small cells and das - cambridge wireless€¦ · alcatel- lucent small cell zinwave service module...

CONFIDENTIAL

Small Cells and DAS

The Wireless World IndoorsThe Wireless World Indoors 2 2CONFIDENTIAL

The Company

• Zinwave is a Cambridge UK start-up, founded in 2005• Based on advanced RF and Photonics technology from

Cambridge and London Universities

• Product is a Wideband Converged Services Platform • Unique all fiber wideband RF DAS product• Supports all Wireless Services & Applications between 150MHz

and 2700MHz• In-Building Coverage, Capacity & Connectivity• Lowest Total Cost of Ownership• Global installed base across multiple verticals

• Initially venture backed company acquired in January 2014• $1.8B Private Parent Company –McWane, Inc• Part of a 5 company Technology Group


Traditional active and hybrid DAS• Wideband coaxial cable distribution

• Complex to design for different frequencies

• Expensive to install

• Range limited

• PIM concerns

• Suitable for larger installations

• Narrow-band specific hardware

• Expensive to scale for multi-services

• PIM concerns with hybrid systems

Traditional Passive

Zinwave Active Wideband

• All frequencies from 150MHz to 2.7 GHz

• Scalable for any size installation

• Single layer multi-service capability

• Very low system delay

• Lowest TCO and initial cost per sq metre

for multi service coverage

The Service Flexibility of Passive with the Performance of Active

Zinwave’s Unique Proposition


Wideband DAS

Supports any service or wireless technology from 150MHz to 2.7GHz

ONE hardware layer; just 4 components

Simple & smart to design and install for any service mix

Single or Double star fibre architecture scalable for any building size

The only DAS that provides FDD or TDD support

Simple multi-service solution for LTE and HSPA+ MIMO

Integrated switching matrix allows flexible routing of services

Ease of future service addition - the only truly future-proofed DAS

Very low end to end delay. No digital processing.


The separation between the dual-port antennas at the same location needs to be sufficient to provide at least 40dB of

isolation between the TX and RX ports of the same remote unit. The integrated isolation in a dual port omni antenna

such as the Kathrein 80010709 will provide > 30dB isolation between V and H polarizations. At 2.6GHz, physical

separation would need to be in the order of 2M to achieve 40dB isolation.

MIMO Architecture

MIMO eNodeB

A

B

RU 1

B

RU 1

A

TX RX

TX RX

2M @ 2.6 GHz~


Small Cells & DAS

Optimized Capacity & Coverage


Ca

pa

cit

y

Coverage

Residence

SME

SOHO

Stadiums

Large

Enterprise

University

Campus

Dense

Urban

Large

Urban

Suburban

City

Core

Small

Town

Rural

The Market for DAS & Small Cells

Branch

Office

Traditional

DAS

Small

Cell

DAS

+

Small Cell


Customer profile includes:

• Willing to self-fund

• Wireless is business critical

• Have managed enterprise WiFi

• Uses ‘professional’ IT services

• Too small for Operator ROI

Some examples:

• Finance & law offices

• Educational institutions

• Medium size companies

• Fortune-1000 ‘satellite offices’

• MDUs & ‘green buildings’

* Commercial Buildings Energy Consumption Survey 2012, US Energy Information Agency

Market is around 200K buildings and 30% of the commercial floorspace in U.S.

The Small Building Market Size


• Large market need identified for SME locations lacking coverage but requiring low capacity – 2,500 to 10,000 m² but 30 – 50 m² per user.

• Insufficient traffic to attract a full IBS with Macro-/Micro-cell due to costs involved (BTS, E1 backhaul) vs. potential revenue

• In most cases a single Small Cell solution does not provide enough coverage

• However multiple Small Cells results in over –capacity and high cost and potentially complex installations (timing, handover, synchronisation)

• Multiple systems for each MNO or for each technology replicates infrastructure costs, construction disruption, and unsightly antennas

• Zinwave’s Wideband DAS plus Small Cells fills that gap

Market Need


• DAS plus Small Cell Architecture decouples capacity and coverage

• DAS provides flexible lowest cost coverage

• Small Cells required only for aggregate capacity

• Significant cost saving

• DAS wiring provides a “Neutral Host” environment for Small Cells

• Multiple Technologies – 2G GSM, 3G UMTS, 4G LTE

• Multi - operator solution for coverage

• No wiring changes for additions bands/channels

• Upgradeable to Micro-cells without rewiring

• Fibre based solution minimises building disruption

• DAS provides superior RF coverage

• Multicast and overlapped cells provide seamless coverage

• No handover requirements between Small Cells

• No Inter-cell interference

Why DAS ?


Wideband Architecture supports full Small Cell frequency capability

• Cellular & WiFi

• Capacity for all operators and multiple bands

• Multi – frequency ( 150MHz to 2.7GHz)

• Multi – protocol – FDD & TDD

• Improved Upgrade Capability

• “Neutral Host” on electronics as well as wiring

• Sectorization capability by software settings only (4 sectors max)

• Unique DAS ability to support “Network Listen”

• DAS can transmit and receive on the base station downlink frequencies simultaneously, because of wideband architecture.

