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AISU

User Manual

Issue 02

Date 2017-06-12

Huawei Technologies Co., Ltd.

Issue 02 (2017-06-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

i

Copyright © Huawei Technologies Co., Ltd. 2017. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.

Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

http://www.huawei.com/�

mailto:[email protected]�

AISU User Manual About This Document


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About This Document

Overview This document describes the antenna information sensor unit (AISU) in terms of the application scenarios and installation, configuration, and maintenance methods, providing guidance for users to operate and maintain the AISU.

Intended Audience This guide is intended for:

Field engineers Maintenance engineers Network planners

Changes History 02 (2017-06-12)

This is the second release.

01 (2016-02-19)

This is the first release.

Draft A (2015-09-14)

This is Draft B.

Draft A (2015-03-24)

This is Draft A.

AISU User Manual Contents


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Contents

About This Document .................................................................................................................... ii

1 Device Description ....................................................................................................................... 1

1.1 AISU Introduction ......................................................................................................................................... 1

1.2 Specifications ................................................................................................................................................. 1

1.3 Appearance Description ............................................................................................................................... 2

1.4 Description of AISU SNs .............................................................................................................................. 3

1.5 AISU Software Version ................................................................................................................................. 3

2 Application Scenarios .................................................................................................................. 5

2.1 Typical Application Scenarios ..................................................................................................................... 5

2.1.1 Ideal Scenario ........................................................................................................................................ 5

2.1.2 Recommended Scenario ...................................................................................................................... 6

2.2 Complex Application Scenarios .................................................................................................................. 6

2.2.1 Installation with Electromagnetic Radiation .................................................................................... 6

2.2.2 Installation with the Multipath Effect Caused by Reflection ......................................................... 7

2.2.3 Scenarios to Be Avoided ...................................................................................................................... 7

3 Installation and Replacement ..................................................................................................... 8

3.1 General Safety Precautions .......................................................................................................................... 8

3.2 Operation Precautions .................................................................................................................................. 9

3.3 Installation and Maintenance Tools .......................................................................................................... 10

3.4 Installation Guide ........................................................................................................................................ 10

3.4.1 Bracket Pre-Assembling under the Tower ...................................................................................... 10

3.4.2 Installation on the Tower .................................................................................................................. 12

3.4.3 Fixing the Cables ................................................................................................................................ 14

3.5 AISU Replacement ...................................................................................................................................... 14

4 Networking Modes ..................................................................................................................... 15

4.1 Regular Installation Scenario ..................................................................................................................... 15

4.2 Daisy-Chain Installation Scenario ............................................................................................................. 18

5 Configuration Guide .................................................................................................................. 19

5.1 AISU Used with Huawei Base Stations .................................................................................................... 19

5.1.1 AISU Configurations ......................................................................................................................... 20

AISU User Manual Contents


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5.1.2 AISU Maintenance and Configurations .......................................................................................... 28

5.2 AISU Used with Base Stations of Other Suppliers.................................................................................. 32

6 Maintenance Guide .................................................................................................................... 33

6.1 AISU Used with Huawei Base Stations .................................................................................................... 33

6.1.1 Non-Alarm Maintenance .................................................................................................................. 33

6.1.2 Alarm Maintenance ........................................................................................................................... 36

6.1.3 AISU Replacement ............................................................................................................................. 40

6.2 AISU Used with Base Stations of Other Suppliers.................................................................................. 40

A Appendix ..................................................................................................................................... 41

A.1 Acronyms and Abbreviations ................................................................................................................... 41

A.2 Frequency Bands of the Device Information .......................................................................................... 42

AISU User Manual 1 Device Description


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1 Device Description

1.1 AISU Introduction The AISU measures antenna engineering parameters, including the azimuths, mechanical tilts, longitude, latitude, and altitude. The AISU is installed at the top of an antenna to perform GPS-based direction measurement. The AISU, base station, and network management system (NMS) are used together to implement the Self-Aware Antenna(SAA) solution, in which the antenna engineering parameters can be remotely queried on the NMS in real time.

1.2 Specifications Table 1-1 lists the AISU specifications.



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Table 1-1 AISU specifications

Azimuth Precision (°)* ±2

Mechanical Tilt Precision (°) ±0.5

Horizontal Positioning Precision (m)* < 6

Vertical Positioning Precision (m)* < 3

Protocol Compliance AISG-ES-RAE V2.1.0

Input Voltage Range (V) 10 to 30 (DC)

Power Consumption (W) < 2.5 (@ 12 V)

Connector 8-pin male connectors compliant with the IEC 60130-9 standard

Connector Pin 1 2 3 4 5 6 7 8 DC n/c RS-485B n/c RS-485A DC DC return n/c

Device Weight (kg) 0.85

Packing Weight (kg) 1.9

Operating Temperature (°C) -40 to +65

Surge Protection Specifications (kA) 5 (8/20 μs)

Ingress Protection Rating IP65

Device Dimensions (H x W x D) (mm)

37 x 325 x 129 (including connectors and not including mounting brackets)

Packing Dimensions (H x W x D) (mm) 100 x 470 x 187.5

* indicates that the item is affected by the multipath environment, number of visible satellites, satellite geometric distribution, ionospheric activeness, and SBAS using and observation time.

