Method for operating a digital interface arrangement, and digital interface arrangement for exchanging data
A method for operating a digital interface arrangement and a digital interface arrangement for exchanging data between at least one digital control unit operating in the baseband of a communication terminal and at least one radio transmitter/radio receiver device of said communication terminal. The baseband control unit is connected to a first number of data paths that can be used in parallel for exchanging data via a first interface device while each radio transmitter/radio receiver device is connected to at least some of the data paths that can be used in parallel for exchanging data via one respective second interface device. If at least two groups are provided, the first interface device and second interface device transmit data in a substantially simultaneous manner on the data paths contained in said groups by means of a multiplexing method.
1 - 19 . (canceled)
20 . A method for operating a digital interface arrangement for exchanging data between at least one digital control device in the baseband of a communication terminal and at least one digital radio transmitter/radio receiver device coupled to a radio transmitter/radio receiver control device of the communication terminal, the method comprising the steps of:
assigning a first number of parallel data paths to a first interface device, said first interface device being connected to the at least one baseband control device;
assigning at least some of the parallel data paths to at least one second interface device, said second interface device being connected to a respective at least one radio transmitter/radio receiver device, wherein each second interface device is assigned a group of data paths for multiplexed transmission to the first interface device when at least two groups are present;
monitoring all the data paths, during an initialization phase, via each of the at least one second interface device until a unique identification information assigned to at least one second interface device is detected;
assigning address information, via the first interface device, of the radio transmitter/radio receiver control device;
transmitting address information with the identification information to the radio transmitter/radio receiver control device; and
controlling the radio transmitter/radio receiver control device in at least one function by the first interface control device following assignment of the address during the initialization phase.
21 . The method as claimed in claim 20 , wherein the multiplexed transmission is space division multiplexing of the data paths
22 . The method as claimed in claim 20 , wherein the multiplexed transmission is time division multiplexing is implemented on the data paths.
23 . The method as claimed in claim 20 , wherein the multiplexed transmission is a combination of space division multiplexing and time division multiplexing when at least one data path is contained in more than one group.
24 . The method as claimed in claim 20 , wherein the first interface device and the second interface device receive a first clock signal and the first interface device and second interface device are clocked on the basis of the first clock signal.
25 . The method as claimed in claim 24 , wherein the first interface device or at least some of the second interface devices generate an internal second clock signal as a function of the first clock signal along with a factor.
26 . The method as claimed in claim 25 , wherein the first clock signal is multiplied by a factor comprising N/M, where N and M are numbers from the set of natural numbers, in order to generate the second clock signal
27 . The method as claimed claim 24 , wherein the first clock signal is varied.
28 . The method as claimed in claim 25 , wherein the factor is varied.
29 . The method as claimed in claim 27 , wherein information for varying the first clock signal is transmitted via the data bus.
30 . The method as claimed in claim 25 , wherein information for varying the factor is transmitted via the data bus.
31 . The method as claimed in claim 23 , wherein the first clock signal is used in such a way that the groups used at the time of operation are operated synchronously in time.