Page 749 - 5G Basics - Core Network Aspects

Transport aspects 2

Table 9-12 – FRA adjustment data

Field name Format Description

BLT status One byte: [aa00 0000] Bit-loading adjustment status, see clause 13.3.1.1:
aa = 00 – no adjustment
aa = 01 – decrease the bit-loading per sub-band by the
specified parameter value
aa = 10 – limit the maximum bit loading by the specified
parameter value
aa = 11 – reserved by ITU-T
SubBand01Params One byte: [bbbb aaaa] aaaa = parameter value to be used for sub-band 0 (Note)
bbbb = parameter value to be used for sub-band 1 (Note)
SubBand23Params One byte: [bbbb aaaa] aaaa = parameter value to be used for sub-band 2 (Note)
bbbb = parameter value to be used for sub-band 3 (Note)
SubBand45Params One byte: [bbbb aaaa] aaaa = parameter value to be used for sub-band 4 (Note)
bbbb = parameter value to be used for sub-band 5 (Note)
SubBand67Params One byte: [bbbb aaaa] aaaa = parameter value to be used for sub-band 6 (Note)
bbbb = parameter value to be used for sub-band 7 (Note)
NOTE – The 4-bit SubBandParams fields specify the parameter values to be used for implementing the bit-loading adjustment
over the various sub-bands as defined by the BLT status field. The valid parameter values are integers in the range between zero
and 12, inclusive.

Table 9-13 – Reply to FRA request command for the NOI (sent by the FTU-O and FTU-R)

Field name Format Description

Command header One byte: [00 aaaaaa] aaaaaa = 0516
FRA response data One byte: [bbbb aaaa] aaaa = LFDC (see clause 13.3.1.1.4) to the implementation of
a new active configuration. (Note 1)
bbbb = FCCC identifier of the configuration to be applied in
the logical frame when LFDC reaches the value zero. The
value of FCCC shall be the one received in the FRA request
command.
NOTE – The transmitter reply shall be repeated in subsequent logical frames with a decrementing count of LFDC until the count
reaches the value zero.

Table 9-14 – Reply to FRA request command for the DOI (sent by the FTU-O and FTU-R)

Field name Format Description

Command header One byte: [00 aaaaaa] aaaaaa = 0616
FRA response data One byte: [bbbb aaaa] aaaa = LFDC (see clause 13.3.1.1.3) to the implementation of
a new active configuration. (Note)
bbbb = FCCC identifier of the configuration to be applied in
the logical frame when LFDC reaches the value of zero. The
value of FCCC shall be the one received in the FRA request
command.
NOTE – The transmitter reply shall be repeated in subsequent logical frames with a decrementing count of LFDC until the count
reaches the value zero.

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