Patent ID: 7366106

Claim:
A radio communication terminal which communicates packets with a base station, comprising: a reception means which receives the packets transmitted by the base station in an idle state of the radio communication terminal; a signal processing means which calculates an estimated transmission rate available after a communication path is established, based on information included in the packets received by the reception means; and a display means which displays information indicating the estimated transmission rate calculated by the signal processing means; wherein: each packet includes a broadcast message area and a communication information area, and each of the areas is composed of a plurality of slots as units of time division; wherein: each slot of the broadcast message area and the communication information area contains a pilot signal, and information indicating the number of radio communication terminals connected with the base station is stored in a slot of the broadcast message area; wherein the signal processing means includes: a determination means which obtains a parameter regarding signal quality from the pilot signal and determines a transmission rate to be requested of the base station based on the parameter; an acquisition means which acquires the number of radio communication terminals connected with the base station from the information indicating the number of radio communication terminals; and a measuring means which measures the number of used slots and the number of idle slots by referring to the communication information, wherein: the transmission rate available in communication is estimated from the requested transmission rate, the number of radio communication terminals, the number of used slots and the number of idle slots.