connecting the un-connected and under-connected

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. 1

Connecting the Un-Connected and Under-Connected

• October 2013


ePMP Genesis

• Resiliency• Scalability• Performance• Security• Ease of deployment• Manageability

• Mass Market 802.11n system on a chip (SoC)

• Custom high performing, synchronized and scalable MAC and PHY

World’s most affordable, global broadband wireless solution for broadband wireless access to support developing communities, without sacrificing quality.

Cambium Heritage Cambium Innovation

Copyright © 2013 Cambium Networks, Ltd. All rights reserved.

A reliable, scalable solution at a breakthrough price:• 2x2 MIMO in 20 / 40 MHz channels

• Incorporating key elements of Cambium’s scalable PMP Solutions– High Performance, Configurable GPS Synchronized operation

– Effective QoS Management for support of prioritized data, voice and video

– Designed for reliability following the Cambium Quality Process

•Managed by Cambium Network Services Software solution

• Available NOW, with enhancements to be introduced in the near future

ePMP Solution Overview

5

CambiumUnique


The Power of GPS Synchronization


Problems with Unsynchronized Wi Fi Solutions for Outdoor Broadband Wireless Access

CustomerPremises

CustomerPremises

CustomerPremises

CustomerPremises

(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 Interference

7

One Solution:• No Freq Reuse• Large Guard Bands

between frequencies


a) GPS Synchronized TDD MAC

b) Automatic SM Tx Power Controlc) Front-Back Antenna Isolation

The Right Solution Is AHigh Performance GPS Sync Solution

8

8

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

downlink downlinkuplink uplink


Primary Self Interference

9

AP5

AP4 AP3

AP2

AP1AP6

SM

AP1

AP2

AP3

AP4

AP5

AP6

CMM

Each AP is transmitting at a different time

AP: Access Point

Copyright © 2013 Cambium Networks, Ltd. All rights reserved.10

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


Secondary Self Interference - Uplink

Freq AFreq A

Auto SMTx Pwr Control

Auto SMTx Pwr Control

SM-X SM-YAP-X AP-Y

Antenna Front Amplifies Antenna Back Attenuates

High Front Amplification and High Back Attenuation are requiredNeed High Front to Back (F/B) Ratio > 30 dB


Secondary Self Interference - Downlink

Freq AFreq A

SM-X SM-YAP-X AP-Y

Antenna Front Amplifies Antenna Back Attenuates

High Front Amplification and High Back Attenuation are requiredNeed 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

#3

#1

#4

#2


Spectral Efficiency of Deployment Alternatives

1) No Synchronization

2) Incomplete GPS Sync:– Inefficient Sync’ed MAC– No Tx Pwr Control– Poor Antenna F-B isolation

3) ePMP GPS Sync

1)

2)

3)

D

A

C

B• No Freq Reuse• Must have >= 2 x Channel BW Freq

Separation between Chans• Spectral Efficiency is:• 4 x 80 mbps / (80 + 120) = 1.6 bps/Hz

• No Freq Reuse• Must have >= 1 x Channel BW Freq

Separation between Chans• Throughput down to 50 Mbps• Spectral Efficiency is:• 4 x 50 mbps / (80 + 60) = 1.4 bps/Hz

D

A

C

B

• 2 Channel Freq Reuse• Only 5 MHz Guard Bands between Adj

Sectors• Throughput supports 80 Mbps• Spectral Efficiency is:• 4 x 80 mbps / (40 + 5) = 7.1 bps/Hz

B

A

A

B

14> 4X Spectral Efficiency


The ROI of GPS Synchronization

•4X the Spectral Efficiency with ePMP, means

•4X the number of subscribers, which means

•4X the monthly revenue, which means

•Much Faster Payback with the ePMP


Solution Capabilities


17

ePMP Solution Overview

High PerformanceGPS-Synchronized

MAC

• Precision Timing• Extended Dynamic Tx Range with

Automatic Tx Power Control• 3 Level QoS with Automatic VoIP

Prioritization

SW Platform including Intuitive GUI and Element Management System

GPS Synchronized Radio Integrated Radio

Sector Antennas

90 degree Sector120 degree Sector


Deployment ConfigurationsSynchronized & Unsynchronized

PTP Links

Unsynchronized

PTP Links

Synchronized & Unsynchronized PMP


What’s Included With the Radios

Power SupplyRadio Module GPS Antenna

GPS Synchronized Connectorized Radio

Power SupplyRadio Module Mounting Strap

Unsynchronized Integrated Radio

19

NA SKU OnlyC058900A112A

NA SKU OnlyC058900C132A


Radio Interconnections

RF Connections

GigabitEthernet

GPSAntenna

Connector

Ground Lug(optional)

