FDD-LTE eNodeB Hardware Basic PrincipleZTE University

ContentsFDD-LTE eNodeB OverviewDistributed eNodeB Hardware IntroductionIndoor Macro eNodeB Hardware IntroductionOutdoor Macro eNodeB Hardware Introduction

FDD LTE Products Overview

Product TypeApplicable room Applicable scene eBBUZXSDR B8200 L200Room space insufficient Room conditions limited Outdoor macro cover Indoor coverage LTE-UMTS-GSM multimode ZXSDR BS8800/BS8900Outdoor macro cover Indoor coverage LTE-UMTS-GSM multimode eRRUZXSDR R8880 L268/L188Outdoor macro coverZXSDR R8882 L200/L268/(Multi-mode)L1812/S1800Outdoor macro cover ZXSDR R8884 L200Outdoor macro cover

Product Position in Network

Distributed eNodeB Networking Saving labor cost and engineering cost for networkingFast networking, also saving the fees of renting equipment roomConvenient in upgrade and capacity expansion; saving the initial stage cost of the NetworkLow power consumption, power-savingDistributed networking, making good use of operators' network resources supporting eBBU+eRRU distributed networking; supporting star networking mode between eBBU and eRRUAdopting a more perspective and generalized eNodeB platform

Indoor /Outdoor Macro eNodeB NetworkingZXSDR BS8800/BS8900A L200 supports two networking modes between the baseband part (eBBU) and the RF part (RSU): Star Networking and Chain Networking

eNodeB Product Characteristics

ContentsFDD-LTE eNodeB OverviewDistributed eNodeB Hardware IntroductioneBBU Hardware IntroductioneRRU Hardware IntroductionIndoor Macro eNodeB Hardware IntroductionOutdoor Macro eNodeB Hardware Introduction

LTE eBBU Overall Appearance

B8200 External Interface

B8200 External Interface

No.Interface NameBoardDescription1MONPMDebug interface, RS232 interface2-48V/-48VRTNPM-48V input3TX0/RX0~TX2/RX2BPL3 pairs of optical interfaces , which are mainly used to connect to eRRU4DEBUG/CAS/LMTCCIt is used for eBBU cascading, debugging, and local maintenance. ETH1 is an Ethernet electrical interface (Adaptive to 10 M/100M/1000M automatically)5ETH0CCETH0 is used for S1/X2 connection. It is an Ethernet electrical interface(Adaptive to 100 M/1000 M automatically). 6TX/RXCCTX/RX is used for S1/X2 connection. It is an Ethernet optical interface(supports 1000 BASE-LX/SX or 100 BASE-FX).7USBCCData updating8REFCCREF is used for GPS antenna interface or BITS clock interface9EXTCCEXT is mainly used for external GPS receiver or clock extension10SASARS485/232 interface on SA board panel, which is mainly used as monitoring

B8200 Software Structure

LTE eBBU Technology Specifications

ItemDescriptionDimension88.4 mm x 482.6 mm x 197 mm (HxWxD)Weight7.5 KgCapacity600 Mbps DL + 225 Mbps UL(six 20 MHz cells in MIMO 2x2).l 600 Mbps DL + 300 Mbps UL(three BPL boards in MIMO 4x4)Power Supply-48V DC (voltage range: - 57V ~ - 40V)Typical Power Consumption125 WTemperature-15~ +50 Relative Humidity5% ~ 95%Ground5 . earth resistance can be less than 10 in thunder-less area which has thunderstorm days less than 20

eBBU Boards Configuration Principle1. PM module2. Shelf3. FA module4. BPL0/BPL1 board5. CC board6. SA module

eBBU Boards Configuration Principle

BoardSlotNumber(Min/Max)DescriptionCCSlot1~2the throughput is 900Mbps(DL)/450Mbps(UL)support 3600 RRC connections;FS3/FS5Slot3~4Supply 6 pairs optical interface, support GL common mode.FS3:support 2.5G, 10MHz, and it can not connect to R8884;FS5:support 6G, 20MHz, and it can connect to R8884BPL0/BPL1Slot5~81/6or4BPL0:support three 20 MHz cells in MIMO 2x2 and 1200 RRC connections, the throughput is 300 Mbps(DL)/150 Mbps(UL);BPL1:support three 20 MHz cells in MIMO 4x4 or six 20 MHz cells in MIMO 2x2, support 3600 RRC connections, the throughput is 600 Mbps(DL)/300Mbps(UL);SASlot131/1Site Alarm boardPMSlot14~15configure 2 PM, when the Power Consumption is more than 250 WFAMSlot161/1Fan module

