System and method for transmitting/receiving automatic repeat request reset information in a communication system

The present invention in a communication system, the mobile terminal is handed over to a target base station and the target base station upon the detection of the handover of the mobile terminal automatic repeat request to the MS (ARQ: Automatic Repeat reQuest) of ARQ reset information related to reset transmitting the information, the mobile terminal receives the ARQ reset information. Handover, the network re-entry, a handover process optimization (Handover Process Optimization) field, RNG-RSP message, ARQ reset