METHOD FOR PREVENTING A UE FROM ENTERING INTO A PERMANENT OUT OF SERVICE STATE

摘要

Methods and apparatuses are provided that prevent a user equipment (UE) from entering into a permanent out of service (OOS) state. The UE receives a registration reject message associated with a permanent cause when the UE triggers a registration request for registering with a first network entity. It is determined whether the UE was previously registered with a second network entity upon receiving the registration reject message associated with the permanent cause. The UE stores a network entity identifier of the first network entity in a temporary forbidden list when the UE was previously registered with the second network entity, to prevent the UE from entering into the permanent OOS state.

主权项

1. A method of preventing a user equipment (UE) from entering into a permanent out of service (OOS) state, the method comprising:
triggering a registration request for registering the UE with a first network entity; receiving, at the UE, a registration reject message associated with a permanent cause from the first network entity; determining whether the UE was previously registered with a second network entity upon receiving the registration reject message associated with the permanent cause; and storing, at the UE, a network entity identifier of the first network entity in a temporary forbidden list when the UE was previously registered with the second network entity, to prevent the UE from entering into the permanent OOS state, wherein the first network entity and the second network entity belong to the same country, and the UE is in communication with the first network entity and the second network entity.