Method and device for determining an integer carrier frequency deviation in an OFDM system by evaluating different modulation values of various sub-carrier groups

摘要

a method and a device for identifying a tru00e4gerfrequenzabweichung (m.u0394f) equal to integer multiples of (m) of the subtru00e4gerabstands (u0394f) in an ofdm transmission system with phasenmodulierten ofdm symbols occupied subkanu00e4len (ku2208m) and with ofdm symbols occupied subkanu00e4len (ku2209m) in the modulation of the number (m) of the phasenzu if the phasenmodulation higher number of phasenzustu00e4nden modulated.each received ofdm symbol is given (is, k) with the number (m) of the phasenzustu00e4nde the phasenmodulation corresponding factor determined the respective subkanal (k), high average (u03a3u03bbn, k, u03a3u03bbn, k) on temporally consecutive, potentiated and the respective subkanal (k the received ofdm symbols (u03bbn), k, u03bbn, k)as a respective integer factor (l)) metric (a (l)) from the sum of the calculated mean values (u03a3u03bbn, k, u03a3u03bbn, k) of subkanu00e4len (k + l), with the factor (1) with the phasenmodulierten ofdm symbols occupied subkanu00e4len (ku2208m) transferred,and identifies the maximum calculated metric to (a (l)) associated factor (l) as integer multiple of (m) of the subtru00e4gerabstands (u0394f) in the tru00e4gerfrequenzabweichung (mu00b7u0394f).