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Radio transmission method for multiple self adaption antenna array

An adaptive antenna and wireless transmission technology, applied in the direction of diversity/multi-antenna system, space transmit diversity, etc., can solve the problems of coherent MIMO antenna incoherence contradiction of smart antenna array elements, and achieve improved communication performance and good communication performance. Effect

Inactive Publication Date: 2007-06-27
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

However, there are certain problems in the combination of the two at present, that is, the contradiction between the coherence of the elements of the smart antenna array and the incoherence of the MIMO antenna

Method used

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  • Radio transmission method for multiple self adaption antenna array
  • Radio transmission method for multiple self adaption antenna array
  • Radio transmission method for multiple self adaption antenna array

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Embodiment Construction

[0018] In Figure 1, the mobile station user uses m antennas, and the base station uses N smart antenna arrays, each antenna array contains n antenna elements. Wherein, m, N and n can all be any integer greater than 0. During uplink transmission (the mobile station sends a signal and the base station receives it), at the sending end, the mobile station utilizes space-time processing technology based on multiple-input multiple-output (MIMO) based on space diversity or space-time processing technology based on MIMO space-time multiplexing from m antennas At the same time, the signals are sent out. At the receiving end, the signals are simultaneously received by the non-coherent N smart antenna arrays and transmitted to the base station processing unit (BSH) through the optical fiber link. shape processing, and then use MIMO technology to perform diversity and combination processing on the irrelevant N smart antenna array signals. During downlink transmission (the base station sen...

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Abstract

This invention relates to a radio transmission method for multiple adaptive antenna arrays, in which, a mobile station utilizes MIMO empty time process technology to send signals from multiple antennas simultaneously when the mobile station transmits signals and the base station receives them, multiple intelligent antenna arrays receive signals simultaneously and transmit them to a base station process unit (BSH) via fiber links, which first of all carries out adaptive wave beam shaping process to the received signals of each intelligent antenna array then utilizes the MIMO technology to diversify and merge signals of the array, when the base station transmits signals and the mobile station receives them, the BSH divides the signals into multiple signals by MIMO empty time process then carries out adaptive wavebeam shaping to the multiple signals to be transmitted by multiple intelligent antennas at the same time, and the mobile station gets signals by related empty time process.

Description

【Technical field】 [0001] The present invention relates to a transmission method in wireless communication, in particular to a wireless transmission method of a multi-adaptive antenna array 【Background technique】 [0002] With the rapid development of mobile communication, how to use limited spectrum resources to achieve the highest possible communication capacity while ensuring communication quality has become a core issue in the development of mobile communication. How to effectively eliminate the influence of co-channel interference (CCI) and multipath fading in the wireless communication environment becomes the key to solve the problem. [0003] Among the existing wireless communication technologies, the smart antenna technology represented by adaptive beamforming and the multiple-input multiple-output (MIMO) antenna technology represented by spatial multiplexing and spatial diversity are generally favored by people. . [0004] The smart antenna array is an adaptive ant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04B7/08
Inventor 王志辉周文安宋俊德
Owner BEIJING UNIV OF POSTS & TELECOMM
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