Exploring Next Generation In-Building Public Safety ...s3.amazonaws.com/JuJaMa.UserContent/02917abe-e2d9-460d-b833 … · Exploring Next Generation In-Building Public Safety Networks

The most important thing we build is trust

ADVANCED ELECTRONIC SOLUTIONS AVIATION SERVICES COMMUNICATIONS AND CONNECTIVITY MISSION SYSTEMS

Exploring Next Generation In-Building Public Safety Networks Through LTE and Digital Distribution

Ingo Flömer and Muhammad Hasan

www.cobham.com/wireless

Agenda

• A bit about us

• Challenges of in-building public safety communications

• Some real life case studies

• Group discussion: your own in-building challenges

• Coffee break – 10.30-11.00am

• Importance of LTE in public safety deployments

• LTE vs TETRA and digital distribution

• Group discussion: thoughts on the future of in-building public safety coverage

• Introduction of a digital distribution system

• End

2 June 2016 1


Agenda

• A bit about us









• End

2 June 2016 2


Cobham Wireless at a glance

Global leaders in the provision of advanced communications and connectivity systems, producing innovative, cost-effective solutions that address market requirements for:

Improved Connectivity

Greater Capacity

Better User Experience

2 June 2016 3


Cobham – Our Parent Company

Cobham protects lives and livelihoods with its differentiated technology and know-how, operating with a deep insight into customer needs and agility. The Group offers an innovative range of technologies and services to solve challenging problems in harsh environments across commercial, defence and security markets, from deep space to the depths of the ocean, specialising in meeting the growing demand for data, connectivity and bandwidth.

Employing more than 12,000 people on five continents, the Group has customers and partners in over 100 countries, with market leading positions in: wireless, audio, video and data communications, including satellite communications; defence electronics; air-to-air refuelling; aviation services; life support and mission equipment.

Some numbers Annual revenue £1.9bn in 2014 £97m company funded R&D in 2014 (7% revenue*) Employing more than 12,000 people on five continents *Revenue of technology sectors only

The most important thing we build is trust

2 June 2016 4


Cobham Wireless

How we fit into the bigger picture

Cobham Communications and Connectivity

Provides aircraft and in-building communications equipment, law enforcement and national security monitoring solutions, satellite communication equipment for land, sea and air applications, specialist composite products for military and commercial applications, and test and measure instrumentation for RF, cellular communications and wireless networking

2 June 2016 5


Wireless

A global developer and manufacturer of DAS and wireless coverage solutions

Providing market-leading development & test tools for 2G, 3G, 4G, WLAN, [5G] and IP technologies

Cobham Wireless – Our Heritage

2 June 2016 6


Cobham Wireless Key Facts

Revenue circa £200m

Adjusted EBITDA circa 21%

800 employees

40 locations world-wide

Headquarters in UK

2 June 2016 7

www.cobham.com/wireless 2 June 2016 8

helping propel your network to the next generation

Validation

Advanced network validation tools for mobile & IP networks

Coverage

Intelligent Distributed Antenna Systems (DAS)

Our Areas of Expertise


Our Flagship Products

• TM500 Test Mobile can be regarded as the industry standard for base station development and testing

• TeraVM™ helps service providers and network equipment manufacturers load, analyse, develop, and validate the performance and capabilities of a wide variety of network and security devices

• idDAS is an intelligent digital distributed antenna system that provides an adaptable, customizable and expandable cellular and data

coverage solution for multiple operators and services over a common infrastructure

2 June 2016 9


Providing public safety solutions for >30yrs

• Global leaders in public safety DAS and coverage

• Cobham Wireless has provided public safety solutions for over 30 years including VHF, UHF, P25, 700/800MHz, TETRA, TETRAPOL and now LTE

2 June 2016 10


Cobham Wireless in- building solutions provide public safety coverage for some of the world’s most complex buildings

In-building solutions


Cobham Wireless DAS and coverage solutions support public safety applications for sports stadia and large campus environments

Campus and Stadia solutions


Cobham Wireless public safety DAS and coverage systems are deployed in over 90 metro organisations worldwide

Metro solutions


Cobham Wireless coverage extension products bring public safety coverage to remote and environmentally challenging locations

