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1 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

Philip Sorrells – VP Strategic Marketing - Wireless

Tried and Tested Best Practices for the

Implementation of LTE

2 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

• 100M subscribers – 5.9B

to go!!

• Acceptance Cycle Time

• Global Evolution

3 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

What Limits LTE???

• Noise!!!

• Increase radiated power

• Small handover areas (less

than 20% design goal)

• Cell Edge

Required SNIR for Full Data Rate

(Rel-99)

Close to the radio users

experience better data rates.

The challenge is managing noise

so users at the CELL EDGE have

a Great Experience

4 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

Five Key Strategies

• Noise Management

• RF Sector Control

• Network Modernization

• Backhaul

• In Building and Venue

5 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

Considerations Impacting Planning

•Signal Strength vs SNR

•Grid lines tend to devolve

•Ideal Azimuths may vary

•Performance Specs

•Age

5

Weight and

Wind

Loading

Complexity

Reliability

6 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

Shannon’s Law

The focus of future technology enhancements should be on improving system performance aspects that improve and maximize the experienced SNRs in the system.

Peter Rysavy of Rysavy Research,

Data Capabilities: GPRS to

HSDPA and Beyond, 3G Americas,

September 2005

2G – Voice

4G – Data

7 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

Co-channel Interference Adjacent channel Interference

Find and Eliminate Interference

8 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

Avoid PIM (Passive Intermodulation)

• “Unwanted” signals created by “nonlinearities”

• • High Quality Equipment

• Careful Frequency Planning

• Considerate Installation

Clear Sky

-123 dBm (-166 dBc)

Person nearby with phone,

keys, adapters, badge

-94 dBm (-137 dBc)

Point At Fence

-102 dBm (-145 dBc)

9 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

Initial 90 Deg Panel*

Initial 65 Deg Panel*

Example 65 Deg LP*

Interference Reduction - Antenna Selection

9 TTS Proprietary &

Confidential - 2013

* Typical horizontal BW antenna

patterns from initial deployments

of GSM/UMTS

Technology

Permitted

Cell

Overlap

Comments

GSM 9-21 Depended on # of BCCH/TCH channels available for

use

UMTS/CDMA 3-4 Soft Handover (Active Set Size)

LTE 2-3 1 Ideally (No Soft Handover)

Increased Cell Overlap reduces the SCINR (Quality) of the system

and thus throughput experience by the end user!

10 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

• Boresite Pointing Adjustment • Beam Tilting

Network optimization

Reducing site-to-site interference

0 1

2 3

4 5

6 7 8

Downtilt ( °) 0

1

2 3

4 5

6 7 8

Downtilt ( °)

11 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

Sector Sculpting

• Faster Roll off = Less interference

• More Sectors – Better Density

• Extends value of existing cells

• Fast and easy deployment

5-Beam models available in

698–894 MHz or 1710–2170 MHz

2x9-Beam model available in

1710–2170 MHz

5-BEAM 9-BEAM

Sector Split

Six-Sector Site

12 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

The Challenge – Overcoming Complexity

Network Modernization

• Multiple spectrum bands

• Multiple Technologies

• Protecting your current system

• Future Ready

• Time to market

13 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

Co Siting - Ideally, any solution should……

• Minimize weight, wind load on

already straining towers and roofs

• Provide the performance required to

justify the investment

• Reduce risks of “craft’ related

installation errors

• Be fast and easy to upgrade and

maintain

• Be repeatable and scalable

14 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

Co Siting– Multiband combining

2100

Twin

Diplexer

Wideband

DualPol®

BSA

1800

GSM

+ UMTS

1900

850

AWS

2300

700

Quad

Triplexer UltraBand™

BSA

Value proposition

Zoning friendly

Reduced wind load

Essential on slim

profile monopoles

Can save CAPEX

2 x 4

LTE

15 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

Co Siting - RRH

• Pre-assembled

• Standardized

• Flexible

• Maintainable

• Separate Optimized Antenna

Radio Independent Approach

16 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

A Success Story

17 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

Five Key Strategies

• Noise Management

• RF Sector Control

• Network Modernization

• Backhaul

• In Building and Venue

18 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

The shape of things to come…

19 PRIVATE AND CONFIDENTIAL © 2013 CommScope, Inc

Understanding the RF Path

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• Distributed Antenna Systems

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