Experimentation Description

0236-EX-PL-2015 Text Documents

3M Company

2015-04-15ELS_161267

FRN: 0005881040
File No 0236-EX-PL-2015
Applicant: 3M Company. Traffic Safety and Security Division (TSSD)

Technical Description
3M Company develops UHF RFID Systems (Transmitters and Passive Tags) for global ITS
Transportation applications such as Open Road Tolling. Typically, UHF readers operate at FCC
Part 90 (licensed) devices (902-904MHz & 910-921MHz) in North America. Other countries
operate within 902-928 MHz band or 865-868 MHz band in ETSI (CE Mark) deployments. 3M
has multiple indoor / outdoor locations in developing and testing RFID technology,
conformance and its interoperability. Locations include 3M Austin (TX) Center, 3M Center &
EMC Laboratory (St. Paul, MN), 3M Test Track (Cottage Grove, MN) and 3M North Carolina
(Morrisville).

UHF Readers have been “equipment typed” approved typically FCC Part 90.353 and use
remote attached directional antennas mounted downward on overhead roadway gantry (~17
feet high). Vehicle with windshield mounted tag passes under overhead gantry (antenna)
and data is captured. Antenna is localized to each lane (~3-4m width) and minimize cross
lane reads. 3M reader automatically adjusts the power output for antenna gain and cable
loss to comply with each country’s regulatory requirements. 3M offers model 6204 multiple
protocol reader (FCC Identifier M4Z6204) for open road tolling. Tolling protocols used in
United States are: 1) ASTMv6, 2) ISO 10374 (ATA), 3) ISO 18000-62 Type B (40k & 80k),
4) ISO 18000-63 Type C, 5) PS111 (IAG) and 6) Title 21 (T21). Experimental License is
needed to test different RFID readers (3M and from other manufacturers), antennas, protocol
combinations, power levels and parameter configurations for interference and compatibility
in vehicle transportation environment for MAP-21 directive.

UHF RFID tolling reader supports multiple RFID protocols, with diverse modulation schemes
where reader activates the tag and receives tag’s data. These protocols may be operated
individually or in a time-multiplexed combination.        Readers have antenna ports are
multiplexed, and only one port is transmitting at any given time and connected through cable
to antenna mounted on overhead gantry. The RF field from the reader can produce a tag
read zone ranging between 3-4m zone (0 degrees from horizontal / 3 degree vertical antenna
angle) within the roadway lane depending on the antenna port power, antenna gain and
antenna positioning. The RF field generated by the reader performs the following:

      Energize the tag antenna to provide power to the tag’s integrated circuit
      Provide a synchronized clock source for the tag
      Communicates the commands from the reader to the tag via modulation
      Act as a carrier for returned tag data

The reader is configured to selectable RF Channel assigned to each lane and transceiver is
idle until an event triggers the reader to begin transmission. While the RF downlink (reader-
to-tag) signal is transmitted, the reader monitors its receiver output for modulation indicating
the presence of a tag.

When a tag enters the RF read zone, its antenna is energized and the tag starts to divide
down the carrier, demodulate commands from the reader, and begins to clock data to its
antenna modulator circuit. The modulator circuit shunts the antenna element, causing
momentary fluctuations in the carrier amplitude reflected back to the reader. The reader
detects this amplitude-modulated data and decodes the resulting bit stream into the actual
tag data. The decoding scheme depends on the specific tag protocol.


In next generation transportation safety initiative with Connected – Automated Vehicles, 5.9
GHz DSRC (IEEE 802.11 based) two-way (bi-directional) communications is being developed
and validated for low latency “Critical Safety of Life” transmissions. Vehicle’s DSRC device
(Part 95) has targeted 300m omnidirectional range and infrastructure’s DSRC device (Part
90) has 500-700m range typically omnidirectional. DSRC device can be used for many safety
communication applications in transmitting digital message giving vehicle-to-vehicle, vehicle-
to-infrastructure and time/location information in ad-hoc network.      Currently, industry is
evaluating this communication technology in application pilots.

