Post on 06-Mar-2016
transcript
ZXSDR NodeB System Introduction
ZTE University
Content
Node B PrinciplesNode B Principles
BBU+RRU System Overview
B8200 Hardware System Structure
R8840/RSU40 Hardware System Structure
I t d ti f SDR 8000 S i P d tIntroduction of SDR 8000 Series Products
Configuration and Networking of B8200 andConfiguration and Networking of B8200 and
R8840
Node B Principles - Signal Transceiving Pathp g g
Uplink signals
Downlink signals
Uplink signals
Downlink signals
Node B Principles - BBUB Networkingp g
N*E1
N*E1
Node B Principles - RRU Networkingp g
RRU
BBUB
RRURRU
RRU
RRU RRU
RRU
Optical fiber
Content
Node B PrinciplesNode B Principles
BBU+RRU System Overview
B8200 Hardware System Structure
R8840/RSU40 Hardware System Structure
I t d ti f SDR 8000 S i P d tIntroduction of SDR 8000 Series Products
Configuration and Networking of B8200 andConfiguration and Networking of B8200 and
R8840
Module Composition - BBUp
BBU
Iub interface Baseband processing RRU interfaceIub interface RRU interfaceRNC RRUmodule module moduleRNC
RRU
Main control module (CPU)
Module Composition - R8840p
Main Functions of Node B
Fulfill radio link transmission with UE at Uu interface Connect with RNC through Iub interface to fulfill the following
functions: Reporting Node B measurement information Forwarding system information broadcast provided by RNC Performing access control, mobility management, radio resource management, and control
command delivered by RNC
Fulfill local environment monitoring Fulfill local environment monitoring.
Concepts about Distributed Base Stationp
It is baseband data that is tranmitted between BBU and RRU. B th i t di t f d di fBoth intermediate frequency and radio frequency are processed in outdoor RRU.
BBU and RRU transmits data through optical fiber, significantly g p , g ysimplifying project construction.
Concept of baseband pool. Node B capacity increases.
Iub
TRX
Iub
(BBU) (RRU)
Concepts about Distributed Base Stationp
PoleAntenna
Feeder Optical fiber
Difference between BBU+RRU and General Node B
A distributed base station consists of two separately-developed, mutually-independent parts. It uses optical fibers instead ofmutually independent parts. It uses optical fibers instead of many radio frequency cables to reduce feeders and save costs significantly. This results in decreased project costs, improved networking flexibility and convenient installationnetworking flexibility, and convenient installation.
BBU+RRU Advantagesg
MSC ServerMSC Server GGSNGGSNMGWMGW
RNCRNC RNCRNC
SGSNSGSN
RRU
RRU
Small scale baseband
pool
Large/medium scale baseband
pool BBU
RRU
RRURRU
RRURRU
RRU
RRU
RRU RRU RRURRU
BBU+RRU is free from the limitation of auxiliary facilities, with fast, flexible networking,
RRU
as well as reduced costs in networking, operation, and maintenance.
BBU+RRU - A More Effective Way to Deal with Equipment Room ShortageEquipment Room Shortage
Setup Method
Use the BBUB + RRU networking mode; Place the baseband pool equipment in the 19" rack, or mount it on the wall in the existing equipment room;equipment room; Lay the antenna feeder plane optical fiber from the baseband pool equipment room to the planned 3G site;U td RRU t th l d 3G it f
Advantages
Use outdoor RRU at the planned 3G site for coverage.
d a tages
Full use of the existing equipment rooms, no need for new ones; Strong upgrade capability; low loss feeders; Strong upgrade capability; low-loss feeders; No need for new transmission networks.
It effectively solves the problem of equipment room shortageIt effectively solves the problem of equipment room shortageIt effectively solves the problem of equipment room shortage. It effectively solves the problem of equipment room shortage.
