ZTE RSUC1930 CDMA Remote Radio Unit User Manual
ZTE Corporation CDMA Remote Radio Unit Users Manual
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Users Manual
ZXSDR RSUC Radio System Unit of CDMA with 1T2R User Manual Version V1.00 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 LEGAL INFORMATION Copyright © 2010 ZTE CORPORATION. The contents of this document are protected by copyright laws and international treaties. Any reproduction or distribution of this document or any portion of this document, in any form by any means, without the prior written consent of ZTE CORPORATION is prohibited. Additionally, the contents of this document are protected by contractual confidentiality obligations. All company, brand and product names are trade or service marks, or registered trade or service marks, of ZTE CORPORATION or of their respective owners. This document is provided “as is”, and all express, implied, or statutory warranties, representations or conditions are disclaimed, including without limitation any implied warranty of merchantability, fitness for a particular purpose, title or 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, the user of this document shall not acquire any license to the subject matter herein. ZTE CORPORATION reserves the right to upgrade or make technical change to this product without further notice. Users may visit ZTE technical support website http://ensupport.zte.com.cn to inquire related information. The ultimate right to interpret this product resides in ZTE CORPORATION. Revision History Revision No. Revision Date Revision Reason 25/10/2010 25/05/2010 R1.0 Serial Number: SJ-20101019140047-002 FCC & IC STATEMENT This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency 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. Confidential and Proprietary Information of ZTE CORPORATION ZXSDR RSUC User Manual This page is intentionally blank. II Confidential and Proprietary Information of ZTE CORPORATION Declaration of RoHS Compliance To minimize the environmental impact and take more responsibility to the earth we live, this document shall serve as formal declaration that ZXSDR RSUC manufactured by ZTE CORPORATION are in compliance with the Directive 2002/95/EC of the European Parliament - RoHS (Restriction of Hazardous Substances) with respect to the following substances: � Lead (Pb) � Mercury (Hg) � Cadmium (Cd) � Hexavalent Chromium (Cr (VI)) � PolyBrominated Biphenyls (PBB’s) � PolyBrominated Diphenyl Ethers (PBDE’s) … The ZXSDR RSUC manufactured by ZTE CORPORATION meet the requirements of EU 2002/95/EC; however, some assemblies are customized to client specifications. Addition of specialized, customer-specified materials or processes which do not meet the requirements of EU 2002/95/EC may negate RoHS compliance of the assembly. To guarantee compliance of the assembly, the need for compliant product must be communicated to ZTE CORPORATION in written form. This declaration is issued based on our current level of knowledge. Since conditions of use are outside our control, ZTE CORPORATION makes no warranties, express or implied, and assumes no liability in connection with the use of this information. Confidential and Proprietary Information of ZTE CORPORATION ZXSDR RSUC User Manual This page is intentionally blank. II Confidential and Proprietary Information of ZTE CORPORATION Chapter Safety Description Table of Contents Safety Specifications Guide ................................................. 1 Safety Symbols ................................................................. 2 Safety Instructions ............................................................ 3 Safety Specifications Guide These safety instructions must be considered as supplementary for local safety regulations. The priority must be given to local safety regulations if there is any conflict between the two. The maintenance personnel must have the knowledge of safety operations and maintenance with required qualification and technical background. Warning: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: � This device may not cause harmful interference. � This device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The equipment is intended for installation in RESTRICTED ACCESS LOCATIONS. All the operation and maintenance personnel must follow the safety precautions and instructions provided by ZTE Corporation to avoid any accident. Confidential and Proprietary Information of ZTE CORPORATION ZXSDR RSUC User Manual Note: ZTE Corporation does not bear any liabilities incurred because of violation of the universal safety operation requirements, or violation of safety standards for designing, manufacturing and using the equipment. FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment .This equipment should be installed and operated with minimum distance 4m between the radiator& your body. Safety Symbols Table 1 lists safety symbols. They are to prompt the user of the safety precautions to be observed during ZXSDR RSUC operation and maintenance. TABLE 1 SAFETY SYMBOLS DESCRIPTION Safety Symbols Meaning No smoking: Smoking is forbidden No flammables: No flammables can be stored. No touching: Do not touch. Universal alerting symbol: General safety attentions. Electric shock: Risk of electric shock. Electrostatic: The device may be sensitive to static electricity. Microwave: Beware of strong electromagnetic field. Confidential and Proprietary Information of ZTE CORPORATION Chapter 1 Safety Description Safety Symbols Meaning Laser: Beware of strong laser beam. Scald: