ZTE R8863 Product Description [PDF]

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ZXSDR R8863 Product Description GUL Multi-Mode



ZXSDR R8863 Product Description



ZXSDR R8863 Product Description Version V1.00



Date



Author



2015-02-12



Yang Lisha



Reviewer



Notes



Chen Yong, Yang



First release, including information of GSM,



Xu, Zhao Gang



UMTS and LTE Multi-Mode



© 2015 ZTE Corporation. All rights reserved. ZTE CONFIDENTIAL: This document contains proprietary information of ZTE and is not to be disclosed or used without the prior written permission of ZTE. Due to update and improvement of ZTE products and technologies, information in this document is subjected to change without notice.



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1



ZXSDR R8863 Product Description



TABLE OF CONTENTS



2



1 1.1 1.2 1.3



Overview ............................................................................................................ 4 Introduction .......................................................................................................... 4 Benefits................................................................................................................ 4 Application Scenarios .......................................................................................... 5



2 2.1 2.2 2.2.1 2.2.2 2.2.3 2.2.4 2.2.5 2.3 2.4 2.5



Product Architecture ......................................................................................... 5 Physical Structure ................................................................................................ 5 Hardware Structure .............................................................................................. 5 TRX ..................................................................................................................... 6 PA&LNA .............................................................................................................. 9 DFL ...................................................................................................................... 9 PWR .................................................................................................................... 9 PIB ....................................................................................................................... 9 External Interfaces ............................................................................................. 10 Software Architecture ......................................................................................... 11 Functionality....................................................................................................... 13



3 3.1 3.2 3.2.1 3.2.2 3.2.3 3.2.4 3.3 3.3.1 3.3.2 3.4 3.5 3.6 3.7



Technical Specifications ................................................................................. 14 Physical Indices ................................................................................................. 14 Performance Indices .......................................................................................... 14 Operation Frequency Band ................................................................................ 14 Capacity............................................................................................................. 14 Receiver Sensitivity............................................................................................ 15 TOC Output Power ............................................................................................ 15 Power Indices .................................................................................................... 16 Power Supply..................................................................................................... 16 Power Consumption........................................................................................... 16 Transmission ..................................................................................................... 17 Working Environment ......................................................................................... 17 Electromagnetic Compatibility ............................................................................ 18 Reliability ........................................................................................................... 18



4



Installation ....................................................................................................... 18



5



Configurations ................................................................................................. 19



6



Abbreviation .................................................................................................... 20



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ZXSDR R8863 Product Description



FIGURES Figure 2-1



R8863 Physical Structure ...................................................................................5



Figure 2-2



R8863 System Structure .....................................................................................6



Figure 2-3



R8863 External Interfaces ................................................................................10



Figure 2-4



R8863 Software Structure .................................................................................12



TABLES Table 2-1 R8863 Modules ....................................................................................................6 Table 2-2 R8863 External Interfaces Description ...............................................................10 Table 3-1 R8863 Physical Indices ......................................................................................14 Table 3-2 R8863 Operation Frequency Band .....................................................................14 Table 3-3 R8863 Capacity .................................................................................................14 Table 3-4 R8863 Receiver Sensitivity ................................................................................15 Table 3-5 R8863 TOC Output Power .................................................................................15 Table 3-6 R8863 Power Supply .........................................................................................16 Table 3-7 R8863 UMTS Single-mode Power Consumption................................................16 Table 3-8 R8863 GSM Single-mode Power Consumption..................................................16 Table 3-9 R8863 LTE Single-mode Power Consumption ...................................................16 Table 3-10



R8863 GU Dual-Mode Power Consumption .....................................................16



Table 3-11



R8863 GL Dual-Mode Power Consumption (Two R8863s) ..............................17



Table 3-12



R8863 CPRI Interfaces ....................................................................................17



Table 3-13



R8863 Environment Condition Compatibility ....................................................17



Table 3-14



R8863 Reliability Characteristics ......................................................................18



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ZXSDR R8863 Product Description



1



Overview



1.1



Introduction ZXSDR R8863 (hereinafter R8863) is the distributed Remote Radio Unit (RRU) used in ZTE Uni-RAN total solution, It is designed with 3 transmitters. Based on the common ZTE new generation RRU platform, R8863 can work in GSM, UMTS or LTE single mode or Multi-Mode in the same frequency band. The document is designed to give an overview of the characteristics of R8863, its key benefits, the architecture, functionality and services, as well as the system capabilities.



