Patent ID: 8310966

Claim:
A wireless base station for supporting a plurality of transmission rates and controlling wireless communication with a wireless communication terminal, comprising: a traffic judge section that determines whether traffic is equal to or less than a connectability threshold value; a transmission rate determining section that determines a transmission rate for connection, wherein: if the traffic is equal to or less than a predetermined margin value, then the base station lowers a rate decision threshold value from a default rate decision threshold value, and if the traffic is greater than the predetermined margin value, then the base station uses the default rate decision threshold value; and a method determining section that changes, based on a result of the determination by the traffic judge section, a method of determining the transmission rate by the transmission rate determining section, wherein the traffic judge section determines whether the traffic is greater than a traffic quality threshold value and an R value, employed as a reference of a quality of sound, is less than an R quality threshold value, and wherein the rate decision threshold value sets the transmission rate based on a wave intensity of a signal received from the wireless communication terminal, such that a lower rate decision threshold value results in a higher transmission rate.