ZXC10 BTSB System Overview
CBB_H03_E2
ZTE University
CDMA BSS Course Group
Outline
ZXC10-BTSB Solution
ZXC10-BTSB AE
ZXC10-BTSB I1
ZXC10-BTSB I2
ZXC10-CBTS I1,I2,O1
ZXC10-MBTS
ZTE BSSB BTS Solutions
ZTE BTS consists of three subsystems− Baseband Digital Subsystem (BDS)− Radio Frequency Subsystem (RFS) − Power Subsystem (PWS)
Different types of BTSs are implemented by distinct BDS or RFS.
I1 BTS = all-IP BDS + all-IP RFSI2 BTS = all-IP BDS + local HIRS RFS/remote RFSAE BTS = (HIRS + all-IP) BDS + HIRS RFSCBTS = all-IP BDS + all-IP RFSMBTS(all-ip),MBTS(HIRS)
Outline
ZXC10-BTSB Solution
ZXC10-BTSB AE
ZXC10-BTSB I1
ZXC10-BTSB I2
ZXC10-CBTS I1,I2,O1
ZXC10-MBTS
ZXC10-BTSB AE
BDS
RFS
BTSB AE Specifications
BTS Dimensions
Appearance dimension: W×D×H = 750mm×600mm×1800 mm
Installation base dimension : W×D×H = 750mm×600mm×100 mm
BTS Working VoltadgeBSC and BTS Input DC:-48VVoltage floating range : -40V~-57VOther input voltage type:+5V,+27V,±12V
BTSB AE features
Composed of mixed HIRS+IP BDS and usually local HIRS RFS.
Supporting at most 12 carrier sectors with two racks.
Compatible with both ZXC10-BSCB (all-IP) and ZXC10-BSC (HIRS).
No GCM in the BDS so that Time Frequency Subsystem (TFS) is provided in RFS for system clock and frequency generation, whichincludes GPSTM, FDM and TCM.
SIM is required for transferring clock from HIRS part to IP part.
Typical BDS Configuration of AE
CHM
RI
M
CHM
CHM
CCM
CCM
AE B D S IP +H IR S
DSM
SNM
SAM
SI
M
RFI
M
CHM
CCM
CCM
CDSU
CHM
RFI
M
CHM
PSMB
PSMB
CHM
RI
M
CHM
CCM
CCM
A E B D S IP
DSM
SNM
SAM
SI
M
PSMB
CHM
A E B D S H IR S
SAM
RFI
M
CHM
CCM
CCM
CDSU
CHM
RFI
M
CHM
PSMB
PSMB
Power Supply Structure
PSMD
PPM
PPM
PPM
PPM
PPM
PSMC
PSMC
P SMB
PSMB
EBDS
-48V IN
-48V OUT
+5V +5V
HPA X6
+27V
TRX X6
RFE X6
FDM
-12V+12V
Typical BTSB AE and Its Principle
RFE(Alpha)
TRX
RFCM
EBDS机框
HPA
TRX
RFCM
HPA
TRX
RFCM
HPA
T
X
T
X
T
X
RFE(Beta)
RFE(Gamma)
R
X
0
R
X
1
R
X
0
R
X
1
R
X
0
R
X
1
Outline
ZXC10-BTSB Solution
ZXC10-BTSB AE
ZXC10-BTSB I1
ZXC10-BTSB I2
ZXC10-CBTS I1,I2,O1
ZXC10-MBTS
ZXC10-BTSB I1
BDS
RFS
ZXC10-BTSB I1 Features
Designed based on IP platform. Two separate cabinets: BDS cabinet and RFS cabinet. Two types of RFSs: local RFS and remote RFS.
Providing a large system capacity. 1 BDS can support 1 local RFS and 6 remote RFSs, with up to total 24 carrier sectors
Supporting super BTS configuration: 1 master BDS+4 slave BDSs.
Supporting comprehensive services and flexible configuration
I1 Baseband Digital Subsystem (BDS)
Providing the interfaces with BSC and BTS
With the function of baseband signal processing, such as channel coding/decoding, baseband modulation/demodulation, and spreading/despreading.
Providing system clock and frequency for transceiver use.
Supporting 1 Master BDS and 4 Slave BDS for the super BTS configuration.
Including front boards: DSM, CCM, CHM, GCM, SNM, RIM, SAM; and rear boards BIM0~BIM6 and BIM10.
Radio Frequency Subsystem
Modulating baseband signals onto RF carriers
Providing linear amplifier for forward signals and low noise amplifier for reverse signals.
Supplying ports for antenna
Composed of 3 shelves: TRX shelf, LPA shelf and RFE shelf.
Consisting boards/modules: TRX, BTM, TSM, RSM, LPA, and RFE.
Working Principle
Sign
alin
g
Sign
alin
ToR
FSs
......
......
......
ToR
FSs
ToR
FSs
Fibe
rFi
ber
Fibe
r
Power Subsystem (PWS)
PWS implements the AC-to-DC conversion, AC/DC power distribution & monitoring, and the storage battery management.
PWS Principle
Outline
ZXC10-BTSB Solution
ZXC10-BTSB AE
ZXC10-BTSB I1
ZXC10-BTSB I2
ZXC10-CBTS I1,I2,O1
ZXC10-MBTS
BTSB I2 features
BDS of I2 used almost the same boards as those used in I1 BDS, such as CCM, CHM, DSM, GCM, RIM.
