Method for transmitting and receiving signals using collaborative MIMO scheme

Abstract

A method for transceiving a signal in a cooperative MIMO(Multi-Input Multi-Output) mode is provided to perform precoding by sharing precoding matrix information received from a terminal in a closed-loop mode when a data signal for one terminal is transmitted in a plurality of base stations in the multi-cell environment. A channel signal, which is received from cooperative base stations including a serving base station and more than one neighboring base station, which performs a cooperative MIMO mode with the serving base station, is measured. A precoding matrix index for each cooperative base station is determined and reported to the serving base station. The same or independent signal is received from the cooperative base stations. More than one of a first precoding matrix index maximizing interference and a second precoding matrix index minimizing the interference is computed.

Description

[0001] This application was submitted on June 30, 2010. The national application number is 200880123606.7 (the international application number is PCT / KR2008 / 007872, and the application date is December 31, 2008). and method of receiving signals" patent application divisional application. technical field

[0002] The present invention relates to a communication system in a multi-cell environment, and more particularly, to a method for reducing inter-cell interference in a multi-cell environment and a method for transmitting and receiving signals through a cooperative multiple-input multiple-output (MIMO) scheme . Background technique

[0003] With the spread of information communication services, the emergence of various multimedia services, and the provision of high-quality services, demands for wireless communication services have rapidly increased. In order to actively cope with such demands, the capacity of the communication system should be increased and the reliabilit...

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