oxb101220 dbs3900 wimax v300r003 product description issue1

DBS3900 WiMAX Hardware System Page*
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www.huawei.com
WiMAX DBS3900 Product Description
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Copyright © 2010 Huawei Technologies Co., Ltd. All rights reserved.
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Objectives
Upon completion of this course, you will be able to:
Describe WiMAX system networking
Outline DBS3900 WiMAX functions
State the typical networking configuration
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MS/SS The Mobile Station (MS)/Subscriber Station (SS) is the subscriber device that communicates with the BS. A subscriber device may be a fixed terminal, mobile terminal, or USB terminal.
ASN: Access Service Network
BS: The BS receives and transmits radio signals and thus enables the communication between the WiMAX network and the MS. The BS product provided by Huawei is the DBS3900.
ASN-GW: The ASN-GW is a logical entity that performs control functions. The ASN-GW communicates with NEs (for example, the BS) within the ASN and with those within the CSN or other ASNs. The ASN-GW also performs data routing and bridging on the bearer plane. The ASN-GW product provided by Huawei is the WASN9770.
CSN: Connectivity Service Network
AAA: The AAA server is a remote verification server for authentication, authorization, and data value-added services. It provides the remote authentication dial-in user service (RADIUS). The AAA also provides robust agent functions and flexible operations and supports various databases.
PPS: Prepaid Service (PPS) is the service that allows subscribers to pay for the service before using it. The PPS data service is measured by time or data flow. The service traces the status of the service usage, either by time or by data flow, and then deducts the charging fees from the current account balance of the subscriber in real time.
SCP: The Service Control Point (SCP) is the core component of the intelligent network. The SCP stores the subscriber data and service logics. On receipt of query requests from the SSP, the SCP searches the database and decodes messages as required. Based on the call events reported by the SSP, the SCP sets up relevant service logics and sends call control commands to the corresponding SSP, thus enabling intelligent calls.
Confidential Information of Huawei. No Spreading Without Permission
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The NWG defines the following network interfaces:
R1 interface: air interface between the ASN and the MS, defined by the IEEE 802.16 (IEEE P802.16e-2005 and IEEE P802.16-2004)
R2 interface: logical interface between the MS and the CSN, used for carrying EAP messages and DHCP messages of the MS
R3 interface: interface between the ASN and the CSN, used for carrying the signaling messages and services between the FA and the HA
R4 interface: interface between GWs, used for carrying signaling messages and subscriber data in the event of handoffs or R3 relocations
R5 interface: interface between the visited CSN and the home CSN in the event of roaming, or the interface between the AAA proxy and the AAA server
R6 interface: interface between the BS and the GW, used for exchanging signaling messages between the BS and the GW and for setting up R6 tunnels to carry service data of the MS
R8 interface: interface between BSs, used for fast seamless handovers and consisting of a series of protocols on the control and carrying planes
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Remote RF unit: RRU3701C and RRU3702
The RRU3701C and RRU3702 receive and transmit RF signals. Then they process the signals and send them to the BBU3900 or the RF antenna.
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High-Performance Network Coverage
It supports multi-antenna technologies, with which multiple types of gain (such as power gain, space diversity gain, space multiplexing gain, array gain, and interference suppression gain) can be obtained so that coverage is expanded and system capacity is improved.
It supports HARQ, which integrates FEC and ARQ to improve transmission quality and expand coverage.
It supports open loop and closed loop power control to minimize fading effects and interference, thus improving transmission quality.
It supports AMC, and thus the system specifies appropriate modulation and coding modes according to channel quality.
It supports the 64QAM technology.
Reliable Clock Synchronization
Smooth Evolution
Based on Huawei fourth-generation BS platform, the DBS3900 WiMAX supports smooth evolution from IEEE 802.16e to IEEE 802.16m and LTE/+TDD, and thus protecting the operator's investment.
