Ideally a network let UE to report the signal quality (usually RSRP) of the current cell (serving cell) and target cell and set the arbitrary rule for handover. There are many different measurement items and many different ways to measure the signal quality of the current cell (serving cell) and target cell. Network make a decision on whether it will let UE handover or not, based on the measurement value from UE. One of the most important step for Handover is Measurement Report from UE before the handover. LTE Measurement Report Trigger (EVENT for Measurement Report) Frequent Issues Regarding Measurement Report.Example 3 > - Event Based Measurement : A5.

Example 2 > - Event Based Measurement : A1, A2, A3.

Example 1 > - Measuring RSRP, RSRQ for current Cell.

Layer 3 Filtering for Measurement Report.

LTE Measurement Report Trigger (EVENT for Measurement Report).

According to my experience, it tend to take huge time and effort to implement all sorts of measurement algorithm and take a lot of time for verification process as well. On UE protocol stack as well, implmentating the measurement process would be one of the most challenging item. There are so many details you need to understand. You're right at the high level, but you will find it very tricky if you are asked to create the RRC message with all the detailed parameters (IE : Information Elements) to trigger UE to perform the specific measurement. Ii) UE sends an RRC message that carries the result of the measurement I) eNB sends an RRC message indicating what kind of items to be measured and In terms of RRC Message, you may say Measurement Process would be a simple one, that is, Idle mode measurement is not the scope of this page. This page will deal with connected mode measurement process only. Is determined by specific RRC messages dedicated for a specific UE. Idle mode measurement is mainly for Cell Selection and Reslection process and most of idle mode measurement criteria is determined by SIB messages, the connected mode measurement is mostly for Handover or CSFB and the measurement criteria One is measurement in Idle mode and the other one is in Connected mode.

In any technology, Measurement is done roughly at two stage. This page will explain about various aspect of Measurement Process that is happening in a LTE.

Lte rsrp