dwm1001 about SVC0 and SVC1

Wireless Connectivity Ultra-Wideband
1

hi, all:

the pdf document dwm1001_system_overviem.pdf, we see the BCN0~15 and SVC0~1, every anchor will send BCNx respond to seat number, will every anchor send SVC0 and SVC1 ?

2

hi,

when be used ack frame？