Verizon Wants Flexible Approach to Protecting C-Band Incumbents; Qualcomm Weighs In
Verizon explained its stance on out-of-band emissions (OOBE) limits and other protections for C-band incumbents. The company backed a receiver protection threshold of -128 dBm/MHz to protect earth stations “rather than imposing across-the-board restrictive power levels and OOBE limits on…
Sign up for a free preview to unlock the rest of this article
Timely, relevant coverage of court proceedings and agency rulings involving tariffs, classification, valuation, origin and antidumping and countervailing duties. Each day, Trade Law Daily subscribers receive a daily headline email, in-depth PDF edition and access to all relevant documents via our trade law source document library and website.
all 5G transmitters,” posted Wednesday in FCC docket 18-122. That “would shift the responsibility of interference management away from static and overly-restrictive limits on base station/end-user equipment and onto 5G operators that can use dynamic and flexible network management techniques to locally modify network operations to protect earth stations,” Verizon said. The FCC adopted a similar approach to protect broadcast auxiliary services and cable TV radio services in the 2025-2110 MHz band from adjacent-channel AWS-1 services at 2110-2155 MHz, the carrier said in a call with Chief Julius Knapp and other staff from the Office of Engineering and Technology, plus the Wireless Bureau and Office of Economics and Analytics. Qualcomm discussed acceptable emissions limits in a call with OET and OEA staff. “Imposing less stringent OOBE limits on mobile devices that use the new C-Band will ensure robust 5G services while providing adequate protection of [fixed satellite service] receivers,” Qualcomm said. “The C-Band Alliance worked for many months with filter manufacturers to develop a 5G rejection filter with much-improved performance over the filtering on which the FCC’s [citizens broadband radio service] rules are based.”