Wireless communication device and wireless communication method

摘要

As a parameter control unit that controls video encoding parameters regarding video encoding in a video encoding unit and transmission channel parameters regarding error correction coding and modulation in a channel coding/modulation unit so as to be linked to each other, a cross layer rate control unit is provided. The cross layer rate control unit performs variable control of the GOP size according to propagation changes by reducing the GOP size when the amount of change in the predicted value of the PHY transmission rate is larger than a determined amount of change and increasing the GOP size when the amount of change in the predicted value of the PHY transmission rate is equal to or less than the determined amount of change.

主权项

1. A wireless communication device comprising:
a video encoding unit configured to perform video encoding on video data to generate an encoded video data; a channel coding and modulation unit configured to perform error correction coding and modulation on the encoded video data to generate channel coded video data; a signal transmission unit configured to transmit the channel coded video data; and a control unit configured to perform variable control of a GOP (Group of Pictures) size in the video encoding on the basis of the amount of change in a transmission channel parameter corresponding to a predicted value of a transmission rate on a transmission channel through which the channel coded video data is transmitted, wherein the GOP size is controlled so as to become smaller than a determined size when the amount of change in the transmission channel parameter is larger than a determined amount of change.