Real-time navigation method for mobile environment

摘要

A method of providing navigational information to a user connected in real-time, such as through a wireless telephone, PDA, or other device. The method provides navigational information to the user (202) by
- establishing a real-time connection between a server (212) and the user;
- receiving location information for the user from the server;
- determining the uncertainty in the parameters that are needed to provide navigational information to the user; and
- providing navigational information to the user, based on said uncertainty.