Inter-cell interference relief method
AssigneesSamsung Electronics Co., Ltd., Electronics and Telecommunications Research Institute
InventorsChoong Il Yeh, Young Seog Song, Seung Joon Lee, Byung-Jae Kwak, Ji Hyung Kim, Dong Seung Kwon
Life of this patent
Estimating the term…
Abstract
In a method of mitigating inter-cell interference, terminals are grouped into groups. A base station transmits data to a first terminal belonging to a first group among the groups, without cooperation with a neighboring base station. The base station transmits data to a second terminal belonging to a second group among the groups, through cooperation with the neighboring base station.
Claims20
A method of mitigating inter-cell interference in a base station, the method comprising:
- receiving feedback information from each of a plurality of terminals;
- grouping the plurality of terminals into a plurality of groups based on the feedback information, the plurality of groups including a first group receiving data without the base station cooperating with a neighboring base station and a second group receiving data with the base station cooperating with the neighboring base station;
- transmitting first data from the base station to a first terminal belonging to the first group without the base station cooperating with the neighboring base station;
- and
- transmitting second data from the base station to a second terminal belonging to the second group with the base station cooperating with the neighboring base station.
A method of mitigating inter-cell interference in a terminal, the method comprising:
- at the terminal, transmitting feedback information to a serving base station, wherein the terminal belongs to any one of a plurality groups divided based on the feedback information, and the plurality of groups include a first group receiving data without the serving base station cooperating with a neighboring base station and a second group receiving data with the serving base station cooperating with the neighboring base station;
- at the terminal, receiving first data from the serving base station without the serving base station cooperating with the neighboring base station, when the terminal belongs to the first group;
- and
- at the terminal, receiving second data with cooperation between the serving base station and the neighboring base station, when the terminal belongs to the second group.
A method of mitigating inter-cell interference at a base station, the method comprising:
- receiving feedback information from each of a plurality of terminals;
- grouping the plurality of terminals into a plurality of groups based on the feedback information, the plurality of groups including a first group receiving data without applying a network multiple input multiple output (MIMO) scheme and a second group receiving data with application of the network MIMO scheme and with the base station cooperating with a neighboring base station;
- at the base station, communicating with a first terminal belonging to the first group without applying the network MIMO scheme;
- and
- at the base station, communicating with a second terminal belonging to the second group among the plurality of groups with application of the network MIMO scheme and with the base station cooperating with the neighboring base station.
Dependencies are inferred from the claim text.