121787215 Training Doc LTE ERAN2 1 Hardware Introduction (1)

PowerPoint PresentationThe equipment form and hardware structure of eRAN2.1
Typical installation scenarios of the eRAN2.1 equipments
Auxiliary equipment of eRAN2.1
Chapter 2 LTE eNodeB V2.1 Product Forms and Modules
Chapter 3 Specifications of LTE eNodeB V2.1
Chapter 4 Auxiliary Equipment
Contents
MME: Mobility Management Entity
S-GW: Serving Gateway
UE: User Equipment
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As the radio access equipment in the LTE system, the eNodeB manages the air interface, provides radio access for LTE subscribers, and performs Radio Resource Management (RRM) functions such as access control, mobility control, and UE resource allocation. Multiple eNodeBs constitute an Evolved Radio Access Network (eRAN) system.
The Evolved Packet Core (EPC) consists of MMEs and S-GWs or P-GWs. The MME performs mobility management and session management of UEs. The P-GW processes IP data services, including IP address allocation and billing. The S-GW forwards data between the eNodeB and the P-GW.
HUAWEI TECHNOLOGIES Co., Ltd.
High Throughput
4*2MIMO at the downlink
2*2 MU-MIMO at the uplink
2/4-antenna receive diversity at the uplink
Large Capacity
Supporting up to 12 cells at a single base station
Supporting up to 3600 users in activate state at a single base station
Supporting flexible frequency bandwidths: 1.4/3/5/10/15/20MHz
Good Compatibility
Features
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Distributed eNodeB DBS3900
Indoor eNodeB BTS3900
Three standardized modules shared by all eNodeB portfolio
Micro eNodeB
Simultaneous 2G/3G/4G operation
Multi-modal RRU 60W/4C
Chapter 2 LTE eNodeB V2.1 Product Forms and Modules
Contents
Section 1 Product Forms of V2.1
Section 2 Product Modules of V2.1
Section 3 Cable Connections of Modules
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LRFU
Dimensions (mm)
900 *600* 450 mm (H * W * D) (excluding base 40*600*450mm)
Weight
Empty cabinet ≤ 70 kg Cabinet in 3 x 20MHz 2T2R configuration ≤ 120 kg Cabinet in full configuration ≤ 160 kg
Capacity
1BBU + 6RFU
Power supply
–48 V DC, Voltage range: –38.4 V DC to –57 V DC +24 V DC, Voltage range: +21.6 V DC to +29 V DC 220 V AC single-phase and three-phases power cable
Maximum input current
-48V67A +24V131A 220VAC single-phase16A 220VAC three-phases6A
Operation temperature
Protection level
DCDU
APM30H
DCDU
APM30H
IBBS200D
TMC11H
BBU3900
LRRU
MRRU
3MRRU
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The BBU3900 adopts the modular design. It includes a control subsystem, a transport subsystem, and a baseband subsystem. In addition, the clock module, power module, fan module, and CPRI module ensure the normal running of the BBU3900.
Logical Structure of the BBU3900
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Control Subsystem
The control subsystem manages the entire eNodeB system in terms of OM and signaling processing.
The OM includes the configuration management, fault management, performance management, and security management.
In signaling processing, the E-UTRAN signaling is processed, which involves the air interface signaling, S1 interface signaling, and X2 interface signaling.
Transport Subsystem
The transport subsystem provides ports for data communication between the eNodeB and the MME/S-GW. It also provides the OM channel for connection to the Operation and Maintenance Center (OMC).
Baseband Subsystem
The baseband subsystem consists of the uplink processing module and downlink processing module. The subsystem processes user plane protocols over the air interface, which involves uplink and downlink scheduling and uplink and downlink data processing.
The uplink processing module performs signal reception, decoding and demodulation, and packing over each uplink channel and performs measurements on the uplink channel according to the result of uplink scheduling. In addition, the module transmits the received uplink data packets to the MME/S-GW through the transport subsystem.
