Licensed assisted access: Key enabling functionalities and initial results

Apostolos Galanopoulos, Theodoros Tsiftsis, Fotis Foukalas

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

1 Citation (Scopus)

Abstract

The exploitation of unlicensed bands is now becoming a reality into the LTE-A system through the Licensed Assisted Access (LAA) working item, which was recently provided by 3GPP. This paper presents a first implementation of the key functionalities required in order to provide LAA. Our focus is on the carrier aggregation (CA) of the Unlicensed Band (UB) at 5 GHz with LTE-A bands, and since LTE-A is dominating external neighboring transmissions, particular functionalities have been proposed by 3GPP. Key functionalities are considered such as listen-before-talk (LBT), discontinuous transmission (DTX) and transmit power control. In this work, LBT and DTX for efficient carrier selection procedure are implemented. Our implementation is carried out on a LTE simulation platform and the initial results obtained, highlight new challenges for our future investigation on this topic.

Original languageEnglish
Title of host publication2015 12th International Symposium on Wireless Communication Systems, ISWCS 2015 - Proceedings
PublisherVDE Verlag GmbH
Pages171-175
Number of pages5
Volume2016-April
ISBN (Electronic)9781467365406
DOIs
Publication statusPublished - Apr 15 2015
Event12th International Symposium on Wireless Communication Systems, ISWCS 2015 - Brussels, Belgium
Duration: Aug 25 2015Aug 28 2015

Other

Other12th International Symposium on Wireless Communication Systems, ISWCS 2015
CountryBelgium
CityBrussels
Period8/25/158/28/15

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Keywords

  • Carrier aggregation
  • Carrier selection
  • Discontinuous transmission
  • Licensed assisted access
  • Listen before talk
  • LTE-A

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Communication

Cite this

Galanopoulos, A., Tsiftsis, T., & Foukalas, F. (2015). Licensed assisted access: Key enabling functionalities and initial results. In 2015 12th International Symposium on Wireless Communication Systems, ISWCS 2015 - Proceedings (Vol. 2016-April, pp. 171-175). [7454322] VDE Verlag GmbH. https://doi.org/10.1109/ISWCS.2015.7454322