BBU+RRU Base Station Solves Feeder Overlength ProblemOverlength Problem
Signal loss in feeders will result in degraded coverage performance. The 2G Hz radio frequency signal travels in feeders at a loss of q y g
7dB/100m, and 900M Hz 4dB/100m. Generally, the feeder length of 3G sites is 50 meters, with a signal
loss of about 4dB. RRU makes RF be possibly closest to the antenna to minimize the RRU makes RF be possibly closest to the antenna to minimize the
signal loss in feeders. By using BBU+RRU, signal loss in feeders can be reduced to less
than 1dB. Base station antenna
7/16 female RF connector
RET
1/2 super flexible jumper
7/8 main feeder cable, with female
Outdoor grounding cable cl ip
1/2 super flexible jumper BTS equipment room
Feeder cl ip
ZXWR series RRUs
NO
7/8 main feeder cable, with female
RF connectors at both sides
j
Lightning arrester
Outdoor lightning prot ection grounding clip
ZXWR
ZXWR series RRUs
B
ODE
Feeder cable window
Indoor grounding cable clip BBUB
Features and Advantages of SDR Soft Base StationStation
SDR Base Station SDR Base Station -- Software Defined Radio Base StationSoftware Defined Radio Base Station
Single cabinet Features of SDR base station:
The 2G-3G base stations share cabinets.
The 2G-3G base stations share radio frequency modules. This is
hi d b ft fi ti
RURURURURURU
New-generation RF modules and baseband modules
Intelligent architecture. Software configurations
achieved by software configurations.
The 2G-3G base stations share baseband modules. This is
achieved by software configurations.
The 2G-3G base stations share network management.
2G/3G BB
Software configurations support 2G or 3G processing.
The 2G-3G base stations share antenna feeder systems.
Ad t f SDR B St ti2G/3G BB
2G BB
3G BB
Advantages of SDR Base Station
It solves the capacity balance problem between GSM network and WCDMA network. It reduces the overall network TCO.3G BB
Module sharing It meets the requirements for future network evolution and spectrum sharing.
SDR Is Suitable for Various Networking Scenarios.g
Example: 900MHz and 2100MHz applications
Application TypeApplication Type SDR Base Station ConfigurationSDR Base Station Configuration1 GSM 900MHz Configure RU modules to GSM 900MHz RF units.22 UMTS 2100MHz Configure RU modules to UMTS 2100MHz RF units.3 UMTS 900MHz Configure RU modules to UMTS 900MHz RF units.
4 GSM900 + UMTS 2100MHz Configure partial RU modules to GSM 900MHz RF units. Configure partial RU modules to UMTS 2100MHz RF units.Configure partial RU modules to UMTS 2100MHz RF units.5 GSM900 + UMTS 900MHz Configure RU modules to support GSM and UMTS900MHz RF units.
SDR base station can help operators operate GSM and WCDMA in one network.
Traditional 2G-3G hybrid networking Two networks for physical equipment (radio side)
SDR-based 2G-3G hybrid networking One network for physical equipment. Two networks for physical equipment (radio side).
One network for operation. Two networks for operation and maintenance.
One network for physical equipment. One network for operation. One network for operation and maintenance.
Introduction of ZTE Series Soft Base Stations
ZXSDR 8000 high performance integrated b t ti i ti lti lbase station is a new-generation multiple-module base station launched by ZTE Corporation based on the SDR platform. It centers on the baseband pool unit B8200 centers on the baseband pool unit B8200, and consists of indoor RF module RSU40/RSU60, outdoor RRU R8840, and indoor-coverage micro RRU R8810. Through flexible module combinations, ZXSDR 8000 can build indoor macro base station BS8800outdoor macro base station BS8900, and di t ib t d b t ti D B8200 t t distributed base station D-B8200 to meet full-scenario coverage requirement and create 3D WCDMA coverage network.
ZXSDR 8000 High Performance Integrated Base Station- "Local + Remote" Integrated Coverage Solution of Macro Base Station
BS8800 supports 30CS in WCDMA single-mode
Local + Remote Integrated Coverage Solution of Macro Base Station
configuration, and can provide S111, S222, S333, and
S444 or S222222 typical configuration for local coverage;
BS8800+R8810 BS8800+R8840Outdoor coverage
that is, its largest capacity is 12CS.
