J Plus Juni JLT622P User manual

J Plus, Inc
1.1
Copyright© 2019 J Plus, Inc
The information contained herein is the property of J Plus and is provided without liability of errors, omissions,
and mistakes. No part maybe reproduced or copied without written permission or contract.
JLT622P User Manual
Version 1.0 Rev. 4
December 4, 2019

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Revision History
Authors
Version
Date
Comments
Hyungdon Ryu
Denny Lee
Tony Jung
John Park
To be added
Version 1.0 Rev 1
May 1, 2018
Release 1st JLT622P User Manual
Hyungdon Ryu
Denny Lee
Eli Park
Tony Jung
Rex Kim
John Park
Version 1.0 Rev 2
October 2, 2018
Modified Figure 14, 23, 83
Modified Table 11, 12
Add 6.2.3.5 LA menu
Add 6.2.3.14 ESON menu
Add 6.3.11 SAS Info menu

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Contents
1Introduction............................................................................................................................................8
1.1 Overview.........................................................................................................................................8
1.2 Type of Small Cell...........................................................................................................................8
1.3 Benefits...........................................................................................................................................8
1.4 Network Block Diagram...................................................................................................................9
2Charactereristics..................................................................................................................................10
2.1 JLT622P System Main Functions .................................................................................................. 10
2.1.1 3GPP Standards ........................................................................................................................... 10
2.1.2 JLT622P System Specifications..................................................................................................... 11
2.1.3 JLT622P Main Functions............................................................................................................... 12
2.2 Equipment Specifications .............................................................................................................. 13
2.3 Environmental Specifications......................................................................................................... 13
2.4 AC/DC Adapter Specifications....................................................................................................... 14
2.5 RF Specifications .......................................................................................................................... 14
2.5.1 Downlink transmission (for 20MHz BW)......................................................................................... 14
2.5.2 Uplink Reception (for 20MHz BW)................................................................................................. 15
2.5.3 Mechincial Specifications............................................................................................................... 15
2.6 RF Block Description..................................................................................................................... 16
2.7 Digital block Description ................................................................................................................ 17
2.8 Software block Description............................................................................................................ 18
2.8.1 LTE protocol Stack........................................................................................................................ 19
2.8.2 Security......................................................................................................................................... 19
2.8.3 Management................................................................................................................................. 20
3Interface and LED Description..............................................................................................................21
3.1 Interface and Connector................................................................................................................ 21
3.2 LED............................................................................................................................................... 22
3.3 RST (Reset switch) ....................................................................................................................... 22
4Initial Connection..................................................................................................................................23
4.1 Cable Connection.......................................................................................................................... 23
4.2 Connection Test............................................................................................................................ 24
5Connection via Web GUI...................................................................................................................... 25
6Web GUI Operation..............................................................................................................................27
6.1 Web GUI Menu ............................................................................................................................. 27
6.2 Configuration Menu....................................................................................................................... 29
6.2.1 General Menu ............................................................................................................................... 29
6.2.1.1 Network Interface.......................................................................................................................... 29
6.2.1.2 Network Function.......................................................................................................................... 33
6.2.1.3 Security Gateway.......................................................................................................................... 34
6.2.1.4 DHCP Server ................................................................................................................................ 34
6.2.1.5 CWMP .......................................................................................................................................... 34
6.2.1.6 Clock sync & SYS time settings..................................................................................................... 35
6.2.1.7 WANPort....................................................................................................................................... 37
6.2.1.8 Statistics Report............................................................................................................................ 37
6.2.1.9 Optional Settings........................................................................................................................... 38
6.2.1.10 Static Routing................................................................................................................................ 38
6.2.1.11 SAS .............................................................................................................................................. 38
6.2.2 PKI Menu...................................................................................................................................... 40
6.2.2.1 eNodeB......................................................................................................................................... 40
6.2.2.2 CA Certificates.............................................................................................................................. 42

