| Title | Assessment of LightSquared Terrestrial Broadband System Effects on GPS Receivers and GPS-dependent Applications |
|---|---|
| Record ID | 39993 |
| Personal Name Creator |
Steiner, Steve; Bunce, Deane |
| Corporate Creator | National Space-Based Positioning, Navigation, and Timing; United States. Department of Transportation. Federal Aviation Administration |
| Corporate Contributor |
John A. Volpe National Transportation Systems Center (U.S.) |
| Publisher | United States. Department of Commerce |
| Publication Date | 20110601 |
| Language | English |
| Abstract | The Executive Steering Group (ESG) of the National Executive Committee (EXCOM) for Space-Based Positioning, Navigation, and Timing (PNT) directed the National Space-Based PNT Systems Engineering Forum (NPEF) to conduct an assessment of the effects of LightSquared’s planned deployment of a terrestrial broadband network to Global Positioning System (GPS) receivers and GPS-dependent systems and networks. The NPEF was tasked to engage with the LightSquared Working Group established at the direction of the Federal Communications Commission (FCC), and the GPS manufacturing and applications communities through relevant industry bodies (e.g., the U.S. GPS Industry Council and RTCA, Inc.). The NPEF investigated and determined effects due to interference to a selected set of GPS receivers in operationally relevant scenarios from LightSquared’s planned deployment for Ancillary Terrestrial Component (ATC) transmitters to utilize the mobile-satellite service (MSS) bands as follows: i) 1550.2 – 1555.2 MHz for Phase 0; ii) 1526.3 – 1531.3/1550.2 – 1555.2 MHz for Phase 1; and iii) 1526 – 1536/1545.2 – 1555.2 MHz for Phase 2. While the NPEF tasks were conducted in coordination with all involved entities to the extent possible, the NPEF report is considered to be an independent assessment. The contents of this Report consist of a compilation of findings from nine subtasks along with appendices that include summaries of all of the detailed test data and results collected over the last four months via a series of laboratory and field environment testing of GPS receivers. This Report is a technical summary of the work conducted during this effort and includes specific recommendations and responses to questions as requested by the EXCOM. Based on analysis described in the main body of this Report, the NPEF has developed the following recommendations for ESG consideration. |
| Rosap ID | dot:9250 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/9250 |
| TRT Terms | Global Positioning System; Broadband |
| General Subjects | Global Positioning; Broadband; LightSquared |
| Classification | NTL - GEOGRAPHIC INFORMATION SYSTEMS - GEOGRAPHIC INFORMATION SYSTEMS |
| Geographical Coverage |
United States |
| TRIS Online Accession No |
1351758 |
| Availability | Volpe National Transportation Systems Center, Technical Reference Center |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/39000/39900/39993/July_6__2011__NTIA_FCCletter_LightSquared_GPS_07062011.pdf |
| Format | |
| Database | NTL Digital Repository |