|
|
Description:
|
hwVOPVirtualNoiseConfProfTxRefVnDs OBJECT-TYPE
SYNTAX Xdsl2LineTxRefVnDs
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This configuration parameter defines the downstream transmitter referred virtual noise.
The TXREFVNds shall be specified through a set of breakpoints.
Each breakpoint shall consist of a subcarrier index t, with a subcarrier spacing of 4.3125 kHz,
and a noise PSD level (expressed in dBm/Hz) at that subcarrier.
The set of breakpoints can then be represented as: [(t1,PSD1), (t2, PSD2), ... , (tN, PSDN)].
32 groups can be configured at most, and 3 bytes for each group. The first two bytes represent tone index,
the 3th byte represents the configured PSD value. The relation between configured PSD value and real PSD
value is: REAL PSD = (CONFIGURED PSD + 80) * (-0.5dBm/Hz)."
REFERENCE
"ITU-T G.997.1, paragraph #7.3.1.7.3 (TXREFVNds)"
|
|
|
|