Beware of scald. Amongst these safety symbols, the universal alarm symbols are classified into three levels: danger, warning, and caution. The formats and meanings of the three levels are described as below: Danger: Indicates a potentially hazardous situation which, if not avoided, will result in death or serious injury of people, or equipment damages and breakdown. Warning: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Caution: Indicates a potentially hazardous situation which, if not avoided, could result in serious injuries, equipment damages or interruption of part services. Safety Instructions This section describes the safety instructions related to electrical safety, antistatic, heavy objects and modules. Electrical Safety Instructions The following are the electrical safety instructions about tools, high voltage, power cables, holes and lightning: � Tools Use special tools rather than common tools for high-voltage and AC operations. � High Voltage Confidential and Proprietary Information of ZTE CORPORATION ZXSDR RSUC User Manual Danger: High voltage is hazardous. Direct or indirect contact with high voltage or main supply using a wet object could result in death. � � � � � Strictly follow local safety rules to install AC power devices. Installation staff must be qualified for performing high-voltage and AC operations. Do not wear any watch, hand chain, bracelet, ring or any other conductive objects during such operations. Prevent moisture from accumulating on the equipment during operations in a damp environment. Power Cable Warning: Never install or uninstall power cables while they are live. Otherwise, the power cable, when contacting a conductor, may result in sparks or electric arc causing a fire or even damage to eyes. � � � Make sure of shutting off power supply before installing or disconnecting a power cable. Before connecting the power cable, make sure that the connecting cable and its label are appropriate for the actual installation requirements. Drilling Holes Warning: It is not allowed to drill chassis holes without permission. � � � � Unqualified drilling could damage wiring and cables inside the chassis. Additionally, metal pieces inside the chassis created by the drilling could result in a short circuit. Use insulation protection gloves and first move cables inside a chassis away when drilling is necessary on a chassis. Protect eyes during drilling as dust or flying debris may damage eyes. Clean any debris in time after drilling. Lightning Danger: Do not perform high-voltage, AC, iron tower or mast operations in a thunderstorm. Confidential and Proprietary Information of ZTE CORPORATION Chapter 1 Safety Description Thunderstorms would give rise to a strong electromagnetic field in the atmosphere. Therefore, the equipment must be grounded and protected in time against lightning strikes. Antistatic Safety Instructions Electrostatic: Static electricity produced by human body can damage static-sensitive components on circuit board, such as large-scale integrated circuits. � Friction caused by human body activities is the root cause of electrostatic charge accumulation. Static voltage carried by a human body in a dry environment can be up to 30 kV, and can remain there for a long time. An operator with static electricity may discharge electricity through a component when he/she touches the conductor and causing damage. � Wear an antistatic wrist strap (the other end of wrist strap must be well grounded) before touching the equipment or holding a plug-in board, circuit board, Integrated Circuit (IC) chip or other devices, to prevent human static electricity from damaging sensitive components. � The antistatic wrist strap used must be subject to regular check. Do not replace the cable of an antistatic wrist strap with any other cables. � Do not contact static-sensitive modules with any object that easily generates static electricity. For example, friction of package bag, transfer box and transfer belt made from insulation plastic may cause static electricity on components. Discharge of static electricity may damage components when they contact a human body or the ground. � Modules should only contact materials such as an antistatic bag. Keep modules in antistatic bags during storage and transportation. � Discharge static electricity of the test device before use, that is, ground the test device first. � Do not place the module near a strong DC magnetic field, such as the cathode-ray tube of a monitor. Keep the module at least 10 cm away. Hoisting Heavy Objects Warning: When hoisting heavy objects, ensure that nobody is standing or walking under the hoisted object. � Ensure the hoister can meet hoisting requirements when disassembling heavy equipment, or moving and replacing equipment. � The installation personnel must be duly trained and qualified for hoisting operations. � Hoisting tools must be inspected and complete before service. Confidential and Proprietary Information of ZTE CORPORATION ZXSDR RSUC User Manual Unplugging/Plugging a Module Rack Mount Safety Instructions � Make sure that hoisting tools are fixed firmly on a sufficiently secured object or wall before the hoisting operation. � Give brief oral instructions during hoisting operations to prevent any mishap. � Never plug a module with excessive force, to ensure that the pins on the backplane do not get deformed. � Plug the module right into the slot and make sure module circuit faces do not contact each other lest any short circuit may occur. � Keep hands off the module circuit, components, connectors