Patent ID: 9736744
Date: 2017-08-15
CPC Classifications: H04W

Claim:
1. A method for transmitting an indication in a wireless communication system, the method being performed by a first eNodeB (eNB) and comprising: receiving, from a second eNB, an inter radio access technology (IRAT) ping-pong detection indication, the IRAT ping-pong detection indication indicating that an IRAT ping-pong is detected by the second eNB, the IRAT ping-pong being a handover of a user equipment (UE) from the first eNB to the second eNB via a radio network controller (RNC); transmitting, to the RNC, a request for a handover report message; receiving, from the RNC, the handover report message indicating whether or not the IRAT ping-pong is an unnecessary handover in response to the request; performing a handover of the UE from the first eNB to the RNC; and transmitting, to the second eNB via the RNC, an IRAT necessity indication based on the handover report message, wherein the IRAT necessity indication indicates that the handover of the UE from the first eNB to the RNC is a necessary handover when the handover report message indicates that the IRAT ping-pong is not the unnecessary handover.