The downlink processing module performs data packing, coding and modulation, multi-antenna processing, framing, and transmission processing over each downlink channel according to the result of downlink scheduling. The module receives traffic data from the transport subsystem and transmits the processed signals to the CPRI module.
Clock Module
The clock module provides the Global Positioning System (GPS) clock, IEEE 1588V2 clock, clock over Ethernet, and clock over IP.
NOTE:
The clock over IP is a Huawei proprietary clock, which is similar to the IEEE 1588V2 clock. If the IEEE 1588V2 clock is used, related transmission devices must support IEEE 1588V2 protocols. If the clock over IP is used, related transmission devices are not required to support the IEEE 1588V2 protocols.
Power Module
The power module converts +24 V DC or -48 V DC power into the power required for boards and modules of the BBU3900 and provides ports for transmission of external monitoring signals and eight dry contact signals.
Fan Module
The fan module controls the fan speed and monitors the temperature of the module. It performs heat dissipation for the BBU3900.
CPRI Module
The CPRI module receives uplink baseband signals from the RRU and transmits downlink baseband signals to the RRU, thus implementing communication between the RRU and the BBU.
Weight
Power supply
–48 V DC, Voltage range:–36V DC to –57 V DC
Power consumption
FE/GE
10Mbit/s or 100Mbit/s
FE/GE adaptive signals
FE/GE signals that can be automatically identified
Power signals
BTSCANBUS
BBUCANCANBUSFECPUCAN
CAN
7EEPROM
9
10
11
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Functions
The board performs the functions of main control, clock signal transmission, message exchange, and GPS clock synchronization.
It provides two FE/GE adaptive RJ45 ports and two FE/GE SFP ports.
Configuration
Redundancy Support
1+1 backup. When one card is faulty, another card can restart within 2 minutes.
LMPT Board (LTE Main Processing & Transmission unit)
RUN
Green
Always off
Flash at the interval of one second
The board works properly.
The board is loading software.
ALM
Red
ACT
Green
Always off
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Functions
LBBP processes baseband signals, implements the functions at the PHY and MAC layers, and supports the Common Public Radio Interface (CPRI).
A LBBPc is designed to support 3*20 MHz 2T2R/1*20 MHz 4T4R or 6*10 MHz 2T2R/3*10 MHz 4T4R sectors .
Configuration
1- 6 LBBPs are configured, depending on the actual channel bandwidth per sector.
Redundancy Support
LBBP supports cell level resource backup, that is, when one LBBP is out of work, the cells associated with it are moved to other available LBBPs.
RUN
Green
Always off
The board is loading software.
ALM
Red
ACT
Green
Always off
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Functions
Providing BTS synchronization clock information for the main control transport board
Providing synchronization time information for the lower-level BBU to implement BBU clock cascading
Providing BITS clock, RGPS, GPS/GLONASS dual-satellite clock configuration when 1PPS is required
Ports
Interface
Connector
Description
4. M-1PPS port
SMA coaxial connector
Receives 1PPS signals
5. BITS port
SMA coaxial connector
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4HP8HPGPS/GLONASS
Always off
Software is being loaded, or the board is not configured.
ALM
Red
Always on
An alarm is generated, and the board needs to be changed.
An alarm is generated. The alarm may be caused by a fault of relevant board or port. Therefore, whether the board needs to be changed awaits further analysis.
ACT
Green
Always off
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Indicators on the board
Always off
Software is being loaded, or the board is not configured.
Flash at the interval of two seconds
The board works in offline status, or is being tested.
ALM
Red
An alarm is reported, indicating that the board is faulty.
Always off
A minor alarm is reported.
A major alarm is reported.
Flash at the interval of 0.125 second
A critical alarm is reported.
ACT
Green
Always off
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The fan module houses the fans.
Implementing heat dissipation for each board and module of the BBU3900
Controlling the fan speed and reporting the fan status to the LMPT
Monitoring the air inlet temperature
Configuration
Redundancy Support
N+1 backup. The fan module is field replaceable. No service outage will happen, if it is replaced within 3 minute.
