The next generation of mobile communication systems is being developed for high-bandwidth mobile networks to accommodate applications with high data rates and low delay requirements such as voice over internet protocol, video streaming, cyber-physical systems and gaming. These applications consume a considerable amount of energy and hence drain the user equipment (UE) battery quickly. Long-term evolution (LTE)/LTE-advanced has adopted a discontinuous reception (DRX) mechanism to improve the energy efficiency of the UE. DRX allows UEs to monitor the physical downlink control channel in a discontinuous manner when there is no downlink traffic to reduce energy consumption. However, DRX results in higher latency due to its sleep cycle. In this study, the authors present a new scheme that improves energy efficiency in UE while maintaining an average packet delay around a permissible delay threshold. Numerical analysis and system simulation show that this scheme can achieve a significant power saving.

中文翻译：

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LTE及更高版本中使用自适应数据包排队技术的高能效不连续接收策略

正在开发用于高带宽移动网络的下一代移动通信系统，以适应具有高数据速率和低延迟要求的应用程序，例如互联网协议语音，视频流，网络物理系统和游戏。这些应用程序消耗大量能量，因此会很快耗尽用户设备（UE）的电池。长期演进（LTE）/高级LTE已经采用不连续接收（DRX）机制来提高UE的能量效率。当不存在下行链路业务以减少能耗时，DRX允许UE以不连续的方式监视物理下行链路控制信道。但是，DRX由于其睡眠周期而导致较高的延迟。在这个研究中，作者提出了一种新方案，该方案可以提高UE的能效，同时将平均分组延迟保持在允许的延迟阈值附近。数值分析和系统仿真表明，该方案可以节省大量功率。