GPS Timing Industry Already Has Potential Fixes to LTE Interference, LightSquared Says

LightSquared is happy to incorporate GPS network timing devices into its GPS/LTE compatibility testing if need be, though it and the GPS timing industry have already looked deeply into that issue and even come up with fixes, LightSquared said in an ex parte presentation posted Tuesday in FCC docket 12-340. The filing included LightSquared's Transportation Department filing as that agency took comments on DOT's proposed test plan to evaluate interference potential between LightSquared's proposed wireless broadband network and GPS devices -- a test plan LightSquared was highly critical of (see 1510210022). The test plan "establishes that DOT refused to measure what counts: the impact of any interference on performance of the device," LightSquared said Tuesday. Along with repeating those criticisms of DOT, LightSquared's latest filing was aimed at issues raised by the Alliance for Telecommunications Industry Solutions (ATIS) in its DOT filing on GPS timing devices. ATIS member Alcatel-Lucent notified its customers about a new antenna that could resolve any adjacent band interference issues -- that notification springing from talks with LightSquared, it said.