and cable trough when holding a module. Rack Mount Instructions - The following or similar rack-mount instructions are included with the installation instructions: � Elevated Operating Ambient - If installed in a closed or multiunit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient. Therefore, consideration should be given to installing the equipment in an environment compatible with the maximum ambient temperature (Tma) specified by the manufacturer. � Reduced Air Flow - Installation of the equipment in a rack should be such that the amount of air flow required for safe operation of the equipment is not compromised. � Mechanical Loading - Mounting of the equipment in the rack should be such that a hazardous condition is not achieved due to uneven mechanical loading. � Circuit Overloading - Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of the circuits might have on overcurrent protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing this concern. � Reliable Earthing - Reliable earthing of rack-mounted equipment should be maintained. Particular attention should be given to supply connections other than direct connections to the branch circuit (e.g. use of power strips). Other Safety Instructions Note: Do not perform maintenance or debugging independently, unless a qualified person is present. � Perform an airtight test before RRU delivery, and prohibit disassembling the RRU on site. � Replacing any parts or making any changes to the equipment might result in an unexpected danger. Therefore, be sure not to replace any parts or perform any changes to the equipment unless authorized otherwise. � Due to that RRU is in high temperature during running, the RRU should be installed in some regions out of operators' reach or strictly restricted. Confidential and Proprietary Information of ZTE CORPORATION Chapter 1 Safety Description � Contact ZTE office if you have any question, to ensure your safety. Confidential and Proprietary Information of ZTE CORPORATION ZXSDR RSUC User Manual This page is intentionally blank. Confidential and Proprietary Information of ZTE CORPORATION Chapter Product Descripition Table of Contents Overview.......................................................................... 9 Position in a Network ......................................................... 9 Outer View .......................................................................10 Production Functions..........................................................11 Production Features ...........................................................12 Overview ZTE Software Defined Radio (SDR) uses an architecture of separating the baseband part from the Radio Frequency (RF) part. This architecture features high integration, low consumption, flexible configuration and convenient installation & maintenance. The new generation ZTE CDMA Base Station (BS) products based on the SDR is the first SDR-based CDMA BS in the industry. It is able to help the operators have qualitative leap. The form of this product can be distributed BBU + RRU or BBU + RSU. The product form of ZTE SDR can be distributed BBU + RRU or BBU + RSU, macro BS or micro BS. ZXSDR RSUC is the RSU part of ZTE CDMA2000 distributed SDR Common BTS Platform Solution. It provides functions including RF modulation/demodulation, forward power amplification, reverse low noise amplification, RF performance measurement and carrier power control etc. With a smaller size and lighter weight, the ZXSDR RSUC has significant advantages for saving space, relocations, installation flexibility, and power savings. It designed for both indoor and outdoor applications. Position in a Network In CDMA mobile communication network, the relationship between ZXSDR RSUC and other network entities is shown in Figure 1. Confidential and Proprietary Information of ZTE CORPORATION ZXSDR RSUC User Manual FIGURE 1 ZXSDR RSUC POSITION IN A NETWORK The ZXSDR RSUC is an independent RF subsystem. Together with BBU , it forms the complete BTS.The BTS implements radio transmission with the MS through the CDMA2000 air interface. In addition, the BTS implements control of radio channels and communication with the BSC Outer View Figure 2 shows the outer view of ZXSDR RSUC. 10 Confidential and Proprietary Information of ZTE CORPORATION Chapter 2 Product Descripition FIGURE 2 OUTER VIEW OF ZXSDR RSUC Production Functions ZXSDR RSUC provides primary functions is shown as Table 2. Confidential and Proprietary Information of ZTE CORPORATION 11 ZXSDR RSUC User Manual TABLE 2 THE PRIMARY FUNCTIONS Function OF ZXSDR RSUC Description Band: 800MHz、1.9GHz、2.1GHz、2.0GHz(AWS)、 450MHz、420MHz、850MHz RF modulation/demodulation RF transceiver duplexer RF Low noise amplification for received RF signal Amplification for transmitted RF signal RF transceiver Baseband-RF interface: compliant with Common Public Radio Interface (CPRI) protocol Interface Air interface: compliant with IS-2000 Release A and IS-856-A Electronic label Remote upgrade of software version for FPGA/BOOT/DSP/CPU Remote reset of service boards Equipment maintenance and test RSSI query Automatic calibration Reverse spectrum query: querying the reverse received signal spectrum of each carrier Power amplification control and protection: over-power, over-temperature, and standing wave alarm Reliability Reverse voltage protection Scenario Indoor and outdoor applications Production Features Here are the product features of ZXSDR RSUC: � Easy transportation and installation will save labor and building costs � Lower power consumption reduces installation of power expenditures and saves on electricity charges. � Suitable for complicated base station environments Supports star and chain networks between baseband and RF to provide more convenient solutions for complicated base station environments. 