Coverage extension solutions


Cobham Wireless portfolio of GSM-R and on-board train coverage solutions keep passengers and rail operators communicating on the move

Rail and train solutions


Cobham Wireless has deployed public safety coverage solutions for road and rail tunnels in over 100 countries

Tunnel coverage solutions


Agenda

• A bit about us









• End

2 June 2016 17


Public safety communications

• In-building public safety networks are critical

• Such networks must meet a high-standard and be built to strict specifications

• In confined spaces and in-building environments the requirements are often tougher:

– Lots of people in a confined space at the same time

– Less physical space available for network equipment

– Often more difficult installation working conditions (tunnels, metros etc)

– Often only small windows of opportunity for installation

• Redundancy is usually a requirement

• Uninterrupted service is a must

An overview

2 June 2016 18


Public safety communications

• PS standards and regulations constantly changing – need technology that can keep up

• Always building networks from the ‘outside in’ is not going to work…needs to be a renewed focus on ‘inside’

An overview continued…

2 June 2016 19


Agenda

• A bit about us









• End

2 June 2016 20


LTE case study example

• A governmental headquarters in Doha, Capital of Qatar required a public safety communication system that incorporated both TETRA and LTE

• TETRA 400 – for voice communication

• LTE 800 – for data communication

• One Fibre DAS system to support both technologies

2 June 2016 21


LTE case study example

2 June 2016 22

TETRA BTS

POI - Point of Interface

OMU II

BSF-3604 unit 1 antenna ports

+36dBm composite output on one antenna port

MBF-3008 unit 1 antenna ports

+30dBm composite output on one antenna port

LTE

BTS

System overview…


Case study: Heathrow T2

2 June 2016 23


Case study: Heathrow Terminal 2

•Heathrow Terminal 2 is one of the UK’s largest construction projects, costing £2.5bn

• Terminal 2 will have the capacity for 30 million passengers each year

•Required both cellular and public safety coverage

• All services needed to be supplied within a tight time-frame and were ready for the opening to passengers

The challenge

2 June 2016 24



• The Public Safety system was fed from 2 different base station locations with automatic and manual switching providing secure and reliable redundancy

• Providing both UHF and TETRA coverage allowing the London Fire Service and other emergency services workers to communicate effectively inside T2 in a disaster scenario

• Supports the airport’s trunked radio system utilized by airport staff

•Monitored by AEM

The solution

2 June 2016 25



• The emergency services have a fully redundant UHF and TETRA communications system at their disposal should the need arise

• Transport Secretary Patrick McLoughlin is quoted by the BBC as saying: “The new terminal is a perfect example of cutting-edge technology and design that can combine to make the best use of capacity, to improve the passengers' journey and experience, further reinforcing Heathrow's reputation as a world class airport."

The benefit

2 June 2016 26


Case study: Burj Khalifa

2 June 2016 27



•World’s tallest building – > 828 metres high and over 160 stories!

•Required fibre-fed TETRA public safety network with redundant fibre ports

•Needed to utilise existing fibre backbone already installed

•Needed a fully customised design that was completely redundant and provided automatic switch-over between the two base stations feeding the system

The challenge

2 June 2016 28



• Several main suppliers of coverage solutions were approached – only Cobham Wireless had the capability of providing a fully customised system to fulfil the requirements

• Fibre system consisted of 2 master sites and a cloud of optical remote units

• Fibre hubs and remote units were each fully customised with dual optical ports

– Each master hub was connected to a base station to provide redundancy

– Each remote unit was also connected to both master hubs with automatic switching from main to standby, in the event of main failure

The solution

2 June 2016 29



•World’s tallest building has a fail-safe public safety communications system

•Operates with full redundancy

•Demanding requirements resulted in the implementation of a high-quality network

The benefit

2 June 2016 30


Case study: German TETRA Network

2 June 2016 31



• Largest TETRA network in Europe!

