Licensed assisted access: Key enabling functionalities and initial results

Apostolos Galanopoulos; Theodoros Tsiftsis; Fotis Foukalas

doi:10.1109/ISWCS.2015.7454322

Licensed assisted access: Key enabling functionalities and initial results

Apostolos Galanopoulos, Theodoros Tsiftsis, Fotis Foukalas

Department of Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (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 language	English
Title of host publication	2015 12th International Symposium on Wireless Communication Systems, ISWCS 2015 - Proceedings
Publisher	VDE Verlag GmbH
Pages	171-175
Number of pages	5
Volume	2016-April
ISBN (Electronic)	9781467365406
DOIs	https://doi.org/10.1109/ISWCS.2015.7454322
Publication status	Published - Apr 15 2015
Event	12th International Symposium on Wireless Communication Systems, ISWCS 2015 - Brussels, Belgium Duration: Aug 25 2015 → Aug 28 2015

Other

Other	12th International Symposium on Wireless Communication Systems, ISWCS 2015
Country	Belgium
City	Brussels
Period	8/25/15 → 8/28/15

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

Access to Document

10.1109/ISWCS.2015.7454322

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Licensed assisted access : Key enabling functionalities and initial results. / Galanopoulos, Apostolos; Tsiftsis, Theodoros; Foukalas, Fotis.

2015 12th International Symposium on Wireless Communication Systems, ISWCS 2015 - Proceedings. Vol. 2016-April VDE Verlag GmbH, 2015. p. 171-175 7454322.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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, 7454322, VDE Verlag GmbH, pp. 171-175, 12th International Symposium on Wireless Communication Systems, ISWCS 2015, Brussels, Belgium, 8/25/15. https://doi.org/10.1109/ISWCS.2015.7454322

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