Data Sheet

196
9.1.8. Examples of map building and beacons’ placement
To make it possible for beacon to switch from the current submap to the
neighboring one, the uniqueness condition for the frequencies of neighboring
submaps is required, i.e. for any submap, all adjacent submaps must not have
repeating sets of frequencies + jitter codes + TDMA sequence, it should be
unique set for every submap.
How to decipher the notation below:
Sets of frequencies:
Example 1:
In this example, submap1 has two adjacent submaps with the same
frequencies (19-25kHz) – It is INCORRECT.
Example 2:
In this example, sets of frequencies are: 19-31kHz, 31-45kHz and 45-19kHz,
while there are no repetitions in adjacent submaps, while further construction
of submaps using the same frequencies is allowed, i.e. 19-31kHz, 31-45kHz,
45-19kHz, 19-31kHz, 31-45kHz, 45-19kHz, because in this case, repetition
does not occur – It is CORRECT.
19(j0, T1)kHz
25kHz(j0, T1)
31kHz(j0, T1)
45kHz(j0, T1)
19kHz(j0, T1)
25kHz(j0, T1)
Submap0
Submap1
Submap2
The same frequency sets
The same jitter codes for beacons
The same TDMA sequence
Submaps the same - INCORRECT
19kHz(j0, T1)
31kHz(j0, T1)
45kHz(j0, T1)
19kHz(j0, T1)
Submap0
Submap1
Submap2
Different frequency sets
The same jitter codes for beacons
The same TDMA sequence
Submaps differ - CORRECT
19kHz beacon, jitter=0, TDMA 1
19kHz(j0, T1)