| 摘要 |
A transmission method selection section ( 223 ) selects either a first packet transmission method or a second packet transmission method. When the first packet transmission method is selected, an SRQ information generation section ( 224 ) generates SRQ (scheduling request) information based on the amount of data calculated by a data amount measuring section ( 221 ) and/or the retention time thereof, and the transmission power that can be used for packet data transmission calculated by a transmission power calculation section ( 222 ). On the other hand, when the second packet transmission method is selected, the SRQ information generation section ( 224 ) does not perform SRQ information generation, or generates SRQ information of a specific value for which packet data transmission is never permitted. By this means, in a radio communication system in which packet transmission is performed on uplinks and the packet transmission method is switched adaptively, the packet transmission method can be reported without transmitting a dedicated signal to a base station apparatus.
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