E pmp for public presentation feb 27 2015

Who Is Cambium Networks?
Industry leader in Point-to-Multipoint and Point-to-
Point IP Wireless Broadband Solutions
Uniquely positioned to deliver breakthrough
Wireless Solutions globally
More than 4.0 million nodes shipped totaling over
$1B to thousands of networks in over 150 countries
Independent company since 2011
(Formerly part of Motorola Solutions)
Financially healthy and profitable company with a
strong equity investor, Vector Capital
2Copyright 2015 Cambium Networks, Ltd. All rights reserved.

Orthogon Point-to-Point (PTP)
Access and Backhaul Links
Cambium Networks Solutions
• Market leader in unlicensed
Cognitive Radio Technology
• Spectrally agile using Dynamic
Spectrum Optimization™
• Used for the most challenging
links globally!
• Market leader in unlicensed &
licensed PMP
• Ideal for enterprise access
• Voice, video and data capable
Canopy Point-to-Multipoint
(PMP)
Access Networks
• The new Standard in
Wireless Broadband
• Affordable Scalability
and Reliability
Copyright 2015 Cambium Networks, Ltd. All rights reserved. 3

Goals for the ePMP Product
• Priced to help your business grow:
– Low priced CPE
– Access Point equipment with <= 6 month payback for <= 10 low ARPU subs
• Features and Capabilities:
– Each Radio can be AP, SM, PTP - 5GHz ver covers all sub-bands
– 2x2 MIMO in 20 / 40 MHz channels
– Incorporating Signature Capabilities of Cambium’s PMP Solutions
 GPS Synchronized – to allow for frequency reuse
 High Scalability and Performance Consistency
 eFortify – to maintain performance in external interference
 Effective QoS for support of prioritized data, voice and video
 eCommand – to help Plan, Provision and Monitor your Network
 Designed for Reliability following the Cambium Quality Process

ePMP Solution Overview
GPS Synchronized Radio Unsynchronized Radios
Sector Antennas
90 degree Sector
120 degree Sector 6
High Performance
GPS-Synchronized MAC
• Precision Timing
• Dynamic Tx Range w/ AutoTx Power Control
• 3 Level QoS w/ Auto VoIP Prioritization
SW Platform including GUI
& Element Management
System
Reflector Dish for
Integrated Radios
Copyright 2015 Cambium Networks, Ltd. All rights reserved.

Deployment Configurations
7
Synchronized & Unsynchronized
PTP Links
Unsynchronized
PTP Links
Synchronized & Unsynchronized PMP

Radio Interconnections
RF Connections
Gigabit
Ethernet
GPS
Antenna
Connector
Ground Lug
(optional)
Auxiliary
100BaseT
Ethernet
Main
100BaseT
Ethernet
GPS Synchronized
Connectorized Radio
Unsynchronized
Radios

Sector Antennas
9
Slot for GPS Antenna (5 GHz)
Removable Protective Cover
Grounding and Mechanical
Connection via screw
Adjustable Brackets

ePMP Reflector Dish
• Designed for Integrated Radio
• Same Dish works for 2.4 GHz and 5 GHz
• Increases Aggregate Gain to 19 dBi
– Adds 6 dBi of gain for 5 GHz
– Adds 7 dBi of gain for 2.4 GHz

ePMP Force
• ePMP Force is a bundling of the Conn Unsyc Radio
(CSM) and a 25 dBi Dish.
– Force 100
 Initial build fully committed and distributed
 Field deployments underway
– Force 110
 Updates to Force 100 design
 Similar performance specifications – 25 dBi Gain
o Lighter
o Easier to assemble
o Reduced shipping costs
 Production Underway
 Initial Shipments at end of October

ePMP Force 110 PTP
ePMP Optimized for High Performance PTP Operation:
– Up to 220 Mbps of real user throughput
– Latency < 2 ms
– Long Range with 25 dBi dish antenna
– High Performance Processor for maximum performance
– 802.3af compliant Gigabit Ethernet port

Solution Specifications

ePMP Key Differentiating Features
• GPS Synchronized provides for frequency reuse
• High Scalability and Performance Consistency
• eFortify – to maintain performance in external interference
• Effective QoS for support of prioritized data, voice and video
• eCommand – to help Plan, Provision and Monitor your Network
• Designed for Reliability per the Cambium Quality Process

How Does GPS Synchronization Work?
• Synchronized TDD Frames
– Fixed DL / UL ratios , precision Tx timing
• Automatic AP control of SM Tx Power
– SM Tx Pwr set to Achieve same optimal Target
Receive Level at AP
• Sector Antennas with High (> 30 dB) F/B Ratio
16
downlink downlinkuplink uplink

