1 Selected Topics in Telecommunication Engineering I
504460
29 2558 .
Wireless Communication
2
() (The cellular
concept and frequency planning )
: (Mobile radio propagation I: Large scale path loss )
: (Mobile radio propagation II: Multipath and small scale fading
)
3
() (Modulation
techniques for mobile communications)
(Channel coding for Wireless communications)
(Introduction to Wireless networking)
(Introduction to some wireless communications standards)
4
5
6
1. "2. "" 1 "" 2 "" 3 ""
7
" "" 80 km
8
" 100 "" "
9
()
10
R
11
12
13
Hexagon geometry
14
Hexagon geometry
15
Hexagon geometry
16
Hexagon geometry
17
I
J
Hexagon geometry
18
I J
Hexagon geometry
19
1 32 16 336 N=7
) 1
) 1
)
)
) 336/7 = 48
) 48 x 32 = 1,536
20
2 128 0.8 336 N=7
) 1
) 1
)
)
) 336/7 = 48
) 48 x 128 = 6,144
21
1 2 1 2 4
22
23
24
BSC= base station controller MSC = Mobile Switching Center VLR=
Visitor Location Registor IMEI=International Mobile Equipment
Identity EIR = Equipment Identity Register HLR= Home Location
Register AuC= Authentication Center SIM= Subscriber Identity Mobile
SMSC = Short message service center PSTN = Public Switched
Telephone Network
25
"
1.
26
2.
MTSO
27
3.
MTSO
28
3.
MTSO paging BS BS paging
29
4.
BS MTSO MTSO
30
5.
BS MTSO
31
6.
BS BS
32
33
34
path loss model
path loss model wave propagation
35
36
BSC= base station controller MSC = Mobile Switching Center VLR=
Visitor Location Registor IMEI=International Mobile Equipment
Identity EIR = Equipment Identity Register HLR= Home Location
Register AuC= Authentication Center SIM= Subscriber Identity Mobile
SMSC = Short message service center PSTN = Public Switched
Telephone Network
