METHOD, CONTROLLER, AND GATEWAY FOR ENSURING SERVICE DATA CONTINUITY

摘要

A method, controller, and gateway for ensuring service data continuity, the method comprising: if the controller determines that the path/local gateway to which the terminal PDN is connected is not optimal, said controller querying a universal gateway whether or not there is data transmission; if the query result is that there is no data transmission, said controller alerting the MME to initiate a PDN connection reestablishment process.