Patent ID: 9748990
Date: 2017-08-29
CPC Classifications: H04B,H04J,H04L

Claim:
1. A method for operating a device configured to operate in a full-duplex mode, the method comprising: transmitting, by the device, a training signal derived from a sequence, the training signal configured to facilitate an estimation of a channel impulse response (CIR) for a communications channel between a transmit antenna of the device and a receive antenna of the device; estimating, by the device, the CIR for the communications channel; receiving, by the device, signals corresponding to a first transmission at the receive antenna; cancelling, by the device, self-interference present in the received signals in accordance with the estimated CIR, the self-interference arising from a second transmission made by the transmit antenna of the device, thereby producing an interference canceled received signal; and processing, by the device, the interference canceled received signal, wherein transmitting the training signal comprises generating a plurality of training sequences from a set of sequences in accordance with a communications system requirement, mapping a first training sequence to a transmit antenna, multiplexing the mapped first training sequence with data symbols to produce a transmission stream, and transmitting the transmission stream as the training signal.