Fan
STATE
Green
The module is not registered, and no alarm is generated.
The module works properly.
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Functions
UPEU provides power supply for the baseband subrack in Intermediate Bus Architecture (IBA) mode, with an input of –48 VDC and an output of +12 V DC.
Configuration
One or two UPEUs are configured, depending on the actual situation.
Redundancy Support
Indicators
RUN
Green
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The LTE RF is based on modular design.
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AGC

The RRU3201 consists of the following functional modules:
Interface module: The interface module receives downlink baseband data from the BBU, transmits uplink baseband data to the BBU, and forwards data from the cascaded RRUs.
TRX: The TRX has two RX channels and TWO TX channel for RF signals. The RX channel down-converts the receive signals into Intermediate Frequency (IF) signals and performs amplification, analog-to-digital (A/D) conversion, digital down-conversion, matched filtering, and DAGC. The TX channel performs shape filtering of downlink spreading signals, digital-to-analog (D/A) conversion, and up-conversion of RF signals into transmit band signals.
PA: The PA implements the DPD and A-Doherty technologies to amplify low-power RF signals from the TRX.
Duplexer: The duplexer multiplexes receive signals and transmit signals, which enables the receive signals and transmit signals to share the same antenna path. The duplexer also filters receive signals and transmit signals.
LNA: The LNA amplifies the signals received from antennas.
H485*W380*D170
H400*W240*D160
12L/13.5Kg (w/o cover)
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RRU3232 is newly introduced since this version, which support LTE TDD and WiMAX.
RRU3232 works on frequency 2.3G and 2.5G, and supports 4T4R. The maximum output power is 4*20W.
Figure1: RRU exterior
Item
Label
Description
RET
Radio Unit module
2×40W (LTE)
Dimensions (mm)
400*215*140(H*W*D) without cover 400*240*160 (H*W*D) with cover
Weight (Kg) (w/o cover)
13.5kg for each module
GSM 23.1
Operation Temperature ()
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MRFU
LRFU
CPRI
Power consumption
–40°C to +50°C (solar radiation at 1,120 W/m2)
–40°C to +55°C (no solar radiation)
IP65
Input voltage
900M
900M
middle 25
full 75
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Contents
Maximum cells
4x2 MIMO
Up to 6 cells @ 1.4/3/5/10MHz 4x2 MIMO Up to 3 cells @ 15/20MHz 4x2MIMO
2x2 MIMO
Maximum bandwidth in one radio unit
20MHz
Maximum configuration
4x2 MIMO
6*1.4/3/5/10MHz 4x2 MIMO: 1 BBU with 2LBBP + 12RRU configuration 3*15/20MHz 4x2 MIMO: 1 BBU with 3LBBP + 6RRU configuration
2x2 MIMO
12*1.4/3/5MHz 2x2 MIMO: 1 BBU with 2LBBP + 12RRU configuration 6*10MHz 2x2 MIMO: 1 BBU with 1LBBP + 6RRU configuration 6*15/20MHz 2x2 MIMO: 1 BBU with 2LBBP + 6RRU configuration
Typical configuration
4x2 MIMO
3*5/10MHz 4x2 MIMO: 1 BBU with 1LBBP + 6RRU configuration 1*15/20MHz 4x2 MIMO: 1 BBU with 1LBBP + 2RRU configuration
2x2 MIMO
6*5/10MHz 2x2 MIMO: 1 BBU with 1LBBP + 6RRU configuration 3*15/20MHz 2x2 MIMO: 1 BBU with 1LBBP + 3RRU configuration
Per eNodeB maximum throughput
Scheduled users
bandwidth = 5MHz/cell
3600
Contents
Table: DC power distribution functions of the DCDU-03
Dimensions: 200mm(D)*19 inch (W)*1U(H)
Weight: 4kg
Input voltage: -48V
LOAD6 to LOAD8
12 A
12 A
6
Separated macro base station in the -48 V DC power supply/Transmission cabinet
LOAD6
BBU
6 A
Power distribution
Lightning protection
Temperature control
Backup power
APM30H (Advanced Power Module)
Base dimensions (mm)
Weight
AC input
Input voltage
176 V AC to 290 V AC (3-phase) 176V AC to 290 V AC (single-phase) 110 V AC dual-live-wire
Frequency of input voltage
DC output (Application for distribution station)
Output voltage
DC outputs
20 A x 6; 25 A x 2; 15A x 4; 5A x 4
Space for user equipment
5 U
Operation temperature
Protection level
Function
Weight
Power supply
Built-in battery capacity
Transmission Cabinet TMC11H
TMC11H can be configured when more space is required for transmission equipment.
