Circuit arrangement for a mobile communications unit of a motor vehicle, motor vehicle and method for operating a circuit arrangement
First Claim
1. A circuit arrangement for a mobile radio unit of a motor vehicle, comprising:
- a first mobile radio module for mobile radio transmission according to a first mobile radio standard, the first mobile radio module having first and second interfaces, the first interface being a communication interface to interchange control and useful data with an external processor unit via an electrical connection that electrically connects the circuit arrangement to the external processor unit, the external processor unit being external to the circuit arrangement;
a second mobile radio module for mobile radio transmission according to a second mobile radio standard, the second mobile radio module having a communication coupling, the communication coupling being a communication interface that electrically connects to the first mobile radio module via the second interface of the first mobile radio module, so that the first and second mobile radio modules can interchange control and useful data via the communication coupling of the second mobile radio module and the second interface of the first mobile radio module and so that all control and useful data from the second radio module are routed through the first radio module;
a first switch to selectively transmit data to the first mobile radio module or the second mobile radio module;
a SIM chip operable by a vehicle manufacturer; and
a second switch to switch between the SIM chip operable by the vehicle manufacturer and identification data relating to a user received from a Subscriber Identity Module (SIM), whereinthe first and second mobile radio modules, the electrical connection, the SIM chip operable by the vehicle manufacturer and the first and second switches are arranged on a common plug-in card,the first mobile radio module serially receives the identification data relating to the user via a connection of the first interface of the first mobile radio module,the identification data relating to the user is received from the Subscriber Identity Module (SIM) via the electric connection, andthe Subscriber Identity Module (SIM) is external to the common plug-in card.
1 Assignment
0 Petitions
Accused Products
Abstract
A circuit arrangement for a mobile radio unit of a motor vehicle has a first mobile radio module for mobile radio transmission according to a first mobile radio standard, and a second mobile radio module for mobile radio transmission according to a second mobile radio standard, the first mobile radio module having a communication interface which is intended to interchange control and useful data and is connected to an electrical connection for electrically connecting the circuit arrangement to an external processor unit. The first mobile radio module has an additional interface which is used to electrically connect the first mobile radio module to a communication interface of the second mobile radio module, which communication interface is designed to interchange control and useful data. Reliable mobile radio transmission is enabled for voice data and other digital useful data with little development and circuit complexity.
19 Citations
15 Claims
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1. A circuit arrangement for a mobile radio unit of a motor vehicle, comprising:
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a first mobile radio module for mobile radio transmission according to a first mobile radio standard, the first mobile radio module having first and second interfaces, the first interface being a communication interface to interchange control and useful data with an external processor unit via an electrical connection that electrically connects the circuit arrangement to the external processor unit, the external processor unit being external to the circuit arrangement; a second mobile radio module for mobile radio transmission according to a second mobile radio standard, the second mobile radio module having a communication coupling, the communication coupling being a communication interface that electrically connects to the first mobile radio module via the second interface of the first mobile radio module, so that the first and second mobile radio modules can interchange control and useful data via the communication coupling of the second mobile radio module and the second interface of the first mobile radio module and so that all control and useful data from the second radio module are routed through the first radio module; a first switch to selectively transmit data to the first mobile radio module or the second mobile radio module; a SIM chip operable by a vehicle manufacturer; and a second switch to switch between the SIM chip operable by the vehicle manufacturer and identification data relating to a user received from a Subscriber Identity Module (SIM), wherein the first and second mobile radio modules, the electrical connection, the SIM chip operable by the vehicle manufacturer and the first and second switches are arranged on a common plug-in card, the first mobile radio module serially receives the identification data relating to the user via a connection of the first interface of the first mobile radio module, the identification data relating to the user is received from the Subscriber Identity Module (SIM) via the electric connection, and the Subscriber Identity Module (SIM) is external to the common plug-in card. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A motor vehicle having a mobile radio unit with a circuit arrangement comprising:
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a first mobile radio module for mobile radio transmission according to a first mobile radio standard, the first mobile radio module having first and second interfaces, the first interface being a communication interface to interchange control and useful data with an external processor unit via an electrical connection that electrically connects the circuit arrangement to the external processor unit, the external processor unit being external to the circuit arrangement; a second mobile radio module for mobile radio transmission according to a second mobile radio standard, the second mobile radio module having a communication coupling, the communication coupling being a communication interface that electrically connects to the first mobile radio module via the second interface of the first mobile radio module, so that the first and second mobile radio modules can interchange control and useful data via the communication coupling of the second mobile radio module and the second interface of the first mobile radio module and so that all control and useful data from the second radio module are routed through the first radio module; a first switch to selectively transmit data to the first mobile radio module or the second mobile radio module; a SIM chip operable by a vehicle manufacturer; and a second switch to switch between the SIM chip operable by the vehicle manufacturer and identification data relating to a user received from a Subscriber Identity Module (SIM), wherein the first and second mobile radio modules, the electrical connection, the SIM chip operable by the vehicle manufacturer and the first and second switches are arranged on a common plug-in card, the first mobile radio module serially receives the identification data relating to the user via a connection of the first interface of the first mobile radio module, the identification data relating to the user is received from the Subscriber Identity Module (SIM) via the electric connection, and the Subscriber Identity Module (SIM) is external to the common plug-in card. - View Dependent Claims (10)
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11. A method for operating a circuit arrangement for a mobile radio unit of a motor vehicle, the circuit arrangement comprising:
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a first mobile radio module for mobile radio transmission according to a first mobile radio standard, the first mobile radio module having first and second interfaces, the first interface being a communication interface to interchange control and useful data with an external processor unit via an electrical connection that electrically connects the circuit arrangement to the external processor unit, the external processor unit being external to the circuit arrangement; a second mobile radio module for mobile radio transmission according to a second mobile radio standard, the second mobile radio module having a communication coupling, the communication coupling being a communication interface that electrically connects to the first mobile radio module via the second interface of the first mobile radio module, so that the first and second mobile radio modules can interchange control and useful data via the communication coupling of the second mobile radio module and the second interface of the first mobile radio module and so that all control and useful data from the second radio module are routed through the first radio module; a first switch to selectively transmit data to the first mobile radio module or the second mobile radio module; a SIM chip operable by a vehicle manufacturer; and a second switch to switch between the SIM chip operable by the vehicle manufacturer and identification data relating to a user received from a Subscriber Identity Module (SIM), the first and second mobile radio modules, the electrical connection, the SIM chip operable by the vehicle manufacturer and the first and second switches being arranged on a common plug-in card, the method comprising; receiving control commands at the first mobile radio module via the first interface of the first mobile radio module; examining the control commands at the first mobile radio module to determine whether each control command is intended for the first mobile radio module or the second mobile radio module; controlling the second mobile radio module according to commands intended for the second mobile radio module, the second mobile radio module being controlled by the first mobile radio module via the second interface of the first mobile radio module; and serially receiving via a connection of the first interface of the first mobile radio module, the identification data relating to the user, from the Subscriber Identity Module (SIM) via the electric connection, the Subscriber Identity Module (SIM) being external to the common plug-in card. - View Dependent Claims (12, 13, 14, 15)
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Specification