FTTH Network Tendencies. Jürgen Seidenberg BKtel communications GmbH Germany
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1 FTTH Network Tendencies Jürgen Seidenberg BKtel communications GmbH Germany
2 Agenda Introduction Services Evolution FTTH network topologies FTTH installations NGN FTTH networks Anacom Workshop FTTH 2
3 Introduction Anacom Workshop FTTH 3
4 Telecom Outsite Plant Lifetime The Cabling Infrastructure is the mostly determining the CAPEX of a Telecom network In order to achieve a reasonable ROI a long lifetime of the Cable plant is mandatory Copper pair networks constructed to transmit 4 khz of voice signals about years ago today transport up to 100 Mbit/s (VDSL2) thanks to the consequent star topology (point-to-point network) CATV networks have been installed in many cases > 20 years ago to carry around 20 TV + 30 FM channels and carry today FM, hundreds of TV channels and Internet services. FTTH networks therefore should also be designed to last long, e.g. > 20 years Anacom Workshop FTTH 4
5 Main capital investment flows into last mile Prognosis on high speed access networks Wireless technologies not available for long distance / high speed DSL based technologies and also HFC will reach a throughput limit Expensive to refurbish last mile when the wrong choices were taken FttH or FttP are architectures of choice: Long term investment protection Largest bandwidth delivered Operational savings for large deployments Easy to upgrade for future bandwidth demands Anacom Workshop FTTH 5
6 Quality aspects in Telecom Networks Seen from the Network Operator / Service Provider: Investment Installation efforts Maintenance efforts Lifetime Seen from the customer: Good quality of all services Speed and Reliability of data service (Internet) Speech quality for voice services Picture quality, content, service availability for TV services Select appropriate technology ROI is the issue The customer ist the king Anacom Workshop FTTH 6
7 Service Evolution Anacom Workshop FTTH 7
8 Prediction How much Access Bandwidth is required? today What kind of network to be build with that view on future bandwidth demands? average for all Broadband Users with different kind of Data and Voice services as well as available VOD services. Valid independent on Access Technology. Anacom Workshop FTTH 8
9 Service Evolution Telephony Services will be transmitted in the future via VoIP Data services will continue to request higher datarate (Youtube...) Video services will continue to eat up the available datarate if IPTV is used without an additional RF video overlay: Full HDTV: 1920 x 1080 ~ 9 20 Mbit/s (MPEG4) Several streams of video (multiple displays + DVR) require many videostreams to be supported Special functions (e.g. DVR fast forward) require a multiple (3 ~ 5) of the standard datarate What s next? Anacom Workshop FTTH 9
10 Video Service Evolution on short term (5 ~ 10 years) Anacom Workshop FTTH 10
11 Video Service Evolution on long term (10 ~ 25 years) Only fiber will be able to support all future services Anacom Workshop FTTH 11
12 Evolution of Wired Access networks PSTN switched CATV: Voice ADSL: Traditional HFC or ADSL RF and digital TV + Fast Internet and Fast Internet and Voice, Video download Broadcast TV, Multimedia home, Video on Demand DS-Rate: typ M FTTH (P-P or PON) Text based Web surfing DS-Rate: typ. 1-16M DS-Rate: typ M VDSL or Cable Modem (Docsis3.0) Multichannel BC-TV, HDTV, Video on Demand, Voice, and and DS-Rate: typ k Dial up Modem /ISDN ADSL or Cable Modem (Docsis ) Fiber deep HFC or VDSL FTTH yesterday today Anacom Workshop FTTH 12
13 FTTH Network Topologies Anacom Workshop FTTH 13
14 PON: pure IP Triple Play network Backbone-Router Optical Line Termination (OLT) 1GbE PC VoIP TV IP - network PON 1550 & 1310 nm PC VoIP TV Point to multipoint network (1:16 1:64) PC VoIP TV Anacom Workshop FTTH 14
