Patent ID: 8213451

Claim:
A wireless communication terminal comprising a control unit which transmits an individual channel establishment request message to a mobile communication network, and which establishes an individual channel using an individual channel establishment parameter informed in response to said individual channel establishment request message from said mobile communication network, and which also transmits an individual channel establishment completion message to said mobile communication network based on transmission start timing included in said individual channel establishment parameter, said control unit to: store information representing that a retransmission of the individual channel establishment completion message has been done in a storage unit together with the retransmission of the individual channel establishment completion message, when a retransmission request message for the individual channel establishment completion message has been received from said mobile communication network; judge whether or not the transmission start timing is greater than a predetermined value in case where the retransmission of the individual channel establishment completion message has been done when transmitting a next individual channel establishment completion message; and switching between a transmission start timing adjustment process and a transmission power level adjustment process based on the judging result, the transmission start timing process adding a predetermined delay time to the transmission start timing included in the individual channel establishment parameter informed from said mobile communication network, the transmission power level adjustment process adding a predetermined additional power level to the transmission power level included in the individual channel establishment parameter informed from said mobile communication network.