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Zte ZXSDR R8882 L268, User Manual

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Zte ZXSDR R8882 L268 User Manual Download Page 37

Chapter 4 Product Installation

Figure 4-8 Fastening ZXSDR R8882 L268

1.

Insulation washer

2.

Spring washer

3.

Bolt

The ZXSDR R8882 L268 is installed on wall, as shown in

Figure 4-9

.

Figure 4-9 ZXSDR R8882 L268 Is Installed On Wall

– End of Steps –

4-13

SJ-20110104194923-001|2011-01-19(R1.0)

ZTE Proprietary and Confidential

Summary of Contents for ZXSDR R8882 L268

Page 1: ...emote Radio Frequency Unit User Manual Version V2 00 ZTE CORPORATION No 55 Hi tech Road South ShenZhen P R China Postcode 518057 Tel 86 755 26771900 Fax 86 755 26770801 URL http ensupport zte com cn E mail support zte com cn ...

Page 2: ...non infringement ZTE CORPORATION and its licensors shall not be liable for damages resulting from the use of or reliance on the information contained herein ZTE CORPORATION or its licensors may have current or pending intellectual property rights or applications covering the subject matter of this document Except as expressly provided in any written license between ZTE CORPORATION and its licensee...

Page 3: ...1 3 1 Physical Indices 3 1 3 2 Working Environment 3 1 3 3 Bandwidth 3 1 3 4 Power Requirements 3 2 3 5 Power Consumption 3 2 3 6 Transmission Index 3 2 3 7 Performance Indices 3 2 3 8 Electromagnetic Compatibility 3 3 3 9 Reliability 3 6 Chapter 4 Product Installation 4 1 4 1 Safety Description 4 1 4 1 1 Safety Guide 4 1 4 1 2 Symbol Description 4 1 4 1 3 Safety Instructions 4 3 4 1 4 Hoisting Op...

Page 4: ...ction of External Cables 4 25 4 6 2 External Cable Installation Flow 4 26 4 6 3 Installing Power Cable 4 27 4 6 4 Installing Grounding Cable 4 29 4 6 5 Installing Fiber Between eBBU and eRRU 4 29 4 6 6 Installing Fibers Between eRRUs 4 31 4 6 7 Installing Environment Monitor Cable 4 32 4 6 8 Installing AISG Control Cable 4 33 4 6 9 Installing Antenna Feeder Jumper 4 34 Figures I Tables III Glossar...

Page 5: ...ications technology Familiarity with LTE wireless network and its related components is helpful What is in This Manual Chapter Summary Chapter 1 FCC Statement Introduces the FCC statements that this device complies with Chapter 2 Product Overview Describes product characteristic interfaces indicators Chapter 3 Product Technical Indices Describes the technical indices of the product Chapter 4 Produ...

Page 6: ...II SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 7: ...ncy energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Caution Changes or modifications to this unit not expressly approved by the party res...

Page 8: ...ZXSDR R8882 L268 User Manual This page intentionally left blank 1 2 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 9: ...6 Product External Interfaces 2 7 Product Indicators 2 9 2 1 Distributed eNodeB Solution To supply customers with more competitive communication equipment and solution in the market ZTE develops and promotes ZTE SDR eBBU baseband unit and eRRU remote radio unit distributed eNodeB solution timely which jointly perform LTE eNodeB service ZTE distributed eNodeB solution is shown in Figure 2 1 2 1 SJ ...

Page 10: ...ted on steel tower on building top or on wall etc It s more flexible in selecting installation site and not restricted by the space of equipment room It can help operators to deploy network rapidly It can also save the fees of renting equipment room and the network operation cost 3 Convenient in upgrade and capacity expansion saving the initial stage cost of the network eRRU can be mounted as clos...

Page 11: ...odeB In this way operators management can be simplified and several eNodeBs to be invested can be integrated into one eNodeB multimode eNodeB The operators can select the evolution direction of the future network more flexibly 2 2 Product Position in Network ZXSDR R8882 L268 is a remote radio unit eRRU of distributed eNodeB The signal is transmitted or received through ZXSDR R8882 L268 to and from...

Page 12: ...s transmitted or received through ZXSDR R8882 L268 to from base band processing unit for further processing via standard CPRI interface The product basic functions are listed below l Supports the configuration of 5 MHz 10 MHz 15 MHz and 20 MHz scalable bandwidth l R8882 L188 supports 1710 MHz 1785 MHz uplink 1805 MHz 1880 MHz downlink l R8882 L708 supports 698 MHz 716 MHz uplink 728 MHz 746 MHz do...