1.2



Benefits R8863 provides the following benefits to operators. 



The compact RRU design enables operators to uses only one R8863 module instead of three RRUs for one three-cell site. Higher integration brings fewer modules, less space, lower load-bearing requirements and faster installation procedure.







ZXSDR R8863’s PA adopts advanced efficiency enhancement technologies to achieve high power efficiency, including Doherty PA, DPD linear technology and MCPA technology. With these features, RRU power consumption gets a remarkable decrease.







It flexibly supports GSM, UMTS and LTE systems by software configuration. Instead of running hardware on independent platforms for each technology, operators can implement various wireless technologies in software on the same hardware platform. With two R8863, it supports LTE system.







4



Passive thermal dissipation design also contributes to power saving and less noisy.



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ZXSDR R8863 Product Description







The operation and maintenance of one single wireless network with fewer modules is much simpler than multiple system networks. Fewer engineers are required and less implementation to be taken for system interworking or upgrade.



1.3



Application Scenarios R8863 and one Base Band Unit (BBU) form a complete BTS/NodeB, implementing radio transmission in the covered area, controlling radio channels and realizing the communication with the Base Station Controller (BSC/RNC) or EPC. It supports indoor and outdoor applications.



2



Product Architecture



2.1



Physical Structure Figure 2-1 R8863 Physical Structure



2.2



Hardware Structure R8863 consists of transceiver (TRX), power amplifier (PA), duplexer (DFL), power (PWR) and lightning protection module (PIB), as shown in Figure 2-2.



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ZXSDR R8863 Product Description



Figure 2-2 R8863 System Structure



AISG/MON



PIB



RTR



3 * PA



OPT1 OPT2



PWR



R8863



DFL GND



DC in



ANT1 ANT2 ANT3 ANT4 ANT5 ANT6



R8863 module functions are introduced in Table 2-1.



Table 2-1 R8863 Modules Module TRX



Function Receives and transmits the signals of panel interfaces, digital intermediate frequency and RF, and provides controls clock, power and power amplification.



PA



There are three PAs in R8863. PA amplifies downlink RF signals and outputs them



to the duplexer.



Low-noise



amplifier



subsystems are included in this module. DFL



Consists of a duplexer and it can receive diversities.



PWR



Provides EMC protection for the power interface, monitoring interface, and the AISG interface.



PIB



Provides lightning protection for the AISG, RS485 and dry contacts



2.2.1



TRX 



6



Optical interface processing function 



Supports RRU cascading







Exchanges IQ data with the baseband resource pool



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ZXSDR R8863 Product Description







Implements message interaction such as management, maintenance and signaling







Clock processing function 



Recovers clock for data on the optical interface to generate reference clock source







Generates work clock based on the local reference clock of high-stability clock phase locked











Downlink processing function 



Format conversion for downlink output IQ data







Downlink power calibration







Downlink peak clipping







Pre-distortion processing for downlink digits







Downlink single transfer channel







TCPW detection



Uplink processing function 



Format conversion for uplink output IQ data







Uplink power calibration







RCPW detection function







RF hopping function







Rate adaptation modulation function







Monitoring function



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ZXSDR R8863 Product Description







PA Forward power detection — when the forward power exceeds the power alarm threshold, the TRM reports an alarm and controls PA output by the signal of enabling PA output shutoff.







PA reverse power (SWR) detection — when the reverse power exceeds the SWR alarm threshold, the TRM reports an alarm and controls PA output by the signal of enabling PA output shutoff.