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Dimensions (height x width x depth)
560 mm x 435 mm x 202 mm
Cabinet weight
≤ 20 kg (natural heat dissipation fans)
Power consumption
≤ 280 W
Ambient temperature
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356mm×120mm×480mm
Cabinet weight
≤ 21 kg
Power consumption
≤ 230 W
Ambient temperature
-40°C to +50°C (solar radiation not considered) -40°C to +45°C (solar radiation considered
Relative humidity
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320 mm (12.60 in.) x 135 mm (5.31 in.) x 550 mm (21.65 in.)
Cabinet weight
Power consumption
≤ 500 W
Ambient temperature
-40°C to +50°C (solar radiation not considered) -40°C to +45°C (solar radiation considered
Relative humidity
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2.2 BBU3900 cables
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The BBU3900 is a piece of case-shaped equipment with a height of 2 U and provides eight slots. The external ports are located on the front panel of the BBU3900
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-48 V DC (-38.4 V DC to -57 V DC)
436 mm x 310 mm x 86 mm
Cabinet weight
Empty cabinet (including the FAN and UPEU): ≤ 8 kg [17.64 lb]
Fully-configured cabinet: ≤ 11 kg [24.25 lb]
Power consumption
≤ 300 W
Ambient temperature
Relative humidity
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PHY processing module: The PHY processing module baseband functions at the 802.16e physical (PHY) layer, such as signal encoding/decoding and modulation/demodulation over uplink and downlink channels
MAC processing module: The MAC processing module implements lower MAC layer processing, such as QoS scheduling and PDU encapsulation
Transmission module: The transmission module supports R6 tunnel management and provides service channels over Ethernet links. The system supports two 100 Mbit/s or 1000 Mbit/s electrical Ethernet ports and two 1.25 Gbit/s optical ports
Control module: The control module performs functions such as radio resource management, wireline transmission resource management, service processing at the higher MAC layer, and processing of control signaling messages over the R6 interface
OM module: The OM module realizes the operation and maintenance of the system by providing a 10 Mbit/s or 100 Mbit/s Ethernet port
Clock module: The clock module provides GPS clock signals, GLONASS clock signals, and free-run clock signals for the system
Fan module: Cooling fans are equipped in the system
Power module: The power module converts -48 V DC power input into the required power output
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Module
It is the WiMAX main processing&transmission unit.
Maximum configuration: 2
It is the WiMAX baseband processing and RF interface unit.
It is the universal power and monitoring interface unit.
It is the universal satellite card and clock unit.
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BMPT
Green (LINK): ON means the port is connected and OFF means the port is not connected
Orange (ACT):ON means the data is transmitted or received and OFF means no data is transmitted or received
Optical ports, which are used to connect GW with optical cable
Used to connect the transmission equipment or gateway equipment with FE cable
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The functions of the BMPT are as follows:
Performing OM, such as configuration management, equipment management, performance monitoring, signaling processing, and radio resource management
Controlling each board of the system and providing reference clock for the entire system
Providing the absolute time information and 1PPS reference clock source through the GPS card
Transmitting signaling and service data between the BTS and the ASN-GW
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BMPT (Cont)
Maintenance port
The Ethernet port and serial port share the same physical port, which supports both SNMP and CLI maintenance modes and the serial port commissioning
Clock Test Port
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The functions of the BMPT are as follows:
Performing OM, such as configuration management, equipment management, performance monitoring, signaling processing, and radio resource management
Controlling each board of the system and providing reference clock for the entire system
Providing the absolute time information and 1PPS reference clock source through the GPS card
Transmitting signaling and service data between the BTS and the ASN-GW
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BBBI
Connecting the BBU to the RRU and transmitting service data and clock and synchronization information
ON: The link is operational
OFF: The link is faulty
LED
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CPRI: Common Public Radio Interfaces
The BBBI is the baseband processing and radio interface unit, which is a mandatory board of the BBU3900. A maximum of two BBBIs can be configured in the BBU3900.
