A Baton Handover Strategy Based on Channel Reservation and Preemptive Priority

TANG Liang-rui; YANG An-kun; YANG Xue

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A Baton Handover Strategy Based on Channel Reservation and Preemptive Priority

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- A Baton Handover Strategy Based on Channel Reservation and Preemptive Priority
- Acta Electronica Sinica Vol. 39, Issue 6, Pages: 1285-1290(2011)
- 作者机构：
  
  1. 华北电力大学电气与电子工程学院,北京,102206
  2. 山东电力工程咨询院有限公司,山东,济南,250013
  3. 华北电力大学电气与电子工程学院北京,102206
  4. 山东电力工程咨询院有限公司山东济南,250013
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN92.53
- Published：2011
- 稿件说明：
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TANG Liang-rui, YANG An-kun, YANG Xue. A Baton Handover Strategy Based on Channel Reservation and Preemptive Priority[J]. Acta Electronica Sinica, 2011, 39(6): 1285-1290.
DOI：

TANG Liang-rui, YANG An-kun, YANG Xue. A Baton Handover Strategy Based on Channel Reservation and Preemptive Priority[J]. Acta Electronica Sinica, 2011, 39(6): 1285-1290. DOI：

摘要

提出了一种适用于TD-SCDMA(Time Division Synchronous Code Division Multiple Access)移动通信系统综合业务(语音/数据)的接力切换策略.该策略为语音切换预留信道

根据语音用户属性设置不同切换优先级

赋予语音切换和语音新呼叫对数据服务信道的强占优先权.仿真表明

当系统语音呼叫强度较大时

该策略使高优先级的VIP、高速语音切换阻塞率减小了至少50%;当系统数据呼叫强度较大时

该策略降低了数据呼叫阻塞率和排队队长

并使传输时延减小了近0.01s

整体上提高了系统的QoS (Quality of Service).

Abstract

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.

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