Key test setups for 5G RAN split 6 products

July 28, 2021 // By Jean-Pierre Joosting
Key test setups for 5G RAN split 6 products
Small Cell Forum paper provides deployers and integrators proposed solutions for testing and optimizing disaggregated small cell radio and distributed units of the RAN.

Small Cell Forum (SCF) has released a paper outlining the key test configurations for 3GPP TS38.141 compliance testing of 5G RAN split 6 products using the SCF nFAPI 2.0 interface. Led by Forum members Keysight Technologies and Picocom, the paper aims to inform operators and integrators on how split 6 products can be tested, with specifications derived from 3GPP standards.

A comprehensive suite of 5G FAPI/nFAPI specifications from SCF stimulate innovation and competition across the small cell ecosystem by supporting multi-vendor interoperability within products and between different products of small cell networks, architected within the 3GPP defined disaggregated functional split framework.

Trends identified in SCF’s 2021 Market Forecast showed plans for Open RAN disaggregated networks – with considerable interest in split 6 for shorter range indoor enterprise, campus, and private networks. Operators and systems integrators will need to integrate disaggregated network components including the CUs, DUs and RUs from different vendors, and for integration/testing these need to be compliant with 3GPP test specification TS38.141. However, the units need to be able to be tested individually as well as part of an integrated system and this paper lays out how this can be done.

SCF228 S-RU and S-DU test support:

  • Provides an overview of 5G split 6 S-RU and S-DU products and architectures.
  • Examines the impact of split 6 on 5G base station compliance testing.
  • Develops options and proposes different solutions for testing S-RU and S-DUs.
  • Delivers an overview of TS38.141 test approach for split 6 products.

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