Radio Lte 4g / 5g 

20W LTE Outdoor Base Station

User Manual

20W LTE Outdoor Base Station Model#: LKAV-7402.

All Rights Reserved

Version: 2024V1.0

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20W LTE Outdoor Base Station

Content

Ⅰ. Introduction.........................................................................................................3

1.1 Introduction.......................................................................................................3

1.2 Hardware Structure...........................................................................................4

1.3 Software Structure............................................................................................5

1.4 Specification .....................................................................................................6

Ⅱ. Using Instruction................................................................................................7 2.1 Installation ........................................................................................................7

2.1.1 RF Antenna Installation ..........................................................................7

2.1.2 Power on................................................................................................7

2.2 Software Configuration .....................................................................................8

2.2.1 Connect to the PC ..................................................................................8

2.2.2 Login eNodeB Management System.......................................................8

2.2.3 System Configuration .............................................................................9

2.2.4 Performance Check................................................................................9

2.2.5 Alarm Check.........................................................................................10

2.2.6 Software Update...................................................................................10

2.2.7 System Tool..........................................................................................11

2.2.8 Modify Password ..................................................................................11

2.2.9 RRU Operational Status Check ............................................................12

2.2.10 Login EPC Management System........................................................13

2.2.11 EPC System Configuration ................................................................13

2.2.12 EPC Parameter Configuration.............................................................14

2.2.13 EPC System Management..................................................................15

2.2.14 EPC System Tool ...............................................................................15

2.3 Device Status Check.......................................................................................16

2.4 Notes..............................................................................................................16

Ⅲ. Appendix...........................................................................................................17

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20W LTE Outdoor Base Station

Ⅰ. Introduction

1.1 Introduction

The LKAV-7402 is a highly integrated private network base station, mainly composed of baseband processing unit (BBU), remote radio remote unit (RRU) and EPC. It is a miniaturized LTE private network base station specially developed according to the needs of the private network communication market, supports dual-channel            antenna   configuration,  works  in     the                        1.4GHz   band (400M/600M/1.4G/1.8G can be customized), supports 5MHz, 10MHz, 20MHz bandwidth. It is especially suitable for providing wireless coverage solutions for various industries in the private network communication market, such as smart cities, intelligent transportation, subways, tunnels, mines, petroleum, ports, armed police, civil air defense, emergency and other environments.

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20W LTE Outdoor Base Station

1.2 Hardware Structure

The base station includes a hardware module and external antennas; the functions of the hardware module are as shown below.

Hardware modules can be divided into power supply unit, clock unit, core network unit, baseband unit, RF unit, GPS unit, etc.

▪Power supply unit: Provides power through a power adapter.

▪Clock unit: Provides interfaces, intermediate frequency and radio frequency clocks.

▪GPS unit: Synchronizes clocks.

▪Core network unit: Comprehensive database storing user subscription information, user authentication, data routing control and bearer management. ▪Baseband unit: Performs baseband processing, operation monitoring and management functions.

▪RF unit: Provides RF uplink and downlink processing functions.

▪Antennas are installed on the structure exterior according to specifications and frequency bands.

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20W LTE Outdoor Base Station

1.3 Software Structure

The base station software architecture is as shown below:

▪OAM: provides functions such as version management, alarm management, diagnostic testing, configuration management, tool management, performance management, system management, dynamic data management, and communication management.

▪S1/X2: provides communication with the core network via the S1 interface and manages the X2 interface with neighboring base stations.

▪RRC/RRM: provides wireless resource management functions for UEs in this cell.

▪GTPU/PDCP/RLC/MAC/MAC Scheduler: provides Uplane transmission functions for this cell.

▪L1 physical layer communication functions.