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6.2.2.3 CMPv2.......................................................................................................................................... 42
6.2.3 LTE Menu..................................................................................................................................... 44
6.2.3.1 Basic............................................................................................................................................. 44
6.2.3.2 RF................................................................................................................................................. 45
6.2.3.3 S1AP ............................................................................................................................................ 46
6.2.3.4 MR................................................................................................................................................ 46
6.2.3.5 LA................................................................................................................................................. 48
6.2.3.6 Neighbor Cell ................................................................................................................................ 49
6.2.3.7 UTRA Frequency........................................................................................................................... 52
6.2.3.8 UTRA Neighbor Cell...................................................................................................................... 55
6.2.3.9 GERAN Frequency........................................................................................................................ 59
6.2.3.10 GERAN Neighbor Cell................................................................................................................... 62
6.2.3.11 DSCP Mapping ............................................................................................................................. 65
6.2.3.12 CSG.............................................................................................................................................. 66
6.2.3.13 REM/SON..................................................................................................................................... 67
6.2.3.14 ESON............................................................................................................................................ 68
6.2.4 Administrations Menu.................................................................................................................... 69
6.2.4.1 Settings......................................................................................................................................... 69
6.2.4.2 Upgrade Firmware......................................................................................................................... 72
6.2.4.3 Log Setting.................................................................................................................................... 73
6.2.4.4 Debug Mask Setting...................................................................................................................... 75
6.2.4.5 Analysis Log Report ...................................................................................................................... 75
6.2.4.6 Password Change......................................................................................................................... 76
6.2.4.7 Remote Authentication.................................................................................................................. 76
6.2.4.8 Reboot.......................................................................................................................................... 77
6.3 Information Menu.......................................................................................................................... 78
6.3.1 Update Period............................................................................................................................... 78
6.3.2 Device Info.................................................................................................................................... 79
6.3.3 CPU/Memory................................................................................................................................. 80
6.3.4 Process......................................................................................................................................... 80
6.3.5 Status............................................................................................................................................ 81
6.3.6 DHCPC Info.................................................................................................................................. 83
6.3.7 IEEE-1588 Info.............................................................................................................................. 83
6.3.8 GPS Info....................................................................................................................................... 84
6.3.9 Resolved MME IP.......................................................................................................................... 84
6.3.10 RIP Info......................................................................................................................................... 85
6.3.11 SAS Info........................................................................................................................................ 85
6.3.12 LTE Statistics Menu....................................................................................................................... 86
6.3.12.1 UE List.......................................................................................................................................... 86

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List of Figures
Figure 1: Types of Small Cell............................................................................................................................8
Figure 2: Benefits of Small Cell......................................................................................................................... 8
Figure 3: JLT622P and EPC Network Diagram..................................................................................................9
Figure 4: RF Block Diagram............................................................................................................................ 16
Figure 5: Digital Block Diagram....................................................................................................................... 17
Figure 6: Software Block Diagram................................................................................................................... 18
Figure 7: Interface & Connector...................................................................................................................... 21
Figure 8: LED Description............................................................................................................................... 22
Figure 9: JLT622PDirectConnection for Management..................................................................................... 23
Figure 10: JLT622PConnection for Management via Network......................................................................... 23
Figure 11: Ping Test from Control PC to JLT622P via local MGMT Port .......................................................... 24
Figure 12: Web GUI of JLT622P..................................................................................................................... 25
Figure 13: Pop-up Window for Sign-in............................................................................................................. 26
Figure 14: Main Page of JLT622P Web UI...................................................................................................... 26
Figure 15: DHCP Configuration for Network Connection ................................................................................. 29
Figure 16: Network connection configuration page.......................................................................................... 30
Figure 17: Static IP setting outcome................................................................................................................ 30
Figure 18: Vlan Configuration.......................................................................................................................... 31
Figure 19: Registered Vlan Info....................................................................................................................... 32
Figure 20: Network Function........................................................................................................................... 33
Figure 21: Security-GW IP Address Configuration........................................................................................... 34
Figure 22: DHCP setup &CWMP Setup Menu................................................................................................. 35
Figure 23: Clock sync and System time settings.............................................................................................. 36
Figure 24: WAN Port Setup Menu................................................................................................................... 37
Figure 25: Statistics Report setup Menu.......................................................................................................... 37
Figure 26: Optional Setting ............................................................................................................................. 38
Figure 27: Static Routing& SAS...................................................................................................................... 39
Figure 28: eNodeB Private Key and Certificate................................................................................................ 41
Figure 29: Trusted CA Certificates.................................................................................................................. 42
Figure 30: CMPv2........................................................................................................................................... 43
Figure 31: eNodeB Basic Configuration MENU............................................................................................... 44
Figure 32: RF Block........................................................................................................................................ 45
Figure 33: RF Un-block................................................................................................................................... 45
Figure 34: MME Setup.................................................................................................................................... 46
Figure 35:A1 - A5, B1, B2 MR Setup menu..................................................................................................... 47
Figure 36: Link Adaptation Setup.................................................................................................................... 48
Figure 37: Add Neighbor Cell configuration..................................................................................................... 50
Figure 38: Add Confirmation Window.............................................................................................................. 50
Figure 39: Neighbor Cell Information registered. ............................................................................................. 51
Figure 40: Modify Confirmation Window.......................................................................................................... 51
Figure 41: Delete Confirmation Window.......................................................................................................... 51
Figure 42:Handover or Redirection setup menu.............................................................................................. 52
Figure 43: Save confirmation window.............................................................................................................. 52
Figure 44:Add UTRA Frequency configuration ................................................................................................ 53
Figure 45: Add Confirmation Window.............................................................................................................. 53
Figure 46: UTRA Frequency Information registered......................................................................................... 54
Figure 47: Modify Confirmation Window.......................................................................................................... 54
Figure 48: Delete Confirmation Window.......................................................................................................... 55
Figure 49:Handover or Redirection setup menu.............................................................................................. 56
Figure 50: Save confirmation window.............................................................................................................. 56

