From the course: 4G LTE: Architecture, Protocols, Call Flows, KPIs, Optimization, Performance Analysis

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PRB usage vs. RRC connected users analysis

PRB usage vs. RRC connected users analysis

When we do the capacity optimization in case of 4G along with the PRP utilization, we also need to look into the connected users. Those are the RRC connected users which are anyways consuming some kind of resources. A cell can be overwhelmed not just by heavy data but sometimes by too many active connections, even if those users are not streaming at the same time. It is like a restaurant full of people who have been seated and given the menus but haven't ordered yet. They are still taking up the tables. That's the similar scenario happens in case of 4G. First let's understand that every RRC connected users consume certain resources, even for the signaling path. When a user's device is in the RRC connected mode, it has at least one dedicated data radio bearer established with the core network. This state means the phone is active and ready for data, constantly exchanging the control signals to stay synchronized. Each connected user reserves a slice of the radio and processing resources…

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