Experiment involved the connection between testbeds located in Rio de Janeiro and Campinas, using a 10 Gbps link

The OpenRAN@Brasil program, which has been conducted in partnership by CPQD and RNP (National Education and Research Network), reached an important milestone with the positive results achieved in the interconnection test between its two deployed testbeds – in Rio de Janeiro and in Campinas. Carried out at the beginning of May, the test demonstrated the successful operation of the 5G system, in a disaggregated manner, using a 10 Gbps link with a latency of 10 milliseconds for interconnection. 

The experiment involved the implementation of a disaggregated 5G protocol stack, with the 5G core and the Centralized Unit (CU) running in the Rio de Janeiro testbed, located at RNP, while the Distributed Unit (DU) and the Radio Unit (RU) were operated on the Campinas testbed, installed at CPQD. “The disaggregated 5G system worked successfully in the test, achieving data transfer rates of around 1 Gbps and an average latency of 18 milliseconds, end to end, with jitter (variation in data arrival time) of no more than 5 milliseconds. ”, says Eduardo Melão, Connectivity researcher at CPQD. 

He highlights that, in previous tests, with all elements of the 5G network in the same location – Rio de Janeiro or Campinas – data transfer rates were also around 1 Gbps. “This means that system disaggregation did not have a significant impact on performance, despite the additional 10 millisecond latency introduced by the testbed interconnect link. This advance reinforces the potential of disaggregated solutions in 5G networks, bringing flexibility and innovation to research and development environments”, adds Melão. 

The OpenRAN@Brasil program testbed is available to others interested in carrying out experiments involving research, education and innovation in 5G and Open RAN networks. The objective of the initiative is to offer a specialized environment, reproducing real operating conditions of telecommunications networks, in which researchers and developers will be able to test and validate different components, functionalities and new ideas in a safe space, without interrupting the operations of commercial networks. 

Those interested in using the testbed must fill out the form available on link, providing information such as the objective, duration and resources needed for the experiment. Proposals will be evaluated by a specialized committee, which will determine whether or not to comply with the request to use the platform. More details about the testbed can be found by accessing the link

Created by the Ministry of Science, Technology and Innovation (MCTI), the OpenRAN@Brasil program aims to accelerate the development of the open network ecosystem through research, innovation and training in 5G technologies and applications. Led by RNP and CPQD, the initiative aims to increase the availability and performance of this network in order to guarantee the democratization of access throughout the country.

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