Page 843 - 5G Basics - Core Network Aspects

Transport aspects 2

Table 11-41 – Vectoring feedback report configuration descriptor

Parameter Bit Byte Description
N_band [7:4] 0 The number of configured vectored
bands in the range from one to eight
represented as an unsigned integer.

Padding [3] As defined in clause 10.3.2.3.1.
Rounding [2] As defined in clause 10.3.2.3.1.
F_block [1:0] Block size, encoded as (Note):
002 – F_block = 1
012 – F_block = 2
102 – F_block = 4
112 – Reserved for use by ITU-T

Vectored band 1 1-2 See Table 11-42
control parameters
. . . . . . …..
Vectored band 2 × N_band – 1 to 2 × N_band See Table 11-42
N_band control
parameters
Per-element VF [Nprobe_ds:0] 2 × N_band+1 to This field shall not be present if the
report 2 × N_band+ceiling(Nprobe_ds/8) reporting mode bit in Table 11-40 is set
to 0 (applicable during showtime) or if
the descriptor is included in the O-
VECTOR-FEEDBACK message (applicable
during initialization, see Table 12-28).
If present, this field represents a bit
map indicating reporting mode per
probe sequence element.
The LSB indicates sample type to be
sent on the first element of the
downstream probe sequence, the MSB
indicates sample type to be sent on the
last element. If a bit is set to 0, the
corresponding VFRB shall carry clipped
error samples, if set to 1, the
corresponding VFRB shall carry DFT
output samples (see clause 10.3.2.4.1)
NOTE – F_block has the same value for all vectored bands.

Table 11-42 – Vectored band control parameters

Parameter Bits Byte Description
F_sub [7:4] 0 Sub-sampling rate F_sub as defined in clause 10.3.2.3.1,
represented as an unsigned integer.
L_w [3:0] Length of the VF sample in compressed representation
as defined in clause 10.3.2.3.1, with L_w represented as
an unsigned integer.
B_min [7:4] 1 Parameter B_min as defined in clause 10.3.2.3.1, with
(B_min – 2) represented as an unsigned integer.
B_max [3:0] Parameter B_max as defined in clause 10.3.2.3.1, with
(B_max – 2) represented as an unsigned integer.

833