Patent ID: 7940692

Claim:
A wireless communication terminal provided in a wireless system in which periodically generated packets are transmitted and received between a single wireless base station and a plurality of wireless communication terminals at different transmission rates, which performs packet transmission based on a packet transmission system in which wireless band allocation is performed through virtual carrier sensing, the wireless communication terminal comprising: a packet receiving module configured to receive a packet from said wireless base station; a first information obtaining module configured to analyze said packet received by said packet receiving module, configured to obtain transmission rate information described in said packet, and configured to obtain required transmission time information required to transmit said packet, which is described in said packet; a time calculating module configured to calculate a time required to perform a packet transmission/reception procedure on the basis of said required transmission time information obtained by said first information obtaining module; a first other terminal recognizing module configured to determine whether or not said transmission rate obtained by said first information obtaining module is equal to or lower than a transmission rate used by said wireless communication terminal, and configured to recognize the existence of an other terminal by decoding a destination Medium Access Control (MAC) address described in said packet when said obtained transmission rate is equal to or lower than said transmission rate used by said wireless communication terminal; and a first scheduling module configured to set a band use time period that is equal to or greater than said calculated time required to perform said packet transmission/reception procedure, for a time period, within a predetermined period corresponding to a packet generation period, in which a band use time period has not yet been set, regarding said other terminal recognized by said first other terminal recognizing module and said wireless communication terminal, in order from said other terminal or said wireless communication terminal having the lowest transmission rate.