demystifying in-building wireless (ibw) · demystifying in-building wireless (ibw) ... ericsson...
Post on 11-Jun-2018
219 Views
Preview:
TRANSCRIPT
Demystifying In-Building Wireless (IBW)• The IBW opportunity and its challenges• The changing landscape in the IBW sector• IBW technologies & architectures choices• Best practice
Event: Small Cell SIG @ IDEALondonAuthor: Oliver BosshardDate: 27/04/2016Version: 1.0
27/04/2016 Company Confidential © Real Wireless Ltd. 2016
Agenda
• Introduction
• In-building wireless - the opportunity and its challenges
• The changing in-building landscape
• Dimensioning the in-building wireless problem
• In-building architecture and solution evolution
• Small Cells versus DAS
• Relevant factors & parameters for the right in-building solution
27/04/2016 2Company Confidential © Real Wireless Ltd. 2016
27/04/2016 Confidential & © Real Wireless Ltd. 2016. All rights reserved.
Some Clients
About Independent wireless experts
Bridging the gap
• Leading independent wireless advisory firm• Team of over 35 experts with deep technology,
business, market and economics experience• Full-spectrum wireless: mobile, Wi-Fi,
broadcast, satellite, business radio and more• Technical and policy advice on 4G spectrum
auction to Ofcom and on 5G to the EU (EC)• Manage wireless at Wembley Stadium and
other major venues• Bridging the gap between the wireless industry
and wireless users. • Help the wireless industry to better
understand and meet the needs of its customers
• Help the wireless users to get the best from wireless to the benefit of their business.
• Founded and chaired Small Cell (Femto) Forum• Quality accredited to ISO 9001
Our practices & wireless elements expertise
27/04/2016 © Real Wireless Ltd. 2015. All rights reserved.
Wireless
Technology
Spectrum Topolology
The IBW opportunity
• 80% of mobile traffic is generated indoors and this traffic is growing 20% faster each year than outdoor wireless traffic[1].
• Fewer than 2% of commercial and public buildings are currently covered by dedicated wireless indoor solutions[2].
• Mobile data growth forecast is 53% CAGR from 2015 – 2020[3].
• Mobile service as a utility: • Historically, essential utilities include
water, gas, electricity, fixed telephony & broadband
• Today, ubiquitous coverage for mobile telephony and mobile broadband areregarded as the 5th utility
27/04/2016 5Company Confidential © Real Wireless Ltd. 2016
Source: Cisco Visual Networking Index (VNI) Forecast, 2016
1 “Amdocs 2015 State of the RAN”, Amdocs, 20152 “In-Building Wireless”, ABI Research, April 2014 / “Wireless in Buildings”, Commscope, February 20163 “The Cisco Visual Networking Index (VNI) Global Mobile Data Traffic Forecast Update, Cisco, February 2016
The IBW challenge
• Ever increasing capacity demand whilst voice (although important) occupies only a fraction of the total capacity demand
• Gap between traffic increase and revenue growth
• Mobile Network Operators (MNOs) don’t have the budget or a valid business case to cover the remaining 98% of pubic/commercial buildings
• The MNOs are still key as they are the spectrum holders/owners.
• An increasing number of technologies (2G – 5G, WiFi, WiGig, PMR), solutions (e.g. LTE-U, LAA LTE, MulteFire) and frequency bands are available and (some of them) need to be supported to meet voice and data requirements
27/04/2016 6Company Confidential © Real Wireless Ltd. 2016
Source: Heavy Reading
Source: Ericsson Mobility Report 2015
Global mobile traffic (monthly ExaBytes)
Revenue versus Traffic Growth
Focus of this presentation is a challenging environment:
• Busy city centre (e.g. London City) with tall modern commercial buildings (skyscrapers). Other challenging environments are e.g. stadia and airports
This environment means:
• High population (worker) density
• Dense outdoor macro / micro network
• High capacity demand
• Multi-operator, band and technology
• Physical constraints such as: • Outside-in interference
• Modern buildings thermal efficiencies(reflecting windows can be a benefit)
27/04/2016 7Company Confidential © Real Wireless Ltd. 2016
IBW in a challenging environment
The changing landscape around IBW
Increasing thermal efficient buildings
• Highly thermal efficient “green” skyscrapers feature typically highly reflective windows. This reduces the outside-in coverage and increases the need for a dedicated IBW coverage solution.
• Given there is a IBW solution, reflective windows can be anadvantage, reducing unwanted outside-in coverage(or vice where IBW solutions could interfere outside)
• The outside window is the ideal demarcation point betweenan IBW cells and the outdoor cells.
