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Rafael Junquera
Rafael Junquera

1) The document discusses MEF's initiative on mobile backhaul and carrier ethernet technologies. It provides an overview of relevant MEF specifications such as MEF 6.1, 10.2, 22.1, and 23.1. 2) Key aspects covered include support for multi-class of service, packet synchronization over mobile backhaul, and using microwave technologies for carrier ethernet services. 3) The use of carrier ethernet for mobile backhaul is shown to support various mobile network architectures and migration use cases from 3G to 4G/LTE networks.

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Rami%Yaron% Mobile%Backhaul%Ambassador,%MEF% VP,%Technology%&%Business%Development% ryaron@DragonWaveInc.com% !
CE 2.0 Mobile Backhaul Initiative MEF 23.1, Multi-CoS Packet Sync Microwave MEF 22.1 Multi-CoS MEF 6.1 Best for CE over Technologies Positioning 10.2 Practices MBH for CE www.metroetherne+orum.org!for!details! !
MEF!6.x! MEF!10.x! MEF!13! MEF!23.1! MEFs own work as the foundation Other SDOs Industry trends TR.221 TDM to Packet MEF%22.1% 3G to 4GLTE Standardized! SynchronizaEon! Service! reference!! RecommendaEons! Requirements! points! (Service!Types,! CoS,!Eth!OAM,!etc)! !
Carrier%Ethernet%is%transport%technology%agnosJc%% –  being!designed!for!delivery!across!all!access!transports! RAN Base station RAN Base station PON Fiber RAN ONT Recent!!!! Base station Microwave Splitter EducaEonal!Paper! Direct Fiber Microwave Technologies Backhaul Service For Carrier Ethernet Ethernet over Bonded PDH Provider Services RAN (E1/DS1) Base station Published Fiber by MEF available for download RAN Network Controller RAN Base station !
Mobile Backhaul Migration Use Cases Packet%offload%over%Carrier%Ethernet%% RAN%dual%stack%–%Use%Case%2a% Use%Case%1a% Legacy% Legacy% Network ! Network ! Carrier% Carrier% Ethernet% Ethernet% Network ! Network ! RAN%BS! NonO GIWF! UNI ! UNI ! GIWF! NonO RAN%NC! RAN%BS! UNI ! UNI ! RAN%NC! Ethernet%I/F! Ethernet%I/F! EmulaJon%over%Carrier%Ethernet% Full%Ethernet%–%Use%Case%2b% Use%Case%1b% Carrier% Carrier%Ethernet% Ethernet% Network ! Network ! RAN%BS! UNI ! UNI ! RAN%NC! RAN%BS! NonO GIWF! UNI ! UNI ! GIWF! NonO RAN%NC! Ethernet%I/F! Ethernet%I/F! !
!
•  3G%Backhaul:%~%100km%(Metro)% Metro! Carrier Ethernet Network •  LTE%Backhaul%expanded%reach:% RNC –  BS%to%SOGW/MME%~1000km%(Regional)% –  BS%to%BS%~%neighbors%(10s%of%km)% S-GW Regional! MME S-GW EVC!for!X2! Carrier Ethernet Network MME EVC!for!S1! Interface! Interface! S1Oflex! S-GW MME Mobility!Management!EnEty! !
EVC!MEG! •  Subscriber%MEG%for%Mobile%Operator%(as%Customer/Subscriber)% •  EVC%MEG%(or%Operator%MEG)%for%MEN%Operator%(as%Service%Provider)% –  Fault!and!Performance!Management!to!report!EVC!Performance! •  UNI%MEG%used%to%monitor%MEF%compliant%UNI% –  eg.!RAN!CE!&!MEN!using!UNI!Type!2!with!Service!OAM!capability! !
•  Service%availability%depends%on%protecJon%of%both%UNI%and%EVC% •  Diversity%for%higher%Availability% –  UNI!Resiliency!(Link!AggregaEon)! –  MEN!Resiliency!Model!(MEN!Operator!implements!protecEon)! –  RAN!Resiliency!Model!(Mobile!Operator!implements!protecEon)! –  ParEal!vs!Full!Diversity!(some!or!no!shared!infrastructure)! •  Use%Cases% –  S1Oflex!in!LTE! –  Protect!synchronizaEon!! •  Group%Availability% –  Set!of!EVCs! •  Care%for:% –  Long!term!disrupEons! –  Short!term!loss!in!! signaling!can!bring!! down!a!cell!site!! !