12 Confidential and Proprietary Information of ZTE CORPORATION Chapter Technical Descripition Table of Contents System Architecture ..........................................................13 Signal Processing Flow .......................................................14 Technical Specifications ......................................................14 System Architecture A ZXSDR RSUC consists of the transmit/receive signal board (RTR), power amplifier (PA), duplexer (DFL), and power supply (RPDC).Figure 3 shows the schematic diagram of the ZXSDR RSUC. FIGURE 3 SCHEMATIC DIAGRAM OF THE ZXSDR RSUC The functions of ZXSDR RSUC’s subsystem is shown as Table 3. Confidential and Proprietary Information of ZTE CORPORATION 13 ZXSDR RSUC User Manual TABLE 3 THE FUNCTIONS OF SUBSYSTEM Part Description RTR RTR, the unit that integrates the processor, clock, CPRI interface, DPD digital predistortion, RF transmitting and receiving functions, is the core unit of the ZXSDR RSUC. � � � PA � � � � DFL RPDC Amplifies downlink RF signal input via the RTR and then sends the signal to the DFL Provides digital pre-distortion feedback signals for the RTR Provides a PA output enable/disable interface Performs filtering and low noise amplification of the reverse CDMA signal from the antenna Filters the forward RF signal to be sent Reports LNA alarms to the RTR In the case of main/diversity combined cabinets, the main receive LNA output end of the DFL has the power splitter function and reserves an external port (Rx out) Converts -48V DC input power supply to DC power supply required by the PA, RTR, or DFL Signal Processing Flow The internal signal processing flow of ZXSDR RSUC is as below: � Forwardlink processing The business data from BBU enters the RTR, and then for intermediate frequency processing. After the power amplification sent to the antenna for transmission. � Reverselink processing The reverse CDMA signals from the antenna are converted to baseband digital signal by RTR, then send to BBU. Technical Specifications Physical Indices Dimension The dimensions of ZXSDR RSUC in mm are : 482.6(H) × 88 (W) × 360.0 (D). 14 Confidential and Proprietary Information of ZTE CORPORATION Chapter 3 Technical Descripition Weight Weight of a ZXSDR RSUC : < 10 kg (22.05 pounds). Power Indices � Power Supply -48V DC Voltage range: -37V~-62V. � Power Consumption In the case of 1S-1T, 4C/S, 15W/C, the total power consumption of the equipment is 270 W. Capacity Indices ZXSDR RSUC Capacity Indices is shown as Table 4 TABLE 4 ZXSDR RSUC CAPACITY INDICES Item Carriers supported 8C 1X 4C 1X + 4C DO the MAX 8C/1S-1T Temperature and Humidity Temperature: -40 ℃~+55 ℃. The change frequency must be less than 0.5 ℃/min. Relative humidity: 5% ~95% Environmental Classes � Grade Of Protection: IP55 � Grounding Requirements: Joint grounding resistance less 1W; BTS grounding resistance less 5 W. � Noise: Noise of working environment: less 65 dBA Confidential and Proprietary Information of ZTE CORPORATION 15 ZXSDR RSUC User Manual Reliability Indices � Mean Time Between Failures (MTBF) : > 100,000 hours � MTTR (Mean Time To Repair): < 0.5 hour � Availability: > 99.999% RF Indices RF indices of the ZXSDR RSUC comply with 3GPP2 C.S0010-C, Recommended Minimum Performance Standards for cdma2000 Spread Spectrum Base Station and 3GPP2 C.S0032-A, Recommended Minimum Performance Standards for CDMA2000 High Rate Packet Data Access Network. Table 5 illustrates the 800 MHz transmitter indices. TABLE 5 800 MHZ TRANSMITTER INDICES 16 Name Index Operating band 800 MHz (Band Class 0) Transmitter output frequency tolerance ± 0.01 ppm Occupied channel bandwidth 1.23 MHz (Band Class 0) Output power at the Top of Cabinet (TOC) 60W Total transmit power The total transmit power is within +2 dB and -2 dB of the manufacturer’s rated power. Modulation mode Quadrature amplitude modulation Conducted spurious emission and radiated spurious emission suppression < -45dBc @±750kHz offset Center Freq (RBW 30kHz) < -60dBc @±1.98MHz offset Center Freq(RBW 30kHz) >4MHz OFFSET: < -36dBm(RBW 1kHz) @ 9KHz < f < 150KHz <-36dBm(RBW 10kHz) @ 150KHz < f < 30MHz <-30dBm(RBW 1MHz) @ 1GHz < f < 12.5GHz 4-6.4MHz OFFSET: <-36dBm(RBW 1kHz) @ 30MHz < f < 1GHz 6.4M TO 16M OFFSET: <-36dBm(RBW 10kHz) @ 30MHz < f < 1GHz >16MHz OFFSET: <-36dBm(RBW 100kHz) @ 30MHz < f < Confidential and Proprietary Information of ZTE CORPORATION Chapter 3 Technical Descripition Name Index 1GHz Transmitter intermodulation performance If one BTS transmits at the rated power but another BTS’ output power is 30 dB less than the former’s rated power. When the powers of two BTSs are combined on the antenna port, the generated intermodulation spurious emission meets the conducted spurious emission requirement. The IF difference of the transmit signals of two BTSs is 1.25M. Pilot time tolerance The PN time tolerance falls within 3 us and the inter-carrier tolerance falls within 1 us. Time Tolerance/phase tolerance of pilot channel to other channels Time difference: < ±50 ns Phase difference: < 0.05 rad Waveform quality Rho is greater than 0.970 dBm with configuration of a single pilot. Pilot code domain power With the standard 9CH configuration, the pilot code domain power is in the range of -7.0±0.5 dB. Inactive channel code domain power With the standard 