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Determining the level of investment that operators need to make in backhaul
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Determining the level of investment that operators need to make in backhaul

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Vanesa TORNERO,

Vanesa TORNERO,
Project Manager, Mobile Backhaul
Berlin, November 5th, 2013
contributions: A.Mosek, B.Graves, C.Pepin, F. Le Clech , Y.DelaPorte

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    Determining the level of investment that operators need to make in backhaul Determining the level of investment that operators need to make in backhaul Presentation Transcript

    • Small Cells and Cellular Backhaul Forum Determining the level of investment that operators need to make in backhaul Vanesa TORNERO, Project Manager, Mobile Backhaul Berlin, November 5th, 2013 contributions: A.Mosek, B.Graves, C.Pepin, F. Le Clech , Y.DelaPorte France Telecom Orange Group in confidence
    • Overall business and network context A few hints on our transformation strategies Customer trends Business transformation stakes YtoY increase of data consumption in all network segments (Residential, Mobile, Enterprise) Acceleration of 4G Margins under pressure: bundled offers with lower ARPU Strong competition network transformation agility! approach, We need a global approach, leveraging on established enablers Technical Enablers Convergence towards a unified transport Fibre as the best VHBB network access media Backhaul engineering leverages on IP/MPLS Equipments host several functions New RAN specific solutions : Small Cells coverage capacity well! business transformation on the move, networks as well! Convergence is just a cost driven reality 2
    • Small cells overview A few hints on new RAN solutions definition Small Cells are defined as transmitters whose transmit power and coverage is smaller than a macro cell (max 10W) Small Cells are managed by the operator 3GPP small cells family 2G variety of strategies Macro Network Off-load categories of operator 3 3G LTE Indoor Coverage “Mobile” operator M: mobile R: residential E: entreprise W: wholesale “Convergent ” operator : M->M+R(E) Wi-Fi access points New Business Opportunities “Global operator M, R, E, W mix of uses cases!
    • Use case Starting point: from a 3G or 3G/LTE network Coverage RNC improve 3G SGSN GGSN PE PE S/P GW MME Congestion 3G + LTE Hybrid MW Fiber Macro BS (3G + LTE) MSAN P2P/ P2P/ xPON Macro BS (3G) CSG Congestion Access segment 4 Aggregation segment
    • Macro use case Strategy 1: go on with the existing model (macro deployment) RNC SGSN 3G PE PE 3G + LTE MSAN P2P/ P2P/xPON Access segment/First mile 5 new macros (carrier) new backhaul GGSN S/P GW MME Hybrid MW Fiber Macro BS (3G + LTE) Macro BS (3G) CSG Aggregation segment extra capacity in existing backhaul
    • Small cell use case Strategy 2: What happens if introducing small cells 3G Small cells gateway (optional) RNC SGSN 3G PE PE GGSN S/P GW MME Wifi Access Controller 3G + LTE LTE Small cells gateway (optional) MSAN P2P/ P2P/xPON Wifi GW Hybrid MW Fiber Access segment Aggregation + new very first mile WIFI Macro BS (3G + LTE) Macro BS (3G) segment Small cell 3G area new small cells ( how many?) new very first mile backhaul 6 new backhaul or extra capacity existing backhaul Small cell 3G/LTE controllers WI-FI AP Small cell
    • Small cell use case Convergence: equipments host several functions RNC SGSN GGSN PE PE Wifi Access Controller 3G/LTE SmC gateway (optional) S/P GW MME Wifi GW Sec GW MSAN P2P Hybrid MW Fiber Macro BS (3G + LTE) Small cell 3G/LTE/WIFI area 7 Combined RAN 3G/LTE/WIFI : All technologies all in one Think about convergence: controllers and security gateway