•  MEF%Service%SpecificaJons%augment%industry%% Protection Examples standards%   1+1 APS (Active/Standby) •  Address%port%and%service%%   LAG (802.1AX) protecJon,%fault%detecJon%and%restoraJon%   Dual Homing –  At!the!UNI!ports!   Ring Protection (G.8032) –  At!the!ENNI!(for!direct!and!Exchange!connecEons)!   Linear Protection (G.8031) –  For!UNI!to!UNI!(EVCs)!   Spatial Diversity (Microwave) –  UNIOENNI!OVCs!   Frequency Diversity (Microwave) •  The%following%is%an%example%of%few%backhaul%resiliency%methods%% RAN BS Active/Standby on a Ring Protection Frequency Diversity Leased backhaul tier RAN NC EVC 1 (Primary Path) UNI UNI UNI UNI UNI UNI EVC 2 (Backup Path) !
One%Way%Performance%ObjecJves% Performance% CoS%Label%H% CoS%Label%M% CoS%Label%L% Applicability% A_ributes% Frame!Delay!(ms)! ≤ 10! ≤ 20! ≤ 37! At!least!one!of!either! FD!or!MFD!required!! MFD!(ms)! ≤ 7! ≤ 13! ≤ 28! InterOFrame!Delay! ≤ 8!or!N/S!! N/S! VariaEon!(ms)! ≤ 3! At!least!one!of!either! FDR!or!IFDV!required!! Frame!Delay!! ≤ 5! ≤ 10!or!N/S!! N/S! Range!(ms)! Frame!Loss!RaEo! ≤ .01%!i.e.!10O4! ≤ .01%!i.e.!10O4! ≤ .1%!i.e.!10O3! Reference:%MEF%23.1%Performance%Tier%1%(Metro)%%CoS%Performance%ObjecJves% !
•  The%following%shows%how%backhaul%services%can%be%integrated%between% mobile%operators%and%access%providers%even%when%the%services%offered%are% not%the%same:% Generic%Traffic%Classes%Mapping%to%CoS%Names CoS%Names 4!CoS!Names 3!CoS!Names 2!CoS!Names 2!CoS!Names Very!High!!(H+)! SynchronizaEon O O O High!!(H)! ConversaEonal,! SynchronizaEon,! SynchronizaEon,!! SynchronizaEon,! Signaling,!Network! ConversaEonal,!!! ConversaEonal,!! ConversaEonal,!! Management!and! Signaling,!Network! Signaling,!Network! Signaling,!Network! Control Management!and! Management! Management,! Control Control,!and! Control,!and! Streaming!media Streaming!media Medium!!(M)! Streaming!media Streaming!media O InteracEve!and!! Background Low!!(L)! InteracEve!and!! InteracEve!and!! InteracEve!and!! Background Background Background MEF!22.1:!Examples!of!MBH!Traffic!Classes!mapping!to!CoS!Names!in!a!Carrier!Ethernet!Backhaul!network! !
Frequency Synchronization TA=1/fA Mobile Network Frequency Time-of- A t Architecture Sync day / Phase TB=1/fB Sync B t CDMA2000  fA=fB GSM  Phase Synchronization UMTS-FDD TA=1/fA  LTE-FDD A t  UMTS-TDD TB=1/fB   B LTE-FDD with t advanced features   fA=fB LTE-TDD Time Synchronization   01:00:10 Mobile WiMAX 01:00:00 TA=1/fA   A t TD-SCDMA   TB=1/fB t B fA=fB 01:00:00 01:00:10 !
•  UNI%PHY% –  Synchronous!mode!of!operaEon!(Synchronous!Ethernet)! •  Locked!to!Ethernet!Equipment!Clock!(EEC)! •  Interoperable%operaJon%of%Synchronous%Ethernet% –  Synchronous!messages:!GeneraEon!&!processing!rules! –  Clock!Quality!Level!(QL)!indicaEon!&!processing!rules! –  DirecEon!of!clock!distribuEon:!MEN!to!Base!StaEon! •  RecommendaJon%to%support%QL%processing%% in%Base%StaJon% –  Failure!condiEons!&!Switchover!! to!alternate!Primary!reference! !
UNI •  Using!sync!embedded!in!the!data! Frame Arrival –  Sync/data!is!in!a!high!priority!EVC! EVC •  InterOarrival!rate!using!AdapEve!Clock!Recovery!(ACR)! •  Can!also!use!CES!RTP!opEonal!header!for!synchronizaEon!Emestamps! •  Using!a!sync!protocol!(e.g..!IEEE1588v2)! UNI Sync as a Class of –  Separate!EVCs! Service (EVC) •  Each!EVC!will!have!its!own!performance!! EVC (Data) –  Separate!Class!of!Service!within!the!same!EVC! •  Sync!is!marked!with!higher!CoS! EVC_(Sync) UNI Sync as a Class of Service (EVC+PCP) CoS (Data) EVC MO:!Mobile!Operator! PRC:!Primary!Reference!Clock! CoS (Sync) NE:!Network!Element! PCP:!Priority!Code!Point! PEC:!Packet!Equipment!Clock! !
