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	Propagation Delay Difference Estimation for Initial Random Access in LTE Compatible Mobile Satellite Communications System
	Li, Chengmei ; Wu, Jianjun ; Zhang, Xiaoning ; Luan, Xi ; Xing, Haige
	2014
关键词	delay difference estimation random access satellite LTE system
英文摘要	In this paper, a two-step propagation delay difference estimation method is proposed for LTE compatible multi-beam satellite systems to ensure the initial random access (RA). For GEO satellite system, there exists a large propagation delay difference, we cannot directly apply the LIE delay estimation method. To deal with this issue, we first divide a satellite beam into some layered small sub-areas according to the different delay difference values. Then, two types of Physical Random Access Channel (PRACH) preamble burst format are given. The detailed PRACH parameters are provided. Finally, simulations are performed and the results verify the availability of our proposed design.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000339412900138&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Automation & Control Systems; Engineering, Mechanical; Materials Science, Multidisciplinary; EI; CPCI-S(ISTP); 0
语种	英语
DOI标识	10.4028/www.scientific.net/AMR.846-847.647
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/405651]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Li, Chengmei,Wu, Jianjun,Zhang, Xiaoning,et al. Propagation Delay Difference Estimation for Initial Random Access in LTE Compatible Mobile Satellite Communications System. 2014-01-01.

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