Analysis resulted in changing into unidirectional objects would (if possible) not be backward compatible.
Unidirectional objects will not to be part of TR-532 v1.1
Issue#25 remains open
When radio is equipped with single transmitter and 2 receivers
two possible solutions presented in the proposals
decision to stick with the 'solution 2' with 2 airInterface and to work to a 'clean' solution to introduce unidirectional objects; this would cover the case of space diversity and future scenarios of P2MP
A table comparing the TX and RX classes have been discussed: