ACUTA and HetNet Forum: Technology Advances in Cellular ...

ACUTA and HetNet Forum: Technology

Advances in Cellular: What LTE,

MIMO and Small Cells Mean on

Campus

Derrick Smith Raymond Weaver Brian Benjamin

AT&T Antenna Advanced RF Technologies Crown Castle

Solutions Group

Speakers

© 2011 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property.0

LTE and HetNet: The Wireless Landscape J. Derrick Smith

National Technical Standards Manager – DAS and Indoor Small Cells

AT&T Antenna Solutions Group

AT&T Proprietary (Internal Use Only) Not for use or disclosure outside the AT&T companies except under written agreement


The Wireless Landscape: Problem Statement

4 AT&T Proprietary (Internal Use Only) Not for use or disclosure outside the AT&T companies except under written agreement

Problem

1. More people are utilizing data services over a mobile broadband connection

2. Those users are transitioning to more advanced and sophisticated smartphones and tablets

3. Smartphone generates 20x traffic of feature phone; tablet generates 100x as much

4. By 2015, smartphone data generated expected to increase 18x

5. 70% of usage occurs indoors

Source: Alcatel-Lucent Metro Cells: A cost-effective option for meeting growing capacity demands


The Wireless Landscape: AT&T is Building the World’s Premier Network



The Wireless Landscape: 4G LTE & LTE Advanced


Incorporates a series of tools to boost network intelligence and performance including

– SON – Carrier Aggregation – High-Order MIMO – Heterogeneous Networks


The Wireless Landscape: Carrier Aggregation



The Wireless Landscape: Densification & Small Cells – The Heterogeneous Network


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ADRF CONFIDENTIAL

Campus Coverage Requirements

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Heterogeneous Solution Diverse Requirements

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ADRF CONFIDENTIAL

Het Net Concept

Small Cell Repeater

Indoor DAS Outdoor DAS Head End

BTS Hotel

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ADRF CONFIDENTIAL

Fiber DAS

Head End

Remote Locations

Serving Antenna Donor

Antenna

oDAS

iDAS

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ADRF CONFIDENTIAL

Repeater Fed Passive DAS

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ADRF CONFIDENTIAL

Small Cell

Backhaul

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ADRF CONFIDENTIAL

BTS Hotel – Indoor DAS

Backhaul

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ADRF CONFIDENTIAL

Build Strategy

Phase 1

Phase 2 Phase 3

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ADRF CONFIDENTIAL

2G/3G -> 3G/4G Transition

2G

3G

4G

2G

3G

4G

2G

3G

4G

BTS Head End Remote

Upgrade Active Components

Infrastructure in Place

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ADRF CONFIDENTIAL

MIMO Considerations

Layer One

Layer Two Service

MIMO 0

Service

MIMO 1

Increased Data Rates – Additional Infrastructure Required

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ADRF CONFIDENTIAL

Carrier Coordination

Coverage Acceptable Solution Required Future Phase

Carrier Site

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ADRF CONFIDENTIAL

FGCU – Growth Plan

Head End/BTS

Initial Scope

Test -> Prioritize

Planned Scope

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ADRF CONFIDENTIAL

FGCU – First Building and Head End Location

Increased Data Rates – Additional Infrastructure Required

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ADRF CONFIDENTIAL

DAS & Small Cell Summary

Band Remote (ADX-R)

Engage Carriers Early

Test and Prioritize

Design and Build for Growth

Choose Vendors Carefully

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Wireless Demand at Universities

Growing Demand and Expectations

Students and faculty depend on mobile devices

Parents need to stay in touch with students

Attendees at sporting and other events demand wireless connections

Universities rely heavily on web-based content and delivery of on-line

courses

Universal campus demand in classrooms, residence halls, libraries,

and stadiums

Growing Concerns

Students, parents, and university staff view poor wireless availability as

a major security concern

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Coverage and Capacity

Traditional methods to provide coverage and capacity often ineffective

― Dense building materials and older construction

― Campus topography

― Mobile user crowds at sporting and other events

― Large complex facility footprints

Aesthetics and Budget Constraints

Preserving valuable campus real estate with an optimal solution

Limited network budget resources

University Wireless Network Challenges

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DAS Solution/StrategyOptions

• Build Your Own

– Capital intensive

– Still need carrier involvement and commitment to activate

networks

• Carrier Direct Relationships/Solutions

– Manage multiple relationships and projects or

– One carrier is the lead and manages all others

• 3rd Party Neutral Host

– Works with all carriers on university’s behalf

– Some have the ability to manage macro and DAS environments

on campus for the university

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DAS Benefits for Universities

Coverage, Capacity, Aesthetics

Campus-wide wireless coverage and capacity

Ubiquitous wireless availability via multi carrier host

Networks scale-up building-by-building as demand increases

Satisfy students, faculty, alumni and staff expectations

A competitive edge for attracting top students and faculty

Equipment blends into existing campus landscape

Streamlined Operations

Insure campus-wide efficiency of staff operations

Attractive Financial Terms

New Revenue Streams

No build-out costs

No day to day management expense

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Requirements for the University

• Availability of Fiber and Conduit, new or existing, to key

locations

• Dedicated Hub Location

– Central to system and target coverage areas

– ~2,000 sq. ft of space

– Easy access to utilities demark

• 24/7/365 access to hub and service locations

• Support and assistance with local regulatory agencies.

Goals • Solve for carrier coverage and capacity offload needs

• Balance aesthetics and economics in developing the most effective solution that

will drive carrier participation

Contract Final

Design Carrier

contract Install Lease Up

Project Process Overview:

Design Methodology

Approach: • Consider carrier direction on coverage

and capacity needs

• Consider direction from the University on coverage expectations and priorities

• Targeted coverage of defined coverage areas

• Accommodate all FCC licensed frequencies and technologies: CDMA, GSM, iDEN, LTE, PCS and WiMax

Next Steps:

• Obtain RF requirements from carriers

• Conduct benchmark signal testing

• Create preliminary design and obtain carrier approval

• Perform CW tests to validate design

• Update design as needed (based on test results) and secure final carriers approval

Project Implementation

Locations of HUB, Antennas and Nodes: • Will work with the University to develop a DAS

that utilizes both new and/or existing structures

• Sensitive to the aesthetic concerns throughout the campus

• Visual simulations of antenna and equipment locations will be presented to the University for approval

• Engineered construction drawings will be developed, local jurisdictional approvals and building permits will be obtained.

Fiber Design: • Based on meeting all of the WSPs RF link Budget

requirements • Fiber distance limitation is 10 miles • Amount of fiber required will be based on the

final design

• Work with the University to utilize existing fiber or install new fiber to meet the DAS requirements.

Project Management: • Provide Construction Management and Project Management Services including project updates, schedules and

progress meetings • Equipment Procurement, Installation and Commissioning • Carrier Integrations

Tracy Ford [email protected]

Derrick Smith [email protected]

Raymond Weaver [email protected]

Brian Benjamin [email protected]

Contact Information

mailto:[email protected]




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