1.3 Appearance Description

The AISU contains only one AISG male connector.



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Figure 1-1 AISU appearance

Figure 1-2 AISU on the antenna

1.4 Description of AISU SNs The device SN of the AISU consists of 19 characters. In the device SN, the third character Z indicates that the device is an AISU, and the fourth to seventh characters AISU indicates that the device is an AISU.

Example:

HWZAISU069441521123

1.5 AISU Software Version The AISU software version can be obtained at http://support.huawei.com.

Software version of AISU is V100R001.

Table 1-2 describes base station versions supported by the AISU.

http://support.huawei.com/�



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Table 1-2 Base station versions supported by the AISU

RAT Version

SRAN9.0 SRAN10.1 SRAN11.0 and Later

LTE TDD Supported Supported Supported

LTE FDD Supported Supported Supported

GSM Not supported Not supported Supported

UMTS Not supported Not supported Supported

This document describes configuration and maintenance processes for DBS3900 LTE V100R007C00 (eRAN7.0). For co-MPT base stations in SRAN9.0, this document is also applicable to configurations of GSM and UMTS modes because commands for GSM, UMTS, and LTE modes are the same.

AISU User Manual 2 Application Scenarios


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2 Application Scenarios

In the current version, the AISU supports most Huawei antenna models. However, the AISU still does not support certain Huawei antenna models. In later versions, the AISU will be optimized to enhance its compatibility with these antenna models.

For details about the antenna models supported by the AISU, see Antenna List for the AISU.

Whether the AISU is applicable to antennas provided by other suppliers must be determined based on the antenna installation test results.

When installing the AISU in complex antenna application scenarios, comply with the following principles:

If obstructions exist, block the north part of the AISU if it is installed on the northern hemisphere and block the south part of the AISU if it is installed on the southern hemisphere to ensure less impact on the AISU.

Do not install the AISU under a strong electromagnetic radiation source. Do not install the AISU near a metal cabinet, such as an air conditioner cabinet. The AISU cannot be used when multiple antennas are deployed above the AISU on the

same pole.

The following sections describe the AISU installed in different scenarios.

2.1 Typical Application Scenarios 2.1.1 Ideal Scenario

In the ideal scenario, there is no obstruction within the range when the antenna horizontal elevation angle is 10°, as shown in Figure 2-1.

In this scenario, the antenna is installed on a pole. During the test, the optimal measurement result can be obtained after 2 hours.



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Figure 2-1 Ideal scenario

2.1.2 Recommended Scenario In the recommended scenario, there is no obstruction within the range of 120° above the antenna, as shown in Figure 2-2.

In this scenario, the antenna is installed on an elevated tower or iron tower. During the test, the optimal measurement result can be obtained after 4–6 hours. However, if there are maintenance platforms or dense metals (such as angle steel towers with maintenance platforms), the optimal measurement result can be obtained after 12 hours.

Figure 2-2 Recommended scenario

2.2 Complex Application Scenarios 2.2.1 Installation with Electromagnetic Radiation

The AISU should not be directly radiated by large power because the GPS receiver sensitivity is high. However, if the radiation cannot be avoided, install the AISU in compliance with the following principles to ensure the AISU measurement precision, as shown in Figure 2-3.

The AISU should be far away from the main lobe of the radiation source. For example, the AISU should be installed outside the radiation scope of antennas with other types of power.

The AISU should be at least 5 m away from the radiation source.

No obstructions above

No obstructions above



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Figure 2-3 Installation with electromagnetic radiation

2.2.2 Installation with the Multipath Effect Caused by Reflection GPS has high reception sensitivity. It is sensitive to multipath signals. Severe multipath effects have an impact on direction determination. In principles, the AISU cannot be used in reflection scenarios. If the AISU needs to be used in reflection scenarios, install it in the way shown in Figure 2-4.

Figure 2-4 Installation with the multipath effect

Restricted by the GPS performance, existing test results indicate that obstructions on the top of the antenna, electromagnetic radiation, and multipath effect caused by the complex environment and harsh climate seriously affect the test precision. As the factors are complex in actual application, the guide for installing the AISU in complex scenarios will be updated subsequently.

2.2.3 Scenarios to Be Avoided Do not install the AISU in scenarios where the AISU will be totally blocked. For example, do not install the AISU inside a landscaping antenna or under the eave of a stadium.

2 m

Cabinets

5 m

Far away from the radiation source

Avoid the main lobe of the radiation source

AISU User Manual 3 Installation and Replacement


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3 Installation and Replacement

3.1 General Safety Precautions The precautions described in this chapter should be followed when you select measurement and test equipment for installing, operating, and maintaining Huawei products and equipment.

