in Berlin

The testbed that is present at HHI incorporation of 5G-Berlin (https://5g-berlin.de/) employs a 5G base station with the mMIMO antenna capability operating in FR1 . A testing version of 5G core is being operated which not only gives the freedom for independent setup of the system parameters but also exposes different N(x) links for debugging purposes.

The main features of HHI testbed are:

  • 5G SA network
  • N78 band – 3.75 GHz operating frequency
  • 100 MHz bandwidth
  • 5G core setup as eMBB
  • mMIMO(64 Tx/Rx) Antenna with 2 beams
  • VPN access to be authorized to access the testbed
Schematic plan for the testbed network.
mMIMO Antenna with 64 Tx/rX configuration.
Nokia gNB configured as 5G SA.

A dedicated application server, Dell R440, is being deployed which cannot only be used to analyse the data from the core or the network but can also be used to deploy different use cases specific files such as docker and container setup to support the testing of the same. This facilitates the operation and testing of the use cases from single point.

Dell R440 application server

Moreover, as the institute primarily focuses on researches in wireless technology, it gives a boost to the testbed as number of state of the art measuring equipments such as R&S spectrum analyzer, R&S signal generator and cell advisor Viavi are available for testing and analyzing the 5G network efficiently and specifically.

Cell advisor Viavi
R&S Spectrum analyzer

Furthermore, making the testing of different use cases more robust and mimicking real-world scenario a number of 5G user equipments (UE’s) are being available. These are:

  1. Quectel M.2 modems
  2. Huawei 5G mobile phones and CPE’s
Quectel M.2 5G modem
Huawei 5G CPE
Quectel 5G modem coupled with Raspberry Pi