In comments filed with the FCC on Monday, representatives of the wireless industry urged the FCC to tread cautiously when evaluating the proposal of DISH Network to deploy a hybrid terrestrial-mobile satellite broadband network with spectrum acquired from TerreStar Networks and DBSD North America, Inc., warning that DISH’s planned operations could potentially interfere with wireless personal communications service (PCS) networks. Mirroring a similar request from LightSquared, LLC that was approved by the FCC last January, DISH asked the FCC in August to waive its mobile satellite service (MSS)/ancillary terrestrial component integrated service rule to permit DISH to operate a hybrid satellite-terrestrial broadband network via 40 MHz of MSS spectrum in the S-band. While asserting that waiver of the integrated service rule is needed to allow DISH to develop and operate single-mode terrestrial devices that would work on the hybrid network, DISH argued in its application that its proposal would not raise any of the GPS interference concerns that have become an issue in the LightSquared proceeding as its network would utilize S-band rather than L-band frequencies. Declaring, however, that DISH’s planned operations “would create the significant potential for harmful interference to incumbent PCS networks,” wireless association CTIA advised the FCC that DISH’s application “touches on important issues that should be addressed in a proceeding of general applicability, not in the limited context of a single party’s application.” Adding that the continuing LightSquared controversy “demonstrates the importance of identifying and resolving known interference concerns prior to taking action on a waiver petition,” CTIA urged the FCC “not to repeat here the mistakes made in the LightSquared proceeding.” Similarly, T-Mobile USA told the agency that, while it “recognizes the critical need for the FCC to make more spectrum available for terrestrial wireless services, “it “respectfully suggests that these issues are most appropriately addressed through a rulemaking proceeding.” Noting, “the applications provide little detail about DISH’s plans,” MetroPCS charged that “DISH fails to explain how it plans to obtain the necessary technical, operational and business expertise to operate a terrestrial network, as well as how it plans to compete against the nationwide wireless carriers.” MSS provider Globalstar, meanwhile, voiced support for DISH’s proposal, noting that “relief from the integrated services requirement and greater terrestrial flexibility in MSS spectrum would also make new spectrum capacity available for mobile broadband services, a step that would help address the nation’s urgent need for additional mobile broadband spectrum.”