Patent ID: 8160099

Claim:
A radio communication terminal which transmits and receives a plurality of types of packets including a particular type of packet to and from a communication destination device through a radio base station, the radio communication terminal comprising: a communication session setting unit configured to set a first communication session and a second communication session between the radio communication terminal and the communication destination device, the first communication session being a logical communication path used for transmitting the particular type of packet, the second communication session being a logical communication path used for transmitting a type of packet different from the particular type of packet; a radio quality information acquiring unit configured to acquire radio quality information showing a radio quality between the radio communication terminal and the radio base station; a packet transmission mode selector configured to select any one of a first packet transmission mode and a second packet transmission mode on the basis of the radio quality information acquired by the radio quality information acquiring unit, the first packet transmission mode including an addition of a session identifier to the particular type of packet, the session identifier indicating that the particular type of packet is transmitted by using the first communication session, the second packet transmission mode omitting the addition of the session identifier to the particular type of packet; and a session identifier adding unit configured to add the session identifier to the particular type of packet if the first packet transmission mode is selected by the packet transmission mode selector, wherein the session identifier adding unit omits the addition of the session identifier to the particular type of packet if the second packet transmission mode is selected by the packet transmission mode selector.