Network service continuity without session continuity
AssigneeConvida Wireless, LLC
InventorsHongkun Li, Michael F. Starsinic, Rocco Di Girolamo, Catalina Mihaela Mladin
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Abstract
A Service Continuity Network Function (SCNF) may be used to provide service continuity support in IoT networks such as 3 GPP and oneM2M, whereby higher layer session and service information is associated with transport layer session information. By means of the SCNF, a higher layer service may be resumed when a new session or connection is created, without support for transport layer session continuity. The service continuity capabilities of the SCNF may be exposed to the service layer of the network by way of a resource data structure.
Claims9
A first apparatus comprising a processor, a memory, and communication circuitry, the first apparatus being connected to a communications network via its communication circuitry, the first apparatus further comprising computer-executable instructions stored in the memory of the first apparatus which, when executed byte processor of the first apparatus, cause the first apparatus to:
- receive a service continuity request comprising an identifier of a first Protocol Data Unit, PDU, session of a second apparatus and information associated with a higher layer service that uses the first PDU session, wherein the first PDU session is established between the second apparatus and a first Internet protocol, IP, anchor;
- associate the first PDU session of the second apparatus with the information associated with the higher layer service in accordance with the service continuity request;
- and
- receive from a third apparatus a request for higher layer session information associated with the identifier of the first PDU session;
- provide the higher layer session information to the third apparatus to establish a second PDU session on behalf of the second apparatus for the second apparatus to resume the higher level service, the second PDU session being established between the second apparatus and a second IP anchor;
- and
- associate, in response to a notification from a Session Management Network Function, SM NF, the higher level service with the second PDU session.
A method performed by a first apparatus in a network, the method comprising:
- receiving a service continuity request, the service continuity request comprising an identifier of a first session of a second apparatus and an identifier of a higher layer service, the first session being a Protocol Data Unit, PDU, session established between the second apparatus and a first Internet Protocol, IP anchor;
- associating the first session of the second apparatus with the higher layer service in accordance with the service continuity request;
- receiving from a third apparatus a request for higher layer session information associated with the identifier of the first PDU session;
- providing the higher layer session information to the third apparatus to establish a second session on behalf of the second apparatus for the second apparatus to resume the higher level service, the second session being a PDU session established between the second apparatus and a second, IP anchor;
- associating, in response to a notification from a Session Management Network Function, SM NF, the higher level service with the second session.
Dependencies are inferred from the claim text.