Deactivating elevated priority public data network connections in user equipment

摘要

A user equipment establishes an elevated priority data connection and one or more non-elevated priority data connections. The elevated priority data connection may be an emergency public data network (PDN) connection. The user equipment may determine that one or more deactivation criteria for the emergency PDN connection is satisfied while the emergency PDN connection and at least one non-emergency PDN connection of the user equipment are active. Deactivation criteria may include expiration of a Periodic Tracking Area Update timer. In response, the user equipment may locally deactivate the emergency PDN connection and send a deactivation indication to the operator network.

主权项

1. A method comprising:
in a user equipment: establishing a non-elevated priority cellular data connection; establishing an elevated priority cellular data connection; identifying a deactivation criterion for deactivating the elevated priority cellular data connection; obtaining a periodic timing value from the operator network; determining that the deactivation criterion is satisfied, the deactivation criterion comprising expiration of a timer maintained according to the periodic timing value; and when the elevated and non-elevated priority data connections are active upon determining the deactivation criterion is satisfied: locally deactivating, by user equipment, the elevated priority data connection including removing an indication of the elevated priority data connection from the user equipment.