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29th AIAA International Communications Satellite Systems Conference (ICSSC-2011)

机译：第29届AIAA国际通信卫星系统会议（ICSSC-2011）

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This document describes the vision of the satellite component of IMT-Advanced for an efficient DVIT service delivery with respect to application scenarios, services, system, radio and network interface aspects.This document also provides possible candidate system architectures to address the high-level of constraints placed on the satellite radio interface(s) of IMT-Advanced, particularly with respect to service and technical requirements.One exampleof radio interface for the satellite component of IMT-Advanced currently being studied in ITU-R WP 4B is the satellite radio interface SAT-OFDM.The SAT-OFDM is a satellite radio interface to provide various advanced mobile telecommunication services defined for the IMT satellite environments.The SAT-OFDM radio interface adopts orthogonal frequency division multiple access (OFDMA) in the downlink and single carrier frequency division multiple access (SC-FDMA) in the uplink.This radio interface has a high degree of commonality with the terrestrial radio specifications, 3GPP long term evolution (LTE) technology for IMT-Advanced services, but it also has a number of different features which are necessary to reflect the satellite-specific characteristics.Other examplesof radio interface for the satellite component of IMT-Advanced may be submitted to ITU-R WP 4B until the deadline of May 2012 mentioned in section 2.
机译：本文档描述了IMT-Advanced卫星组件在应用场景，服务，系统，无线电和网络接口方面的高效DVIT服务交付的愿景。本文档还提供了可能的候选系统架构，以解决高级的IMT-Advanced的卫星无线电接口受到限制，特别是在服务和技术要求方面。ITU-R WP 4B当前正在研究IMT-Advanced卫星组件的无线电接口的一个例子是卫星无线电接口SAT-OFDM.SAT-OFDM是一种卫星无线电接口，可提供为IMT卫星环境定义的各种高级移动电信服务.SAT-OFDM无线电接口在下行链路和单载波频分中采用正交频分多址（OFDMA）上行链路中的多址（SC-FDMA）。此无线电接口与地面具有高度的通用性用于IMT-Advanced服务的3GPP长期演进（LTE）技术的试用无线电规范，但它也具有反映卫星特定特性所必需的许多不同功能。IMT-Advanced卫星组件的无线电接口的其他示例可以提交至ITU-R WP 4B，直到第2节提到的截止日期2012年5月。

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