| 摘要 |
The present invention provides a method for implementing a location update that includes: receiving a routing area update request message which includes a mixed location update indication and a routing area identification (RAI) and is sent by a serving radio network subsystem (SRNS); performing, at least according to the RAI, a routing area update; at least according to the routing area update request message, obtaining a location area identification (LAI) and an address of a visitor location register (VLR) which are of a 2G network system where a mobile terminal is located; and sending the location area update request message, which carries at least the mixed location update indication and the LAI, to the VLR corresponding to the address of the VLR such that the VLR corresponding to the address of the VLR implements a location area update, at least according to the location area update request message.
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