Statement in Support of Request

0098-EX-RR-2010 Text Documents

DigitalBridge Spectrum Corp.

2010-04-05ELS_105987

                                                                        DigitalBridge Spectrum Corp.
                                                                                            Form 442
                                                                                          Page 1 of 3

                            Request for Experimental Station Authorization

         DigitalBridge Spectrum Corp. (DBC)1 hereby seeks an extension of temporary
authorization WE2XZI, to perform a limited market study2 on vacant Broadband Radio
Service (BRS) spectrum until such time as the Commission grants DigitalBridge Spectrum II,
LLC’s (“DBII”) license for BR-BTA373 it won at auction,3 or for a period of up to 12
months to test a fully mobile, WiMAX-compliant 802.16e system in Richmond, Indiana, a
rural community DBC presently serves with a fixed WiMAX system. DBII’s BRS BTA
authorization will cover the same geographic area as that authorized pursuant to the STA.4
Submitted pursuant to Section 5.63 of the FCC’s rules,5 this statement explains the complete
details about DBC’s proposed operation, a description of the equipment, and the specific
objectives. DBC respectfully requests expedited review and grant of its request to perform a
limited market study.

        DBC is testing a fully mobile, WiMAX-compliant 802.16e system utilizing 8 vacant
BRS channels at five separate sites. At each site, DBC installed one, three sector base station
with up to 4 Watts of transmit power per sector covering approximately an eleven kilometer
radius. Applicant uses Time Division Duplex (TDD) technology that transmits and receives
on a 5 or 10 MHz channel. DBC’s tests determine which is more efficient. DBC utilizes
WiMAX-compliant 802.16e equipment by Alvarion.6 DBC testing includes the following:

                 •     procedure for software and configuration upgrade to customer premise
                       equipment;
                 •     propagation analysis of 2nd and 4th order diversity sectors;
                 •     throughput testing of mobile and nomadic devices across all available
                       modulation levels;
                 •     frequency reuse capabilities and self-interference analysis;
                 •     aggregate sector throughput testing;
                 •     intra-base-station and inter-base-station mobile handover performance; and


1It is DBC’s mission to use wireless broadband technology, WiMAX, to bring advanced wireless broadband
services to rural and underserved communities nationwide. DBC’s mission and execution are unique in the
U.S. today. Since launching service in 2007, DBC has deployed wireless broadband services in 14 rural
communities. Today, DBC serves over 20,000 rural subscribers with wireless broadband, wireless voice and
wireless video service.
2   47 C.F.R. §§5.3(j), 5.93.
3 Auction of Broadband Radio Service Licenses Closes, Winning Bidders Announced for Auction 86, Public

Notice, 24, FCC Rcd 13572 (2009). An affiliate of DBC, DigitalBridge Spectrum II, LLC, was the high bidder
for BRS License BR-BTA373, Richmond, IN.
4 DBII’s auction application was timely filed, all payments were timely made, the application has been accepted

for filing, and the accepted for filing Public Notice period ended with no petitions to deny or informal
objections being filed against the application. See ULS File No. 0004040685.

5   47 C.F.R. §5.63.
6   Equipment specifications are attached to this application.



5009768.04


                                                                        DigitalBridge Spectrum Corp.
                                                                                            Form 442
                                                                                          Page 2 of 3

                 •      quality of service tests to validate the ability to deliver voice and video
                        applications.

         Alavrion’s WiMAX-compliant 802.16e equipment utilizes the IEEE 802.16e
standard. In addition to the increased benefits of mobility, this equipment provides a higher
broadband capacity and ability to serve more customers in the market. It will also provides
the ability to support 802.16e standardized devices at a reduced cost, increased availability to
subscribers, and the capability to provide roaming between other 802.16e networks.

         The FCC’s rules allow experimental testing, such as the tests the Applicant is
conducting, for the purpose of performing limited market studies.7 The FCC’s rules allow
testing for a period of either two or five years.8 In order to achieve the necessary test results,
DBC was granted a temporary authorization for 12 months.9 DBC requests an extension of
this authority so it may continue its tests because the FCC has not yet granted DBII’s BRS
BTA license it won at auction for Richmond, Indiana. Once the auction authorization is
granted, DBC will no longer need temporary authorization because it will be able to
seamlessly transition its testing and new services to the auction authorization.

