Anna Pizzinat ORANGE

  • 2,092 views
Uploaded on

FTTx Summit Europe 2012

FTTx Summit Europe 2012

More in: Business
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
No Downloads

Views

Total Views
2,092
On Slideshare
0
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
111
Comments
0
Likes
3

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. FTTx where x stays for Antenna: requirementson optical access/distribution network for newmobile backhaul architecturesAnna Pizzinat, Philippe Chanclou, Fabien Le Clech, Bernard LandousiesFrance Telecom – Orange Labs Networks and CarriersContact: anna.pizzinat@orange.comApril the 25th 2012,FTTx Summit Europe 2012, Chelsea Football Club, London France Telecom Group
  • 2. Contents FTTH deployments LTE is coming Can FTTH also Solve the Mobile Backhaul Problem? New mobile backhaul architectures based on an optical distribution network and enabling fixed/mobile mutualisation Conclusions2 Orange Labs R&D / A. Pizzinat FTTx Summit Europe 2012 France Telecom Group confidential
  • 3. FTTH deployment in France Mid 2011: 1.8 M «FTTH home passed» & 150000 FTTH «home connected » FTTLA :400K FTTH:150K3 Orange Labs R&D / A. Pizzinat – FTTx Summit Europe 2012 France Telecom Group confidential
  • 4. FTTH deployment in France: ORANGE plan until 2015 3600 towns 10M homes4 Orange Labs R&D / A. Pizzinat – FTTx Summit Europe 2012 France Telecom Group confidential
  • 5. Mobile networks: LTE (4G) is coming LTE promises significant performance improvements compared with earlier radio interfaces: – User available bit-rate ten times higher than 3G – Reduced latency, – Improved quality of service – Ability to operate with advanced antenna systems LTE subscriptions and forecasts (thousands) source Idate Dec. 2011 From 144k subscriptions in 2010, to 15M in 2011 to 458M in 2015.5 Orange Labs R&D / A. Pizzinat – FTTx Summit Europe 2012 France Telecom Group confidential
  • 6. ORANGE LTE deployment HSPA+ launch: – 2011: coverage 50% of French population for business use – April 2012: launch of commercial offer for privates and 60% coverage LTE France: – Marseille Orange City commercial launch by June 2012 – 4 more cities by end 2013 – The biggest French agglomerations (12) in 2013 And at the same time LTE is coming in Spain, Belgium, Luxembourg, Moldavia, ….6 Orange Labs R&D / A. Pizzinat – FTTx Summit Europe 2012 France Telecom Group confidential
  • 7. Can PONs also Solve the Mobile Backhaul Problem? Core RNC 2G Network ONT E1 BTS Central Office BSC aggregation CSG FE network (cell site EPC coupler gateway) GE nodeB OLT coupler enodeB In terms of supported data rate: User equipment Typical backhaul throughput Backhaul PON peak rate for one cell technologies compatibility3G DL 14.4Mbit/s ~20 Mbit/s Copper, fiber, GPONHSPA microwaveLTE DL 100Mbit/s 200 to 800 Mbit/s Fiber or XGPON UL 50Mbit/s depending on radio config. microwaveLTE-A DL 1Gbit/s 2 to 8 Gbit/s ? Fiber NGPON2? UL 500Mbit/s7 Orange Labs R&D / A. Pizzinat – FTTx Summit Europe 2012 France Telecom Group confidential
  • 8. Can PONs also Solve the Mobile Backhaul Problem? Probably yes, but besides throughput, LTE and LTE-A have other requirements as: – X2 interface delay between neighboring cells <5ms for LTE R11 – Coordinated Multi-Point (CoMP) inter cells – If the cell site is not secured, IPSec is needed. Is this the best backhaul solution? Keeping into account that – Typically, mobile network evolution and deployment are much faster than the fixed network ones – The market size is quite different (15000-20000 cell sites but several millions of potential FTTH customers in France) – Radio Access Network (RAN ) is changing day by day8 Orange Labs R&D / A. Pizzinat – FTTx Summit Europe 2012 France Telecom Group confidential
  • 9. Step 1: Macro base Step 2: Distributed base station with « traditional » station backhaul RRH RRH RRH ~15kg RRH coax D-RoF D-RoF RRU System module System module RRU BBU BBU RRU CSGRRU: Remote Radio Unit RRH close to the antennaRRH: Remote Radio head Energy savingsBBU: BaseBand Unit DeployedCSG: Cell-site Gateway But, if cell site is not securedD-RoF: Digital Radio over fiber(CPRI or OBSAI standard) (>50% cases) IPSec is needed adding OPEX and CAPEX9 Orange Labs R&D / A. Pizzinat – FTTx Summit Europe 2012 France Telecom Group confidential
