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Attachment App. Narrative

This document pretains to SES-LIC-INTR2019-00217 for License on a Satellite Earth Station filing.


              APPLICATION FOR BLANKET LICENSED EARTH STATIONS

    I.       OVERVIEW
         The Commission has authorized Space Exploration Holdings, LLC (“SpaceX”) to launch

and operate a constellation of 4,425 non-geostationary orbit (“NGSO”) satellites (call sign

S2983/S3018) using Ku- and Ka-band spectrum. 1 In doing so, the Commission recognized that

granting the SpaceX Authorization would “enable SpaceX to bring high-speed, reliable, and

affordable broadband service to consumers in the United States and around the world, including

areas underserved or currently unserved by existing networks.” 2                       SpaceX intends to begin

launching satellites to populate its constellation in 2019.

         In this application, a sister company, SpaceX Services, Inc. (“SpaceX Services”) seeks a

blanket license authorizing operation of up to 1,000,000 earth stations that end-user customers will

utilize to communicate with SpaceX’s NGSO constellation.                         These user terminals employ

advanced phased-array beam-forming and digital processing technologies to make highly efficient

use of Ku-band spectrum resources by supporting highly directive, steered antenna beams that

track the system’s low-Earth orbit satellites. Consistent with SpaceX’s space station authorization,

these earth stations will transmit in the 14.0-14.5 GHz band and receive in the 10.7-12.7 GHz

band. The Commission’s rules specifically contemplate blanket licensing for earth stations

operating in these frequency bands. 3 SpaceX Services seeks authority to deploy and operate these




1
    See Space Exploration Holdings, LLC, 33 FCC Rcd. 148 (2018) (“SpaceX Authorization”). SpaceX recently
    filed a modification application in which it proposes to relocate 1,584 satellites previously authorized to operate
    at an altitude of 1,150 km to an altitude of 550 km, and to make related changes to the operations of the satellites
    in this new lower shell of the constellation. See Application, IBFS File No. SAT-MOD-20181108-00083 (Nov.
    8, 2018).
2
    SpaceX Authorization, ¶ 1.
3
    See 47 C.F.R. § 25.115(f)(2).

                                                          1


earth stations throughout the contiguous United States, Alaska, Hawaii, Puerto Rico, and the U.S.

Virgin Islands.

          Below, we discuss certain spectrum sharing issues relevant to the operation of these earth

stations. We then demonstrate that grant of this application would serve the public interest. Lastly,

we provide technical information to supplement the information provided on Form 312. To

support its ambitious timetable for launching satellites and deploying broadband services, SpaceX

Services requests that the Commission grant the requested blanket license as expeditiously as

possible.


    II.      SPECTRUM SHARING ISSUES

          The Commission has allocated the Ku-band uplink band (14.0-14.5 GHz) that SpaceX

Services proposes to use for these blanket-licensed earth stations on a primary basis only to FSS.

However, certain portions of the downlink band are shared with other commercial and government

services. SpaceX has engineered its NGSO system design to achieve a high degree of flexibility

to facilitate spectrum sharing with other authorized satellite and terrestrial systems. SpaceX is

aware of its obligations under its Authorization to protect terrestrial and space systems in these

shared bands, particularly the applicable equivalent power flux-density (“EPFD”) limits set forth

in Article 22 and Resolution 76 of the ITU Radio Regulations and the applicable power flux-

density (“PFD”) limits set forth in the Commission’s rules and Article 21 of the ITU Radio

Regulations. 4 The Commission has found that compliance with these EPFD and PFD limits is

sufficient to protect GSO systems and terrestrial systems, respectively, against harmful




4
    See SpaceX Authorization, ¶¶ 40(b), (d), and (e); 47 C.F.R. § 25.115(f)(1) (incorporating certification requirement
    in 47 C.F.R. § 25.146(a)(2)).

