Design of a Load-based DRX Scheme for Non-Real-Time Traffic in LTE

In this paper, a revised version of the authors’ previously proposed power saving scheme for IEEE 802.16 is proposed to be applied in LTE. The proposed scheme namely LTE-LBPS-Aggr treats the traffic of all UEs as a single flow, estimates the input load by traffic measurement and the channel capacity by CQI reports, calculates the length of the sleep cycle, and notifies all UEs of the next radio-on time for receiving data. Simulation study shows that the proposed scheme outperforms the standard DRX mechanism in terms of the power saving efficiency and the delay performance.

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