9CH configuration, the inactive channel code domain power is less than -27 dB. DO MAC inactive channel code domain power With configuration of 13 FLUSs, the MAC inactive channel code domain power is less than -29.5 dB (type 2). DO DATA channel code domain power With configuration of 13 FLUSs at the rate of 614.44 kbs (test 1), the DATA channel code domain power is in the range of -15.5 dB to -14.5 dB. Pilot channel: Rho > 0.97 Wave quality of DO channels MAC channel: Rho > 0.912 DATA channel: Rho > 0.97 Radio frequency Front End SWR < 2.0 Table 6 illustrates the 1.9 GHz transmitter indices. TABLE 6 1.9 GHZ TRANSMITTER INDICES Name Index Operating band 1.9 GHz (Band Class 1) Transmitter output frequency tolerance ± 0.01 ppm Confidential and Proprietary Information of ZTE CORPORATION 17 ZXSDR RSUC User Manual Name Index Occupied channel bandwidth 1.25 MHz Output power at the Top of Cabinet (TOC) 60W Total transmit power The total transmit power is within +2 dB and -2 dB of the manufacturer’s rated power. Modulation mode Quadrature amplitude modulation Conducted spurious emission and radiated spurious emission suppression Transmitter intermodulation performance If one BTS transmits at the rated power but another BTS’ output power is 30 dB less than the former’s rated power. When the powers of two BTSs are combined on the antenna port, the generated intermodulation spurious emission meets the conducted spurious emission requirement. The IF difference of the transmit signals of two BTSs is 1.25 M. Pilot time tolerance The PN time tolerance falls within 3 us and the inter-carrier tolerance falls within 1 us. Time Tolerance/phase tolerance of pilot channel to other channels 18 < -45dBc @±885 kHz offset Center Freq (RBW 30kHz) < -55 dBc @±1.98 MHz offset Center Freq (RBW 30kHz) > 4 MHz OFFSET: < -36 dBm (RBW 1kHz) @ 9KHz < f < 150 kHz < -36 dBm (RBW 10kHz) @ 150 kHz < f < 30 MHz < -36 dBm (RBW 100kHz) @ 30 MHz < f < 1 GHz 4-16 MHz OFFSET: < -30 dBm (RBW 30kHz) @ 1 GHz < f < 12.5 GHz 16M-19.2M OFFSET: <-30dBm(RBW 300kHz) @ 1GHz < f < 12.5GHz >19.2MHz OFFSET: <-30dBm(RBW 1MHz) @ 1GHz < f < 12.5GHz Time difference: < ±50 ns Phase difference: < 0.05 rad Waveform quality Rho is greater than 0.990 dBm under the configuration of a single pilot. Pilot code domain power With the standard 9CH configuration, the pilot code domain power is in the range of -7.0±0.5 dB. Inactive channel code domain power With the standard 9CH configuration, the inactive channel code domain power is less than -27 dB. Confidential and Proprietary Information of ZTE CORPORATION Chapter 3 Technical Descripition Name Index DO MAC inactive channel code domain power With configuration of 13 FLUSs, the MAC inactive channel code domain power is less than -29.5 dB (type 2). DO DATA channel code domain power With configuration of 13 FLUSs at the rate of 614.44 kbs (test 1), the DATA channel code domain power is in the range of -15.5 dB to -14.5 dB. Pilot channel: Rho > 0.97 Wave quality of DO channels MAC channel: Rho > 0.912 DATA channel: Rho > 0.97 Radio frequency Front End SWR < 2.0 Table 7 illustrates the 800 MHz receiver indices. TABLE 7 800 MHZ RECEIVER INDICES Name Index Operating band 800 MHz (Band Class 0) Receiver sensitivity < -115 dBm Receiver dynamic range When the lower limit is the receiver sensitivity and the upper limit (noise level) equals 55 dBm/1.23MHz (Eb/N0 = 10 dB±1dB), the Frame Error Rate (FER) is lower than 1%. Noise figure < 3 Single tone desensitization In the presence of a single tone that is 50 dB above the CDMA signal level, and is at offset of ±750 kHz from the center frequency, the output power of the MS increases by no more than 3 dB ,and the FER is less than 1.5%. In the presence of a single tone that is 75 dB above the CDMA signal level, and is at offset of ±900 kHz from the center frequency, the output power of the MS increases by no more than 3 dB, and the FER is less than 1.5%. Intermodulation spurious response attenuation BAND 0: In the presence of two interfering tones that are 60 dB above the CDMA signal level, and are at offsets of +900 kHz, +1.7 MHz, -900 kHz and -1.7 MHz from the center frequency, the output power of the MS increases by no more than 3 dB, and the FER is less than 1.5%. Conducted spurious < -80 dBm, measured within the BTS Confidential and Proprietary Information of ZTE CORPORATION 19 ZXSDR RSUC User Manual Name emissions and radiated spurious emissions Radio frequency Front End SWR Index receive band < -60 dBm, measured within the BTS transmit band < 2.0 Table 8 illustrates the 1.9 GHz receiver indices. TABLE 8 1.9 GHZ RECEIVER INDICES Name Index Operating band 1.9G Hz (Band Class 1&14) Receiver sensitivity < -115 dBm Receiver dynamic range When the lower limit is the receiver sensitivity and the upper limit (noise level) equals - 55 dBm/1.23 MHz (Eb/N0 = 10dB±1dB), the Frame Error Rate (FER) is lower than 1%. Noise figure < 3 Adjacent channel selection (ACS) Band Class 6:> - 53dBm (± 2.5M) Single tone desensitization In the presence of a single tone that is 50 dB above the CDMA signal level, and is at offset of ± 750 kHz from the center frequency, the output power of the MS increases by no more than 3 dB ,and the FER is less than 1.5%. In the presence of a single tone that is 75 dB above the CDMA signal level, and is at offset of ± 900 kHz from the center frequency, the output power of the MS increases by no more than 3 dB, and the FER is less than 1.5%. Intermodulation spurious response attenuation In the presence of two interfering tones that are 60 dB above the CDMA signal