| 摘要 |
PROBLEM TO BE SOLVED: To provide a mobile wireless system that can complete software downloading during communication (speech) in a short time. SOLUTION: This invention provides the mobile wireless system that is characterized in that the system uses a mobile station terminal that can be compatible with a communication system adopting different modulation systems, leads reception signals to an analog/digital converter through a frequency conversion section not having a channel separation function, converts the signals into digital signals and applies digital signal processing to them, and newly assigns an information channel signal used for communication as a channel signal to download a software program related to a modulation system from a base station to the mobile station terminal in order to make the digital signal processing corresponding to the different modulation system so as to attain downloading of the software during communication by a user of the mobile station terminal.
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