After meeting the 12CS local coverage requirement,
BS8800 has a remaining capacity of 12CS, which
In-depth indoor coverage in
large buildingsBS8800 local coverage enables not only outdoor coverage in adjacent areas
through R8840 remote mode, but also indoor coverage
large buildings
in such adjacent indoor scenarios as high-end office
buildings, shopping malls, and conference centers
through R8810 remote mode.This is the "local + remote" g
integrated coverage solution centered on BS8800.
ZXSDR 8000 High Performance Integrated Base Station- Integrated Coverage Solution of Distributed Base Station D-B8200Integrated Coverage Solution of Distributed Base Station D B8200
As a distributed base station, D-B8200 features easy deployment and flexible networking. It is mainly used in the places where there is no equipment room or enough room
R8840
p q p gspace or sufficient floor bearing capacity, or where the distance between the equipment room and the antenna feeder plane is too large, to replace traditional indoor macrocellular base stations and meet the coverage
B8200
Camouflage antenna
D-B8200Plane
coverage
grequirement in dense urban areas, general urban areas, special scenarios, and indoor scenarios.
Camouflage antenna
coverage
D-B8200Point coverage
R8840 R8840
R8840
B8200
R8810
R8840
D-B8200Li
B8200
Line coverage
Content
Node B PrinciplesNode B Principles
BBU+RRU System Overview
B8200 Hardware System Structure
R8840/RSU40 Hardware System Structure
I t d ti f SDR 8000 S i P d tIntroduction of SDR 8000 Series Products
Configuration and Networking of B8200 andConfiguration and Networking of B8200 and
R8840
ZXWR B8200 Hardware Structure
Network switching module (FS)Power module (PM) Baseband processing board (BPC)
Fan module (FA)Control and clock module (CC)Site alarm module (SA)
ZXWR B8200 Hardware Structure
Required boards: Power module (PM): -48VDC power module, which provides power supply for B8200 boards Site alarm board (SA): It provides eight ways of E1/T1 interfaces, RS485/232 interfaces, and eight dry contact
interfaces (six input interfaces and two dual way interfaces)
Required boards:
interfaces (six input interfaces and two dual-way interfaces) Control and clock board (CC): It fulfills baseband unit control and management and provides self-adaptive Abis/Iub IP
interface GE/FE (optical or electrical interface).Fib it h b d (FS) It i f ti i t it h IQ i l It t i fib i t f d i d f Fiber switch board (FS): Its main function is to switch IQ signals. It supports six fiber interfaces and is used for connection with RRU or RSU module.
WCDMA baseband processing board (BPC): It supports 6CS and uplink or downlink 192CE. It also supports a 43.2Mbps downlink or 15Mbps uplink data processing capability.
Fan module (FAN): It is located at one side of the subrack for heat dissipation.
Optional boards: STM-1 network interface board (NIS): It provides two STM-1 interfaces. Site alarm extension board (SE): As an extension board of SA, it provides the same interfaces as the SA board does. GSM baseband processing board (UBPG): It supports 12TRX.
ZXWR B8200 Hardware Structure
Sector configurations: Performance IndicesPerformance Indices
2U 88.4mm WCDMA: 30CS
GSM: 60TRX
Baseband capacity: 960CE
482.6mm Data processing capability: HSDPA: 216Mbps
HSUPA: 75Mbps
Mechanical dimensions:
UL: 192CEDL: 192CEHSDPA: 43.2MbpsHSUPA: 15Mbps
BPC processingcapability Physical IndicesPhysical Indices
Mechanical dimensions:
88.4482.6197mm (HWD) Weight (full configuration): 8.75kg
Typical power consumption: 75W Abis/Iub interface:Interface IndicesInterface Indices
Typical power consumption: 75W
Power supply: -48V DC
Temperature range: -15+50 Humidity range: 5%95%
2*STM-1; 16*E1/T1; 2*FE/GE Baseband RF interface: 12*1.25Gbps optical
interface
Humidity range: 5%95%
ZXWR B8200 Hardware Structure
ZXWR B8200 Functions
It provides ATM/IP dual-mode protocol stack, and supports Hybrid IP and All IP networkingnetworking.
