Abstract:

In the study of ICIC（inter-cell interference coordination）of LTE，the basic foundation is to distinguish interior users from exterior users.The existing method，RSRP single-threshold reporting mechanism，will cause UE position information to be switched between“interior UE”and“cell edge UE”.This Ping-pong effect can cause a lot of unnecessary signaling and load a heavy burden on UE battery consumption.Based on this，a new method is proposed，which is RSRP double-thresholds reporting mechanism.The new method can solve the problems above，so as to provide a more efficient way to judge the UE position.

Key words: interior/exterior user, RSRP, single-threshold, double-threshold