  • 10. Step 3: BBU hostelling with stacking (or BBU centralisation) BBU colocalised in secured CO (no need for IPSec) X2 optimisation, Future proof with respect to LTE-A evolutions (CoMP support) Energy and deployment savings (expected 20%) Feasible today RRH RRH - RRH Central Office D-RoF IP/MPLS X2 module System optical BBU network RRH RRH distribution EPC module System RRH BBU network S1 module System BBU D-RoF MASG Fronthaul Backhaul10 Orange Labs R&D / A. Pizzinat – FTTx Summit Europe 2012 France Telecom Group confidential
  • 11. Step 4: C-RAN (or BBU hostelling with resource pooling) Same advantages as step 3, plus Less interfaces to core network (S1 and X2) Simplification of mobility management CAPEX savings due to reduced BBU number RRH RRH Trials ongoing RRH RRH RRH - RRH Central D-RoF Office IP/MPLS optical X2 balancing network System module Load BBU RRH RRH distribution S1 RRH network Fronthaul BackhaulRRH might be replaced by Active Antenna Arrays (AAA):new antennas with integrated RRH11 Orange Labs R&D / A. Pizzinat – FTTx Summit Europe 2012 France Telecom Group confidential
  • 12. Which optical distribution network for the fronthaul? Bit- Bit-rate requirements: requirements: – Radio signal digitisation: CPRI bit-rates are quite high compared to the real data rate available to the user, ex.: LTE 20MHz 2x2 MIMO → 2.457Gbit/s for each sector – Today radio configuration for LTE only: 3 RRHs with a total 3x2.457Gbit/s – Complete radio configuration for LTE-A + 3G+ 2G: up to 12 RRHs up to 20Gbit/s LTE- availability: Fibre availability: – Already a requirement for LTE backhaul → 90% Orange France cell sites in dense areas have fibre – Max fibre length for D-RoF: 40km D- → 96% Orange France links shorter than 10km In urban areas up to 28 cell sites are connected to one CO (based on existing topology)12 Orange Labs R&D / A. Pizzinat – FTTx Summit Europe 2012 France Telecom Group confidential
  • 13. Which optical distribution network for the fronthaul? N. fibers for Maturity/ Cost Comments cell site availability Point to point 1 for each Ok Not efficient usage of fibers RRH Point to point 1 every 2-3 RRH chain? More efficient usage of fibers with RRH RRHs but creation of single point of chaining failure on RRH chain Passive 1 or 2 Ok Colorized interfaces, CWDM 1λ/RRH, 16λ available Self seeded 1 Tests up to Colorless interfaces, 32λ WDM PON 2.5Gbit/s available. Promising but needs at least 2.5Gbit/s and standardization CPRI over 1 or 2 Ok High cost of active WDM OTN equipment CPRI compression is under study The last three solutions may be either on new infrastructure or existing PON ODN13 Orange Labs R&D / A. Pizzinat – FTTx Summit Europe 2012 France Telecom Group confidential
  • 14. Regulation aspects? In France incumbent wireline access operators must publish backhaul wholesale offers available to every mobile operators (to prevent incumbent operator to benefit from their position in wireless market). In France competitive wholesale offers suitable for the fronthaul segment do exist. Does this hold also for other countries?14 Orange Labs R&D / A. Pizzinat – FTTx Summit Europe 2012 France Telecom Group confidential
  • 15. An opportunity for fixed/mobile mutualisation point: Fixed and mobile fonctions in the same aggregation point: NGPoP This yields also to consolidation of central offices Different levels of convergence: – Location mutualisation – Fibre infrastructure mutualisation ? – Equipement mutualisationRRH RRH RRH NGPoP Point to point with WDM BBU card fixed/mobile IP/MPLS equipment network NG-PON2 NG- OLT card Via existing infrastructure15 Orange Labs R&D / A. Pizzinat – FTTx Summit Europe 2012 France Telecom Group confidential
  • 16. Conclusions – Take away Following RAN splitting, also mobile backhaul is evolving towards a new fronthaul segment plus a backhaul (aggregation) segment BBU hostelling (C-RAN) based on D-RoF is very promising for radio access network optimization A key aspect is the Optical Distribution Network in order to guarantee an efficient usage of fibers and minimize costs: – WDM PON For convergent and integrated operators this new mobile backhaul architecture opens to fixed/mobile mutualisation and is in the same direction of FTTH nodes consolidation16 Orange Labs R&D / A. Pizzinat – FTTx Summit Europe 2012 France Telecom Group confidential
  • 17. thank you Orange, the Orange mark and any other Orange product or service names referred to in this material are trade marks of Orange Personal Communications Services Limited. © Orange Personal Communications Services Limited. France Telecom Group restricted. France Telecom Group