ZTE RSUC1930 CDMA Remote Radio Unit User Manual

ZTE Corporation CDMA Remote Radio Unit Users Manual

Users Manual

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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.
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ZXSDR RSUC User Manual
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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
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II
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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.
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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.
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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
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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.
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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.
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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.
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Chapter 1 Safety Description
�
Contact ZTE office if you have any question, to ensure your
safety.
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ZXSDR RSUC User Manual
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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.
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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
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Chapter 2 Product Descripition
FIGURE 2 OUTER VIEW
OF
ZXSDR RSUC
Production Functions
ZXSDR RSUC provides primary functions is shown as Table 2.
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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
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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.
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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
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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
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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 <
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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
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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.
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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
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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
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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
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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.
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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
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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.
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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
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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.
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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.
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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.
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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
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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.
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ZXSDR RSUC User Manual
FIGURE 9 STEP 4
5. Secure the module using five M5 x 20 screws, as shown in
Figure 10.
32
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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.
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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
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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.
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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.
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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.
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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.
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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
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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.
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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
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ZXSDR RSUC User Manual
FIGURE 22 CABLES
42
IN
TUBES
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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
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ZXSDR RSUC User Manual
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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
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ZXSDR RSUC User Manual
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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
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