Page 13: ...Figure 2 3 Product Overall Appearance 2 6 Installation Scenario The ZXSDR R8882 L268 usually installed on wall or on pole or on gantry 2 7 Product Networking ZXSDR R8882 L268 supports star networking mode with eBBU as shown in Figure 2 4 2 5 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 14: ...8 supports system operation and maintenance remotely or locally Operate and Maintain System Remotely Remotely operates and maintains system by using NetNumen management system as shown in Figure 2 5 Figure 2 5 Operate and Maintain System Remotely 2 6 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 15: ...inal LMT software kit as shown in Figure 2 6 Figure 2 6 Operate and Maintain System Locally 2 9 Product External Interfaces The ZXSDR R8882 L268 external interfaces are shown in Figure 2 7 and Figure 2 8 Figure 2 7 Product External Interfaces and Grounding Terminal 2 7 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 16: ...9 ED 3 AISG AISG device interface 8 cores aviation socket 4 OPT1 eBBU Interface LC type optical interface 5 OPT2 Reserved LC type optical interface 6 ANT4 TX1 RX1 Antenna TX RX interface on channel 1 50 Ohm DIN 7 16 Connector 7 ANT3 RX3 Antenna RX interface on channel 3 50 Ohm DIN 7 16 Connector 8 Grounding Terminal 9 ANT2 RX2 Antenna RX interface on channel 2 50 Ohm DIN 7 16 Connector 10 ANT1 TX0...

Page 17: ... 2 9 Figure 2 9 Product Indicators Table 2 2 shows the detailed information of the indicators Table 2 2 Product Indicator Description Name Color Meaning Working Mode RUN Green Running status l Blinking every 1 5 second physical link in the process of initialization l Blinking every 0 07 second the link between eBBU and eRRU is in the process of establishment or the link is broken l Blinking every ...

Page 18: ...ace is in good state OPT2 Green Optical interface running indicator l Solid ON physical link is good logical link is abnormal l OFF physical link is abnormal l Blinking every 0 3 second interface is in good state VSWR1 Red Transmission channel 1 VSWR indicator l Solid ON there are VSWR alarms l OFF there is no VSWR alarm VSWR2 Red Transmission channel 4 VSWR indicator l Solid ON there are VSWR ala...

Page 19: ...1 Physical Indices Item Index Dimension 380 mm x 320 mm x 140 mm HxWxD Weight 20 kg 3 2 Working Environment Item Index Temperature 40 55 Working Relative Humidity 5 100 Temperature 55 70 Storage Relative Humidity 10 100 Ground Less than 0 1Ω between grounding terminal and device terminal Waterproof Dustproof IP65 3 3 Bandwidth ZXSDR R8882 L268 supports 5 MHz 10 MHz 15 MHz and 20 MHz 3 1 SJ 2011010...

Page 20: ...nterface type Speed Standard CPRI interface 2 SFP LC 2x3 072 Gbps or 2x2 4576 Gbps CPRI V4 1 3 7 Performance Indices Operation Frequency Band The operation radio frequency band of ZXSDR R8882 L268 is 2500 MHz 2570 MHz uplink 2620 MHz 2690 MHz downlink Output Power The TOC output power of ZXSDR R8882 L268 is 2x30 W Receiver Sensitivity The receiver sensitivity of ZXSDR R8882 L268 is shown in Table ...

Page 21: ...pment under test EUT works normally under pre scheduled method there is no information loss of user control function and the saved data and the communication channel is still available l If the EUT is a transmitter only test should be done under idle mode and there is no unintentional radiation during the test 2 Rule B l A communication channel is set up for the test and it is always available dur...

Page 22: ...y Decision Rule Basic test 1 kV 5 kHz Rule B Enhanced test 2 kV 5 kHz Rule B signal generator waveform 5 50ns Lightning Tolerance Signal Type Nominal Required Antenna feeder port 10 kA 5 times The 10 KA protection is guaranteed by the duplex of the RF module An external lightning protection unit is needed for the higher protection other than 10 KA DC power port external SPD 20 kA 5 times Residual ...

Page 23: ...4 dBuV Voltage or40 dBuV 30 dBuA Current 74 dBuV 64dBuV Voltage or 30 dBuV 20 dBuA Current 0 5 MHz 30 MHz 74 dBuV Voltage or 30dBuA Current 64dBuV Voltage or 20dBuA Current RF Electromagnetic Field Conducted Immunity Frequency range Voltage Feature Decision Rule 0 15 MHz 80 MHz 10 V 80 AM 1kHz Rule A Surge Immunity Open circuit Voltage Site Type Wire Wire Wire Ground DC power 0 5 1 Long distance w...

