Abstract:

With the development of Beidou navigation industry and the mature construction of Beidou satellite global networking, the application of 5G+ Beidou high-precision positioning services in industries such as surveying and mapping, deformation monitoring, driving test driving training, and automatic driving is in the stage of large-scale promotion.The demand for high-precision positioning product service quality evaluation from industry customers is gradually emerging.The existing evaluation methods focus on reference stations and receiver terminals, which cannot provide reference for industry customers in using or how to choose high-precision positioning services.Therefore, a high-precision positioning service quality evaluation system for industry applications is needed to provide reference for industry applications.A set of evaluation index systems was innovatively proposed, especially combining the definition in 3GPP Release17 and the needs of industry customers such as automotive companies, to build a complete category index system, and it was verified in different regions and scenarios nationwide.By processing a large amount of data results, the impact of masking environment on terminal devices in dynamic movement, high-precision positioning platforms, and terminal adaptation, which were more concerned by industry users, were analyzed, and optimization suggestions for improving service quality were provided.In addition, the service quality under the condition of single Beidou was compared and analyzed.

Key words: 5G, high-precision positioning, test scheme, poor quality reason