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Communication navigation system and server apparatus and terminal apparatus therefor, communication navigation method and communication navigation program
Communication navigation system and server apparatus and terminal apparatus therefor, communication navigation method and communication navigation program
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机译:通信导航系统及其服务器设备和终端设备,通信导航方法和通信导航程序
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摘要
A server apparatus divides map data into a plurality of block data to add identification information to each block data, and sends each block data to a terminal apparatus. The terminal apparatus identifies data for each block data sent from the server apparatus and, when uncompleted block data is detected, sends retransmission request information, which requests only the uncompleted block data to be sent to the terminal apparatus, to the server apparatus.
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