Board Function CC GPS and Clock moduleSynchronizing with various external reference clocks, including the GPS clock and the clock provided by BITS, IEEE 1588, etc.Generating and delivering the clock signal to other modules.Providing GPS receiver interface and managing the GPS receiver.Providing a real-time timing for system operation and maintenance; the real-time timing can be calibrated by O&M or GPS.Transmission modulesImplementing data switching for service data and control flow within the system.S1/X2 interface protocol processing.Supporting primary/slave boards hot backup.Provide GE/FE physical interfaces.

Board Function CC GE switch moduleThe GE switch module is made as a switching network between CC board and baseband processing board. User data, control and maintenance signals between CC board and baseband processing board are all transmitted through this module.Other FunctionManaging software versions of boards and programmable components, and supporting local and remote software upgrade.Monitoring, controlling and maintaining of the base station system, providing LMT interface.Supervising the running status of each board within the system.Inventory management.

CC Board Interface

CC Board Indicators

LEDColor MeaningRUNGreenIndicate the running state.ALMRedIndicate the alarm.MSGreenIndicate the active/standby stateREFGreenIndicate the GPS antenna state or 2 MHz status. It also shows the connection states of the SMA port on the corresponding panel.ETH0GreenIndicate the link states of the ETH0 interface.ETH1GreenIndicate the link states ofDEBUG/CAS/LMT interfaceE0S~E3SGreenIndicates E1/T1 link states

FS FunctionFS board is fabric switch board which provide baseband optical interface between eBBU and eRRU, and processes the IQ signal.6 pairs of optical interfaces

FS Board Indicators

LEDColor MeaningRUNGreenIndicate the running state.ALMRedIndicate the alarm.MSGreenIndicate the active/standby stateSCSGreenIndicate system clock running stateFLSGreenIndicates forward baseband link is normal or notRLSGreenIndicates reverse baseband link is normal or not

BPL Board FunctionZXSDR B8200 L200 can be installed with 1 to 3 BPL boards. One BPL can deal with 20MHz LTE bandwidth with 3 cells.BPL processes LTE baseband protocol specified by 3GPP R8.Processing physical layer protocol.Providing uplink/downlink I/Q signal.Processing MAC, RLC and PDCP protocol.

BPL Board Indicators

LEDColor MeaningRUNGreenIndicate the running state.ALMRedIndicate the alarm.BLSGreenIndicate the backplane linkstateBSAGreenIndicate board running stateLNKGreenIndicates Ethernet link stateCSTGreenIndicates CPU running stateOF0~OF2GreenIndicates optical interface running state

SA Board FunctionZXSDR B8200 L200 is configured with 1 Site Alarm (SA) board. The board will be managed by CC board.The main function of SA board are:Responsible for fan speed control and alarming.Providing external interfaces.Monitoring serial interface.Monitoring boards temperature.Providing dry contacts and the lightening protection for the external interfaces.RS485/232 interface

FAN Module FunctionZXSDR B8200 L200 is configured with 1 Fan Module(FAN). The main functions of FAN are:Fan speed auto-adjustment according to the equipment working temperature.Monitor, control and fan state reporting.

PM Board FunctionZXSDR B8200 L200 can be configured with 2 PMs, working with 1+1 redundancy mode, or load-balancing.PM has the following functions:Providing two kinds of DC output voltage: 3.3 V for Management Power (MP) and 12V for Payload Power (PP).Reset all of the other boards in eBBU frame under the control of man-machine commands.Detecting the presence/absence state of all the other boards in eBBU frame.Providing protection of input over-voltage/under-voltage.Providing protection of output over-current and overload power management.-48V input

ContentsFDD-LTE eNodeB OverviewDistributed eNodeB Hardware IntroductioneBBU Hardware IntroductioneRRU Hardware IntroductionIndoor Macro eNodeB Hardware IntroductionOutdoor Macro eNodeB Hardware Introduction

