Category: LTE

  After initial synchronization of UE with the network, it starts to receive information blocks where the first and most essential one is Master Information Block. It carries less, but important information to UE from the network. MIB (Master Information READ MORE

There are another key factors in LTE which similar items are known from legacy networks. System Information Blocks and Master Information Block. These information messages are sent by the network to UE to keep it updated about cell selection, cell READ MORE

During handover procedure over X2 interface, an identifier is used to exchange control messages between source and target eNodeB. This identifier is known as “UE X2AP ID” and used to distinguish control messages for the UE which is handing over READ MORE

Let’s imagine, how many simultaneous users can be connected to an eNodeB, of course it can be 100-150 users even more. But there is only one S1 interface between eNodeB and MME which is known as S1-MME interface. This interface READ MORE

When the UE attaches to LTE network, an IP address is allocated to the UE by PGW to make easy data connectivity between the UE and Packet Data Network. More than one PGW might be exist in the network, and READ MORE

Globally Unique Temporary Identifier or with shortened version GUTI is allocated to a UE by the MME when the UE attaches to the Network. And it is used instead of the IMSI to identify the UE. When the UE attaches READ MORE

It is recommended to read OFDMA/SC-FDMA sections to clearly understand throughput calculation in LTE. Let’s assume, the UE is in good radio condition and its capability is available for 150 Mbps for downlink and 50 Mbps for uplink. In good READ MORE

Evolved NodeB or with abbreviated version eNodeB is a major part of LTE network structure. If we compare eNodeB with NodeB which is used in WCDMA network, there is a big difference between two nodes. Most of the main functionalities READ MORE

Inter-Technology Handover means mobility in connected mode between two different cells and different technology. This topic will be assigned to Event B2 which is used for LTE Inter-Technology handover. This event type is also known as Inter-RAT or Inter-System handover. READ MORE

Inter-Technology Handover means mobility in connected mode between two different cells and different technology. This topic will be assigned to Event B1 which is used for LTE Inter-Technology handover. This event type is also known as Inter-RAT or Inter-System handover. READ MORE