It supports WCDMA/GSM dual-mode configuration.
Under WCDMA single-mode configuration, Phase I supports 128CE/3CS; Phase II supports 192CE/6CS and provides a baseband processing capability of 24CS.
Under GSM single-mode configuration, it provides a baseband processing capability of 60 carrier frequencies.
It supports smooth upgrade towards EDGE/HSPA+/LTE.
It supports HSPA: 14.4/5.76Mbps(DL/UL).
ZXWR B8200 Functions
It supports MBMS and 4x256kbps / 8x128kbps / 16x64kbps access modes.
It enriches Iub/Abis interface types by providing multiple interfaces such as E1/T1, STM-1, FE, and GE to meet different networking requirements under various transmission conditions.various transmission conditions.
It provides 12 pairs of 1.25G CPRI interfaces.
It supports WCDMA R99, R4, R5, R6, and R7 versions, and supports R8 after evolution.
It supports GSM Phase I/Phase II/Phase II + versions.
Control & Clock & Switch Board (CC) ( )
Interface Name Description
ETH0 An Ethernet interface that is used between BBU and RNC or BSC. There are two types of ETH0 interfaces on the panel, that is, optical interface and electrical interface (10M/100M/1000M self-adaptive).
ETH1 It is used for BBU cascade, debugging or local maintenance. Ethernet electrical interface (10M/100M/1000M self-adaptive).
EXT An external communication interface that connects with external receivers. It mainly includes 485 and PP1S+/2M+ interfaces.
REF An SMA (F) interface that externally connects with GPS antenna.
Control & Clock & Switch Board (CC) ( )
It has Ethernet switching function and supports the data switching between service flow and control flow in the systemservice flow and control flow in the system.
It handles Iub interface protocols (NBAP, SSCOP, and ALCAP). It monitors, controls, and maintains base station systems. It manages the versions of board software and programmable logic devices in It manages the versions of board software and programmable logic devices in
the system, and supports local and remote version upgrade. It monitors the working condition of the boards in the system. It synchronizes external reference clocks It synchronizes external reference clocks. It generates and distributes the clock signals required by individual parts in the
system.
Control & Clock & Switch Board (CC) ( )
It provides GPS receiver interface and manages GPS receivers. It provides board power interfaces ( 48V 48V ground PGND and DGND) It provides board power interfaces (-48V, -48V ground, PGND, and DGND),
and provides reverse connection protection for the power supply. It reads system hardware management IDs: rack No., backplane type, slot No.,
board functions, board version, and board function configuration ID.board functions, board version, and board function configuration ID. It has active/standby switchover and reset functions. It supports active/standby hot backup function.
Fiber Switch Board (FS) ( )
Interface introduction: Tx0/Rx0 Tx5/Rx5: It provides the optical interface that connects with Tx0/Rx0 - Tx5/Rx5: It provides the optical interface that connects with
RRU. Board functions: It switches baseband I/Q data. It provides the interface between BBU and RRU.
Baseband processing board (BPC) p g ( )
BPC fulfills the physical layer protocol and frame protocol specified by 3GPP. It performs such functions as downlink service data encoding/multiplexing,
rate matching, channel mapping, spread scrambling,power weighting, and channel synthesis.
It fulfills RAKE reception and channel decoding of uplink signals. It synchronizes radio links and processes transmission frames. It measures the parameters required for power control and handover. It has softer handover and diversity reception/transmission functions.
SA Panel Cables
Grounding
Connect with E1/T1 cable
Connect with Connect with RS232 and
RS485 debugging serial
ports
Connect with dry
Connect with SA board panel
socket
Co ect t d ycontact signal
cable
Site Alarm Board (SA) ( )
SA Board functions:It t l t l d d t l f t i f It supports alarm control and speed control of up to nine fans.
It provides signal monitoring and interface lightning protection for the shelf at which it is located.
It provides six input dry contact interfaces and two input/output dry contact interfaces.