                                                          2


interference. 5 In addition, SpaceX Services recognizes that its earth station operations will be

subject to certain sharing conditions. 6 SpaceX is confident that the highly advanced and flexible

capabilities of its NGSO system, including the earth stations proposed by SpaceX Services herein,

will be able to comply with these limitations.


    III.      GRANT OF THIS APPLICATION WOULD SERVE THE PUBLIC INTEREST

           Granting this application would serve the public interest by helping to speed broadband

deployment throughout the United States by authorizing the ground-based component of SpaceX’s

satellite system. U.S. and worldwide demand for broadband services and Internet connectivity

continues to increase with escalating requirements for speed, capacity, and reliability and ongoing

adaptations for usage. The volume of traffic flowing over the world’s networks has exploded, with

one report estimating that annual global Internet protocol traffic reached 1.5 zettabytes in 2017 –

meaning that approximately 1,500 billion gigabytes of data were exchanged worldwide last year. 7

           Yet, as the Commission has recognized, many communities across the United States and

the world still lack access to reliable broadband connectivity, preventing them from fully

participating in economic, social, and civic activities. 8 To help close this digital divide, SpaceX is


5
    See, e.g., Amendment of Parts 2 and 25 of the Commission's Rules to Permit Operation of NGSO FSS Systems
    Co-Frequency with GSO and Terrestrial Systems in the Ku-Band Frequency Range, 16 FCC Rcd. 4096, ¶ 77
    (2000) (concluding that implementation of EPFD limits “will adequately protect GSO FSS networks”); 47 C.F.R.
    § 25.289 (NGSO satellite systems that comply with EPFD limits will be deemed not to cause unacceptable
    interference to any GSO network); Amendment of Parts 2 and 25 of the Commission's Rules to Permit Operation
    of NGSO FSS Systems Co-Frequency with GSO and Terrestrial Systems in the Ku-Band Frequency Range, 16
    FCC Rcd. 4096, ¶ 42 (2000) (observing PFD limits should protect terrestrial systems in the band).
6
    See, e.g., 47 C.F.R. §§ 25.115(f)(2); 25.208(o); 101.1409; 2.106 footnote 5.487A; and 2.106 footnote 342. See
    also SpaceX Authorization, ¶ 37 (requiring SpaceX to take note of NASA TDRS facilities at three locations). In
    addition, pursuant to Section 25.115(i), SpaceX Services hereby certifies that it is planning to use a contention
    protocol (TDMA/FDMA), and such protocol usage will be reasonable.
7
    See Cisco Visual Networking Index: Forecast and Methodology, 2017-2022, at 1 (Nov. 26, 2018), available at
    https://www.cisco.com/c/en/us/solutions/collateral/service-provider/visual-networking-index-vni/white-paper-
    c11-741490 html.
8
    See, e.g., Inquiry Concerning the Deployment of Advanced Telecommunications Capability to All Americans in
    a Reasonable and Timely Fashion, 33 FCC Rcd. 1660, ¶ 50 (2018) (noting that “over 24 million Americans still

                                                         3


designing, constructing, and deploying an innovative, cost-effective and spectrum-efficient

satellite system capable of delivering robust broadband service to customers around the world.

SpaceX has already secured U.S. authority for the space station components of its NGSO system.

This application takes the next step by seeking authority for the end-user customers’ earth stations

that incorporate advanced technologies to enable highly efficient use of the spectrum and enhance

the customer’s broadband experience. Accordingly, an expeditious grant of this application would

serve the public interest.

