Delivery of Wi-Fi / 3G small cells network into London

Cambridge Wireless Event 2012

Delivery of Wi-Fi / 3G

small cells network

into London

Steve Brown

New Technology Trials Manager

Telefonica UK

REC/12/083, Issue 3, 1/10/12 Confidential 1

REC/12/083, Issue 3, 1/10/12 Confidential 2

Spotters Guide to London Small Cells

Telefonica UK Network Today

• 2G (GSM) Network (Launched 1994)

No. Sites: >11,000

Coverage: 99% Population Coverage

Capacity: 5Gbps

Capability: Voice, Data (240kbps DL/100kbps UL)

• 3G (UMTS) Network (Launched 2004)

No. Sites: >10,000 (U2100 & U900)

Coverage: >90% Population Coverage

Capacity: >50Gbps

Capability: Voice, Data (42Mbps DL/ 5.8Mbps UL)

• 4G (LTE) ...... Central London 4G Trial

No. Sites: +25

Coverage: 40km2

Capacity: >10Gbps

Capability: Voice, Data (150Mbps DL/50Mbps UL)

UMTS

REC/12/083, Issue 3, 1/10/12 Confidential 3

Small Cell Technology

2009 2010 2011 2012 2013 2014 2015

4G1800/2600

4G800/900

3G900

/HSPA+

6 Sector

Cell Split

Year Microcells

Cell Split

6 Sector

Microcells

What do customers want from O2’s network?

Coverage, Capacity & Capability

REC/12/083, Issue 3, 1/10/12 Confidential 4

Telefonica UK Network of Tomorrow

Data Traffic Forecast - Global

REC/12/083, Issue 3, 1/10/12 Confidential 5

Data Traffic Increase in Cities is

expected to increase by > x50

Telefonica UK Macro Site Evolution

3G and 4G will deliver a x8 Capacity Increase on Macrocells

x50 will be required in the high traffic areas

Small cells are the only option

Technology @ Site Peak User

Throughput

Cumulative Average Site

Throughput

4G+ (2015) – LTE-A + HSPA++ 150Mbps 160 Mbps

4G (2013) – LTE + HPSA+ 100Mbps 110 Mbps

3G HSPA+ (2012) – HSPA+42 17.7 Mbps 25.2 Mbps

3G HSPA (2011) – HSPA 14.4 17.7 Mbps 18.9 Mbps

3G (2004) – HSPA 3.6 6 Mbps 5.4 Mbps

2G (2000) - GPRS/EDGE 40 kbps 120kbps

Site Throughput

Capacity

REC/12/083, Issue 3, 1/10/12 Confidential 6

x8

3G Macrocell

Limited to 7 x 2 carrier

macrocells within 1x1km

area

2100 MHz (1) – 1st carrier

2100 MHz (2) – 2nd carrier Network 2011

REC/12/083, Issue 3, 1/10/12 Confidential

Macrocell

Microcell Picocell

Busiest 200x200m area

requires 6 microcells

plus 3 carrier

picocells/public femto

cells

Busy areas require 50m

radius microcells

Limited to 7 macrocells

within 1x1km area

Microcell range limited

to 150m due to building

loss and corner loss

All microcell deployed with 3

carriers (2xU2100 1xLTE2600).

2100 MHz (1)

2100 MHz (2)

900 MHz (1)

900 MHz (2)

800/1800/2600 MHz Network 2015

REC/12/083, Issue 3, 1/10/12 Confidential

2009-2010: Street Level “Micro” Cells

Upgrading of 2G Street Level Microcells to 3G Micro

REC/12/083, Issue 3, 1/10/12 Confidential 9

Macrocell equipment and

NTE Located in basement/

store cupboard

Bellbox antenna

Street Level

RF Feeder

Erl

an

gs

Cell

Microcell/Macrocell RSCP

-80.0

-70.0

-60.0

-50.0

-40.0

-30.0

-20.0

0 25 50 75 100 125 150 175 200

Distance (m)

RS

CP

(d

Bm

)Macro RSCP [dBm]

Micro RSCP [dBm]

