CSFB Success Rate Based Handover (LTE to TD-SCDMA)

Description

The CSFB Success Rate Based Handover (LTE to TD-SCDMA) KPI indicates the success rate of handover-based LTE-to-TD-SCDMA CSFB.
The number of handover-based LTE-to-TD-SCDMA CSFB attempts increases by 1 at point B as shown in Figure 1 after the eNodeB sends a Mobility From EUTRA Command message to the UE and performs CSFB to a TD-SCDMA network. The number of successful handover-based LTE-to-TD-SCDMA CSFB executions increases by 1 at point C, where the eNodeB receives a UE CONTEXT RELEASE COMMAND message from the MME after the UE successfully accesses the TD-SCDMA network.

Definition

The CSFB Success Rate Based Handover (LTE to TD-SCDMA) KPI is defined in Table 1. The number of handover-based LTE-to-TD-SCDMA CSFB attempts and the number of successful handover-based LTE-to-TD-SCDMA CSFB executions are collected as described in Description.

Table 1 CSFB Success Rate Based Handover (LTE to TD-SCDMA)

Name	CSFB Success Rate Based Handover (LTE to TD-SCDMA)
Object	Cell or radio network
Formula	CSFB_L2T_BasedHO_SR = (CSFB_L2T_BasedHO_Success/CSFB_L2T_BasedHO_Attempt) x 100%
Associated Counters	CSFB Success Rate Based Handover(LTE to TD-SCDMA) = (L.IRATHO.E2T.CSFB.ExecSuccOut/L.IRATHO.E2T.CSFB.ExecAttOut) x 100%
Unit/Range	Percentage (%)