Patent ID: 9608712
Date: 2017-03-28
CPC Classifications: H04B

Claim:
1. A method for controlling a transmission signal in a first transceiver, the method comprising: receiving, from a second transceiver, information including cyclic shift values corresponding to each beam index of multiple layers of the first transceiver, wherein the cyclic shift values to be applied to multiple layers of the first transceiver are determined by the second transceiver based on channel state information feedback; generating signals to be transmitted to the second transceiver; identifying cyclic shift values that are applied to the signals corresponding to the multiple layers based on the received information including the cyclic shift values; cyclically shifting the signals according to the identified cyclic shift values; and transmitting the cyclically-shifted signals to the second transceiver, wherein each cyclic shift value that is applied to each layer of the first transceiver is different from each other.