Defining Functional Requirements for a Lightweight GNSS Support Protocol (LGSP)

Monash University is developing a lightweight GNSS (global navigation satellite system) support protocol (LGSP). This protocol aims to comprehensively address limitations in the traditional GNSS model, such as low signal availability in urban environments, receiver initialisation delays and bandwidth restrictions, by offering an alternative secure distribution channel for GNSS data. This gives compatible receivers an alternate means for acquiring GNSS data, resulting in enhanced robustness, efficiency and availability of GNSS systems. Development of LGSP has progressed, and a protocol specification is being prepared for release as an Internet draft to the IETF. This paper discusses motivations for the creation of LGSP, and presents key constraints and aims in the development of the protocol.