mmWoC: A Novel Indoor Millimeter Wave Access Architecture

拟议的DG研究计划是关于5G NR和更远的移动通信系统中的一种新型室内毫米波(MmWave)接入架构，称为MmWoC。与集成回程接入(IAB)和模拟调制铜上无线电系统(ARS)相结合，拟议的MMWC架构通过在毫米波小蜂窝基站(MMSC)和室内无线电单元(IRU)的模拟中继将室外MMB与室内用户设备(IUE)互连。在MMBS和IUE之间的信号路径上使用CAT5/6/7电缆和全模拟处理，使其与所有同类解决方案相比，具有显著的成本效益和易于操作。通过将干扰缓解(IM)确定为推动拟议的MMWC成功的最重要任务，建议的研究计划将首先调查代表三个链路级联的复合无线电-电缆-无线电(R-C-R)多用户信道：MMBS-MMSC、MMSC-IRU和IRU-UE。基于所建立的信道模型，我们将重点研究在不同的Iue和系统运行条件下，下行链路(DL)和上行链路(UL)传输的相关预编码和多用户检测(MUD)技术。此外，我们考虑了在多个服务提供商(SP)下对MMBS池进行频谱分割的场景，其中我们将利用干扰回收(IRC)技术来保护SP之间的用户数据隐私。我们相信拟议的研究计划将为5G NR下室内系统的架构、操作和适用性的最新发展做出坚实的贡献，以及丰硕的HQP培训结果，这要归功于拟议的研究主题的多功能性，涵盖了现代移动通信系统的许多关键问题。

The proposed DG research program is on a novel indoor millimetre wave (mmWave) access architecture, called mmWoC, in 5G NR and beyond mobile communication systems. Incorporated with Integrated Backhaul Access (IAB) and Analog-modulated Radio over copper System (ARS), the proposed mmWoC architecture interconnects an outdoor mmBS with indoor user equipments (IUEs) via analog relaying at the mmWave Small Cell base station (mmSC) and indoor radio units (IRUs). The use of CAT5/6/7 cables and all-analog processing along the signal path between the mmBS and IUEs makes it significantly cost-effective and easy-to-operate compared to all its counterpart solutions. By identifying interference mitigation (IM) as the most important task to push the proposed mmWoC a success, the proposed research program will firstly investigate a compound radio-cable-radio (R-C-R) multi-user channels that represents the cascade of the three links: mmBS-mmSC, mmSC-IRU, and IRU-UE. Based on the channel models, we will focus on the development of relevant precoding and multi-user detection (MUD) techniques for the downlink (DL) and uplink (UL) transmissions, respectively, under various conditions of IUEs and system operations. Further, the scenario of spectrum slicing under multiple service providers (SPs) on a pool of mmBSs is considered, where we will leverage the technique of interference recycling (IRC) for the purpose of user data privacy preservation among the SPs. We believe the proposed research program will solidly contribute to the state-of-the-art regarding the architecture, operation, and applicability of indoor systems under 5G NR, as well as a fruitful HQP training result thanks to the versatile nature of the proposed research topics that cover a number of key issues of the modern mobile communication systems.