METHOD AND APPARATUS OF ASSIGNING THE RESOURCES IN SC-FDMA SYSTEM FOR THE EFFICIENT CHANNEL ESTIMATION

摘要

A resource allocation method in an SC-FDMA(Single Carrier Frequency Division Multiple Access) communication system for efficient channel estimation and a device are provided to use pilots which are adjacent to all subcarriers allocated to one user for channel estimation even without increasing a PAPR(Peak-to-Average Power Ratio), thereby improving accuracy in channel estimation. Symbols to be sent by a user are divided into at least two groups(S610). DFT(Discrete Fourier Transform) processes are performed for the symbols according to each group to generate DFT data(S620). During resource allocation in long blocks through a distributive method for the DFT data, DFT data of the same sequence of each group are individually allocated to long blocks having neighboring subcarriers(S630). Pilots for the user channel estimation are allocated to short blocks adjacent to the long blocks having the neighboring subcarriers(S640).