Patent ID: 7860976
Filing Date: 2010-12-28
Classification: H04W

Abstract:
1. A method, comprising: receiving a session request from a user equipment, wherein the user equipment is permitted to initiate sessions of a first type or types, but not permitted to initiate sessions of a second type or types, the first type or types corresponding to an emergency session, and the second type or types not corresponding to the emergency session; starting a timer, set to a time interval, upon receiving the session request from the user equipment for a session of the first type or types; checking whether a bearer is active for the session of the first type or types within said time interval after receiving the session request, the bearer comprising a packet data protocol context; and detaching the user equipment from a network when detecting that there is no bearer active for the session of the first type or types within said time interval after the attachment, wherein the detaching the user equipment is requested via a server when detecting that the requested session is a session of the second type or types.