Rest of the system information is sent to the UE on-demand at the time of connection established. This is to avoid common, always on cell-level transfer and to minimize the energy consumption of the network.
In 5G only the bare minimum system information is broadcasted in common PBCH channel that is part of the SSB block.
Scanners can read the full system information in UMTS and LTE networks, from where scanner can read global cell id, MNC, MCC, and other useful parameterization of the network. However, there are a few differences compared to legacy technologies in using scanners on 5G. Coverage and quality metrics, namely SS-RSRP, SS-RSRQ, SS-CINR, and RSSI, are reported per each SSB reference beam of a cell. Example of Nemo Outdoor 5G NR scanner measurements. Scanner will be able to measure the SSB beams, which is the basic coverage measure of 5G NR network. In legacy technologies, scanner was best suited for coverage measurements because it can measure all cells from all networks in one go. UE is always limited to one operator and does not necessarily measure all technologies or even all carriers as it is bounded by the neighbor list definitions in the network. Both scanners and test UEs will be available for field testing in 5G.
0 kommentar(er)
