Patent ID: 9660853
Date: 2017-05-23
CPC Classifications: H04L,H04W

Claim:
1. A wireless communication method for transmitting data signals of a first user and a second user using a first subcarrier group and a second subcarrier group, respectively, and transmitting a pilot signal of the first user and a pilot signal of the second user, the method comprising: allocating the pilot signal of the first user and the pilot signal of the second user to different frequencies, wherein each pilot signal is generated based on a Zadoff-Chu sequence; and copying one or more subcarrier components of lower frequencies in the pilot signal of the first user to one or more subcarrier components of higher frequencies in the pilot signal of the first user and copying one or more subcarrier components of lower frequencies in the pilot signal of the second user to one or more subcarrier components of higher frequencies in the pilot signal of the second user.