The cabinet, used outdoors, is small in size and easy to transport.
TMC11H can provide a maximum of 11 U space for customer equipment.
DCDU and HEUA are configured inside to monitor the fans and reports the related alarms.
Item
Specification
Weight
Power supply
Maximum input current
Heater
Outdoor RF cabinet
The outdoor RF cabinet, with the APM30 cabinet stacked on it, serves the power distribution, surge protection, and other protection for the RFU and the BBU3900.
The outdoor RF cabinet works in direct ventilation to dissipate heat.
It can hold three LRFUs together with batteries. It can also hold up to six LRFUs.
Item
Specification
Base dimensions
Weight
Capacity
Power supply
Power consumption
Protection level
-48V Cabinet
The indoor macro cabinet BTS3900L LTE houses the BBU3900 and RFUs.
BTS3900L provides the functions such as power distribution, heat dissipation, and surge protection.
A single BTS3900L LTE can be installed with a maximum of 12 RFUs.
Item
Specification
Dimensions
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Chapter 2 LTE eNodeB V2.1 Products Forms and Modules
Contents
DBS3900 LTE Installation Scenarios
DBS3900 LTE can be installed flexibly to fit customer’s site environment.
Feeder
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(BBU3900 + RRU + indoor centralized mounting rack)
The BBU3900 and RRU are installed on a specific indoor centralized mounting rack next to the antenna. The RRU can also be mounted on the metal post.
The BBU3900 and LRRU can share the power input with the 2G/3G network.
Installation Scenario of DBS3900 LTE Application
Indoor centralized
mounting rack
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The BBU and transmission equipment are installed inside the APM30H. The RRU is installed on the tower next to the antenna to reduce feeder loss, thus improving system coverage.
The IBBS battery cabinet can meet the increasing requirement for power backup.
The TMC11H transmission cabinet can expand the cabinet installation space to 11 U.
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One IBBS200D/IBBS200T can support 50AH or 92AH
AC without backup
AC with backup
-48V DC power
Installation Scenario of BTS3900 LTE Application
Applies to indoor centralized installation to replace traditional macro site installation
Compact size, light weight, small space, and large and flat internal installation space
Reducing the maintenance cost for tower installation
Flexible cabinet combination: single cabinet; two combined cabinets; two overlaid cabinets (when the parallel space is limited)
Single BTS3900 LTE cabinet
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Applies to centralized installation to replace traditional macro site installation
Compact size, light weight, and easy transportation
The BBU3900 is installed in the APM30H power cabinet or TMC transmission cabinet, and the LRFU is installed in the RFC radio frequency cabinet.
Working voltage: 220V AC/110AC
TMC/APM30H+RFC
Applies to centralized installation to replace traditional macro site installation
Compact size, light weight, and easy transportation
The BBU3900 is installed in the APM30H power cabinet, and the LRFU is installed in the RFC radio frequency cabinet.
Working voltage: 220V AC/110AC
Internal battery backup: one IBBS battery cabinet, -48V 184Ah Li battery / two IBBS battery cabinets, -48V 368Ah Li battery
APM30H+RFC+IBBS

121787215 Training Doc LTE ERAN2 1 Hardware Introduction (1)

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