USDJPY stays in the rising price channel on 4-hours chart and remains in uptrend from 111.68. As long as the pair stays in the channel, the fall from 115.50 could be treated as consolidation of the uptrend and another rise to 117.50 area could be expected after the consolidation. Key support is at 113.55, only break below this level could trigger another fall to retest 111.59 support.