Zte R8978 User Manual

ZXSDR R8978

TDD 8 Path Remote Radio Unit

User Manual

Version: V5.10

ZTE CORPORATION

No. 55, Hi-tech Road South, ShenZhen, P.R.China Postcode: 518057

Tel: [phone]

Fax: [phone] URL: http://support.zte.com.cn E-mail: [e-mail]

LEGAL INFORMATION

Copyright © 2017 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 the ZTE technical support website http://support.zte.com.cn to inquire for related information.

The ultimate right to interpret this product resides in ZTE CORPORATION.

Revision History

Revision Version	Revision Date	Revision Reason
R1.2	2016–08–17	Added S2600L
R1.1	2014-10-30	Added S2600M
R1.0	2014-08-06	First edition

Serial Number: SJ-20141113151137-001

Publishing Date: 2016-08-17 (R1.2)

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Contents

About This Manual .........................................................................................				I
Chapter 1 FCC Related Statements ..........................................................				1-1
Chapter 2 Product Overview .....................................................................				2-1
2.1	Product Positioning ............................................................................................			2-1
2.2	Product Features................................................................................................			2-2
2.3	External View.....................................................................................................			2-2
2.4	Product Specifications ........................................................................................			2-3
	2.4.1 ZXSDR R8978 S2300...............................................................................			2-3
	2.4.2 ZXSDR R8978 S2600M............................................................................			2-4
	2.4.3 ZXSDR R8978 S2600L.............................................................................			2-4
2.5	External Interfaces .............................................................................................			2-5
2.6	Installation Modes ..............................................................................................			2-6
2.7	Typical Networking Applications ..........................................................................			2-6
Chapter 3 Product Composition ...............................................................				3-1
3.1	System Structure................................................................................................			3-1
3.2	Composition.......................................................................................................			3-2
3.3	LED Indicators ...................................................................................................			3-3
3.4	Physical Interfaces and Cables ...........................................................................			3-5
	3.4.1 Protective Grounding Cable ......................................................................			3-5
	3.4.2 DC Power Input Cable..............................................................................			3-6
	3.4.3 LMT/TST Interface Cable..........................................................................			3-9
	3.4.4 Optical Fiber ..........................................................................................			3-10
	3.4.5 Antenna Feeder Interface Cable...............................................................			3-11
	3.4.6 CAL/AISG Interface Cable ......................................................................			3-13
	3.4.7 EAM/RGPS Interface Cable....................................................................			3-14
3.5	External Cable Connection ...............................................................................			3-14
3.6	Software Composition.......................................................................................			3-15
Chapter 4 Operation and Maintenance.....................................................				4-1
4.1	Technical Support...............................................................................................			4-1
4.2	Fault Location ....................................................................................................			4-2
4.3	Equipment Maintenance .....................................................................................			4-3
4.4	Power On ..........................................................................................................			4-4
4.5	Power Off ..........................................................................................................			4-5
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4.6 Parts Replacement.............................................................................................	4-6
4.6.1 Replacing the ZXSDR R8978....................................................................	4-6
4.6.2 Replacing the Optical Module....................................................................	4-7
4.6.3 Replacing the RF Cable............................................................................	4-8

Chapter 5 Accessory Devices ...................................................................		5-1
5.1	Junction Box ......................................................................................................	5-1
5.2	AC Power Lightening Protection Box ...................................................................	5-3
5.3	Replacing the AC Power Lighting Protection Box..................................................	5-6

Chapter 6 Technical Specifications ..........................................................		6-1
6.1	Physical Specifications .......................................................................................	6-1
6.2	Performance Indexes .........................................................................................	6-1
6.3	Power Consumption ...........................................................................................	6-2
6.4	Reliability Indexes ..............................................................................................	6-2
6.5	Grounding Requirement......................................................................................	6-3
6.6	Lightening and Surge Protection .........................................................................	6-3

Chapter 7 Environment Requirements.....................................................		7-1
7.1	Power Supply Requirements...............................................................................	7-1
7.2	Operating Environment.......................................................................................	7-1
7.3	Storage Environment..........................................................................................	7-2
Figures.............................................................................................................		I
Tables ............................................................................................................		III
Glossary .........................................................................................................		V

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About This Manual

Purpose

This manual describes the software and hardware structures, interfaces and cables, functions, features, technical specifications, installation modes, networking, and maintenance methods of the ZXSDR R8978.

