Mobile communication system

摘要

A mobile communication system capable of easily notifying the interference-related information and avoiding interference in a situation in which a macro cell and local nodes are deployed to coexist. In the system, a macro cell (eNB) notifies, via user equipments (UEs) present in a coverage, HeNBs present in the coverage of the interference-related information related to the interference to a physical resource to be used, for example, a high interference indication (HII) and an overload indicator (OI).

主权项

1. A mobile communication system comprising a plurality of base station devices and a user equipment device configured to perform radio communication with each of said base station devices, wherein:
said plurality of base station devices include a large-scale base station device having a large-scale coverage that is relatively large and a small-scale base station device having a small-scale coverage that is relatively small, as a coverage in a range in which communication with said user equipment device is made; said user equipment device, which is present in said large-scale coverage, is configured to change state between a connected state and an idle state; said large-scale base station device notifies said user equipment device, in said connected state, of interference-related information related to interference to a physical resource to be used by said small-scale base station device; and said user equipment device changes state from said connected state to said idle state and, while in the idle state, notifies said small-scale base station device present in said large-scale coverage of said interference-related information related to interference to said physical resource to be used by said small-scale base station device.