Study on power saving based on radio frame in LTE wireless communication system using DRX

Long Term Evolution (LTE) of 3GPP provides high bandwidth for data transfer. Having high bandwidth transfer will exhaust the user equipment (UE)'s battery power quickly. To extend the UE's battery lifetime the 3GPP standards for LTE support Enhanced Discontinuous Reception (DRX). The DRX allow an idle UE to save battery by turning off the radio receiver for a predefined period. Since the Transmission Time Interval (TTI) is related to the size of the data block passed from the higher networks layers to the radio link layer, the DRX scheduler should vary the resource allocation of each user basis on TTI. In this paper, we have evaluated the influences of the TTI sizes as well as the effects of LTE DRX Light and Deep Sleep mode on power consumption for Voice and Web traffic.

[1]  Jui-Hung Yeh,et al.  Comparative Analysis of Energy-Saving Techniques in 3GPP and 3GPP2 Systems , 2009, IEEE Transactions on Vehicular Technology.

[2]  Walter Willinger,et al.  Self-similarity through high-variability: statistical analysis of Ethernet LAN traffic at the source level , 1997, TNET.

[3]  Haiming Wang,et al.  Principle and Performance of TTI Bundling For VoIP in LTE FDD Mode , 2009, 2009 IEEE Wireless Communications and Networking Conference.

[4]  Sally Floyd,et al.  Wide area traffic: the failure of Poisson modeling , 1995, TNET.

[5]  Lan Chen,et al.  DRX-Aware Scheduling Method for Delay-Sensitive Traffic , 2010, IEEE Communications Letters.

[6]  Michael Meyer,et al.  LTE Coverage Improvement by TTI Bundling , 2009, VTC Spring 2009 - IEEE 69th Vehicular Technology Conference.

[7]  Yi-Bing Lin,et al.  Modeling UMTS discontinuous reception mechanism , 2005, IEEE Transactions on Wireless Communications.

[8]  Lei Zhou,et al.  Performance Analysis of Power Saving Mechanism with Adjustable DRX Cycles in 3GPP LTE , 2008, 2008 IEEE 68th Vehicular Technology Conference.

[9]  Olav Tirkkonen,et al.  LTE, the radio technology path towards 4G , 2010, Comput. Commun..

[10]  Hui-Nien Hung,et al.  Modeling UMTS Power Saving with Bursty Packet Data Traffic , 2007, IEEE Transactions on Mobile Computing.

[11]  Thomas Haustein,et al.  Energy and Spectrum Efficient Transmission Modes for the 3GPP-LTE Uplink , 2007, 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications.

[12]  Suki Kim,et al.  An adjustable power management for optimal power saving in LTE terminal baseband modem , 2009, IEEE Transactions on Consumer Electronics.

[13]  Sally Floyd,et al.  Wide-Area Traffic: The Failure of Poisson Modeling , 1994, SIGCOMM.

[14]  Chandra S. Bontu,et al.  DRX mechanism for power saving in LTE , 2009, IEEE Communications Magazine.