Patent ID: 8130711
Filing Date: 2012-03-06
Classification: H04L,H04W

Abstract:
1. In a wireless communication network, a method for transmitting pilots signals in a sub-frame, the sub-frame including a plurality of symbols, the method comprising: at a first frequency band, transmitting from user equipment to a base station a data modulation (DM) pilot signal for use in demodulating data contained in a first symbol and a second symbol of the sub-frame, wherein a frequency band at which the DM pilot signal of the first symbol is transmitted is not overlapped with a frequency band at which the DM pilot signal of the second symbol is transmitted, and a bandwidth of the frequency band at which the DM pilot signal of the first symbol is transmitted is identical to a bandwidth of the frequency band at which the DM pilot signal of the second symbol is transmitted; and at a second frequency band, transmitting from the user equipment to the base station a channel quality (CQ) pilot signal for use in measuring channel quality associated with at least one symbol of the sub-frame, wherein the CQ pilot signal is transmitted in the last symbol of the sub-frame, wherein the second frequency band is wider than the first frequency band.