US 9,301,333 B2 · Method and apparatus for releasing connection with local GW when UE moves out of the residential/enterprise network coverage

Abstract

A method, system and device are provided for managing LIPA and/or SIPTO connection releases when UE moves out of residential/enterprise network coverage in case service continuity is not supported for the LIPA/SIPTO PDN connection(s). To address problems caused by not providing service continuity for LIPA/SIPTO PDN connections, the PDN connection/PDP context created in the HeNB/HNB by the MME/SGSN includes context information related to the UE indicating whether such connection is a LIPA PDN connection PDN connection or not. In addition, each UE may be configured to reconnect or not reconnect to the PDN corresponding to a certain APN or service, depending on how the PDN connection was disconnected by the network.

Claims6

Dependent claims

A user equipment (UE) comprising:

a memory;
and
a processor coupled to the memory, the processor to, while the UE has at least one Packet Data Network (PDN) connection comprising local internet protocol access (LIPA) connectivity at a first cell having a first Closed Subscriber Group (CSG) identity:
perform a Circuit-Switched Fallback (CSFB) procedure without Packet Switched (PS) handover to move the UE to a second cell;
send a Non Access Stratum (NAS) message to resume Evolved Universal Terrestrial Radio Access Network (E-UTRAN) service from a third cell having a second CSG identity, where the third cell has no service continuity for the at least one PDN connection;
and
receive a DEACTIVATE EPS BEARER CONTEXT REQUEST message to release the at least one PDN connection responsive to the third cell having no service continuity for the at least one PDN connection.

4 more elements

Dependencies are inferred from the claim text.

Method and apparatus for releasing connection with local GW when UE moves out of the residential/enterprise network coverage

Life of this patent

Method and apparatus for releasing connection with local GW when UE moves out of the residential/enterprise network coverage

Life of this patent

Abstract

Claims6