PA temperature detection



—



when the temperature exceeds the



over-temperature alarm threshold, the TRM reports an alarm and controls PA output by the signal of enabling PA output shutoff. 



8



Transmit output power detection function 



Power input under-voltage alarm detection and report







Power output under-voltage alarm detection and report







System environment supervision function







TCPW message report function







RCPW message report function







PLL unlocked alarm function







CPRI self-detection alarm function







Hardware configuration information for all RRU modules







Indicator function







Interfaces connecting with external equipment 



Two CPRIs







Two input dry contacts







One RS485 serial port, communicating with external monitoring equipment







One LMT port for local debugging



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ZXSDR R8863 Product Description



2.2.2



2.2.3



2.2.4







One AISG electrically–tuned antenna interface







One power supply connector



PA&LNA 



Amplifies downlink RF signals and outputs them to the duplexer







Provides a pre-distortion feedback and SWR detection interface for the RTR







Provides a read-write interface for module asset management







Provides individual switch-off control







Detects the module internal temperature



DFL 



Lightning protection







Receives diversities







Expands ports for frequency points







Provides feedback signal to TRX through PA



PWR DC power supply:



2.2.5







Converts voltage for the system power supply







Provides the lightning protection for -48 V power supply







Provides -48 V power filter



PIB 



Provides lightning protection function for the AISG, RS485 and dry contacts



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ZXSDR R8863 Product Description



2.3



External Interfaces R8863 external interfaces are located at the bottom and side, as shown in the following figure.



Figure 2-3 R8863 External Interfaces



The interfaces are described in the following table.



Table 2-2 R8863 External Interfaces Description S.N.



Label



Interface BBU and RRU



1



OPT1



Interfaces / RRU cascading interface



10



2



OPT2



3



PWR



Interface Type/Connector LC-mode optical interface (IEC 874)



RRU cascading



LC-mode optical interface (IEC



interface



874)



Power input interface



DC: 2-pin round connector (pin)



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ZXSDR R8863 Product Description



4



GND



Protection



16 mm2 yellow/green round



ground interface



terminal



AISG equipment interface; 5



AISG/MON



External monitoring interface; &



DB15 connector



LMT O&M Ethernet interface TX/RX 6



ANT1 (TX/RX)



antenna



50Ω DIN-mode connector



feeder interface 7



ANT2 (RX)



Receive antenna feeder interface



50Ω DIN-mode connector



TX/RX 8



ANT3 (TX/RX)



antenna



50Ω DIN-mode connector



feeder interface 9



ANT4 (RX)



Receive antenna feeder interface



50Ω DIN-mode connector



TX/RX 10



ANT5 (TX/RX)



antenna



50Ω DIN-mode connector



feeder interface 11



2.4



ANT6 (RX)



Receive antenna feeder interface



50Ω DIN-mode connector



Software Architecture The software system of R8863 can be divided into operating support layer and application layer.



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ZXSDR R8863 Product Description



Figure 2-4 R8863 Software Structure



GSM/UMTS Functions



LMT NOP



SCS



DBS



OAM



BRS



BRACS



OSS



OMC-B



Linux Hardware (BSP)



The operating support layer provides the functions of OSS, while OAM, DBS, BRS, BRACS and SCS serve different BTS modes. 



Operating and Maintenance (OAM) provides the configuration, alarm and performance measurement function.







Database Sub-system (DBS) is the database system.







Bearer Sub-system (BRS) processes the protocol stack.







Bearer Access Control Sub-system (BRACS) controls the access to bear layer.







System Control Sub-system (SCS) controls the power supplying and active/standby switching.



Operation Support Sub-system (OSS) is the support layer in this entire framework, which is a hardware platform for running software and provides basic functions like scheduling, timer, memory management, communication, sequencing control, monitoring, alarming and logging. Board Support Package (BSP) is the software closely connected with the board hardware and supports Real Time Operation Support Sub-system (RT OSS) to work on the board.



