Since the eighth-note is measured and there is no indication, such as the dotted bar line in Example 16.15-1, that the meter is suspended, I think you need to be very explicit in the braille. I think (without seeing the print) that I would use a measure-division sign after the eighth, and then show dot-5 rests for the remainder of the measure and a part-measure in-accord containing the small notes. In that case, the fragment-repetition device would be quite appropriate.
That's my opinion. I would welcome hearing from others.