Method and apparatus for data transmission with time-dependent data rates

The present invention relates to a method for performing a data transmission with time-varying data rate, a connection control module for a network device (SW1, SW2) for this purpose as well as a communication module for a subscriber terminal (T1-T5) for this purpose. DOLLAR A The process calls for a subscriber terminal (T1-T5) at a network facility (SW1, SW2) of a network (NET) to connect to a communication partner (T1-T5; CS1, CS2) with a guaranteed data rate (DVT1, DVT2 , DVG1, DVG2) to. The network (NET) sets up the connection and provides the most guaranteed data rate. The subscriber terminal (T1-T5) performs a first data transmission on the connection to the communication partner. Then the connection is terminated. During the existence of the connection the implementation of the following is proposed: DOLLAR A determining a currently unused by the subscriber device proportion (FVT1, FVT2, FVG1, FVG2) of the guaranteed data rate, releasing the unused portion for at least one second data transmission , and if necessary, re-deploy the entire guaranteed data rate, including a previously approved portion of the subscriber device.