Safety Precautions For the safety of personnel and equipment, comply with the symbols on the equipment and the safety instructions in this document when installing, operating, and maintaining Huawei products and equipment.

Indications such as Danger, Caution, and Note serve only as the supplementary information about general safety precautions.

Local Regulations and Standards Comply with local safety regulations during the operations. Safety precautions described in this document are only supplementary to local safety regulations.

General Requirements for Installation Before installing and maintaining Huawei products, the associated engineers should undergo training and understand proper operation methods and safety precautions.

Only the qualified engineers are allowed to install, operate, and maintain Huawei products and equipment.

Only the qualified engineers can remove safety equipment and maintain the equipment. Equipment or components (including software) should be replaced or changed by the

personnel certified or authorized by Huawei. The operators should timely report the faults or errors that may endanger the safety of

the personnel in charge.



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Grounding Requirements The following requirements are specific for the equipment for which grounding is required:

Never install the equipment before it is properly grounded. Never disconnect the ground cable before the equipment is removed.

Never damage the ground conductor. Never operate the equipment before the ground conductor is installed. The equipment must be grounded permanently. Before operating the equipment, check

the electrical connection of the equipment and ensure that the equipment is securely grounded.

Personnel Safety Never operate the equipment or touch the cables in the case of a thunderstorm. Remove the AC power connector in the case of a thunderstorm. Do not use the fixed

terminal, or touch the terminal or the antenna connector in such weather conditions. To avoid electric shocks, never connect the SELV circuit to the TNV circuit. Never look at the optical port directly with eyes to prevent laser from injuring your eyes. Before operating the equipment, wear ESD clothes, ESD gloves, and ESD wrist strap.

Remove conductive objects such as jewelry and watches to avoid electric shocks or burns.

In case of fire, immediately leave the building or the equipment room. Turn on the fire alarm bell or make an emergency call. Never enter the building on fire.

Equipment Safety Securely install the AISU before operating it. Tighten screws using tools when installing the AISU. Clean out the empty packages in the equipment room after installation is complete.

3.2 Operation Precautions Before installing or replacing an AISU, make sure that:

Operations are performed by qualified installation personnel. Transmit power of the antenna is disabled, and the antenna is in non-working state.



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3.3 Installation and Maintenance Tools Table 3-1 Installation and maintenance tools

Tool Exterior Function

Gloves

Used to protect hands from injuries

Safety belt

Used to protect the safety of personnel working on the tower platform

Phillips screwdriver

Used to fasten or loosen screws

Utility knife

Used to cut tape

Insulation tape

Used for waterproofing

Waterproof tape

Used for waterproofing

3.4 Installation Guide 3.4.1 Bracket Pre-Assembling under the Tower

Step 1 Assemble the AISU bracket.



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Each bracket provides two groups of installation holes: group A and group B, as shown in the following figure. During AISU installation, group B is recommended. If the AISG connector interferes with the pole, group A can be used.

Step 2 Install the AISU on the AISU bracket.

Step 3 Connect the AISU cables and take waterproof measures.

Wrap one layer of insulation tape, three layers of waterproof tape, and three layers of insulation tape in sequence for cable waterproofing.



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3.4.2 Installation on the Tower

Installing the Bracket

Step 1 Install one end of the bracket into the antenna top cover and then tighten the 1# screw so that the hook is located between the antenna top cover and the antenna radome.

Step 2 Move the sliding pole of the bracket so that the other end of the bracket is inserted into the antenna top cover. Then, tighten the 2# screw.

Step 3 Tighten the 3# screw.

The bracket must be aligned with the edge of the antenna top cover. The hook on the bracket must be completely located in the gap between the antenna top cover and

the antenna radome, and the bottom of the hook must be in good contact with the lower edge of the antenna top cover. Use a wrench to knock the position shown in the follow figure so that the hook is installed properly.

After the bracket is installed, confirm that the bracket is secured properly.



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The 3# screw needs to be moved to the position shown in the following figure when the length of the antenna top cover is less than 210 mm. If the antenna top cover is longer than 210 mm, the 3# screw needs to be moved leftward.

Installing the AISU

Install the pre-assembled AISU onto the bracket, as shown in the following figure.

For safety concern, the AISU must be bound securely using a safety rope before being carried onto the tower and installed. After the AISU is installed, remove the safety rope. For antennas which are difficult to handle, the mechanical tilt can be increased before AISU installation. After the AISU is installed, restore the mechanical tilt.

D



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3.4.3 Fixing the Cables Bend the AISG and ground cables to the pole, and fix them to the pole in the proper position using cable ties. Then, bind them with the antenna feeder at the bottom of the antenna.

The bending radius of the cable must be at least three times the cable diameter.

3.5 AISU Replacement Remove the AISU from the bracket, as shown in the following figure.

For details about how to install a new AISU after removing the old one, see section 3.4 "Installation Guide."

