Method of providing fast downlink service in a hard handover in a cellular communication system

摘要

A method quickly resuming a downlink service in a hard handover in a cellular mobile communication system. To provide the fast downlink service to an MS (Mobile Station) during a hard handover from an OBS (Old Base Station) to an NBS (New Base Station), the NBS receives handover user information from the OBS, and generates an MS temporary ID using the handover user information to identify the MS. If user data is generated for the MS before a connection is established for traffic transmission between the MS and the NBS, the NBS transmits the user data to the MS on an HCCH (Handover Common Channel) using the MS temporary ID.