RRU Overall AppearanceZXSDR R8882ZXSDR R8880ZXSDR R8884

R8880 Interface

No.LabelDescription1ANT1Interface to antenna2ANT2Interface to antenna3AISG/MONdry contact, RS485 and AISG4LMTOperation & maintenance interface/FE interface5Optical port 2Interface between R8880 and eBBU, or a cascaded eRRU6Optical port 1Interface between R8880 and eBBU, or a cascaded eRRU7Antenna coupling interfaceRadio frequency detecting interface8PWRPower supply interface, DC -48V

R8880 Technology Specifications

ItemDescriptionDimension470 mm x 340 mm x 130 mm (H x W x D)WeightLess than 20 kgMaximum bandwidth20 M (support multiple carriers with different bandwidths)Frequency rangeL188: 1710 MHz~1750 MHz(UL), 1805MHz~1845 MHz(DL)L268: 2500 MHz-2570 MHz(UL), 2620 MHz-2690 MHz(DL)Maximum RF Transmission Power60 WPower Supply-48V DC (voltage range: L188(- 57V ~ - 40V);L268(- 60V ~ - 35V)Peak power consumptionL188: 297.5 WL268: 335 WWorking temperature-40 to +55Working humidity5% ~ 100%Ground5 . earth resistance can be less than 10 in thunder-less area which has thunderstorm days less than 20

R8882 Interface

R8882 Interface

R8882 Technology Specifications

ItemDescriptionDimensionL200:380 mm x 320 mm x 140 mm (HxWxD)GUL1812:472 mm x 320 mm x 152 mm (HxWxD)WeightL200:20 kg; GUL1812:24 kgMaximum bandwidth20 M (support multiple carriers with different bandwidths)Frequency rangeL200:L188 is 1710 MHz~1785 MHz(UL) /1805 MHz~1880 MHz(DL), L708 is 698 MHz~716 MHz(UL)/728 MHz~746 MHz(DL), L808 is 832 MHz~862 MHz(UL)/791 MHz~821 MHz(DL), L268 is 2500 MHz~2570 MHz(UL)/2620 MHz~2690 MHz(DL);GUL1812:1730 MHz~1785 MHz(UL)/1825MHz~1880 MHz(DL)Maximum RF Transmission PowerL200: L188/ L708/L808 is 2x40 W; L268 is 2x30 WGUL1812: 2x60 WPower Supply-48V DC (voltage range: - 37V ~ - 57V)Peak power consumptionL200: 330 WGUL1812: 460 WWorking temperature-40 to +55Working humidity5% ~ 100%GroundLess than 0.1 between grounding terminal and device terminal

R8884 Interface

R8884 Interface

No.LabelInterface NameInterface Type/Connector1PWRPower supply interface2-core round plastic cable connector2MONRS485/dry contact monitoring interface8-core round connector3AISGAISG device interface8-core round connector4OPT1Connector to the eBBUStandard CPRI interface5OPT2ReservedStandard CPRI interface6ANT44th TX/RX antenna feeder interface50 DIN type connector7ANT33rd TX/RX antenna feeder interface50 DIN type connector8ANT22nd TX/RX antenna feeder interface50 DIN type connector9ANT11st TX/RX antenna feeder interface50 DIN type connector10LMTO&M Ethernet interface8P8C Ethernet interface

R8884 Technology Specifications

ItemDescriptionDimension600 mm 320 mm 145 mm (H x W x D)Weight29 kgMaximum bandwidth20 M (support multiple carriers with different bandwidths)Frequency rangeS2600: 2500 MHz-2570 MHz(UL), 2620 MHz-2690 MHz(DL)M8026: DD: 832 MHz~862 MHz(UL)/791 MHz~821MHz(DL)2.6G 2500 MHz~2570 MHz(UL)/ 2620MHz~2690 MHz(DL);M1826:1.8G 1710 MHz~1785 MHz(UL)/ 1805 MHz~1880 MHz(DL)2.6G2500 MHz~2570 MHz(UL)/2620 MHz~2690 MHz(DL)Transmission Power4 40 WPower Supply-48V DC (voltage range: L188(- 57V ~ - 37 V)Peak power consumptionR8884 S2600730 WR8884 M8026700 WR8884 M1826800 WWorking temperature-40 to +55Working humidity5% ~ 100%

Power Cable and Grounding CableeBBU Power CableeRRU Power CableGrounding Cable

S1/X2 CableS1/X2 Optical FiberS1/X2 Ethernet Cable

GPS Cable

AISG Cable

RF Jumper

ContentsFDD-LTE eNodeB OverviewDistributed eNodeB Hardware IntroductionIndoor Macro eNodeB Hardware IntroductionOutdoor Macro eNodeB Hardware Introduction

Cabinet Layout

RF LayerThere is one RF layer. Located at the top of the cabinet, it is used to accommodate RSUs.