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Figure 51: Add UTRA Neighbor Cell configuration........................................................................................... 56
Figure 52: Add Confirmation Window.............................................................................................................. 57
Figure 53:Modify and DeleteUTRA Neighbor Cell configuration....................................................................... 57
Figure 54: Modify Confirmation Window.......................................................................................................... 58
Figure 55: Delete Confirmation Window.......................................................................................................... 58
Figure 56:Handover or Redirection setup menu.............................................................................................. 59
Figure 57: Save confirmation window.............................................................................................................. 59
Figure 58: Add GERAN Frequency configuration ............................................................................................ 60
Figure 59: Add confirmation window................................................................................................................ 60
Figure 60:Registered GERAN Frequency configuration................................................................................... 61
Figure 61: Delete confirmation window............................................................................................................ 61
Figure 62:Handover or Redirection setup menu.............................................................................................. 62
Figure 63: Save confirmation window.............................................................................................................. 62
Figure 64:Add GERAN Neighbor Cell configuration......................................................................................... 63
Figure 65: Add confirmation window................................................................................................................ 63
Figure 66:Modify and Delete GERAN Neighbor Cell configuration................................................................... 64
Figure 67: Modify confirmation window ........................................................................................................... 64
Figure 68: Delete confirmation window............................................................................................................ 65
Figure 69: DSCP Mapping Configuration......................................................................................................... 65
Figure 70: CSG Setup..................................................................................................................................... 66
Figure 71: REM / SON Setup.......................................................................................................................... 67
Figure 72: ESON Setup.................................................................................................................................. 68
Figure 73: SaveSettings.................................................................................................................................. 69
Figure 74: SaveConfirmation Window............................................................................................................. 69
Figure 75: Exporting Configuration File........................................................................................................... 70
Figure 76: Importing Configuration.................................................................................................................. 71
Figure 77: BrowsingWindow for Importing Configuration File........................................................................... 71
Figure 78: Import Error Message1 (Example).................................................................................................. 72
Figure 79: Import Error Message2 (Example).................................................................................................. 72
Figure 80: Firmware Upgrade Menu................................................................................................................ 72
Figure 81: Screen after Selecting the New Firmware....................................................................................... 73
Figure 82: Notification Screen during Firmware Upgrade Process................................................................... 73
Figure 83: Log Setting..................................................................................................................................... 74
Figure 84: eNodeB Debug Mask Settings& Analysis Log Report ..................................................................... 75
Figure 85: Password Change.......................................................................................................................... 76
Figure 86: Remote Authentication Configuration ............................................................................................. 76
Figure 87: Reboot Menu................................................................................................................................. 77
Figure 88: Reboot Confirmation Window......................................................................................................... 77
Figure 89: Update Period................................................................................................................................ 78
Figure 90: Device Information Menu................................................................................................................ 79
Figure 91: CPU/Memory Information............................................................................................................... 80
Figure 92: Process Information....................................................................................................................... 80
Figure 93: SoftwareandHardware Status Menu............................................................................................... 81
Figure 94: Alarm Occurrence History.............................................................................................................. 82
Figure 95: DHCP Client Info............................................................................................................................ 83
Figure 96: IEEE-1588 Info............................................................................................................................... 83
Figure 97: GPS Info........................................................................................................................................ 84
Figure 98: Resolved MME IP.......................................................................................................................... 84
Figure 99: LTE RIP Information....................................................................................................................... 85
Figure 100: SAS Information........................................................................................................................... 85
Figure 101: UE List......................................................................................................................................... 86

