Network switching method and mobile management entity

摘要: The invention provides a network switching method and mobile management entity. objective of the is to solve problem waste large quantity resources by parameter integration message forwarding elements in establishment data channels prior art. includes following steps that: before UE performs switching, source MME (mobile entity) sends resource allocation request target base station so as make allocate for UE; receives response from station, wherein contains an HSGW address allocated generic routing encapsulation key (HSGWGRE Key); PDN service gateway (SGW), carries HSGWGRE Key.