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Reply To: RF Contest!

#50894
pix
Guest

hi paraHO,

you snooze, you loose !

“What happens SCPIR in cases where single MS has activated two radio channels?”

Why would a MS have 2 radio channels ?

VAMOS works only for TCH, and therefore each MS needs only one TCH. As if it were in a regular TCH timeslot.

4 MS (a, b, c, d) on one VAMOS TCH timeslot means :
2 MS (a, b) in Half-Rate, paired on the HR-subchannel 0. a is on vamos-subchannel 0, b is on vamos-subchannel 1.

2 MS (c, d) in Half-Rate, paired on the HR-subchannel 1. a is on vamos-subchannel 0, b is on vamos-subchannel 1.

In the physical TCH timeslot, there is two HR subchannels, which are physically independant (as an image : HR0 = even bursts and HR1 = odd bursts).

On HR0 (even bursts), the a and b are tx-ing and rx-ing at the same time.