A baton handover strategy which is applied to integrated services (voice/data) in TD-SCDMA mobile communication system is proposed.This strategy reserves channels for voice handover calls

defines different handover priorities according to voice user’s attribution

and gives voice handover calls and new voice calls preemptive priority over channels serving for data calls.Simulation results show that this strategy reduces blocking probabilities of VIP voice handover calls and high-speed handover calls by at least 50% when the system voice traffic is heavy.Furthermore

this strategy reduces the data call blocking probability and queue length while the system has heavy data traffic.Besides

data call transmission delay is decreased by nearly 0.01s.So it improves the overall system QoS.