论文标题
朝着较长的电池寿命的较小和低成本的5G设备：3GPP版本的概述17 Redcap
Toward Smaller and Lower-Cost 5G Devices with Longer Battery Life: An Overview of 3GPP Release 17 RedCap
论文作者
论文摘要
第五代（5G）无线技术主要是为支持三类用例提供的，即增强的移动宽带（EMBB），超级可靠和低延迟通信（URLLC）以及大规模的机器型通信（MMTC），其在数据速率，延迟，连接密度和功率方面的需求明显不同。同时，有几种关键用例，例如工业无线传感器网络，视频监视和可穿戴设备，其要求落在EMBB，URLLC和MMTC之间。在这方面，可以进一步优化5G，以有效地支持这种中端用例。因此，在第17版中，第三代合作伙伴项目（3GPP）开发了支持新设备类型的基本功能，可降低功能（REDCAP）NR设备，旨在与常规的5G NR设备相比，旨在较低的成本/复杂性，较小的物理尺寸和更长的电池寿命。在本文中，我们在描述了新引入的功能，降低和节省收益以及性能和共存影响的同时，提供了3GPP版本17 Redcap的全面概述。此外，我们介绍了REDCAP演变的关键设计准则，基本权衡以及未来的前景。
The fifth generation (5G) wireless technology is primarily developed to support three classes of use cases, namely, enhanced mobile broadband (eMBB), ultra-reliable and low-latency communication (URLLC), and massive machine-type communication (mMTC), with significantly different requirements in terms of data rate, latency, connection density and power consumption. Meanwhile, there are several key use cases, such as industrial wireless sensor networks, video surveillance, and wearables, whose requirements fall in-between those of eMBB, URLLC, and mMTC. In this regard, 5G can be further optimized to efficiently support such mid-range use cases. Therefore, in Release 17, the 3rd generation partnership project (3GPP) developed the essential features to support a new device type enabling reduced capability (RedCap) NR devices aiming at lower cost/complexity, smaller physical size, and longer battery life compared to regular 5G NR devices. In this paper, we provide a comprehensive overview of 3GPP Release 17 RedCap while describing newly introduced features, cost reduction and power saving gains, and performance and coexistence impacts. Moreover, we present key design guidelines, fundamental tradeoffs, and future outlook for RedCap evolution.
