9000 Tag limit, Where does it come from


i would like to know where the Tag limit comes from.
I read the system overview document. I read in previous topics that it has to do with the superframe.
I understand that a superframe has 15 slots, and a superframe can be sent every 100ms.
So i get that 60 (seconds in a minute) * 0.1 seconds (length of superframe) * 15 (slots in superframe) = 9000. Which is the maximum number of tags in a minute. But i do not understand why this method cant continue after 60 seconds.

Kind regards,

Quick maths correction.
60 seconds in a minute.
updates per minute = seconds per minute * frames per second * slots per frame = 60 * 10 * 15 = 9000

1 Like

are 16 slots.
I think that, for example:
if you has 5000 tags without moving, in the minimal update frequency(0.016)
You can has 70 tags moving, updated in each second(1Hz), or 35 updated in each 0.5 (2Hz).

Hope to have helped
Best regards

Just one correction Costa, there are 15 TWR slots and 16 beacon slot. So for update rate the value to use is 15.