基于速度触发的提前切换算法在LTE-R中的应用研究

米根锁; 马硕梅

doi:10.11999/JEIT150577

基于速度触发的提前切换算法在LTE-R中的应用研究

doi: 10.11999/JEIT150577

米根锁¹,
马硕梅¹

基金项目:

甘肃省自然科学基金(1310RJZA046)

计量
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- 被引次数: 0
出版历程
- 收稿日期: 2015-05-15
- 修回日期: 2015-08-28
- 刊出日期: 2015-12-19

Advance Trigger Handover Algorithm Based on the Speed in LTE-R

Mi Gen-suo¹,
Ma Shuo-mei¹

Funds:

The Natural Science Foundation of Gausu Province (1310RJZA046)

摘要

摘要: 随着高铁的快速发展，铁路移动通信系统对切换时延、切换成功率等要求更为苛刻。该文针对铁路长期演进(LTE-R)系统提出基于速度触发的提前切换算法，通过提前进行信令交互、设置切换预承载点切换的方式抑制过早或过迟切换所带来的通信中断、掉话等问题。通过信令流程图进行理论分析，并对长期演进(LTE)各结构类型数据计算可知，该算法均可缩短切换时延，其中TDD帧结构类型2时效果最为显著。最后通过仿真对比得到提前切换算法相比传统切换算法有着更高且更稳定的切换成功率，验证算法的有效性，为LTE-R在未来铁路专网的应用提供技术支持。
- 铁路长期演进 /
- 越区切换 /
- 切换时延 /
- 切换成功率
Abstract: With the rapid development of high-speed railway, the railway mobile communication system has more demands on the handover delay and handover success rate. This paper proposes an advance trigger handover algorithm based on the speed in LTE-R. It is designed to suppress communication interruption and dropped calls caused by that the signaling interaction and setting pre-bearer switching point get rise to handover too early or too late. The theoretical analysis is established in the signaling flow chart, and it is shown that the advance handover algorithm can shorten the handoff latency, which TDD frame structure type two has the most significant time effect. Finally, the simulation shows that compared with the conventional handover algorithm, the advance handover algorithm has a higher and more stable handover success rate. It provides a technical support for the future railway private network applications to LTE-R.
- Long Term Evolution-Railway (LTE-R) /
- Handover /
- Handoff latency /
- Handover success rate

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参考文献(28)

庞萌萌. 高速铁路GSM-R网络越区切换对CTCS-3系统的影响及模型分析[D]. [硕士论文], 北京交通大学, 2010.

Pang Meng-meng. Effect of GSM-R handover on CTCS-3 and model analysis in high-speed railway environment[D]. [Master dissertation], Beijing Jiao Tong University, 2010.

曹源, 马连川, 张玉琢. LTE-R与GSM-R的越区切换成功率比较[J]. 中国铁道科学, 2013, 34(6): 117-122.

Cao Yuan, Ma Lian-chuan, and Zhang Yu-zhuo. Comparison of handover success between rates between LTE-R and GSM-R[J]. China Railway Science, 2013, 34(6): 117-122.

贺臻帧. 基于LTE-R的高速移动宽带通信系统切换技术研究[D]. [硕士论文], 中南大学, 2013.

He Zhen-zhen. The research on handover technology under high-speed mobile communication system based on LTE-R[D]. [Master dissertation], Central South University, 2013.

吴端坡, 金心宇, 蒋路茸. 高速铁路网络环境下掉话率分析[J]. 浙江大学学报(工学版), 2015, 49(4): 705-710.

Wu Duan-po, Jin Xin-yu, and Jiang Lu-rong. Dropped-call probability in high speed railway environment[J]. Journal of Zhejiang University (Engineering Science), 2015, 49(4): 705-710.

朱晓荣, 罗小琴, 朱洪波. 正交频分多址系统中一种面向多业务应用的自适应资源分配算法[J]. 电子与信息学报, 2015, 37(6): 1298-1303.

Zhu Xiao-rong, Luo Xiao-qin, and Zhu Hong-bo. Adaptive res-ource allocation scheduling algorithm for multi-service applica- tion in OFDMA system[J]. Journal of Electronics Information Technology, 2015, 37(6): 1298-1303.

刘勤, 李红霞, 李钊. 基于认知的LTE系统动态频谱分配[J]. 电子与信息学报, 2015, 37(1): 175-181.

Liu Qin, Li Hong-xia, and Li Zhao. Dynamic spectrum alloc- ation for LTE systerm by Exploiting cognitive capability[J]. Journal of Electronics Information Technology, 2015, 37(1): 175-181.

黄妙娜, 冯穗力, 陈军. LTE网络中多目标优化的动态负载均衡算法[J]. 电子与信息学报, 2014, 36(9): 2152-2157.

Huang Miao-na, Feng Sui-li, and Chen Jun. Dynamic load balancing scheme for multi-objective optimization in LTE networks[J]. Journal of Electronics Information Technology, 2014, 36(9): 2152-2157.

Piro G and Boggia G. Two-level downlink scheduling for real- time multimedia services in LTE networks[J]. IEEE Transactions on Multimedia, 2011, 13(5): 1052-1065.

Capozzi F and Grieco L A. Downlink packet scheduling in LTE cellular networks: key design issues and a survey[J]. IEEE Communications Surveys Tutorials, 2013, 17(2): 678-700.

赵治. LTE系统原理及应用[M]. 北京: 电子工业出版社, 2012: 57-194.

Zhao Zhi. The Principle and Application of LTE System[M]. Beijing: Publishing House of Electronics Industry, 2012: 57-194.

孟繁丽, 张新程, 胡恒杰. LTE系统时延分析[J]. 邮电设计技术, 2009, 24(3): 37-41.

Meng Fan-li, Zhang Xin-cheng, and Hu Heng-jie. LTE system time delay analysis[J]. Design Technology of Posts and Telecommunications, 2009, 24(3): 37-41.

吴昊, 谷勇浩, 钟章队. 一种应用于高速铁路的快速切换算法研究[J]. 铁道工程学报, 2009, 37(1): 92-96.

Wu Hao, Gu Yong-hao, and Zhong Zhang-dui. Research on the fast algorithm for GSM-R switching for high-speed railway[J]. Journal of Railway Enginering Society, 2009, 37(1): 92-96.

邸成, 方旭明, 杨崇哲. 一种基于车载双天线的GSM-R冗余网络无缝切换方案[J]. 铁道学报, 2012, 34(6): 51-56.

Di Cheng, Fang Xu-ming, and Yang Chong-zhe. On-board dual-antenna seamless handover scheme in GSM-R redundant network[J]. Journal of the China Railway Society, 2012, 34(6): 51-56.

原燕斌. 高速铁路环境下LTE切换技术的研究[D]. [硕士论文],北京邮电大学, 2012.

Yuan Yan-bin. Research on high-speed railway environment LTE handover technology[D]. [Master dissertation], Beijing University of Posts and Telecommunications, 2012.

栾林林. 支持高速切换的TD-LTE信令的设计及其优化的研究[D]. [博士论文], 北京邮电大学, 2013.

Luan Lin-lin. Research on designing and optimization of signaling of TD-LTE based in high-speed handover[D]. [Ph.D. dissertation], Beijing University of Posts and Telecommunications, 2012.

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