Patent ID: 8331332

Claim:
A wireless universal serial bus (WUSB) host which is configured to execute WUSB communication with at least one WUSB device, the WUSB host comprising: a transmitter configured to broadcast an initial control packet to the at least one WUSB device, wherein the control packet includes channel time allocation (CTA) information generated for the at least one WUSB device; a receiver configured to receive a data packet from the at least one WUSB device in a packet receiving period indicated by the CTA information included in the control packet; an analyzer configured to analyze at least one data packet received by the receiver and to determine whether the data packet has been normally received; an adaptive CTA setting unit configured to adaptively determine, for each of the at least one WUSB device, an optimal packet receiving period in which the analyzer has determined that the data packet has been normally received, and to set the CTA information generated for the at least one WUSB device based on the optimal packet receiving period; and a controller configured to generate a subsequent control packet including the CTA information set by the adaptive CTA setting unit.