----End

AISU User Manual 4 Networking Modes


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4 Networking Modes

The AISU is a remote antenna extension (RAE) device which can be installed in two scenarios. Based on the number of RAE devices connected to the control link, the AISU can be installed in regular mode or daisy-chain mode.

An RRU can control only one AISU, and the AISU must be installed on the antenna connected to the

RRU. The following figures show typical AISU application scenarios. For complex scenarios, contact

Huawei engineers before using the AISU. When an antenna shared by different operators is equipped with an AISU, engineering parameters

can be obtained only on eNodeBs in the AISU link. Operators cannot share the AISU automatically to obtain engineering parameters. (This function may be supported in later versions.)

4.1 Regular Installation Scenario In regular installation mode, only one AISU is installed in a sector, or other antenna line devices (ALDs) in the link between the RRU and AISU do not have any RAE devices. The following figures show the AISU installed in regular mode.

NOTE



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Figure 4-1 AISU installed in regular mode

Figure 4-2 AISU connected to an external RCU

AISG cable

RCU

BBU

AISU

RRU

AISG C

able

RRU

AISU

BBU



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Figure 4-3 AISU connected to an SBT or STMA

Figure 4-4 AISU connected to an antenna without an RAE device

AISG C

able

RRU

AISG port

AISU

BBU

RET

AISG cable

SBT

BBU

AISU

RRU



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4.2 Daisy-Chain Installation Scenario In daisy-chain mode, the AISU is connected to an antenna with an RAE device and controlled by the port of a sector. Besides the AISU, other RAE devices are configured.

If an AIMM with the RAE function is connected to an AISU (as shown in Figure 4-5), check whether the cascading mode configured for the AIMM is consistent with the actual cascading mode. For details about how to change and query the cascading mode, see Smart Antenna LTE TDD Configuration Guide.

The AISU can be used only when MET antennas in LTE TDD mode are upgraded to RET antennas

Figure 4-5 AISU connected to an antenna with an RAE device

This scenario applies only to the AIMM with the hardware version of WD81MANARCU_VER.B and software version of V400R002C02SPC101 or later.

NOTE

AISG C

able

BBU

AISU

AISG part

Jumper

RRU

Internal RAE

AISU User Manual 5 Configuration Guide


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5 Configuration Guide

5.1 AISU Used with Huawei Base Stations You can configure an AISU by running man-machine language (MML) commands on the local maintenance terminal (LMT) or U2000. Figure 5-1 shows the main user interface (UI) of the LMT for configuring and maintaining an AISU.

Figure 5-1 Main UI of the LMT

1: MML command navigation area 2: Command export area 3: Command editing area 4: Parameter input area

You can configure an AISU by running MML commands using any of the following methods:

In Navigation Tree on the MML tab page, double-click an MML command, enter parameters in the parameter input area, and then click Exec or press F9.

In the parameter input area, enter a command in Command Input(F5), click Assist or press Enter, specify parameters in the parameter input area, and click Exec or press F9.

Select a command from the History Command drop-down list, and click Exec or press F9.

In the parameter input area, parameters in red are mandatory and parameters in black are optional.

1

2

3

4



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This document describes how to run MML commands only for DBS3900 LTE

V100R007C00SPC170. The maintenance terminal UI, MML commands, and operating mode vary slightly depending on the eNodeB version.

For details about MML commands and maintenance terminal operations, see the help information about the related maintenance terminal.

This document describes how to configure the AISU only by entering commands in Command Input(F5).

Before configuring the AISU, ensure that the AISU is securely installed and understand the AISU networking mode.

5.1.1 AISU Configurations

Turning on the AISU Power Switch You can run the MOD RETPORT command to turn on the RRU power switch and set the current alarm threshold if the AISU is connected to the RET port of the RRU directly or over the external RCU or RET port of the EasyRET antenna.

You can run the MOD ANTENNAPORT command to turn on the RRU power switch and set the current alarm threshold if the AISG port of the AISU is connected to the RRU RF port over the SBT, or RET port of the EasyRET antenna in TDD mode.

This section describes how to turn on the power switch to the AISU when the AISU is directly connected to the RRU over the AISG cable.

Procedure Step 1 In the parameter input area, enter MOD RETPORT in Command (F5), and then click Assist

or press Enter.

Step 2 In the parameter input area, specify related parameters.

The parameter values in the following figure are for reference only.

NOTE



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Cabinet No., Subrack No., Slot No. and Port No. are specified based on the configurations of Huawei base stations.

It is recommended that Current Alarm Threshold Type be set to USER_SELF_DEFINE because the current may increase during RCU calibration. The alarm generation and clearance thresholds are configured based on the number of connected RCUs. For details, see Table 5-1.

The power switch for the ANT port and the ALD power switch for the RET port on the RRU or RFU cannot be turned on at the same time. Otherwise, the system displays a failure message.

Step 3 Press F9 or click Exec.

