15 | U.S. to free up 100 MHz of mid-band spectrum for 5G (簡訳:5G向けに100 MHzのミッドバンドスペクトルを解放する米国) | ----------- | |
FierceWireless: Wireless | 2020-08-11 09:00 | ????0? | |
In contrast, U.S. 5G auctions have largely focused on high-band millimeter wave spectrum, which offers massive capacity but the tradeoff of limited coverage with signals that don’t penetrate well and are easily obstructed. Operators including AT&T and T-Mobile already launched 5G services using low-band spectrum for nationwide coverage. Verizon’s focused 5G deployments on mmWave, but has signaled plans to launch broader 5G coverage on low-band, using dynamic spectrum sharing (DSS) technology. The FCC is in the middle of an auction for 70-megahertz of priority access licenses (PALs) in the shared 3.5 GHz CBRS band, which topped $3 billion in gross proceeds Monday afternoon. There’s 150-megahertz available for commercial use within the CBRS band’s unique three-tier sharing paradigm that protects federal incumbents. That includes 80 MHz already available for general authorized access (GAA) use. An auction for 280-megahertz of licensed C-band spectrum is slated for December.“Spectrum is finite, and it must be shared if Americans are to gain the full benefits of wireless broadband. The CBRS band shows that a viable framework can be employed to do so – one which both protects national security and allows for commercial use. We want to thank all involved for working through the numerous complex technical arrangements to make available this valuable mid-band spectrum,” stated Aiken.“We are pleased that the White House has led the Department of Defense and the National Telecommunications and Information Administration to support commercial access in the upper 100 MHz of the 3.1-3.55 GHz band, at full commercial power. Mid-band spectrum, including 3.45-3.55 GHz, is important for the deployment of 5G in the United States,” Pearson stated, adding that many countries globally have agreed on spectrum between 3.3-3.8 GHz for 5G deployments as a sweet spot.NTIA’s earlier report identifying the 100-megahertz between 3.45-3.55 GHz as a “good candidate for sharing,” received tempered industry applause, with groups indicating more was needed. 5G Americas at the time noted more than 70 countries around the world agreed to target 5G spectrum at 3.3 GHz and up “often with 200, 300 or more MHz of spectrum.” -- ???????? | |||
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