It provides eight E1/T1 interfaces.p g
Content
Node B PrinciplesNode B Principles
BBU+RRU System Overview
B8200 Hardware System Structure
R8840/RSU40 Hardware System Structure
I t d ti f SDR 8000 S i P d tIntroduction of SDR 8000 Series Products
Configuration and Networking of B8200 andConfiguration and Networking of B8200 and
R8840
R8840/RSU40 Hardware Structure
The R8840 is a high-power outdoor The R8840 is a high power outdoor remote RF unit and the RSU40 is a high-power indoor RF module from ZTE.ZTE.
The R8840 and RSU40 have the same inner transceiver unit, power amplifier, duplex filter and power module asduplex filter, and power module, as well as the working principle and software structure. They mainly differ in the physical structure.p y
R RRU 8 WCDMA 8 Outdoor 40 40 W R8840 RSU40
R8840/RSU40 Hardware Structure
320 mm 165 mmZXSDR R8840: outdoor macro RRU360
m
S t fi ti
Performance IndicesPerformance Indices
mm Sector configurations
1C1S to 4C1S Transmit power: 40 W/60 W
Small and light
p
Receive sensitivity
-129.2 dBm@dual antennas Physical IndicesPhysical Indices
Interface IndicesInterface Indices
Dimensions: 370 mm x 320 mm x 160 mm
Weight: 16.5 Kg
Standard power consumption: 140 W
Baseband RF interface: 2 x 1.25 GHz optical interface
Interface IndicesInterface Indices p p
Power supply: -48 V DC, 220 V AC
Temperature range: -40oC to +55oC Protection class: IP65
R8840/RSU40 Hardware Structure
Transceiver Unit RTR Provides two receiving and one transmitting signal channels
Shift i l li k d d li k di li k Shifts signals on uplink and downlink radio links Amplifies and filters signals and coverts A/D and D/A Retrieves clock reference signals through the Ir interface and provides g g
clock reference for inner modules Measures and reports VSWR Self-checks and reports hardware failure Self checks and reports hardware failure Monitors the environment Inputs external alarms
Power Amplifier Unit HPA p Amplifies RF signals Reports temperature Provides overcurrent, overtemperature, overpower, and over
standing wave protectionsstanding wave protections
Duplex Filter Unit DFL p Provides transmission/reception combination and
di idi / litti f ti f RF i ldividing/splitting functions for RF signals Provides transmit/receive RF channel filtering Provides the low noise amplifier (LNA) function Provides the low noise amplifier (LNA) function Provides transceiver unit with the LNA alarm reporting function
Power Module RPW Power modules can be divided into AC and DC power modules,
th t i RPW AC/DC If AC l i d th RPW ACthat is, RPW AC/DC. If AC power supply is used, the RPW ACis configured. If DC power supply is used, the RPW DC is configured. The RPW provides the following functions:
Coverts AC/DC power supply Provides the transceiver unit with undervoltage, overvoltage,
and overcurrent alarmsand overcurrent alarms
Ports on the R8840BBU and RRU port
or cascading RRU port
BBU and RRU portor
cascading RRU port
AISG portAntenna tuning port
Monitoring port Power portAC or DC
cascading RRU port cascading RRU port
Grounding
ANT2 ANT1 RxInRxOutReceiver diversity
RF cable portTransmit/receive main set
RF cable portfrequency point extension port
frequency point extension port
Ports on the RSU40ANT2
Receiver diversityRF cable port
ANT1Transmit/receive main set
RF cable port
BBURRUBBU and RRU port
Frequency point extension port
BBURRURRU
U a d U po tCascading RRU port
Commission network portRJ45RJ45
Test port
External equipment monitoring portmonitoring portDB15 connector
AISG equipment portRET antenna port
Power supply port
R8840/RSU40 Features
Small, light, and flexibly deployed
The R8840 is easy to transport because the size and weight of the R8840 are 19 L and 16.5 kg respectively. It can be installed on the outdoor pole, wall, platform, and tower. Therefore, the restrictions of equipment room and auxiliary equipment are removed and the 3G network deployment period isauxiliary equipment are removed, and the 3G network deployment period is shortened. The RSU40 is vertically inserted in the cabinet.
Supports 20W/40W/60W power configurations.
R8840/RSU40 Features
Supports four carriers and smooth capacity expansion.