Testing includes UHF RFID Readers and their protocol used in regional tolling applications to
insure multiple protocol performance and interoperability for FCC Part 90.353 Location &
Monitoring Transmitter. Also, 3M request 5.850 – 5.925 GHz coverage in developing and
testing DSRC (Dedicated Short Range Communications) devices per FCC Part 90 & 95 rules.
Two year experimental license is being requested to operate these “Equipment Type
Approved” readers within 5 kilometers radius of these locations and short term (less than two
months) at existing U.S. tolling locations for technology evaluation / compatibility. 3M’s
locations coverage request are shown below:


            3M Austin Center
                                                                  3M Center, Building 235
    6801 River Place Blvd, 141-4N-33
                                                                    St. Paul, MN 55144
         Austin, TX 78726 USA                            (44.952442, ‐92.995471 or 44⁰57’08.8”N 92⁰59’43.7”W)
  (30.393659, ‐97.837560 or 30⁰23’37.2”N 97⁰50’15.2”W)




                                                          3M EMC Laboratory, Bldg. 76-1-01,
                                                                 410 E. Fillmore Ave.
  Reader / Antenna Setup at 3M Austin Center
                                                              St. Paul, MN 55107-1208
                                                         (44.943980, ‐93.074912 or 44⁰56’38.3”N 93⁰04’29.7”W)


          3M North Carolina                                           3M Test Track
   200 Perimeter Park Drive, Suite E                                Cottage Grove, MN
      Morrisville, NC 27560 USA                         (44.798841, ‐92.919143 or 44⁰47’55.8”N 92⁰55’08.9”W)
 (35.855316, ‐78.819909 or 35⁰51’19.1”N 78⁰49’11.7”W)




                    Overhead Gantry at Test Track (Cottage Grove)




Technical Data
Readers (UHF per FCC part 90.353 LMT and DSRC per Part 90 & 95L):
 3M 6204 (M4Z6204), 902.75 – 920.45 MHz, 3.2 W Output, Frequency Tolerance 1.0 PM, Emission
   Designators (432KK1D, 1M06K1D, 422KK1D and 758KK1D)
 3M 6100 (n/a), 911.2 – 920.45 MHz, 3.0 W Output, Same as 6204
 Kapsch Janus MPRv2 (JQU802295A), 902.5 – 921.5 MHz, 2.43 W Output, Frequency Tolerance 0.24
   PM, Emission Designators (231KNON, 248KNON, 499KK1D, 465KK1D, 475KK1D, 679KK1D, 762KK1D
   and 1M66K1D)
 Kapsch Badger (JQU800495). 909.75‐921.75 MHz, 4.0W, 6M50P0N
 Transcore MPI 6000A (FIHMPI6000A), 902.25 – 921.5 MHz, 2.0 W Output, 2.5 PM, Emission
   Designators (NON, 610KL1D, 815KL1D, 1M71L1D and 2M82L1D)
 DSRC MCTT (n/a), 5.850‐5.925 GHz, 17 dBm output & 6 dBi Gain Antenna


UHF Antennas
 Overhead Gantry Antenna, Mounted ~5‐6M high pointed downward and forward ~5 Degrees, 902‐
   928 MHz, Linear 36 degrees beamwidth, 15 dBi gain.
 Overhead Gantry Antenna, Mounted ~5‐6M high pointed downward and forward ~5 Degrees, 865‐
   870 MHz and 902‐928 MHz, Linear 30 degrees beamwidth, 15 dBi gain.
 Overhead Gantry Antenna, Mounted ~5‐6M high pointed downward and forward ~5 Degrees, 865‐
   870 MHz and 902‐928 MHz, Linear 22 degrees beamwidth, 16 dBi gain.
 .

Locations and Coverage:
 3M Austin Center, 6801 River Place Blvd, 141-4N-33, Austin, TX 78726 USA
    (30⁰23’37.2”N 97⁰50’15.2”W) fixed and mobile within 5km radius
 3M North Carolina 200 Perimeter Park Drive, Suite E, Morrisville, NC 27560 USA
    (35⁰51’19.1”N 78⁰49’11.7”W), fixed and mobile within 5km radius
 3M Test Track, Cottage Grove, MN
    (44⁰47’55.8”N 92⁰55’08.9”W) fixed and mobile within 5km radius
   3M Center, Building 225, St. Paul, MN 55144
   (44⁰57’08.8”N 92⁰59’43.7”W) fixed within 5 km radius
   3M EMC Laboratory, Bldg. 76-1-01, 410 E. Fillmore Ave., St. Paul, MN 55107-1208
   (44⁰56’38.3”N 93⁰04’29.7”W), fixed within 5 km radius



Document Created: 2015-04-15 16:32:27
Document Modified: 2015-04-15 16:32:27

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