Page 24: ...ZXSDR R8882 L268 User Manual 3 9 Reliability Item Characteristics MTBF 34 0000 hours MTTR 1 hour Availability 99 999842 3 6 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 25: ...ring the operation and maintenance of the equipment all the safety rules and related operation procedures on the site must be strictly abided by to avoid body injuries or equipment damages The safety precautions introduced in this manual are only supplementary to the local safety specifications ZTE should in no way be liable for any losses or damages caused by violation of the universal safety ope...

Page 26: ...avoided will result in death or serious injury This signal word is to be limited to the most extreme situations Warning This sign means that there may be a major or serious accident equipment damage or interruption of key services if you ignore this safety warning Caution Indicates a potentially hazardous situation which if not avoided could result in minor or moderate injury It may also be used t...

Page 27: ...c Electricity Caution The static electricity generated by human body can damage the electrostatic sensitive components on the circuit board such as the large scale integrated circuit IC Accumulated electrostatic charges ESC derive from friction created by human body movements In a dry environment the static voltage carried by a human body can be up to 30 kV and can remain in the human body for a l...

Page 28: ...he part has a marking indicating that this part is hot It is permitted to use the symbol IEC60417 5041 DB 2002 10 to provide this information Hoisting Heavy Objects Warning Do not walk about right under the boom and the hoisted objects when they are being hoisted l When disassembling heavy equipment or moving and replacing equipment make sure facilities with proper hoisting capability are in place...

Page 29: ...unless instructed by professionals on site Replacing the parts or modifying the equipment may give rise to extra danger Therefore never replace any parts or modify the equipment by any means unless otherwise authorized To ensure your safety please contact ZTE Corporation if you have any problem 4 1 4 Hoisting Operation Instructions If it is required to hoist eRRU to the tower refer to the followin...

Page 30: ...g and obtained certification l The engineering supervisor should be familiar with the materials tools and operation methods used in the installation l The engineering supervisor should be familiar with the installation flow and installation methods of each component l The engineering supervisor should follow the Safety First principle to ensure the smooth completion of installation Requirements on...

Page 31: ...3 Unpacking and Checking Flow Figure 4 2 shows the flow of unpacking and checking Refer to Unpacking and Checking Manual in the ZXSDR R8882 L268 engineering materials for detailed steps and precautions 4 7 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 32: ...er Manual Figure 4 2 Unpacking and Inspection Flow 4 2 4 Installation Accessories All the related installation accessories are shown in Table 4 2 4 8 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 33: ... mount wall mounting components on the pole and the ZXSDR R8882 L268 is mounted on wall mounting components Expansion mounting components It is used to mount the third ZXSDR R8882 L268 on the wall mounting components LPU mounting components It is used to mount LPU on the pole 4 2 5 Installation Flow Figure 4 3 shows the installation flow 4 9 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary an...

