Page 745 - 5G Basics - Core Network Aspects

Transport aspects 2

Table 9-6 – Format for downstream logical frame parameters

Field name Format Description

TTRds One byte: [00 aaaaaa] aaaaaa = TTRds, the number of symbol positions in the NOI of the
downstream logical frame, coded as an unsigned integer.
Within the valid range of values from 1 to 32, TTRds ≤ Mds.
TAds, IDFds One byte: [b00 aaaaa] aaaaa = TAds, the number of quiet symbol positions at the beginning of
the DOI of the downstream logical frame, coded as an unsigned
integer.
Within the valid range of values from 0 to 31, TAds ≤ Mds – TBUDGETds
(see clause 10.5). If TBUDGETds ≤ TTRds, TAds = 0.
b = IDFds, idle-data flag indicating the symbol type to be used over the
downstream NOI.
b = 0 indicates that the FTU-O may transmit idle or data symbols in
the NOI.
b = 1 indicates that the FTU-O shall transmit only data symbols over
the first min(TTRds, TBUDGETds) symbol positions in the downstream
logical frame.
TBUDGETds One byte: [00 aaaaaa] aaaaaa = the value of the parameter TBUDGETds (see clause 10.7),
coded as an unsigned integer.
Within the valid range of values from 1 to 32, TBUDGETds ≤ Mds.

Table 9-7 – Format for upstream logical frame configuration request
Field name Format Description

TTRus One byte: [00 aaaaaa] aaaaaa = TTRus, the number of symbol positions in the NOI of the
upstream logical frame, coded as an unsigned integer.
Within the valid range of values from 1 to 25, TTRus ≤ Mus.
TAus, IDFus One byte: [b00 aaaaa] aaaaa = TAus, the number of quiet symbol positions at the beginning of
the DOI of the upstream logical frame, coded as an unsigned integer.
Within the valid range of values from 0 to 24, TAus ≤ Mus – TBUDGETus
(see clause 10.5). If TBUDGETus ≤ TTRus, TAus = 0.
b = IDFus, idle-data flag indicating the symbol type to be used over the
upstream NOI.
b = 0 indicates that the FTU-R may transmit idle or data symbols in the
NOI.
b = 1 indicates that the FTU-R shall transmit only data symbols over
the first min(TTRus, TBUDGETus) symbol positions in the upstream
logical frame.
TBUDGETus One byte: [00 aaaaaa] aaaaaa = the value of the parameter TBUDGETus (see clause 10.7),
coded as an unsigned integer.
Within the valid range of values from 1 to 25, TBUDGETus ≤ Mus.

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