The document discusses challenges with deploying enterprise small cells, particularly related to the high costs of deploying external GPS antennas for synchronization. It introduces the Integrated GNSS Master (IGM), described as the world's first small form factor device that integrates a GNSS antenna and receiver. This innovation aims to significantly reduce deployment costs for indoor small cells by eliminating the need for an external GPS antenna and associated cabling. The IGM connects to small cells using Ethernet cabling instead of coaxial cable, and can be powered over Ethernet. It is presented as a more cost-effective synchronization solution than traditional GPS-disciplined grandmasters.

1. © 2015 Microsemi Corporation. 1
Power Matters.TM
Overcoming high deployment costs
of synchronizing Enterprise Small
Cells
Eric Colard

2. Power Matters.TM 2© 2015 Microsemi Corporation.
§ Problem to Solve
§ Innovation & Disruption
§ Solution Details
§ Q&A
Agenda

3. Power Matters.TM 3© 2015 Microsemi Corporation.
§ 80% traffic indoor
§ our focus : delivering precise timing to indoor enterprise 3G/
LTE/LTE-A small cells cost effectively
Market Driver

4. Power Matters.TM 4© 2015 Microsemi Corporation.
§ Most small cells being deployed are LTE
§ Most small cells being deployed are indoor
§ LTE requires very stringent time/phase : 1.5µs
§ Phase is required even for LTE FDD because of interference
issues. Any type of coordination leads to phase requirement
(eICIC, CoMP, etc)
§ Options
• GNSS : indoor hurdles, GNSS & Radio signals & site
survey considerations
• NTP : not adequate (only ok for residential)
• Macro sniff : not always usable when coverage issue
• PTP 1588 : deployment considerations
Problem to Solve

5. Power Matters.TM 5© 2015 Microsemi Corporation.
Key Synchronization Requirements
§ Small Cells require accurate timing
§ Timing is dependent on GNSS
Critical Problems
Challenges for Small Cell Deployment
High Cost of GPS antenna cabling
Roof access/rental fees
Installation Costs through several
floors
Operators requesting less
devices to deploy and manage –
combining functions into single
device
Offices with Small Cell
1588 Grandmaster
in Server Room
GNSS Antenna

6. Power Matters.TM 6© 2015 Microsemi Corporation.
Traditional model - CAPEX & OPEX
CAPEX
§ PTP Grandmaster cost
§ GPS Antenna
• Permits
• Space on roof
• Surge / Lightning protection
§ L1 coax cabling
• Amplifiers
• Splitters
• One time installation cost
OPEX
§ Power, cooling, cage space
§ Roof rental for Antenna
§ L1 cable run rental costs
§ Monitoring & Management

7. Power Matters.TM 7© 2015 Microsemi Corporation.
Problem Statement
• Customers complaining of poor
voice coverage in building
• Lobby & Meeting Rooms at 5th
Floor
• 16 Floor of Guest rooms
• Other floors are apartments
• GPS required
• How to get signal to all small
cells ?

8. Power Matters.TM 8© 2015 Microsemi Corporation.
Creativity and …luck…
Small outdoor patio
at 5th floor for GPS
Antenna instead of
rooftop
No permit needed as
not visible from
public

9. Power Matters.TM 9© 2015 Microsemi Corporation.
GNSS Cable issue
Size difference
between GPS
conduit (white)
and Ethernet
cable (orange)
Lots of work and cost to bring GPS
Cable/Conduit from 5th Floor terrace
through building to 5th floor server
cabinet
Most use cases would have to go
all the way to rooftop

10. Power Matters.TM 10© 2015 Microsemi Corporation.
Other Floors set up
Each floor has 1 small cell
Small cell secured in closet, not visible
from customers
Each floor has 4 or 5 antennas
Antenna visible from public on ceiling next
to smoke detector
Each antenna connected to floor small cell
via coax

11. Power Matters.TM 11© 2015 Microsemi Corporation.
In the context of Enterprise Small Cell deployments:
How significant are costs for external GPS antenna?
Audience Poll Question
Insignificant 6%
Sometimes important 15%
Moderately important 34%
Extremely important 39%
Don’t know 7%

12. Power Matters.TM 12© 2015 Microsemi Corporation.
Market Requirements
Small Form
Factor
Multiple
Functions in one
device
Cost effective
compared to
small cells
Plug & Play
Solve GNSS
Cabling
deployment costs
Solve Indoor
GNSS operations

13. Power Matters.TM 13© 2015 Microsemi Corporation.
§ “Integrated GNSS Master” An innovative solution and world’s
first that will reduce the LTE indoor small cell deployment
costs.
Key message
Innovation
Market Disruption
Integrated GNSS Master
Reduce
Deployment Costs

