered user terminal, the proxy server re-subscribes the user to ongoing subscriptions for which service information is stored therein. - View Dependent Claims (25, 26, 27)
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28. A mobile terminal, said mobile terminal being adapted to:
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receive a plurality of communication services; send a subscription message to a registrar, a header in the subscription message containing a unique identification of a particular user; receive a notification message sent from said registrar in response to said subscription message, the payload of said notification message including service information which allows said particular user to continue to receive a plurality of their communication services at said mobile terminal; and using said service information included in the payload of said notification message to continue said plurality of communication services at said mobile terminal. - View Dependent Claims (29, 30, 31, 32)
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Specification