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Design Strategy for Measurement Scheduler in LTE Small Cell-Associated User Equipment

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Abstract

Small cell deployment using Home eNB improves the LTE/LTE Advanced network coverage and capacity providing its relay and data offloading functions. However, latency of inbound mobility to the small cell is a critical obstacle to the deployment because it spends much time detecting an associated small cell due to its sparse deployment and identifying the target small cell because of the delay caused by the verification procedure required before performing inbound handover to the target. Therefore, the inbound handover latency should be minimized to encourage the deployment of the Home eNB. To tackle the handover latency problem, this paper proposes a practically possible solution for design of Layer 1 search/measure scheduler in LTE small cell-associated user equipment. The proposed strategy especially enhances the performance of the LTE Home eNB discovery and guarantees to meet the requirements defined in the corresponding conformance test specifications. Performance evaluation by computer simulation shows that the proposed scheme provides a proper guideline on the Layer 1 software implementation.

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Abbreviations

CGI:

Cell Global Identifier

CSG:

Closed subscriber group

DRX:

Discontinuous reception

eNB:

Evolved Node B

HeNB:

Home evolved Node B

LTE:

Long Term Evolution

MIB:

Master Information Block

PCI:

Physical Cell Identifier

QoS:

Quality of service

RRC:

Radio Resource Control

SIB1:

System Information Block 1

UE:

User equipment

3GPP:

3rd Generation Partnership Project

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Acknowledgments

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (2013R1A1A1008098) and in part by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2009-0093828).

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Authors and Affiliations

  1. Division of Electronics and Info-Communication Engineering, Yeungjin College, Daegu, 702-721, Korea

    Jae-Wan Kim

  2. Division of Electronics Engineering, Mokpo National University, Youngsan-ro, Cheonggye-myeon, Muan-gun, Jeonnam, 1666, Korea

    Seong Ro Lee

  3. Division of Electrical and Electronics Engineering, Korea Maritime and Ocean University, #727 Taejong-Ro, Youngdo-Gu, Busan, 606-791, Korea

    Yang-Ick Joo

Authors
  1. Jae-Wan Kim
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  2. Seong Ro Lee
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  3. Yang-Ick Joo
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Correspondence to Yang-Ick Joo.

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Kim, JW., Lee, S.R. & Joo, YI. Design Strategy for Measurement Scheduler in LTE Small Cell-Associated User Equipment. Wireless Pers Commun 82, 2291–2300 (2015). https://doi.org/10.1007/s11277-015-2347-9

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  • DOI: https://doi.org/10.1007/s11277-015-2347-9

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