Takamasa Ochiai, Kohei Matsueda, Takao Kondo, Hiroaki Takano, R. Kimura, R. Sawai, F. Teraoka
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MocLis: A Non-Tunneling Moving Cell Support Protocol Based on Locator/ID Split for 5G System
In the LTE/LTE-Advanced (LTE-A) system, user-plane for a user equipment (UE) is provided by tunneling which causes header overhead, processing overhead, and management overhead. In addition, the LTE-A system does not support moving cells which are composed of a mobile Relay Node (RN) and UEs attached to the mobile RN. There are several proposals for moving cells in the LTE-A system and the 5G system, however, all of them rely on tunneling for the user-plane, which means that none of them avoid the tunneling overheads. This paper proposes MocLis, a moving cell support protocol based on a Locator/ID split approach. MocLis does not use tunneling. Nested moving cells are supported. Signaling cost for handover of a moving cell is independent of the number of UEs and nested RNs in the moving cell. MocLis is implemented in Linux; user space daemons and modified kernel. The measurement results show that the attachment time and handover time are short enough for practical use. TCP throughput in MocLis is faster than that in the tunneling based approaches.
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