Patent ID: 6977884
Filing Date: 2005-12-20
Classification: H04L

Abstract:
1. A transmitting apparatus for transmitting a plurality of channels of multi-carrier modulated signals each having a plurality of sub-carriers modulated in response to transmission data, the apparatus comprising: a transmission path estimation method selection circuit for each channel for selecting an estimation method of the transmission path in response to an attribute of said transmission data, a mapping circuit for each channel for arranging signal points in said plurality of sub-carriers in response to a selected modulation method based on said transmission data, a transmission path estimation processing circuit for each channel for estimating a transmission path for the output signal of said mapping circuit in response to said selected transmission path estimation method, a multiplex circuit for multiplexing output signals for each channel from each transmission path estimation processing circuit and outputting a multiplexed signal, and an orthogonal transform circuit for orthogonally transforming multiplexed signal from said multiplex circuit.