                                                       Respectfully submitted,

                                                       SPACE EXPLORATION HOLDINGS, LLC


                                                       By: _/s/ Tim Hughes________
                                                           Tim Hughes
 William M. Wiltshire                                      Senior Vice President, Global Business
 Paul Caritj                                                 and Government Affairs
 HARRIS, WILTSHIRE & GRANNIS LLP                           Patricia Cooper
 1919 M Street, N.W.                                       Vice President of Satellite Government
 Suite 800                                                   Affairs
 Washington, DC 20036
 202-730-1300 tel                                      SPACE EXPLORATION TECHNOLOGIES CORP.
 202-730-1301 fax                                      1155 F Street, NW
                                                       Suite 475
 Counsel to SpaceX                                     Washington, DC 20004
                                                       202-649-2700 tel
                                                       202-649-2701 fax




   lack fixed terrestrial broadband at speeds of 25 Mbps/3 Mbps,” and that “the gap in rural and Tribal America
   remains notable: 30.7 percent of Americans in rural areas and 35.4 percent of Americans in Tribal lands lack
   access to fixed terrestrial 25 Mbps/3 Mbps broadband”). Internationally, the disparities between broadband access
   and absence are even greater, with 4.2 billion people (or 57% of the world’s population) offline. See BROADBAND
   COMMISSION FOR SUSTAINABLE DEVELOPMENT, “Open Statement from the Broadband Commission for
   Sustainable Development to the UN High-Level Political Forum (HLPF)” (July 11, 2016), available at
   http://broadbandcommission.org/Documents/publications/HLPF-July2016.pdf.             See     also     BROADBAND
   COMMISSION FOR SUSTAINABLE DEVELOPMENT, “The State of Broadband 2015,” at 8 (Sep. 2015), available at
   http://www.broadbandcommission.org/Documents/reports/bb-annualreport2015.pdf (“A large body of evidence
   has now been amassed that affordable and effective broadband connectivity is a vital enabler of economic growth,
   social inclusion and environmental protection.” (footnotes omitted)).

                                                        4


                                              TECHNICAL ANNEX

        In this Technical Annex, SpaceX Services provides additional information on the proposed

operations of its blanket-licensed earth stations to supplement the data provided in Schedule B to

Form 312 filed with this narrative application. 1

    A. Minimum Elevation Angle

        SpaceX Service’s user terminals will communicate only with those SpaceX satellites that

are visible on the horizon above a minimum elevation angle. In the very early phases of

constellation deployment and as SpaceX first initiates service, this angle may be as low as 25

degrees, 2 but this will return to 40 degrees as the constellation is deployed more fully and more

satellites are in view of a given end-user. For purposes of this application, SpaceX Services has

supplied the lower angle in order to capture the full potential range of service.

    B. Power and Gain Figures

        The proposed user terminal is a flat phased array capable of steering its beams to track

SpaceX’s NGSO satellites passing within its field of view. As the terminal steers the transmitting

beam, it also adjusts the power to maintain a constant level at the receiving antenna of its target

satellite, compensating for variations in antenna gain and path loss associated with the steering

angle. At the phased array’s equivalent of an “antenna flange,” the highest transmit power (4.06

W) occurs at maximum slant, while the lowest transmit power (0.76 W) occurs at boresight. 3

Similarly, the highest EIRP for all carriers (38.2 dBW) occurs at maximum slant and the lowest



1
    To the extent relevant, SpaceX Services hereby incorporates the technical information submitted with SpaceX’s
    space station applications. See IBFS File Nos. SAT-LOA-20161115-00118, SAT-LOA-20170726-00110, and
    SAT-MOD-20181108-00083.
2
    Operation at elevation angles below 40 degrees is achieved by tilting the antenna.
3
    There is no difference in transmit power between CP terminals at the center or edge of the spot or between clear
    sky or heavy rain conditions.

                                                       A-1


level (33.4 dBW) occurs at boresight. Conversely, the antenna gain is highest at boresight (33.2

dBi and 34.6 dBi for the receive and transmit antennas, respectively) and lowest at maximum slant

(30.6 dBi and 32.0 dBi for the receive and transmit antennas, respectively). For purposes of Form

312 accompanying this application, SpaceX Services has supplied the higher transmit power

figures and lower gain figures in order to present worst-case conditions.

