The standards developed by the 3GPP organization provide for 2 modes of 5G network operation: NSA (non-standalone) and SA (standalone). First, the 5G NSA networks will be created, which will actively cooperate with currently operating 4G LTE networks. The 5G SA solutions will be the next step in the evolution of mobile networks. Operators have not yet started building the 5G NSA network, but Huawei is already trying on 5G SA solutions. The Chinese have already passed the first successful tests.
Let’s start with a brief reminder of the difference between 5G NSA and SA networks. Operators who are currently testing the new technology use base stations (gNB) operating in NSA (non-standalone) mode. It is based on the fact that signalling data (e.g. information about the device status) is senstandalonet via the LTE network. In contrast, user data (i.e. downloaded and sent files) is transmitted using the 5G network. Thanks to this, operators can reduce costs and accelerate the construction of base stations using new technology. The SA (standalone) mode is based on the fact that the base station is connected only to the 5G backbone network and does not need elements from the LTE network for its work.
Huawei tests the 5G SA network compliant with the 3GPP standard
The Chinese are in a comfortable situation that they are involved in the production of all devices needed to build the 5G network. That’s why tests conducted in Beijing took place in an environment consisting of commercial Huawei solutions: core network elements 5G NextGen Core (NG Core), gNB base station and 5G terminal with Balong 5000 chipset. All devices were designed in accordance with the standard developed by the 3GPP organization. This means that Huawei equipment should work without any problems with other 5G SA devices. However, we will see it only after tests that confirm the compatibility of individual elements. The most important thing is that the 5G base stations developed by Huawei will work seamlessly with devices equipped with Qualcomm and Samsung modems.