• Independent of window attenuation, there are typically strongcompeting signal levels at the lower floors and high broadbandinterference at the higher levels of a skyscraper
27/04/2016 8Company Confidential © Real Wireless Ltd. 2016
RF signal reflecting from thermal efficient window
in a modem building
The changing landscape around IBW
Change in business models• MNOs will not finance an IBW solution for public or
commercial buildings except:• If there is footfall in the millions such as LHR, Waterloo etc.
(typically multi-operator solutions) • It is a substantial corporate client (typically single operator
solution)
• Who will finance, design, install and maintain the IBW solution?• MNOs (historic carrier lead model)• Neutral hosts• Landlord owned (venue-led)• Potential hybrid models
• Landlords need to get mobile service in their buildings as it impacts their ability to let/sell/use it. This awareness leads to a change in landlords and developers approach - some setting budget aside for IBW solutions.
27/04/2016 9Company Confidential © Real Wireless Ltd. 2016
The changing landscape around IBW
The change in IBW ownership and emergence of neutral hosts
• The options for landlords are “Venue Led” (e.g. BAA’s LHR T5) or “Neutral Host” (e.g. Cheesegrater in London)
• The emergence of Neutral Hosts1: • In the US about 70% of cellular infrastructure is owned and
managed by neutral hosts (e.g. Crown Castle & American Tower)
• Neutral host ownership in Europe is growing and currently at around 10-15%
• Neutral hosts have a long term business model of 10 – 15 years on infrastructure compared to the short MNO ROI targets
• Neutral hosts aim to offer shared infrastructure where possible
27/04/2016 10Company Confidential © Real Wireless Ltd. 2016
1 Neutral host market feedback based on Real Wireless market research
(1) Leadenhall Building / Cheesegrater(2) London Heathrow Terminal 5
The MNOs will still need to be involved for the connection to their network and as they own and control the mobile spectrum.
The changing landscape around IBW
The IBW technologies and architectures
• Conventional Solutions
• Distributed Antenna Systems DAS:
• Active DAS
• Passive DAS
• Radio Remote Heads
• Small Cells
• DAS / Small Cell hybrid
• Other solutions:
• Wi-Fi / WiGig (licence exempt and limited in VoWiFi voice service)
• LTE-U / LAA LTE (still needs 4G/LTE coverage for signalling traffic)
• MulteFire (fully licence exempt 5 GHz LTE)27/04/2016 11Company Confidential © Real Wireless Ltd. 2016
DAS versus Small Cells
• DAS and Small Cells have both their advantages and disadvantages
• DAS:• Skills needed for deployment and expensive (Capex & Opex)
• DAS needs base stations and the cabling is coax based
• Larger systems work with optical remote units
• Future proof, multi-operator/band/technology
• Full flexibility with antenna type choice and placement
• Small Cells:• Cat5/Cat6 PoE fed
• Cost efficient and easy to install (Wi-Fi like)
• Needs just the MNO backhaul (could be building owners also)
• Technology, operators and bands limited
• Less flexibility and choice with antenna type and placement
27/04/2016 12Company Confidential © Real Wireless Ltd. 2016
Small Cell architecture
Level 6
Level 5
Level 4
Level 3
Level 2
Level 1
Basementx5
28m
32m
36m
40m
44m
48m
DAS architecture
Best practice considerations regarding IBW solutions
• Coverage is not the key criteria, what's really required is: • Dominant best server signal for good performance
• Sufficient supported spectrum to meet the capacity (traffic) needs
• Antenna power and positioning is key• Dominate outside-in signals
• Antennas at the extremities of the building pointing inwards
• Supporting older and newer technologies: • Supporting voice and data
• Supporting older and newer phones
• Operator neutrality• Allow all visitors to use their devices
• Allows tenants using different MNOs
• Costs and future proofing• Small Cell are cheaper to deploy compared to DAS but they
are less scalable / future proof
27/04/2016 13Company Confidential © Real Wireless Ltd. 2016
Small Cell capex savings for new 3G & 4G solution over MIMO DAS (Source: RW study)
Ideal antenna placement
Which solution is best for you
IBW planning considerations:
Coax vs Cat5/Cat6
Single-operator/technology/band vs. multi-operator/technology/bands
Venue led vs neutral host
Quick fix vs future proof
Food for thought:
Is there an opportunity for a neutral operator? (requires spectrum)
27/04/2016 14Company Confidential © Real Wireless Ltd. 2016
Questions
?27/04/2016 15Company Confidential © Real Wireless Ltd. 2016
ContactReal Wireless PO Box 2218PulboroughWest SussexRH20 4XBUnited Kingdom
Tel: +44 (0) 207 117 8514 Web: www.realwireless.bizViews: www.realwireless.biz/category/real-wireless-views/ News: www.realwireless.biz/category/real-wireless-news/Email: info@realwireless.bizTwitter: twitter.com/real_wireless
27/04/2016 16Company Confidential © Real Wireless Ltd. 2016
top related