Apparatus and method for space-time-frequency block coding in a wireless communication system

A space-time coding and coding technology, applied in the directions of diversity/multi-antenna system, multi-frequency code system, space transmit diversity, etc., can solve the problems of improvement, unexpected performance, and increased burden.

Inactive Publication Date: 2006-07-12
SAMSUNG ELECTRONICS CO LTD
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Problems solved by technology

Requires a lot of computation to obtain the weighting matrix, increases the burden of sending the channel estimate to the transmitter without error, and incurs additional overhead by sending
Furthermore, performance improvement cannot be expected in environments where the channel state changes rapidly

Method used

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  • Apparatus and method for space-time-frequency block coding in a wireless communication system
  • Apparatus and method for space-time-frequency block coding in a wireless communication system
  • Apparatus and method for space-time-frequency block coding in a wireless communication system

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Embodiment Construction

[0067] Preferred embodiments of the present invention will be described herein with reference to the accompanying drawings. In the following description, well-known functions and constructions are not described in unnecessary detail since they may obscure the invention in unnecessary detail.

[0068] The present invention intends to provide a rate 2 STBC mode for improving performance such as bit error rate (BER) performance without using channel information in a wireless communication system. In particular, a rate 2 STFBC mode for an OFDM wireless communication system will be described in detail.

[0069] The present invention will be described in the context of a communication system having a transmitter including 4 Tx antennas and a receiver including 2 Rx antennas as a proposed communication system for fourth generation communication.

[0070] Although the present invention can be applied to any one of Frequency Division Multiple Access (FDMA), Time Division Multiple Access...

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Abstract

A Space-Time-Frequency Block Coding (STFBC) encoding apparatus and method for a wireless communication system are provided. In a transmitter using a plurality of transmit antennas, an encoder encodes an input symbol sequence according to a predetermined space-time coding matrix. An antenna circulator selects one of predetermined permutation matrices according to a predetermined formula and generates a plurality of symbol vectors by permuting the space-time coded symbols according to the selected permutation matrix.

Description

[0001] This application claims the application titled "Apparatus And Method For Space-Time-Frequency Block Coding In A Wireless Communication System" filed at the Korean Intellectual Property Office on January 7, 2005 and assigned serial number No. 2005-1466 and filed in 2005 Priority of an application entitled "Apparatus And Method ForSpace-Time-Frequency Block Coding In A Wireless Communication System" filed at the Korean Intellectual Property Office on March 9, 2005 and assigned serial number No. 2005-19859, the entire contents of which are cited Here for reference. technical field [0002] The present invention relates generally to multiple-input multiple-output (MIMO) wireless communication systems, and thus to space-time-frequency block coding (STFBC) apparatus and methods for multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) communication systems. Background technique [0003] The fundamental problem of communication is how to effic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04L1/06H04L27/26
Inventor 尹圣烈蔡赞秉郑鸿实卢元一吴廷泰高均秉丁英镐南承勋郑在学
Owner SAMSUNG ELECTRONICS CO LTD
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