Intended Audience

This manual is intended for:

•Base station installation engineers

•Base station commissioning engineers

•Base station maintenance engineers

What Is in This Manual

This manual contains the following chapters.

Chapter 1, FCC Related	Describes the statements related to FCC rule.
Statements
Chapter 2, Product Overview	Describes the external view, interfaces, functions, features, and
	typical network applications of the ZXSDR R8978.
Chapter 3, Product Composition	Describes the system structure, hardware composition, and
	software composition of the ZXSDR R8978.
Chapter 4, Operation and	Provides the technical support contact information, power-on and
Maintenance	power-off flow, and component replacement methods.
Chapter 5, Accessory Devices	Describes the accessory devices, including junction box, and AC
	power lightening protection box, and the replacement methods.
Chapter 6, Technical	Provides the technical specifications of the ZXSDR R8978.
Specifications
Chapter 7, Environment	Describes the environment requirements of the ZXSDR R8978.
Requirements

Conventions

This manual uses the following conventions.

Danger: indicates an imminently hazardous situation. Failure to comply can result in death or serious injury, equipment damage, or site breakdown.

Warning: indicates a potentially hazardous situation. Failure to comply can result in serious injury, equipment damage, or interruption of major services.

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Caution: indicates a potentially hazardous situation. Failure to comply can result in moderate injury, equipment damage, or interruption of minor services.

Note: provides additional information about a topic.

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Chapter 1

FCC Related Statements

Warning!

Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

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.

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.

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 10.2 m between the radiator & your body.

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Chapter 2

Product Overview

Table of Contents

Product Positioning ....................................................................................................	2-1
Product Features........................................................................................................	2-2
External View .............................................................................................................	2-2
Product Specifications................................................................................................	2-3
External Interfaces .....................................................................................................	2-5
Installation Modes ......................................................................................................	2-6
Typical Networking Applications .................................................................................	2-6

2.1 Product Positioning

The ZXSDR R8978 is an eight-path TD-LTERRU with high power. It operates with a BBU to cover new outdoor sites.

The ZXSDR R8978 works with a BBU to compose a complete eNodeB and implement the functions such as radio transmission in the coverage area and radio channel control.

Figure 2-1 illustrates the position of the ZXSDR R8978 in a LTE network.

Figure 2-1 Position of the RRU in a Network

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2.2 Product Features

Unified Platform

The ZXSDR R8978 is developed based on the unified SDR platform, which supports smooth evolution to new technologies in the future, and protects the operators' investment in maximum.

Energy conservation and environmental protection

•Designed with high-efficiency power amplifier technologies: Crest Factor Reduction (CFR), Digital Pre-Distortion (DPD) and Doherty to reduce equipment's power consumption.

•Uses passive heat dissipation without electrical noise, which can save 35% power consumption compared with the traditional air conditioner to effectively reduce the operators' power consumption cost.

•Supports the energy-saving technologies such as slot-based power saving and voltage regulation power saving.

Multi-Carrier, MIMO, BF, and High Performance

•Supports multiple frequency bands such as 2.3 GHz/2.6 GHz to satisfy the requirements of various operators.

•Supports flexible configuration of up to TD-LTE 4x20 MHz multi-carriers to fully and flexibly utilize the operators' spectrum.

High Output Power

Up to 160 W (8x20 W) output power is provided to satisfy the power requirements for high capacity and large coverage.

10 Gbps Optical Interface

Two 10 Gbps CPRI optical interfaces are provided to satisfy the TD-LTE CPRI flow requirement. CPRI optical interface multi-mode transmission is supported (the 6 Gbps optical interface rate is also supported).

2.3 External View

Figure 2-2 shows the external view of the ZXSDR R8978.

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Chapter 2 Product Overview

Figure 2-2 External View

2.4 Product Specifications

The ZXSDR R8978 is an eight-channel RRU that an be used for networking TD-LTE macro cells.

