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A Dynamic Mobile Terminal Sleep Mode Operation Scheme Considering Packet Queue Length Hongkui SHI Mengtian RONG Ping LI Publication IEICE TRANSACTIONS on Communications Vol.E90-B No.9 pp.2464-2471 Publication Date: 2007/09/01 Online ISSN: 1745-1345 DOI: 10.1093/ietcom/e90-b.9.2464 Print ISSN: 0916-8516 Type of Manuscript: PAPER Category: Network Keyword: sleep mode operation, discontinuous reception (DRX), power saving, next generation mobile telecommunications system, 3G-LTE, Full Text: PDF(489.2KB)>>
Summary: Due to the discontinuity of packet based traffic, the user terminals in next generation mobile telecommunications systems will be equipped with sleep mode operation functions for power saving purpose. The sleep mode parameters should be appropriately configured so that power consumption can be sufficiently decreased while packet queue length and packet delay are restricted within a demanded level. This paper proposes an adaptive sleep mode parameter configuration scheme which is able to jointly optimize the inactivity timer and sleep period in response to the variation of user traffic arrival pattern. The optimization target of this scheme is to minimize mobile terminal power consumption while ensuring that the mean downlink packet queue length do not exceed a certain threshold. Results of computer simulations prove that, the presented approach perfectly manages packet queue length restriction, packet delay control and power saving in a wide range of user packet inter-arrival rates both in single- and dual-service scenarios. | |||||
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