LOS, nLOS & NLOS: All-In-One Small Cell Backhaul For Cost-Effective Delivery of SLAs
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Transcript of LOS, nLOS & NLOS: All-In-One Small Cell Backhaul For Cost-Effective Delivery of SLAs
LOS, nLOS & NLOS: All-‐In-‐One Small Cell Backhaul For Cost-‐Effec>ve Delivery of SLAs
Simon Clement, Virgin Media Lance Hiley, Fastback Networks
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Agenda
Virgin Media Simon Clement, Senior Technologist, Advanced Technology & Innova7on
• Virgin Media in the mobile sector • Small Cells as a Service • Small Cell Backhaul Trial Scope • Small Cell Vendor Trials and
Results
Fastback Networks Lance Hiley, Director European Business Development
• Small Cell Backhaul usage scenarios • Line of Sight vs. Non-‐Line of Sight
performance • Intelligent Backhaul Radio • Conclusions
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Advanced Technology Trials Simon Clement June 2014 Version 1.0
Virgin Media in the Mobile Sector
broadband tv phone mobile
MVNO 3 million mobile customers
16% of customers now quad play
Wholesale Sync E mobile backhaul Supporting all the UK
MNOs.
Introduction
VM Status – Small Cells as a Service
MNO(s)
1Gb/s in City
1Gb/s Tail
Aggregation
Synchronised Ethernet
Hosting
MNO A radio
Shared mesh radio links Shared fibre tail
MNO B radio
MNO provided radios for access and/or meshing
" Single 1G backhaul product
" High Cost base / Opex
" Bespoke
" Fragmented proposition
Now
" Portfolio of 3G and 4G low cost backhaul products
" Low Opex and cost base
" Simple turnkey national proposition
Objective
The
Proposition
Wireless Concessions Rank City Population Awarded to 1 London 7,200,000 O2 (x2)
Arqiva (x4) Virgin Media Business (Hackney)
2 Birmingham 992,000 Virgin Media Business 3 Leeds 720,000 Virgin Media Business 4 Glasgow 560,000 BT 5 Sheffield 512,000 - 6 Bradford 467,000 Virgin Media Business 7 Edinburgh 450,000 - 8 Liverpool 440,000 BT? (not announced) 9 Manchester 420,000 Arqiva 10 Bristol 380,000 -
Establishing a growing portfolio of City concessions •Leeds and Bradford (our first concession win at the end of 2012) • Birmingham (probably the single biggest UK concession) • Hackney / Tech City • Others currently in procurement
Concessions
Wireless Backhaul
Small Cell Target
Location
NLoS Location
Virgin Media 1Gbps Fibre
Wireless Backhaul Vendor Trials - LEEDS, UK
V320 60Ghz
Point 2 Point 170Mhz Width
QPSK 320Mbps
Sub10 2013
StreetNode 32Ghz
Point 2 MultiPoint 28Mhz
QAM64-512 Up to 120Mbps
Intracom 2013
IBR 5Ghz
Point 2 Point 35Mhz QAM64
275Mbps
Fastback 2014
Etherhaul
60Ghz Point 2 Point
500Mhz QAM64
500Mbps
Siklu 2014
Wireless Backhaul
Line of Sight solutions LOS & NLOS solution
Wireless Backhaul
Challanges
Results
Throughput –All OK Latency – All OK Availability – All OK MTBF – All OK Jitter – All OK Ranges from 150 – 500Mbps dependent on vendor
Performance
SLA Targets - Wide range of alignment types Manual vs Auto vs Any Bracket types effect install times. DC vs AC.
Installation
Time/Complexity
Some Management Systems more developed than others. Power cycling/ reliability requires subcontractor on short SLAs
Operations
Issues Wireless Backhaul
Enhanced TPut Power
Higher frequency attenuated by rainfall/humidity. Not sufficient to effect PHY rate 60 GHz impacted by street works in line of sight (Christmas lights)
Environmental
Weather
Visual Obstruction
Detailed results and analysis of all trials are available by contacting
Virgin Media Business.
The following slides look at the Fastback Networks trial in more detail.
Thank You!