The functions of the BBBI are as follows:
Processing uplink and downlink baseband signals
Processing radio frequency signals
Providing the CPRI interface for communication between the BBU3900 and the RRU3701C
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UPEU
RJ45 Port, Receiving dry contact signals and monitoring the external environment
ON: The UPEU is operational
OFF: The UPEU is not operational
Power supply switch
RJ45 Port, Receiving RS485 signals and monitoring the external environment
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UPEU :Universal Power and Environment interface Unit
The UPEU is a power module, which is a mandatory module of the BBU3900. A maximum of two UPEUs can be configured in the BBU3900.
The functions of the UPEU are as follows:
Providing power supply for the baseband subrack and converting the –48 V DC input power to +12 V DC output power
Providing RS485 alarm monitoring ports and dry contact ports
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USCU
Receiving GPS signals
Receiving RGPS signals
Providing the BITS port that supports the adaptive input of 2.048 MHz and 10 MHz clock reference source
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USCU :Universal Satellite card and Clock Unit
The USCU, an optional board, provides time information and 1PPS reference clock source to the BMPT of the BBU3900.
The functions of the USCU are as follows:
Providing time information and 1PPS reference clock source for the BMPT
Supporting six types of GPS cards: Resolution T, M2M, GPS15L, K161, GG16, and JNS100
Determining the type of the current satellite card by checking the 1PPS signals
Supporting the input of RGPS signals
Providing the BITS port that supports the adaptive input of 2.048 MHz and 10 MHz clock reference source
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2.2 BBU3900 cables
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Appearance
Installation Position: The JG terminal on one end of the PGND cable of the BBU3900 is connected to the grounding screw on the hanger at the right side of the BBU3900, and the OT terminal on the other end is connected to the wiring terminal on the PGND bar of the site
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The PGND cable of the BBU3900 is a green and yellow cable or green cable with a cross-sectional area of 6 mm2 [0.009 in.2] (10 AWG). To meet the local specifications, you can also select cables of different colors. One end of the cable is a JG terminal, and the other end is an OT terminal. The OT and JG terminals need to be made on site. If the PGND cable is provided by the customer, a copper-core cable with a minimum cross-sectional area of 6 mm2 [0.009 in.2] (10 AWG) is recommended.
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Appearance
Installation Position: The 3V3 connector at one end of the power cable is connected to the power input port on the UPEU of the BBU3900. The blue wire and black wire at the other end are connected to the external power device
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The BBU3900 uses the –48 V DC power cable. One end of the power cable of the BBU3900 is a 3V3 connector, and the other end is bare, as shown in above slide. An OT terminal or cord end terminal needs to be installed on the bare end on site
Pin of the 3V3 Connector
Wire Color
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Appearance
Installation Position: Install RJ45 connectors on one end of the dry contact alarm cables of the BBU3900 on site and connect the RJ45 connectors to ports EXT_ALM0 and EXT_ALM1 on the UPEU of the BBU3900. Install correct connectors on the other end and connect the connectors to the alarm signal ports of the external Boolean alarm devices
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The dry contact alarm cable transmits alarm signals from external Boolean alarm devices to the BBU3900. Ports EXT_ALM0 and EXT_ALM1 are input ports for detecting Boolean signals and are connected to Boolean signal sensors, such as the temperature sensor and smoke sensor, through the dry contact alarm cable to receive Boolean signals from the Boolean signal sensors.
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Appearance
Installation Position: The SMA male connector is connected to the GPS port on the BMPT of the BBU3900, and the N-type connector is connected to the GPS surge protector
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When the BBU3900 uses the GPS signals as the clock synchronization source, the GPS clock signal cable is used to connect the GPS antenna system and the BBU3900 and to transmit GPS clock synchronization signals to the BBU3900.
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Appearance
Installation Position: The end labeled "BBU" is connected to the MON0 or MON1 port on the UPEU of the BBU3900.
