IEEE COMSOC PANELLTE BACKHAUL CHALLENGES,SMALL CELLS AND THECRITICAL ROLE OFMICROWAVEPAUL KENNARD, CTO | AVIAT NETWORKS   ...
LTE                                            (Lon	                                      	          g Ter                ...
?
LESSONS LEARNED #1CONSTRUCTION (not capacity) is key LTE challenge
LTE CAPACITY REQUIREMENTS                                                 Theore&cal	  Single	  User	  Data	  Rate	  	    ...
AND PROPER PLANNING EASES RING CAPACITY DEMANDS                       50Mbps           	           	     50Mbps           ...
Capacity 1 Gbit/s400 Mbit/s                                            Cell-Site Capacity100 Mbit/s                       ...
BECAUSE MICROWAVE HAS EVOLVED…Strategy                       Technique1.  More Spectrum              •  Multiple channels ...
LESSONS LEARNED #2MICROWAVE MEETS LTECAPACITY NEEDSeven for large rings and multi-cellsite links
FUTURE OF LTE BACKHAUL IS:                                        Small Cells!!!11   AVIAT NETWORKS |   FEBRUARY 2012
HOWEVER, SMALL CELLS WILL CHANGE THE BACKHAUL PARADIGM…                                 1.  More sites                    ...
Wired	                              Wireless	  	                            Wireless	  	                                  ...
LESSONS LEARNED 3SMALL CELL NOT SIGNIFICANT MARKETuntil backhaul gets cheaper and easier
WHICH MEANSFUNDAMENTAL INNOVATIONS WILL BE REQUIRED INFOUNDATIONAL MICROWAVE TECHNOLOGY…all in one tiny box... including a...
OTHER NEW APPROACHES WILL NEED TO BE CONSIDERED                   CACHING               DISTRIBUTED INTELLIGENCE16   AVIAT...
and Microwave Networking solutions will emerge                                                        Security	           ...
TO ACHIEVE ALL THIS, WE NEED TO PAYATTENTION TO WHAT’S IMPORTANT…        AMC	  Pacer	  –	  voted	  worst	  car	  of	  all	...
THANK YOUAVIAT NETWORKS |2019 AUGUST 2010
LTE Backhaul Challenges, Small Cells and the Critical Role of Microwave
Upcoming SlideShare
Loading in...5
×

LTE Backhaul Challenges, Small Cells and the Critical Role of Microwave

2,800

Published on

Aviat Networks's chief technology officer
(CTO), Paul Kennard, offers a presentation to IEEE's Communications Society on the critical role microwave networking will play in the deployment of Small Cell backhaul to service the throughput needs of LTE 4G mobile telecommunications providers.

Published in: Technology
0 Comments
5 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
2,800
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
143
Comments
0
Likes
5
Embeds 0
No embeds

No notes for slide

LTE Backhaul Challenges, Small Cells and the Critical Role of Microwave

  1. 1. IEEE COMSOC PANELLTE BACKHAUL CHALLENGES,SMALL CELLS AND THECRITICAL ROLE OFMICROWAVEPAUL KENNARD, CTO | AVIAT NETWORKS 1
  2. 2. LTE (Lon g Ter m Ev oluti 4G on) 10x f aster QoS, than 3G Low All-I laten P cy Low Cost 3 AVIAT NETWORKS |
  3. 3. ?
  4. 4. LESSONS LEARNED #1CONSTRUCTION (not capacity) is key LTE challenge
  5. 5. LTE CAPACITY REQUIREMENTS Theore&cal  Single  User  Data  Rate     Down/Up  [Mbps]     Close   Medium   Far   10MHz   43  /  14.4   28  /  9.5   14  /  4.8   real scenario is 100-150mbps backhaul per 3 sector cellsite6 AVIAT NETWORKS | 20 AUGUST 2010
  6. 6. AND PROPER PLANNING EASES RING CAPACITY DEMANDS 50Mbps     50Mbps Ring Capacity 300Mbps Gateway Node     100Mbps 50Mbps 50Mbps 50Mbps     50Mbps typical overbooking factor for mobile operator = ~3x ring capacity ~100mbps in this case7 AVIAT NETWORKS | 20 AUGUST 2010
  7. 7. Capacity 1 Gbit/s400 Mbit/s Cell-Site Capacity100 Mbit/s Time Zone of Capacity Growth Maximum Cell-site Capacity LTE cannot outstrip microwave capacity to cellsite
  8. 8. BECAUSE MICROWAVE HAS EVOLVED…Strategy Technique1.  More Spectrum •  Multiple channels with link aggregation (More Hz) (incl CCDP) – leverage N+0 •  ACM2.  More Spectral Efficiency •  Higher modulations (512/1024 QAM, ACM) (More Bits per Hz) •  FEC redundancy3.  More “Effective” •  Header optimization / suppression Throughput •  Payload compression (More Data per Bit) •  Asymmetrical RF and is a high capacity transport solution
  9. 9. LESSONS LEARNED #2MICROWAVE MEETS LTECAPACITY NEEDSeven for large rings and multi-cellsite links
  10. 10. FUTURE OF LTE BACKHAUL IS: Small Cells!!!11 AVIAT NETWORKS | FEBRUARY 2012
  11. 11. HOWEVER, SMALL CELLS WILL CHANGE THE BACKHAUL PARADIGM… 1.  More sites higher cost, more complexity 2.  Different sites new technologies and construction challenges will get far worse12 AVIAT NETWORKS |
  12. 12. Wired   Wireless     Wireless     (fiber/cable/dsl)   (LOS)   (NLOS)   200+Mbps  (shared,  may  Capacity   10Gbps   1-­‐2Gbps   be  ok  for  HSPA)  Site  LocaLon  /   Not  available,  costly   LOS   Flexible.  NLOS  RestricLons   install   Parabolic   Depends  on  frequency.     Limited  for  pt-­‐mpt.      Backhaul  Distance   Long  distance  but  costly   Millimeter  wave  limited   Pt-­‐pt  ok  Latency   us   us   5-­‐10ms  (ok  for  HSPA)  CAPEX   Very  high   High  (today)   Low  OPEX   Low   Medium   Medium   Costly.  Unlicensed  Spectrum   N/A   Available   opLons  very  risky  meaning… none of today’s backhaul solutions will suffice
  13. 13. LESSONS LEARNED 3SMALL CELL NOT SIGNIFICANT MARKETuntil backhaul gets cheaper and easier
  14. 14. WHICH MEANSFUNDAMENTAL INNOVATIONS WILL BE REQUIRED INFOUNDATIONAL MICROWAVE TECHNOLOGY…all in one tiny box... including antenna!15 AVIAT NETWORKS | FEBRUARY 2012
  15. 15. OTHER NEW APPROACHES WILL NEED TO BE CONSIDERED CACHING DISTRIBUTED INTELLIGENCE16 AVIAT NETWORKS | 20 AUGUST 2010
  16. 16. and Microwave Networking solutions will emerge Security   Redundancy  and   SynchronizaLon   ProtecLon   ACM,  RF   RouLng   opLmizaLons   Integrated,  IP   Others  (DPI,   QoS,  Bandwidth   management   Microwave   caching,  CDN,   Pla[orm   etc)  17 AVIAT NETWORKS | Microwave Dumb Pipe
  17. 17. TO ACHIEVE ALL THIS, WE NEED TO PAYATTENTION TO WHAT’S IMPORTANT… AMC  Pacer  –  voted  worst  car  of  all  Lme!  
  18. 18. THANK YOUAVIAT NETWORKS |2019 AUGUST 2010
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×