Apparatuses, systems, and methods for handling detachment procedures upon expiration of closed subscriber group (CSG) subscription

摘要

A mobile communication device with a wireless module and a controller module is provided. The mobile communication device is attached to a service network via a cellular station for a non-emergency service, wherein the cellular station is associated with a Closed Subscriber Group (CSG). The controller module determines whether an emergency service is ongoing and initiates a detachment request message of the non-emergency service to the service network via the cellular station, only when no emergency service is ongoing. The wireless module transmits the detachment request message to the service network via the cellular station.

主权项

1. A mobile communication device, comprising:
a wireless module, performing wireless transceiving to and from a cellular station of a service network, wherein the cellular station is associated with a Closed Subscriber Group (CSG); a controller module, configured with a membership of the CSG and attached to the service network, transmitting a detachment request message indicating detachment of only a Circuit Switch (CS) service to the cellular station via the wireless module, and deactivating only established resource for the CS service in response to receiving a detachment acceptance message corresponding to the detachment request message from the cellular station via the wireless module, wherein the detachment acceptance message is in response to the mobile communication device having an ongoing emergency Packet Switch (PS) service and not having the authorized membership of the CSG.