What Does it Do For You?
17
Within A
Sectorized
Site
Across A
Contiguous
Network
One Site with
2 Channels
The Entire
Network with
4 Channels

GPS Synchronization White Paper

Scalable and Consistent Performance:
120 SMs per Access Point

How Does ePMP Delivery Highly Scalable
and Consistent Performance?
ePMP MAC Protocol Efficiency
“Air Fairness” Adaptive Scheduler
20
Frequency Reuse and No Self-Interference

• Efficient Use of RF Capacity
• Allows for High SM Scalability
• Allows for Consistent Performance even in High
Interference Environments
21
Single Message
Polls and Schedules
Multiple SMs on Uplink
Data from Multiple
SMs is “tightly packed”
Due to use of Uplink
Transmit Timing Advance
DL UL

Air Fairness Adaptive Scheduler
• “Air Fairness” Scheduler Prevents a few “Bad”
SMs from dragging down the entire Access
Point
• Resource Allocations based on Time, not
Throughput
22
a b c d e f a b c d e f
DL UL
a b c d e f a b c d e f
DL UL
a b c d e f

eFortify
High Performance in High
Interference Environments

eFortify – Recognize and React
• You are not Alone out there
• Spectrum is Congested
• GPS Sync: Provides a Solid Foundation
on which to build a Network
• eFortify:
– Builds on GPS Sync
– By providing higher performance
operation in the face of External
Interference
– Maintains Consistent Latency

eFortify – How Does it Work?
“Air Fairness” Adaptive Scheduler
Interference Optimized Rate Adapt Algorithms

Interference Optimized Rate Adapt
Algorithms
• Adaptive Modulation Algorithms optimized to
address the bursty nature of Interference
• Making the right choice between error recovery by
Retransmissions or down-shifting modulations

Real Advantages in High Interference
0
10
20
30
40
50
60
70
80
90
100
LOW MODERATE HIGH SEVERE
Throughput-Mbps
Interference Levels
ePMP R1.X
ePMP R2.0
with
eFortify
Competitive
Offerings

Quality of Service (QoS)
ePMP Supports 3 Priority Levels
1. Voice Priority (Always Highest when Enabled)
2. High Priority
3. Low Priority
• Unicast Traffic assigned to a priority level by L2/L3 packet markings
• Broadcast/Multicast Traffic can be configured to be High or Low Priority
• Data is scheduled for OTA Transmission according to its priority
Prioritization Can be Altered by SM Priority
SM Priority
• Normal - No Change to Data Priority
• High - All non-Voice Ingress (Uplink) Traffic Treated as High Priority
• Low - All non-Voice Ingress (Uplink) Traffic Treated as Low Priority
L2 Markings: VLAN, CoS, EtherType, MAC / L3 Markings: IP, DSCP

eCommand – Plan, Provision and Monitor
• A suite of management tools to plan, provision and
monitor the ePMP network
• Providing operators with the ability to confidently
deploy high performance networks, with greater
visibility and control
• An Area of Focus for future Software Enhancements
for the ePMP Portfolio

Estimate Performance: ePMP Capacity Planner
• Excel-based Tool that provides
a details about the
performance you can expect
from the ePMP.
• Estimate the throughput and
capacity that an ePMP Access
Point can provide based on:
– Distance of SMs from the AP
– Transmit power levels
– Antenna gains and
– Expected level of interference
in the environment.
31
50%
Max Cell Size (miles) 10 Max %
25% 100%
% STAs with Panel 25% 100% 35.9 Mbps
% STAs with Dish 25% 100% 23.0 Mbps
% 3rd party conn STAs 25% 100% 58.9 Mbps
5
15
Average
Distributio
n
DL
Users/sector
UL
Users/sector
Total
Users/sector
3.0 Mbps 3.0 Mbps 25%
5.0 Mbps 5.0 Mbps 50%
10.0 Mbps 10.0 Mbps 20%
20.0 Mbps 20.0 Mbps 5%
Average
Distributio
n
DL
Users/sector
UL
Users/sector
Total
Users/sector
4.0 Mbps 1.0 Mbps 10%
15.0 Mbps 5.0 Mbps 20%
20.0 Mbps 10.0 Mbps 50%
30.0 Mbps 15.0 Mbps 20%
DL
Users/sector
UL
Users/sector
Total
Users/sector
Enterprise 50%
Residential 50%
Downlink %
Avg DL capacity
Ent. Oversubscription rate
Avg UL capacity
% Integrated STAs
24 2412.83 Mbps 7.68 Mbps 28
19.40 Mbps 9.10 Mbps 27 37 27
Average DL
Throughput/user
Average UL
Throughput/user
ePMP NETWORK PLANNER
Cambium Networks confidential, not commercially binding
NETWORK CONFIGURATION
Blended Monthly Service Plan C
Res. Oversubscription rate
Avg Tot capacity
Enterprise Monthly Service Plan A
Downlink Uplink
Average DL
Throughput/user
Average UL
Throughput/user
Residential Monthly Service Plan B
Downlink Uplink
18 186.25 Mbps 6.25 Mbps 28
Average DL
Throughput/user
Average UL
Throughput/user
STAantennatype distribution
Dish
Connectorized
Panel
Integrated
Download the Tool and User Guide from:
https://support.cambiumnetworks.com/files/epmp

