| 摘要 |
<p>A transmitter apparatus, receiver apparatus, communication system, and processing method for use in the receiver apparatus wherein collisions of Ack frames can be reduced. A transmitter apparatus (100) transmits an Ack frame (200) constituted only by a PLCP preamble. In a receiver apparatus (300), an RF unit (320) supplies the Ack frame (200) received via an antenna (310) to a PMD unit (340). The PMD unit (340) determines, based on the signal intensity of the Ack frame (200) supplied from the RF unit (320), the end of the Ack frame (200). Further, the PMD unit (340) generates, based on the PLCP preamble of the Ack frame (200), the timing of the end of the PLCP preamble. An PLCP unit (350) identifies the Ack frame (200) based on a result of determining, from the signal intensity, the end of the Ack frame (200) and also based on the timing of the end of the PLCP preamble generated from the PLCP preamble of the Ack frame (200).</p> |