Additional CDM (Clock Distribution Module) is used to further convert the GCM output 30MHz into two frequencies for TRX use: 12MHz for 800MHz and 850MHz frequency band; and 10MHz for 450MHz, 1.9GHz and 2.1GHz frequency band.
BIM9 board is plugged to connect the BDS - RFS and 1st rack with 2nd rack and BTS-BSC.
I2 BDS + local RFS + max. 6 remote RFS, so that 1 BDS supports 12 carrier sectors.
I2 BTS consists of at most 2 racks, i.e., 2 BDS, providing 24 carrier sectors capacity.
ZXC10-BTSB I2 Principle
Outline
ZXC10-BTSB Solution
ZXC10-BTSB AE
ZXC10-BTSB I1
ZXC10-BTSB I2
ZXC10-CBTS I1,I2,O1
ZXC10-MBTS
ZXC10 CBTS I1 features
ZXC10 CDMA2000 Compact Base Transceiver Station - I1 also referred to as CBTS I1.
ZXC10 CBTS I1 features
CBTS I1 comprises two shelves; upper shelf contains 17 slots, having BDS and TRX boards. The lower shelf contains RFE, Linear Power Amplifier (LPA) and Power Amplifier Interface Module (PIM).
CBTS I1 is an economical BTS with basic functions. A single BS supports four carriers and three sectors at most, consuming 10 W/20 W power on average per carrier/sector. It is applicable to areas with heavy traffic and several carriers.
ZXC10 CBTS I2
ZXC10 CDMA2000 Compact Base Transceiver Station- I2 also referred to as CBTS I2.
ZXC10 CBTS I2 features
CBTS I2 cabinet comprises two racks that include CBTS I2 rack and PSWB rack, and each rack contains different boards. There are three shelves in CBTS; RFE/DPA shelf, FAN shelf, TRX/BDS shelf
CBTS I2 is an economical BTS with basic functions. A single CBTS I2 rack can support a maximum of 12 carrier-sectors for EV-DO and maximum of 24 carrier-sectors for 1X . It is applicable to areas with heavy traffic and several carriers.
ZXC10 CBTS O1
ZXC10 CDMA2000 Compact Base Transceiver Station – O1 also referred to as CBTS O1.
ZXC10 CBTS O1 features
CBTS O1 cabinet consists only one CBTS rack, and rack contains different boards. There are three shelves in CBTS O1; RFE/DPA shelf, FAN shelf, TRX/BDS shelf.
CBTS O1 is an outdoor BTS comprising single CBTS rack. A single BS supports 12 carrier-sectors for EV-DO application and 24 carrier-sectors for 1x application. It features wide coverage and applies to suburbs, plains, scenic spots, highways and railways.
Outline
ZXC10-BTSB Solution
ZXC10-BTSB AE
ZXC10-BTSB I1
ZXC10-BTSB I2
ZXC10-CBTS I1,I2,O1
ZXC10-MBTS /RBTS
ZXC10 MBTS/RBTS
With the continuous emergence of new technologies, intelligent Base Transceiver Stations (hereinafter called BTS for short) with small size, low power consumption, low cost and high reliability become the development trend
Micro BTS Intoduction
ZXCBTS M800ZXCBTS M802ZXCBTS M190ZXCBTS M191ZXCBTS M192
ZXC10-BSC
Mobilestation CDMA micro-BTS CDMA BSCUm interface Abis interface
ZTE CORPORATION develops ZXCBTS CDMA micro base transceiver station and remote station products.
ZTE CORPORATION develops ZXCBTS CDMA micro base transceiver station and remote station products.
ZXC10 Micro /Remote BTS Features
Advanced design: The system integrates advantages of the existing CDMA micro base transceiver station and RF remote station products of foreign countries.
Flexible configuration: ZXCBTS CDMA micro-BTS and remote stations can be combined to implement multiple configurations.
The micro-BTS could be configured with a built-in 155M SDH optical transmission subsystem to save users’ investment and improve the construction speed.
Hardware of Micro-BTS
1
2
3
4
5
6
7
8
9 10 11
1 Baseband processing module, BDM board; 2 Timing & frequency module, GPSTM;3 power, MPD; 4 diversity filter, MDIV; 5 Low-noise amplifier, MLNA; 6 High power amplifier, MPA; 7 Tx/Rx duplexer, MDUP; 8 power arrestor; 9 Antenna feeder arrestor; 10 E1 arrestor; 11 optical transmission module;
1 Baseband processing module, BDM board; 2 Timing & frequency module, GPSTM;3 power, MPD; 4 diversity filter, MDIV; 5 Low-noise amplifier, MLNA; 6 High power amplifier, MPA; 7 Tx/Rx duplexer, MDUP; 8 power arrestor; 9 Antenna feeder arrestor; 10 E1 arrestor; 11 optical transmission module;
Hardware of Remote-Station
The structure is very similar to micro-BTS!
Just no baseband signal processing , GPSTM inside remote station
The structure is very similar to micro-BTS!
Just no baseband signal processing , GPSTM inside remote station
R FM
MPD
MDIV
MLNA|
MLNA2
MPA
MDUP
M LN AM P A
光纤M TR X
R FE -A N T1
TX
R X 0
R X 1
R FE -A N T0
门Box cover