    • Analyzing strategies strategy 1 Deploy more macro cells Build macro/backhaul as usual or carrier deployment Take into account possible investments in aggregation segments, specially if microwaves are used. CAPEX new macros new backhaul I&C extra capacity in existing backhaul + equip OPEX + equip New small cells areas deployment New very last mile + additional capacity in aggregation segment strategy 2 deploy new small cells 8 new small cells ( how many?) new very last mile backhaul CAPEX shared backhaul extra capacity existing backhaul dedicated backhaul I&C +++ equip contro llers need to decrease plug & play OPEX +++ equip SON
    • How to connect small cells to the network? 1) Shared backhaul between macro + small cells NEW very last mile backhaul Small Cell site leverage at existing backhaul Macro Cell site MW link (sub 6GHz, 6-42 GHz, V-Band, E-Band) RNC, S/P-GW, MME, Wifi GW, HNB GW MW PE Fiber ptp PE Aggregation site Macro cell BS MW link (sub 6GHz, 6-42 GHz, V-Band, E-Band) ptp fiber Small cell BS New MW IDU/ODU Fiber ptp Existing MW IDU/ODU Existing CSG Macro Cell site FE or GE interface VERY LAST MILE LAST MILE fiber) new backhaul solution DEPLOYMENT in the very last mile (MW or fiber) existing backhaul UPGRADE solution for supporting small+macro cells 9 (Dimensioning: nb of ports for aggregation, backhaul link capacity, upgrade/swap of CSG or IDU/ODU MW?)
    • How to connect small cells to the network? 2) Dedicated backhaul for small cells (with or w/o aggregation) NEW very last mile backhaul NEW dedicated backhaul Small Cell site (PoC) (PoC) PoC (PoC PoC) Small Cell site (PoC) MW link Small Cell site RNC, S/PGW, MME, Wifi GW, HNB GW Aggregation Site GE ptp ptp fiber PE PE GPON Small cell BS MW link (sub 6GHz, 6-42 GHz, V-Band, E-Band) New MW IDU/ODU OLT or DSLAM ONT Livebox FE or GE interface GPON VERY LAST MILE LAST MILE MW link xDSL fiber) new backhaul solution DEPLOYMENT in the very last mile (MW or fiber) Aggregation of multiple small cells using small cell aggregator, MW IDU/ODU or CPE-M Possible merge between CPE-M and IDU/ODU MW 10
    • How to connect small cells to the network? 3) CRAN for small cells NEW very last mile backhaul Small Cell site MW link (V-Band, E-Band) leverage at existing backhaul Macro Cell site RNC, S/P-GW, MME, Wifi GW, HNB GW Aggregation site MW RRH PE PE ptp fiber RRH RRH RRH ptp fiber WDM BBU MW link (V-Band, E-Band) BBU BBU System module BBU BBU System module RRH RRH ptp fiber BBU BBU System module RRH RRH RRH RRH ptp fiber RRH RRH Small RRH BBU MW link (V-Band, E-Band) Macro RRH Small & Macro BBU Existing CSG WDM RRH Existing MW IDU/ODU New MW IDU/ODU RRH ptp fiber VERY LAST MILE RRH RRH RRH RRH FE or GE interface CPRI interface LAST MILE BBU Hostel at macro site requires fronthaul solution in very last mile (fiber, MW) BBU Hostel at central site requires fronthaul solution using passive WDM in last mile 11
    • Keys take aways New backhaul solution required in very last mile in any case Key challenges Backhaul shared with macro or dedicated in last mile Special attention regarding dimensioning => peak rate and statistical method when aggregation of small cells is done Combined RAN 3G/LTE/WIFI : All technologies all in one Convergence of 3G/LTE/WI-FI Small cells GW Trends Wifi GW mutualization with Residential (WI-FI Fixed archi) LTE: Security GW addressing LTE and WIFI sites New disruptive solution: CRAN (CPRI) supported Very last mile backhaul (either specific Mw or fiber connectivity) Investments operate: Easy to deploy & operate need to decrease I&C, plug & play Limit number of gateways 12
    • Thank you! contact: vanesa.tornerocaballero@orange.com France Telecom Orange Group in confidence 13