PMU Signal Cable
EMUA signal cable
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The PMU signal cable of the BBU3900 is used to connect the BBU3900 to the PMU and transmit power and alarm signals for environment variables.
The BBU3900 EMUA signal cable is used to connect the BBU3900 to the EMUA or EMU and transmit alarms for environment variables.
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Appearance
Installation Position: One end of the CPRI optical cable is connected to the CPRI0, CPRI1, or CPRI2 port on the BBBI of the BBU3900, and the other end is connected to the CPRI0 port of the RRU3701C/RRU3702
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The CPRI optical cable transmits CPRI signals between the BBU3900 and the RRU3701C.
The CPRI optical cable is a multi-mode 2-wire cable with LC connectors at both ends.
When connecting the optical cable, adhere to the following rules:
The TX port on the BBU3900 is connected to the RX port on the RRU3701C.
The RX port on the BBU3900 is connected to the TX port on the RRU3701C.
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Appearance
Installation Position: Two GE-port optical fibers are used to connect the BBU3900 to the ASN-GW or the ODF. The LC connector on one end of the optical fiber is connected to the SFP0 or SFP1 optical port on the BMPT of the BBU3900
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The GE optical cable transmits optical signals between the BBU3900 and the ASN-GW. The cable is optional.
When connecting the optical cable, adhere to the following rules:
The TX port on the BBU3900 is connected to the RX port on the ASN-GW equipment.
The RX port on the BBU3900 is connected to the TX port on the ASN-GW equipment.
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3.2 RRU3701C cables
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The RRU3701C receives RF signals from the antenna system, down-converts the signals to IF signals, performs amplification, analog-to-digital conversion, digital down-conversion, matched filtering, and Digital Automatic Gain Control (DAGC) for the IF signals, and then transmits them to the BBU.
The RRU3701C receives downlink baseband signals from the BBU, forwards data from its cascaded RRU3701C, performs filtering and digital-to-analog conversion, and up-converts RF signals to the transmitting frequency band.
The RRU3701C multiplexes RX and TX signals over RF channels, enabling the RX signals and TX signals to share the same antenna path. In addition, the RRU3701C filters the RX signals and TX signals.
The RRU3701C is an outdoor module made up of the subrack (or the shell) and the RRU3701C module. Based on different types of the heat dissipation, the RRU3701C is divided into the fan-cooling RRU3701C, which uses fans for heat dissipation, and the natural-cooling RRU3701C, which uses natural heat dissipation.
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Logical Structure of the RRU3701C
The functional modules of the RRU3701C are the intermediate frequency (IF) module, RF module, duplexer module, power amplification module, fan module, and power module
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IF module: Over downlink channels, the IF module performs digital up-conversion and digital-to-analog (D/A) conversion. Over uplink channels, the IF module performs analog-to-digital (A/D) conversion, digital down-conversion, and digital I/Q demodulation.
RF module: Over downlink channels, the RF module mixes analog IF signals with the required working frequency and sends the mixed signals to the antenna after power amplification. Over uplink channels, the RF module performs lower noise amplification and down-conversion for the signals received by the antenna and then sends the analog IF signals to the IF module.
Duplexer module: The duplexer enables received and transmitted signals to share one antenna channel by multiplexing received and transmitted signals over the RF channels. The duplexer module also filters received and transmitted signals.
Power amplification module: The power amplification module amplifies the RF signals from the RF module.
Fan module: in natural heat dissipation mode, no fan module is configured; in heat dissipation fan mode, the RRU subrack is configured with two fans for heat dissipation.
Power module: The power module converts -48 V DC input into the required power output.