• Providing a reliable TETRA network for all emergency services. Plus several private TETRA network services such as metros, airports and energy providers

• Adhering to the German BOS authority guidelines for indoor coverage planning

• Provide one system to support both TETRA and VHF services

The challenge

2 June 2016 32



• Cobham Wireless provided a TETRA system consisting of both Off Air and Fibre Optic solutions to meet the requirements of secure network to be used by all emergency services

• Cobham Wireless had the capability of providing a fully customised system to fulfil the TETRA and VHF requirements of a private network

• Cobham Wireless deployed a TETRA solution in almost all of the metros in Germany

The solution

2 June 2016 33



•Germany has the largest fail-safe TETRA communications system in Europe

• All emergency services can communicate on 1 network

•Operates with full redundancy

• All major buildings, metros, shopping centres, factories and airports have a reliable public safety communication network

The benefit

2 June 2016 34


Case study: Washington Metro

2 June 2016 35



• Since 2005 Cobham Wireless has been working closely with the Washington Metropolitan Area Transit Authority (WMATA) to support the on-going augmentations and retrofits to the legacy coverage systems by offering key design support and supplying equipment

•WMATA operates a Comprehensive Radio Communication System (CRCS) in the 490MHz band and an 800MHz radio coverage for 1st responders for Arlington County

• This means having to ensure radio coverage in various challenging environments including underground in the metro tunnels and stations, and above ground in the various parking garages and stock yards owned and run by the authority

The challenge

2 June 2016 36



• Cobham Wireless was able to provide product and engineering support in the following key areas:

–490MHz line amplifiers to replace current obsolete units

–Outdoor channelized repeaters using state of the art digital signal processing (DSP) technology for the in-fill coverage in the parking garages and stock yards

–Fibre optic fed repeaters for coverage of the stations along the new Dulles Corridor network as well as 800MHz coverage for the legacy 800MHz FO system

The solution

2 June 2016 37



–Redundant head-end for the 490MHz/800MHz systems, incorporating a DSP filtering technology ‘noise gating’ system, allowing for the balancing and improvement of noise levels generated from the legacy fiber optic remote system. Consequently improving the dynamic range of radio coverage from below ground to above ground. This ‘gating’ is done by allowing channel modules to activate on a pre-defined squelch level, resulting in decreased overall noise levels and better performance on the system

–All of the above systems offer high ‘mean time between failures’ (MTBF) performance thereby ensuring and supporting WMATA’s system reliability and performance

The solution continued

2 June 2016 38



• The improvements made mean that the WMATA communications system is increasingly flexible and future-proofed against technology upgrades and changes

• Improvements to legacy kit are necessary to keep passengers and staff protected

The benefit

2 June 2016 39


Case study: TETRA Network, Singapore

2 June 2016 40



• Provide equipment for a nationwide public safety network across the whole of Singapore

• Project included every major iconic and government building in the country

• A mix of off-air and fibre DAS systems for TETRA

•Needed a fibre optimisation strategy on the Singapore metro due to limited amount of existing fibre

The challenge

2 June 2016 41



• Cobham Wireless were selected due to their expertise in similar high-profile TETRA deployments around the world

•Digital channel selective off-air systems for in-building coverage and selected outdoor areas

• Fibre DAS system for coverage inside the metro – currently consisting of 180km of lines!

• AEM (Active Element Manager) monitoring system allowing management and monitoring from multiple sites

The solution

2 June 2016 42



•New TETRA network enhances ability of first responders to maintain comms in challenging spaces within Singapore

• Fibre optimisation – saving costs associated with further fibre deployment

• Future-proof system – able to scale as required (the metro alone is due to double in size by 2030!)

The benefit

2 June 2016 43


Case study: Brisbane Airport Link

2 June 2016 44



• Largest road infrastructure project in Australia

• Longest tunnel in the country required both public safety and cellular coverage

• Provide multi-operator coverage as well as radio broadcast and cellular mobile services inside the tunnel

The challenge

2 June 2016 45



• A specially customized coverage solution

• Final fibre DAS system consisted of 50 multiband remotes for the cellular operators and 40 UHF and TETRA 800 remotes, all installed throughout the length of the tunnel

• All remotes are linked to an Optical Master Unit (OMU) to power them, located inside the tunnel too

• System is managed by AEM (Active Element Manager)

The solution

2 June 2016 46



• The Airport Link tunnel now benefits from full public safety and cellular coverage

• Bisconnections tunnel operator claims it is not only the longest tunnel in the country but also the safest

• Flexible and future-proof system

The benefit

2 June 2016 47


Case study: China Metro

2 June 2016 48



• Four of the top ten busiest metros are in China

• The metro carries millions of passengers every day

•Required TETRA train-to-track communications solution on more than 40 metro lines in 13 cities in China