The R8840/RSU40 supports a maximum of four carriers. With the highly efficient power amplifier, the smooth capacity expansion from one carrier to four carriers can be achieved. Therefore, the capacity expansion demands of 3G networks can be met3G networks can be met.
The highly efficient power amplifier reduces 40% of the overall power consumption.
R8840/RSU40 Features The power amplifier unit of the R8840/RSU40 uses the highly efficient Doherty
PA and DPD linear technology developed by ZTE. The power amplifier rate h 40% Th t i l ti i 140 W d 175 W ti lreaches 40%. The typical power consumption is 140 W and 175 W respectively
when the R8840/RSU40 is in 40 W and 60 W configurations. Therefore, the OPEX of future networks can be effectively reduced.
E h R8840/RSU40 t t i i h l ( i di it ) d Each R8840/RSU40 supports two receiving channels (receive diversity) and one transmit channel. With the combined cabinets, the R8840/RSU40 supports the configuration of one single sector with four antenna receive diversities. Also, transmit diversity configuration is support by the combined cabinets. No more antenna is needed and the same sensitivity is obtainedantenna is needed and the same sensitivity is obtained.
R8840/RSU40 Features The R8840 supports flexible networking modes.
Supports the star, chain, ring, and hybrid networking modes, and four-level cascading.
The R8840 supports IP65 protection class and multiple outdoor installation pp p pscenarios.
Content
Node B PrinciplesNode B Principles
BBU+RRU System Overview
B8200 Hardware System Structure
R8840/RSU40 Hardware System Structure
I t d ti f SDR 8000 S i P d tIntroduction of SDR 8000 Series Products
Configuration and Networking of B8200 andConfiguration and Networking of B8200 and
R8840
Indoor SDR Macro BTS in Dual Mode ZXSDR BS8800BS8800
RF layerRF unit configuration
portportRSU40
Cabling troughg gSupports in-cabinet cabling
PDMPower distribution
Fan moduleFan moduleHeat dissipation unit of
the RF unit
Air ventilationHeat dissipation unit of Heat dissipation unit of
the RF unit
Baseband layerBaseband unit
Baseband unit configuration port
B8200
Indoor SDR Macro BTS in Dual Mode ZXSDR BS8800
Configure the RU to the Sector configurations: Performance IndicesPerformance Indices
BS8800
Radio UnitConfigure the RU to the GSM/WCDMA mode and frequency band through software
Sector configurations:
WCDMA single mode: 24 CS GSM single mode: 36 TRX
BasebandUnit
software
Configure the BP to perform GSM/WCDMA
Baseband capacity: 960 CE
Transmit power: 60 W
Receive sensitivitypprocessing through software
Receive sensitivity
-129.2 dBm@dual antennas
Physical IndicesPhysical Indices Dimensions
950 mm x 600 mm x 450 mm Weight (full configuration)
Physical IndicesPhysical Indices
Iub interface
2 x STM-1; 16 x E1/T1; 2 x FE/GE
Interface IndicesInterface Indices
150kg Typical power consumption
425 W in S1/1/1 configuration Power supply
60 W HPA providing sufficient power and performance
40% HPA reducing power Power supply-48 V DC
40% HPA reducing power
ZXSDR BS8800 Hardware Structure
The main and auxiliary cabinets of the BS8800 are in layered design. The dimensions of the main cabinet are 950 mm x 600 mm x 450 mm (H x W x D). The auxiliary cabinet is used to expand the capacity in the GSM system. Its dimensions are 700mm x 600mm x 450mm (H x W x D).
The main cabinet is composed of the RF unit, power distribution subrack, transmission equipment subrack, fan subrack, baseband unit, and heat dissipating subrack. The auxiliary cabinet is composed of the RF unit, power distribution subrack, transmission equipment subrack, fan subrack and heat dissipating subracksubrack, and heat dissipating subrack.
