RECEPTION STATUS INFORMATION NOTIFYING METHOD AND RECEPTION STATUS INFORMATION NOTIFYING APPARATUS

摘要

To prevent the increase in overhead from occurring due to an increase in the amount of reception status feedback information. In a reception status information notifying apparatus (A), a reception status estimating part (1) estimates a reception status from a received signal to output reception status information. A reception status information storing part (7) outputs the previously stored reception status information to a second notified information generating part (11), and stores the current reception status information from the reception status estimating part (1). The second notified information generating part (11) calculates the difference between the current reception status information from the reception status estimating part (1) and the previously stored reception status information from the reception status information storing part (7) to generate second notified information. A first notified information storing part (15) outputs first notified information, which was stored latest, to a third notified information generating part (17), and stores first notified information in accordance with an storage instruction from a notified information selecting part (5). It should be noted that the storage instruction is issued only when it has been decided that the first notified information be notified. The third notified information generating part (17) calculates the difference between the current reception status information from the reception status estimating part and the latest-stored first notified information from the first notified information storing part (15) to generate third notified information.