Tag Archives: handover

Different Categories of UE in LTE

Categories of UE in LTE is divided by its function which is as per below. Functionality: eNB obtains the UE radio capabilities via: • The S1AP initial setup request message • The X2AP in case of handover • The RRC…

Handover Measurements in LTE

Measurements to be performed by a UE for intra/inter-frequency mobility are controlled by e-UTRAN, using broadcast or dedicated control. If the frequency center of the measured cell is the same No measurement gaps are required If the frequency center of…

Intra E-UTRAN Handover in LTE

The UE is RRC connected. During the HO: The radio link is released from the eNodeB 1 and re-established on the eNodeB 2 The Control plane is switched to the eNodeB 2 and the MME The User plane is switched…

Radio Protocol Stack Overview in LTE

In the C-plane, the NAS functional block is used for network attachment, authentication, setting up bearers, and mobility management. All NAS messages are ciphered and integrity protected by the MMEand UE. The radio resource control (RRC) layer in the eNB…

How Handover Filtering by UE in LTE ?

If the IE “Filter coefficient” is received the UE applies filtering of the measurements for that measurement quantity according to the formula below. This filtering is performed by the UE before UE event evaluation. The UE filters also the measurements…

What is Simulator and how it works

The development of the simulator that will be implemented can be classified in two phases. The first phase is the development of a simulator, capable for the investigation of the typical handover procedure. The second phase will include the implementation…