| 摘要 |
Data IQ of a first mobile radio system are processed in the baseband unit BB of the base station BS, and are converted from or into the high-frequency range inside a high-frequency unit RF of the base station. The data IQ of the first mobile radio system are transmitted between the baseband unit BB and the high-frequency unit RF via an interface IC. Data IP to be transmitted of a second mobile radio system are, before a processing in the baseband, and/or received data IP of the second mobile radio system are, after a processing, also transmitted via the interface IC.
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