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20W LTE Outdoor Base Station

1.4 Specification

RF Characteristics

System Mode

TDD LTE

Modulation Mode

QPSK/16QAM/64QAM

Frequency

1447-1467MHz (400M/600M/1.4G/1.8G Customizable)

Bandwidth

5/10/20MHz

RF Channel

2T2R

Output Power

2*10W

3GPP

Release 9

Sensitivity

≤-101.5dBm

Network Characteristics

Authentication

USIM Quintuple Authentication

Up/Downlink rate

40/80Mbps

Time Slot Ratio

cfg0、1、2、3 … 10

Maximum Concurrent

128

Encryption

AES

Electrical Characteristics

Working Voltage

AC 100-240V

Power Consumption

≤150W

Physical Characteristics

Weight

12.5kg

Dimensions

370*295*150mm

IP Rating

IP67

Storage Temp.

-45°C~85°C

Working Temp.

-40°C~75°C

Others

Synchronization Method

Support Sniffer/GPS/NL/IEEE 1588v2

Feedback Method

RJ-45 Ethernet interface (GE)

Scheduling Method

3GPP standard QCI

Frequency Stability

<±0.05ppm

Frequency Error

±0.05 x10-6

ACPR

>45dB

MTBF

≥ 150000 h

MTTR

≤ 1h

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20W LTE Outdoor Base Station

Ⅱ. Using Instruction

The LKAV-7402 consists of a host, power cord, antenna, etc. Before installation, check that the device and all accessories are complete.

2.1 Installation

2.1.1 RF Antenna Installation

The LKAV-7402 system operates in 2T2R mode, with feeder cables connected to the two ANT interfaces on the device, and the antenna connected to the feeder cable. (Make sure the antenna interface is tightened and the antenna frequency is correct before using, otherwise it will affect reception). As shown below:

Note: During use, all feeder cables need to be fully extended, and there should be a distance of 1-2 meters between the two antennas. Before powering on, make sure to connect these two antennas first. After use, turn off the device before removing the antennas, as not doing so may damage the equipment.

2.1.2 Power On

Before powering on, confirm that both RF antennas are properly connected and then connect the power cord. The POWER indicator light on the device will be solid green when powered on, and the RUN indicator light will flash slowly when the device is running normally.

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20W LTE Outdoor Base Station

2.2 Software Configuration

2.2.1 Connect to the PC

Connect the device to the PC with an Ethernet cable, then go to "Network Connection" - "Properties" - " TCP/IPv4" - "General". Add the IP address: 192.168.32.** (use the 32 subnet, make sure it does not conflict with the device's IP), subnet mask: 255.255.255.0, default gateway: 192.168.32.251 (core network address). After adding this information, click OK to save. As shown below:

2.2.2 Login eNodeB Management System

Open the browser, enter the BBU address: 192.168.32.199, and access the base station management interface.

Username: admin       Password: 12345678. As shown below:

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20W LTE Outdoor Base Station

2.2.3 System Configuration

Enter the eNodeB management system page, click on "System Configuration" -"Local Network Paras" to view the basic parameters of the base station IP (the IP of this BBU is 192.168.32.199), as shown below:

2.2.4 Performance Check

Enter the eNodeB management system page, click on "Performance" - "Reported Performance Data" to view the basic parameters of the running base station. If there is a numerical value for the running time instead of 0S (zero seconds), it indicates that the base station is running normally, as shown below:

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20W LTE Outdoor Base Station

2.2.5 Alarm Check

Enter the eNodeB management system page, click on "Alarms" - "Current Alarms" to check if there are any abnormal alarms in the base station operation.

2.2.6 Software Update

Enter the eNodeB management system page, click on "System Tools" - "System Management"-"Software Upgrade" to import the system upgrade package stored on the local computer. Click on "Submit", wait for the prompt indicating that the file upload is complete, and restart the base station to complete the upgrade process.

