Wireless module and method for local IP access packet data network release

摘要

Various embodiments include systems, wireless modules, and methods for local IP access packet data network release. Handover data can be received at a target wireless module as part of a user equipment handover operation. The user equipment can include an active packet data network session associated with a source local home network. A determination that the target wireless module is not in the source local home network can be made based on the handover data. The target wireless module can trigger deactivation of the packet data network session in response to the determination that the target wireless module is not in the source local home network.

主权项

1. A circuit-implemented wireless module comprising:
receiver circuitry configured to receive handover data as part of a user equipment (UE) handover operation, the UE including an active packet data network (PDN) session associated with a source local home network (LHN), wherein the part of the UE handover operation is at least one of a handover preparation operation or a handover completion operation, the handover completion operation occurring after the handover preparation operation, the handover preparation operation being at least one of a handover operation, an X2 application protocol (X2AP) handover request, an S1 application protocol (S1AP) handover request, or a 3GPP universal mobile telecommunications system (UMTS) relocation request, the handover completion operation being at least one of X2AP message or an S1AP message, the handover operation including a UE LHN-ID for the UE and a local IP access (LIPA) bearer for the PDN session; and processor circuitry configured to:
determine that the wireless module is not in the source LHN based on the handover data, including determining that an LHN-ID of the wireless module is different than the UE LHN-ID; andtrigger deactivation of the PDN session in response to the determination that the wireless module is not in the source LHN, including omitting the LIPA bearer from an acknowledgment to the handover operation.