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List of Tables
Table 1: 3GPP Release 9 Standard Specifications.......................................................................................... 11
Table 2: System Specification......................................................................................................................... 11
Table 3: Main Functions.................................................................................................................................. 13
Table 4: System Specifications....................................................................................................................... 13
Table 5: Environmental Specifications............................................................................................................. 13
Table 6: RF Specifications for DL Transmissions ............................................................................................ 14
Table 7: RF Specifications for UL Receptions ................................................................................................. 15
Table 8: Mechanical Specifications................................................................................................................. 15
Table 9: Interface & Connector Description..................................................................................................... 21
Table 10: LED Description.............................................................................................................................. 22
Table 11: Description of JLT622PWeb GUI Menu........................................................................................... 28
Table 12: Description of MR parameter........................................................................................................... 47
Table 13: Description of Neighbor Cell Parameter........................................................................................... 49
Table 14: Description of UTRA Frequency Parameter..................................................................................... 52
Table 15: Description of UTRA Neighbor Cell Parameter ................................................................................ 55
Table 16: Description of GERAN Frequency Parameter.................................................................................. 59
Table 17: Description of GERAN Neighbor Cell Parameter.............................................................................. 62
Table 18: Description of Log Setting................................................................................................................ 74

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2 Introduction
2.1 Overview
JLT622P is enterprise LTE small cell. LTE small cell is a wireless network system based on 3GPP LTE (Long
Term Evolution) technology; LTE small cell improves 3G technology’s shortcomings of relatively slow
transmission speed with high cost. This new generation wireless network system provides high speed data
throughput with relatively economic cost using the existing Internet line or low cost backhaul.
2.2 Type of Small Cell
LTE small cell has a core similarity with WiFi technology where both system provide wireless traffic in residentials
and hotspots as in Figure 1. Difference is that WiFi uses ISM band while LTE small cell uses commercial
frequency band operating within the commercial LTE network.
Generally, small cellcan easily be installed like WiFi AP while Picocell is recommended to be installed after cell
planning by wireless operators.
Figure 1: Types of Small Cell
2.3 Benefits
To satisfy the customer needs, LTE system must provide fast packet transmission with low cost to support high
speed multimedia data service.
With LTE small cell deployment, existing public Internet network can be shared wirelessly, thus it can offload the
data traffic as Wi-Fi does. It can also provide the coverage extension effect with providing LTE service inside the
buildings. The high efficiency with low cost makes the LTE small cell attractive to wireless operator to create new
business model. Therefore, it brings better service experience to their customers.
Figure 2: Benefits of Small Cell

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2.4 Network Block Diagram
LTE Enterprisesmall cell AP, JLT622P, provides wireless accessto LTE UE,and it is connected to MME (Mobility
Management Entity) for control plane signaling via S1-MME logical interface. For the user data service, JLT622P
is connected to S-GW (Serving-Gateway) via S1-U logical interface. Connection between EPC and LTE small
cells may go through HeNB-GW instead of directly getting connected to EPC.
S-GW is connected to P-GW (PDN-Gateway) for external network access including Internet service. JLT622P
supports IPSec with Security-GW when it is deployed in public network. It carries out either USIM-based or
Certificate-based authentication procedure for creating IPSec tunnel to Security-GW located in front of HeNB-
GW. Security-GW may co-locate with HeNB-GW.
In addition, it has been proved in the field to work seamlessly with our cutting-edge management system HeMS
and SON server for plug and play-based configuration including automatic parameter setting, alarm reporting,
statistics gathering and interference mitigation.
Figure 3: JLT622P and EPC Network Diagram

