| 摘要 |
The invention relates to a circuit arrangement for a mobile communications unit (12) of a motor vehicle (10), comprising a first mobile communications module (34) for a mobile communications transmission according to a first mobile communications standard or a plurality of mobile communications standards and a second mobile communications module (36) for a mobile communications transmission according to a second mobile communications standard, wherein the first mobile communications module (34) has a communication interface (60) for exchanging control and user data, which interface is connected to an electrical connection (30) for electrically connecting the circuit arrangement to a an external processor unit (14). Reliable mobile communications transmission for language data and other digital user data should be rendered possible with low expenditure on development and circuitry. For this purpose, according to the invention the first mobile communications module (34) comprises a supplemental interface (70), by means of which the first mobile communication module (34) is electrically connected to a communication interface (62) of the second mobile communication module (34) designed for exchanging control and user data. |
