Design of Dynamic and Adjustable Power Saving Mechanisms for LTE

• Main Authors: Chin Yu Lai, 賴俊佑
• Other Authors: Huei Wen Ferng
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/80653279330226112737

碩士 === 國立臺灣科技大學 === 資訊工程系 === 102 === The two fixed sleep periods in the DRX (Discontinuous Reception) scheme of LTE bring huge delay if the UE (User Equipment) enters the power saving mode with low power consumption or more power consumption if the UE enters the power saving mode with low delay. To provide flexibility on this tradeoff, two kinds of dynamic and adjustable discontinuous reception (DADRX) schemes, which offer various sleep periods to UEs, and flexibility on the tradeoff between power consumption and delay, is proposed in this thesis. With such two kinds of DADRX, delay can be reduced when the UE is in the power saving mode with low power consumption or power consumption can be lowered when it is in the power consumption mode with low delay. Therefore, more selective sleep periods as well as better tradeoff between dealy and power consumption are offered simultaneously to better fit the needs of users. Via both analytic and simulation approaches, better balance between power consumption and delay and flexibility can be achieved by two kinds of DADRX as compared to the original DRX scheme in LTE.