Baseband SubrackThe baseband unit subsystem of ZXSDR BS8800 L200 is B8200.The baseband digital part of B8200 comprises Control & Clock (CC)board, Site Alarm (SA) board, Baseband Processing for LTE (BPL), Power Module (PM), and Fan Module (FAN). It provides the functions such as S1 interface, signaling processing, remote and local operation & maintenance, work status monitoring, and alarm reporting.

Power Distribution SubrackThe power distribution subrack is used to distribute power for the entire equipment.

Fan SubrackDissipate heat for the overall equipmentDetect, monitor, and report fan statusDetect the temperature at air inlet

Ventilation SubrackThe ventilation subrack leads air into the cabinet to dissipate heat in the modules through fans.

RSU FunctionThe RF part uses the RSU82 module, which performs the following functions:Uplink: Amplifies, filters, and demodulates the received four branches of RF signal, and outputs the baseband IQ signal.Downlink: Filters the two branches of baseband IQ signal, modulates the signal into the RF signal, performs linear amplification for the signal, and sends the signal to antenna.RF measurement alarm, DPD processing, antenna feeder interface SWR measurement, and receiving field intensity measurement.

RSU Interface

LEDMeaningTX1/RX1Connecting eBBU or the CPRI optical interface of cascaded upper RSUTX2/RX2Connecting the CPRI optical interface of cascaded lower RSURXout/RXinFrequency expansion output/input interface, outputting/inputting the main diversity receiving signalANT1(TX/RX1A)The first transmitting/receiving antenna feeder interfaceANT2(RX1B)The first receiving antenna feeder interfaceANT3(TX/RX2A)The second transmitting/receiving antenna feeder interfaceANT4(RX2B)The second receiving antenna feeder interfaceAISGConnecting the antenna feeder AISG interfaceMONProviding four dry contact input interfaces and RS485 environment monitoring interfacesPOWERPower supply interfaceDBGDebugging network interface and testing interface

RSU Indicators

LEDColor MeaningRUNGreenIndicate the running state.ALMRedIndicate the alarm.LNK1 ~LNK2GreenOptical interface link indicatorRF1 ~ RF2GreenRF working status indicator

Subrack Configuration

SubrackAmountFunctionsRF Layer1Configuring the RF unit and processing radio signal transmitting and receivingBaseband Layer1Configuring the baseband unit and processing the baseband dataPower DistributionSubrack1Distributing the system power supplyFan Subrack 1Performing heat dissipation for the RF unitVentilation Subrack1Performing heat dissipation for the RF unitCable Rack1Used for cabling inside the cabinet

ContentsFDD-LTE eNodeB OverviewDistributed eNodeB Hardware IntroductionIndoor Macro eNodeB Hardware IntroductionOutdoor Macro eNodeB Hardware IntroductionBS8900A Hardware IntroductionBS8900B Hardware Introduction

Cabinet CompositionZXSDR BS8900A L200 supports the following four configuration combinations:Combination 1: BC8910A+PC8910A+RC8910ACombination 2: BC8910A+PC8910A+eRRUCombination 3: BC8910A+RC8911ACombination 4: BC8910A+RC8910A

CombinationBC8910A+PC8910A+RC8910ABC8910A+PC8910A+eRRUBC8910A+RC8911ABC8910A+RC8910A

Outdoor Baseband Cabinet Layout

PC8910A Cabinet LayoutBattery

RC8910A Cabinet Layout

RC8911A Cabinet Layout

B900 Power Supply Subrack

PDM Subrack (1)BC8910A CabinetRC8910A Cabinet

PDM Subrack (2)RC8911A Cabinet

eBBU Subrack

Fan SubrackBC8910ARC8910ARC8911A

Battery SubrackBattery FunctionsThe outdoor cabinet of BS8900A has an independent battery cabinetPC8910A, and the nominal capacity of the built-in battery is 300 AH. If the input AC power supply is interrupted, the battery can provide power supply to ensure that the equipment runs normally.Battery Heating Board FunctionsAccording to actual conditions, the battery heating board can be used in frigid area. The temperature control switch controls whether the battery heating board is connected or not. When the temperature inside the battery cabinet is lower than -5C , the battery heating board starts to work. When the temperature inside the battery cabinet is higher than 10C , the battery heating board stops working.

