A. Ascolese Telecom Italia Lab

Transcription

1 FSAN PON & wireless systems integration for broadband access network A. Ascolese Telecom Italia Lab antonio.ascolese tilab.com ECOC - Amsterdam 30 September 2001

2 Solutions to meet the increasing demand for broadband services! Use the existing copper POTS infrastructure e.g. ADSL?! Cable networks?! Optical fibre e.g. FSAN? 2 2

3 Two emerging tecnologies for broadband access network PONs (based on FSAN s specification) Broadband Access (BWA) systems CONNECT THE TWO! 3 3

4 FREEHANDS: Fibre and Radio Enhanced integration in Heterogeneous Access Networks for Delivery of broadband Services Project start: March 2000 Project end: October

5 Objectives! To study the problems related to the integration of wireless systems into an FSAN optical access network! To evaluate specific aspects related to wireless technologies, i.e. the support of and IP connections to deliver broadband services! To identify infrastructure solutions for broadband network cabinets! To identify means for evaluating the overall quality of the offered service 5 5

6 Project reports Service delivery on FSAN access platforms " service trials " long-term environmental testing " market analysis " fault diagnosis Broadband radio system " lab and field trials " protocol requirements for and IP connections " support to standard groups " dimensioning criteria Integration of radio system in the FSAN platform "requirements for integration " management and QoS issues " trial of FSAN-radio integration at Telecom Italia Lab 6 6

7 Requirements for integration (I) Protocol model for FSAN APON/Radio Service (e.g.ip) interconnection at the layer AAL(X) Service e.g IP Control Functions Convergence sublayer DLC SAP Control Functions Convergence sublayer Adaptation Adaptation LME LME DLC DLC PON Transmission PON PON Transmission PON User Equipment UNI TE AIR I/F BTS Reference Point R ONU IF PON OLT SNI 7 7

8 Requirements for integration (II) Protocol model for FSAN APON/Radio Service (e.g.ip) AAL(X) interconnection below the layer Control Functions Service e.g IP Control Functions LME LME Convergence sublayer DLC SAP DLC Convergence sublayer DLC PON Adaptation PON Transmission PON Adaptation PON Transmission PON User Equipment UNI TE AIR I/F BTS+ONU IF PON OLT SNI 8 8

9 Requirements for integration (III)! More efficient use of system capacity! NNI to NNI connection (12 bits for VPI field)! Better end-to end QoS management -> centralized provisioning and monitoring! Multicasting! Improvement of SLA definition 9 9

10 Management & QoS issues (I) Three management schemes! Management via OAM cells (performance monitoring, AIS and RDI reporting, loopback)! Management via a dedicated VP/VC! Management via external Q3 interfaces 10 10

11 Management & QoS issues (II) Classes of services Service Traffic Peak bandwidth Transmission Cell loss ratio type delay IP routing UBR 10 Mb/s 1.5 ms Cell discard on IP CBR/VBR/ < 150 Mb/s 1.5 ms < 10-5 SVC ABR VoD CBR 6 Mb/s 1.5 ms < 10-8 SwitchedDVB CBR 6 Mb/s 1.5 ms < 10-8 POTS/ CBR < 2 Mb/s 1.5 ms < 10-5 ISDN 11 11

12 Trial on FSAN/Radio Integration WORLD WIDE INTERNET PC -25 PC TORINO 2000 Proxy Switch TILAB LAN EM Interface OLT E1 ONT #1 PBX OFFICE LAN PC PC 10bT -25 HOME NETWORK C E PSTN STM1 ODN RTE #2 Ethernet hub PC ONT #2 VOD Server Site #2 RTE #2 2.3 Km -155 BTS BWA LAB A Site #3 RTE #3 2 Km ONT #3 RTE #

13 The TILAB trial: sites location 1 TILAB site #1 [OLT; ONT #1; ONT #2; ONT #3; BTS; RTE #1; RTE #4] TILAB site #2 [RTE #2] 3 TILAB site #3 [RTE #3] 2 Radio link Radio Sector Sector A TILAB site 13 13

14 Trial objectives! To check interoperability between BWA and PON system! To carry out performance tests (relevant to, for instance, throughput and delay) for different scenarios! To evaluate the working in field (radio system)! To study the behaviour on real applications through service trial 14 14

15 The TILAB trial: headquarter RBS Radio equipment RTE OLT ONT RTE ONT FSAN equipment 15 15

16 The trial: FSAN equipment Optical Line Termination (network side) Optical Network Unit (user side) 16 16

17 The trial: radio equipment Radio Base Station (network side) Radio Terminal (user side) 17 17

18 Performance Trial results! Satisfactory interoperability in terms of equipment visibility, VPCs and VCCs configuration, E1 and IP configuration! Joined management for the radio & PON system! Performance evaluated with the interconnected Radio+PON system are almost equal to those observed for the radio and PON stand-alone systems (except latency) 18 18

19 Service Trial! High speed Internet! Video streaming coded in MPEG-4 at 750, 1050 and 1800 kb/s over IP transmitted over. The IP UNI is configured for a 2 Mb/s of peak rate! Video conference (IP UNI configured for a 2 Mb/s of peak rate )! Connection with WLAN system (idem) NO RELEVANT DIFFERENCES IN PERFORMANCES 19 19

20 Conclusions! Good working of the tested integrated system Promising candidate for one of the final drop in an heterogeneous network Proposed improvements:! To increase radio channel capacity A! To make possible an efficient statistical multiplexing! To standardize air interface (radio side)! To realize commercial FSAN solutions with interfaces directly supporting radio functionality 20 20

21 FREEHANDS results! EURESCOM Workshop October 2001, Heidelberg, Germany FREEHANDS final results on FTP server (end of October) ftp.eurescom.de Contacts " Speaker: Antonio Ascolese " FREEHANDS Project Leader Valerio Palestini " EURESCOM Project Supervisor Adam Kapovits 21 21