中文摘要：

基于“北扩问题”建议的现实意义，考虑到RDSS业务提供的位置报告、短信息通信显著的社会应用价值，提出北斗二代的RDSS业务覆盖范围宜早向北扩展，建议在IGSO星上加载RDSS功能以实现。从需求角度讨论了RDSS功能向北扩展的必要性。

英文摘要：

Considering the real significance of the recommendation of “northward extending coverage area”, and that the position report service and short message service by using RDSS offer great societal benefits, we put forward the suggestion in favor of northward extending the RDSS service coverage area of the 2nd generation BEID- OU/COMPASS navigation satellite system, and tions. In addition, the necessity and feasibility adding RDSS function to IGSO satellite belong BEIDOU constella- of the suggestion are dealed with.