15 Standards for PON: GE-PON IEEE 802.3ah (EFM): GE-PON 1490nm / 1310 nm bidirectional optical GE-PON 1 Gbit/s for 32 subscribers Provisioning TR069 or other standards Telephony SIP 2.0 or other standards Anacom Workshop FTTH 15
16 Standards for PON: G-PON ITU-T G.984: G-PON 1490nm / 1310 nm bidirectional optical G-PON, 2.4 Gbit/s for 32 (64) subscribers Provisioning TR069 or other standards Telephony SIP 2.0 or other standards Anacom Workshop FTTH 16
17 Data, telephony, radio + TV services: Quality factors of the pure IP PON seen from the Network Operator Pros: Fiber network with just one fiber per PON (16 64 subscribers) leaving the CO; saves space and equipment in the CO Cons: Outdoor-location for passive optical splitter reduced granularity Shared medium requires encryption and protection measures Radio + TV services: Pros: Triply-play via pure IP-Network Cons: IPTV headend or feeder required IP backbone needs to be able to provide sufficient data rate capacity Anacom Workshop FTTH 17
18 Data and telephony services: Pros: Good speech quality High speed data service available Quality factors of the pure IP PON seen from subscriber Cons: Individual requests on the different performance of the service hardly be fulfilled since PON is a shared medium Radio + TV services: Pros: pure IP inhouse network, no coaxial cable network required Cons: reduced comfort compared to direct satellite or CATV service IPTV set-top box required for each subscriber radio/tv/vcr limited zapping performance IP-Radio instead of SAT-Radio or FM-Radio TV service with a significant delay (e.g Seconds) Anacom Workshop FTTH 18
19 PON + RF Video Overlay Backbone-Router PON Optical Line Termination (OLT) 1GbE PC VoIP TV IP - network CATV & PON 1550 & 1310/1490nm RF Video Overlay OLT PC VoIP TV CATV Point to multipoint network PC VoIP TV Anacom Workshop FTTH 19
20 Standards for PON: GE-PON + RF Video Overlay IEEE 802.3ah (EFM): GE-PON 1490nm / 1310 nm bidirectional optical GE-PON 1 Gbit/s for 32 subscribers IEC for the RF video overlay (optional) FTTH RF Video Overlay (in preparation) Provisioning TR069 or other standards Telephony SIP 2.0 or other standards Anacom Workshop FTTH 20
21 Standards for PON: G-PON + RF Video Overlay ITU-T G.984: G-PON 1490nm / 1310 nm bidirectional optical G-PON, 2.4 Gbit/s for 32 (64) subscribers IEC for the RF video overlay (optional) FTTH RF Video Overlay (in preparation) Provisioning TR069 or other standards Telephony SIP 2.0 or other standards Anacom Workshop FTTH 21
22 Data, telephony, Radio + TV Services: Quality factors of the IP PON + RF video overlay seen from the Network Operator Pros: Fiber network with just one fiber per PON (16 64 subscribers) leaving the CO; saves space and equipment in the CO Cons: Outdoor-location for passive optical splitter reduced granularity (16, 32, 64) Shared medium requires encryption and protection measures Radio + TV services: Pros: low cost RF Video Overlay System instead of state of the art IPTV System Anacom Workshop FTTH 22
23 Quality factors of the IP PON + RF Video overlay seen from the subscriber Data and Telephony Services: Pros: Good speech quality High speed data service available Cons: Individual requests on the different performance of the service hardly be fulfilled since PON is a shared medium Radio + TV Services: Pros: no IP set-top box for analog TV required FM Radio Huge number of channels for several TVs, DVRs, immediate response to zapping request undelayed reception of the content Cons: inhouse IP-network + coax-network required Anacom Workshop FTTH 23
24 Point to Point Network with RF Video Overlay (single fiber) IP - Network Optical Line Termination (OLT) Access Switch Backbone Router 1GbE 100Mbps Optical Ethernet 1490nm / 1310nm RF Video 1550nm PC VoIP TV WDM PC VoIP TV RF Video Overlay OLT CATV WDM WDM WDM WDM Point to Point Network WDM Anacom Workshop FTTH 24 PC VoIP TV
