Delay analysis of DRX in LTE-Advanced considering carrier aggregation

doi:10.1016/S1005-8885(10)60115-X

中国邮电高校学报(英文) ›› 2011, Vol. 18 ›› Issue (6): 1-7.doi: 10.1016/S1005-8885(10)60115-X

• Wireless • 下一篇

Delay analysis of DRX in LTE-Advanced considering carrier aggregation

张轶凡,高松涛,田辉,黄波

Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China

收稿日期:2011-03-14 修回日期:2011-07-28 出版日期:2011-12-31 发布日期:2011-12-30
通讯作者: 张轶凡 E-mail:zhangyf@bupt.edu.cn
基金资助:
This work was supported by Major national S&T project (2009ZX03003-003-01), the National Natural Science Foundation of China (60971125, 60832009) and DoCoMo Beijing Communications Laboratories Co., Ltd.

Delay analysis of DRX in LTE-advanced considering carrier aggregation

Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2011-03-14 Revised:2011-07-28 Online:2011-12-31 Published:2011-12-30
Contact: ZHANG Yi-fan E-mail:zhangyf@bupt.edu.cn
Supported by:
This work was supported by Major national S&T project (2009ZX03003-003-01), the National Natural Science Foundation of China (60971125, 60832009) and DoCoMo Beijing Communications Laboratories Co., Ltd.

摘要/Abstract

摘要：

The long term evolution advanced (LTE-advanced) standards target at high system performance comparable or superior to the requirements of the International mobile telecommunications advanced (IMT-advanced). In order to support backward compatibility with LTE, most of the key technologies have been retained in LTE-advanced, one of which is the discontinuous reception mechanism (DRX). LTE-advanced adopts carrier aggregation technology to extend the system bandwidth, which requires the LTE DRX applied in single-transceiver scenario to be adapted to multi-transceiver scenario with multiple component carriers. Apparently, carrier aggregation will influence the performance of DRX severely, so it’s worth studying the impact brought by the coexistence of LTE DRX and carrier aggregation on the system performance, e.g., the system delay. In this paper, first an overview of DRX in carrier aggregation scenario is given. Then it is modeled as a Markov process based on the queuing theory. Simulation results show that the independent component carrier configuration with a uniform Inactivity Timer achieves a superior service delay performance compared with other reference schemes.

关键词:

LTE-advanced, DRX, carrier aggregation, component carrier

Abstract:

Key words:

LTE-advanced, DRX, carrier aggregation, component carrier

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Delay analysis of DRX in LTE-Advanced considering carrier aggregation

Delay analysis of DRX in LTE-advanced considering carrier aggregation

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