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	Uplink reference signal design for LTE compatible GEO multiple-beam mobile satellite communication system
	Si, Ying ; Ma, Ming ; Zheng, Yadan ; Ren, Shubo ; Wu, Jianjun
	2013
英文摘要	For 3GPP long term evolution (LTE) uplink, reference signal (RS) is an important kind of physical signal which is primarily used for demodulation and channel sounding. However, in the multiple-beam satellite environments, the inter-beam and intra-beam interference will break the orthogonality of uplink RS (UL-RS) from different user equipments (UEs), resulting in system performance degradation. In this paper, according to the characteristics of the satellite channels and inter/intra-beam interference, we analyze the compatibility problem, calculate the available capacity for the existing UL-RS in multiple-beam satellite environment, and propose a novel uplink RS scheme which includes UL-RS sparsing, OCC scrambling and resource configuration for LTE compatible GEO multiple-beam mobile satellite communication system. Simulation results prove the effectiveness of the proposed UL-RS scheme. ? 2013 GIRI.; EI; 617-622
语种	英语
出处	15th International Conference on Advanced Communication Technology: Smart Services with Internet of Things!, ICACT 2013
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/461373]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Si, Ying,Ma, Ming,Zheng, Yadan,et al. Uplink reference signal design for LTE compatible GEO multiple-beam mobile satellite communication system. 2013-01-01.

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