Wireless Voice and Data Systems for Transit Applications Update Barry Einsig Tyco Electronics Wirele

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Wireless Voice and Data Systems for Transit
ApplicationsUpdateBarry EinsigTyco
Electronics Wireless SystemsOctober 7, 2007

• Public Transportation Wherever Life Takes you

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Agenda800 MHz Rebanding700 MHz Broadband
Auction Carrier migration to 3G and 4GNarrow
banding Other Wireless of interest to transit

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800 MHz Rebanding the problem

• Public Safety frequencies are interspersed with
  cellular carriers
• 25 KHz to 10 MHz Carriers
• Signals from a near cellular carrier overcome
  signals from a distant Public Safety System
• Interference mechanisms
• Out-of-Band Emissions
• Receiver Intermodulation
• Receiver Overload
• Transmitter Intermodulation
• Widespread reports of interference to Public
  Safety systems

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800 MHz Rebanding update
Released September 12, 2007 FCC ANNOUNCES
SUPPLEMENTAL PROCEDURES AND PROVIDES GUIDANCE FOR
COMPLETION OF 800 MHZ REBANDING WT Docket No.
02-55 By this Public Notice, the Federal
Communications Commission (Commission)
announces supplemental procedures and provides
guidance for completion of 800 MHz rebanding by
National Public Safety Planning Advisory
Committee (NPSPAC) licensees. As part of the
rebanding process, NPSPAC licensees are being
relocated to new frequencies in the 800 MHz band,
with all rebanding costs to be paid by Sprint
Corporation (Sprint). The Commissions orders
provide for the rebanding process to be completed
by June 26, 2008.

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800 MHz Rebanding update
The following procedures and guidelines are
intended to expedite (1) rebanding
planning activities undertaken by NPSPAC
licensees (2) negotiation of Frequency
Reconfiguration Agreements (FRAs) with Sprint
and (3) physical implementation of rebanding.
This Public Notice also provides guidance to
Sprint and the 800 MHz Transition Administrator
(TA) to help expedite cost review and approval,
and ultimately to ensure that rebanding is
accomplished in a reasonable, prudent, and
timely manner. Completion of Planning The
following time limits shall apply to planning
activities for NPSPAC licensees that
have negotiated a Planning Funding Agreement
(PFA) with Sprint or are engaged in planning
without a PFA1 o All NPSPAC licensees must
complete planning (either with or without a PFA)
and submit a cost estimate to Sprint in
accordance with the following timelines NPSPAC
licensees with systems of up to 5,000 subscriber
units must complete planning and submit a cost
estimate within 90 days of TA approval of the
PFA.2 NPSPAC licensees with more than 5,000
units must complete planning and submit a cost
estimate as follows 5,001-10,000 units 100
days Over 10,000 units 110 days.3

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800 MHz Rebanding update
NPSPAC licensees in Waves 1-3 that are already
engaged in planning on the release date of this
Public Notice must complete planning and submit a
cost estimate to Sprint as follows4 Wave 1
by October 15, 2007 Wave 2 by November 15,
2007 Wave 3 by December 15, 2007 o Sprint
shall cooperate with and fully support NPSPAC
licensee planning efforts in accordance with
these time limits. We discourage licensees from
requesting extensions of time for planning that
assert arguments on behalf of Sprint. Requests
for extension based on delay caused by Sprint
will not be routinely granted. o To facilitate
completion of planning within these time limits,
we advise NPSPAC licensees to provide in their
contracts with equipment vendors and consultants
that such vendors and consultants will make
sufficient resources available to support
licensee planning efforts. Licensee requests for
extension of planning time based on
claimed unavailability of vendor or consultant
resources will not be routinely granted. o
Subject to the above limitations, a NPSPAC
licensee may request that the Public Safety and
Homeland Security Bureau (PSHSB) allow additional
time for planning, but any such request must
explain why more time is necessary as well as
demonstrate that the licensee has exercised
diligence in the time already allotted. Factors
that will be considered in evaluating a request
include system size and complexity, degree
of interoperability with other systems, and level
of effort required to prepare a reasonable cost
estimate.

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800 MHz Rebanding solutions

• Create guard band
• Boost public safety signal
• Better receiver bandpass filters in receiver
  front-end
• Tuning of cellular site to eliminate
  intermodulation products
• Install antennas with downward radiation pattern
  to suppress interfering sidelobes
• Only effective for high sites
• Switchable attenuator
• Automatically inserts attenuator in presence of
  strong desirable signal

• Public Transportation Wherever Life Takes you

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700 MHz Rebanding update

• 700 MHz Spectrum Opportunity
• Currently allocated to UHF TV, Channels 51
  through 69
• Suitable for transit voice and data applications
• Could be used for broadband applications
• Proposals to release spectrum by 2007, without
  necessarily meeting 85 goal of digital-ready TV
  sales penetration
• Emphasis on public safety applications,
  especially first responders

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700 MHz Band licenses for initial bidding. As
explained in this Public Notice, 700 MHz Band
licensesmay be offered in contingent subsequent
bidding. In the event that any licenses are
offered in contingentsubsequent bidding, that
event will be designated as Auction 76. On August
17, 2007, in accordance withSection 309(j)(3) of
the Communications Act of 1934, as amended,2 the
Wireless TelecommunicationsBureau (Bureau)
released a public notice seeking comment on
competitive bidding procedures for boththe
initial bidding and the contingent subsequent
bidding for 700 MHz Band licenses.3 Interested
partiessubmitted 12 comments and 8 reply
comments in response to the 700 MHz Auction
Public Notice as wellas a number of ex parte
communications.4
700 MHz FCC Auction update

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30MHz in Lower Band (EA and CMA)
22MHz in Upper Band (REAG)
10MHz in Upper Band (Nationwide PS)
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Evolution of Wireless Technologies
4G
3G
2G
OFDM MIMO
EV-DO Rev. 0
EV-DO Rev. A
1X RTT
UMB
EDGE
HSDPA
HSPA
LTE
WiMAX (802.16e)
New Entrants
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Narrow banding update

• VHF and UHF Narrow-banding
• Industry must start planning and implementation
  now
• Deadline for conversion January 1, 2013
• No waivers
• 1 voice channel per 12.5 KHz bandwidth
• 4800 bps data per 6.25 KHz bandwidth
• Possible loss of volume with wideband receiver
  and narrowband signal
• Distortion with narrowband receiver and wideband
  signal
• Other possible issues with decreased range and
  near/far adjacent channel interference

• Public Transportation Wherever Life Takes you

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900 MHz 2.4 GHz 4.9 GHz5.8 GHz5.9 GHzOther
Wireless of interest to transit
Other Wireless of interest to Transit

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