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3 Charactereristics
JLT622P has threeexternal ports: WAN, Bridge and Management ports. For time/frequency synchronization IEEE
1588v2, GPS and Air sync are provided.
3.1 JLT622P System Main Functions
3.1.1 3GPP Standards
JLT622P supports 3GPP Release 9 and complies with following specifications.
TS Number
Title
32.453
Telecommunication management; Performance Management (PM); Performance
measurements Home enhanced Node B (HeNB) Subsystem (HeMS).
32.425
Telecommunication management; Performance Management (PM); Performance
measurements Evolved Universal Terrestrial Radio Access Network (E-UTRAN)
32.592
Telecommunication management; Home enhanced Node B (HeNB) Operations,
Administration, Maintenance and Provisioning (OAM&P); Information model for
Type 1 interface HeNB to HeNB Management System (HeMS)
32.593
Telecommunication management; Home enhanced Node B (HeNB) Operations,
Administration, Maintenance and Provisioning (OAM&P); Procedure flows for Type
1 interface HeNB to HeNB Management System (HeMS)
32.594
Telecommunication management; Home enhanced Node B (HeNB) Operations,
Administration, Maintenance and Provisioning (OAM&P); XML definitions for Type
1 interface HeNB to HeNB Management System (HeMS)
32.541
Telecommunication management; Self-Organizing Networks (SON); Self-healing
concepts and requirements
36.104
Evolved Universal Terrestrial Radio Access (E-UTRA); Base Station (BS) radio
transmission and reception
36.211
Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and
modulation
36.212
Evolved Universal Terrestrial Radio Access (E-UTRA); Multiplexing and channel
coding
36.213
Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures
36.214
Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer;
Measurements
36.300
Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal
Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2
36.314
Evolved Universal Terrestrial Radio Access (E-UTRA); Layer 2 –Measurements
36.321
Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control
(MAC) protocol specification
36.322
Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Link Control (RLC)
protocol specification
36.323
Evolved Universal Terrestrial Radio Access (E-UTRA); Packet Data Convergence
Protocol (PDCP) specification
36.331
Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control
(RRC); Protocol specification

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36.412
Evolved Universal Terrestrial Radio Access Network (E-UTRAN); S1 signaling
transport
36.413
Evolved Universal Terrestrial Radio Access Network (E-UTRAN); S1 Application
Protocol (S1AP)
36.414
Evolved Universal Terrestrial Radio Access Network (E-UTRAN); S1data transport
36.422
Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 signaling
transport
36.423
Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 Application
Protocol (X2AP)
36.424
Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2data transport
29.281
General Packet Radio System (GPRS) Tunneling Protocol User Plane (GTPv1-U)
33.401
3GPP System Architecture Evolution (SAE); Security architecture
Table 1: 3GPP Release 9 Standard Specifications
3.1.2 JLT622P System Specifications
JLT622P system specifications are described in Table 2.
Item
System specifications
Remarks
Supporting standards
3GPP Release 9 specified in Table 1
Interface
S1-U/S1-MME/X2-CP/X2-U
Access type
Open/Closed
Synchronization
IEEE 1588v2, GPS, Air Sync
SON
REM, Automatic PCI/EARFCN/TAC allocation,
ANR
Under development
Data service
PS, SMS, MMS, Video call
Voice service
VoLTE, CSFB, Emergency calling
Handover
S1/X2 Handover
Redirection
To UTRAN and GERAN
Table 2: System Specification

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3.1.3 JLT622P Main Functions
Main functions provided by JLT622P are listed in the Table 3.
Category
Functions
Initial Access
Attach /Detach
Tracking Area Update
E-RAB
E-RAB Setup
E-RAB Release
E-RAB Modify
S1AP
S1AP- Reset
S1AP- Setup
S1AP- MME Configuration Update
S1AP- eNB Configuration Update
X2AP
X2AP –Reset
X2AP –Setup
X2AP –eNB Configuration Update
Broadcast Message
MIB
SIB1, SIB2, SIB3, SIB4, SIB5, SIB6, SIB7, SIB9, SIB10, SIB11, SIB12
PHY
DL/UL HARQ
2x2 MIMO
Scheduler
RR (Round-Robin)
PF (Proportional Fairness)
Supporting services
Data service
Voice service (VoLTE)
Video service
SMS, MMS
International roaming
PWS
CMAS, ETWS
Handover
S1 Handover
X2 Handover
2G/3G Interworking
CSFB w/o SI, Blind redirection
Neighbor Management
Manual Neighbor Management
ANR (Automatic Neighbor Relation) function based on UE’s measurement
report