Lightning Protection Subrack

Subrack Configuration

CabinetSubrackAmountConfigurationDescriptionBC8910AB9001MandatoryADPD11MandatoryeBBU1MandatoryBFAN21MandatoryLPU1OptionalPC8910ABattery group1 ~ 8OptionalRC8910ADCPD4K1MandatoryRSU1 ~ 6Mandatory. The standard configuration is 3 RSU subracks.RFAN31MandatoryRC8911ADCPD1K1MandatoryRSU1~3Mandatory. The standard configuration is 3 RSU subracks.RFAN11MandatoryBattery group1~4Optional

ContentsFDD-LTE eNodeB OverviewDistributed eNodeB Hardware IntroductionIndoor Macro eNodeB Hardware IntroductionOutdoor Macro eNodeB Hardware IntroductionBS8900A Hardware IntroductionBS8900B Hardware Introduction

Cabinet CompositionZXSDR BS8900B supports the following configuration combinations:Combination 1: BC8910BCombination 2: RC8910B-7Combination 3: RC8910B-9Combination 4: BC8910B+PC8910BCombination 5: RC8910B-7+PC8910BCombination 6: RC8910B-9+PC8910B

Cabinet - BC8910B1. Fan Subrack2. B201 Subrack3. DCPD6 Subrack4. eBBU Subrack5. Reserve space 6. Battery7. Cabinet Door

Cabinet - RC8910B-71. Fan Subrack2. DPM10 Subrack3. B201 Subrack4. eBBU Subrack5. Reserve space 6. Battery7. DPM12 Subrack8. RSU Unit9. Cabinet Door

Cabinet - RC8910B-91. Fan Subrack2. DPM10 Subrack3. B201 Subrack4. eBBU Subrack5. Reserve space 6. Battery7. DPM12 Subrack8. RSU Unit9. Cabinet Door

Cabinet - PC8910B

Cabinet - BC8910B+PC8910B

Cabinet - RC8910B-7+PC8910B

Cabinet - RC8910B-9+PC8910B

B201 SubrackPower Distribution Unit Monitoring UnitRectifier Group

DCPD6 SubrackDC-IN Control SwitchDC-Out (1~9)LP-ALM

DCPD5 SubrackDC-IN Control SwitchDC-Out (1~8)LP-ALM

DPM10 Subrack DC-IN Control SwitchDC-Out (1~7)LP-ALM

DPM12 Subrack DC-IN Control SwitchDC-Out (1~13)LP-ALM DC-IN

eBBU SubrackPM Module BPL Module FAN Module CC Module SA Module

LPU Subrack

Battery SubrackBattery FunctionsThe outdoor cabinet of BS8900B has an independent battery cabinet PC8910B, and the nominal capacity of the built-in battery is 150 AH. If the input AC power supply is interrupted, the battery can provide power supply to ensure that the equipment runs normally.Battery Heating Board FunctionsAccording to actual conditions, the battery heating board can be used in frigid area. The temperature control switch controls whether the battery heating board is connected or not. When the temperature inside the battery cabinet is lower than -5C , the battery heating board starts to work. When the temperature inside the battery cabinet is higher than 15C , the battery heating board stops working.

Subrack Configuration

CabinetSubrackAmountConfigurationDescriptionBC8910BB2011MandatoryDCPD61MandatoryeBBU1MandatoryBCIF1/BCOF1(FAN)1MandatoryLPU1OptionalBattery group1 ~ 2OptionalPC8910BBattery group1 ~ 4MandatoryRC8910BDPM101MandatoryRSU1 ~ 7/1 ~ 9MandatoryBRF1(FAN)1MandatoryBattery group1OptionalB2011MandatoryDPM121MandatoryeBBU1Optional

***