Patent ID: 8634372
Filing Date: 2014-01-21
Classification: H04L

Abstract:
1. A method of transmitting a pilot signal in a mobile communication system, comprising the steps of: time-division multiplexing a pilot signal for channel compensation together with a data signal of a user, which data signal is assigned a certain bandwidth and to be wirelessly transmitted based on Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing (DFT-spread-OFDM), into a time-division multiplexed signal; frequency-division multiplexing the time-division multiplexed signal together with time-division multiplexed signals of other users into a frequency- division multiplexed signal; and transmitting the frequency-division multiplexed signal; wherein the pilot signal of said user is composed of a sequence having a sequence length that is only a prime number; and the bandwidth assigned to the data signal of said user is adjusted to match a bandwidth corresponding to the sequence length of the pilot signal of said user.