Method for discriminating space relativity and method for regulating working mode of multi-antenna system

Abstract

The invention discloses the space relativity judging method and the multi antennas system working module adjusting method in the communicating system. The space relativity judging method includes thebelow steps: the step one: gaining the channel impacting responding matrix; the step two: counting the declining depth modulus of the channel; the step three; estimating MTMO channel space relativityand the channel declining depth. The invention conquers the defect of the existing space relativity judging method having the complex counting and inapplicable of the real time system, the existing multi antennas system working mode adjusting method counting source consuming. The invention has many merits such as the working real time in the system, the little counting mete and the judging precision satisfying the switch needing between the MIMO modes.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method for discriminating spatial fading correlation in a multiple-input multiple-output (MIMO, Multiple-Input, Multiple-Output) wireless communication system and a working mode self-adaptive adjustment method in a multi-antenna system. Background technique [0002] MIMO systems have multiple operating modes, such as spatial multiplexing, transmit diversity, and beamforming. Selecting the matching working mode according to the MIMO channel conditions, and adaptively adjusting the working parameters of the MIMO system in real time according to the channel information (CSI) in a specific working mode is an effective way to maximize the spectral efficiency of the MIMO system. At present, it is a research hotspot in the field of wireless communication. The US patent titled "Structure for multiple antenna configurations" (application number 20020132600) applied by Lucent Corpo...

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is that the calculation of the existing spatial correlation discrimination method is complicated and not suitable for real-time systems, and the disadvantage of the waste of calculation resources in the existing multi-antenna system working mode adjustment method is to propose a method that can be used in the system A spatial correlation discrimination method that works in real time, with a small amount of calculation, and the discrimination accuracy meets the needs of switching between MIMO modes, and a multi-antenna system working mode adjustment method that can effectively reduce the calculation load of the multi-antenna system in the mode adaptive switching

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