Invention Grant
- Patent Title: Method and apparatus for releasing connection with local GW when UE moves out of the residential/enterprise network coverage
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Application No.: US15930576Application Date: 2020-05-13
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Publication No.: US11350334B2Publication Date: 2022-05-31
- Inventor: Chen Ho Chin , Noun Choi , Stefano Faccin
- Applicant: BlackBerry Limited
- Applicant Address: CA Waterloo
- Assignee: BlackBerry Limited
- Current Assignee: BlackBerry Limited
- Current Assignee Address: CA Waterloo
- Agency: Trop, Pruner & Hu, P.C.
- Main IPC: H04W36/32
- IPC: H04W36/32 ; H04W36/00 ; H04W48/08 ; H04W76/30 ; H04L29/12 ; H04W8/04 ; H04W36/38 ; H04W64/00 ; H04W74/00 ; H04L61/5007 ; H04W8/08 ; H04W84/04 ; H04W88/02 ; H04W88/16

Abstract:
In some examples, a user equipment (UE) obtains a connectivity in a first cell, the connectivity identified by an access point name (APN), where the APN corresponds to a first type of connection, and where the first type of connection provides access to services in a local data network. The UE camps on a second cell, determines if the connectivity is not supported in the second cell based on broadcast information from the second cell, the broadcast information comprising information of the second cell, and in response to determining that the connectivity is not supported in the second cell, disconnect the connectivity, wherein the disconnecting comprises sending a Non Access Stratum (NAS) message via the second cell.
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