level, and are at offsets of 1.25 MHz and 2.05 MHz, and -1.25 MHz and -2.05 MHz from the center frequency, the output power of the MS increases by no more than 3 dB, and the FER is less than 1.5%. Conducted spurious emissions and radiated spurious emissions < -80 dBm, measured within the BTS receive band < -60 dBm, measured within the BTS transmit band Radio frequency Front End SWR 20 < 2.0 Confidential and Proprietary Information of ZTE CORPORATION Chapter 3 Technical Descripition Interface Indices The interface indices of ZXSDR RSUC is shown as Table 9. TABLE 9 DESCRIPTION OF ZXSDR RSUC’S INTERFACES Type Description Index CPRI Fiber/Cable 2CPRI interfaces: 1 CPRI for BBU or upper-level RSU,1 CPRI for lower-level RSU UE Um interface 1 Tx/Rx,1 diversity receivers Confidential and Proprietary Information of ZTE CORPORATION 21 ZXSDR RSUC User Manual This page is intentionally blank. 22 Confidential and Proprietary Information of ZTE CORPORATION Chapter Hardware Decsripition Table of Contents Function...........................................................................23 Panel ...............................................................................23 Button .............................................................................24 Indicators.........................................................................25 Panel Interfaces ................................................................25 Function RSU provides the following functions: � Communication with the baseband subrack � Conversion between air interface RF signals and digital signals � RF signal amplification, transmission, and reception � Clock synchronization. Panel Figure 4 illustrates the ZXSDR RSUC panel. Confidential and Proprietary Information of ZTE CORPORATION 23 ZXSDR RSUC User Manual FIGURE 4 ZXSDR RSUC PANEL Button There is only one button (RST) on the ZXSDR RSUC panel.Table 10 describes the button. 24 Confidential and Proprietary Information of ZTE CORPORATION Chapter 4 Hardware Decsripition TABLE 10 ZXSDR RSUC PANEL BUTTON DESCRIPTION Button Description RST Reset button Indicators Table 11 describes ZXSDR RSUC panel indicators. TABLE 11 ZXSDR RSUC PANEL INDICATOR DESCRIPTION Indicator Color Meaning Description RUN Green Running status indicator Always on: The RSU is resetting or starting up. Blinking at 1 Hz: The RSU is functioning properly. Blinking at 5 Hz: The RSU is downloading version files. Off: The RSU fails the self-check. ALM Red Alarm indicator Off: There is on alarm or the RSU is resetting, starting up, or downloading version files. Blinking at 5 Hz: There is a critical alarm. Blinking at 1 Hz: There is a minor alarm. LNK Green Optical link status indicator Always on: The optical connection is normal. Off: The optical fiber fails. Blinking at 5 Hz: This link is used as the clock reference source and the phase lock loop (PLL) is in the fast capture state. Blinking at 0.25 Hz: This link is used as the clock reference source and the phase lock loop (PLL) is in the tracing state. RF Orange RF working Off: The RF has no output. status indicator On: The RF has output. Panel Interfaces Table 12 describes ZXSDR RSUC panel interfaces. Confidential and Proprietary Information of ZTE CORPORATION 25 ZXSDR RSUC User Manual TABLE 12 INTERFACES ON THE FRONT PANEL OF THE ZXSDR RSUC Interface End A End B Description ANT1(TX/RX) RSU Tx/Rx antenna Connects to the Tx/Rx antenna for the Tx/Rx major channel. ANT2(RX) RSU Rx antenna Connects to the antennal for the Rx minor antenna Rx out RSU RSU with expanded frequency points Frequency-point expansion output interface for outputting the Rx signals of the major channel. Rx in RSU with expanded frequency points RSU Frequency-point expansion input interface for inputting the Rx signals of the minor channel. TX1/RX1 RSU BBU or the upper-layer cascaded RSU Connects to the CPRI optical interface of BBU or the upper-layer cascaded RSU TX2/RX2 RSU Lower-layer cascaded RSU Connects to the CPRI optical interface of the lower-layer cascaded RSU DBG RSU PC or testing equipment (with a the testing board) Commissioning Ethernet interface and testing interface TEST RSU Testing equipment Tx testing signal interface MON RSU External equipment Provides four dry-contact input interfaces and RS-485 environment monitoring interface AISG RSU Antenna Connects to the AISG interface POWER RSU RF power of the power distribution module Power input interface 26 Confidential and Proprietary Information of ZTE CORPORATION Chapter Hardware Installation Table of Contents Installing the RSU Module...................................................27 Connecting RSU Monitoring Cable ........................................35 Installing Optical Fibers Between BBU and RSU......................36 Installing the Interconnected Cable Between BBU and RSU.................................................................................38 Installing the RF Jumper.....................................................40 Installing the RSU Module Prerequisites Context � Before installing the RF module, wear the ESD wrist strap to avoid damaging the RF module. � The RF cabinet has already been installed. Figure 5 shows the front panel of a ZXSDR RSUC. Confidential and Proprietary Information of ZTE CORPORATION 27 ZXSDR RSUC User Manual FIGURE 5 ZXSDR RSUC PANEL Steps 28 1. Determine the target slot, hold the handle of the module with one hand, support the lower back of the module with the other hand, and try to make parallel the module and the guiding plane, as shown in Figure 6. Confidential and Proprietary Information of ZTE CORPORATION Chapter 5 Hardware Installation FIGURE 6 STEP 1 2. Push the module slightly into the slot to more than half the depth of the slot, as shown in Figure 7. Confidential and Proprietary Information of ZTE CORPORATION 29 ZXSDR RSUC User Manual FIGURE 7 STEP 2 3. Change the place where exercise force and then push further the module with even force, as shown in Figure 8. 