Single Class vs. Multiple Classes (1) Many providers have taken first steps to Carrier Ethernet ─  But with simplistic, one Class of Service approach: simple but costly, and with QoS issues DelayOsensiEve! Bursty,!delay!&!loss! real!Eme!data! tolerant!data! Access% Mobile% Provider% Operator % An%Access%Provider%EVC% Result/Impact% • Needs%very%costly%overbuild% • Does%not%scale%O%recipe%for%going%out%of%business% • High%priority%traffic%subject%to%delay%–%especially% during%traffic%bursts%and%peaks% !
Single Class vs. Multiple Classes (2) MulJpleOClasses%of%Service:%more%complex%but%great%rewards% DelayOsensiEve! High%Priority%Lane% real!Eme!data! Low%Priority%Lane% Bursty,!delay!&!loss! tolerant!data! Mobile% Operator % An%Access%Provider%EVC% PrioriEzing!Data:!!1.!Network!control!2.!InteracEve!voice,!video,!3.!Signaling,!4!Internet!data,!business!data,!streamed!video! Result/Impact% Access%Providers% •  More!revenue!for!same!cost:!more!users,!more!responsive!QoS! •  Avoids!costly!overObuild! •  Maximize!profitability!–!leverage!Ethernet!packet!efficiency! Mobile%Operators% •  Enabled!Savings!in!a!mulEObillion!Industry!! •  Enables!resoluEon!of!most!criEcal!challenge:! “Handling)unprecedented)growth)of)data)while)preserving)or)improving)QoS.”)) !
•  Ethernet%%adopJon%accepted%by%vast%majority% •  MEF:%new%soluJons%for%opJmizaJon%of%MBH% –  Packet!&!networkObased!synchronizaEon! –  MEF!22.1:!MulEOCoS,!Service!mapping,!Link!&!Service! OAM,!Resiliency!performance! –  Supports!efficient!deployment!of!4G/LTE! –  Plus!2G,!3G!and!migraEon!use!cases! •  Impact%of%new%MEF%work% –  CapEx!savings,!PotenEal!OpEx!savings!for!Operators! –  Bejer!bandwidth!uElizaEon!and!service!quality!!! –  Sustainable!future!for!MBH! !

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Mef tw

  • 2. CE 2.0 Mobile Backhaul Initiative MEF 23.1, Multi-CoS Packet Sync Microwave MEF 22.1 Multi-CoS MEF 6.1 Best for CE over Technologies Positioning 10.2 Practices MBH for CE www.metroetherne+orum.org!for!details! !
  • 3. MEF!6.x! MEF!10.x! MEF!13! MEF!23.1! MEFs own work as the foundation Other SDOs Industry trends TR.221 TDM to Packet MEF%22.1% 3G to 4GLTE Standardized! SynchronizaEon! Service! reference!! RecommendaEons! Requirements! points! (Service!Types,! CoS,!Eth!OAM,!etc)! !
  • 4. Carrier%Ethernet%is%transport%technology%agnosJc%% –  being!designed!for!delivery!across!all!access!transports! RAN Base station RAN Base station PON Fiber RAN ONT Recent!!!! Base station Microwave Splitter EducaEonal!Paper! Direct Fiber Microwave Technologies Backhaul Service For Carrier Ethernet Ethernet over Bonded PDH Provider Services RAN (E1/DS1) Base station Published Fiber by MEF available for download RAN Network Controller RAN Base station !
  • 5. Mobile Backhaul Migration Use Cases Packet%offload%over%Carrier%Ethernet%% RAN%dual%stack%–%Use%Case%2a% Use%Case%1a% Legacy% Legacy% Network ! Network ! Carrier% Carrier% Ethernet% Ethernet% Network ! Network ! RAN%BS! NonO GIWF! UNI ! UNI ! GIWF! NonO RAN%NC! RAN%BS! UNI ! UNI ! RAN%NC! Ethernet%I/F! Ethernet%I/F! EmulaJon%over%Carrier%Ethernet% Full%Ethernet%–%Use%Case%2b% Use%Case%1b% Carrier% Carrier%Ethernet% Ethernet% Network ! Network ! RAN%BS! UNI ! UNI ! RAN%NC! RAN%BS! NonO GIWF! UNI ! UNI ! GIWF! NonO RAN%NC! Ethernet%I/F! Ethernet%I/F! !
