Review of the Activities in ITU-T T SG Study Period

Transcription

1 International Telecommunication Union Review of the Activities in T SG Study Period Darren Carpenter TTC Workshop, 17 October 2008

2 SG5 Overview of Scope & Structure 2

3 Overview Study Group 5 (SG5) Protection Against Electromagnetic Environment Effects Working Party 1 (WP1) Safety & Damage Prevention Deals with lightning protection Working Party 2 (WP2) Electromagnetic Fields Emissions, Immunity & Human Exposure Deals with EMC Responsible for Maintenance & Publication of the K-Series of Recommendations Series K: Protection against Interference 3

4 Study Period Working Party 1 (WP1) Safety & Damage Prevention 7 Questions assigned Working Party 2 (WP2) Electromagnetic Fields Emissions, Immunity & Human Exposure 8 Questions assigned 4

5 WP2 Questions Study Period Questions Continuing from Study Period: Q1/5 - Co-location, unbundling and interoperability in telecommunications networks Q2/5 - EMC related to broadband access networks Q3/5 - Radio-frequency environmental characterization and health effects related to mobile equipment and radio systems Q7/5 - EMC prediction through mathematical modelling Q12/5 - Maintenance and enhancement of existing EMC recommendations New Questions for the Study Period: Q8/15 - Home Networks Q15/5 - Security of telecommunication and information systems regarding electromagnetic environment Q16/5 - EMC requirements for the Information Society 5

6 The Impact of Convergence Since the 1940 s, have had three global standardisation bodies: ISO mechanical; IEC electrical (then electronic); ITU telecommunications. Currently, the world is undergoing rapid technological convergence More electronic devices have a telecoms interface Refrigerators with internet access!?! Hence the traditional boundaries between ISO/IEC/ITU are rapidly blurring This increases the need for liaison between the three standardisation bodies Reduces duplication of effort (DO NOT REINVENT WHEEL) Prevents competition between standards bodies Prevents generation of standards with different technical requirements 6

7 Liaisons Q3/5 with WHO EMF Project; with IEC TC106 developing mobile handset human exposure measurement methods Q8/5 & Q12/5 with IEC TC77 WG13 responsible for revising the IEC s definition of the EM Environment with IEC CISPR/I responsible for the new multimedia Product Standards CISPR32 & CISPR 35 Q15/5 with IEC TC77 SC77C High Power Transient Phenomena 7

8 Q8/5: Home Networks 8

9 Why are Home Networks of Interest? Telecoms companies have invested heavily in broadband services to the customers premises Data Rates support simultaneous delivery of several services But these services consumed at different points within the home/office Have to be distributed within the customers premises via Home Networks 9

10 Home Networks: Specific Challenges Home Networks set up by the customer; Designed for delivery of best effort data services for access, web browsing Quality of Service (QoS) not normally an issue for such services Key to telecoms services 10

11 The Quad-Play Aspiration Quad-Play involves the simultaneous delivery of: Voice services POTS Data services access, internet browsing etc Video services Video-on-Demand Fixed Wireless Convergence services BT Fusion via single broadband connection New revenue opportunities 11

12 Quad-Play Challenges Quad Play means: Simultaneous use of multiple services at many points within the home Home Networking becomes an issue Electromagnetic Interference within the Home is a challenge potential show-stopper 12

13 In-Home Distribution: Options & Consequences of Interference Voice Services: Corded/cordless telephony products common no problem Data Services: Many wireline/wireless options interference not generally noticed (corrupted data packets resent), other than as reduced data rate On-line, interactive gaming an exception Growing market: Sony TM Playstation 3 TM, Microsoft TM Xbox TM Live TM, Nintendo TM Wii TM Video Services: streaming interference immediately visible to the user as break-down of image/audio quality Particular problem for premium-rate High Definition (HD) content 13

14 The Customer Experience 14

15 Recent Experience New menagerie of in-home conducted noise phenomena REIN Repetitive Electrical Impulse Noise PEIN Prolonged Electrical Impulse Noise SHINE Single High Intensity Noise Event 15

16 Q8/5 Work Plan Study Period Three new K-Series Recommendations Planned: K.henv - Conducted and Radiated Electromagnetic Environment in Home Network; K.nnm - Network Noise Models due to Home Networking; K.hnw - EMC, Resistibility and Safety Requirements and Procedures for Home Networks. 16

17 Q8/5 Deliverables Study Period K.henv - Conducted and Radiated Electromagnetic Environment in Home Network Liaising with IEC TC77 WG13 during revision of IEC TR K.nnm - Network Noise Models due to Home Networking Studying properties of the new impulsive noise phenomena Liaising with SG15 K.hnw - EMC, Resistibility and Safety Requirements and Procedures for Home Networks Became published K.74 17

18 Q12/5: Maintenance and enhancement of existing EMC recommendations 18

19 Immunity Requirements to Mobile Phone Interference - Early 1980 s - Anecdotal evidence of mobile phone use disrupting network equipment - Ban introduced within exchange equipment rooms - Early 2000 s - Aspiration to deploy wireless data services within exchange equipment rooms - Need to guarantee equipment function - UK study - Extensive interference - High Field Strengths 19

20 A Generic Problem - Mass-Adoption of mobile communications services means: - Many active handsets (100 s millions) - Clustering in public areas - Many handsets active simultaneously - Public expectation that devices may be used anywhere - Few exceptions - E.g. hospitals, aircraft, petrol stations - But people still use their handsets there 20

21 A Generic Solution? Handsets may be used very close to any electrical/electronic devices telecommunications not unusual Hence field levels under study for telecommunications equipment may be equally applicable to all devices 21

22 Q15/5: Electromagnetic Security 22

23 Q15/5 Background - I SG17 produced X Information Security Management System Requirements for Telecommunications (ISMS-T) Main body defines the ISMS Annex A supplies telecoms-specific requirements Includes: A site whose environment is least susceptible to damage from strong electromagnetic field shall be selected for communication centers. If necessary, less than satisfactory site may be selected provided appropriate measures are taken to protect telecommunications equipment rooms with electromagnetic shields, etc. 23

24 Q15/5 Background II X1051 does not provide/reference any technical definitions or any means that allow the user to meet these requirements SG5 was contacted to provide a documentation set This became Q15/5 Electromagnetic Security 24

25 Q15/5 Scope Intentional EM interference (deliberate EM attack) via High Altitude Electromagnetic Pulse (HEMP); High Power Electromagnetic (HPEM); Unintentional EM interference Electromagnetic Compatibility (EMC) Natural EM threats Lightning, ESD Demands expertise from both WP1 & WP2 EMC WP2 Lightning WP1 Managed under WP2 25

26 Q15/5 Work Plan Study Period Ksec shall form the basic reference for X.1051, referencing out to: Existing WP2 Recommendations for EMC Existing WP1 Recommendations for Protection New Recommendation Khemp Reference documents of IEC TC77 SC77C New Recommendation Khpem Reference documents of IEC TC77 SC77C New Recommendation Kleakage To be based on Information Security Technology (IST) Study Group of Japan All documents shall reference Ksecmiti Security Mitigation that defines mitigation methods 26

27 Q15/5 Deliverables 27

28 Liaison with IEC TC77 SC77C High Power Transient Phenomena Q15/5 will make use of documents published by IEC TC77 SC77C To avoid duplication of effort During work, would like to share our experience with applying the documentation set Provide user feedback Maintain awareness of current work within IEC TC77 SC77C 28

29 Thank You 29