Auxiliary100BaseTEthernet

Main100BaseTEthernet

GPS SynchronizedConnectorized

Radio

UnsynchronizedIntegrated Radio

20


Sector AntennasSlot for GPS Antenna

Removable Protective Cover

Grounding and MechanicalConnection via screw

Adjustable Brackets


Solution Specifications

Parameter Specification

Frequency Bands 5 GHz: 5150-5350 ; 5470 – 5875 MHz*

Headline Throughput(40 MHz Channel) 200+ Mbps

Maximum Tx Power 23 dBm

Receive Sensitivity -69 dBm (2x64QAM) to -86 dBm (QPSK 1/2)

Power Consumption 8.5 W Maximum

Environmental -30C to +55C Operating Temp

Antenna Gains Integrated: 13 dBi 90 deg Sector: 15 dBi 120 deg Sector: 14 dBi

* FCC & IC Certification for 5.2/5.4 GHz is pending


• Radios can be configured as AP, SM or PTP• 20 / 40 MHz Channel • Standard 5 GHz Frequency Bands:

– 5150-5350, 5470 – 5875 MHz– 5.8 GHz Band Available Now– FCC Grants for 5.4 GHz and 5.2 GHz are pending

• GPS Sync and non-sync modes• Automatic Tx Power Control• ABAB Freq Re-use (5 MHz guard)• 3 Level QoS with Automatic VoIP Prioritization• L2 Bridging with NAT• L2 / L3 Firewall Capabilities• VLAN Support• SNMPv2

ePMP Solution Capabilities

23

23


Cambium Reliability Recipe

Ingredient ePMP

Design with Margin

High Quality Components

ESD / Surge Protection

Robust Enclosure

Robust Design Verification

Reliability Testing (ALT)

High Quality Manufacturing


GPS Synchronization Throughput & Scalability

* Throughput as measured in a 20 MHz channel at highest modulation, DL/UL = 75/25

25

0

20

40

60

80

100

120

1 2 3 4 5 6 7 8 9 10 11 12 13 14 18 22 26 32 36 44

Mbp

s

Number of Served SM Devices

Aggregate (DL/UL) Throughput

UDP

TCP


ePMP Operations and Management


Management Tools Overview

• Intuitive Graphical User Interface for Individual Radio

• Cambium Network Solutions Server (CNS) for Centralized Management

• SNMPv2 MIB Access

• Test Tools:– Spectrum Analyzer– Throughput Test– Ping Test– TraceRoute Test


Easy to Use Management Interface Reduces Operational Expense


Cambium Network Services Solution (CNS)

New Element Management System for ePMP

Initial Release will support: SW Upgrades

Future Releases will Support

Monitoring of traps and statistics

Configuration Updates

Management of other Cambium PMP/PTP Solutions


Summary


• ePMP leverages Cambium’s 10+ years of experience to bring a level of reliability and scalability never seen before at this price

• GPS Synchronized Operation is the key to scalability and reliability of performance and for making optimal use of scarce available spectrum:– Reduces self-interference

– Allows for a high degree of frequency reuse

– Allows for dense, high capacity performance without impact to reliability

• This is just the beginning for the ePMP Portfolio. Look for enhancements and additions to the portfolio in the near future

• For more information visit: www.cambiumnetworks.com• The ePMP Solution is available NOW. Visit:

– http://www.balticnetworks.com/catalogsearch/result/?q=ePMP

ePMP

31

http://www.cambiumnetworks.com/

http://www.balticnetworks.com/catalogsearch/result/?q=ePMP

connecting the un-connected and under-connected

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