US 7,890,130 B2 · Method for controlling inter-cell interference in a mobile communication system

Abstract

A method for controlling inter-cell interference (ICI) in a mobile communication system by transmitting uplink control information from a base station in a home cell to a terminal of a neighboring cell based on ICI amount information measured at the base station. The ICI control method includes receiving an uplink signal at a base station and extracting inter-cell interference amount information from the uplink signal, generating uplink control information based on the extracted inter-cell interference amount information, and transmitting the uplink control information to a terminal in a neighboring cell. The terminal schedules an uplink resource including selecting frequency bands for an uplink signal by referring to the uplink control information.

Claims41

Dependent claims

A method for controlling inter-cell interference in a mobile communication system, comprising:

receiving a first uplink signal at a base station in a first cell;
extracting inter-cell interference amount information associated with the base station in the first cell from the first uplink signal;
generating uplink control information based on the inter-cell interference amount information;
and
transmitting the uplink control information to a mobile communication terminal located in a second cell neighboring the first cell,
wherein the mobile communication terminal generates a second uplink signal based on the uplink control information.

3 more elements

A mobile communication system, comprising:

a first base station to provide wireless communication services to a first cell;
and
a mobile communication terminal arranged in a second cell neighboring the first cell,
wherein the first base station comprises:
an inter-cell interference amount information extractor to extract inter-cell interference amount information from a first uplink signal received via an antenna;
and
an uplink control information generator to generate first uplink control information based on the inter-cell interference amount information and to transmit the first uplink control information to the mobile communication terminal in the second cell neighboring the first cell, and
wherein the mobile communication terminal comprises:
a control information receiver to receive the first uplink control information from the first base station;
and
a transmission signal power control unit to determine an uplink transmission signal power of an uplink signal to a base station of a home cell based on the first uplink control information.

8 more elements

Dependencies are inferred from the claim text.

Method for controlling inter-cell interference in a mobile communication system

Life of this patent

Method for controlling inter-cell interference in a mobile communication system

Life of this patent

Abstract

Claims41