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ANR function based on built-in REM function (under development)
Security
Small cell authentication function (USIM-based, Certificate-based)
Tunneling function to Security-GW (Se-GW)
Encryption between UE and small cell, message integrity function
SON
Plug and play, ANR, automatic PCI, EARFCN and TAC allocation (under
development)
Synchronization
IEEE 1588v2, GPS, Air Sync
Table 3: Main Functions
3.2 Equipment Specifications
Item
Specification
Remarks
Active Users
32 Users
Bandwidth
10/20 MHz
WAN
RJ-45, 100/1000 BASE-T
Bridge
RJ-45, 100/1000 BASE-T
MGMT
RJ-45, 100/1000 BASE-T
Local Management
Integrated LTE Antenna
7 dBi
Max.
PoE (PD)
IEEE 802.3at-2009
TBD
Power Consumption
18Watts (12V/1.5A)
Max.
Table 4: System Specifications
3.3 Environmental Specifications
Item
Specification
Remarks
Operating Temp.
-5 –40℃
23 –104F
Operating Humidity
5 –80%
Storage Temp.
-40 –70℃
-40 –158F
Storage Humidity
10 –95%
Table 5: Environmental Specifications

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3.4 AC/DC Adapter Specifications
Item
Specification
Remarks
Input Voltage Range
90 –264Vac
Rated Frequency
50 –60Hz
Input Current
1.5A
Max.
Input Leakage Current
3.5mA
Output Voltage Range
11.4 –12.6Vdc
Output Current
3.5A
Max. load
3.5 RF Specifications
3.5.1 Downlink transmission (for 20MHz BW)
Item
Specification
Remarks
Frequency Range
Band48
20 MHz Channel
Maximum Output Power
(Conducted)
Conducted Power (by Port)
19.28 dBm for QPSK
20.20 dBm for 16QAM
Conducted Power with
MIMO
22.28 dBm for QPSK
23.20 dBm for 16QAM
EVM
≤8%
64QAM
Transmitter OFF Power
≤-85 dBm
Total Power Dynamic Range
≥20.0 dB
20 MHz BW
Time Alignment Error
≤65 ns
RS Power
±2.1 dB
Occupied bandwidth
<18 MHz
20 MHz BW
ACLR
≤-45 dBc
Spurious Emission
Category A
Others
3GPP Standard
Table 6: RF Specifications for DL Transmissions

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3.5.2 Uplink Reception (for 20MHz BW)
Item
Specification
Remarks
Frequency Range
Band48
10/20 MHz BW
Reference Sensitivity
≤-96.5 dBm
Dynamic Range
≤-65.2 dBm
16QAM
In-Channel Selectivity
≤-93.5 dBm
QPSK
Adjacent Channel Selectivity
≤-90.5 dBm
QPSK
Blocking
≤-90.5 dBm
QPSK
Others
3GPP Standard
Table 7: RF Specifications for UL Receptions
3.5.3 Mechincial Specifications
Item
Specification
Remarks
Dimension
200(W) x 205(H) x 51(D)mm
Without bracket
7.9(W) x 8.1(H) x 2.0(D)in
Without bracket
Volume
2.09 Liter
Weight
< 900 Gram
With antenna, Without adapter and
bracket
< 2.0 lb
With antenna, Without
adapter and bracket
Material
PC+ABS
IP Grade
IP30
Cooling
Nature Convection
Table 8: Mechanical Specifications

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3.6 RF Block Description
JLT622P is based on LTE TDD technology consisting of downlink and uplink transmitted through the same
frequency. Explanation for each path is described below:
Figure 4: RF Block Diagram
A. Downlink (Tx)
RF signal from transceiver generates the maximum output when passing BALUN, Gain Block and PA.
This maximized output is transmitted via Antenna after out of band’s noise is removed via Filter and
then RF Switch.
B. Uplink (Rx)
The RF signal from Antenna passes through RF Switch after out of band’s noise is removed via Filter.
Original signal is amplified via LNA and provided to the transceiver.

