Earticle

초록

영어

The initial release of LTE provided extensive support for deployment in spectrum allocations of various characteristics, with bandwidth ranging roughly from 1.3 MHz up to 20 MHz in both paired and unpaired bands. In LTE release 10 the transmission bandwidth can be further extended by means of so-called Carrier Aggregation (CA), where multiple component carriers are aggregated and jointly used for transmission to/from a single terminal. There are up to five component carriers, possibly each of different bandwidth, which can be aggregated, allowing for transmission bandwidth up to 100 MHz backwards compatibility where, each component carrier (CC) uses the release-8 structure. Hence, to a release-8/9 terminal, each CC will appear as an LTE release-8 carrier, while a carrier-aggregation capable terminal can exploit the total aggregated bandwidth, enabling higher data rates. In general case, a different number of component carriers can be aggregated for the downlink and uplink. Therefore, this paper highlights the carrier aggregation which supports the inter-band aggregation contiguous component carriers, intra-band aggregation non-contiguous component carriers and inter-band aggregation. This paper also presents the enhancement of LTE spectrum flexibility through carrier aggregation, further extension of multi-antenna transmission and provision of improvements in the area of inter-cell interference coordination in heterogeneous network deployments.

목차

Abstract
 1. Introduction
 2. Carrier Aggregation Schemes in LTE and LTE-Advanced
 3. Bandwidth Extension Using Carrier Aggregation
 4. Band Combinations for LTE-CA
 5. User Equipment (UE) Transmitter and Receiver Aspects
 6. User Equipment (UE) Transmitter Aspects of Carrier Aggregation
 7. UE Receiver Aspects of Carrier Aggregation
 8. Conclusions
 Acknowledgment
 References

키워드

저자

• A. Z. Yonis [ Department of Communication Engineering, College of Electronics Engineering, University of Mosul, Mosul, Iraq ]
• M. F. L. Abdullah [ Department of Communication Engineering, Faculty of Electrical and Electronic Engineering, University of Tun Hussein Onn Malaysia,Malaysia ]
• M. F. Ghanim [ College of Engineering, Computer Engineering Department, University of Mosul, Mosul, Iraq ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Advanced Science and Technology

• 간기

  월간

• pISSN

  2005-4238

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605