30 Confidential and Proprietary Information of ZTE CORPORATION Chapter 5 Hardware Installation FIGURE 8 STEP 3 4. Push the module until the inner side of the front panel closely touch the vertical shaft, as shown in Figure 9. Confidential and Proprietary Information of ZTE CORPORATION 31 ZXSDR RSUC User Manual FIGURE 9 STEP 4 5. Secure the module using five M5 x 20 screws, as shown in Figure 10. 32 Confidential and Proprietary Information of ZTE CORPORATION Chapter 5 Hardware Installation FIGURE 10 STEP 5 1. Fixing the cabinet M5x20 screws with 2. Fixing the grounding lug 6. Secure the ground lug. As shown in Figure 10, the M5 x 20 screws secures the ground lug of the RSU module to the ground points. END OF STEPS Result Figure 11 shows the completion of installing the RF module. Confidential and Proprietary Information of ZTE CORPORATION 33 ZXSDR RSUC User Manual FIGURE 11 RSU MODULE INSTALLED COMPLETELY Postrequisite After installing RSU modules, connect the RSU power cables to the RSU power interfaces.RSU power cables have been routed to proper slots, as shown in Figure 12. FIGURE 12 POWER CABLE CONNECTING 34 Confidential and Proprietary Information of ZTE CORPORATION THE RSU Chapter 5 Hardware Installation Connecting RSU Monitoring Cable Prerequisites Context � ZXSDR RSUC RF cabinet has already been installed. � The RSU module has already been installed. The RSU monitoring cable of the RF cabinet is routed to the right side of the RF cabinet in delivery, as shown in Figure 13. After the RSU module is installed, insert the terminal of the RSU monitoring cable to the MON (monitoring) interface of the RSU module. FIGURE 13 RSU MONITORING CABLE Note: If multiple RSU modules need to be monitored, only one RSU module needs to be connected to the RSU monitoring cable. Steps 1. Connect one end of the RSU monitoring cable to the MON (monitoring) interface of the RSU module and fasten the screw. 2. Bundle the RSU monitoring cable. Figure 14 shows the connected RSU monitoring cable. Confidential and Proprietary Information of ZTE CORPORATION 35 ZXSDR RSUC User Manual FIGURE 14 INSTALLING THE RSU MONITORING CABLE END OF STEPS Installing Optical Fibers Between BBU and RSU Prerequisites Context � The ESD wrist strap must be worn. � The baseband power cabinet and the RF cabinet have been independently installed. When the baseband power cabinet and the RF cabinet are installed side by side or they are far away from each other, you need to connect BBU and RSU using optical fibers. Pay attention to the following points when installing optical fibers: Steps 36 � Do not damage the optical fiber cladding during operations. � Protect optical fiber connectors and avoid contaminating them. � Do not forcibly bundle optical fibers. � Curve optical fibers at the turning. 1. Affix a temporary label. Confidential and Proprietary Information of ZTE CORPORATION Chapter 5 Hardware Installation Affix temporary labels to both ends of the new optical fiber to set up a mapping. If more than one optical fiber needs to be installed, use different labels to differentiate optical fibers. 2. Route optical fibers. i. Optical fibers go out from the side waterproof module of the baseband module and go through the routing apertures on the base. ii. Then, optical fibers go through the routing apertures on the base of the RF cabinet, traverse the waterproof modules, and connect to the six optical interfaces for RF modules. Figure 15 shows how optical fibers traverse the waterproof modules. FIGURE 15 WATERPROOF MODULE PASS THROUGH WHICH OPTICAL FIBERS 3. Insert optical fiber connectors. Insert optical fiber connectors according to the mapping on temporary labels. Caution: Insert optical fiber connectors tightly. 4. Bundle optical fibers. Bundle and secure optical fibers along the routing troughs, which complies with relevant regulations. 5. Affix an engineering label to an optical fiber. Remove the temporary label for the optical fiber and affix an engineering label. Confidential and Proprietary Information of ZTE CORPORATION 37 ZXSDR RSUC User Manual Caution: Protect an optical fiber with the winding tube when routing the optical fiber inside the cabinet. Protect an optical fiber with the corrugated pipe when routing the optical fiber outside the cabinet. END OF STEPS Installing the Interconnected Cable Between BBU and RSU Prerequisites Context � The ZXSDR RSUC cabinet has already been installed. � The BBU module and RSU module have already been installed. ZXSDR RSUCIn the system, optical fibers or SFP cables can be used to connect BBU and RSU. During the stacked installation of the ZXSDR RSUC, a 2 m SFP high-speed cable is recommended for interconnecting BBU and RSU. Figure 16 shows an SFP cable. FIGURE 16 HIGH-SPEED CABLE Steps 1. Affix temporary labels to both ends of the SFR cable, with markings 0-5 to set up one-to-one mapping with interfaces TX0RX0 to TX5RX5 of BBU and six TX/RX interfaces of RSU. 2. Insert one end of the SFP cable to a TX/RX interface of RSU. 38 Confidential and Proprietary Information of ZTE CORPORATION Chapter 5 Hardware Installation 3. Route the SFP cable along the routing trough and cabinet sides to the FS module of BBU. The SFP cables connecting to the RSUs in slots 1 to 3 on the RF cabinet go through the left routing apertures and those SFP cables go through the right apertures if connecting to slots 4 to 6 on the RF cabinet, as shown in Figure 17 and Figure 18. FIGURE 17 LAYOUT OF THE SFP CABLES IN THE RF CABINET FIGURE 18 SFP CABLE LAYOUT Confidential and Proprietary Information of ZTE CORPORATION 39 ZXSDR RSUC User Manual 4. Insert SFP cables into the interfaces TX0RX0 to TX5RX5 of the BBU FS board according to the markings 0-5, as shown in Figure 19. FIGURE 19 FS BOARD CONNECTING TO THE BBU 5. Bundle SFP cables. 