          As required by the FCC’s limited market study rule, Applicant owns all the
equipment that will be utilized in its tests.10 Applicant will also inform all participants in the
testing that the service or device is granted under an experimental authorization and is
strictly temporary.11 As a part of its request for experimental authorization, Applicant also
requests an exemption from the FCC’s station identification rule.12 Section 5.115 of the
FCC’s rules requires that an experimental station transmit its assigned call sign at the end of
the each complete transmission in clear voice or Morse code. Similar to all other digital
cellular technology, Applicant’s proposed digital cellular equipment is incapable of station
identification in accordance with Section 5.115. Therefore, Applicant requests that the terms
of its experimental authorization provide an exemption from the FCC’s station identification
rule.
          In addition to the technical benefits of DBC’s proposed test and limited market
study, public interest justifies grant of the requested extension of DBC’s experimental
authorization. The test and limited market study are enhancing the development, extension,
utilization and adoption of mobile WiMAX technology in rural, heavily treed areas. This is
the first deployment of its kind in the rural Midwest.

         At this time, DBC only has access to the D-group channels in Richmond, which it
leases from Ball State University (Ball State). The excess capacity leased to DBC on this

7   47 C.F.R. § 5.93.
8   47 C.F.R. § 5.71.
9   See 47 C.F.R. § 5.71(b).
10   47 C.F.R. § 5.93(a).
11   47 C.F.R. § 5.93(b).
12   47 C.F.R. § 5.115.



5009768.04


                                                                      DigitalBridge Spectrum Corp.
                                                                                          Form 442
                                                                                        Page 3 of 3

channel group is fully utilized and provides the current generation of WiMAX wireless
broadband service – a fixed service – to the community. These channels cannot be used,
simultaneously to test a mobile WiMAX service in Indiana. However, there is ample vacant
spectrum in Richmond, Indiana, including the E-group and F-group channels. DBII is the
BTA license high bidder for the Richmond, Indiana BTA (BTA 373). There is only one
licensee, Ball State, in BTA 373 and DBC currently leases this spectrum. DBC is the only
broadband provider with operations in the Richmond, Indiana area and several surrounding
markets. If this request is expeditiously granted, DBC will be able to continue testing mobile
WiMAX service and transition its operations to DBII’s auction authorization.

        In addition to testing the limits of current mobile WiMAX technology in a rural,
heavily-treed environment, the test and limited market study continues to reap substantial
benefits. DBC is already providing fixed wireless broadband services to about 1,000
customers in Richmond. DBC sales in Richmond have been very strong, as the other
broadband providers in the area have limited coverage, poor service quality, and high prices.
This test and limited market study bring to Richmond the same advanced, wireless WiMAX
services that residents of more populated areas already enjoy. DBC plans to deploy in rural
markets the mobile services that are similar to the services Clearwire has deployed in
Baltimore, Chicago, Portland and Washington, D.C.13 Mobile wireless broadband will be
deployed in the 2.5 GHz band nationwide,14 and DBC wants its systems and its customers to
be ready for this next generation of service when it is nationally deployed.

         There is sufficient precedent for the FCC allowing use of fallow 2.5 GHz spectrum
to provide wireless broadband service in rural areas.15 In addition, no other licensee would
be negatively affected by granting DBC this experimental license. Clearwire is the only other
carrier that provides service in adjacent markets in Indiana. Due to the nature of DBC’s
proposed tests and the location of the testing, DBC can conduct experimental testing
without causing harmful interference to adjacent users. Of course, if any interference results
from DBC’s tests, it would take whatever remedial actions the FCC requires.




13 In the Matter of Sprint Nextel Corporation and Clearwire Corporation, Application for Consent to Transfer

Control of Licenses, Leases and Authorizations, Memorandum Opinion and Order, 23 FCC Rcd 17570 (2008)
(Clearwire Order).
14   See Clearwire Order, ¶ 42.
15 See In the Matter of Gateway Telecom LLC d/b/a StratusWave Communications, Applications For New

Educational Broadband Service Stations on the A and B Group Channels in Centerville, Ohio; and A and B
Group Channels in Arden, West Virginia, Memorandum Opinion and Order, 22 FCC Rcd 15789, ¶ 13 (2007)
(StratusWave Order).; see also Choice Communications, LLC Request for Special Temporary Authority, ULS
File No. 0003487551, granted on October 27, 2008; Board of Trustees of Northern Michigan University
Request for Special Temporary Authority, ULS File No. 0003187729, granted on October 23, 2007; Nextel
Spectrum Acquisition Corp. Request for Special Temporary Authority, ULS File No. 0002940367, granted on
March 21, 2007; Choice Communications LLC, 20 FCC Rcd 10906, ¶ 15 (2005).



5009768.04



Document Created: 2010-04-05 17:03:37
Document Modified: 2010-04-05 17:03:37

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