Transmitting diversity method and MIMO communication channel

A communication system and transmit diversity technology, which is applied in the field of space-correlated MIMO communication systems, can solve the problems of transmit diversity performance deterioration, reduce the effective multiplicity of transmit diversity, and reduce the MIMO channel of the antenna, so as to improve wireless communication performance and transmit diversity performance Effect
CN1968043AInactive Publication Date: 2007-05-23PANASONIC CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PANASONIC CORP
Publication Date
2007-05-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a sending grouping method in MIMO communication system, wherein said system comprises receiver and sender; the method comprises that: sender via orthogonal transformation complexes M original marks into N sending marks, while M and N are natural number; receiver based on second-stage statistic property of channel confirms N wave-beam forming parameters of N sending marks; receiver via feedback channel sends said parameters to the receiver; the sender uses relative wave beams relative to N parameters to send N sending marks. The invention sending method can eliminate the correlation between sending mark channels, and use orthogonal sending method to improve the sending grouping property of MIMO.
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Description

technical field

[0001] The present invention relates to a transmission diversity technology used in a multiple-input multiple-output (MIMO) system, in particular to a space-correlated MIMO communication system and a corresponding transmission diversity method, which can effectively improve transmission diversity performance. Background technique

[0002] Increasingly high information transmission rate is one of the main problems faced by future wireless communication systems. In order to achieve this goal on limited spectrum resources, multiple-input multiple-output technology, that is, multi-antenna technology has become one of the indispensable means used in future wireless communications. In the MIMO system, the transmitting end uses multiple antennas to transmit signals, and the receiving end uses multiple antennas to receive spatial signals. Studies have shown that compared with traditional single-antenna transmission methods, MIMO technology can significantly increase...

Claims

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