Licensed-Assisted Access to Unlicensed Spectrum in LTE Release 13

Authors:
  • HKHwan-Joon Kwon
    Hwan-Joon Kwon
  • JJJeongho Jeon
    Jeongho Jeon
  • ABAbhijeet Bhorkar
    Abhijeet Bhorkar
  • QYQiaoyang Ye
    Qiaoyang Ye
  • HHHiroki Harada
    Hiroki Harada
  • YJYu Jiang
    Yu Jiang
  • LLLiu Liu
    Liu Liu
  • SNSatoshi Nagata
    Satoshi Nagata
  • BNBoon Loong Ng
    Boon Loong Ng
  • TNThomas Novlan
    Thomas Novlan
  • JOJinyoung Oh
    Jinyoung Oh
  • WYWang Yi
    Wang Yi
Publisher website
Google Scholar
Abstract
Exploiting the unlicensed spectrum is considered by 3GPP as one promising solution to meet ever-increasing traffic growth. As a result, one major enhancement for LTE in Release 13 has been to enable its operation in the unlicensed spectrum via licensed-assisted access (LAA). In this article, we provide an overview of the Release 13 LAA technology including motivation, use cases, LTE enhancements for enabling the unlicensed band operation, and the coexistence evaluation results contributed by 3GPP participants.