Qualcomm

Overview of Security in 5GEnhanced System-Level DesignDeploying a 5G cell for a temporary demand might not be economically viable for the operator.Instead, the operator can add a mobile Wi-Fi hotspot to meet the demands during a certain event.When the Wi-Fi hotspot connects to 5G core network, it uses non-3GPP interworking function (N3IWF).5G is set out to cater various use cases and each of the..

What are Private Networks?Public networks can cater to services such as cloud gaming, video streaming, voice & video calls and more.The goal of a private network is to serve the operational needs of the location it is deployed at.In order to cover an entire city, high quantities of base stations need to be deployed.Designing public networks require such considerations as building density, roads,..

Evolution of the Radio Access Network (RAN)Baseband is effectively is what we see on pur mobile devices.It is converted to the bits and bytes before being transmitted as a radio frequency.In legacy RAN deployments, connectivity between BBU and RRH/RU had specific requirements.Motivation for RAN VirtualizationRAN Functional SplitTraditional RAN vs. Virtualized RAN (vRAN)

5G NR SpectrumUser density might prove to be problematic for unlicensed spectrum.Motivation & Challenges Behind mmWave DeploymentsmmWave signals have to penetrate through the walls to connect your device with a base station.As they lose power going in and out of buildings, the user experience might be disrupted.mmWave signals can face attenuation by rain, snow, cloudy weather conditions and tree..

5G Network Terminology & ConceptsAs user plane transmits the actual data, the control plane handles the logistics of how it’s delivered.Details such as user identity and location are processed by the control plane functions.Network Architecture Options for 5G NRUpgrading tens of thousands of base stations would be a significant expense for any operator.NSA deployments solve throughput and capaci..

Evolution of Wireless TechnologiesThe predominant use case of 1G was voice calls.With the advancement of 2G, there was a shift from analog voice to digital voice paradigm.By using digital modulation, 2G would digitize our voice for a more efficient & clear transmission.Text messaging was also introduced with 2G communications.3G enabled users to have internet access on their mobile devices.4G pr..

Wireless Communication BasicsA transmitter is in the position of 'sending' information.A receiver is on the receiving end during a wireless transmission.Antennas help these devices send/receive wireless signals.Radio Signal Properties, Carrier Waves and ModulationWhat Happens During a Phone Conversation: Wireless Transmission and ReceptionCell towers are deployed by the network operators to carr..