Adaptive switching method of SU-MIMO mode and MU-MIMO mode and adaptive switching apparatus thereof

A technology of adaptive switching and mode switching, which is applied in the directions of space transmit diversity, baseband system components, diversity/multi-antenna systems, etc., can solve problems such as system burden, system instability, and services that cannot meet the expected requirements, and achieve Improved overall performance, precise spectral efficiency, and improved stability
CN102497222AInactive Publication Date: 2012-06-13GUILIN UNIV OF ELECTRONIC TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUILIN UNIV OF ELECTRONIC TECH
Publication Date
2012-06-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an adaptive switching method of an SU-MIMO mode and an MU-MIMO mode and an adaptive switching apparatus thereof. Estimation is carried out on a current signal environment to calculate SINRs of an SU-MIMO mode and an MU-MIMO mode; according to the SINRs, table looking up is carried out to obtain matched modulation modes and error rates; and then, spectral efficiencies of the two modes are calculated and then are compared as well as the mode with the high spectral efficiency is used as an optimal mode in a channel environment. In addition, a tolerance mechanism is added in the switching process so as to avoid a ping-pong effect. According to the invention, characteristics of stable performance, a few response time and low system load can be realized.
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Description

technical field

[0001] The present invention relates to the technical field of wireless communication, in particular to an adaptive switching method and device for SU-MIMO and MU-MIMO modes. Background technique

[0002] The development of wireless communication technology is changing with each passing day, and more and more wireless services have entered our life, and the requirements for data transmission rate have also been higher and higher. But the lack of wireless resources has become a bottleneck restricting the development of wireless communication. Making full use of precious spectrum resources and improving the utilization of spectrum resources has become a hot issue in wireless communication research. Multiple-input multiple-output (MIMO) technology can achieve linear increase in capacity without increasing spectrum resources and antenna transmission power, and has become the core technology of wireless communication. From the perspective of the number of users ...

Claims

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