Outdoor SDR Macro BTS in Dual Mode ZXSDR BS8900BS8900
Sector configurations:
WCDMA single mode: 24 CS GSMsingle mode: 36 TRX (single cabinet)
Baseband capacity: 960 CE
Transmit power:60 W
Receive sensitivity
-129.2 dBm@dual antennas Dimensions
1900 x 950 x 600mm
Weight (full configuration): 410 kg
Typical power consumption: 565 W in S1/1/1configurationconfiguration
Power supply: -48 V DC, 220 V AC
Standby batteries: 2 groups of 150 AH batteries
ZXSDR BS8900 Hardware Structure
The BS8900 can be configured flexibly with the outdoor RF cabinet, site supporting cabinet, and battery cabinet based on the actual capacity and the on-site requirement. The outdoor RF cabinet holds up to six outdoor RF units. The site support cabinet holds the power supply system and baseband pool unit. The 6U space can also hold other devices such as the transmission pequipment. The battery cabinet can hold two sets of 150 AH batteries.
Distributed BTS D-B8200
FeederFeeder
Remote optical cablep
Distributed BTS D-B8200
48 26 cm2U height Flexible deployment. Supports wall installation or 19-inch cabinet installationBBUBBU: : B8200B8200
2U
48.26 cm MicroTCAplatform
Supports GSM/UMTS and smooth development to LTE
Large capacity 960 CEs in full configuration. Supports a maximum of 12 CS and 24 CS
High data through put rate
Supports 43.2 Mbit/s downlink and 15 Mbit/s uplink concurrently for one BPCRRURRU
Distributed BTS ZXSDR D-B8200
R8840R8840 R8810R8810
4 carriers
Transmit power:
40 W/60 W
2 carriers
Transmit power:
10 W40 W/60 W
Size: 19 L
Weight: 16.5 Kg
10 W
Size: < 10 L
Weight: 9.5 Kg
The BBU of the MicroTCA architecture has high performance and develops smoothly The RRU can meetThe BBU of the MicroTCA architecture has high performance and develops smoothly. The RRU can meet different application requirements.
D-B8200 Hardware Structure
The D-B8200 is composed of the baseband unit B8200 and RRU (R8840, R8860, or R8810). The combination of B8200 and R8840 makes a macro cell distributed BTS in single mode. The combination of B8200 and R8860 makes a macro cell distributed BTS in double mode. The combination of B8200 and
R8810 makes a distributed indoor micro cell BTS.
Content
Node B PrinciplesNode B Principles
BBU+RRU System Overview
B8200 Hardware System Structure
R8840/RSU40 Hardware System Structure
Introduction of SDR 8000 Series ProductsIntroduction of SDR 8000 Series Products
Networking of B8200 and R8840Networking of B8200 and R8840
Typical Networking Modesyp g
Chain Chain
BBURRU RRU RRU RRU
RRU BBU RRU
Star
Maximum levels of cascading: 4 Maximal transmission distance of each level:
RRU BBU
Maximal transmission distance of each level: 40 km
Total maximum transmission distance: 100 km RRU Maximum number of RRUs: 12
Indoor Distribution of B8200+RRU
ZXWR B820088.4 mm x 482.6 mm x 197 mm (H x W x D)( )
Solves the 3G space restrictionSolves the 3G space restriction
Macro BTS NodeB + RRU
ArchitectureArchitectureApplicable to scenarios with insufficient
equipment room resourceBS8800 h l b b d l
New equipment room
No equipment room
BS8800 as the large baseband poolNearby RRUs connected to the
BS8800 directly through optical cablesData transmitted to the backboneData transmitted to the backbone
network through the baseband pool
Advantages
Saves space
Backbone network
Saves spaceSaves transmission resourcesReduces feeder loss
Added optical cable
Distributed BTS
Highly improved system coverageRF
The feeder loss reduces system coverage. Th i l f 50 f d i 4 dB
RRU
RF
The gain loss of 50 m feeder is 4 dB. Similar to antennas, the use of RRUs reduces feeder loss. Gain loss of 1 dB is reduced when B8200+RRU Gain loss of 1 dB is reduced when B8200+RRU
combination is used.
Optical cable
ZXWR B8200Reducing every 3 dB gain loss on the uplink can improve 48% system coverage rate and
save 12% NodeB resources.