Wireless

摘要

The FCC Wireless Bureau sought comment on an AT&T petition asking for a waiver of commissionnrules for a test in south Florida of power spectral density (PSD) as an alternative to effective radiated power forndetermining base station power limits. AT&T requested the waiver in July (http://bit.ly/154X4It). AT&T proposesna PSD limit of 250 watts/MHz in non-rural areas and 500 watts/MHz in rural areas and offered a study itnsays shows that shifting to PSD-based power limits for the cellular service in the markets wouldn't cause harmfulninterference. “Offering cellular carriers the option to use a PSD measure for calculating cellular base stationnpower limits would eliminate unintended penalties on the deployment of advanced digital broadband modulationnschemes such as Long Term Evolution ... in the cellular bands,” AT&T said in the petition. “Grant of thenrequested relief would be in the public interest because: (i) the waiver would remove disparities between radio services that limit cellular carriers' ability to deploy the most efficient and advanced modulation techniques;nand (ii) the waiver would promote the deployment of mobile broadband services consistent with the policyngoals enumerated in the National Broadband Plan.” AT&T said the bureau sought comment last year on its earliernpetition for expedited rulemaking raising the same issue. “No carrier commenting on AT&T's proposednrule change opposed the proposed revision to the power limits rule,” AT&T said. “Verizon Wireless, whilenagreeing with AT&T's proposal, argued that even higher PSD limits should be adopted by the Commission.”nComments are due Sept. 23, replies Oct. 8 (http://bit.ly/16nLl16).