25 Point to Point Network + RF-Overlay (dual fiber) Access Router Ethernet Switch 1GbE 100Mbps Ethernet 1310 / 1550nm PC VoIP TV IP PC VoIP TV CATV CATV 1550nm Optical Tansmitter 1550nm +EDFA Optical Splitter PC VoIP TV Anacom Workshop FTTH 25
26 Standards for Ethernet PtP IEEE 802.3ah (EFM): Ethernet PTP (FE und GE) 100Base-BX10: 1550nm (1480nm-1580nm)/1310 nm bidirectional optical Fast Ethernet 1000Base-BX10: 1490nm (1480nm-1500nm) /1310nm bidirectional optical Gigabit Ethernet IEC FTTH RF Video Overlay (in preparation) Provisioning DOCSIS-based (standard used for Cable modem) TR069 based (standard used for DSL modem) Telephony SIP 2.0 Anacom Workshop FTTH 26
27 Quality factors of the Point to Point + RF video overlay seen from the Network Operator Data and telephony services: Pros: Cons: Each subscriber receives his own fiber Very different data rates ( 100 Mb/s 10 Gb/s) feasible Large optical budget compared to PON Good protection against vandalism and signal tapping No outdoor location required Increased amount of fibers in OLT ( n fibers for subsribers) and consequently more equipment Radio + TV services: Pros: low cost RF Video Overlay System instead of state of the art IPTV System No nonlinear optical crosstalk between IP => RF video as occurring in PON Better TV picture quality for analog TV compared to PON + RF Video Overlay System Anacom Workshop FTTH 27
28 Data and telephony services: Pros: Good speech quality High speed data service available Quality factors of the Point to Point + RF video overlay seen from the subscriber Radio + TV services: Pros: no IP set-top box for analog TV required FM Radio Huge number of channels for several TVs, DVRs, immediate response to zapping request undelayed reception of the content Cons: inhouse IP-network + coax-network required Anacom Workshop FTTH 28
29 FTTH Installations Anacom Workshop FTTH 29
30 Network Upgrade in Basel/CH Upgrade for residential area to future safe FTTH network The challenge: Upgrade from old cable infrastructure to a future proof network (limited installation space ) CATV + DVB-C and additional several hundred SAT-IF channels with DVB-S Analogue TV set shall still work without any STB How to safe the invest of the network and to be able to expand to very high data services like 100bT or GB-Ethernet? Anacom Workshop FTTH 30
31 Network Upgrade in Basel/CH Upgrade for residential area to future safe FTTH network The Solution: Build an FTTH network with 2/4 single mode fibers P-P to each home using same duct as before coaxial branch installation One fiber is served with the a high performance optical 1550nm TX for CATV + SAT-IF ( MHz) boosted with an EDFA The 2nd fiber will be used for Ethernet based data traffic. Anacom Workshop FTTH 31
32 Headend Schematics for SAT-IF signals Transportation of the vertical and horizontal high band transponder signals on one fiber / coax cable TWIN LNB Vert. H Out Horiz. H Horizontal Vertical 10,6Ghz Oscil. Horizontal H 11,7 High Band H 11,7 11,837 12,266 Mixer High Band V 10,6Ghz Oscil. Vertical H 12,480 12,75 12,670 Mixer 12,75 Astro SEV Horizontal / Vertical: Will be selected by the SEV V (13 V)High (22 khz) H (18 V)High (22 khz) OUTPUT 1,1GHz 1,66GHz 1,88GHz 2,07GHz SAT-ZF Anacom Workshop FTTH 32
33 Photo of SAT-IF headend Anacom Workshop FTTH 33
34 The Realisation : 600 Digital TV + 40 Analogue TV Satellite Dishes The Service The Optical Receiver Satellite Head-End Mhz Mhz Optical Transmission and fiber distributon Splicing in the Basement (using existing ducts of coaxial cable) Anacom Workshop FTTH 34
35 CPE in living room Anacom Workshop FTTH 35
36 Example of CPE Managed Switch based FTTH-CPE 100Base-BX WAN Interface Integrated 10/100Mbit/s Ethernet Switch Virtual LAN (VLAN) Quality of Service / Class of Service IGMP Snooping Bandwidth Control SNMP Agent (optional) Ultra Low Noise Cable TV Receiver Diagnostics (optional) Anacom Workshop FTTH 36
