This document provides an overview of Decision Group Inc.'s lawful interception (LI) system development services for 4G mobile networks. It discusses major LI references, an overview of the generalized LI architecture based on ETSI standards, and an LI network scheme for 4G networks. The scheme shows how intercept related information (IRI) and content of communication (CC) is provisioned from the MME, HSS, P-GW, S-GW and delivered to the LI gateway and law enforcement monitoring center. It also describes Decision Group's LI project services, which include system design, installation, integration, training and data delivery to customer loggers.
2. Agenda
Major LI References of Decision Group Inc.
Generalized View of LI architecture
LI Network Scheme for 4G Network
Decision Group's Services for LI Project
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4. Major LI References of
Decision Group INC.
Since 2011, Decision Group
(often referred to as D.G) has
established many major
references as follows.
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5. COUNTRYYEAR PROJECT NAME
2013 Eritrea LIEritrea
2013
Taiwan Intelligent Optic
FiberTaiwan
2012
Alexandria Target
InceptionEgypt
2011 ~ 2016 Eswatini
Information Security
Project
2014 Telefonic xDSL LIArgentina
2016 ~ 2018
Telefonic 3G/4G GTP
LIArgentina
2016 ~ 2018
Tokushima Prefecture
City Hall LIJapan
2016 ~ 2018
Taiwan Optical Platform LI
Phrase 1~4Taiwan e
2019
Chungwa Telecom 5G
LITaiwan
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7. Generalized View of LI architecture
NWO / AP / SvP¡¯s domain
NWO/AP/SvP¡¯s
Administration function
IRI mediation
function
CC mediation
function
Network
Internal
Functions
IIF
INI
Intercept related
information(IRI)
Content of
communication(C
C)
LI handover interface HI
LEA
domain
HI1
HI2
HI3
IIF : Internal interception function
INI : Internal network interface
HI1 : administrative information
HI2 : intercept related information
HI3 : content of communication
The European
Telecommunications
Standards Institute (ETSI) is
an independent, not-for-
profit, standardization
organization in
the telecommunications industry
(equipment makers and network
operators) in Europe
LEMF
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9. LI Scheme for 4G Network (1/6)
LI Gateway
Data Provisioning
? IRI - Intercept Related
Information
? CC - Content of Communication
IRI & CC Delivery
LI Command
LEA Monitor Center
DRMS
EDDM
iMonitor
User
Input warrant order
Data Archiving
Data Analysis
Check out records
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10. LI Scheme for 4G Network (2/6)
IRI Provisioning
? Provision from
? MME
? HSS
IRI & CC Delivery
LI Command
LEA Monitor Center
Data Provisioning
HI1
HI2 & HI3
DRMS
EDDM
iMonitor
User
Input warrant order
Data Analysis
Check out records
LI Gateway
Data Archiving
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11. LI Scheme for 4G Network (3/6)
IRI Provisioning from MME
IRI & CC Delivery
LI Command
LEA Monitor Center
DRMS
EDDM
iMonitor
User
Input warrant order
Data Analysis
Check out records
HI1
HI2 & HI3
X
1
X
2
MME
? Internal Interface X
? X1 - Activate, manage and terminate interception
? X2 - Transport IRI from the point of interception to
the MF
LI Gateway
Data Archiving
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12. LI Scheme for 4G Network (4/6)
CC Provisioning
Data Provisioning
? Provision from
? P-GW
? S-GW
LI Gateway
X
3
IRI & CC Delivery
LI Command
LEA Monitor Center
DRMS
EDDM
iMonitor
Input warrant order
Data Archiving
Data Analysis
Check out records
HI1
HI2 & HI3
User
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13. LEA Monitor Center
LI Scheme for 4G Network (5/6)
Intercept ID : 63330
Packet Encapsulation
IRI & CC Delivery
LI Command
DRMS
EDDM
iMonitor
User
Input warrant order
Data Archiving
Data Analysis
Check out records
HI1
HI2 & HI3
X
1
x3
PDN-GW
duplicate
U
E
Other Party
? Internal Interface X
? X1 - Activate, manage and terminate interception
? X3 - Transport to the MF
User
LI Gateway
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14. LI Scheme for 4G Network ¨C Voice CSFB 3G (6/6)
iMediator
Voice Recorder iMonitor #1 EDDM DRMS & Storage
.
.
.
User
HI1 HI2
Front-End
Back-End
Media Gateway
X2
? E1 SS7 ISUP
? E1 ISDN PRI
CC - HI3
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16. Decision Groups Services For LI Project
? Project Plan and System Design
? Project Scope and System Capacity
Evaluation
? Network Architecture and System Availiability
? Hardware Preparation and Software
Customization
? Server and Network Equipement Installation
? User Interface and Daily Maintenance
Customization
? System Integration and Regulation
? Interworking with Telecom Network
? Data Collection and Transfer to Customer
Logger
? Technology Transfer, Training Materials and
Training Courses
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17. CREDITS: This presentation template was created by ºÝºÝߣsgo, including
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Do you have any questions?
decision@decision.com.tw
+886 02 2766 5753
http:www.edecision4u.com/index.html
Thanks
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