14. Power Matters.TM 14© 2015 Microsemi Corporation.
IGM-1100i
Disruptive Integrated GNSS Master Solution
Deployed Indoors
Integration, Form Factor, Cost
Ethernet cable
• No L1 coax cable installation issues
Powered over Ethernet
• Reduces cost
• Widest portfolio of PoE solutions from the inventors of PoE
Plug-N-Play Configuration
Common management for GNSS antennae and
PoE

15. Power Matters.TM 15© 2015 Microsemi Corporation.
Capex Average Comparison
Typical
scenario
20 floors
Typical Scenario Integrated GNSS Master Traditional PTP GM
# Devices 2 1
Cost of Devices around $2,900 includes GNSS
Antenna & Receiver
Around $1,000 + cost of
Antenna + Cost of Receiver
+ Cabling
Deployment Costs
associated to GNSS
antenna connection
Very Low, similar to Wifi access
point
North America : $15K-$25K
Europe : $10K-$25K
APAC : up to $65K
(average, depends on
building and geography)Lower Deployment Cost is the key differentiation
Cable Installation
Permits, Roof Rentals
Power surge, Lightning protection
L1 coax cabling
Amplifiers,Splitters
Power supply, Fireproof wall permit

16. Power Matters.TM 16© 2015 Microsemi Corporation.
Integration
1588 GM
GNSS
Receiver
GNSS Antenna
Management
Auto-Config
Alarms & Traps
TimePictra for
PoE too
Best of Breed
Sync
1588 Freq &
phase
L2 Multicast
L3 Unicast
Enhanced
Indoor
Capabilities
A-GNSS
Algorithm
Key Features & Functions
GPS & Glonass

17. Power Matters.TM 17© 2015 Microsemi Corporation.
IGM – Unique Indoor Capabilities
Enhanced
Clock
Control
Algorithm
Advanced
Thermal
Control
Algorithm
PTP Input
(later
release)
Extension of BestTime™
Supports longer sampling windows to mitigate timing
error in difficult indoor environments
Provides timekeeping bridging during intermittent
outages.
Mitigates Timing Error
associated with PTP packet
latency variation, asymmetry
and outages
Stabilizes mini-OCXO with
active thermal control to
behave like OCXO
Multiple Patents
Mitigates Timing Errors associated with satellite
propagation, outages and interference

18. Power Matters.TM 18© 2015 Microsemi Corporation.
IGM-1100i Product Dimensions

19. Power Matters.TM 19© 2015 Microsemi Corporation.
Typical deployment
Offices with Microsemi IGN Solution
Offices with Small Cell
Server Room
No GPS
Needed
Integrated GNSS Master

20. Power Matters.TM 20© 2015 Microsemi Corporation.
Data & Power
Several units to provide Fail Over
50-75% load compared to scalability potential
Small Cell slaves use BMCA to switch
Redundancy
Offices with Microsemi IGN Solution
Offices with Small Cell
Server Room
No GPS
Needed
Integrated GNSS Master

21. Power Matters.TM 21© 2015 Microsemi Corporation.
§ Scheme for IGM needs to seamlessly fit within small cell
deployment strategy by operator
§ Auto-configuration and network interactions mimic processes
and systems used by small cells
• TR069 server, DNS server, etc
§ TimePictra used for alarms and SNMP traps
Management

22. Power Matters.TM 22© 2015 Microsemi Corporation.
AGGREGATIONCORE
Portfolio addresses end to end timing for a
HetNet network rollout
ACCESS
100s to 1000s of clients
Grandmaster
Central Office
TDM, PTP, Sync-E
8 to 64 clients
GM or BC
Indoor / Outdoor
TDM, PTP, Sync-E
Centralized
Grandmaster Clocks
Edge Master Clocks
Indoor, Small Cell
mini-GM Clocks
4-8 Client mini-GM
Antenna, Indoor
PTP, Sync-E
TimePictra End to End Synchronization Network Management
SSU 2000
TimeProvider® 2300
TimeProvider® 2700
TimeProvider® 5000
Connecting IGM to Portfolio in Operator Network for
GNSS backup & frequency input & reliability

23. Power Matters.TM 23© 2015 Microsemi Corporation.
Summary
IGM-1100i
world’s first
reduce the LTE small
cell deployment costs
Innovation
Market Disruption
No
Outdoor
GNSS
Antenna
Integrated GNSS Master is the world’s first best in class1588
GrandMaster with a GNSS antenna and receiver in a small form
factor optimized for indoor small cells.
Integrated GNSS Master is plug & play, easily installs and configures
and enables for flexibility such as PoE.
Integrated GNSS Master enables GNSS deployment cost reductions

24. Power Matters.TM 24© 2015 Microsemi Corporation.
Q&A
Eric Colard,
Director, Emerging Line of Business,
Microsemi Frequency and Time Division
eric.colard@microsemi.com

25. Power Matters.TM 25© 2015 Microsemi Corporation.
§ Microsemi website
§ http://www.microsemi.com/products/timing-synchronization-
systems/time-frequency-distribution/gnss
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