Plan your Network with LINKPlanner
• Easily Import Location
Information of AP and
SM Modules
• View Path Profiles
• Adjust Configuration and
Optimize

Estimate Capacity with
Export to Capacity
Planner
33
Create Bill of
Materials
Generate Proposals

Monitor with eDetect
• A new tool that runs with no impact to normal operation
• Measures the level of co-channel interference that each Radio
detects
• Provides “Stop Light” Status:
– Green: C/I > 25 dB
– Yellow: 10 dB < C/I < 25 dB
– Red: C/I < 10 dB
• Provides a quick Visual Indication of the potential trouble
spots in the network

Monitor with CNS – Cambium Networks Services
• Device Discovery and Monitoring
• Software Upgrade
• Device Configuration

Cambium Reliability Recipe
37
Ingredient ePMP
Design with Margin
High Quality Components
ESD / Surge Protection
Robust Enclosure
Robust Design Verification
Reliability Testing (ALT)
High Quality Manufacturing

Serbian Operator Replaces
Many PTP Links with ePMP PMP Solution
• Service Provider with 100K subscribers
(~26K on wireless) covering most of Serbia
• Developed an End to End IPTV Solution
• Looking to replace their UBNT wireless
solution with one that could scale and
support the QoS and capacity required for
IPTV
• Selected ePMP for:
– Ability to support high subscriber density with
fewer Base Stations
– Ability to deliver needed capacity
– Support for true over the air QoS
39
THIS
TO
From
THIS
THIS
&

Russian Service Provider Chooses ePMP for
wide band 5 GHz Support
• Russian Service Provider
Focusing on Enterprise
Customers
• Require High Quality, Reliable
Solution
• Chose ePMP due to:
– Support of “Russian” 5 GHz
Frequency Bands (5.1 and 5.9
GHz)
– GPS Sync with excellent
performance
– Effective QoS to met rigorous
SLAs

• WISP was using Competitive
PMP
• Average AP Sector
supported:
– 30 Mbps of throughput
– 20 – 30 SM per AP
• WISP began deploying ePMP
• His ePMP AP Sectors provide:
– 65 Mbps of throughput
– He has deployed several AP
with more than 80 SMs
41
Russian WISP increases
Capacity 2X+

Urban CCTV Network with over 600 Cameras
• Budapest, Hungary City
Centre:
– High concentration of cameras
– 5 GHz Spectrum is Congested
• Key Attributes of ePMP that
made it the solution of choice:
– Scalability up to large number
of cameras
– Low Cost and small form factor
– eFortify to provide consistent
performance in interference
– Flexible Configuration Options:
 Point to Multi-Point
 Linear Point to Point

High Speed, Long Range Links with ePMP
• Service Provider in Spain deploys 58 km link with ePMP Radio
• Achieves 150 - 180 Mbps

• Silo Wireless, Ontario, Canada used a
mix of Cambium PMP and competing
low cost solutions for access
• Needed a technology upgrade for their
low cost solution
• Chose ePMP due to:
– GPS Sync and Frequency Reuse
– Effective QoS to allow for Voice
Communications
– High Performance even under
conditions of external interference
44
Migrating Competing Low Cost Solutions to
ePMP

• Seattle, Washington, USA
• Economic Development Zone
• ePMP Delivers Affordable
Security
45
Reliable CCTV on a Small Budget

• Sao Paolo, Brazil
• Cost Effective Bandwidth Upgrade to keep High Value Customers
• Heavy VoIP and Video Streaming Usage
• Fast, Efficient Deployment to Minimize Impact to Customers
46
Technology Upgrade to
Meet Increasing Bandwidth Demands

• Miskolc, Hungary
• High Subscriber Density in Town Center
• Existing Solution had reached its limit at 20 subs / AP
• ePMP Scales to over 50 subs / AP with consistent performance
47
2X the Subscriber Density of Competing
Solutions means Removing Barriers to Growth

Summary
• ePMP is a new family of PMP / PTP Products from Cambium
Networks
• An alternative to competitive offerings in the low cost
category but with Cambium Quality and Reliability
• ePMP Incorporating Signature Capabilities of Cambium’s PMP
Solutions
– GPS Synchronized provides for frequency reuse
– High Scalability and Performance Consistency
– eFortify – to maintain performance in external interference
– Effective QoS for support of prioritized data, voice and video
– eCommand – to help Plan, Provision and Monitor your Network
– Designed for Reliability following the Cambium Quality Process

