Page 917 - 5G Basics - Core Network Aspects

Transport aspects 2

Downstream Upstream
SOC messages Signals Signals SOC messages
Early stages of channel Early stages of channel
discovery phase discovery phase
O-P-SYNCHRO 1 R-P-VECTOR 1

R-IDLE
O-IDLE Channel
discovery 2
O-P-CHANNEL- Stage R MSG 1-
DISCOVERY 2 R-P-CHANNEL-
O-UPDATE
DISCOVERY 2
O-IDLE
R-UPDATE
O-P-SYNCHRO 2

O-IDLE O-P-VECTOR 1-1 R-Vector 1 -1
Stage R-P-VECTOR 1 -1
O-P-SYNCHRO 3 R-P-VECTOR 2 R-IDLE
O-IDLE
CHANNEL DISCOVERY phase (FTU-O) O-IDLE O-P-SYNCHRO 3-1 Vector 2 bit mapping) FEEDBACK CHANNEL DISCOVERY phase (FTU-R)
O-VECTOR
O-P-VECTOR 2
FEEDBACK
(robust SOC
R ACK-
R-IDLE
R-VECTOR

R-IDLE
Stage
R-VECTOR
O-P-VECTOR 2-1
O-IDLE
R-P-VECTOR
. . .
(normal SOC
bit mapping) 2-1 FEEDBACK
R-IDLE
. . .
O-P-SYNCHRO 4
O-IDLE
R-IDLE
O-SNR O-P-PRM-
UPDATE 1 R P-PRM--
UPDATE 1
O-IDLE R SNR-

O-P-SYNCHRO 4-1 R-IDLE
Parameter
O-IDLE Update
Stage R-IDLE
O-PRM
O-P-PRM-
UPDATE 2 R P-PRM-- R PRM-
UPDATE 2
O-IDLE
R-IDLE
O-P-SYNCHRO 5
G.9701(14)-Cor.1(15)_F12-9

Figure 12-9 – The details of the later stages of the channel discovery phase

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