智能交通系统 个人和车辆ITS站点的室内导航 第5部分：基于中心ITS站点（C-ITS-S）定位的要求和消息规范

[中文适用范围]： 本文件定义了支持基于中央ITS站的室内定位以提供个人/车辆（P/V）ITS站与中央ITS站之间室内导航功能的详细用例、要求和消息规范。本文件仅适用于基于中央ITS站的室内定位的核心流程。以下对于商业导航服务来说是辅助但至关重要的问题超出了本文件的范围：用户和服务的授权和认证访问，包括安全；支付；室内导航所必需的室内数据准备；从路边ITS站或中央ITS站传输和共享数据所需的低级通信协议；依赖于室内导航实例实施的其他问题。 [外文原描述]： This document defines detailed use cases, requirements and message specifications for supporting central ITS station based indoor positioning to provide indoor navigation functionality between a personal/vehicle (P/V) ITS station and the central ITS station. This document is only applicable to the core flow for the central ITS station based indoor positioning. The following issues which are adjunctive but essential for commercial navigation services are beyond the scope of this document: — authorized and authenticated access of users and services, including security; — payment; — preparation of indoor data which are necessary for indoor navigation; — low-level communication protocols required to transfer and share data from and to a roadside ITS station or a central ITS station; — other issues dependent on implementation of an instance of indoor navigation.