Oi Móvel

Company Overview

Oi Móvel S.A., known simply as Oi, is the largest mobile carrier operating in Brazil. The company is a fully owned subsidiary of Oi S.A. the largest telecommunications group in Brazil, listed on the Sao Paolo Stock Exchange as OIBR3.SA.

Oi launched its mobile services in 2002 using standard 2G GSM 1800 MHz, and launched B1 (2100 MHz) 3G services in 2008 after securing 2100 MHz spectrum in a 2007 government auction. The company secured 2600 MHz spectrum in a 2012 government auction to go on to deploy B7 (2600 MHz) services across the country over the next four years. Oi is currently in the process of rolling out its B31 (450 MHz) rural LTE network.

In April 2018 the company announced plans to implement LTE-A 2C aggregation of its B3+B7 networks with completion by July 2018. Oi announced in March 2019 that it had embarked on an extensive 4.5G rollout plan including addition of B1 (2100 MHz) to increase peak data rates using 3C aggregation.

Oi 5G

In a March 2019 press release, the company disclosed details on 5G testing performed in partnership with Huawei, which carried out a holographic call using a 100 MHz channel in the n78 (3500 MHz) band. Further trials conducted in July 2019 achieved 1029 Mbps in a 5G demonstration using Huawei equipment.