    C. Antenna Patterns

        Section 25.209 of the Commission’s rules imposes reference antenna pattern requirements

for certain satellite earth stations. Most of these relate to earth stations communicating with GSO

systems, as the rule was developed to facilitate GSO-to-GSO sharing where a constant level of

interference is present. 4 Over the last two decades, the Commission has repeatedly declined to

adopt similar antenna reference pattern for use in licensing NGSO user terminals. In doing so, it

has “recognize[d] that there are physical limitations on the amount of sidelobe suppression

achievable in small earth station antennas,” and concluded that “[w]e do not see a need at this time

to specify an NGSO FSS customer premises earth station reference antenna pattern.” 5 Moreover,

it has expressed its concern “that imposing an antenna reference pattern will increase the cost for

NGSO FSS user terminals and create additional regulatory burdens,” 6 and found “little evidence

that imposing such an antenna reference pattern on NGSO FSS user Earth stations would

significantly improve [spectrum] sharing.” 7 The Commission recently confirmed that it “has not


4
    See Amendment of Parts 2 and 25 of the Commission's Rules to Permit Operation of NGSO FSS Systems Co-
    Frequency with GSO and Terrestrial Systems in the Ku-Band Frequency Range, 16 FCC Rcd. 4096, ¶ 81 (2000)
    (“Ku-Band NGSO Order”). But see 47 C.F.R. § 25.209(h) (specifying performance standards for transmitting
    gateway earth stations operating with Ku-band NGSO systems).
5
    See, e.g., Ku-Band NGSO Order, ¶ 240.
6
    Establishment of Policies and Rules for the Non-Geostationary Satellite Orbit, Fixed Satellite Service in the Ku-
    Band, 16 FCC Rcd. 9680, ¶ 48 (2001).
7
    Establishment of Policies and Rules for the Non-Geostationary Satellite Orbit, Fixed Satellite Service in the Ku-
    Band, 17 FCC Rcd. 7841, ¶ 60 (2002).

                                                       A-2


yet determined what off—axis gain envelopes might be appropriate for earth stations operating with

NGSO FSS space stations, either to facilitate NGSO—to—NGSO or NGSO—to—GSO interference

protection.""

        Accordingly, the Commission‘s earth station licensing rules that are predicated on antenna

performance standards do not apply to this application. For example, Section 25.132 of the

Commission‘s rules provides thatapplications for transmitting FSS earth stations must include a

certification that the applicant has reviewed the results of a series of radiation pattern tests

performed on representative equipment in representative configurations, and the test results

demonstrate that the equipment meets relevant off—axis gain standards in Section 25.209. Since

no such standards apply to the user terminals in this application, no such certification is required."

        Although no antenna performance requirements apply, SpaceX Services provides the half

power beamwidth forits proposed earth stations in Table 1 below.




                   Receive (11.7 GHz)                          3.5°                5.5°

                   Transmit (14.25 GHz)                        2.8°               4.5°

                                    Table 1. Half Power Beamwidth

In addition, the EIRP mask for its proposed earth stations, for both co—polarized and cross—

polarized signals, are as follows:




5   Comprehensive ReviewofLicensing and Operating Rules for Satellite Services, 30 FCC Red. 14713, § 213
    (2015). See also Update to Parts 2 and 25 Concerning Non—Geostationary, Fixed—Satellite Service Systems and
    Related Matters, 32 FCC Red. 7809, 5§ 54—55 and n.121 (2017) (declining to adopt NGSO earth station antenna
    performance standards).
*   Nonetheless, in response to Item E16 on Schedule B to Form 312. SpaceX Services has responded "no" to the
    question of whether its earth stations will comply with the antenna gain pattems specified in Section 25.209 —
    even though those patterns are inapplicable.

                                                      A3


                                 EIRP mask
             10
dBw/aokttz




                  20   a0   so      so        100   120   140   160   180
                                          [deg]

                            EIRP mask (cross—pol)
dsw/aokHtz




                  20   «0   so      so        100   120   140   160   180
                                         ® [deg]



Document Created: 2019-02-01 15:05:39
Document Modified: 2019-02-01 15:05:39

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