Home > Technical Articles > 5G Handover Events

Introduction to 5G Handover events 

5G Handover Events are generally classified into two types, which include GP and CP events. GP events include all handovers that involve a 4G base station. CP events include all handovers between 4G/5G or between 5G cell sites. 5G handover events are the events that trigger a mobile device to change frequency bands while it is in use. In 5G, these frequency bands are called channels. 5G Handover Events are used to inform the UE of WI-NRNC contact loss and reconnection. The UE should be aware of exactly which handover events it needs to recognize and monitor, given that these events can indicate when an NRNC is out of coverage or not available for data exchange. In addition, an implicit handover event occurs when the UE loses access to a region because it has roamed into another region, where it recognizes a new cell identifier (CI) from the local RHN. This form of implicit handover event can be indicative of the fact that it needs to perform a hard or soft handover in order for connectivity with the home base station (HBS) and home RAN node (HRN) to continue working correctly. Handover events are essential to ensure the 5G connection is always available. 

Key 5G-specific handover parameters and metrics have been defined by 3GPP and 3GPP2, providing more accurate measurements of handovers and connection quality. This report will give you insight into the key elements of these parameters, as well as a description of events that can cause a handover. The 5G Handover event is triggered when a device moves between 5G and 2G networks when handover occurs. In such cases, the base station will send a Handover Confirm message to the mobile device. This information is used to register phones on the new network and carry over data from the old network. This event record is sent at the handover of a 5G connection to another source. It includes parameters such as the source and destination mobile station identities (IMSI, TMSI, and other identifiers), timeslot number, and network information. 5G Handover Events is a global forum for presenting and discussing new ideas, concepts, and breakthroughs in mobile communications. 

The primary focus is on next-generation mobile networks including 5G and beyond (6G/7G), with a particular focus on enabling technologies. 5G handover events are different from previous generations. They are based on network state and involve more complex signaling information, which makes the roll-out of an efficient handover event detection engine much more challenging than before. 5G handover events are actions or decisions taken by the user that result in a change of radio cell (i.e. RAT, frequency) or location, to continue fulfilling the user’s objective. 5G handover events provide information about when a UE in a certain coverage area is handed over to another non-primary cell (e.g. when the UE enters another coverage area). In addition, 5G handover events provide the reason for handover, i.e. reason code and cause value, since this allows further understanding of what happened and possibly improves mobile service quality by reducing unnecessary handovers.

5G Handover Events 

 5G Handover Events are essential in order to provide a seamless user experience. If a device cannot hear the LTE network, it will search for another network until the signal is strong enough that the user can make or receive a call, and then automatically select this new network. The 5G Handover Event detects when a device leaves one cell, moves into an adjacent cell, and then reenters the first cell. 5G Handover Events are processed that are created to bring high levels of transparency to the decision-making process. In addition, it provides an active mechanism for accountability and performance monitoring with respect to optimization efforts. Handover events are expected to occur when a device moves from one cell or sub-cell to another in a 5G architecture. These can be intra-frequency (i.e., macro to micro), inter-band (i.e., 3GPP network and non-3GPP), and inter-RAT (i.e., LTE and Wi-Fi). As 5G NR deployments grow there are many handovers that occur in any given second. The 5G Handover Events API allows you to access network events such as a user changing a geographical location, or a data connection being lost. A handover represents a transition from one cell sector to another. Handovers can be either idle or active, and most commonly occur due to changes in the radio environment. 

For more on 5G Measurement Events:

You can find this topic in our prime membership telecom by following the link below: 

voice call handover from 5g to 4g LTE
3gpp standard for reduced handover interruption time
5GC to EPS handover using n26
network elements used in 5g to lte voice call handovers
hanover procedure for access technology change