Lawful Interception System Development For 4G Mobile Network
Lawful Interception System Development For 4G Mobile Network Decision Group Inc. 2020/15/09 1
Agenda
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 1 2 3 4 2
References
References Major LI References of Decision Group Inc. 01 AGENDA 3
Major LI References of Decision Group INC.
Major LI References of Decision Group INC . Since 2011, Decision Group (often referred to as D.G) has established many major references as follows. 4
COUNTRY YEAR PROJECT NAME 2013 Eritrea LI Eritrea 2013 Taiwan Intelligent Optic Fiber Taiwan 2012 Alexandria Target Inception Egypt 2011 ~ 2016 Eswatini Information Security Project 2014 Telefonic xDSL LI Argentina 2016 ~ 2018 Telefonic 3G/4G GTP LI Argentina 2016 ~ 2018 Tokushima Prefecture City Hall LI Japan 2016 ~ 2018 Taiwan Optical Platform LI Phrase 1~4 Taiwan e 2019 Chungwa Telecom 5G LI Taiwan 5
LI Architecture
LI Architecture Generalized View of LI architecture 02 AGENDA 6
Generalized View of LI architecture
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 7
LI Network
LI Network LI Network Scheme for 4G Network 03 AGENDA 8
LI Scheme for 4G Network (1/6)
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 9
LI Scheme for 4G Network (2/6)
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 10
LI Scheme for 4G Network (3/6)
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 11
LI Scheme for 4G Network (4/6)
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 12
LI Scheme for 4G Network (5/6)
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 13
LI Scheme for 4G Network – Voice CSFB 3G (6/6)
LI Scheme for 4G Network – Voice CSFB 3G (6/6) Voice 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 14
Services
Services Decision Group’s Services For LI Project 04 AGENDA 15
Decision Groups Services For LI Project
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 16
Thanks
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