review section 7 after applying other comments

[Xavier Vilajosana]

9. I think the contents of section 7.1 are entirely dependent on the specifics of an implementation and the section should be omitted.

TW> I believe this section might help and implementor, no? TW> I suggest we apply the comment by Brian on the same section, and reconsider whether 7.1 should stay.

[Xavier Vilajosana]

to be evaluated