Medium Access Control (MAC) and Physical Layer (PHY) - CISE

4-June-07 P1901_PRO_016_r0
is set to zero, a special bit extraction is performed to obtain the word called t’, including the insertion of two zeroes
in position 0 and 2 of the final t’ word to be introduced in the codec. Similarly, when only one of the two subcarriers
is set to one, the word t’ includes the insertion of one zero in position 2. If both subcarriers are set to one, the word
t’ includes the insertion of two zeroes in position 0 and 2. Note that combinations of one subcarrier with 1 and
another subcarrier with 0 are not allowed.
The extracted group will be noted as t’ and calculated from the following table:
Condition Binary word/comment
x ≥ 2 y ≥
x = 0 y ≥
x ≥ 2 y =
x = 1 y ≥
2
2
0
2
x ≥ 2 y = 1
( t t ... t t t )
t z z−1
´ = t Where
Submission page 49 UPA-OPERA
4
z '= z = x + y −1
( t t ... t 0 t 0)
t´ z z−1
2 1
= Where
z ' = z + 2 = y + 1
( t t ... t 0 t 0)
t´ z z−1
2 1
= Where
z ' = z + 2 = x + 1
( t t ... t 0 t )
t z z −1
´ = t Where
3
z ' = z + 1 = x + y
( t t ... t 0 t )
t z z −1
´ = t Where
3
z ' = z + 1 = x + y
x = 1 y = 1
( 0 0)
t t = Where
´ 1
3
2
2
2
1
1
1