6. Remove temporary labels and affix engineering labels. END OF STEPS Installing the RF Jumper Prerequisites The ZXSDR RSUC RF cabinet and other modules have already been installed. Context The RF jumpers for the three ZXSDR RSUC go through the waterproof module on the right. Remove the front baffle of the base before installing the RF jumpers and reseat the front baffle after all jumpers are completely installed. Steps 1. Connect the RF jumpers to ANT1 and ANT2 interfaces of RSU from left to right. 2. Wear the waterproof rubber plug after every two RF jumpers are installed. 3. Insert the horizontal and longitudinal slide blocks and use the hexagon ring wrench to fasten them. Caution: Clamp the waterproof rubber plug tightly and make sure that the unused cabling aperture wears the plug. 4. Repeat the preceding steps to install other RSU-related jumpers. END OF STEPS Result 40 Figure 20 shows the completion of installing the RF jumpers. Confidential and Proprietary Information of ZTE CORPORATION Chapter 5 Hardware Installation FIGURE 20 ANTENNA FEEDER JUMPER INSTALLED COMPLETELY The RF jumpers go out from the base, as shown in Figure 21. The cables between cabinets must be protected with protective tubes, without any exposed part of the cables and the openings at two ends of these cables must be sealed, as shown in Figure 22. FIGURE 21 LEAD-OUT OF THE ANTENNA FEEDER JUMPER Confidential and Proprietary Information of ZTE CORPORATION 41 ZXSDR RSUC User Manual FIGURE 22 CABLES 42 IN TUBES Confidential and Proprietary Information of ZTE CORPORATION Figures Figure 1 ZXSDR RSUC Position in a Network..........................10 Figure 2 Outer View of ZXSDR RSUC ....................................11 Figure 3 Schematic Diagram of the ZXSDR RSUC ...................13 Figure 4 ZXSDR RSUC Panel................................................24 Figure 5 ZXSDR RSUC Panel................................................28 Figure 6 Step 1 .................................................................29 Figure 7 Step 2 .................................................................30 Figure 8 Step 3 .................................................................31 Figure 9 Step 4 .................................................................32 Figure 10 Step 5 ...............................................................33 Figure 11 RSU Module Installed Completely...........................34 Figure 12 Power Cable Connecting the RSU ...........................34 Figure 13 RSU Monitoring Cable ..........................................35 Figure 14 Installing the RSU Monitoring Cable .......................36 Figure 15 Waterproof Module through Which Optical Fibers Pass.................................................................37 Figure 16 High-Speed Cable................................................38 Figure 17 Layout of the SFP Cables in the RF Cabinet .............39 Figure 18 SFP Cable Layout.................................................39 Figure 19 FS Board Connecting to the BBU............................40 Figure 20 Antenna Feeder Jumper Installed Completely ..........41 Figure 21 Lead-Out of the Antenna Feeder Jumper .................41 Figure 22 Cables in Tubes ...................................................42 Confidential and Proprietary Information of ZTE CORPORATION 43 ZXSDR RSUC User Manual This page is intentionally blank. 44 Confidential and Proprietary Information of ZTE CORPORATION Tables Table 1 Safety Symbols Description...................................... 2 Table 2 The Primary Functions of ZXSDR RSUC ......................12 Table 3 The functions of subsystem......................................14 Table 4 ZXSDR RSUC Capacity Indices..................................15 Table 5 800 MHz Transmitter Indices ....................................16 Table 6 1.9 GHz Transmitter Indices .....................................17 Table 7 800 MHz Receiver Indices ........................................19 Table 8 1.9 GHz Receiver Indices .........................................20 Table 9 Description of ZXSDR RSUC’s interfaces.....................21 Table 10 ZXSDR RSUC Panel Button Description.....................25 Table 11 ZXSDR RSUC Panel Indicator Description .................25 Table 12 Interfaces on the Front Panel of the ZXSDR RSUC .....26 Confidential and Proprietary Information of ZTE CORPORATION 45 ZXSDR RSUC User Manual This page is intentionally blank. 46 Confidential and Proprietary Information of ZTE CORPORATION Glossary BBU - BaseBand Unit BS - Base Station BSC - Base Station Controller BTS - Base Transceiver Station CDMA - Code Division Multiple Access CPRI - Common Public Radio Interface MS - Mobile Station RF - Radio Frequency RSSI - Received Signal Strength Indicator RSU - RF System Unit SDR - Software Defined Radio Confidential and Proprietary Information of ZTE CORPORATION 47
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