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Self-adaptive adjustment multi-antenna communication method and communication system according to channel space correlation

A technology of spatial correlation and self-adaptive adjustment, applied in diversity/multi-antenna systems, spatial transmit diversity and other directions

Inactive Publication Date: 2006-02-08
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0019] In view of the problem that the existing multi-antenna transmission scheme cannot continue to perform high-speed and high-quality communication under the condition that the channel spatial correlation changes, the purpose of the present invention is to provide a multi-antenna communication method adaptively adjusted according to the channel spatial correlation, Its advantage is that it can adopt different multi-antenna transmission schemes according to the change of channel spatial correlation

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  • Self-adaptive adjustment multi-antenna communication method and communication system according to channel space correlation
  • Self-adaptive adjustment multi-antenna communication method and communication system according to channel space correlation
  • Self-adaptive adjustment multi-antenna communication method and communication system according to channel space correlation

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Embodiment Construction

[0072] A specific embodiment of the present invention is given below. The space-time coding and decoding of control signaling information adopts STBC codes which are less affected by channel spatial correlation changes. In the transmission of service information, both the adaptive transmit beamforming and the adaptive receive beamforming of the transmission scheme of the smart antenna adopt an algorithm based on the minimum mean square error criterion. The detection algorithm of V-BLAST adopts the interference cancellation algorithm based on the minimum mean square error criterion (MMSE-SIC). The number of antennas at the base station is 8, which are divided into two groups with 4 antennas in each group. The spacing between each antenna of the first group The wavelength, the interval between each antenna of the second group is 10 times the wavelength. The first group is used as the base station antenna of the smart antenna, the second group is used as the base station ante...

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Abstract

Disclosed is a communication system and multi antenna communication method of signal channel space correlation self-adapting adjustment. The communication method comprises: sending control signal, detecting channel status information; selecting communication initial transmission scheme; business information transmission; monitoring channel change and switching transmission schemes during communication and coordinating communication clients. The inventive communication system comprises: transmitter for controlling signal information and receiver, business information transmitter and receiver. The invention is characterized in that it exploits intelligent antenna scheme in strong correlation for channel space and exploits V-BLAST scheme in weak correlation for keeping higher transmission ratio and good communication quality.

Description

technical field [0001] The invention relates to a multi-antenna communication method adaptively adjusted according to channel space correlation, which belongs to the technical field of communication, and in particular relates to a communication method of multi-antenna technology in the communication technology. Background technique [0002] The multi-antenna technology is a hot technology in the current wireless communication technology, mainly including Multiple Input Multiple Output (MIMO) technology and Smart Antennas (Smart Antennas) technology. [0003] MIMO technology adopts space-time coding. According to the classification of space-time codes used, there are two main categories: space-time trellis codes (Space Time Trellis Codes, STTC) and space-time block codes (Space Time Block Codes, STBC) based on transmit diversity. ; Layered Space Time Codes (LSTC) based on non-transmit diversity. [0004] Space-time trellis code is a design that comprehensively considers chan...

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Application Information

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IPC IPC(8): H04B7/06H04B7/08
Inventor 孔婷唐友喜赵宏志邵士海
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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