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Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
GSM BTS312
Ha rdwa re Structure
Page2
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Objective s
Upon completion of this course, you will be able to:
Know the functions and features of BTS
Master the BTS hardware structure
Master the signal processing of BTS
Page3
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Re fe re nces
BTS312 User Manual
BTS3.0 User Manual
Page4
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Contents
Overvie w
System Components
Signal Processing
Antenna and Feeder System
Page5
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Location
MS: Mobile Station
BTS: Base Transceiver Station
OMC: Operation and Maintenance Center
HLR: Home Location Register
EIR: Equipment Identity Register
MSC: Mobile Switching Center
VLR: Visitor Location Register SMC: Short Message Center
VM: Voice Mailbox
BSC: Base Station Controller
AUC: Authentication Center
PSTN
ISDN
PSPDN
Um Interface
BTS
BTS
BTS
BTS
OMC
HLR/AUC/EIR
BSC
MSC/VLR
SMC/VM
A Interface
MAP
M
A
P
TUP,ISUP
MS
MS
MS
Page6
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Fea tures a nd Functions
High integration and low power consumption
15 radio carriers at the Abis sharing an E1 for transmission
(15:1)
Support various transmission modes and complex
topologies,
e.g. SDH, E1, microwave, satellite etc.
1-minute fast startup
Page7
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Fea tures a nd Functions
Support GSM900,DCS1800,EGSM and RGSM
Support GSM PHASE 1 、 PHASE 2 and PHASE 2+
Support GPRS and EDGE
Support baseband hopping and RF hopping
Support FR, HR, EFR and AMR
Support A5/1 and A5/2 encryption/decryption
Page8
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Hardwa re Structure
DATA_BUS/CONTROL_BUS/TIMING_BUS
External
control
External
alarm
E1
TMU
Opt. fiber
xDSL
TEU
PMU
FH_BUS
CDU
PSU
TRX
TRX
TRX
Signal Processing Unit
Common Unit
CDU
CDU
antenna
antenna
antenna
Antenna Feeder Unit
TES
Page9
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Ca binet and Boards
CDU: Combiner & Divider Unit
TRX: Transceiver
PMU: Power Monitoring Unit
TMU: Timing/Transmission &
Management Unit
PSU: Power Supply Unit
TDU: Time Distribution Unit
TES: Transmission Extension Power
Supply Unit
TEU: Transmission Extension Unit
FAN BOX
SWITCH BOX
FAN BOX
AIR BOX
AIR BOX
P
S
U
P
S
U
P
S
U
P
S
U
P
S
U
P
S
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P
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T
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S
T
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T
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U
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T
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T
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T
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D
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C
D
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T
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T
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T
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T
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C
D
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C
D
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TDU
Page10
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Contents
Overview
Sys tem Components
Signal Processing
Antenna and Feeder System
. All rights reserved.
Fea tures a nd Functions
Support GSM9 00,DCS1800,EGSM and RGSM
Support GSM PHASE 1 、 PHASE 2 and PHASE 2+
Support GPRS and EDGE
Support. www.huawei.com
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
GSM BTS312
Ha rdwa re Structure
Page2
Copyright © 2006 Huawei Technologies Co., Ltd. All
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