Instruction manual

2-52
BreezeACCESS Version 4.3 Operations and Administration
Manual Revision: 4.0
Table 2-10: Actual Hopping sequences, Standard Scrambling (N=6)
The following formula can be used to calculate the actual
hopping sequence:
P
S
(i)=P
0
[(i+s-1)mod(N)+1]
Where:
S is the hopping shift
N=number of channels in the sequence (modulus)
P
S
(i) is element number i in the actual sequence with
hopping shift s
P
0
(i) is element number in the basic hopping sequence (s=0).
For example, in the basic sequence with N=6:
P
0
(1) =1
P
0
(2)=3
P
0
(3)=5
P
0
(4)=2
P
0
(5)=6
P
0
(6)=4
For a shift of 3, the actual sequence is:
P
3
(1) =P
0
[(1+3-1)mod6+1]=P
0
(4)=2
P
3
(2) =P
0
[(2+3-1)mod6+1]=P
0
(5)=6
P
3
(3) =P
0
[(3+3-1)mod6+1]=P
0
(6)=4
P
3
(4) =P
0
[(4+3-1)mod6+1]=P
0
(1)=1
P
3
(5) =P
0
[(5+3-1)mod6+1]=P
0
(2)=3
P
3
(6) =P
0
[(6+3-1)mod6+1]=P
0
(3)=5
And the actual hopping sequence is 2, 6, 4, 1, 3, 5.
The allowed range for the Hopping shift parameter is from 0
to N-1, where N is the number of hopping frequencies.
The default is 0.
 Hopping Sync (BS-AU only) –Displays the current Hopping Sync
status of the unit and allows defining a new status. When several
AUs that use the same hopping set and different hopping sequences
are co-located, their operation should be synchronized in terms of
Hopping shift Hop#1 Hop#2 Hop#3 Hop#4 Hop#5 Hop#6
0 5730 5750 5770 5740 5780 5760
1 5750 5770 5740 5780 5760 5730
2 5770 5740 5780 5760 5730 5750
3 5740 5780 5760 5730 5750 5770
4 5780 5760 5730 5750 5770 5740
5 5760 5730 5750 5770 5740 5780