Page 861 - 5G Basics - Core Network Aspects

Transport aspects 2

11.4.1.1.7 Actual INP against SHINE (INP_act_shine)

The status parameter INP_act_shine is defined as the actual INP against SHINE under following specific
conditions:
• Assuming impulse noise protection against REIN equal to INP_min_rein
• Assuming EFTR ≥ ETR.
It shall be calculated by the transmitter during initialization and showtime during the L0, L2.1N, L2.1B and
L2.2 link states and updated upon OLR.
The status parameter INP_act_shine shall be represented as a 16-bit unsigned integer expressing the value
in symbol periods in steps of 1 symbol period.
The valid range is from 0 to 2 046.

A special value 2 047 indicates a value of 2 047 or higher.
A special value 2 –1 indicates that the parameter is undetermined.
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All other values are reserved by ITU-T.
The status parameter INP_act_shine shall be mapped on the reporting parameter ACTINP. The downstream
and upstream values shall be reported in the DPU-MIB.
During the L3 link state (see Figure 12-1), the values of the last update are available in the DPU-MIB, until
the FTU-O transitions to the O-INIT/HS state, at which time the values may become "undetermined".

11.4.1.1.8 Actual INP against REIN (INP_act_rein)
The status parameter INP_act_rein is defined as the actual INP against REIN under the following specific
conditions:
• Assuming impulse noise protection against SHINE equal to INP_min_shine,
• Assuming EFTR ≥ ETR.

It shall be calculated by the transmitter during initialization and showtime during the L0, L2.1N, L2.1B and
L2.2 link states and updated upon OLR.

The status parameter INP_act_rein shall be represented as an eight-bit unsigned integer expressing the
value in symbol periods in steps of one symbol period.

The valid range is from 0 to 62.
A special value 63 indicates a value of 63 or higher.
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A special value 2 -1 indicates that the parameter is undetermined.
All other values are reserved by ITU-T.

The test parameter INP_act_rein shall be mapped on the reporting parameter ACTINP_REIN. The
downstream and upstream values shall be reported in the DPU-MIB.

During the L3 link state (see Figure 12-1), the values of the last update are available in the DPU-MIB, until
the FTU-O transitions to the O-INIT/HS state, at which time the values may become "undetermined".

11.4.1.1.9 Error-free bits counter
This is a near-end counter counting the number of error-free bits passed over the  reference point at the
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receiver, divided by 2 . Error-free bits are DTU payload bits originating from DTUs of the normal DTU type
(see clause 8.2.1.3) that cross the  reference point at the receiver.

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