Be extremely cautious if you found a file named exactly on a random file-sharing site.
In telecommunications (4G/5G), "TC" and "RAR" are parts of the used by mobile devices to connect to a base station (gNB). The Technical Flow TC Setup rar
This stands for Temporary Cell Radio Network Temporary Identifier . It is a temporary "ID" assigned to your device during this setup phase. Be extremely cautious if you found a file
This ID is used to scramble further communication (Msg3) until the connection is fully established and a permanent ID is given. ⚠️ Security Warning TC Setup rar
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The network sends a Random Access Response after a device tries to connect.