• Competing in a competitive Chinese business landscape – lots of ‘me-too’ products

The challenge

2 June 2016 49



• A fibre DAS TETRA 800MHz system across the following metro networks to date:

The solution

2 June 2016 50

–Beijing

–Shanghai

–Guangzhou

–Nanjing

–Chengdu

–Wuhan

–Suzhou

–Kunming

–Nanchang

–Dongguan

–Wuxi

–Ningbo

–Shenzhen



• In some cases, a base station is positioned at the end of a long section of tunnel to feed remote units placed within the tunnel/station itself connected by optical fibres

• Alternatively, in some cases most of the equipment is located above ground

•High-specification weather-proofing is critical given the extremely hot weather that the cities can experience in the summer (with an average temperature of 90 °F)

The solution continued

2 June 2016 51



• China metro benefits from a solution that is technically superior to others

• Transport authorities now have excellent levels of reliability in their train-to-track communications

• The TETRA system is flexible enough to upgrade easily – allowing for the future network expansion plans that are expected

The benefit

2 June 2016 52


Agenda

• A bit about us









• End

2 June 2016 53


Group discussion

•What are your own in-building challenges?

– Are they technology related or environment related? Or both?

– What solutions have you come across to solve these challenges? What has worked and what hasn’t?

•What do you think the future of in-building public safety coverage might hold?

– Will data transmission play a role?

– Is a combined TETRA/LTE architecture a possible solution for you?

Some questions to get you thinking…

2 June 2016 54


Agenda

• A bit about us









• End

2 June 2016 55


Agenda

• A bit about us









• End

2 June 2016 56


The future is LTE

• Public safety networks today are mainly based on voice-centric technologies (TETRA, P25 etc)

• BUT… high-speed data services should now feature as part of our mission critical communications:

– Sharing of high resolution imagery

– Real-time video exchange of disaster scenarios

• Narrowband is limiting –

broadband is the future

2 June 2016 57


Example of LTE applications

• Video feed from an emergency response helmet camera

• Facial recognition from a photo

• Checking ID of electronic devices/cards

– Mobile phones, Bank cards, security passes, etc

2 June 2016 58


The Challenges of LTE

• Public safety community is all about standards and regulation

• Interoperability is vital

• Concerns around congestion on the network

• Non-dedicated spectrum for mission critical applications is an issue (spectrum scarcity)

• Public safety organisations feel

they are not well understood as

‘customers’ for LTE

2 June 2016 59


Conflict of spectrum

• i.e. typical European scenario

•Will LTE700 be allocated for cellular or public safety?

2 June 2016 60

Television DVB-T

Until ~ 2010

Television Analogue

LTE 800

From ~ 2010

Television DVB-T2

Future?

LTE 700 LTE 800


Is TEDs an alternative?

• Data rates are much better than TETRA but still have relatively limited throughput

•Wide spectrum (up to 150 kHz) required and/or cell range greatly reduced (due to the high modulation rate)

2 June 2016 61

Source: www.mundotrtra.com

Modulation 25

kHz 50

kHz 100 kHz

150 kHz

TT/4-DQPSK 36,0

TT/8-DQPSK 54,0

4-QAM 38,4 76,8 153,6 230,4

16-QAM 76,8 153,6 307,2 460,8

64-QAM 115,2 230,4 460,8 691,2


How do we get there?

• Government, public safety organisations and the telecoms community need to work together

• Secure funding for LTE deployment

• LTE-overlays

• Learn from commercial network experience

•Whatever happens – we need to be LTE-ready

2 June 2016 62


Current status of public safety plan in EMEA

U.K

• Since 2005, mission-critical communications have been transmitted over the Airwave system-a privately owned TETRA network

• It serves all three emergency services and other national users that pay subscriptions fees

• Although the performance of the TETRA system is very good, it is “extremely expensive” for users

• The contracts associated with the Airwave system are scheduled to expire from 2016 to 2020, so the UK Home Office has selected an alternative which will provide broadband wireless services for public safety using the EE cellular LTE spectrum 800MHz