Page 34: ...ave the following space for product future maintenance l Front side 600 mm l Back side 40 mm l left and right side 100 mm l UP and down side 250 mm Steps 1 Mark on installation positions based on layout marking template on wall as shown in Figure 4 4 and then drilling holes 4 10 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 35: ...hown in Figure 4 5 Figure 4 5 Installing Wall mounting Components 1 Hex Bolt 2 Spring Washer 3 Flat Washer 4 Insulation Washer 5 Wall Mounting components 6 Insulation Plate 7 Expansion Bolt The wall mounting components is installed on the wall as shown in Figure 4 6 4 11 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 36: ... components on the notch department as shown in Figure 4 7 Figure 4 7 Hung Device On The Wall mounting Components 4 Mount the ZXSDR R8882 L268 onto the wall mounting components and then fasten it with the M6 bolts as shown in Figure 4 8 4 12 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 37: ...R R8882 L268 1 Insulation washer 2 Spring washer 3 Bolt The ZXSDR R8882 L268 is installed on wall as shown in Figure 4 9 Figure 4 9 ZXSDR R8882 L268 Is Installed On Wall End of Steps 4 13 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 38: ... Figure 4 10 Fixing Wall mounting components and Pole Clips 2 Fixing the wall mounting components and pole clips on the pole as shown in Figure 4 11 Figure 4 11 Fixing Wall mounting Components and Pole Clips On Pole 1 Bolt 2 Spring washer 3 Flat washer 4 Wall mounting components 5 Pole Clips 4 14 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 39: ... Hung the Device On the Wall mounting Components 4 Fixing the device on the wall mounting components as shown in Figure 4 13 Figure 4 13 Fixing The Device On The Wall mounting Components ZXSDR R8882 L268 is installed firmly on the pole as shown in Figure 4 14 4 15 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 40: ...ng Steps 1 Fixing the wall mounting components and pole clip together as shown in Figure 4 15 Figure 4 15 Fixing Wall mounting components and Pole Clips 2 Fixing the wall mounting components and pole clips on the pole as shown in Figure 4 16 4 16 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 41: ...ting components 5 Pole Clips 3 Hung the devices on the notch part of the wall mounting components respectively as shown in Figure 4 17 Figure 4 17 Hung the Devices On the Wall mounting Components 4 Fixing the devices on the wall mounting components as shown in Figure 4 18 4 17 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 42: ...e installed firmly on the pole as shown in Figure 4 19 Figure 4 19 ZXSDR R8882 L268 are Installed On Pole End of Steps 4 4 3 One To Three Mounting Steps 1 Fixing the wall mounting components and pole clip together as shown in Figure 4 20 4 18 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 43: ...own in Figure 4 21 Figure 4 21 Fixing Wall mounting Components and Pole Clips On Pole 1 Bolt 2 Spring washer 3 Flat washer 4 Wall mounting components 5 Pole Clips 3 Fixing the third wall mounting components by using the expansion components to the other two ones as shown in Figure 4 22 4 19 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 44: ... on the notch part of the wall mounting components respectively as shown in Figure 4 23 Figure 4 23 Hung the Devices On the Wall mounting Components ZXSDR R8882 L268 are installed firmly on the pole as shown in Figure 4 24 4 20 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 45: ...ps 4 5 Mounting On Gantry Steps 1 Assemble the gantry a Install the vertical shaft and the bottom plate by using the M5 x 16 screw as shown in Figure 4 25 Figure 4 25 Installing The Vertical Shaft And The Bottom Plate 4 21 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 46: ...e slanted rack by using the M5 x 16 screw as shown in Figure 4 27 Figure 4 27 Installing The Slanted Rack 2 Drill holes a According to the engineering design drawing determine the installation position of the gantry and mark installation holes by using the marking pen Figure 4 28 shows the installation holes of the gantry 4 22 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 47: ...t generated during the drilling of holes c Put the expansion sleeve onto the metal cone of the expansion bolt fasten the nut slightly strike the expansion bolt into the installation hole by using the rubber hammer fasten the nut tightly to make the bolt fully expanded and then remove the nut as shown in Figure 4 29 Figure 4 29 Installing The Expansion Bolt 3 Install the gantry 4 23 SJ 201101041949...

Page 48: ...ing screw as shown in Figure 4 31 Figure 4 30 Installing The Gantry On The Concrete Floor Figure 4 31 Installing The Gantry On The Wooden Floor 4 Install the wall mounting components on the gantry 5 Install the ZXSDR R8882 L268 on the wall mounting components The device is installed firmly on the gantry as shown in Figure 4 32 4 24 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confiden...

Page 49: ... 4 3 Connection of ZXSDR R8882 L268 External Cables Cable type Connection relation Description Power cable Connects the ZXSDR R8882 L268 power interface to the power supply equipment interface One end is circular 6 core cable connector hole with plastic cover the other end is reserved for power cable The length of cable is based on the engineering survey 4 25 SJ 20110104194923 001 2011 01 19 R1 0 ...

Page 50: ... For the environment monitor cable end A is PIN header End B with 3m length in total is made depending on the field engineering conditions AISG cable Connects the ZXSDR R8882 L268 debugging interface AISG AISG is used to provide the RS485 signal and the DC voltage output Antenna jumper Connects ZXSDR R8882 L268 to main feeder The RF jumper usually uses the finished 1 2 jumper with 2m length The ju...

Page 51: ... is used for ZXSDR R8882 L268 cabinet A power cable is provided for the equipment One end is circular 6 core cable connector hole with plastic cover the other end is reserved for power cable The length of cable is based on the engineering survey 4 27 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 52: ...e is adopted the blue core cable stands for 48 V and the black core cable stands for 48 V GND 2 If the four core cable is adopted the two blue core cables connected in parallel stand for 48 V and the black core cables connected in parallel stand for 48 V GND Steps 1 Connect end A of power cable with DC IN interface located at the bottom of ZXSDR R8882 L268 2 Strip the protective coat of end B and ...

Page 53: ...r and fix a copper lug on the a grounding bolt of the ZXSDR R8882 L268 cabinet 2 Connect the other copper lug to the earth networking copper bar and fix it with bolts as shown in Figure 4 36 Figure 4 36 Grounding Copper Bar 3 Attach the label on the grounding cable 4 Measure the grounding resistance and make sure it is less than 5 ohms End of Steps 4 6 5 Installing Fiber Between eBBU and eRRU Prer...

