CSMAC Subcommittee Urges NTIA to Seek Comment on Bands Suitable for Sharing
The Commerce Spectrum Management Advisory Committee’s 5G Subcommittee recommends NTIA open one or a series of notices of inquiry or requests for information on bands that could be considered for sharing. Recommendations by the subcommittee are set for a vote…
Sign up for a free preview to unlock the rest of this article
Export Compliance Daily combines U.S. export control news, foreign border import regulation and policy developments into a single daily information service that reliably informs its trade professional readers about important current issues affecting their operations.
at a CSMAC meeting Friday. NTIA also should “develop a list of information that is needed for interference mitigation that would improve sharing,” the subcommittee said. “This list should include information about the legacy waveform and operation that is required to design and develop sharing approaches, and the information needed to co-exist.” The subcommittee said NTIA should ask the FCC to consider “a counterpart processes inquiry on which commercial bands and which technology steps should be considered for bi-directional sharing.” The report backs more use of beamforming, active antenna systems, MIMO and network/cooperative MIMO as ways to limit interference. NTIA should investigate these technologies “based on spectrum, technology, application, and functional requirements of the federal communication systems that [need] to share spectrum with ... non-federal entities,” the subcommittee said. NTIA also should “expedite” a workshop on bidirectional sharing, as recommended by CSMAC last year (see 1606080050), the group said. Bidirectional sharing would allow federal agencies access to some commercial bands. The group wants more concentration on receiver standards. “There are no regulations governing the design of wireless receivers, or their performance,” the report said. “Protection from noise and interference is achieved through stringent requirements for the performance parameters like ACS (adjacent channel selectivity), blocking characteristics, spurious response, and intermodulation response.” CSMAC also plans to consider a report by its Identifying Key Characteristics of Bands for Commercial Deployments and Applications Subcommittee. “The subcommittee recommends that NTIA give consideration to the following key characteristics when reviewing potential new spectrum bands for reallocation or use by the commercial industry: (1) propagation and coverage; (2) capacity; (3) contiguity; (4) international harmonization (scale); and (5) incumbency issues." It recommends against the agency “rigidly” defining what are low-, mid- and high-band spectrum bands “as this metric is dynamic and ever changing.”