If Operation succeeded is displayed in the command export area, the AISU power switch is turned on successfully. If the power switch fails to be turned on, identify causes and reset the power switch.

Table 5-1 AISU antenna configuration specifications for current alarm thresholds

Power Supply Port

Antenna Networking Mode

Undercurrent Alarm Reporting Threshold (mA)

Undercurrent Alarm Clearance Threshold (mA)

Overcurrent Alarm Reporting Threshold (mA)

Overcurrent Alarm Clearance Threshold (mA)

RET port on the RRU

One AISU 10 15 350 330

RET port on the RRU

N external RCUs cascaded and then connected to the AISU

10 x N + 10 15 x N + 10 100 + 100 x N + 350

100 + 80 x N + 330

One RCU + AISU 20 25 550 510

Two RCUs + AISU 30 40 650 590

RET port on the RRU

N EasyRET2.0 antennas cascaded and then connected to the AISU

10 x N + 10 15 x N + 10 100 + 100 x N + 350

100 + 80 x N + 330

One EasyRET2.0 antenna + AISU

20 25 550 510

Two EasyRET2.0 antennas + AISU

30 40 650 590

RF port of base stations

SBT + AISU 30 35 650 610

The LTE eNodeB, EasyRET2.0 antenna are used as examples and for reference only. When antennas are connected in daisy-chain mode:

a. If single-band or dual-band EasyRET2.0 antennas are used, the total number of the RET SNs cannot exceed 6. For example, a dual-band antenna contains two internal RET devices, and a maximum of three dual-band antennas are supported.

b. If tri-band or multi-band EasyRET2.0 antennas are used, the number of the AIMMs cannot exceed 2.

c. If more antennas in daisy-chain mode are required, contact Huawei engineers before the operation.



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----End

Querying the Operating Status of the AISU You can run the DSP RETPORT command to query the RRU power conditions and check whether the power switch for the RET port is turned on if the AISG port of the AISU is connected to the RRU RET port directly or over the external RCU or RET port of the EasyRET antenna.

You can run the DSP ANTENNAPORT command to query the RRU power conditions and check whether the power switch for the RET port is turned on if the AISG port of the AISU is connected to the RRU RF port over the SBT, or RET port of the EasyRET antenna in TDD mode.

This section describes how to check whether the power switch to the AISU has been turned on when the AISU is directly connected to the RRU over the AISG cable.

Procedure Step 1 In the parameter input area, enter DSP RETPORT in Command (F5), and then click Assist

or press Enter.


The parameter values in the following figure are only for reference.

For details about the description of the parameters, see the notes in section "Turning on the AISU Power Switch."


If Operation succeeded is displayed in the command export area, the actual current is queried successfully. If the actual current fails to be queried, identify causes and query the actual current again.



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----End

Scanning the AISUs If the AISU is working properly, you can run the SCN ALD command to scan the AISU connected to the base station. All the AISUs physically connected to the base station can be scanned, regardless of whether these AISUs are configured or not.

Procedure Step 1 In the parameter input area, enter SCN ALD in Command Input (F5), and then click Assist

or press Enter.




If Operation succeeded is displayed in the command export area, the AISU is scanned successfully. If the AISU fails to be scanned, identify causes and scan the AISU again.

Figure 5-2 Scan result of AISUs connected in regular mode



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The SN starting with the letter Z indicates the SN of the AISU. For details about the SN, see section 1.4 "Description of AISU SNs."

If the AISUs are connected in daisy-chain mode, two SNs are scanned. The correct SN must be read.

Figure 5-3 Scan result of AISUs connected in daisy-chain mode

----End

Adding an AISU You can run the ADD RAE command to add AISUs according to the scanning result.

Procedure Step 1 In the parameter input area, enter ADD RAE in Command (F5), and then click Assist or

press Enter.



The AISU can be configured in either of the following ways based on the installation scenario.

Figure 5-4 Parameter configuration for AISUs connected in regular mode



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Figure 5-5 Parameter configuration for AISUs connected in daisy-chain mode

Control Port Cabinet No., Control Port Subrack No., and Control Port Slot No. are configured based on the configuration of Huawei base stations. If the AISU is installed in regular mode, the R0A or RET port on the RRU functions as the control port.

Device Name is user-defined and must be unique in the system. RAE Subunit Number is set to 1. Antenna Scenario is configured based on the actual physical conditions. Otherwise, the base station

cannot normally communicate with the AISU. If AISUs are installed in regular mode, Vendor Code and Serial No. can be left blank, as shown in

Figure 5-4. If AISUs are installed in daisy-chain mode, Vendor Code and Serial No. must be specified, as shown in Figure 5-5.

Vendor Code and Serial No. are obtained based on the scan result. For details, see section"Scanning the AISUs." Ensure that values of these two parameters are correct.


If Operation succeeded is displayed in the command export area, the AISU is added successfully. If the AISU fails to be added, identify causes and add the AISU again.

----End

Querying Antenna Sector Status You can run the DSP SECTOR command to query the antenna sector status.

