A baton handover strategy based on channel reservation and preemptive priority

作者：Tang Liang Rui^*; Yang An Kun; Yang Xue

来源：Acta Electronica Sinica, 2011, 39(6): 1285-1290.

• Baton handover
• Channel reservations
• Data call
• Data traffic
• Handover
• High-speed handover
• Integrated service
• Preemptive priority
• Queue lengths
• Simulation result
• TD-SCDMA
• Transmission delays
• Voice calls
• Voice traffic
• Voice users

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 0.01 s. So it improves the overall system QoS.

• 出版日期2011
• 单位华北电力大学