  • 6. !
  • 7. •  3G%Backhaul:%~%100km%(Metro)% Metro! Carrier Ethernet Network •  LTE%Backhaul%expanded%reach:% RNC –  BS%to%SOGW/MME%~1000km%(Regional)% –  BS%to%BS%~%neighbors%(10s%of%km)% S-GW Regional! MME S-GW EVC!for!X2! Carrier Ethernet Network MME EVC!for!S1! Interface! Interface! S1Oflex! S-GW MME Mobility!Management!EnEty! !
  • 8. EVC!MEG! •  Subscriber%MEG%for%Mobile%Operator%(as%Customer/Subscriber)% •  EVC%MEG%(or%Operator%MEG)%for%MEN%Operator%(as%Service%Provider)% –  Fault!and!Performance!Management!to!report!EVC!Performance! •  UNI%MEG%used%to%monitor%MEF%compliant%UNI% –  eg.!RAN!CE!&!MEN!using!UNI!Type!2!with!Service!OAM!capability! !
  • 9. •  Service%availability%depends%on%protecJon%of%both%UNI%and%EVC% •  Diversity%for%higher%Availability% –  UNI!Resiliency!(Link!AggregaEon)! –  MEN!Resiliency!Model!(MEN!Operator!implements!protecEon)! –  RAN!Resiliency!Model!(Mobile!Operator!implements!protecEon)! –  ParEal!vs!Full!Diversity!(some!or!no!shared!infrastructure)! •  Use%Cases% –  S1Oflex!in!LTE! –  Protect!synchronizaEon!! •  Group%Availability% –  Set!of!EVCs! •  Care%for:% –  Long!term!disrupEons! –  Short!term!loss!in!! signaling!can!bring!! down!a!cell!site!! !
  • 10. •  MEF%Service%SpecificaJons%augment%industry%% Protection Examples standards%   1+1 APS (Active/Standby) •  Address%port%and%service%%   LAG (802.1AX) protecJon,%fault%detecJon%and%restoraJon%   Dual Homing –  At!the!UNI!ports!   Ring Protection (G.8032) –  At!the!ENNI!(for!direct!and!Exchange!connecEons)!   Linear Protection (G.8031) –  For!UNI!to!UNI!(EVCs)!   Spatial Diversity (Microwave) –  UNIOENNI!OVCs!   Frequency Diversity (Microwave) •  The%following%is%an%example%of%few%backhaul%resiliency%methods%% RAN BS Active/Standby on a Ring Protection Frequency Diversity Leased backhaul tier RAN NC EVC 1 (Primary Path) UNI UNI UNI UNI UNI UNI EVC 2 (Backup Path) !
  • 11. One%Way%Performance%ObjecJves% Performance% CoS%Label%H% CoS%Label%M% CoS%Label%L% Applicability% A_ributes% Frame!Delay!(ms)! ≤ 10! ≤ 20! ≤ 37! At!least!one!of!either! FD!or!MFD!required!! MFD!(ms)! ≤ 7! ≤ 13! ≤ 28! InterOFrame!Delay! ≤ 8!or!N/S!! N/S! VariaEon!(ms)! ≤ 3! At!least!one!of!either! FDR!or!IFDV!required!! Frame!Delay!! ≤ 5! ≤ 10!or!N/S!! N/S! Range!(ms)! Frame!Loss!RaEo! ≤ .01%!i.e.!10O4! ≤ .01%!i.e.!10O4! ≤ .1%!i.e.!10O3! Reference:%MEF%23.1%Performance%Tier%1%(Metro)%%CoS%Performance%ObjecJves% !
  • 12. •  The%following%shows%how%backhaul%services%can%be%integrated%between% mobile%operators%and%access%providers%even%when%the%services%offered%are% not%the%same:% Generic%Traffic%Classes%Mapping%to%CoS%Names CoS%Names 4!CoS!Names 3!CoS!Names 2!CoS!Names 2!CoS!Names Very!High!!(H+)! SynchronizaEon O O O High!!(H)! ConversaEonal,! SynchronizaEon,! SynchronizaEon,!! SynchronizaEon,! Signaling,!Network! ConversaEonal,!!! ConversaEonal,!! ConversaEonal,!! Management!and! Signaling,!Network! Signaling,!Network! Signaling,!Network! Control Management!and! Management! Management,! Control Control,!and! Control,!and! Streaming!media Streaming!media Medium!!(M)! Streaming!media Streaming!media O InteracEve!and!! Background Low!!(L)! InteracEve!and!! InteracEve!and!! InteracEve!and!! Background Background Background MEF!22.1:!Examples!of!MBH!Traffic!Classes!mapping!to!CoS!Names!in!a!Carrier!Ethernet!Backhaul!network! !
