| 摘要 |
In a base station apparatus for transmitting a L1/L2 control channel to a user apparatus to communicate with the user apparatus, a plurality of combinations of a modulation scheme and a channel coding scheme which include a plurality of types of coding rates are prepared. The user apparatus reports downlink feedback information. The base station apparatus includes: a unit configured to collect the downlink feedback information; a unit configured to calculate a statistic based on the collected feedback information; a unit configured to determine whether a cell covered by the base station apparatus is an isolated cell or a cellular cell based on the statistic; and a unit configured to set a combination of the modulation scheme and the channel coding rate to be applied to the L1/L2 control channel based on the determination result.
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