Experiment Description

0920-EX-CN-2017 Text Documents

Qualcomm Technologies, inc.

2017-12-11ELS_202170

                                                                                     FCC Form 442




             12.2-12.7 GHz Experiment Description


1 Introduction
Qualcomm's technologies powered the smartphone revolution and connected billions of people.
We pioneered 3G and 4G – and now we are leading the way to 5G and a new era of intelligent,
connected devices. Our products are revolutionizing industries, including automotive, computing,
IoT, healthcare and data center, and are allowing millions of devices to connect with each other in
ways never before imagined. Qualcomm Incorporated includes our licensing business, QTL, and
the vast majority of our patent portfolio. Qualcomm Technologies, Inc., a subsidiary of Qualcomm
Incorporated, operates, along with its subsidiaries, all of our engineering, research and
development functions, and all of our products and services businesses, including, our QCT
semiconductor business. For more information, visit Qualcomm’s website, OnQ
blog, Twitter and Facebook pages.

Qualcomm is conducting limited antenna pattern testing of antennas designed for use in the
12.2-12.7 GHz frequency range. The antenna testing requires a large separation distance to
gather far field data due to the frequencies and antenna aperture size and cannot be completed
in Qualcomm anechoic chamber.

This request is to extend the period covered by an STA (call sign WL9XIT) which expires 31
December 2017.

In that STA, at the request of BSS operators, and the direction from the FCC to obtain their
consent, we showed that the interference "EPFD" level requested should be < -171dBW/
M2/4KHz. We confirm that this EPFD levels will remain below this limit and that the test
configuration remains unchanged.

The configuration described here meets those requested levels and simulations have been
shared with all BSS operators concerned that demonstrate compliance.

Qualcomm respectfully requests the Commission to grant an Experimental license to enable
Qualcomm to continue with these important antenna characterization measurements


2 Transmitter Information
Testing is temporary and expected to occur infrequently for up to twleve months while the test
measurements are completed. The transmitter will only be operational during active testing that
occurs at any time during the day or week. Test periods are typically 10-30 minutes when testing
is active.

A highly directional antenna, with very low power levels has been selected to meet BSS operators
requested interference levels of -171dBW/M2/4KHz . It is mounted and pointed so as to use the
building structure to provide additional shielding to back-lobes is shown in figure 1 and 2 and
attachment A. Table 1 defines the transmitter information and Table 2 defines the site location.

A single, low-power continuous wave form (“CW”), measurement signal will be transmitted from
the site defined in Table 2 at a fixed orientation. Eight test frequencies which have been agreed
with BSS operators are specified in Table 3.




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                                                                                       FCC Form 442



The equipment under test (“EUT”) is a receive antenna that is located on another building as
shown in Figure 2. The receive antenna’s orientation is moved in a process to evaluate the
antenna pattern.


                                    Table 1 Transmitter Information
                                         Peak EIRP

                                                      W              Peak Antenna
 Type        Frequency (GHz)      dBm     dBW                W ERP                  Emission BW
                                                     EIRP             Gain (dBi)

 Fixed   12.2-12.7
                                  15.6    -14.4      0.036   0.036       30.7           CW
         (At table 3 intervals)




                                   Figure 1 Fixed Site Antenna Pattern




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                                                                                            FCC Form 442




                              Figure 2 Location of Test antenna and transmit path


                              N




                                                        172.8 degrees (south)




                                     Table 2 Transmitter Site Information
Site                                                                                        Elevation   Antenna
         Address          County         Lat            Long      3dB Beamwidth   Azimuth
 #                                                                                                       Type
1      5745 Pacific   San Diego      32 54 14 N     117 11 47 W   4 degrees       172.8     +2.8        Directional
       Center Blvd                                                                degrees   degrees     15 inch
       San Diego,                                                                 (south)   above       reflector
       CA 92121                                                                             horizon




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                                                                                 FCC Form 442




                   Table 3 BSS Coordinated Transmitter Test Frequencies
                                                 BSS         BSS CH center
                            Test frequency      Channel       Frequency
                                                number          (MHz)
                              12,238.68            2             12,238.58
                              12,297.00            6             12,296.90
                              12,355.32            10            12,355.22
                              12,413.64            14            12,413.54
                              12,471.96            18            12,471.86
                              12,530.28            22            12,530.18
                              12,588.60            26            12,588.50
                              12,646.92            30            12,646.82

 All test signals are Continuous Wave (CW) with an Emission designator 100HN0N with an input
 power to the antenna of -45dBW.




3 License Requested
Qualcomm respectfully requests the Commission to grant an experimental license to enable us to
complete important antenna performance measurements




4 Points of Contact to stop transmission

The following points of contact is available as a stop buzzer.

Email ku.spectrum.shutdown@qti.qualcomm.com; or

Brian Jones
5775 Morehouse Drive
San Diego
CA 92121
858 658 4751(24 hrs hour contact)
brjones@qti.qualcomm.com




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QI.IALCONVV\'




                                              Attachment A

                                        Figure 1. Antenna pattern and location


          Antenna Pattern and New Location

                      15n_Textanterna



Document Created: 2017-12-11 13:48:22
Document Modified: 2017-12-11 13:48:22

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