Procedure Step 1 In the parameter input area, enter DSP SECTOR in Command (F5), and then click Assist or

press Enter.





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If Operation succeeded is displayed in the command export area, the sector status is queried successfully. If the sector status fails to be queried, identify related causes and query the sector status again.

----End

Setting the AISU Properties You can run the MOD RAEDEVICEDATA command to modify the AISU properties.

Procedure Step 1 In the parameter input area, enter MOD RAEDEVICEDATA in Command (F5), and then

click Assist or press Enter.





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Antenna Bearing, Installed Mechanical Tilt, Altitude, Latitude With Degree Format, and Longitude With Degree Format are read-only.

Antenna Model Number, Serial No., Band, Beamwidth, Gain, Installation Date, and Base Station ID can be modified as required.

The value of Sector ID is set to the sector ID queried in section "Querying Antenna Sector Status."


If Operation succeeded is displayed in the command export area, the AISU properties are modified successfully. If the AISU properties fail to be modified, identify causes and modify the AISU properties again.

Step 4 Wait for 6 hours and query antenna engineering parameters after the test data is stable.

----End

Querying the AISU Properties You can run the DSP RAEDEVICEDATA command to query the AISU engineering parameters, including the antenna azimuth, mechanical tilt, latitude, longitude, and altitude.

Procedure Step 1 In the parameter input area, enter DSP RAEDEVICEDATA in Command (F5), and then

click Assist or press Enter.




If Operation succeeded is displayed in the command export area, the AISU properties are queried successfully. If the AISU properties fail to be queried, identify causes and query the AISU properties again.



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As shown in the preceding figure:

Antenna Bearing is 356.6 degree. Installed Mechanical Tilt is 0.3 degree. Altitude is 507.5 m.

Longitude With Degree Format is 108.873143 degree. Latitude With Degree Format is 34.192208 degree.

----End

5.1.2 AISU Maintenance and Configurations

Loading AISU Software You can run the DLD ALDSW command to download the software to the AISU. The AISU software is provided by the supplier.

Procedure Step 1 In the parameter input area, enter DLD ALDSW in Command (F5), and then click Assist or

press Enter.



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Operate Mode indicates the method of loading ALD software commands. This parameter can be set

to CTRLPORT, SITE, or DEVICENO. Set this parameter to a proper value based on different operation modes.

It is recommended that this parameter be set to DEVICENO, not to SITE. After saving the software to the FTP server, specify the IP address, user name, password, and file

path of the server, the system will download configuration data and software from the FTP server. Enter a valid FTP server IP address in FTP Server IP.


If Operation succeeded is displayed in the command export area, the AISU software is loaded successfully. If the AISU software fails to be loaded, identify causes and load the AISU software again.

----End

Querying the AISU Version Information You can run the DSP ALDVER command to query the AISU version information, including the device type, SN, software version, hardware version, and protocol version.

Procedure Step 1 In the parameter input area, enter DSP ALDVER in Command (F5), and then click Assist or

press Enter.






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If Operation succeeded is displayed in the command export area, the AISU version information is queried successfully. If the AISU configurations fail to be queried, identify causes and query the AISU version information again.

----End

Displaying the AISU Dynamic Information You can run the DSP RAE command to display the AISU dynamic information.

Procedure Step 1 In the parameter input area, enter DSP RAE in Command (F5), and then click Assist or

press Enter.




If Operation succeeded is displayed in the command export area, the AISU dynamic information is queried successfully. If the AISU dynamic information fails to be queried, identify causes and query the AISU dynamic information again.



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----End

Resetting the AISU You can run the RST ALD command to reset the AISU. If the AISU is reset by running this command, antenna engineering parameters saved are not affected.

Procedure Step 1 In the parameter input area, enter RST ALD in Command (F5), and then click Assist or

press Enter.




If Operation succeeded is displayed in the command export area, the AISU is reset successfully. If the AISU fails to be reset, identify causes and reset the AISU again.

----End

Deleting an AISU You can run the RMV RAE command to remove the AISU.



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Procedure Step 1 In the parameter input area, enter RMV RAE in Command (F5), and then click Assist or

press Enter.




If Operation succeeded is displayed in the command export area, the AISU is removed successfully. If the AISU fails to be removed, identify causes and removed the AISU again.

----End

5.2 AISU Used with Base Stations of Other Suppliers Perform IOT tests before using the AISU with base stations of other suppliers and determine the AISU configuration procedure and precautions accordingly.

AISU User Manual 6 Maintenance Guide


33

6 Maintenance Guide

6.1 AISU Used with Huawei Base Stations 6.1.1 Non-Alarm Maintenance

This chapter describes the maintenance methods when the AISU SN cannot be scanned or the device link is abnormal after an AISU is added.

AISU Scanning Failure This section describes how to handle the problem when the AISU SN cannot be scanned during AISU configuration and operation.

