Page 909 - 5G Basics - Core Network Aspects

Transport aspects 2

Table 12-11 – FTU-O MS message NPar(2) bit definitions

ITU-T G.994.1 NPar(2) bit Definition of NPar(2) bit

Support of special probe Set to ONE if and only if this bit is set to ONE in both the last previous capabilities list
sequence request (CLR) message and the last previous CL message. If set to ONE, both the FTU-O
and the FTU-R shall use the special sequence indicated in the last previous CL message
during Channel Discovery 1-1 and Channel Discovery 1 stages.

Default CE length Set to ONE if and only if this bit is set to ONE in both the last previous CLR message and
the last previous CL message. If set to ONE, both the FTU-O and the FTU-R shall use the
default CE length LCP = m × N/64, where m = 10 and the CE length Spar(2) bit shall be
set to ZERO.
Default number of Set to ONE if and only if this bit is set to ONE in both the last previous CLR message and
symbol periods in TDD the last previous CL message. If set to ONE, both the FTU-O and the FTU-R shall use the
frame default MF value 36 and the number of symbol periods in TDD frame Spar(2) bit shall be
set to ZERO.

Table 12-12 – FTU-O MS message SPar(2) bit definitions

ITU-T G.994.1 SPar(2) bit Definition of SPar(2) bit
Profiles Always set to ONE.
DS transmission band Always set to ZERO.
Number of downstream symbol Always set to ZERO.
positions in TDD frame
RFIBANDS Always set to ZERO.
Duration of Channel Discovery 1-1 Always set to ZERO.
CE length Shall be set to ONE if and only if this bit is set to ONE in both the last
previous CLR message and the last previous CL message, and the default
CE length NPar(2) bit is set to ZERO in this MS message. If set to ONE,
indicates that the CE length multiplier to be used by both the FTU-O and
the FTU-R shall be communicated in the corresponding CE length
multiplier NPar(3) field.
If set to ZERO, the default CE length LCP = m × N/64, where m = 10 shall be
used.
Number of symbol periods in TDD Shall be set to ONE if and only if this bit is set to ONE in both the last
frame previous CLR message and the last previous CL message and the default
number of symbol periods in TDD Frame NPar(2) bit is set to ZERO in this
MS message. If set to ONE, indicates that the number of symbol periods
in a TDD frame to be used by both the FTU-O and the FTU-R shall be
communicated in the corresponding NPar(3) field.
If set to ZERO, the default MF value 36 shall be used.
IARBANDS Always set to ZERO.
Scrambler seed Always set to ZERO.
Special probe sequence Always set to ZERO.
IDS Always set to ZERO.
Number of SOC symbol repetitions (RS) Always set to ZERO.
Number of DS initialization data Always set to ZERO.
symbols (sds)
Downstream RMC offset Always set to ZERO.
Shall be set to ONE if and only if this bit is set to ONE in both the last
CD time out
previous CLR message and the last previous CL message. If set to ONE,

899