Empirical Study on 5G NR Cochannel Coexistence

Electronics, vol. 11, pp. 1676

Abstract

The 5G non-public network deployments for industrial applications are becoming highly interesting for industries and enterprises owing to dependable wireless performance characteristics. With an increasing trend of network deployments in local licensed and/or shared spectrum, coexistence issues naturally arise. In this article, we present our detailed empirical results on the performance impact of a 5G NR indoor non-public network from a 5G NR outdoor network operating in the same mid-band spectrum. We present experimental results on the uplink and downlink performance impact of a non-public indoor network deployed on an industrial shopfloor. Our results quantify the impact on the uplink and downlink performance characteristics based on realistic traffic loads in a non-public indoor network when using synchronized and unsynchronized Time Division Duplex (TDD) patterns, different UE deployment locations and interference levels. We also present results on mitigating interference effects through robust link adaptation techniques. We believe that this is the first article, which reports quantified 5G NR cochannel coexistence results based on a detailed and systematic study, and provides signficant insights on the cochannel coexistence behavior in realistic deployment scenarios of an industrial shopfloor.

Authors 8

1. Jordi Biosca Caro

   Ericsson (Germany)

   Affiliation as printed

   Ericsson GmbH, Ericsson Allee 1, 52134 Herzogenrath, Germany

2. Junaid Ansari corresponding

   Ericsson (Germany)

   Affiliation as printed

   Ericsson GmbH, Ericsson Allee 1, 52134 Herzogenrath, Germany

3. Joachim Sachs

   Ericsson (Sweden)

   Affiliation as printed

   Ericsson, Torshamnsgatan 21, Kista, 164 83 Stockholm, Sweden

4. Peter de Bruin

   Ericsson (Sweden)

   Affiliation as printed

   Ericsson, Torshamnsgatan 21, Kista, 164 83 Stockholm, Sweden

5. Sertap Sivri

   Ericsson (Germany)

   Affiliation as printed

   Ericsson GmbH, Ericsson Allee 1, 52134 Herzogenrath, Germany

6. Leefke Grosjean

   Ericsson (Sweden)

   Affiliation as printed

   Ericsson, Torshamnsgatan 21, Kista, 164 83 Stockholm, Sweden

7. Niels König Aachen Fraunhofer Institute for Production Technology

   Fraunhofer Institute for Production Technology IPT

   Affiliation as printed

   Fraunhofer Institute for Production Technology (IPT), 52074 Aachen, Germany

8. Robert Heinrich Schmitt Aachen Fraunhofer Institute for Production Technology Laboratory for Machine Tools and Production Engineering (WZL)

   Fraunhofer Institute for Production Technology IPT · RWTH Aachen University

   Affiliation as printed

   Fraunhofer Institute for Production Technology (IPT), 52074 Aachen, Germany

   Laboratory for Machine Tools and Production Engineering (WZL), RWTH Aachen University, 52074 Aachen, Germany