英文_美国国家电信和信息管理局_美国国家电信和信息管理局委托编写的报告研究了射频接收器在提高频谱效率方面的作用_141页_2mb

Executive Summary
This report examines the challenges and opportunities for improving receiver interference immunity performance. Key findings highlight that receiver performance alone cannot ensure coexistence between adjacent-band services due to practical limitations in size, weight, power, and cost (SWAP-C). Recommendations include case-by-case mitigation strategies, policy statements, and collaboration with regulators to address spectrum repurposing and interference issues.

What the Report Does
The study explores technical and non-technical mechanisms to enhance receiver performance, including emerging technologies, best practices, and policy incentives. It provides a foundation for developing strategies to mitigate interference in diverse spectrum environments, with a focus on federal systems and dynamic spectrum use.

Key Findings

1. Receiver Limitations: Despite advancements, receivers cannot universally reject interference due to SWAP-C constraints, linearity trade-offs, and frequency-dependent rejection challenges.
2. Mitigation Shortcomings: Traditional spectrum management approaches (e.g., transmitter limits) are often necessary in addition to receiver enhancements.
3. Dynamic Spectrum Needs: Increasing demand for spectrum requires balancing technical solutions with regulatory, economic, and policy mechanisms.
4. Collaborative Efforts: Addressing interference issues requires partnerships between federal agencies, industry, and international bodies like the FCC and EU’s RED.

Recommendations

1. Case-by-Case Mitigation: Prioritize bands being repurposed and implement receiver immunity enhancements tailored to specific applications.

   • Incorporate performance improvement costs into transition plans.
   • Assess fielded equipment inventories and benchmark best practices.

2. Policy Development:

   • Issue a formal NTIA policy statement to support receiver performance improvements and explore reimbursement mechanisms.
   • Enhance data transparency and enforce standards to enable advanced analytics.
   • Conduct a companion study on transmitter performance to complement receiver-focused efforts.
   • Recommend adherence to best practices and industry standards for federal procurement.

3. Non-Technical Approaches:

   • Leverage incentives (e.g., Spectrum Relocation Fund subsidies) and decentralized negotiations to offset upgrade costs.
   • Define harm claim thresholds and risk-based policies to optimize spectrum use.
   • Foster industry collaboration to share data and develop dual-use technologies.

Summary of Report
The analysis underscores the need for a multi-pronged approach to receiver performance, combining technical innovations, regulatory guidance, and economic incentives. While receivers cannot resolve all coexistence issues, strategic measures can significantly improve spectrum efficiency and reliability.