Coverage Evaluation for 5G Reduced Capability New Radio (NR-RedCap)
| Autor: | Andreas Höglund, Johan Bergman, Saeedeh Moloudi, Sandeep Narayanan Kadan Veedu, Mohammad Mozaffari, Kittipong Kittichokechai, Y.-P. Eric Wang |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
FOS: Computer and information sciences
General Computer Science Computer science Computer Science - Information Theory NR link budget evaluation 02 engineering and technology reduced capability devices Telecommunications link 0202 electrical engineering electronic engineering information engineering Wireless General Materials Science Latency (engineering) business.industry Mobile broadband Information Theory (cs.IT) Bandwidth (signal processing) General Engineering RedCap 020206 networking & telecommunications coverage recovery Key (cryptography) lcsh:Electrical engineering. Electronics. Nuclear engineering business lcsh:TK1-9971 Wireless sensor network 5G Computer network |
| Zdroj: | IEEE Access, Vol 9, Pp 45055-45067 (2021) |
| Popis: | The fifth generation (5G) wireless technology is primarily designed to address a wide range of use cases categorized into the enhanced mobile broadband (eMBB), ultra-reliable and low latency communication (URLLC), and massive machine-type communication (mMTC). Nevertheless, there are a few other use cases which are in-between these main use cases such as industrial wireless sensor networks, video surveillance, or wearables. In order to efficiently serve such use cases, in Release 17, the 3rd generation partnership project (3GPP) introduced the reduced capability NR devices (NR-RedCap) with lower cost and complexity, smaller form factor and longer battery life compared to regular NR devices. However, one key potential consequence of device cost and complexity reduction is the coverage loss. In this paper, we provide a comprehensive evaluation of NR RedCap coverage for different physical channels and initial access messages to identify the channels/messages that are potentially coverage limiting for RedCap UEs. We perform the coverage evaluations for RedCap UEs operating in three different scenarios, namely Rural, Urban and Indoor with carrier frequencies 700 MHz, 2.6 GHz and 28 GHz, respectively. Our results confirm that for all the considered scenarios, the amounts of required coverage recovery for RedCap channels are either less than 1 dB or can be compensated by considering smaller data rate targets for RedCap use cases. |
| Databáze: | OpenAIRE |
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