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20W LTE Outdoor Base Station

2.2.7 System Tool

Enter the eNodeB management system page, click on "System Tools" - "System Management" to reboot the base station (or perform a power cycle restart), as shown below:

2.2.8 Modify Password

Enter the eNodeB management system page, click on "System Tools" - "Change Login Password" to modify the login password for the base station management system. The username is admin. As shown below:

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20W LTE Outdoor Base Station

2.2.9 RRU Operational Status Check

Login IP: 192.168.100.169; Username: root; Password: root

VSWR and Output Power Query:

Login to the RRU management interface, select the "State Paras" menu, check the "Select All" option at the bottom left corner, and click on "Query". Ensure that CH0_VSWR and CH1_VSWR are less than or equal to 1.5. If the VSWR is greater than 2.0, immediately power off the system and check if the antennas are properly connected. The values of CH0 OutPower and CH1 OutPower should generally be around 30, indicating wireless signal output.

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20W LTE Outdoor Base Station

2.2.10 Login EPC Management System

Open the browser, enter the EPC gateway IP: 192.168.32.251, to access the EPC management system interface.

Username: admin         Password: 123456 As shown below:

2.2.11 EPC System Configuration

Enter the EPC management system page, click on "System Config" - "Local Network Paras" to view the EPC's IP address (the static IP address of network card 1), as shown below:

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20W LTE Outdoor Base Station

2.2.12 EPC Parameter Configuration

Enter the EPC management system page, click on "Parameter Config" - "HSS", then click on "Add", fill in the IMSI (card number), AMF, KI, OP or OPC, and IP index (UE terminal IP suffix). Once filled in, save it. As shown below:

Note: Among the five items that need to be added, only IMSI (card number) and IP index are different, while the other three items remain the same.

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20W LTE Outdoor Base Station

2.2.13 EPC System Manage

Enter the EPC management system page, click on "System Management" -"System Reboot" to reboot the device (or perform a power cycle restart), as shown below:

2.2.14 EPC System Tool

Enter the EPC management system page, click on "System Tools" - "Login Key Modified" to modify the login password for the EPC. The username is admin. As shown below:

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20W LTE Outdoor Base Station

2.3 Device Status Check

A solid POWER light indicates that the device is powered on, while a slow flashing green RUN light indicates that the device is operating normally. By checking the indicator lights, you can understand the device's operational status. The status of the indicator lights is as follows:

Indicator

Color

Status

Description

POWER

Green

Solid

Powered On

GPS

Green

RUN

Green

Slow Flashing

Device Working Normally

LAN1

Green

Fast Flashing

LAN2

Green

Solid

2.4 Notes

In wireless engineering applications, the following points should be noted when using the equipment:

«Environment: The transmission distance and performance of this system are affected by geographical and electromagnetic environments. Therefore, a site survey and electromagnetic environment test should be conducted before use to ensure that the frequency used does not interfere.

«Power Supply: Before powering on, check whether the antenna interface is loaded or connected to an antenna to avoid short circuits or open circuits.

«Antenna Selection: Selecting an antenna should be based on the frequency band used. For long-distance transmission, high-gain antennas or directional antennas can be selected to improve system gain if conditions permit.

«Antenna Installation： Ensure that all components of the antenna are securely installed and pay attention to waterproofing of connectors. For omnidirectional antennas, ensure vertical polarization and avoid parallel metal objects near the antenna. For directional antennas, pay attention to polarization direction. It is recommended to have a metal reflector surface below suction cup antennas during installation. Use RF cables preferably SYWV50-7 or higher grade cables, with a length not exceeding 20 meters.

«Note: Before using the device, make sure to connect the antenna first before powering on. After use, turn off the power before removing the antenna. Failure to connect the antenna before powering on may cause damage to the device!

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20W LTE Outdoor Base Station

Ⅲ. Appendix

Panel Description：

①GPS Antenna Port - N F, reserved, DO NOT use. ②WAN Port - RJ45

③PWR Port – 3 pin ④LAN Port – RJ45 ⑤ANT1 Port – N F ⑥ANT2 Port – N F

Package Content

Item#

Description

Qty

Remark

1

LTE Base Station

1

2x10W

2

RF Antenna

2

3

RF Feeder Cable

2

5m

4

Power Cable

1

5

CAT Cable

1

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