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ZXSDR R8863 Product Description



2.5



Functionality R8863 supports functionalities as follows. 



Supports multi-band of 900M/1800M/2100MHz.







Supports three sectors with one way transmitting and two-way receiving for each sector.







Supports the configuration of 5MHz/4.8MHz/4.6MHz/4.4MHz/4.2MHz channel interval for UMTS carrier.







Support the configuration of 1.4MHz/3MHz/5MHz/10MHz/15MHz/20MHz scalable bandwidth for LTE carrier.







Supports GSM only, UMTS only, LTE only or GU/GL Dual-Mode.







Supports 2T2R for one cell by combination of two R8863s which can optimize LTE spectrum efficiency greatly and improve network uplink performance.







Supports 64QAM modulation in both LTE downlink and uplink.







Supports RTWP report interval at 100ms and 2ms.







Supports transmit power reporting function for every carrier.







Supports over loading protection function for power amplifier.







Supports measurement, compensation and adjustment function for channel delay.







Supports dynamic PA voltage adjustment to achieve the best efficiency in different system loads.







Supports transmitting channel switching on/off function.







Supports built-in lightning protection function for DC power supply.



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ZXSDR R8863 Product Description



3



Technical Specifications



3.1



Physical Indices ZXSDR R8863 employs the compact design, whose physical indices are listed below.



Table 3-1 R8863 Physical Indices Item



Index



Dimension (H*W*D)



440 mm * 360 mm * 133 mm (21L)



Weight



25 Kg



Color



Silver gray



3.2



Performance Indices



3.2.1



Operation Frequency Band Table 3-2 R8863 Operation Frequency Band System



RRU Frequency Spectrum(MHz)



GSM single mode



900/1800



UMTS single mode



900/2100



LTE single mode



900/1800



GU Dual-Mode



900



GL Dual-Mode



900/1800



Note: The actual working bandwidth and IBW are subject to the products configured.



3.2.2



Capacity Table 3-3 R8863 Capacity System



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RRU Capacity



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ZXSDR R8863 Product Description



GSM single mode



3*6 TRXs



UMTS single mode



3*4 Carriers



LTE single mode



1.4M, 3M, 5M, 10M, 15M, 20MHz 3*(4 GSM TRXs + 1 UMTS carrier)



GU Dual-Mode



3.2.3



3*(2 GSM TRXs + 2 UMTS carriers)



GL Dual-Mode 900MHz



3*(6 GSM TRXs + LTE10MHz) (2 R8863s)



GL Dual-Mode 1800MHz



3*(6 GSM TRXs + LTE 20MHz) (2 R8863s)



Receiver Sensitivity R8863 receiver sensitivity is shown as following table:



Table 3-4 R8863 Receiver Sensitivity Mode



GSM



Frequency



Single Antenna



Dual Antennas



Four Antennas



Spectrum(MHz)



(dBm)



(dBm)



(dBm)



900/1800



-113.5



-115.5



N/A



2100



-126.5



-129.2



N/A



900



-126.4



-129.1



N/A



900



-106.6



-109.4



-112.2



1800/2100



-106.4



-109.2



-112



UMTS



LTE



3.2.4



TOC Output Power Table 3-5 R8863 TOC Output Power Mode



TOC Output Power



GSM single mode (900M/1800MHz)



3*80W



UMTS single mode (2100MHz)



3*80W



GL Dual-Mode (900M/1800MHz)



3*60W



Note: When “ZGO-04-01-011 Power Boost for 8PSK” is applied in GSM mode, the TOC output power achieves the same in 8PSK modulation as in GMSK.



