A seamless voice call handover scheme for next generation cellular network

Authors:
Kyungmin Kim;Hyunduk Jung;Jaiyong Lee
Affiliations:
Department of Electrical & Electronic Engineering, Yonsei University, Seoul, Korea;Department of Electrical & Electronic Engineering, Yonsei University, Seoul, Korea;Department of Electrical & Electronic Engineering, Yonsei University, Seoul, Korea
Venue:
APCC'09 Proceedings of the 15th Asia-Pacific conference on Communications
Year:
2009

Citing 2
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Abstract

This paper proposes the world first complete voice call handover scheme between the 3G LTE and 3G CS systems. To achieve seamless handover, a powerful network entity called FW_MME is proposed. Features of the FW_MME contribute to reducing handover service interruption time; hence the resulting voice call handover performance is also improved. The evaluation result shows that the proposed FW_MME exclusively meets the strict service interruption time requirement which is smaller than 300 ms, whereas other conventional handover schemes spend more than twice large time in voice call handover.