In this manual, all the descriptions for the ZXSDR R8978 are applicable to the following specifications unless specially stated:

•ZXSDR R8978 S2300

•ZXSDR R8978 S2600M

•ZXSDR R8978 S2600L

2.4.1ZXSDR R8978 S2300

For the key features of the ZXSDR R8978 S2300, refer to Table 2-1.

Table 2-1 Key Features of the ZXSDR R8978 S2300

	Item			Description
	Radio access mode			TD-LTE
	Frequency band			2300 MHz~2400 MHz
	Antenna			Supports 4×4 MIMO dual TRX channels.
	Maximum number of carriers			TD-LTE: 4×20 MHz
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Item	Description
Signal bandwidth	80	MHz
Maximum power output in each channel	20	W
Power input	DC: -48 V DC
	AC: 100 V AC/110 V AC/220 V AC

2.4.2 ZXSDR R8978 S2600M

For the key features of the ZXSDR R8978 S2600M, refer to Table 2-2.

Table 2-2 Key Features of the ZXSDR R8978 S2600M

Item	Description
Radio access mode	TD-LTE
Frequency band	2496 MHz~2690 MHz
Antenna	Smart Antenna
	RET
	8–path transceiving channels
Maximum number of carriers	TD-LTE: 4x20 MHz 2x20 MHz
Signal bandwidth	100 MHz
Maximum power output in each channel	20 W
Power input	-48 VDC

2.4.3 ZXSDR R8978 S2600L

For the key features of the ZXSDR R8978 S2600L, refer to Table 2-3.

Table 2-3 Key Features of the ZXSDR R8978 S2600L

	Item			Description
	Radio access mode			TD-LTE
	Frequency band			2575 MHz~2635 MHz
	Antenna			Smart Antenna
				RET
				8–path transceiving channels
	Maximum number of carriers			TD-LTE: 3x20 MHz
	Signal bandwidth			60 MHz
	Maximum power output in each channel			20 W
	Power input			-48 VDC
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Chapter 2 Product Overview

2.5 External Interfaces

Figure 2-3 illustrates the external interfaces of the ZXSDR R8978.

Figure 2-3 External Interfaces

For a description of the external interfaces, refer to Table 2-4.

Table 2-4 External Interface Description

External Device	Description	External Interface
BBU	BBU performs the functions such as GPS	Logical interface: Ir interface
	synchronization, main control, and baseband	Physical interface: optical
	processing.	fiber interface
UE	UE accomplishes the Uu interface functions of	Logical interface: Uu interface
	transmitting voice and data services.	Physical interface: none
User device	External environment monitoring device	Logical interface: not
		standardized
		Physical interface: dry contact

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External Device	Description	External Interface
RRULMT	Operates and maintains the RRU at the local	Logical interface: not
	end	standardized
		Physical interface: Ethernet
		interface
Cascade RRU	Upstream RRU	Logical interface: Ir interface
		Physical interface: optical
		fiber interface

•External interfaces exclude the power and antenna interface of the RRU.

Note:

The LMT at the BBU side can operate and maintain multiple RRUs under the BBU. ZTE NetNumen™ EMS provides unified operation and maintenance on multiple sites.

2.6 Installation Modes

The ZXSDR R8978 supports three installation modes:

•A single RRU mounted on a pole

•Two RRUs mounted on a pole

•Mounted on a wall

•Mounted on slot steel

•Mounted on angle steel

2.7Typical Networking Applications

The ZXSDR R8978 supports the following networking solutions:

•Chain networking

Chain networking applies to strip-shaped areas with sparse population, where optical fibers can be laid conveniently. Figure 2-4 shows a chain networking solution.

Figure 2-4 Chain Networking

•Star networking

In a star networking solution, a BBU is connected to each RRU and the RRU is the terminal equipment. This networking type is simple and easy for maintenance

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Chapter 2 Product Overview

and engineering. Because the signal passes through fewer intermediate links along the transmission path, the link reliability is much higher. Figure 2-5 shows a star networking solution.

