Transmission system, transmitter device, and receiver device,申请号US20050196817-传众专利搜索

Transmission system, transmitter device, and receiver device

申请公布号：US2006198472(A1)

申请号：US20050196817

申请日期：2005.08.03

申请公布日期：2006.09.07

申请人：

FUJITSU LIMITED

发明人：NAKAMURA MICHIHARU;TAKEO KOHJI

分类号：H04L27/06

主分类号：H04L27/06

摘要：A transmission system which is simple in construction and yet can effectively avoid inter-symbol interference. A transmitter device transmits a signal block while repeating the same signal block twice consecutively. A receiver device receives the signal blocks, performs Fourier transform operation on the two identical signal blocks at respective predetermined timings, matches the phases of the two signal blocks with each other by waveform equalization in frequency domain, combines the signal blocks, and demodulates the combined signal block. With the transmission system, various propagation path conditions, in particular, changes in delay time can be flexibly coped with by just appropriately setting the Fourier transform operation timing, whereby inter-symbol interference can be avoided more effectively than in the case of using fixed-length GI.