论文标题
5G NR-LTE共存：机会，挑战和解决方案
5G NR-LTE Coexistence: Opportunities, Challenges, and Solutions
论文作者
论文摘要
5G新广播（NR）有望支持各种服务，例如增强的移动宽带（EMBB），超级可靠的低延迟通信（URLLC）和庞大的机器类型通信（MMTC）。这需要频谱，其中大多数被4G长期演化（LTE）占据。因此，预计网络运营商在迁移到NR时使用现有的LTE基础架构部署5G。此外，运营商必须在迁移期间支持旧的LTE设备，因此LTE和NR系统将在可预见的未来共存。在本文中，我们从对这两种无线电访问技术进行审查开始介绍LTE-NR共存。然后，我们描述了第三代伙伴关系项目（3GPP）为解决共存问题并分类主要共存方案的贡献。最后，我们引入了一种新型的频谱共享方案，可以应用于正在研究的共存方案。
5G New Radio (NR) promises to support diverse services such as enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC), and massive machine-type communication (mMTC). This requires spectrum, most of which is occupied by 4G Long Term Evolution (LTE). Hence, network operators are expected to deploy 5G using the existing LTE infrastructure while migrating to NR. In addition, operators must support legacy LTE devices during the migration, so LTE and NR systems will coexist for the foreseeable future. In this article, we address LTE-NR coexistence starting with a review of both radio access technologies. We then describe the contributions by the 3rd Generation Partnership Project (3GPP) to solving the coexistence issue and catalog the major coexistence scenarios. Lastly, we introduce a novel spectrum sharing scheme that can be applied to the coexistence scenarios under study.
