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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