My application's downlink is always queued for next uplink

Hi!

I’m wondering if this is still the plan? I’m working on a project, where I would like to be able to send a downlink IF the uplink is something specific (scheduled e.g. by a HTTP request)… Is this considered possible? I read somewhere else, that if the downlink is received later than 100 ms from the uplink, it will be scheduled for the next transmission:

Is this still the case?

I am quite new to a lot of this, so I don’t know if that makes it impossible to schedule a downlink for an incoming uplink?

Thanks!