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Port
Function
NET
FAN
Providing power supply to the fans and adjusting the speed of the fans
RST
BGND; –48 V
PGND
CPRI0 and CPRI1
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3.2 RRU3701C cables
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Installation Position: One end of the power cable of the RRU3701C is an OT terminal made on site and is connected to the power port at the bottom of the RRU3701C
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The –48 V DC power cable feeds external –48 V DC power to the RRU3701C to provide power for the RRU3701C
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Installation Position: Connect the RRU3701C and the antenna in different ways according to the distance between the RRU3701C and the antenna
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When the distance between the RRU3701C and the antenna is shorter than 20 m, use the RF jumper to directly connect the RRU3701C and the antenna.
When the distance between the RRU3701C and the antenna is longer than 20 m, the RF jumper should not be longer than 2.5 m. If the RF jumper is provided by the customer, a short RF jumper is recommended, and the RF jumper should not be longer than 2 m. In this case, use the RF jumper to connect the RRU3701C and the feeder, and then connect the feeder to the antenna.
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The RRU3702 is an outdoor module made up of the shell and the RRU3702 module. The RRU3702 uses natural heat dissipation without a fan
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Support 2.3GHz/2.5GHz/3.5GHz
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Item
Label
Description
Port
PGND
Optical Port
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The RRU3702 supports the 4T4R RRU. You can group the RF channel and antenna by configuring the antenna bitmap
If ANTBITMAP = 4T4R, the RRU3702 is used as a 4T4R RRU, that is, information on the specified carriers are transmitted and received through the four antennas
If ANTBITMAP = 2T2R_LEFT, RF channels A and B of the RRU3702 form a 2T2R RRU, that is, information on the specified carriers are transmitted and received through the two antennas
If ANTBITMAP = 2T2R_RIGHT, RF channels C and D of the RRU3702 form a 2T2R RRU, that is, information on the specified carriers are transmitted and received through the two antennas
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The RRU3703 is an outdoor module made up of a shell and the RRU3703. The RRU3703 uses natural heat dissipation without a fan.
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Item
ANTA_1, ANTA_2, ANTB_1, ANTB_2, ANTC_1, ANTC_2
RF port. For details, see Other external ports on the RRU3703.
RTN(+)0, NEG(-)0
Power port. For details, see Other external ports on the RRU3703.
TX RX CPRI0/IR0, TX RX CPRI1/IR1
Optical port. For details, see Transmission ports on the RRU3703.
ETH
Local maintenance port. For details, see Other external ports on the RRU3703.
RS485/EXT_ALM
RET port. For details, see Other external ports on the RRU3703.
Indicator
RUN
ALM
ACT
VSWR
CPRI0/IR0
CPRI1/IR1
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The RF antenna system receives and transmits BS signals. An RRU3703 provides three groups of antenna ports. Each group consists two ports that are connected to the two port on the antenna through the feeder or jumper
The DBS3900 WiMAX supports the RET antenna, which is connected to the RRU through the AISG multi-wire cable. In this way, the maintenance personnel can log in to the M2000 client in the equipment room to remotely maintain and manage the RET antenna, such as automatic scanning, antenna tilt setting, and status query.
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Use the DCDU-03C power distribution unit (PDU) when the -48 V DC power supply is available
Use the APM to convert the 220 V AC power to the –48 V DC power when only the 220 V AC power supply is available
Install only the GPS satellite antenna in the areas that use GPS clock signals; install only the GLONASS satellite antenna in the areas that use GLONASS clock signals.
Connect the BBU3900 and the ASN-GW with optical fibers that use GE ports or with Ethernet cables according to the configuration requirement
If the distance between the RRU3701C and the DCDU-03C is less than 1 m, connect the GND cables of the RRU3701C to the grounding bar of the DCDU-03C, and then connect the GND cables to the grounding bar of the equipment room
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The frequency reuse mode is defined as (c, n, s), where c indicates the number of base stations in a cluster, n indicates the frequency reuse factor, and s indicates the number of sectors in each base station.
When the single-frequency point PUSC networking mode is used, the frequency reuse factor is 1.
