WIRELESS COMMUNICATION SYSTEM AND WIRELESS BASE STATION DEVICE

摘要

In a wireless communication system including a wireless terminal device wirelessly connectible to both a macro-cell base station and a small-cell base station, all the user-plane signals destined for the wireless terminal device are transmitted to the small-cell base station; a VoIP signal among the user-plane signals destined for the wireless terminal device is transmitted to the macro-cell base station; the VoIP signal is wirelessly transmitted from the macro-cell base station to the wireless terminal device; any user-plane signal, among the user-plane signals destined for the wireless terminal device, other than the VoIP signal is wirelessly transmitted from the small-cell base station to the wireless terminal device.