AssistNow Framework

Free Assisted GPS (A-GPS) Solution

• The AssistNow Global Reference Network is a worldwide network of GPS receivers, which gather satellite information such as Ephemeris, Almanac, satellite health and status and forward it to the AssistNow Root Server.
  
  
• The AssistNow Root Server collects the data from the Global Reference Network, calculates the assistance data and handles data requests originating from mobile terminals or other devices. On request, the Root Server generates the data packets and transmits them either directly to the client's terminal, mobile device or proxy server.
  
  
• With the optional Proxy Server arrangement, individual requests from mobile terminals are locally handled by the customer's proxy server. This server receives regular aiding data information updates from the u-blox AssistNow Root Server, ensuring that up-to-date information is available to user terminals when requested. This solution is totally scalable and gives the customer full control and data privacy. Customers can use their communication link of choice for the communication between the user terminals and the server.
  
  
• In the Mobile Terminal microcontroller resides a very simple software. This provides communication with the Root or Proxy Server over a network and transfers data to the GPS receiver via UART, USB, SPI or I2C interfaces.