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Method for transmitting and receiving signals using collaborative MIMO scheme

A cooperative and selective signal technology, applied in the field of communication systems, to achieve the effect of eliminating inter-cell interference, reducing interference, and improving receiving performance

Inactive Publication Date: 2013-02-27
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In general, the spatial multiplexing rate that can be maximized is limited to the smaller value of the number of transmit antennas and the number of receive antennas

Method used

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  • Method for transmitting and receiving signals using collaborative MIMO scheme
  • Method for transmitting and receiving signals using collaborative MIMO scheme
  • Method for transmitting and receiving signals using collaborative MIMO scheme

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Embodiment Construction

[0052] Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The detailed description, which will be given below with reference to the accompanying drawings, is intended to explain exemplary embodiments of the present invention, rather than to show the only embodiments that can be implemented according to the present invention. The following detailed description includes specific details in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without such specific details. For example, the following description will be given focusing on specific terms, but the present invention is not limited thereto, and any other terms may be used to represent the same meaning.

[0053] In some instances, well-known structures and / or devices are omitted or shown in block diagram and / or...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/02H04L1/00
CPCH04B7/0495H04W24/02H04B7/026H04L1/0026H04B7/0634H04B7/0417H04B17/005H04B7/0639H04B7/0452H04L25/03904H04B17/345H04B7/024H04B7/0413H04B7/0626H04B7/0632H04B7/0456H04W72/02
Inventor 林东局金首南任彬哲金在完李旭峰
Owner LG ELECTRONICS INC
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