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US 9,426,841 B2Granted
Communication device session support between multiple access systems
AssigneeNokia Technoloiges Oy
InventorsMarkku Ala-Vannesluoma, Mika Joutsenvirta
Life of this patent
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Abstract
The disclosure relates to accessing a communication system. In accordance with the disclosed method a communication device communicating in a first access system based on an address is transferred to a second access system. The communication device sends an indication that the same address is to be used in the second access system, where after, if proxy mobility is available for the address, the same address is used for communications in the second access system.
Claims24
A method, comprising:
- communicating between a communication device and a first access system using a given address;
- initiating transfer of the communication device to a second access system;
- sending from the communication device an attach message parameter in an attach procedure to a gateway entity associated with the second access system to initiate the transfer, wherein the attach procedure is using an IKEv2 configuration payload message with the attach message parameter indicating that the given address is to be used in the second access system;
- and
- based on proxy mobility functionality being available for the given address at the gateway entity associated with the second access system, being assigned by the second access system a same address as the given address to perform the communication in the second access system, wherein the first access system comprises a third generation (3G) access system and the second access system comprises a non-3G access system or vice versa.
2 more elements
A non-transitory carrier medium including a computer program product comprising a set of instructions, the instructions executed by a processor in a node of a communication system to cause the node to perform operations comprising:
- using by a communication device a given address for a session provided by a first access system,
- sending an attach message parameter in an attach procedure to a gateway entity associated with a second access system to initiate a transfer of the communication device to the second access system, wherein the attach procedure is using an IKEv2 configuration payload message with the attach message parameter indicating that the given address is to be used by the mobile communication device in the second access system, and
- based on proxy mobility functionality being available for the given address at the gateway entity associated with the second access system, being assigned by the second access system a same address as the given address to continue the session in the second access system, wherein the first access system comprises a third generation (3G) access system and the second access system comprises a non-3G access system or vice versa.
An apparatus, comprising
- at least one processor;
- and
- at least one memory including computer program code, where the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to at least:
- use a given address in a first access system,
- send an attach message parameter in an attach procedure to a gateway entity associated with the second access system to initiate a transfer of the apparatus to the second access system, wherein the attach procedure is using an IKEv2 configuration payload message with the attach message parameter indicating that the given address is to be used in the second access system, and
- based on proxy mobility functionality for the given address at the gateway entity associated with the second access system, being assigned by the second access system a same address as the given address for communication in the second access system, wherein the first access system comprises a third generation (3G) access system and the second access system comprises a non-3G access system or vice versa.
3 more elements
An apparatus comprising:
- at least one processor;
- and
- at least one memory including computer program code, where the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to at least:
- receive an indication in an IKEv2 message that a given address is to be used in at least two different access systems;
- provide a communication device with information in an attach message in an attach procedure to a gateway entity of a different access network that enables a communication session with the communication device based on the given address of the communication device in the at least two different access systems when proxy mobility is provided a same address as the given address at a gateway entity associated with the at least two different access systems, wherein the at least two different access systems comprise a first access system associated with a third generation (3G) access system and a second access system associated with a non-3G access system.
2 more elements
Dependencies are inferred from the claim text.