  • 13. Frequency Synchronization TA=1/fA Mobile Network Frequency Time-of- A t Architecture Sync day / Phase TB=1/fB Sync B t CDMA2000  fA=fB GSM  Phase Synchronization UMTS-FDD TA=1/fA  LTE-FDD A t  UMTS-TDD TB=1/fB   B LTE-FDD with t advanced features   fA=fB LTE-TDD Time Synchronization   01:00:10 Mobile WiMAX 01:00:00 TA=1/fA   A t TD-SCDMA   TB=1/fB t B fA=fB 01:00:00 01:00:10 !
  • 14. •  UNI%PHY% –  Synchronous!mode!of!operaEon!(Synchronous!Ethernet)! •  Locked!to!Ethernet!Equipment!Clock!(EEC)! •  Interoperable%operaJon%of%Synchronous%Ethernet% –  Synchronous!messages:!GeneraEon!&!processing!rules! –  Clock!Quality!Level!(QL)!indicaEon!&!processing!rules! –  DirecEon!of!clock!distribuEon:!MEN!to!Base!StaEon! •  RecommendaJon%to%support%QL%processing%% in%Base%StaJon% –  Failure!condiEons!&!Switchover!! to!alternate!Primary!reference! !
  • 15. UNI •  Using!sync!embedded!in!the!data! Frame Arrival –  Sync/data!is!in!a!high!priority!EVC! EVC •  InterOarrival!rate!using!AdapEve!Clock!Recovery!(ACR)! •  Can!also!use!CES!RTP!opEonal!header!for!synchronizaEon!Emestamps! •  Using!a!sync!protocol!(e.g..!IEEE1588v2)! UNI Sync as a Class of –  Separate!EVCs! Service (EVC) •  Each!EVC!will!have!its!own!performance!! EVC (Data) –  Separate!Class!of!Service!within!the!same!EVC! •  Sync!is!marked!with!higher!CoS! EVC_(Sync) UNI Sync as a Class of Service (EVC+PCP) CoS (Data) EVC MO:!Mobile!Operator! PRC:!Primary!Reference!Clock! CoS (Sync) NE:!Network!Element! PCP:!Priority!Code!Point! PEC:!Packet!Equipment!Clock! !
  • 16. Single Class vs. Multiple Classes (1) Many providers have taken first steps to Carrier Ethernet ─  But with simplistic, one Class of Service approach: simple but costly, and with QoS issues DelayOsensiEve! Bursty,!delay!&!loss! real!Eme!data! tolerant!data! Access% Mobile% Provider% Operator % An%Access%Provider%EVC% Result/Impact% • Needs%very%costly%overbuild% • Does%not%scale%O%recipe%for%going%out%of%business% • High%priority%traffic%subject%to%delay%–%especially% during%traffic%bursts%and%peaks% !
  • 17. Single Class vs. Multiple Classes (2) MulJpleOClasses%of%Service:%more%complex%but%great%rewards% DelayOsensiEve! High%Priority%Lane% real!Eme!data! Low%Priority%Lane% Bursty,!delay!&!loss! tolerant!data! Mobile% Operator % An%Access%Provider%EVC% PrioriEzing!Data:!!1.!Network!control!2.!InteracEve!voice,!video,!3.!Signaling,!4!Internet!data,!business!data,!streamed!video! Result/Impact% Access%Providers% •  More!revenue!for!same!cost:!more!users,!more!responsive!QoS! •  Avoids!costly!overObuild! •  Maximize!profitability!–!leverage!Ethernet!packet!efficiency! Mobile%Operators% •  Enabled!Savings!in!a!mulEObillion!Industry!! •  Enables!resoluEon!of!most!criEcal!challenge:! “Handling)unprecedented)growth)of)data)while)preserving)or)improving)QoS.”)) !
  • 18. •  Ethernet%%adopJon%accepted%by%vast%majority% •  MEF:%new%soluJons%for%opJmizaJon%of%MBH% –  Packet!&!networkObased!synchronizaEon! –  MEF!22.1:!MulEOCoS,!Service!mapping,!Link!&!Service! OAM,!Resiliency!performance! –  Supports!efficient!deployment!of!4G/LTE! –  Plus!2G,!3G!and!migraEon!use!cases! •  Impact%of%new%MEF%work% –  CapEx!savings,!PotenEal!OpEx!savings!for!Operators! –  Bejer!bandwidth!uElizaEon!and!service!quality!!! –  Sustainable!future!for!MBH! !