SWIFT: Transceiver and algorithms for multiband mobile communications in co-existence with passive uses at millimeter wave spectra

移动宽带接入对无线频谱的需求推动了将频谱使用扩展到毫米波(毫米波)频率的需求，并引发了关于共享目前分配给被动用途(如卫星和被动传感器)的频谱的可行性的问题。该项目将研究与移动蜂窝服务共享这些毫米波频段的可能性。该项目分析了作为移动系统发射功率以及用户和基站密度的函数对这些频段内的被动传感器卫星造成的综合干扰，以评估共存的可行性。该项目将涉及设计一种新颖的双频毫米波无线收发机以及相关的联合功率控制、频率分配和连接分配算法，以确保在实现有效蜂窝通信的同时满足无源设备的频谱掩码。研究成果将作为任何5G/6G及以上移动收发信机设计、算法设计、集成和实现的基准，特别是在毫米波频率，有助于更小的外形尺寸和更高的功率设备，并在与其他无源用途共存的情况下扩大频谱使用。该项目旨在提高基础知识，并在硬件创新和算法设计方面对实际系统产生直接而重大的影响。在硬件方面，重点展示了一种可以在毫米波频谱上进行上行和下行两个频段的载波聚合的无线收发信机的新思想和新设计。这包括创新和新颖的电路架构，以实现和/或增强毫米波滤波器、功率放大器和低噪声放大器的性能。硬件研究的结果将是将所有这些组件集成到多层叠层基板中的完整前端毫米波双频收发器中，并通过广泛的模拟和原型制造进行验证。在算法设计上，提出的研究将解决在移动毫米波宽带网络与被动使用共存的背景下，功率控制、频率分配和用户关联(连接分配)的联合问题。算法设计考虑了在这些频段内对被动传感器卫星产生的聚合干扰，作为卫星足迹内移动用户和基站的发射功率和密度的函数。该算法还提供了用于偏置毫米波收发机中所建议的功率放大器的功率电平，并集成了所建议的滤波器以计算相邻频段中的干扰。这些硬件和算法创新有可能对未来的移动通信系统产生巨大影响。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

Demand on the wireless spectrum by mobile broadband access has driven the need for expanding spectrum usage to millimeter-wave (mmWave) frequencies and prompted the question on the feasibility of sharing spectra currently allocated to passive uses such as satellites and passive sensors. This project will investigate the possibility of co-sharing such millimeter-wave bands with mobile cellular services. The project puts forth the analysis of aggregated interference created to the passive-sensor satellites in these bands as a function of mobile system transmit power and densities of users and base stations to assess the feasibility of coexistence. The project will involve the design of a novel dual-band millimeter-wave wireless transceiver and associated joint power control, frequency allocation, and connections assignment algorithm to ensure meeting spectral masks to the passive devices while enabling effective cellular communications. Research results will serve as a baseline for any 5G/6G and beyond mobile transceiver design, algorithm design, integration, and implementation especially at mmWave frequencies, contributing to smaller form factor and higher power devices as well as expanding spectrum usage in co-existence with other passive uses.This project is aiming to advance the fundamental knowledge and have a direct and significant impact on practical systems in both hardware innovation and algorithm design. On the hardware front, the focus is to demonstrate new ideas and novel design of a wireless transceiver that can perform carrier aggregation of both uplink and two downlink frequency bands in millimeter-wave spectra. This includes innovative and novel circuit architectures to enable and/or enhance the performance of mmWave filter, power amplifier, and low noise amplifier. The result of hardware research will be the integration of all these components into a complete front-end mmWave dual-band transceiver in a multi-layer laminate substrate, verified with extensive simulations and prototyping fabrication. On the algorithm design, the proposed research will address the joint problem of power control, frequency allocation, and user association (connection assignments) in a mobile mmWave broadband network in the context of co-existence with passive uses. The algorithm design takes into account the aggregated interference generated to the passive-sensor satellites in these bands as a function of the transmit power and density of mobile users and base stations within the satellite’s footprint. The algorithm also provides power levels for biasing the proposed power amplifiers in the mmWave transceiver and integrates the proposed filters for computing interference in adjacent bands. These hardware and algorithm innovations have the potential for immense impact on future mobile communication systems.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.