Slide 1 Point to Multi-Point microwave backhaul in Next Generation mobile backhaul networks TNMO...

Slide 1

Point to Multi-Point microwave backhaul in Next Generation mobile backhaul networksTNMO London

May 2010

Slide 2In ConfidenceCambridge Broadband Networks Ltd.

The Company

Headquarters in Cambridge UK

Market-driven, world class technology

Research and product design in Cambridge

Manufacture by Benchmark

Largest carrier-class PMP vendor, four-fold increase in sales 2007 to 2009

More than 50 customers in 35 countries

First Backhaul vendor sponsor to join NGMN Alliance


Agenda

Evaluating last-mile backhaul alternatives for European Operators

What are the cost implications

PMP Backhaul

Considerations for next generation networks

Conclusions


Speed is key: Covera

ge ubiquit

ous

Unlimited Data Plans

New app’s fuelled by multiple open

operating systems Smartphone

ownership

growing rapidly

Backhaul Crunch

The backhaul crunch

Next Generation Mobile Broadband networks also need to make money


2010: 4.6 Billion Mobile Subscribers

2015: 7 Billion Mobile Subscribers

2020: 50 Billion mobile connections

The wall of mobile data

•Smartphones and Dongles are just the beginning

•Machine-to-machine communications will change dynamics of mobile

Source: Nokia


Key Factors in Backhaul Deployment

• Equipment plus Installation must meet market targets

• Equipment needs to provide services in a few hour, not weeks or months – with minimal planning and licensing

• Drive down ever increasing antenna lease and spectrum costs along with radio equipment site costs

• Must be enough for Backhaul Requirements of today and tomorrow – with an established capacity roadmap

System Capacity

System Operationa

l Cost

System Capital

Cost

Speed to Deploy


WHAT ARE THE OPTIONS?Evaluating last mile backhaul for European Operators


Last Mile Backhaul Options

Western European Operators – Grading Of Principle Backhaul OptionsGrading 1-5 where 1 is very poor and 5 is excellent

Source: Informa Telecoms & Media


Cost comparison: various backhaul technologies

•Forecast cost to transport data traffic: as traffic increases, the need to build or upgrade backhaul increases

•Voice traffic is assumed to be carried on E1•Cost increases towards the end of the forecast period due to volume of traffic•Deployed Fibre is second most expensive but is a long term option for some operators•Microwave technologies are the most cost efficient



l


A balanced backhaul solution

PMP has the lowest microwave OPEX

PMP has the lowest CAPEX

Informa Telecoms and Media: “Last Mile Backhaul Options for West European Mobile Operators”


WHAT ARE THE COST IMPLICATIONS?

Evaluating last mile backhaul for European Operators


Mobile operators want backhaul solutions

that cost less,

deliver higher performance

and reduce the complexity of

their networks


Cost comparison: Tier-1 UK Operator

The analysis presented has been undertaken for an international Tier-1 operator running a mobile broadband network in the UK. Calculations are for a 5-year period.

• Cost savings of PMP compared with TDM/fibre leasing for the total cost to transfer traffic amounts to US$497 million per year during 2010, increasing to US$2.8 billion per year for 2014

• PMP is expected to offer cost savings of US$26 million during 2010 and this will increase to US$248 million during 2014 compared to PTP microwave.


• Cost comparison (Europe) between PMP and the other two prominent technologies, PTP and hybrid fibre (leasing)

• Although both leasing fibre and hybrid backhaul technologies are considered cost-efficient, analysis shows that PMP can provide better cost savings in backhaul, even compared to the widely established PTP microwave in Western Europe.


IS THERE A ANOTHER WAY?PMP Microwave Backhaul


Point-to-MultiPointPoint-to-point

PMP Microwave Architecture

PMP uses 1 frequency per sector. To backhaul 9 cell sites, VectaStar uses 8 fewer radios:10 vs. 18

Access point

PtP uses 1 frequency, 2 radios and requires 2 installations per

link

Single Hop = predictable latency


Step 2: Zero footprint sector

Backhaul on Demand

GE

GE

GE

GE

Outdoor

Indoor

GE

GE

Step 1: Single PtP link

PMP system architecture enables a paradigm shift in microwave backhaul network design

Site a PMP Ethernet Hub where there is a need to

provide or upgrade backhaul coverage

GE

GE

GE

GE

Step 3: Multi-sector Gigabit

Ethernet Hub

Add sectors as demand increases

Hub economics enable variable sector sizes/capacities

Radio Controller available to aggregate multiple sectors and provide hybrid support

New sites require one radio – deployment time halved


150MbpsSectorth’put

Stat-Mux and Aggregation

Point-to-Point backhaul planners have to provision for peaks, i.e. 30Mb/s per NodeB:

120Mbps

VectaStar aggregates cellsite traffic in sector

Built-in optimisation and statistical multiplexing reduces peak backhaul

requirement to 40 Mbps

Total provisioning: 4 x 30Mbps = 120 MbpsPTP: Bandwidth not used is wasted!

