This is getting interesting. After the recent news that federal testing determined LightSquared's LTE network plans would never work without interfering with GPS (and a cease to any further testing) LightSquared has come back with guns blazing. In a statement, the company has accused the GPS industry of rigging the results by using antiquated equipment, shrouding the entire process in secrecy, and using unrealistic parameters for failure. Jeff Carlisle, LightSquared’s Executive Vice President of regulatory affairs and public policy, Geoff Stearn, LightSquared’s Vice President for spectrum development, and Edmond Thomas, former chief engineer at the FCC held a press conference and had the following to say:
Testing was shrouded in secrecy, no transparency. The GPS manufacturers cherry-picked the devices in secret without any independent oversight authority in place or input from LightSquared. The GPS manufacturers and the government end users put non-disclosure agreements in place for the PNT EXCOM’s tests, preventing any input by an independent authority or from LightSquared before the tests began. This secrecy made it impossible for independent experts to properly oversee or challenge the process and results, thereby leaving taxpayers who paid for the testing no option but to take the PNT EXCOM’s word for it.
The testing protocol deliberately focused on obsolete and niche market devices that were least able to withstand potential interference. When LightSquared finally obtained a list of the devices tested, after all testing in this first phase of tests had been completed, it was able to determine that the testing included many discontinued or niche market devices with poor filters or no filters. The units tested represent less than one percent of the contemporary universe of GPS devices. In fact, the only mass market device alleged to “fail” during this round of testing performed flawlessly during the Technical Working Group testing, which used best practice protocols agreed to by all parties, thus raising doubts about the integrity of PNT EXCOM’s process.
The testing standard does not reflect reality. To guarantee favorable results, the PNT EXCOM selected an extremely conservative definition of failure – one dB of interference. Independent experts agree that a one dB threshold can only be detected in laboratory settings and has no impact on GPS positional accuracy or user experience. In fact, GPS devices are designed with the ability to withstand eight dB or more of loss of sensitivity due to man-caused and natural interference. By setting the definition of interference at one dB, the testing was rigged to ensure that most receivers would fail. It should be noted that PNT EXCOM and others have justified the one dB threshold by citing an International Telecommunication Union (ITU) standard. However, that standard explicitly states that it does not apply to general purpose GPS receivers.
They go on to say other great quotables like asking reporters to enquire if it's "fair that taxpayers funded a testing regime they cannot review?" and speaking of violating "conflict of interest" laws. They are serious, and should be. Earlier this month, LightSquared was given just 30 days to get regulatory approval by Sprint, who is a heavy investor and has (had?) plans to use LightSquared's service for their nationwide LTE roll-out. Losing funding from Sprint would be a major financial blow to LightSquared. We're pretty certain Sprint will still be able to roll out their LTE network as planned, but they see an advantage in using LightSquared and would like to see everything resolved as well.
Were the testing procedures rigged? Will LightSquared get another shot with different testing procedures? Will Sprint continue to invest in the company? Join us next week for another episode of the Guiding LightSquared. See the press release after the break.
Source: http://feedproxy.google.com/~r/androidcentral/~3/aCNxSLZrtS4/story01.htm
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