Connecting the Un-Connected and Under-Connected
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Transcript of 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
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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
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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
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CambiumUnique
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The Power of GPS Synchronization
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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
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One Solution:• No Freq Reuse• Large Guard Bands
between frequencies
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a) GPS Synchronized TDD MAC
b) Automatic SM Tx Power Controlc) Front-Back Antenna Isolation
The Right Solution Is AHigh Performance GPS Sync Solution
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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
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Primary Self Interference
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AP5
AP4 AP3
AP2
AP1AP6
SM
AP1
AP2
AP3
AP4
AP5
AP6
CMM
Each AP is transmitting at a different time
AP: Access Point
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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
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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
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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
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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
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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
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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
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Solution Capabilities
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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
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Deployment ConfigurationsSynchronized & Unsynchronized
PTP Links
Unsynchronized
PTP Links
Synchronized & Unsynchronized PMP
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What’s Included With the Radios
Power SupplyRadio Module GPS Antenna
GPS Synchronized Connectorized Radio
Power SupplyRadio Module Mounting Strap
Unsynchronized Integrated Radio
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NA SKU OnlyC058900A112A
NA SKU OnlyC058900C132A
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Radio Interconnections
RF Connections
GigabitEthernet
GPSAntenna
Connector
Ground Lug(optional)
Auxiliary100BaseTEthernet
Main100BaseTEthernet
GPS SynchronizedConnectorized
Radio
UnsynchronizedIntegrated Radio
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Sector AntennasSlot for GPS Antenna
Removable Protective Cover
Grounding and MechanicalConnection via screw
Adjustable Brackets
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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
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• 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
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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
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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
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ePMP Operations and Management
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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
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Easy to Use Management Interface Reduces Operational Expense
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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
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Summary
Copyright © 2013 Cambium Networks, Ltd. All rights reserved.
• 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
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