| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio communication terminal and a radio communication system that a user can select a desired transmission speed and desired communication quality, and a base station or a radio communication terminal decides an optimum transmission rate and optimum communication quality at the start of communication or during the communication, so as to relax increase in interference of other radio communication terminals resident in the same cell, thereby preventing excess of a channel capacity in the same cell in advance. SOLUTION: When the user uses an operation section 110 of the radio communication terminal of this invention to select quality of transmission, the operation section 110 generates a selected transmission spread rate and quality information. Furthermore, a reception propriety decision section 108 always selects the selected transmission spread rate and quality information, that are determined as being optimum and decided and negotiates with the base station during communication so as to receive and demodulate data, while adaptively changing the selected transmission spread rate. |