30Mbps

30Mbps

30Mbps

30Mbps

Traffic measurements from 4 HSPA Node Bs in a

VectaStar network sector

40Mbps

Vectastar: Unused bandwidth is available for other cellsites in the sector

40Mbps


Case Study: LTE Network London

LTE PMP Backhaul solution for London:• 145 Cell sites• 8 Hub sites• 150Mb/s Peak• 30Mb/s Mean

Utilises overlapping sectors to increase capacity in dense, high traffic areas

Comparison showed that at 100Mbps, PtP exhausts available spectrum.VectaStar used less than half the spectrum needed for PtP


VectaStar CAPEX advantage compared to Implemented PtP from 2 links:

Point to Point is 40% more expensive at 5 links Point to Point is 80% more expensive at 15 links

Deploy PMP Access Point Network for Lower Capex than PtP - AND save on OPEX

VectaStar vs Point to Point - Proposed Equipment & Installation Market Price

0

50

100

150

200

250

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Number of Links

Pri

ce ($

) Implemented P2P

Implemented VectaStar

Ideal P2P

VectaStar Cost to Deploy Compared to Point-to-Point

CA

PEX

London LTE network business case

Broader London Case Study of Savings over 5 year Business Case - With 360 BTS and 13 Hubs – Net Present Value:

Point to Point is 44% more expensive in CAPEX (First Year)Point to Point is 38% more expensive in OPEX (All Years)

VectaStar used Half the Spectrum of the PtP solution


NEXT GENERATION BACKHAUL

PMP Microwave Backhaul


LTE 2x2 MIMOVariable Carriers: 1.25, 5, 10, 20MHz

Peak Download: 173 Mb/s for 20MHz carrierStandard final: 2009, First Deploy: 2010,

Commercial: 2012-2014+

Key LTE Backhaul Requirements

LTE 4X4 MIMOVariable Carriers: 1.25, 5, 10, 20MHz

Peak Download: 326 Mb/s for 20MHz carrierStandard final: 2009, First Deploy: 2013(e),


LTE 1x2 SIMOVariable Carriers: 1.25, 5, 10, 20MHz

Peak Download: 100Mb/s for 20MHz carrierStandard final: 2009, First Deploy: 2010,


1. Capacity

BTS Backhaul must be more than 30-50Mb/s average & 150Mb/s peak; >300Mb/s peak by 2014

2. Synchronization

Backhaul must be synchronous with & transparent to several schemes being considered/used.

3. X2 Switching and Flat Networks

Ability to turn traffic at Hub (not in core) and support simplest flat network hierarchy

4. Low Latency

Backhaul last link latency must be a fraction of total latency requirement of ~10ms end-end

HSPA 1.8 168Single or Multi carrier (Multi carrier for Max

Rates)Peak Download: 168Mb/s for multiple 5MHz

carrierStandard final: 2004+, First Deploy: 2005-2007 +

Commercial: Now (except highest options: 2012(e))


Unique 26 & 28 GHz Radios: Highest spectral efficiency

5 bits/s/Hz net throughput (data) All outdoor zero footprint design Powerful integrated processor

Hitless Dynamic Adaptive Modulation 7 states: QPSK to 256QAM

Supports PtP & PMP architectures Single platform addresses entire network

VectaStar Terminal• 150Mb/s Ethernet throughput

• Gigabit interface

• Hybrid support via 8xE1 IDU

• Typical latency <600 µs

• LTE Ready

VectaStar Hub• Gigabit Ethernet

• Hybrid and Optimisation support via radio controller

• Deploy as PtP or PMP

• LTE Ready

What makes VectaStar different

Extremely simple, cost effective microwave backhaul platform

Gigabit Ethernet ODU

Outdoor

Indoor-48V DC

Supply

IP/Ethernet Network

IP/Ethernet Network

Gigabit Ethernet Sector

Outdoor

Indoor -48V DCSupply


Buy it now: quadruple capacity tomorrow

IP Optimisation

200% increase in IP throughput (traffic dependant)

Software Upgrade for VectaStar

Complements existing TDM optimisation feature

2+0 resiliency

Enables 300Mbps total sector capacity (2 x 28MHz channels @256QAM)

Software upgrade for 1+1 redundant AP configurations

If AP1 fails, all AP1’s,Terminals failover to AP2 until AP1 restored.

2+0 sector in normal operation Sector operation if an Access Point fails

AP1

AP2

AP1

AP2

0

100

200

300

400

500

600

Mb

ps

CPE/AP 2+0 AP

Base Throughput Optimised throughput


Point-to-Multipoint microwave backhaul

costs less

high performance

reduces complexity

LTE ready


Thank You!

VectaStar

No other microwaveSolution does this

Slide 26

Lance Hiley, VP [email protected]

mailto:[email protected]

http://www.cbnl.com/

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