ZXSDR R8872A Macro Remote Radio Unit Product Description Hardware Version: HV1.0 ZTE CORPORATION No. 55, Hi-tech Road South, ShenZhen, P.R.China Postcode: 518057 Tel: +86-755-26771900 Fax: +86-755-26770801 URL: http://support.zte.com.cn E-mail: 800@zte.com.
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Contents About This Manual ......................................................................................... I Chapter 1 Overview .................................................................................... 1-1 1.1 Functions........................................................................................................... 1-1 1.2 Features ............................................................................................................ 1-2 Chapter 2 System Architecture ...
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About This Manual Purpose This manual provides information about the ZXSDR R8872A, including functions, features, system architecture, operation and maintenance, and technical specifications. Intended Audience This manual is intended for: l l Network planning and optimization engineers Field designing engineers What Is in This Manual This manual contains the following chapters. Chapter 1, Overview Describes the external view, functions, and features of the ZXSDR R8872A.
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Chapter 1 Overview The ZXSDR R8872A is an outdoor RRU. It works with the BBU to form a distributed base station, implementing radio transmission and radio channel control in the coverage areas. Figure 1-1 shows an external view of the ZXSDR R8872A. Figure 1-1 External View Table of Contents Functions ...................................................................................................................1-1 Features.................................................................................
ZXSDR R8872A Product Description l l l l l Uplink/downlink 64QAM modulation Transmission power reporting function for each carrier PA overload protection function Transmission channel switch function Software failure will not affect the running of connected BBU and other cascaded RRUs. Figure 1-2 shows the position of the ZXSDR R8872A in a radio network. Figure 1-2 ZXSDR R8872A Position in a Radio Network 1.
Chapter 2 System Architecture Table of Contents Hardware Architecture................................................................................................2-1 Software Architecture .................................................................................................2-2 2.1 Hardware Architecture The ZXSDR R8872A contains five hardware modules, see Figure 2-1.
ZXSDR R8872A Product Description 2.2 Software Architecture The ZXSDR R8872A software architecture is divided into two layers: SDR unified platform software and application software, see Figure 2-2. Figure 2-2 Software Architecture l l SDR unified platform software à BSP: It provides basic functions including hardware drivers, initialization, alarms, and monitoring. It also provides interfaces for devices to access the Linux operating system. à Linux: It is the operating system platform.
Chapter 3 Networking and Maintenance Table of Contents Baseband-RF Networking ..........................................................................................3-1 Operation and Maintenance .......................................................................................3-2 3.1 Baseband-RF Networking The ZXSDR R8872A supports star and line networks with the BBU. The ZXSDR R8872A and the BBU are connected with optical fibers.
ZXSDR R8872A Product Description 3.2 Operation and Maintenance Remote Maintenance Remote maintenance is implemented through the EMS, which is connected to the BBU through the TCP/IP protocol, and the BBU is connected to the ZXSDR R8872A through the CPRI interface, see Figure 3-3. Multiple base stations can be maintained through one EMS.
Chapter 4 Technical Specifications Table of Contents Physical Specifications ...............................................................................................4-1 Operating Environment...............................................................................................4-1 Power Supply .............................................................................................................4-2 Performance .............................................................................
ZXSDR R8872A Product Description 4.3 Power Supply For the power supply requirements of the ZXSDR R8872A, refer to Table 4-3.
Chapter 4 Technical Specifications Table 4-4 ZXSDR R8872A S8500 Performance Requirements Item Specification Operating 850 MHz frequency l Tx: 869–894 MHz band l Rx: 824–849 MHz TOC output 2 x 80 W power Bandwidth LTE: 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, and 20 MHz Receiver GSM Sensitivity Single antenna: –113.5 dBm Dual antennas: –115.5 dBm Four antennas: N/A UMTS Single antenna: –125.8 dBm Dual antennas: –128.5 dBm Four antennas: N/A LTE Single antenna: –106.4 dBm Dual antennas: –109.
ZXSDR R8872A Product Description Item Specification Receiving GSM sensitivity Single antenna: –113.5 dBm Dual antennas: –115.5 dBm Four antennas: N/A LTE Single antenna: –106.4 dBm Dual antennas: –109.2 dBm Four antennas: –112 dBm Capacity Transmis- GSM single-mode 2 x 6 TRXs LTE single-mode 2 x 10 MHz 2T2R/2T4R Cells GSM/LTE multi-mode l GSM 2 x 4TRXs+LTE 1 x 10 MHz 2T2R/2T4R Cell l GSM 2 x 2TRXs+LTE 2 x 10 MHz 2T2R/2T4R Cells CPRI interface, 2 x 6.
Chapter 4 Technical Specifications Table 4-7 ZXSDR R8872A S1900 Performance Requirements Item Specification Operating 1900 MHz frequency l Tx: 1930–-1990 MHz band l Rx: 1850–1910 MHz TOC output 2 x 80 W power Bandwidth LTE: 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, and 20 MHz Receiving GSM Single antenna: –113.5 dBm sensitivity Dual antennas: –115.5 dBm Four antennas: N/A UMTS Single antenna: –125.8 dBm Dual antennas: –128.5 dBm Four antennas: N/A LTE Single antenna: –106.
ZXSDR R8872A Product Description 4.6 Electromagnetic Compatibility For the electromagnetic compatibility requirements of the ZXSDR R8872A, refer to Table 4-9. Table 4-9 Electromagnetic Compatibility Requirements Item Specification ESD immunity Contact discharge: ±6000 V Air discharge: ±8000 V Surge immunity DC power interface cable (grounding): ±2000 V 4-6 SJ-20141127113509-001|2016-12-05 (R1.
Glossary 64QAM - 64 Quadrature Amplitude Modulation BBU - Base Band Unit BSP - Board Support Package CDMA - Code Division Multiple Access CPRI - Common Public Radio Interface DPD - Digital Pre-Distortion EMS - Element Management System GSM - Global System for Mobile Communications IP - Internet Protocol LMT - Local Maintenance Terminal LTE - Long Term Evolution MCPA - Multi-Carrier Power Amplifier MTBF - Mean Time Between Failures MTTR - Mean Time To Recovery OAM - Operating and Maintenance OSS - Operation
ZXSDR R8872A Product Description PC - Personal Computer RRU - Remote Radio Unit TCO - Total Cost of Ownership TCP - Transmission Control Protocol II SJ-20141127113509-001|2016-12-05 (R1.
