Page 750 - 5G Basics - Core Network Aspects

2 Transport aspects

Table 9-15 – Reply to SRA request (SRA-R) command (sent by the FTU-O and FTU-R)

Field name Format Description

Command header One byte: [00 aaaaaa] aaaaaa = 0816
SRA response data One byte: [bbbb aaaa] aaaa = SFDC (see clause 13.2.1.1.5) to the implementation of a
new baseline configuration. (Note 1)
bbbb = new SCCC as received by the OLR request or special
values SCCC=1111, 1110 and 1101 (see clause 11.2.2.5)
(Note 2).
NOTE 1 – The reply to an SRA request shall be repeated in subsequent superframes with a decrementing superframe down
count (SFDC) until the count reaches the value zero.
NOTE 2 – The OLR request command may include updates to both NOI and DOI. However, the associated SRA-R command
always includes one and only one SCCC value. The SRA-R shall use the following SCCC values:
SCCC of the NOI if the OLR request related only to the NOI
SCCC of the DOI if the OLR request related only to the DOI
SCCC of the NOI if the OLR request related to both NOI and DOI. This SCCC shall be used to acknowledge the update over both
NOI and DOI.

Table 9-16 – Reply to RPA request (RPA-R) command

Field name Format Description
Command header One byte: [00 aaaaaa] aaaaaa = 0716
RPA response data One byte: [000b aaaa] aaaa = RPA configuration change count (RCCC) indicated
in the received OLR command of OLR request type 4
(see Table 11-9).
b shall be set to 1 if the RMC parameters requested by
update RMC parameters command (see Table 11-9) are
invalid (a reject response), otherwise b shall be set to zero
(positive acknowledgement)
NOTE – The command shall be repeated in subsequent logical frames until the superframe count value indicated in the RPA
request is reached, see clause 13.2.1.3.3.

Table 9-17 – Upstream dynamic resource report (DRRus) command (sent by the FTU-R only)

Field name Format Description

Command header One byte: [00 aaaaaa] aaaaaa = 1016
Resources metric One to four bytes The resources metric is up to four bytes long and shall be
conveyed transparently from the γR to the γO reference
point (see the DRRus.confirm primitive in Table 8-4). Annex
Y contains the resources metric definition, configuration
and representation.
NOTE – A valid DRR configuration has to be set before sending DRRus for the first time, see clause 11.2.2.17.

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