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Going Mobile:. Technology and Policy Issues in the Mobile Internet Richard Bennett Presentation by Shawn. Main Themes. Still at an early stage Mobile web has great potential Solve Technological Hurdles - Shawn Remove Policy Hurdles - Ray. The Solution.
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Going Mobile: Technology and Policy Issues in the Mobile Internet Richard Bennett Presentation by Shawn
Main Themes Still at an early stage Mobile web has great potential Solve Technological Hurdles - Shawn Remove Policy Hurdles - Ray
The Solution Refrain from excessive regulation Build the mobile infrastructure that the mobile internet truly needs
Technological Scope Internet Engineering Mobile Network needs improvement Device Application Engineering
Need More Base Stations More Radio Sectors Increase Backhaul Bandwidth Easy – Suburbs and Exurbs Hard – Central Cities and Rural Areas
Internet != Mobile Network Internet Small group Low duty cycle Occasional use Locked down computers Few users but Highly Skilled Trustworthy users Non-commercial Mobile Network Real Time communication apps Diverse group of Users Personal Devices competing for market share
Mobile Data Originally Extension of Mobile Network Added To the edge Phone fundamentals not changed Analog Digital mid 90’s Data special feature Currently – telephone more efficient than data
Brief History Originally CDPD (Cellular Digital Packet Data) 9.6 to 19.2 Kbps EDGE, WDMA, HSPA, and HSPA+ LTE next big phase Will now be a data centric mobile network
Coopers and Butters Butters Law – Internet Speeds Double every 9 months (Gerry Butters) Coopers Law – Mobile Speeds Double very 30 months (Martin Cooper) Rate of progress = Price / Capacity ? Mobile at a Disadvantage? No, Relevance and Application Innovation will make up the difference
Modularity Two major differences with the Internet Requires User Identity IP only end point to end point
Efficiency • Better Antennas • Effective coding digital to analog • Medium Access Controls • LTE offers an answer
LTE • Long Term Evolution • Pure Packet System w/ some Voice • GPRS is telephony w/ some Data • Major Change • Innovates in both Radio network and Service Space • Operates at 10MHz instead of 5MHz • Greater The Spectrum the higher the data rates
Manageability Wi-Fi Contention Model Multiple Access Model
Contention Versus Scheduling • Scheduling • Reserves Bandwidth • Can be 100% efficient • Requires Network Restructuring • IP does not have a vocabulary to communicate with Scheduling
Innovation Uniformity vs Capability Uniformity the Clear Bias Capability needed for Efficiency
Voice over LTE LTE will use IMS – IP Multimedia Subsystem Pre-LTE for now One Voice (VoLGA) Voice over LTE via General Access
IMS • 2 Contradictory Goals • Low cost general purpose hardware • Rich Platform – Monetize and Deploy • Uses RACS – Resource and Admission Control Subsystem
RACS • Uses Scheduling • Reserves Bandwidth • By passes the IP