Also known as: CSBK, control signalling block, control signaling block
A CSBK (control signalling block) is the single-block control message of
DMR. On a Tier III control channel, CSBKs
carry call requests, channel grants, and system data — the
DMR counterpart of P25’s TSBK.1
DMR Tier III coordinates the system with CSBKs; a grant CSBK assigns a traffic channel and timeslot.
Overview
CSBKs are protected by BPTC coding. Following them is how a decoder
tracks trunked DMR, just as TSBKs are followed on P25.
Sources
Digital mobile radio — Wikipedia, on DMR control signalling and Tier III trunking. ↩
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