Abstract
Two position-assisted fast handover schemes, scheme A and scheme B, for LTE-A system under very high mobility scenarios, are proposed, together with their performance evaluation. Scheme A is designed to reduce handover delay by making handover preparation before handover starts. Scheme B aims at reducing unnecessary handovers and improving handover success rate, by calculating the geographically best target handover cell, which makes it easier for mobile terminals to access the target cell. A system level simulation is conducted to evaluate the performance of these two schemes. It is shown that, scheme A could reduce inter-site handover delay by about 50 ms, while scheme B could cut down nearly 50% of all handovers when time-to-trigger (TTT) is 0 ms. Besides, as TTT gets larger, Scheme B has much better success rate.
Article PDF
Similar content being viewed by others
References
3GPP TS 36.133, 3rd Generation Partnership Project; technical specification group radio access networks; requirements for support of radio source management (Release 8).
[IMT.EVAL] Guidelines for evaluation of radio interface technologies for IMT-Advanced.
3GPP TS 36.300, V8.5.0, 3rd Generation Partnership Project; technical specification group radio access Network; evolved universal terrestrial radio access (E-UTRA) and evolved universal terrestrial radio access Network (E-UTRAN); overall description; Stage 2 (Release 8), 2008.
3GPP TS 36.355, V9.2.1, 3rd Generation Partnership Project; technical specification group radio access network; evolved universal terrestrial radio access (E-UTRA) and evolved universal terrestrial radio access network (E-UTRAN); LTE Positioning Protocol (Release 9), 2010.
3GPP TR 25.814, V7.1.0, 3rd Generation Partnership Project; technical specification group radio access Network; Physical layer aspects for evolved Universal Terrestrial Radio Access (UTRA) (Release 7), 2006.
C.C. Lin, Optimization of handover algorithm in 3GPP LTE, In: 4th International Conference on Modeling, Simulation and Applied Optimization, Kuala Lumpur, 2011: 1–5.
K. Kitagawa, T. Komine, A handover optimization algorithm with mobility robustness for LTE systems, In: International Symposium on Personal, Indoor and Mobile Radio Communications, Toronto, 2011: 1647–1651
L. Tian, Y.Q. Zhou, J. Li, et al., A novel handover scheme for seamless wireless connectivity in high-speed rail, In: IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications, Wuhan, 2011: 230–236.
W.T. Luo, X.M. Fang, M. Cheng, et al., An optimized handover trigger scheme in LTE systems for high-speed railway, In: The 5th International Workshop on Signal Design and its Application in Communications, Guilin, 2012: 193–196.
J. Li, L. Tian, Y.Q. Zhou, et al., An adaptive handover trigger scheme for wireless communications on high speed rail, In: IEEE International Conference on Communications, Ottawa, 2012: 5185–5189.
Q.W Wang, G.L. Ren, J. Tu, A soft handover algorithm for TD-LTE system in high-speed railway scenario, In: IEEE International Conference on Signal Processing, Communications and Computing, Xi’an, 2011: 1–4.
R2-092433, NTT DOCOMO, Evaluation model for Rel-8 mobility performance.
R2-093273, NTT DOCOMO, Evaluation of Rel-8 LTE mobility performance.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Fei, M., Fan, P. Position-assisted fast handover schemes for LTE-advanced network under high mobility scenarios. J. Mod. Transport. 20, 268–273 (2012). https://doi.org/10.1007/BF03325809
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF03325809