Context An AISU has only one SN, which can be scanned by a control port when the AISU works in regular or daisy-chain mode. Table 6-1 describes the symptom if the SN cannot be scanned. For details about the AISU SN, see section 1.4 "Description of AISU SNs."



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Table 6-1 Symptom

Symptom Impact on the System

Severity

Possible Cause

The AISU SN cannot be scanned.

Not all AISUs connected to the eNodeB are identified, configured, and managed. As a result, engineering parameters cannot be obtained.

Major The ALD power supply is disabled.

The AISU is disconnected from the RRU.

Other ALDs between the AISU and the RRU are faulty.

The AISU is faulty. The AIMM version is not

supported in cascading scenarios.

The AIMM cascading mode is incorrectly changed in cascading scenarios.

The eNodeB is faulty. The system is incompatible.

Procedure Step 1 Check the AISU installation scenario.

If the AISU is connected to an AIMM with the RAE function, check the AIMM version. For details, see section 4.2 "Daisy-Chain Installation Scenario." − If the hardware version is incorrect, replace the AIMM and upgrade the software to a

mapping version. − If only the software version is incorrect, upgrade the software to a mapping version. If both the hardware and software versions are correct, check whether the AIMM cascading mode is correct. − If yes, go to Step 2. − If no, change the cascading mode, and then go to Step 2. For details about how to

change the cascading mode, see Smart Antenna LTE TDD Configuration Guide. If the AISU is connected to an AIMM without the RAE function or the AISU is not

connected to an AIMM, go to Step 2.

Step 2 Run the SCN ALD command and check the command output.

If the AISU SN can be scanned, no further action is required. If the AISU SN cannot be scanned, go to Step 3.

Step 3 Run the SCN ALD command repeatedly and check the command outputs.


Step 4 Run the DSP RETPORT or DSP ANTENNAPORT command and check the command output. (Refer to section "Querying the Operating Status of the AISU" to determine which



35

command to be run.) Check whether the ALD power switch is turned on and parameters are correctly configured.

If the power switch is turned on and the current is normal, go to Step 5. If the power switch is turned off, run the MOD ANTENNAPORT or MOD

ANTENNAPORT command to turn on the power switch again. (Refer to "Turning on the AISU Power Switch" to determine which command to be run.) Run the DSP ANTENNAPORT or DSP RETPORT command to check whether the AISU current consumption is normal. If yes, go to Step 1. If no, go to Step 5.

Step 5 If the AISU SN cannot be scanned, check whether the AISU is properly connected to the RRU.

If the AISU is properly connected to the RRU, go to Step 6. If the connection is incorrect or the cable between the AISU and the RRU is loose,

reconnect the AISU to the RRU, and then go to Step 1.

Step 6 Run the SCN ALD command and check the command output.


Step 7 Replace the AISU. After 4–5 minutes, scan the AISU SN again.

If the AISU SN can be scanned, no further action is required. If the alarm persists, contact Huawei technical support engineers.

----End

Device Link Failure After AISU Addition

Context After an AISU is added, a message indicating that the ALD maintenance link is abnormal is reported. When other commands are executed, a message indicating that the AISU does not work is reported.

Table 6-2 describes the device link failure symptom after the AISU is added.

Table 6-2 Symptom


Severity Possible Cause

After an AISU is added, a message indicating that the ALD maintenance link is abnormal is reported. When other commands are executed, a message indicating that the AISU does not work is reported.

The communications link fails to be set up. As a result, the primary and secondary sites cannot communicate with each other, and the primary site cannot manage the RET antennas.

Major Communications exceptions occur when the ADD RAE command is run.



36

Procedure Step 1 Run the RMV RAE command to remove the AISU.

Step 2 Run the SCN ALD command to scan the AISU.

Step 3 Run the ADD RAE command to add the AISU.

Step 4 Check whether the alarm is cleared on the LMT.

If the alarm is cleared, no further action is required. If the alarm persists, go to section "Maintenance Link Failure."

----End

6.1.2 Alarm Maintenance

Maintenance Link Failure

Context If ALD Maintenance Link Failure is reported during AISU operation and maintenance, the eNodeB determines whether to clear the alarm or not based on the actual link conditions.

Table 6-3 describes the maintenance link failure symptom.

Table 6-3 Symptom


Severity Possible Cause

The eNodeB periodically checks the AISG link status of the AISU. When the AISG link is abnormal, the eNodeB reports ALD Maintenance Link Failure.

The AISU maintenance link is disconnected. As a result, the AISU cannot be configured, and antenna engineering parameters cannot be obtained.

Major An AISU that does not exist is configured.

The AISU is disconnected from the eNodeB.

Multiple RAE devices are configured in non-daisy-chain scenarios.

The AISU is faulty. The ALD power switch

on the eNodeB is turned off.

The eNodeB is faulty.

Figure 6-1 shows the detailed information about ALM-26541 ALD Maintenance Link Failure.



