METHOD, SYSTEM AND BASE STATION SUBSYSTEM FOR REALIZING HANDOVER IN LOCAL SWITCH

摘要

The present invention provides a method for implementing a handover in a local switch, and the method comprises: when one party Mobile Station of a call implementing a local switch mode performs a Base Station Subsystem handover, the Base Station Subsystem handover transmits uplink speech data of the Mobile Station which does not need to perform the handover on a local switch link of the Base Station Subsystem and a link between the Base Station Subsystem and a Media Gateway simultaneously. A Base Station Subsystem implementing a handover in a local switch is also provided by the present invention. The present invention can efficiently avoid the speech loss of the Mobile Station performing the handover during the handover, and guarantees that the Mobile Station which needs to perform the handover can receive the speech data of the other party user no matter the Mobile Station is in the original BSS or the target BSS, thus maintaining the call between the two Mobile Stations efficiently.