Patent ID: 9642054
Date: 2017-05-02
CPC Classifications: H04W

Claim:
1. A method of wireless handoff of a user equipment (UE) from a source base station to a target base station, the method comprising: detecting a radio link failure (RLF) between the UE and the source base station by the UE, the RLF interrupting a communication service between the UE and a third party at a protocol layer of the UE; sending, after detecting the RLF, a connection request message to the target base station to initiate the handoff, the connection request message including an indication that the UE is transitioning from an active state to a service re-establishment sub-state, the service re-establishment sub-state allowing the communication service to remain continuously active during the handoff; and maintaining the communication service between the UE and the third party at a service layer of the UE as the UE is handed off from the source base station to the target base station.