2 June 2016 63



FRANCE

• For mission-critical communications

a TETRA network is in operation

• To provide more bandwidth and data

throughput, LTE will be introduced as

an additional service

• For LTE a dedicated spectrum will be used

(2x3 MHz; 2x5MHz) For this a new band 68 will be standardized by 3GPP

2 June 2016 64



GERMANY

• Germany host the biggest public safety TETRA network worldwide

• The rollout is still underway, most forces use both analogue VHF and TETRA

• For a big event currently a reserved block of LTE 1800MHz spectrum is used to carry live video transmission

2 June 2016 65



MIDDLE EAST

• A legacy TETRA system was in operation for mission critical communication

• To enable data services, LTE spectrum is now used in parallel to TETRA

• For LTE a standard cellular bands (700, 800 and 2600MHz) are being used or under consideration.

• Combined TETRA/LTE distribution systems are in operation

2 June 2016 66


Agenda

• A bit about us









• End

2 June 2016 67


LTE vs other options

2 June 2016 68

TETRA P25 LTE

Supports voice - not yet…

Robustness

Supports high-speed data

Spectrum availability Limited Not an area of concern…for

voice Low

Public safety features : – Group call – Resiliency – Push to talk

- not yet…


LTE vs other options

2 June 2016 69

Middle East Australia USA Europe

Nationwide PMR Networks

Multiple No - Multiple

No - Fragmented

multiple networks

LTE Public Safety Spectrum

Yes In some countries

2 x 5MHz allocated in

800 MHz band

2 x 10MHz allocated in

700 MHz band

New bands, sharing cellular

spectrum

Funding for LTE

Government funding

available for LTE

Funding available

U.S. 7 billion funding available for LTE

Yes, i.e. F and UK

Trialling of Public Safety LTE


Public safety LTE development timeline

2 June 2016 70

LTE Standards:

Group - Calling

Proximity Services

Public Safety Spectrum

2014 2018

LTE Standards:

Public Safety Resilience

LTE Standards:

Push to Talk Voice Mission Critical Data

Development Work on Resilience, Other..

Development Work on Group Calling- LTE Vendors


3GPP Rel 12 - Proximity services in Public safety LTE networks

• Direct communication - a radio connection is established between the users’ mobiles without transiting via the network. This saves network resources and can also permit public safety communication in areas outside network coverage.

• User equipment to network relay - one mobile acts as a relay for another and provides access to network services outside the normal network coverage area.

2 June 2016 71


3GPP Rel 12 – Group call

2 June 2016 72


Case study

Conflict between multiple technologies

2 June 2016 73

Public Safety LTE Commercial LTE

TETRA


Case study

• Adjacent LTE spectrum increase the risk of interference

• IMD from other services increase the noise and reduce the LTE throughput

Problems

2 June 2016 74


DSP based filtering

• High performance – low delay and sharp roll-off filters

• Any LTE filtering combination (1.4,3,5,10 MHz) can be supported

• Can filter NB 25KHz Tetra channels dramatically reduce the IMD products

• Selectivity - can only select the required services in the coverage area

• Homogeneous coverage of all services in the building each filter has it own power and AGC settings

• Overall cost is reduced as a single Power Amplifier can be used

2 June 2016 75


DSP based BDA

2 June 2016 76


Could digital distribution assist public safety communications?

• Utilising existing LTE spectrum to support Public Safety communications

• Running Commercial LTE and Public Safety LTE solutions on one reliable system

• Utilising existing public safety spectrum to support voice and data

2 June 2016 77


Agenda

• A bit about us









• End

2 June 2016 78


Group discussion

• Can TETRA and LTE work together?

– Are they complimentary or competitive?

– Will LTE simply be used for data transfer or is there a future in voice?

•What are your thoughts on overlay networks to support high-speed data applications?

•What are you thoughts on using digital distribution in a public safety environment?

Some questions to get you thinking…

2 June 2016 79


Agenda

• A bit about us









• End

2 June 2016 80


idDAS: the future of in-building wireless coverage

2 June 2016 81


idDAS : how does it work?

