Overview of Overview of Broadband Technology Broadband Technology Platforms Platforms Chris Moore, Deputy Chief Wireless Telecommunications Bureau Regional Educational Workshop On Rural Broadband September 18, 2008 Note: The views expressed in this presentation are those of the author and may not necessarily represent the views of the Federal Communications Commission
Overview of Broadband Technology Platforms. Chris Moore, Deputy Chief Wireless Telecommunications Bureau Regional Educational Workshop On Rural Broadband September 18, 2008. Note: The views expressed in this presentation are those - PowerPoint PPT Presentation
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Overview of Overview of Broadband Technology Broadband Technology
Note: The views expressed in this presentation are those of the author and may not necessarily represent the views of the Federal Communications Commission
2
Overview Overview Digital Subscriber Line (DSL) Cable Broadband ServiceFiberSatelliteFixed Wireless Service - LicensedMobile Wireless Service - LicensedWireless Internet Service Providers (WISPs) - Unlicensed Broadband Over Power Lines
3
Residential Advanced Services Lines by Technology as of
June 30, 2007
4
Digital Subscriber Line Digital Subscriber Line (DSL)(DSL)
Most commonly used by local telephone carriers
Variations: ADSL, VDSL
Up to 7 Mbs download;
1 Mbs upload
Distance dependent
5
Cable Broadband ServiceCable Broadband ServiceDeveloped for TV distributionEvolved to provide TV/Data/VoiceUp to 15 Mbs download; 2 Mbs upload Distance independentRegister w/ FCC
Traditional fixed point-to-point service: Microwave signals are aimed along a narrow path using high-gain antennas.Requires line-of-sightApplications: Communications backbones; studio-transmitter links; cable relay
Business Business Access &Access &BackhaulBackhaul
HotspotHotspotBackhaulBackhaul
W-FiW-Fi
802.11802.11
Directly to Directly to Indoor ModemIndoor Modem
Wi-Fi
Examples:
Broadband Radio Service/Educational Broadband Service
Local Multipoint Distribution Service
13
Mobile WirelessMobile WirelessBroadband ServiceBroadband Service
The FCC has created multiple mobile radio services suitable for broadband:– Cellular Service– Specialized Mobile Radio Service (SMRs)– Personal Communications Service (PCS)– Advanced Wireless Service (AWS)– 700 MHz (Recently Auctioned)
Technologies: GSM family; CDMA family; planned WiMAXVarious types of service, with data speeds of up to 2 MbsActual speed depends on several factorsAll of the major technologies have developed evolutionary paths to faster data rates
14
Wireless Internet Service Wireless Internet Service Providers (WISPs) - Providers (WISPs) -
UnlicensedUnlicensedPart 15 of the FCC rules provides for operation of unlicensed devicesMany kinds of devicesoperate under these low power rules -Wi-FiVarious techniquesare used to enable broadband servicein rural areasData speeds varyThere are thousands of WISPs operatingon an unlicensed basis around the U.S.
Metropolitan, Rural & Community Networks
15
Broadband Over Power Broadband Over Power LinesLines
Power Line Interface Device Located In Home
High Voltage Medium Voltage Low Voltage
LV Distribution Transformer
Access BPL
PowerGeneration
Plant Substation
AggregationPoint
Internet
~ MVolts ~ 1kVolts to 40 kVolts ~ 120/240 Volts
RepeaterCoupler
Backhaul Point
(Gateway)
BPL signals are extracted here & converted into/from traditional communication packets for appropriate communication direction
In some Access implementations,these physical links are replaced by wireless links
16
Medium Voltage Coupler
Bridge & Control Module
Low-Voltage Distribution Transformer
BPL: Bypassing the BPL: Bypassing the TransformerTransformer