Cell Reselection in Mobile Networks
Cell Reselection enables a UE to continuously monitor the signal quality of neighboring cells, and determine the most suitable cell to camp on. This ensures that the UE camps on the cell that can provide the best possible service and signal quality.
This can be within the same Radio Access Technology (RAT), e.g., 4G cell to 4G cell. Or it can be between different RATs, e.g., 5G cell to 4G cell.
Cell Reselection is primarily performed while the UE is in IDLE state, where the UE locally decides it shall camp on which cell, according to received signal quality.
Network operator can optimise the parameters that the UE uses in cell selection, so that it balances network load, coverage, and user experience.
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What is Tracking Area in LTE ?
Here, we will discuss the Location identifiers in LTE mobile network, including the mobile operator identifier, the Tracking Area identifier, and the Cell identifier. Mobile Operator Identifier Tracking Area Identifier Cell Identifier In summary, every group of LTE cells are grouped into a TA.
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How MM state transition in 2G occurs
The MM context exist on both the MS and the SGSN. One of the information elements exist inside the MM context, is the 'MM state' the MS currently exist in. Below figure shows the states the MS can exist in, and the events that triggers the transition from one state to another. MM state transition First,…
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2G/3G Mobility Management states
The GPRS Mobility Management determines if the user equipment is registered to the network or not. In another words, it defines if the network knows about the presence of the user equipment or not. In addition, if the user equipment is registered to the network, to which extent the network can determine the location of…
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