Patent ID: 8504023
Filing Date: 2013-08-06
Classification: H04W

Abstract:
1. A method for wireless data flow, comprising: checking by a base station whether to activate a local Internet protocol access (LIPA) function for a user equipment (UE) after the user equipment transmits a packet data protocol (PDP) activation request signaling to the base station; informing a core network (CN) by the base station for authentication and signaling control if the base station determines that the UE is allowed to activate the LIPA function; if the base station allows a user plane data from the UE to be transmitted via the LIPA, assigning a private IP address by the base station to the UE for allowing the UE to access internet via the base station, the base station determining whether the user plane data transmitted from the UE passes through the CN or not; measuring an Internet service time provided to the UE by the CN; and periodically transmitting a data packet to the CN by the base station to maintain a signaling link between the base station and the CN if the base station allows all user plane data transmitted from the UE to be transmitted via the LIPA.