| 摘要 |
A device transmits automobile data to a server in a communication network. The device records the automobile data obtained from a plurality of sensors installed in the automobile. The device transmits a random access preamble on a first plurality of subcarriers of an uplink carrier to a base station, when a pre-defined condition is met. The device encrypts the automobile data using a first encryption key and transmits the encrypted automobile data to a server via a base station. The base station decrypts the automobile data before forwarding it to the server.
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