37 FTTH RF-Video Overlay Project Telekom Slovenije Country wide FTTH Project: RF-Video Overlay Ethernet IP, P-P Services: RF-CATV: FM + 80x analogue TV channels Up to 100bit/s Ethernet access per customer (bidirectional) VoIP over SIP or MGCP IP-TV Total Number of Hubs: 74 Number of connected subscribers for phase 1: users 2 fiber to each CPE at customer premises 1st fiber: RF on 1550nm (CATV part from BKtel) 2nd fiber: 1310/1490nm bi-directional Ethernet (IP part from Iskratel) Central Head End in Ljubljana - longest link about 280km Anacom Workshop FTTH 37
38 Network layout FTTH project Telekom Slowenije Anacom Workshop FTTH 38
39 RF video overlay network Telekom Slowenije: max. 266 km Anacom Workshop FTTH 39
40 119,25 133,25 154,25 189,25 210,25 231,25 252,25 273,25 294,25 319,25 343,25 367,25 383,25 415,25 471,25 495,25 519,25 543,25 567,25 591,25 639,25 663,25 695,25 719,25 743,25 767,25 791,25 119,25 140,25 161,25 196,25 217,25 238,25 259,25 280,25 303,25 327,25 351,25 375,25 399,25 431,25 487,25 511,25 535,25 559,25 583,25 631,25 655,25 679,25 711,25 735,25 759,25 783,25 RF video overlay performance after 226 km Telekom Slowenije Headend measurements (before optics) 5th April SNR Head End SNR BOR RF output (after 226km) SNR Performance in Murska Sobota ( after a distance of 226km from Head End) 55,0 54,0 53,0 52,0 51,0 50,0 49,0 48,0 47,0 46,0 45,0 Reihe1 Anacom Workshop FTTH 40
41 Head End Slovenje Head End Ljubljana (Centre) for countrywide distribution of CATV signals 4 x exmod TX and Distribution 16 x 20EDFAs Booster YEDFA for 4000 local connected customers
42 ca fibers/ ETSI Rack Central Office for PtP Distribution Slowenje
43 Central Office for PtP Distribution (2) Slowenije Hub Murska Sobota CATV Distribution Hub Bezigrad 16 x 20dBm Booster EDFA connects to 1536 Customers 1x64 Splitters
44 City Telekom (HK) Ltd./ Hongkong Broadband Newtwork Ltd. Company Overview Presented on FTTH Council USA, Nashville, Sept 2008 by CTI / HKBN Anacom Workshop FTTH 44
45 Offered Data Services City Telekom (HK) Ltd./ Hongkong Broadband Network Ltd. Presented on FTTH Council USA, Nashville, Sept 2008 by CTI / HKBN Anacom Workshop FTTH 45
46 City Telekom (HK) Ltd./ Hongkong Broadband Newtwork Ltd. Network Topology Presented on FTTH Council USA, Nashville, Sept 2008 by CTI / HKBN Anacom Workshop FTTH 46
47 Fiber optic backbone network City Telekom (HK) Ltd./ Hongkong Broadband Network Ltd. Presented on FTTH Council USA, Nashville, Sept 2008 by CTI / HKBN Anacom Workshop FTTH 47
48 Inhouse Wiring for Small Buildings City Telekom (HK) Ltd./ Hongkong Broadband Network Ltd. Presented on FTTH Council USA, Nashville, Sept 2008 by CTI / HKBN Anacom Workshop FTTH 48
49 Inhouse Wiring for Large Buildings City Telekom (HK) Ltd./ Hongkong Broadband Network Ltd. Presented on FTTH Council USA, Nashville, Sept 2008 by CTI / HKBN Anacom Workshop FTTH 49
50 State of the art Fiber Installation in Buildings Presented on FTTH Council USA, Nashville, Sept 2008 by OFS Anacom Workshop FTTH 50
51 Inhouse Wiring for Large Buildings Low Bending Loss Fiber Standards for Installations in Buildings Presented on FTTH Council USA, Nashville, Sept 2008 by OFS Anacom Workshop FTTH 51
52 NGN FTTH Networks Anacom Workshop FTTH 52
53 NGN FTTH networks PON: 10 Gbit/s GPON (shared between subscribers) 10 Gbit/s GEPON (shared between subscribers) WDM PON (logical point to point links, each subscribers has different wavelength) Point to point networks: 1 Gbit/s to each subscriber (already available) 10 Gbit/s to dedicated subscribers (already available) Anacom Workshop FTTH 53
54 FTTH network future strategy The most future proof solution: FTTH network with 2/4 single mode fibers in point-to-point topology IP + RF Video Overlay technology for unmatched service performance Anacom Workshop FTTH 54
55 Thank you for your attention! Further Infos under or send to Anacom Workshop FTTH 55
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