UL-PUSC for Sub-Channel Allocation
Each of the three sectors under the same base station uses one-third of the sub-channels at the same frequency point. For example, in a base station with 35 sub-channels of 10 MHz bandwidth, the three sectors are allocated 11, 12, and 12 sub-channels, as shown in the above slide.
DL-PUSC for Sub-Channel Allocation
Each of the three sectors under the same base station uses one-third of the sub-channels at the same frequency point. For example, in a base station with 30 sub-channels of 10 MHz bandwidth, each of the three sectors is configured with a segment, and each segment is allocated 10 sub-channels in DL-PUSC mode, as shown in the above slide.
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UL-PUSC with All SC
DL-PUSC with All SC
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When the three-frequency PUSC with all sub-channel networking mode is used, the frequency reuse factor is 3.
UL-PUSC with All SC for Sub-Channel Allocation
In one base station, three sectors are assigned different frequency points, and UL-PUSC with all SC is implemented. The three sectors in one base station are assigned the same UL-PermBase, but different base stations are assigned different UL-PermBases to minimize interference, as shown in the above slide.
DL-PUSC with All SC for Sub-Channel Allocation
In one base station, three sectors are assigned different frequency points, and all sub-carriers within a sector are assigned over downlink channels. The three sectors in one base station are assigned the same UL-PermBase, but different base stations are assigned different UL-PermBases to minimize interference, as shown in the above slide.
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1-Segment 0: sub-channel 0-9
1-Logical Sub channel 0-10
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When the single-frequency point FFR networking mode is used, the frequency reuse factor is 1.
UL_PUSC + PUSC with all SC for Sub-Channel Allocation
The cells located far from the base station use the PUSC mode, and each of the three sectors uses one-third of the sub-channels at the same frequency point. For example, in a base station with 35 sub-channels of 10 MHz bandwidth, the three sectors are allocated 11, 12, and 12 sub-channels, and the three sectors use the same UL-PermBase. The central part of the cell uses the PUSC with all SC mode, and neighboring sectors use different PermBases to balance interference, as shown in the above slide.
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The DBS3900 can be upgraded simply by adding modules. In early phases of network deployment, you can choose a small-capacity configuration such as S (1). As the number of subscribers increases, you can smoothly upgrade the system to a large-capacity configuration such as S (2/2/2)
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O(1), 2T2R
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O(1), 2T2R: Two RRU3702 RF channels (A and B, or C and D) are used to carry a single carrier
O(1), 4T4R: Four RRU3702 RF channels are used to carry a single carrier
O(2), 2T2R: Two RRU3702 RF channels (A and B, or C and D) are used to carry two carriers
O(2), 4T4R: Four RRU3702 RF channels are used to carry two carriers
S(1/1/1), 2T2R: Two RRU3702s are divided into three 2T2R RRUs so that three sectors are provided. Each sector is configured with one carrier
S(1/1/1), 4T4R: Three RRU3702s are used so that three sectors are provided. Each sector is configured with one carrier
S(2/2/2), 2T2R: Two RRU3702s are divided into three 2T2R RRUs so that three sectors are provided. Each sector is configured with two carriers. One RRU uses two optical ports. Each optical port carries two carriers and is connected to a BBBIb. The other RRU also uses two optical ports. Each optical port carries only one carrier and is connected to a BBBIb
S(2/2/2), 4T4R: Three RRU3702s are used so that three sectors are provided. Each sector is configured with two carriers. Each RRU uses two optical ports, each of which carries one carrier
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S(1/1/1), 2T2R
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Questions
Please list all the boards and their functions in DBS3900 WiMAX.
Please state the difference among PUSC,PUSC with all SC,FFR.
Please list all the port functions in RRU3702.
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Summary
The Specifications of DBS3900 WiMAX.
The module function of BBU3900.
The module function of RRU3701C/RRU3702/RRU3703.
The typical networking and configuration.
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Thank you
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oxb101220 dbs3900 wimax v300r003 product description issue1

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