Intel Mobile Communications Gmbh

Infineon Technologies LLC

Armin Häutle

Jens Berkmann

Thomas Herndl

Axel G Huebner

Maria Fresia

Wolfgang Haas

Gerald Hodits

Sasha Simeunovic

A device such as a worker, window-size and iteration control unit (WWICU) is proposed. The WWICU determines processing, iteration, and window information based on format information indicative of one or more formats to be processed by a decoding process. The processing information may include a number of parallel workers, the iteration information may include a number of half-iterations, and the window information may include a window size to be used in the decoding process. The WWICU then determines time information including a total cycle count based on the processing information, the iteration information, and the window information. In response to determining that the total cycle count is not beyond a threshold value, the WWICU may transmit configuration information including the processing, iteration, and window information to a device, such as a turbo decoding device, configurable to perform the decoding process based on the configuration information.

Worker and iteration control for parallel turbo decoder

Depending on the sequence of the decoded payload signal bits (a, . . . , a) and redundancy checking bits (p, . . . , p) which are produced by the Viterbi traceback, either some of these bits are inserted by means of a distribution device () from the front into a linear feedback shift register (), or some of these bits are inserted by means of the distribution device () from the rear into a linear feedback shift register (), or all of them are inserted into a linear feedback shift register () from the rear with the allocated coefficients being unchanged, or all of them are inserted into a shift register from the front with the allocated coefficients being inverted. This allows a redundancy checking process to be carried out on a transmitted data block in the shift register () without temporary storage of the bits produced by the decoding process.

Parallel processing for decoding and cyclic redundancy checking for the reception of mobile radio signals

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Dachau, Germany

Armin Häutle