Micro mobility management for heterogeneous networks in LTE-A

Min Soo Woo, Seong Mun Kim, Seung Eun Hong, Sung-Gi Min

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Heterogeneous network, which consists of macro-cells and small cells, is actively researched in Long Term Evolution (LTE) area. The present handover procedure is not considered for the heterogeneous network environment. As the coverage of a small cell is limited, more frequent handovers occur. Therefore, workloads of a Mobility Management Entity (MME) and a Serving Gateway (SGW) increase. We propose the micro mobility management to reduce the workloads of the MME and the SGW. The proposed scheme introduces the mobility anchor, which handles handover between small cells without the participation of the MME and the SGW. The mobility anchor hides the change of the data path of a User Equipment (UE) from the SGW. Also, the MME can receive the notification of the change of the control path for maintenance of the Non Access Stratum (NAS) channel between the MME and the UE. The MME no longer relays the data path control signal to the SGW. The simulation result shows the reduction of the handover latency due to the simplified handover procedure.

Original languageEnglish
Title of host publication2015 38th International Conference on Telecommunications and Signal Processing, TSP 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages45-48
Number of pages4
ISBN (Print)9781479984985
DOIs
Publication statusPublished - 2015 Oct 9
Event2015 38th International Conference on Telecommunications and Signal Processing, TSP 2015 - Prague, Czech Republic
Duration: 2015 Jul 92015 Jul 11

Other

Other2015 38th International Conference on Telecommunications and Signal Processing, TSP 2015
CountryCzech Republic
CityPrague
Period15/7/915/7/11

Keywords

  • handover procedure
  • heterogeneous network
  • HetNet
  • LTE
  • LTE-A
  • mobility anchor

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing

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  • Cite this

    Woo, M. S., Kim, S. M., Hong, S. E., & Min, S-G. (2015). Micro mobility management for heterogeneous networks in LTE-A. In 2015 38th International Conference on Telecommunications and Signal Processing, TSP 2015 (pp. 45-48). [7296221] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/TSP.2015.7296221