Figure 2-5 Star Networking

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Chapter 3

Product Composition

Table of Contents

System Structure........................................................................................................	3-1
Composition...............................................................................................................	3-2
LED Indicators............................................................................................................	3-3
Physical Interfaces and Cables ..................................................................................	3-5
External Cable Connection.......................................................................................	3-14
Software Composition ..............................................................................................	3-15

3.1 System Structure

Figure 3-1 shows the system structure of the ZXSDR R8978.

Figure 3-1 System Structure

Table 3-1 describes the subsystems of the ZXSDR R8978.

Table 3-1 Subsystem Description

	Name	Type		Function
	RRU software	Software		Provides the system operating system and OM functions
	subsystem	subsystem
	Transceiver	Hardware		•	Power interface
		subsystem		•	Optical interface
				•	Control functions
				•	Clock functions
				•	DIF
				•	TRX
	8T8R filter unit	Hardware		Eight-channel filter
		subsystem
	Structure subsystem	Structure		Provides equipment protection, heat dissipation, and
		subsystem		installation, and module structure, heat dissipation, and
				installation.
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3.2 Composition

Figure 3-2 shows the composition of the ZXSDR R8978.

Figure 3-2 Product Composition

1.	Radiating pin	4.	Operation and maintenance	7.	Grounding bolt
2.	Handle		cavity	8.	Breathable valve
3.	LED indicators	5.	Antenna interface	9.	EAM/RGPS interface
		6.	CAL/AISG interface

•The operation and maintenance cavity contains one DC power interface, two optical interfaces (OPT1 and OPT2), one RRU LMT/test interface (LAM/TST).

•The equipment has six LED indicators.

•A handle is installed on the upper shell to facilitate installation and transportation.

•At the bottom of the equipment, there are eight antenna interfaces (ANT1–ANT8), one hermetic seal (breathable valve), one antenna calibration interface (CAL/AISG), and one dry contract user device interface (EAM/RGPS).

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Chapter 3 Product Composition

Note:

The LMT/TST interface is used for ZTE maintenance personnel to perform commissioning and maintenance.

3.3 LED Indicators

An indicator indicates the operating status of a device. Figure 3-3 shows the positions of the indicators.

Figure 3-3 LED Indicators

Table 3-2 describes the LED indicators.

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Table 3-2 Indicator Descriptions

Name	Indication	Color	Description
RUN	Operation	Green	OFF: The system is not powered.
	indicator
			ON: The system is powered. The software system is not
			running.
			Flashing slowly (ON for 1 s and OFF for 1 s): The system is
			powered. The software system is being started.
			Flashing normally (ON for 0.3 s and OFF for 0.3 s): The
			system is powered. The software system has been started.
			The communication between the RRU and BBU is normal.
			Flashing fast (ON for 70 ms and OFF for 70 ms): The system
			is powered. The software system has been started. The link
			between the ZXSDR R8978 and BBU is not established.
ALM	Alarm indicator	Red	OFF: There is no alarm.
			ON: There is an alarm.
OPT1	Indicator of	Green	OFF: The optical interface does not receive optical signals.
	optical interface
			ON: The optical interface has received optical signals and
	1
			the link is not synchronized.
			Flashing (ON for 0.3 s and OFF for 0.3 s): The optical interface
			has received optical signals and the link is synchronized.
OPT2	Indicator of	Green	OFF: The optical interface does not receive optical signals.
	optical interface
			ON: The optical interface has received optical signals and
	2
			the link is not synchronized.
			Flashing (ON for 0.3 s and OFF for 0.3 s): The optical interface
			has received optical signals and the link is synchronized.
VSWR	Indicator of	Red	OFF: VSWRs at all antenna interfaces of the transmitting
	the VSWR at		links are normal.
	the antenna
			ON: There is a VSWR alarm at the antenna interface of the
	interface
			transmitting link.
ACT	Radio link	Green	Solid ON: Indicates that the radio links are successfully
	status indicator		established, and cells are established.
			OFF: Indicates that no radio links are established or
			establishment failed, and no cell exists.

•The ALM indicator does not indicate alarms of the optical interfaces (OPT1 and OPT2) and VSWR alarms at the antenna interfaces.

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