The Power of
GPS Synchronization

Problems with Unsynchronized Wi Fi Solutions
for Outdoor Broadband Wireless Access
Customer
Premises
Customer
Premises
Customer
Premises
Customer
Premises
(1) Hidden Node Problem Causes “Collision Collapse”
(2) AP to AP Interference when some APs Tx while others Rx
• SM to SM Interference also can occur
Interference Interference
52
“Solution”:
• No Freq Reuse
• Large Guard Bands
between frequencies
Interference

a) GPS Synchronized TDD MAC
The Right Solution Is A
High Performance GPS Sync Solution
53
Eliminates “Collision Collapse” and Primary
Self Interference:
• AP to AP Interference (DL to UL)
• SM to SM Interference ( UL to DL)
Allows for Reduction in Guard Bands
Key Components Benefits

Primary Self Interference
54
AP5
AP4 AP3
AP2
AP1AP6
SM
AP1
AP2
AP3
AP4
AP5
AP6
C
M
M
Each AP is
transmitting
at a different
time
AP: Access Point

55
GPS Sync Eliminates Primary Self
Interference
AP5
AP4 AP3
AP2
AP1AP6
RM
AP1
AP2
AP3
AP4
AP5
AP6
Each AP is
transmitting
at the SAME
time
AP: Access Point

a) GPS Synchronized TDD MAC
b) Automatic SM Tx Power Control
c) Front-Back Antenna Isolation
The Right Solution Is A
High Performance GPS Sync Solution
56
56
Reduces Secondary Self Interference
• SM to Other AP Interference (UL to UL)
• AP to Other SM Interference (DL to DL)
Allows for Frequency Reuse
Eliminates “Collision Collapse” and Primary
Self Interference:
• AP to AP Interference (DL to UL)
• SM to SM Interference ( UL to DL)
Allows for Reduction in Guard Bands
Key Components Benefits

Secondary Self Interference - Uplink
57
Freq AFreq A
Auto SM
Tx Pwr Control
Auto SM
Tx Pwr Control
SM-X SM-YAP-X AP-Y
Antenna Front Amplifies Antenna Back Attenuates
High Front Amplification and High Back Attenuation are required
Need High Front to Back (F/B) Ratio > 30 dB

Secondary Self Interference - Downlink
58
Freq AFreq A
SM-X SM-YAP-X AP-Y
Antenna Front Amplifies Antenna Back Attenuates
High Front Amplification and High Back Attenuation are required
Need High Front to Back (F/B) Ratio > 30 dB

The Importance of Spectral Efficiency
• Spectral Efficiency:
– A measure of how efficiently a wireless solution utilizes RF spectrum
– Defined as Throughput Achieved (bps) per Spectrum Utilized (Hz) – bps / Hz
• Clear Spectrum is a scarce resource
• A solution that makes efficient use of this scarce resource provides
a superior Return on Investment to the Network Operator
• Example for Illustration: Four Sector AP Site with 6 km coverage
radius deployed in 50 MHz of available spectrum:
#3
#1
#4
#2

Unsynchronized Deployment in 50 MHz
• No channel reuse with the cell
• Guard Bands between channels used must be greater than or
equal to 2X then channel Bandwidth
• Avg Capacity of 5 MHz channel with 6 km range = 22 Mbps
• Spectral Efficiency of Unsynchronized Deployment:
4 x 22 Mbps = 88 Mbps / 50 Mhz = 1.8 bps/Hz
Channel
A
Channel
B
Channel
C
Channel
D
50 MHz of Spectrum
5 MHz 5 MHz 5 MHz 5 MHz
10 MHz10 MHz10 MHz D
A
C
B

ePMP GPS Sync Deployment in 50MHz
• 2 channel reuse supported within the cell
• 5 MHz Guard Bands between channels
• Avg Capacity of 20 MHz channel with 6 km range = 65 Mbps
• Spectral Efficiency of Unsynchronized Deployment:
4 x 65 Mbps = 260 Mbps / 45 Mhz = 5.8 bps/Hz
Channel
A
45 MHz of Spectrum
5 MHz
20 MHz
Channel
B
20 MHz
> 3X Spectral Efficiency for ePMP GPS Sync Solution
B
A
A
B

The ROI of GPS Synchronization
• 3X the Spectral Efficiency with ePMP
• 3X the Number of Subscribers
• 3X the Monthly Revenue
• Much Faster Payback with the ePMP

E pmp for public presentation feb 27 2015

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