• Supports Hand-out and Hand-in to the Macro

• Supports Frequency Co-ordination with Macro

Additional benefits of Zinwave DAS


• 4 Storey Rectangular Building w/central Elevator & Services shaft

• 1500 m² per floor

• Standard office construction

• No Basement

• Outside parking

• 4 separate businesses

• 1 occupying 2 floors

• 1 occupying 1 floor

• 2 sharing 1 floor

• All operators required in one part of building or another

• Layout consists of:

• I large conference room, 2 medium and 5 small

• I showroom, 1 cafeteria

• 150 employees and 30 -50 visitors at any time

• 3 Mobile Network Operators

Typical Deployment Scenario


Small Cell Only:

• 24 Small Cells

• 24 antenna sets or 8 sets of 3-Way combiners into omni antennas

• 24 Cat 5 cable runs to the comms room

• 1 24-port PoE LAN switch

• No expansion capability

• No network listen

• DAS + Small Cells:

• 8 DAS Remotes

• 8 antenna sets

• 8 cable runs to comms room (fiber & Cat5)

• 1 Unitivity DAS Hub

• 3 Small Cells

• 1 4-port LAN switch (no PoE)

• Sectorization by software settings only

• Expansion with no DAS or wiring changes

• Network listen can be activated

Typical Deployment Scenario


Zinwave and Small Cells

Recent Activity in UK


•Small Cell “Proof of Concept” – 3 UK operators involved• Vodafone, O2, EE

•Premises located in a business park in a low lying part of the town with very poor existing coverage

•Two floor premises of mixed office, storage and light electronics production.

• Approximately 60 employees with corporate and personal devices – typical UK business

•Corporate VF customer. Too small (£) for full BTS, too large in area for single Small Cell, multiple operators required

Proof of concept


• Surveys carried out and design formalised in one day

• One Zinwave Primary Hub plus 3 RUs

• Using existing internet backhaul, installed in existing IT Room

• Firewall reconfigured with DAS/Small Cells in DMZ

• No impact on mission critical connections

• One small cell per MNO for whole building

• One day install and setup

Quick to design and deploy


Ground floor – 45 x 43 m Mezzanine floor – 16 x 43 m

2 antennas on GF and 1 on Mezzanine


Typical coverage


RF Interconnection

POI for O2

Alcatel- Lucent

Small Cell

Zinwave

Service

Module

A

D

S

Zinwave

Primary Hub

KEY

S 2-way splitter

A Attenuator 16 dB (10 plus 6)

VA Variable attenuator 0-20 dB

D Duplexer

J N-N male jumper cable

POI connection for O2

J

J

J

J

JDirect

connection

VAJ

TX/RX +20 dBm

RX

DL

UL

Downlink 2100 MHZ Loss (dB)

Output

Power

(dBm)

MetroCell Output 20.0

Cable 1 19.0

Duplexer 1.5 17.5

Attenuator (2W) 16 1.5

Cable 1 0.5

Service Module Input 0.5

Link Budget

The Zinwave system has a wideband UL (and DL) path

so “network listen” of nearby DL signals can be provided across all bands for

frequency and location management


Transitional Coverage

•World HQ• West of Edinburgh

• Park setting with poor existing coverage

• Full IBS required when building refurbished and reoccupied

• launch requirements only an “incubator” unit prior to DAS completion

•Objective• Provide coverage for 02 & EE at opening without major rewiring at later date

• Minimize cost at start-up where only small capacity required

•Expected Outcome• DAS installation phased with Small Cells used for capacity in phase 1 with coverage

provided for incubator only. Higher capacity BTS’s and new backhaul deferred to Phase 2. Small cells to be redeployed elsewhere after transition

• Methodology to become standard for transitional deployments – better customer service at an affordable cost.


Incubator

• Coverage provided by 6 RU’s

off one secondary hub

• One RU on each level

• Two RU’s in the Egg

• One RU on 1st floor

landing overlooking the

Egg reception and main

entrance

• Equipment is a sub-set of the

final solution so no DAS

rework needed later

• Main Equipment Room

• installed 2 x Sm. Cells

with possible expansion

connected to DAS

Primary Hub

• Installation completed in 3

days

“Egg”

DAS Remote plus 2

antennas

Showing First Floor

Secondary Hub

location in IT room on

ground floor

Initial Small Cell + DAS Plan


• DAS and Small Cells together open 30% of Commercial Office Space

• Cost effective below 10,000 m²

• A new market totally underserved – SME & Branch Offices

• Key to wireless evolution and the “Unwired Office” for a significant proportion of the business community

• Zinwave DAS with Small Cells provides a “Neutral Host” environment

• Flexible Coverage and Scalable Capacity

• Inherently Multi – Operator

• Inherently Multi - Technology

• Truly “Future Proof”

• Uncompromised RF performance

Summary

small cells and das - cambridge wireless€¦ · alcatel- lucent small cell zinwave service module...

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