The Radio Club of America, Inc. Technical Symposium, … · UMTS/WCDMA: Ec/Io, RSCP and RSSI LTE:...

The Radio Club of America, Inc.

Technical Symposium

New York, NY Distributed Antenna Systems for Luxury

Residential and Office Buildings in Major

Urban Areas

Presentation by

Robert Lopez, PE - RCC Consultants, Inc.

November 22, 2014

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Topics • Why a DAS, a BDA, Small Cell, a Femto

Cell necessary?

• Examples of Different DAS Architectures – Passive

– Active

– Hybrid

– Fiber to the Antenna (FTTA)

– Small Cells

– Bi-Directional Amplifiers (BDA)

– VoWiFi (say whaaaat?!)

• Typical Design Configurations & Output

• Measurements / KPIs

Example Configuration for

Indoor Coverage Solutions

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Example Passive DAS

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Graphic source: Indoor Radio Planning by Morten Tolstrup

Example Active DAS

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Graphic source: Indoor Radio Planning by Morten Tolstrup

Hybrid DAS

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Graphic source: Indoor Radio Planning by Morten Tolstrup

LTE eNB MIMO DAS

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Graphic source: Indoor Radio Planning by Morten Tolstrup

Typical In-Door DAS

• External off-air signal

source pointing to

“donor” site

• Head-End RF to Fiber

Conversion

• Multi-band Remote

Amplifiers

• Plenum rated coaxial

cables

• Distribution Antennas

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Consultants, Inc.

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Example Components

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Example FTTA DAS

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ICU= Interconnect Unit

RAU= Remote Access Unit

Example Head-end Equipment

• 11 Zones

• 22 Sectors

• +200 MIMO antennas

• 1.8 Million Sq. Ft.

• CommScope ION B

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Example Remote Amplifiers

for MIMO Antenna Configuration and

LTE eNB’s

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Consultants, Inc.

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Remote Amplifiers IDF installation

for a MIMO configuration. LTE eNB Base Stations

Example Multi-Carrier Head End Design

for: AT&T, Verizon, T-Mobile and Sprint

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Example Corning Mobile Access

Head End Design: CDMA, UMTS and LTE

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Typical Building Floor MIMO

Antenna System Diagram

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LTE Reference Signal Receive

Power (RSRP) Coverage “Heat Map”

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Typical Measurement

Equipment Capabilities for DAS

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Typical Measurement Equipment

Capabilities for DAS

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Example Test Equipment

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Multi-Carrier Multi-

Band Measurement

Systems

LTE / CDMA / UMTS / HSPA / GSM

Example Multiple WSP / Multiband

Benchmarking Test Case

• Developer: Toll Brothers

Architect: Christian de

Portzamparc

• The structure is made up of

three imbedded towers

encircled in glass. It consists

of 365 units, 42 stories and

stands 476 feet high on the

corner of 28th street and Park

Avenue. {475,000 sq. ft.}

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Consultants, Inc.

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Benchmark Test Planning

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14 Access technology & Band Combinations

CDMA/EVDO: Ec/Io, RSCP and RSSI

UMTS/WCDMA: Ec/Io, RSCP and RSSI

LTE: RSRP, RSRQ and RSSI

3 Key Performance Indicators (KPI’s) Technology

Number of Floors= 21 882 Pages!

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High Level Summary

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Summary

• There are different design options for each

building type and venue size:

– DAS, Off-air BDAs, Small Cells, Femto Cells

• Benchmarking is a key upfront exercise to

ensure the final design minimizes

interference, maximizes quality of service,

improves end-user experience and

provides for macro network traffic off-load.

• There’s little room for optimization after a

DAS is installed November 22, 2014 Rob Lopez, PE - RCC Consultants, Inc. 25