User's Manual

2-30
BreezeACCESS 4.0 Operations and Administration
Manual Revision: 1.01
(Index=N where N is the number of channels in the
sequence) will result in the first channel (Index=1).
Example: Enhanced Scrambling, N=8, Spanning Factor=3:
Table 2-4: Hopping Shift Implementation, Enhanced Scrambling (N=8, Spanning
Factor=3)
If for example the defined hopping frequencies are 5730,
5740, 5750, 5760, 5770, 5780, 5790, 5800, then the
frequencies of the actual hopping sequences are:
Table 2-5: Actual Hopping sequences, Enhanced Scrambling (N=8, Spanning
Factor=3)
The following formula can be used for calculating the actual
hopping sequence:
P
S
(j)={[P
0
(j)+S-1]mod(N)}+1
Where:
S=Hopping Shift
Hopping Shift Actual Sequence Indexes
0 (basic sequence) 1, 4, 7, 2, 5, 8, 3, 6
1 2, 5, 8, 3, 6, 1, 4, 7
2 3, 6, 1, 4, 7, 2, 5, 8
3 4, 7, 2, 5, 8, 3, 6, 1
4 5, 8, 3, 6, 1, 4, 7, 2
5 6, 1, 4, 7, 2, 5, 8, 3
6 7, 2, 5, 8, 3, 6, 1, 4
7 8, 3, 6, 1, 4, 7, 2, 5
Hopping
Shift
Hop#1 Hop#2 Hop#3 Hop#4 Hop#5 Hop#6 Hop#7 Hop#8
0 5730 5760 5790 5740 5770 5800 5750 5780
1 5740 5770 5800 5750 5780 5730 5760 5790
2 5750 5780 5730 5760 5790 5740 5770 5800
3 5760 5790 5740 5770 5800 5750 5780 5730
4 5770 5800 5750 5780 5730 5760 5790 5740
5 5780 5730 5760 5790 5740 5770 5800 5750
6 5790 5740 5770 5800 5750 5780 5730 5760
7 5800 5750 5780 5730 5760 5790 5740 5770