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3.7 Digital block Description
JLT622P is equipped with 2 Giga Byte DDR3 SDRAM and CPU (Intel/T2200) operating at 1000MHz.
Figure 5: Digital Block Diagram
A. Modem Chip
Intel’s T2200 Wireless Base Station System on Chip (“Transcede 2200” or “T2200”) delivers the
required performance for next generation wireless networks such as Long-Term Evolution (LTE), in a
single System on Chip (SoC).
This SoC combines the latest Reduced Instruction Set Computer (RISC) processor technology with a
high-performance Digital Signal Processing (DSP) array supporting a simplified programming model.
The device offers hardware acceleration for application specific tasks, and a rich set of interfaces and
features, which allow the Transcede 2200 to provide a completely integrated solution covering the
needed processing capability from Internet Protocol (IP) (for example, S1) packets to IQ samples at
extremely low power.
B. IEEE 1588v2
IEEE 1588v2 is a standard for precision time synchronization in local area networks. It works using
exchange of special Precision Time Protocol (PTP) frames.
C. GPS
Provides timing synchronization using 1 pps signal received from GPS satellites.

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D. Ethernet
JLT622P has three external ports: WAN, Bridge and Management ports.
E. RF
This block communicates with the RF transceiver (AD9363) and the baseband chip (T2200) is
controlled by RF-SPI, and I/Q data is controlled by LVDS interface.
F. Power
The voltage range of power supplied by external source is 12V.It goes into power IC (DC/DC step
down converter and LDO etc.).
3.8 Software block Description
Figure 6: Software Block Diagram

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3.8.1 LTE protocol Stack
The LTE Protocol Stack is composed of LTE protocols defined in 3GPP Release 9.
▪PDCP (Packet Data Convergence Protocol)
Delivery and handling of user/control data including header compression and ciphering (defined in TS
36.323)
▪RLC (Radio Link Control)
Data delivery between MAC and PDCP including segmentation and ARQ (defined in TS 36.322)
▪MAC (Media Access Control)
Protocol mapping between transport channels and logical channels (defined in TS 36.321)
▪RRC (Radio Resource Control)
Protocol to handle control plane signaling (defined in TS 36.331)
▪S1AP (S1 Application Protocol)
Signaling protocol between HeNB and EPC (defined in TS 36.413)
▪X2AP (X2 Application Protocol)
Signaling protocol between HeNBs to handle UE mobility (defined in TS 36.423)
▪GTP (GPRS Tunneling Protocol)
Tunneling protocol for user plane (defined in TS 29.281)
▪SCTP (Stream Control Transmission Protocol)
Transport protocol for S1 and X2 control interfaces (defined in TS 36.412)
The LTE Protocol Stack also includes blocks to support following higher layer functions
▪RRM (Radio Resource Management)
Management and control of radio resources including admission control and packet scheduling
▪Mobility
Handling of mobility between cells with same or different frequencies through S1 and X2 links
▪QoS (Quality of Service)
Provides QoS functions according to bearer types and associated parameters
▪SON (Self Organizing Network)
Provides automatic configuration and parameter optimizations
▪REM (Radio Environment Monitoring)
Measurement to identify surrounding cells for SON and ANR
3.8.2 Security
Security Layer covers security functions to interface with external entities and protect small cells from various
security threats using built-in cryptographic functions.
▪Secure Boot
Performs device integrity checks upon booting to verify all HeNB components
▪Digital Certificates
Handles X.509 Certificates for HeNB security procedures
▪IKEv2(Internet Key Exchange Version 2)
Protocol between HeNB and Security Gateway to establish SAs (security associations)
▪TrE (Trusted Environment)
Trustworthy environment for the execution of sensitive functions and the storage of sensitive data
▪CMPv2 (Certificate Management Protocol Version 2)
Protocol for obtaining X.509 certificates through a PKI (Public Key Infrastructure)

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3.8.3 Management
Management Layer provides management capabilities for HeNB andinterfaces with upper layer managing entities.
▪TR-069
HTTP/SOAP based Management protocol between HeNB and HeMS
▪TR-196
Data model for provisioning of HeNB services
▪Fault Management
Provides standard interfaces to manage HeNB faults and alarms
▪Performance Management
Provides standard interfaces to manage HeNB performance data
▪Configuration Management
Provides standard interface for HeNB configuration and provisioning
▪Time Synchronization
Provides time synchronizing protocols (IEEE1588, NTP)
▪Logging
Provides logging capabilities through built in volatile and non-volatile storages.
▪Database
Maintains an internal database to manage configurations, statistics and status