Description of Research Project

1735-EX-ST-2019 Text Documents

CCO Fiberlink, LLC

2019-09-17ELS_237965

File No. 1735-EX-ST-2019 DESCRIPTION OF RESEARCH PROJECT Pursuant to Sections 5.3(j) and Section 5.61 of the Federal Communications Commission’s rules, 47 C.F.R. §§ 5.3(j) and 5.61, CCO Fiberlink, LLC (“Charter”), a limited liability company and subsidiary of Charter Communications, Inc., seeks Special Temporary Authority (“STA”) for 180 days, beginning September 30, 2019, or immediately upon grant, to test and evaluate 5G using mid-band spectrum. As part of its efforts to lead the industry in broadband innovation, Charter intends to conduct fixed wireless experiments in the 3.7 GHz and 2.5 GHz bands. The proposed operations will advance Charter’s understanding of 5G technology and network potential in mid-band spectrum and will advance the potential deployment of 5G fixed and mobile services. Location and Description of Testing Charter will conduct the proposed test within 10 kilometers of three fixed locations in the Keystone, Iowa area (at 42° 1' 10.833" N, -92° 8' 36.9456" W; 42° 1' 20.208" N, -92° 11' 45.8124" W; and 42° 2' 11.4036" N, -92° 7' 45.015" W). These experiments will evaluate the 5G frequencies and technologies for their use in point-to- multipoint access network capacity (e.g., rate versus range) and data throughput. The ultimate goal of these tests is to research the techniques and efficacy of fixed wireless rural broadband and mobile solutions in the mid-band 5G frequencies. The tests will utilize fixed transmitters with a 10 km or smaller effective radius. Due to limited use of the requested band in the proposed location, Charter does not anticipate that these experiments will cause harmful interference, and Charter will work closely with the equipment vendor to ensure no interference occurs. Radio Equipment Description For the testing, Charter will use multiple models of fixed equipment. The technical information below provides the greatest bandwidth and power levels intended to be used for each type of prototype equipment. ERP Mean Modulation EIRP Emission Frequency Equipment Tx Power or (dBm) (kW) Designator Tolerance Peak Prototype 1 53dBm/200 W 76 24.3 Peak 100MD7D 0.001% 256 QAM, 64 QAM, 16QAM, QPSK Prototype 2 53dBm/200 W 76 24.3 Peak 100MD7D 0.001% 256 QAM, 64 QAM, 16QAM, QPSK


Document Created: 2019-09-21 07:49:05
Document Modified: 2019-09-21 07:49:05
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