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ZXSDR R8863 Product Description



3.3



Power Indices



3.3.1



Power Supply Table 3-6 R8863 Power Supply Item power supply



3.3.2



Indices DC: -48 V (-37 V – -60 V DC)



Power Consumption Table 3-7 R8863 UMTS Single-mode Power Consumption Power Consumption (W) Configuration Average



Peak



S2/2/2, 20W/carrier (900MHz)



280



440



S2/2/2, 20W/carrier (2100MHz)



330



460



Table 3-8 R8863 GSM Single-mode Power Consumption Power Consumption (W) Configuration Average



Peak



S4/4/4, 20W/TRX (900MHz)



440



760



S4/4/4, 20W/TRX (1800MHz)



525



805



Table 3-9 R8863 LTE Single-mode Power Consumption Power Consumption (W) Configuration Average



Peak



S1/1/1, 40W/LTE carrier (900MHz)



360



510



S1/1/1, 40W/LTE carrier (1800MHz)



410



575



Table 3-10 R8863 GU Dual-Mode Power Consumption Configuration



16



Power Consumption (W)



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ZXSDR R8863 Product Description



Average G:S4/4/4+U:S1/1/1, GSM 15W/TRX+UMTS 20W/carrier



Peak



455



760



Table 3-11 R8863 GL Dual-Mode Power Consumption (Two R8863s) Power Consumption (W) Configuration Average



Peak



G:S2/2/2+L:S1/1/1, GSM 20W/TRX+LTE 40W/Carrier



900



1280



990



1400



(900MHz) G:S2/2/2+L:S1/1/1, GSM 20W/TRX+LTE 40W/Carrier (1800MHz)



3.4



Transmission ZXSDR R8863 is connected to BBU through CPRI interfaces.



Table 3-12 R8863 CPRI Interfaces Item



Value



Interface



Speed



Kind



Standard



1.2288Gbps CPRI interface



2



SFP (LC)



2.4576Gbps 3.072Gbps



CPRI V4.2



6.144Gbps



3.5



Working Environment Table 3-13 R8863 Environment Condition Compatibility Item



Index



Temperature



-40 – +55 °C



Relative humidity



5% – 95%



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ZXSDR R8863 Product Description



Waterproof/dustproof



IP65 ≤5 Ω; earth resistance can be less than 10 Ω in thunder-less area where there less than 20



Ground



thunderstorm days per year. Indoor pack deposited Storage



Temperature: -40 °C to 70 °C Relative Humidity: 5% to 100%



3.6



Electromagnetic Compatibility YD/T 1595.2-2007 ETSI EN 301 489-01, ETSI EN 301 489-23 ETSI EN 300 386–V1.3.2 (CISPR22) Class B Directive 1999/5/EC (R&TTE)



3.7



Reliability Table 3-14 R8863 Reliability Characteristics Item



4



Index



MTBF



≥360,000 hours



MTTR



1 hour



Availability index



≥99.999722%



Down duration



≤1.460 min/year



Installation R8863 is easy to be deployed.



18



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ZXSDR R8863 Product Description







It is portable to transport and flexible to install on the pole, tower and against wall.







Only fibers, power cables, RF cable antennas and AISG cables need to be connected;







Suitable for any weather condition with water resistance and dust proof case, which reaches IP65.



5



Configurations R8863 can be configured as GSM, UMTS, LTE single mode or Multi-Mode by software.



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ZXSDR R8863 Product Description



6



Abbreviation Abbreviation



20



Full Characters



AISG



Antenna Interface Standard Group



BBU



Base Band processing Unit



BSP



Board Support Package



CAPEX



Capital Expenditure



CPRI



Common Public Radio Interface



DFL



Duplex Filters LNA



GSM



Global System for Mobile communications



LMT



Local Maintenance Terminal



LTE



Long Term Evolution



MIMO



Multi Input Multi Output



MTBF



Mean Time Between Failures



MTTR



Mean Time To Recovery



OAM



Operating And Maintenance



OPEX



Operation Expenditure



OSS



Operation Support Sub-system



RF



Radio Frequency



RRU



Remote Radio Unit



RTWP



Received Total Wideband Power



SDR



Software Defined Radio



UMTS



Universal Mobile Telecommunications System



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