Data bit stream error protection method esp. for mobile phone networks - requires attaching given number of known tail-bits to end of respective data-blocks for protection of information-carrying bits in end-zones

摘要

A method of protecting against errors during transmission of a data bit stream in a digital telecommunications system, in which channel coding of the data bit stream is carried out block- wise with the use of a recursive convolution code. To protect the information-carrying bits located in the end-zone of a data-block (x) from the channel coding, a given number of known tail-bits (t) are attached to the end of the respective data-block (x). A systematic code is specifically used for the channel coding, or more specifically a turbo-code is used and contains at least one recursive convolution code as the component code.