Synchronization method and device for flexible subcarrier OFDM (Frequency Division Multiplexing) system

Synchronization method and device for flexible subcarrier OFDM (Frequency Division Multiplexing) system

  • CN 102,256,347 A
  • Filed: 07/26/2011
  • Published: 11/23/2011
  • Est. Priority Date: 07/26/2011
  • Status: Active Application
First Claim
Patent Images

1. the method for synchronous of a flexible sub-carrier ofdm system is characterized in that, may further comprise the steps:

  • S1;

    transmitting terminal is effectively being modulated known array generation training sequence frame on the sub-carrier set, and the modulation valid data generate the time-domain signal frame;

    S2;

    transmitting terminal transmits described training sequence frame and described time-domain signal frame composition, and by emissions such as antenna or couplers;

    S3;

    receiving terminal carries out down-sampled with local training sequence to received signal;

    S4;

    receiving terminal utilizes down-sampled signal to carry out timing estimation;

    S5;

    receiving terminal carries out Carrier frequency offset estimation.

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