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Figure 6-1 ALD Maintenance Link Failure

Procedure Step 1 Run the LST RAE command and check the command output. Check whether any

unnecessary AISU is configured and the AISU for which the alarm is reported needs to be configured.

If the AISU needs to be configured, go to Step 3. If the AISU does not need to be configured, run the RMV RAE command to remove

unnecessary AISUs, and then go to Step 2.

Step 2 Check whether the alarm is cleared.

If the alarm is cleared, no further action is required. If the alarm persists, go to Step 3.

Step 3 Run the SCN ALD command to scan the RAE device.

If the AISU can be scanned, go to Step 4. If the AISU cannot be scanned, perform operations by referring to section "AISU

Scanning Failure."

Step 4 Run the LST RAE command to check whether the AISU is correctly configured.

If the AISU is correctly configured, go to Step 5. If the AISU is incorrectly configured, for example, the vendor code and SN of the AISU

is not configured or incorrectly configured, the scanned vendor code and SN are inconsistent with those configured, and extra spaces exist before or after the SN, perform the following operations: − Run the RMV RAE command to remove the abnormal AISU. − Run the ADD RAE command to add the AISU again. After 5 minutes, check whether

the alarm is cleared. If the alarm is cleared, no further action is required. If the alarm persists, replace the AISU. Go to Step 5.



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Step 5 Replace the AISU.

After replacing the AISU, remove the abnormal AISU, and scan, add, and configure the new AISU. After 5 minutes, check whether the alarm is cleared.

If the alarm is cleared, no further action is required. If the alarm persists, contact Huawei technical support engineers.

After replacing the AISU, reconfigure the AISU by referring to section 5 "Configuration Guide."

----End

Hardware Fault

Context If the AISU is faulty, ALD Hardware Fault is reported.

Table 6-4 describes the hardware fault symptom.

Table 6-4 Symptom


Severity Probable Cause

If any component in the AISU is faulty, ALD Hardware Fault is reported.

The downtilt of the RET antenna fails to be regulated.

Minor The AISU board is faulty or damaged.

Figure 6-2 shows the detailed information about ALD Hardware Fault.

Figure 6-2 ALD Hardware Fault



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Procedure Step 1 Reconfigure the AISU.

1. Run the RMV RAE command to remove the AISU. 2. Run the SCN ALD command to rescan the AISU. 3. If the AISU SN is scanned, run the ADD RAE command to add the AISU.

− If the added AISU SN is consistent with the former SN and the alarm is cleared, no further action is required.

− If the alarm persists, go to Step 2.

Step 2 Restart the AISU.

1. Run the MOD RETPORT or MOD ANTENNAPORT command to turn off the power switch.

Figure 6-3 Turning off the RET power switch

2. Run the MOD RETPORT or MOD ANTENNAPORT command to turn on the power

switch. Parameters in Figure 6-4 are for reference only. For details about parameters during actual configuration, see the configuration guide.

Figure 6-4 Turning on the RET power switch

3. After 5 minutes, check whether the alarm is cleared.

− If the alarm is cleared, no further action is required. − If the alarm persists, go to Step 3.

After the AISU is restarted, engineering parameters, such as the azimuth, altitude, longitude, latitude, and mechanical tilt, need to be measured again.



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Step 3 Replace the AISU.

After replacing the AISU, remove the abnormal AISU, and scan, add, and configure the new AISU. After 5 minutes, check whether the alarm is cleared.

If the alarm is cleared, no further action is required. If the alarm persists, contact Huawei technical support engineers.

After replacing the AISU, reconfigure the AISU by referring to section 5 "Configuration Guide."

----End

6.1.3 AISU Replacement For details, see section 3 "Installation and Replacement."

6.2 AISU Used with Base Stations of Other Suppliers For other suppliers' base stations that support the AISU, perform maintenance based on the IOT process and results.

AISU User Manual A Appendix


41

A Appendix

A.1 Acronyms and Abbreviations Acronym or Abbreviation Full Name

ALD antenna line device

RAE remote antenna extension

MML man-machine language

AISU antenna information sensor unit

BT bias tee

SBT smart bias tee

AISG Antenna Interface Standards Group

SBAS Satellite-Based Augmentation System

AISU User Manual A Appendix


42

A.2 Frequency Bands of the Device Information Operating Band Uplink Frequencies

(UE Transmit, NodeB Receive) Downlink Frequencies (UE Receive, NodeB Transmit)

Band I 1920–1980 MHz 2110–2170 MHz

Band II 1850–1910 MHz 1930–1990 MHz

Band III 1710–1785 MHz 1805–1880 MHz

Band IV 1710–1755 MHz 2110–2155 MHz

Band V 824–849 MHz 869–894 MHz

Band VI 830–840 MHz 875–885 MHz

Band VII 2500–2570 MHz 2620–2690 MHz

Band VIII 880–915 MHz 925– 960 MHz

Band IX 1749.9–1784.9 MHz 1844.9–1879.9 MHz

Band X 1710–1770 MHz 2110–2170 MHz