For example: a city location with multiple buildings



During the day: high-capacity allocation to the University



During a conference: high-capacity allocation to the Hotel



During an exhibition/event: high-capacity allocation to the Conference centre



During a sporting event: high-capacity allocation to the Stadium


idDAS system concept heterogeneous DAS

2 June 2016 87

MSDH

CPRI

CPRI

CPRI

CPRI

CPRI

CPRI

MTDI

MTDI

Router


Typical idDAS system overview

2 June 2016 88


Digital filters and IP backhaul on CPRI


• A-POI: Active Point Of Interface – Up to 16 BTSs Active Point Of Interface with up to +30 dBm of BTS

power input. For direct connection to BTS (up to 50dBm) H-POI (High Power POI) is required

– Modular plug in band-modules with individual RF power management

– Smart ALC (SALC) enables automatic power management by traffic changes tracking

• MTDI: Multi Technology Digital Interface – Modular plug in 4 band-modules supporting up to 8 RF interfaces

– Digitizes and allocates digital filter

• MSDH: Multi Sector Digital Hub – Cell resource distribution routing , sector switching and broadcasting

– Supports up to 15 * 10Gb/s idRU with embedded 1Gb/s IP backhaul

• id Remote Unit – Up to four band: 30dBm per band medium power and 37-43dBm per

band high power per band idRU in a compact IP65 enclosure

– Low noise figure supporting TETRA, LTE, WCDMA, CDMA and GSM

– Small form factor IP 65 boxes with convection cooling on medium power

– Embedded 1Gb/s IP backhaul interface

2 June 2016 90

BTS


idDAS – Main features

• All digital processing and CPRI transport

• Star based architecture

• Central patented CPRI router hub (MSDH)

• Software controlled capacity management and shifting

• Cable agnostic - MMF, SMF, (CAT/5/6 in future release)

• Fibre transceivers are part of the cables

• Embedded 1Gb/s backhaul for WiFi, Small Cell, IP–CCTV etc

idDAS is not just a digital DAS… it’s an intelligent digital DAS!

2 June 2016 91


idDAS – Main advantages and benefits

• Robust low noise high quality performance

• High dynamic range architecture (Near far performance)

• Patent pending, noise management algorithms

• PIM measurement and isolation of problems

• Failure in single idRU does not degrade overall performance

Advanced UL noise performance

2 June 2016 92



• Capacity Management

– Patented algorithm for individual routing of each cellular resource

– “Pin-pointing” cell resources to selective zones

– Automatic shifting between different capacity routing profiles

– Capacity shifting when adding sectors

– Capacity shifting when adding small cells

– Capacity shifting when testing to the system

• Huge capacity transport for 30Km and more on a single fibre pair

– I.e. 40 sectors and 8 Ghz spectrum

– Inherent MIMO capability

– MIMO A&B run on the same cable

– No extra cable wiring is required

– Selective MIMO capability enhances capacity in configurable certain zones

– Adding MIMO capability to selective RRUs is simple

Capacity management and transport

2 June 2016 93



• Digital combining of multiple BTS resources

– Eliminates interferences between the operators

– Minimizes PIM issues between operators

– Enables the combining of cellular and public safety DAS on the same infrastructure

• idDAS provides “VPN” per operator per cellular resource

• Quick and easy to install, calibrate, commission

• Integrated CW testing capability

The user and multi-user experience

2 June 2016 94


Multi-band and MIMO Support with idRU

• Example for:

– TETRA 400

– LTE 800

– LTE 1800

• MIMO on 800 and 1800

2 June 2016 95

idRU-40400/800/

1800*

MIMO-A

idRU-40

800/1800*

MIMO-B

CPRI

CPRI

RF

RF

MSDH

idDAS RU MIMO A&B

40

0/8

00/1

80

0

80

0/1

80

0

*other band combinations available


System redundancy block diagram

2 June 2016 96

Features System A System B

No. of Fibers [X] from MSDH X X/2

RU to RU required coverage Y 2 x Y

Single point of failure protection Yes Yes

Double point of failure protection Yes No

Solution complexity Mid Low

Recover time after failure RU reboot 0

Alarm when failure at Network Mng. Yes Yes

Action needed if Master site fails Change CPRI source RU Tx +3dB


Agenda

• A bit about us









• End – Any final questions or comments?

2 June 2016 97

Documents

Exploring Next Generation In-Building Public Safety ...s3.amazonaws.com/JuJaMa.UserContent/02917abe-e2d9-460d-b833 … · Exploring Next Generation In-Building Public Safety Networks