Patent ID: 9661676
Date: 2017-05-23
CPC Classifications: H04W

Claim:
1. A method of operating a user equipment (UE) in a wireless communications network, the method comprising: sending, from the UE to a first network element, a first packet service session management request message indicating a request of a first session management service type for at least one of establishing a new packet data session or modifying an existing packet data session, the first packet service session management request message being sent towards a first access point name (APN); receiving, at the UE, an operation mode message; choosing, at the UE, an operation mode of the UE based on the operation mode message, the operation mode of the UE being a radio access technology (RAT) dependent operation mode or a RAT independent operation mode, receiving, at the UE, a rejection message, the rejection message indicating the request of the first session management service type has been rejected; starting a retry timer; and after receiving the rejection message, the retry operation including sending, from the UE, a second packet service session management request message of the first session management service type towards the first APN, the retry operation being prevented by the UE such that the retry operation is not performed by the UE until after at least one of,