•Landlords

•Volumes

•Cost

•Time

•Maintenance

•Transmission

•Technology

•Traffic Capture

•Macrocell

•Shared Carrier

Traditional Microcell: Very High Cost per kE/Mbps/km2

2011: Small Cell Total Cost of Ownership Modelling

3rd Party Pole, Public Indoor Femto & WLAN looking most promising

REC/12/083, Issue 3, 1/10/12 Confidential 10

REC/12/083, Issue 3, 1/10/12 Confidential 11

Public Wifi ... but also exclusive access to

Central London Street Furniture

O2 Wifi

2012: O2 Metro Wifi Deployment Areas

All priority areas to be delivered by Summer 2012

REC/12/083, Issue 3, 1/10/12 Confidential 12

High Level Delivery Plan

REC/12/083, Issue 3, 1/10/12 Confidential 13

Apr-12 May-12 Jun-12 Jul-12Dec-11 Jan-12 Feb-12 Mar-12

Procurement

Design & Development

Site Surveys, Design & Approval Ph 1a

Optim

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Backhaul Orders & Delivery

Hub Deployment Optimisation

Site Surveys, Design & Approval Ph 1b

Deployment

Macro Hub Survey, Plan, & Deploy

Exhibition Rd

Small Cells

Small cells Rio Style!

REC/12/083, Issue 3, 1/10/12 Confidential 14

Small cells London

High Level Delivery Plan

REC/12/083, Issue 3, 1/10/12 Confidential 15

Apr-12 May-12 Jun-12 Jul-12Dec-11 Jan-12 Feb-12 Mar-12

Procurement

Design & Development

Site Surveys, Design & Approval Ph 1a

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Backhaul Orders & Delivery

Hub Deployment Optimisation

Site Surveys, Design & Approval Ph 1b

Deployment

Macro Hub Survey, Plan, & Deploy

Exhibition Rd

High Level Delivery Plan with Planning Approval

REC/12/083, Issue 3, 1/10/12 Confidential 16

Jul-12May-12 Jun-12Apr-12Dec-11 Jan-12 Feb-12 Mar-12

Procurement

Design & Development

Site Surveys, Design & Approval Ph 1a

Optim

isation

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Macro Hub Survey, Plan, & Deploy

Backhaul Orders & Delivery

Hub Deployment

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Site Surveys, Design & Approval Ph 1b

Local Authority Planning Approval

Exhibition Rd

Westminster

Example Install: Parliament Square

Transmission Hub (7762)

Access Point (8800)

Type 1 Install Type 2 Install

REC/12/083, Issue 3, 1/10/12 Confidential 17

Access Point and Transmission Equipment

Ruckus 7762 5GHz

Remote Terminal (Wi-Fi)

239x195x141mm

Weight 1.9kg

Ruckus 8800

Access Point (Wi-Fi/Cellular)

380x310x170mm

10kg

REC/12/083, Issue 3, 1/10/12 Confidential 18

UK Small Cells – (Wifi + 3G)

Adaptor plates

attaches to Wifi

unit with two Flat

head M6 screws

per side ALU Femto Unit

mounts to adaptor

plates.

Confidential 19 REC/12/083, Issue 3, 1/10/12

High Level Design - Project Metro Network Architecture + Fibre

Confidential

O2

O2

Central Hub

Ethernet

Fibre Link

P-MP

Microwave

28GHz

NTE

O2 Existing O2 Macro Site

Point to Multi Point Dish

Radio Access Point

Street Lighting Column with

WiFi Access Point

5Ghz

5Ghz

Fibre to

Post

Fibre to

Post

O2 WiFi

Core Network /

Data Centre O2

28Ghz

28Ghz

REC/12/083, Issue 3, 1/10/12

High Level Design – Exhibition Road

Confidential 21 REC/12/083, Issue 3, 1/10/12

High Level Design – Exhibition Road

• Target Outdoor RxLev >= -90dBm.

• The design consists of 9 APs.

• The design will deliver an estimated

capacity of 9x15Mbps = 135Mbps

within the planned coverage area.

• Therefore delivering 1350Mbps/km2

• Already shown 50Mbps DL & UL

during initial testing

Confidential 22 REC/12/083, Issue 3, 1/10/12

Exhibition Road: Banner Design

Confidential 23 REC/12/083, Issue 3, 1/10/12

Exhibition Road:

Actual Install

Confidential 24 REC/12/083, Issue 3, 1/10/12

High Level Design – Trafalgar Square

Confidential 25 REC/12/083, Issue 3, 1/10/12

London Small Cells Traffic Offload

Confidential 26 REC/12/083, Issue 3, 1/10/12

O2 wifi Offload Analysis

O2 wifi is a “open to all” service – not just O2 customers

O2 Metro wifi is a predominantly outdoor/first window network

Indoor areas typically covered by other indoor wifi networks

Confidential 27 REC/12/083, Issue 3, 1/10/12

O2 Metro Wifi Deployment

O2 Metro Wifi deployed to highest traffic areas in Central London

Confidential 28 REC/12/083, Issue 3, 1/10/12

O2 Metro Wifi & Cellular Offload

O2 Metro Wifi area includes 165 2G sectors, 244 3G sectors

Confidential 29

Phase 1 Areas

Covent Garden

Kensington High Street

Exhibition Road

Leicester Square

Oxford Street

Parliament Square

Piccadilly

Regent Street

Trafalgar Square

REC/12/083, Issue 3, 1/10/12

O2 Metro Wifi Surrounding 3G Cellular Traffic Offload

Confidential 30

O2 wifi carrying around 15-20% of 3G traffic and

offloading around 5-10% O2 data traffic thus far

Volumes slowly ramping up.

0%

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4%

6%

8%

10%

12%

14%

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Week Commencing

3G HSDPA & O2 Wifi Daily Data Volume [GBytes] - All Areas

All Areas 3G

All Areas O2 wifi

O2 wifi (O2 Subs)

O2 wifi Onload (O2 Subs) %

Official O2 Wifi Launch (25/07/12)

Olympics

REC/12/083, Issue 3, 1/10/12

O2 Metro Wifi Traffic per Area

Confidential 31

Amount of traffic offloaded event/weather dependent.

Commercial areas (Oxford / Kensington High Street) busiest areas

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Week Commencing

O2 wifi Daily Data Volume [GBytes] - Individual Areas

Covent Garden wifi

Exhibition Road wifi

Leicester Square wifi

Oxford Street wifi

Parliament Square wifi

Piccadilly wifi

Regent Street wifi

Trafalgar Square wifi

Kensington High Street wifi

REC/12/083, Issue 3, 1/10/12

O2 Metro Wifi Traffic per Area - Daily

Confidential 32

Office hours for Parliament Square

with lots of upload just before the

6pm news ...

Kensington High Street – PM

activity – in bed by 1pm!

Oxford Street – Get up late – Stay up

late!

Throughputs average over 3 minutes

50% traffic from Apple devices!

REC/12/083, Issue 3, 1/10/12

Geo Traffic Data Confidential

Other Small Cell Options for Investigation

Confidential 34

Metro-femto located

at top of column

Enclosure suitable for housing:

- A.C. power isolator (on/off switch)

- AC to DC power supply (for xDSL modem)

- xDSL modem

- Power over Ethernet injector

Enclosure suitable for housing:

- Radio Unit

- A.C. power isolator (on/off switch)

- AC to DC power supply (for xDSL modem)

- xDSL modem

- Potentially point-to-multipoint modem.

Antenna located

at top of column

Small enclosure 1000 (h) x 300 (d) x 500 (w) mm

(approx.)

Large enclosure 1200 (h) x 700 (d) x 800 (w) mm

(approx.)

On-column enclosure

Enclosure suitable for housing:

- A.C. power isolator (on/off switch)

- AC to DC power supply (for xDSL modem)

- xDSL modem

- Power over Ethernet injector

- Potentially Flexi-lite Node-B

Metro-femto or

antenna located

at top of column

600 (h) x 200 (d) x 500 (w) mm

(approx.)

REC/12/083, Issue 3, 1/10/12

Small Cells - Solar Pole Concept

Confidential 35

Telefonica UK’s first Solar Powered 3G/4G/Wi-Fi Access Point

REC/12/083, Issue 3, 1/10/12

And Finally:

Three legs on which the small cell stands (or falls!)

36 Confidential

Small Cells

Physicals

Visual appearance

Enclosures

On-pole mounting

On-building mounting

Power

Lighting circuit

New feeds

Fuses/Meters

Backhaul

Copper pairs

Optical fibre

Radio

REC/12/083, Issue 3, 1/10/12

In Summary

London “activities” in 2012 have accelerated the deployment of small

cells for Telefonica UK

• 3rd Party Poles, Indoor open Femto and Wifi are the way forward

• Proven that lamppost mounted small cells are feasible – London Lampposts

• Both fibre and Microwave is suitable for backhaul

Next steps

• Study further Femto/Wifi and Micro/Wifi integration

• Study further the interaction with the Macro layers (EAP-SIM)

• Further prove 5GHz/Fibre, 5GHz/28GHz

• Investigation of other small cell backhaul technologies

› VDSL

› 28GHz Mesh, 60GHz P2P

Small cells need to also come with a small cost!

Confidential 37 REC/12/083, Issue 3, 1/10/12

Thank you for your time

REC/12/083, Issue 3, 1/10/12 Confidential