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• Leeds City Centre: – Serve major commuter
routes and community spaces
• Three Links -‐ Three Scenarios:
– nLOS shot (first Fresnel-‐zone building obstruc>on
– LOS shot (with traffic interference)
– NLOS (urban canyon fully-‐obstructed)
Fastback IBR Small Cell Backhaul Usage Scenarios Real World Deployment Demonstrates AnyLoS Benefits
Fibre PoP
Near-‐LOS (225m)
LOS (220m)
Non-‐LOS (300m)
nLOS Shot (long perspecFve)
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Target is here
Banner masts and Museum par>ally-‐obstructs Line of
Sight
Connec>on to site 225m away
nLOS Shot (closer perspecFve)
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Target is here Banner masts and Museum obstructs
Line of Sight
nLOS Shot (even closer) Urban Street-‐Level Backhaul
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• Most LOS millimeter and microwave backhaul solu>ons cannot make this shot or require installa>on aids
• Fastback achieved maximum performance: >500Mbps and latency <500μsec
Here’s the Target!
Quick, easy deployment without installa>on aids
LOS shot
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Target is here (same pole as previous)
Banner masts and traffic creates minor
obstruc>ons
Connec>on to site 220m away
View from opposite end
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Target is here
LOS Shot (closer perspecFve)
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Target is here Poten>al interference and
par>al obstruc>ons from banners and
traffic.
• LOS millimeter and microwave backhaul solu>ons can make this shot with careful planning; street-‐level foliage and obstruc>ons can change over >me
• Fastback achieved maximum performance: >500Mbps, Latency: <500μsec
Year-‐round performance without special link planning
NLOS Shot
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Target is here
Museum obstructs Line of Sight
Only ‘route’ is via narrow street Total route length
≈ 300m
Fibre PoP here
NLOS Shot (Long perspecFve)
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Target is behind here
Museum obstructs Line of Sight
Only ‘route’ is via narrow street
NLOS shot (Closer perspecFve)
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We asked contractor to aim radio at this point
Museum obstructs Line of Sight
Only ‘route’ is via narrow street, tree foliage obstruc>on
NLOS (Looking from the other direcFon)
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This is the building we aimed at
This is the narrow street
Total route length ≈ 300m
• LOS millimeter and microwave backhaul solu>ons cannot make this shot using one link
• Fastback achieved >185 Mbps throughput, Latency: <500μsec
Deliver fibre-‐like performance around the corner
• Highest capacity in AnyLOS™: up to 500Mbps • Lowest latency: ‹500µsec • Carrier-‐Grade transport SLA’s anywhere
– Carrier Ethernet (CE) 2.0 over wireless – QoS, 1588v2, SyncE – GbE or SFP configura>ons
• PtP and M-‐PtP support • FCC and ETSI compliance • Maximum use of 5GHz unlicensed spectrum
– Extreme Interference Protec>on (XIP™) – Agile Radar Avoidance Technology
Fastback Networks: Intelligent Backhaul Radio Integrated Switch & Radio Purpose Built for the Small Cell Backhaul
Fastback IBR AnyLoS radio system
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• The Fastback IBR uses MIMO for maximum throughput performance
• Transmit and receive antennas leverage polariza>on, spa>al and angular diversity maximising link robustness
• FDD radio enables simultaneous TX & RX and monitor channel for fast interference/radar event mi>ga>on
• The result is an AnyLoS radio system that works with direct, refracted and reflected radio signals
Typical IBR results
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• Fastback IBR delivers high throughput across a wide range of scenarios and degrees of obstruc>on
• Capacity rarely drops below 200Mbps – even in urban, high-‐obstruc>on situa>ons
• Latency is typical <500μsec • Rain has negligible effect • Long LOS distances can be
achieved in rural, urban mul>-‐story and over water scenarios
100#
200#
300#
400#
500#
600#
50# 500# 5000#
Throughp
ut)(a
ggregate))
Range)(metres))
Performance)rela6ve)to)degree)of)obstruc6on)(Bubble)size)relates)to)degree)of)obstruc6on)=)larger)is)
greater))
Lite)Urban)Industrial)NLOS) Lite)Urban)Industrial)nLOS) Over)Water)LOS)
Rural)LOS) Urban)Mul6story)nLOS) Urban)Mul6story)NLOS)
Urban)Mul6story)nLOS) Urban)Canyon)nLOS)
Conclusions
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• Fastback IBR radio and antenna design enables AnyLoS capability from a single radio product
• NLOS performance rarely dropped below 200Mbps capacity and latency is typical <500μsec – even in high obstruc>on scenarios
• Fastback met small cell backhaul trial SLA’s in all weather condi>ons (rain, wind)
• Only solu7on that provided LOS and NLOS: reduces installa7on complexity and number of links