与频谱共享试验台相关的机会

OPPORTUNITIES RELATING TO THE SPECTRUM SHARING TEST BED SUMMARY The Test-Bed program was proposed as a vehicle for achieving the objectives embodiedin the President's Spectrum Policy Initiative (SPl), including the more efficient use ofspectrum, the rapid deployment of new and innovative technologies, and addressing the spectrumneeds associated with critical government functions, such as national security, homelandsecurity, and public safety. Consistent therewith, the Test-Bed should be used to evaluatetechnologies that foster these objectives. The goal of the Test-Bed program was clearly spelled out by the Department ofCommerce - to study the feasibility of federal and non-federal users sharing the same spectrum.The NTIA NOI proposed eight criteria that should be used to determine whether a particulartechnology or application were suitable for the Test-Bed program. The Committee agrees withthese selection criteria. There can be no question that the President and NTIA have recognized the fundamentalimportance of broadband to our national economic and homeland security development.Extensive comments in the NTIA record and in the President's Technology Agenda underscorethis point. Thus broadband should be a component of any technology chosen for deployment inthe Test-Bed program, to the extent feasible. Nonetheless there are numerous governmentoperations, including telemetry and radars, that may be able to more efficiently use the spectrumresource without a broadband solutionTherefore,althoughtheuse of broadbandtechnologiesare quite valuable and are generally preferred, the federal government may also benefit from testbed applications that improve the efficiency of narrowband technologies. Based on its review of the record and additional materials provided to the Committee,four specific technologies and services have been identified for the Test-Bed to date: dynamicspectrum access; multi-antenna signal processing (MAs"); airborne video; and mobile satelliteservice with an ancillary terrestrial component ("MSS/ATC"). As set forth below, each of thesetechnologies/services was evaluated under the eight selection criteria and only two - dynamicspectrum access and multi-antenna signal processing --- satisfied each of the criteria. Dynamicspectrum access includes both terrestrial and airborne applications. Accordingly, the Test-Bedprogram should ultimately address these technologies.TotheextentmultipleTest-Bedsareavailable, however, providing airborne video and MsS/ATC proponents access to a Test-Bedalso would be consistent with the objectives of the President's SPI, especially the goal ofmaintaining United States global leadership in communications technology. NTiA, in assessingeach Test-Bed proposal, should not limit itself to any one family of technologies or anyparticular company's form of technology. The record demonstrates overwhelming support for the formation of multiple Test-Bedsand this approach would best accomplish the SPI objectives. Participation of federal users isessential, also, because the goal of the Test-Bed is to evaluate technologies that would fosterspectrum sharing between federal government and non-federal government users. Unfortunatelyit is unlikely that federal users will have the technical staff to support multiple Test-Beds. TheCommittee thus recommends that NTIA evaluate whether these staffing and resource issuescould be resolved by allowing private sector participants to bear the costs associated with theTest-Bed, allowing some testing to occur without federal government staffing, or seekingadditional appropriations or reallocating funding to support multiple Test-Beds (including thenecessary federal staffing). As with the number of Test-Beds, the number of participants will be determined by theresources available for monitoring and participating in the Test-Bed evaluation process. TheCommittee recommends permitting the maximum number of participants possible given theavailableresources. The Test-Bed program is an outgrowth of the SPI which seeks to “promote the moreefficient and beneficial use of spectrum without harmful interference" to incumbent licensees.Consistent with this objective, Test-Beds should be implemented in a manner that protectsincumbent licensees. One way to facilitate this goal initially is to deploy Test-Beds in areaswhere there are few incumbencies and limited complexity.Depending on the nature of thedeployment, this first phase could be completed in a private laboratory environment or as part ofthe official test bed program. The FCC has indicated that one advantage to such an approach isthat the risk of causing harmful interference to an incumbent licensee is reduced.If this initialphase proves successful, then a second phase would be conducted in environments withsufficient density of traffic to produceneaningful real-worid results useful to futuredeployments. This requires an analysis of both spectrum bands and geography. The Committeethe Test-bed are