Page 54: ...nector of eBBU Steps 1 Attach labels at both ends of the fiber 2 Adjust the side of end A with the color mark and insert fiber interface and screw down the nuts as shown in Figure 4 38 Figure 4 38 Installing Fibers 1 Color mark 3 Connect end A of the fiber to the baseband RF fiber interface LC1 2 of ZXSDR R8882 L268 Connect end B of the fiber which is a DLC connector to the eBBU optical connector ...

Page 55: ...268s 1 Outdoor sealing component On interconnection between ZXSDR R8882 L268s connect two baseband RF fiber inter faces OPT1 2 for two ZXSDR R8882 L268s by using a fiber Steps 1 Attach labels at both ends of the fiber 2 Make the equipment and the side with color mark face to you Insert the fiber connector into optical interface and screw down the nuts as shown in Figure 4 40 Figure 4 40 Installing...

Page 56: ...nsion accesses for external dry contact monitor End A is circular 8 core plug and end B is made depending on actual conditions The total length is 3m Figure 4 41 shows the structure of environment monitor cable Figure 4 41 Environment Monitor Cable The connector connecting the environment monitoring cable to ZXSDR R8882 L268 is 8 core straight welded connector pin mounted on panel The connector ap...

Page 57: ...Note Connect the first dry contact of eRRU to outdoor DC lightning protection box Steps 1 Connect end A of environment monitor cable to environment monitor interface of ZXSDR R8882 L268 cabinet 2 Connect end B of environment monitor cable to external monitor part or dry contact 3 Attach the labels on end B End of Steps 4 6 8 Installing AISG Control Cable Context AISG is used to control the electri...

Page 58: ...erface AISG and screw down the bolt 2 Connect end B to the control interface of electrical adjustment antenna and screw down the bolt End of Steps 4 6 9 Installing Antenna Feeder Jumper Context RF jumper is a cable segment that connects main feeder and antenna feeder interface of ZXSDR R8882 L268 cabinet The RF jumper is installed after the main feeder is installed completely The RF jumper usually...

Page 59: ...nect DIN connector male of RF jumper with DIN connector female of main feeder 2 Connect DIN connector male of RF jumper with RF antenna interface of cabinet 3 Seal the connectors to make them waterproof End of Steps 4 35 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 60: ...ZXSDR R8882 L268 User Manual This page intentionally left blank 4 36 SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 61: ...lled On Wall 4 13 Figure 4 10 Fixing Wall mounting components and Pole Clips 4 14 Figure 4 11 Fixing Wall mounting Components and Pole Clips On Pole 4 14 Figure 4 12 Hung the Device On the Wall mounting Components 4 15 Figure 4 13 Fixing The Device On The Wall mounting Components 4 15 Figure 4 14 ZXSDR R8882 L268 Is Installed On Pole 4 16 Figure 4 15 Fixing Wall mounting components and Pole Clips ...

Page 62: ...4 32 ZXSDR R8882 L268 Is Installed On Gantry 4 25 Figure 4 33 External Cable Installation Flow 4 27 Figure 4 34 Structure of Power Cable 4 28 Figure 4 35 Structure of Grounding Cable 4 29 Figure 4 36 Grounding Copper Bar 4 29 Figure 4 37 Fiber that connects ZXSDR R8882 L268 and eBBU 4 30 Figure 4 38 Installing Fibers 4 30 Figure 4 39 Cascade fiber between ZXSDR R8882 L268s 4 31 Figure 4 40 Install...

Page 63: ... channel Selectivity 3 3 Table 4 1 Safety Symbols and Their Descriptions 4 1 Table 4 2 Installation Accessories Description 4 9 Table 4 3 Connection of ZXSDR R8882 L268 External Cables 4 25 Table 4 4 Color and Definition of Inner Core of the Power Cable 4 28 Table 4 5 Cable Pin Description 4 32 Table 4 6 Meaning of Sequence Number of AISG Control Cable 4 34 III SJ 20110104194923 001 2011 01 19 R1 ...

Page 64: ...Tables This page intentionally left blank IV SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

Page 65: ...tion MTBF Mean Time Between Failures MTTR Mean Time To Repair QAM Quadrature Amplitude Modulation QPSK Quadrature Phase Shift Keying RF Radio Frequency SDR Software Defined Radio eBBU evolved Base Band Unit eNodeB Evolved NodeB eRRU evolved Remote Radio Unit V SJ 20110104194923 001 2011 01 19 R1 0 ZTE Proprietary and Confidential ...

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