Federal Communications Commission Task Force on Optimal ...
Transcript of Federal Communications Commission Task Force on Optimal ...
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Federal Communications Commission Task Force on Optimal PSAP Architecture
Working Group 2:
Optimal Approach to NG911 Architecture Implementation by PSAPs
27 July 2015
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Introduction
Since the late 1960’s, the 9-1-1 system has been
advancing and evolving throughout the United
States with 9-1-1 standing as the sole number for
notifying a public safety answering point (PSAP) that
an emergency is occurring and a caller needs
emergency assistance.
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IntroductionThe current system is based on the telephone
network that existed in the 1970’s and it was logical
to use a feature known as “selective routing” to
support the implementation of 9-1-1 calling
nationwide through central offices. The ability to
deliver call back information was derived utilizing
“operator services” functionality.3
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Backed by Congress and Industry
Networks supporting 9-1-1 calling spread
across the nation.
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Percentage of US population covered by 9-1-1
• 1976 – 17%
• 1979 – 26%
• 1987 – 50%
• 1999 – 93%
• Today – Approximately 96%
Source NENA, the National Emergency Number Association5
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Milestones in 9-1-1
• 1979
• Nine states had enacted 9-1-1 legislation
• 70 new systems per year
• 1999 – almost 89% had enhanced 9-1-1
Source NENA, the National Emergency Number Association6
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Circuit Switched Selective Routing for 9-1-1
• Norm for over forty years
• Routed through telephone company central office
• Customer devices rarely moved without
administrative control
• Telephone numbers correlated to a physical
dispatchable address 7
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Cell phone technology
Although cell phone technology existed as early as 1973, it
was not until mid-nineteen eighties that the next major step
occurred in mobile phone technology with the First Generation
(1G) fully automatic cellular networks introduction.
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Wireless began the 9-1-1 Paradigm Shift
• 1983 – FCC approved first mobile phone
• 1985 – PSAPs receive calls from mobile devices
• As numbers became mobile with device
• No longer able to receive call back and location information
• Telephone number to dispatchable address correlation no
longer valid
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The 9-1-1 Paradigm Shift
• Mechanisms were developed to “force” mobile E9-1-
1 into wired landline model
• This provided a stop gap measure
• Each ensuing technology advancement in cellular
deployment widened the gap between the technology
and the solution10
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Moving Rapidly Into the IP Evolution
• Forty year old switching systems across the United States
teeter on edge of obsolescence while telecommunications
nationally moves into the IP evolution
• IP networks are versatile and are the basis for delivering
NG9-1-1 services
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Next Generation 9-1-1• Requirement for a clear understanding due to the rapid
evolution of technology supporting 9-1-1
• A great deal written
• Lack of an overall comprehensive understanding and roadmap
• Requirement for a roadmap that will include a single resource
for information to provide guidance to decision-makers
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Question for Working Group 2
What is the optimal architecture for Next Generation 9-1-1?
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Goal for Working Group 2
Assist decision-makers tasked with making choices for
design and configuration of 9-1-1 systems to understand
key decision factors as well as provide a broader
understanding of the relevant impact of these decisions
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Working Group 2 Questions
• What is the optimal architecture for NG9-1-1?
• Is there one “best and optimal design”?
• If so, what elements are required?
• If not, what combination of configurations are
required?
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Challenges to 9-1-1 Decision-makers
• List on previous slide is a subset of the questions
• Requirement to synthesize competing information with
limited best practice guidance
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What is Optimal Architecture?
• Working Group 2 believes there is not one best
design and one best choice, but rather a number of
options that can be chosen for “optimal architecture”
of NG9-1-1 systems
• Working Group 2 intends to create a roadmap that
details the components and potential configuration
choices available to decision-makers 17
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Working Group 2 Three Subgroups• Access and NG9-1-1 Core Services
• PSAP CPE• Terminating Equipment
• 9-1-1 Call-taking
• Mapping
• CAD
• Dispatching
• Emergency Services IP Network (ESINET)18
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Working Group 2 Three Subgroups
• Each subgroup is tasked with research, analysis, and
discussions pertaining to their subject area(s) and
developing drafts of the anticipated final report
sections and recommendations
• Working Group 2 holds weekly conference calls to
discuss subgroup work19
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Configuration Options
OSPs
AccessNG9‐1‐1 Core
Services (NGCS)
Terminating Eqpt
9‐1‐1 Calltaking
ESInet IP transport network
ESInet IP transport network
Mapping, CAD, MIS, etc
EqptRadio
Field RespondersDispatching
(Substate) Substate Local LocalBy NGCS State Network hosted * CountyState Multi‐State Hosted Regional
Local Local Local
Hosted Regional Hosted * Could be at County or Regional
level
Physical or virtual PSAP
To below
A
A
RCH 062315
FirstNet?
GIS
WAN / LAN
WAN / LAN
GIS
StateSubstateCounty?
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Access Subgroup
• Configuration options defined
• Work has started on evaluating pros and cons for each
component and each `geographic’ option (local, county,
sub-state, state, multi-state)
• Work has started on report section text
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PSAP CPE & Dispatch Subgroup• Completed draft of report section 3 on current/legacy PSAP
description and issues that need to be addressed in next
generation deployments
• Working on report section 4 for next generation shared
infrastructure deployment options and optimization assessments
• Assessing feasibility of developing quantitative scoring
associated with each optimization factor to support quantitative
comparative analysis
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• Objective - Develop document defining optimal ESINET
architecture
• ESINET as defined by NENA: “…the network, not the
services that ride on the network”
ESInet Subgroup
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• Objective:• Architecture
• Defined Uses
• Operational Metrics
• Legal / Regulatory
• Security
• Management & Governance
ESInet Subgroup team scope
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• Define Optimal
• Document Assumptions
• Next Steps:• Cross sub-team meetings to collaborate / align direction
• Draft initial 9-1-1 Service Optimization Reports
• Develop document defining optimal ESINET architecture
ESInet Subgroup tasks
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Group 2 is Working to Identify
• Optimal Factors
• Core Components
• Designs of Optimal Architecture
• Configuration Variations
• Scenario Options Available
• Roadmap Guidance and Challenge to Decision-makers
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Last Note from Working Group 2• We have done a lot of work• We have more work to do
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Questions and/or Comments
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