The U.S. filings for multimedia satellites: a review
The U.S. filings for multimedia satellites: a review
复制标题
美国多媒体卫星申请：审查
DOI：
10.1002/1099-1247(200005/06)18:3
复制
发表时间：
2000
影响因子：
1.7
通讯作者：
J. V. Evans
中科院分区：
文献类型：
--
作者：
J. V. Evans
美国联邦通信委员会（FCC）在业界压力下举行了四次拟议规则制定通知会议，各公司可在这些会议上申请在新频率（Ka或Q/V波段）或Ku波段新的非地球静止轨道上运行的卫星系统的许可证。第一次建议制定规则的通知导致1997年5月授予13个Ka波段系统的许可证。其中7个提议提供全球或接近全球的服务。联邦通信委员会为各公司申请Ka波段系统打开了第二个窗口，该窗口于1997年12月关闭，结果又提出了9份申请，其中7份是全球系统的申请。到目前为止，这些系统都没有获得许可证。与第二个Ka波段窗口并行的是一个用于在Q和V波段中的更高频率下操作的系统的窗口。这导致了16项申请，其中14项是全球系统。最近（1999年1月），联邦通信委员会为在Ku波段运行的非地球静止卫星系统缔结了建议制定规则的通知。六个系统的申请都是为了全球服务。几乎所有上述系统都旨在通过提供诸如多媒体分发和因特网接入之类的宽带服务来为小型办公室和消费者服务。对拟议的全球系统进行了审查，并讨论了以低成本向用户提供这类服务所采取的技术办法。部署任何一个全球系统都需要面对重大的技术挑战和很大的业务风险。这似乎有可能妨碍筹集资本的努力，并有可能使任何系统的完成推迟到宣布的初始运行日期（2001-2003年）之后。
The United States Federal Communications Commission (FCC), in response to industry pressure, has conducted four Notice of Proposed Rule Making (NPRM) sessions in which companies could apply for licenses for satellite systems operating at new frequencies (Ka- or Q/V-band) or in new, non-geostationary orbits at Ku-band. The first NPRM resulted in the award, in May 1997, of licenses for 13 systems operating at Ka-band. Of these, seven propose to offer global or near-global service. The FCC opened a second window for companies to file for Ka-band systems, which closed in December 1997 and resulted in nine additional filings, seven of which are for global systems. Thus far, none of these systems have been licensed. In parallel with the second Ka-band window was one for systems operating at still higher frequencies, in the Q- and V-bands. This resulted in 16 filings, 14 of which are for global systems. Still more recently (January 1999), the FCC concluded an NPRM for non-geostationary satellite systems operating at Ku-band. Applications were filed for six systems-all intended for global service. Nearly all of the above systems are intended to serve small offices and consumers by providing broadband services such as multimedia distribution and Internet access. The proposed global systems are reviewed, and the technical approaches taken to provide this type of service at low cost to the user are discussed. Fielding any of the global systems entails significant technical challenges and a large degree of business risk. This seems likely to hamper efforts to raise capital and may defer the completion of any of the systems beyond their announced dates of initial operation (2001-2003).