Patent ID: 9736002
Date: 2017-08-15
CPC Classifications: H04B,H04L,H04W

Claim:
1. A method of a time reversal (TR) type 1 transceiving device and a set of at least one TR type 2 transceiving device comprising: at the TR type 1 transceiving (TR1) device, receiving asynchronously at least one channel probing signal sent from each of the set of at least one TR type 2 transceiving (TR2) device through a wireless multipath channel associated with a space, wherein the at least one channel probing signal of each TR2 device is sent in a manner asynchronous from the at least one channel probing signal of the rest of the set of at least one TR2 device; performing time reversal asynchronously on at least one channel response signal derived from the at least one received channel probing signal sent from each of the set of at least one TR2 device; generating asynchronously at least one signature waveform associated with the TR1 device, the wireless multipath channel, the space and each TR2 device, based on the at least one time-reversed channel response signal associated with respective TR2 device; determining asynchronously that a set of at least one transmit signal corresponding to the set of at least one TR2 device is each to be transmitted from the TR1 device to respective TR2 device through the wireless multipath channel; performing quadrature amplitude modulation (QAM) asynchronously on each of the set of at least one transmit signal to generate a respective quadrature amplitude modulated signal; and generating asynchronously a transmission signal associated with each respective TR2 device based on the respective quadrature amplitude modulated signal and the respective at least one signature waveform.