User's Manual
40mW ACS User Guide Technical Introduction iv
PAS System
Subscribers
Erlang
Traffic
Capacity
Number of ACS
10
5
6
300
200
100
8
4
0.899(erl)
18 Subs
£º
Non-group Control Operation
£º
Group Control Operation
Note
£º
GOS = 5%
0.05Er/Subscriber
2
1
3 5 7
50
400
500
0
15
20
25
1.798(erl)
36 Subs
3.988(erl)
80 Subs
2.697(erl)
54 Subs
7.076(erl)
141 Subs
3.596(erl)
72 Subs.
14.31(erl)
286 Subs.
4.495(erl)
90 Subs.
10.633(erl)
213 Subs.
5.394(erl)
108 Subs.
18.08(erl)
361 Subs.
6.293(erl)
126 Subs.
7.197(erl)
144 Subs
.
21.094(erl)
422 Subs.
25.723(erl)
515 Subs.
Figure3-4 Subscribers per ACS in Group and Non-group Control
The deployment of ACSs are decided by the subscribers distribution:
z In the area consist of clusters of small populations. Non-group method (i.e.
Stand-alone ACS control mode) is introduced to use.
z In the area of high-density populations. Group control mode is highly
recommended to use.
3.3 Air Interface
Each ACS provides one C-channel and 3 T-channels.