Non-reciprocal all-digital beamforming antenna array with transmit and receive patterns and its implementation method

An antenna array and beamforming technology, which is applied in the field of microwave and millimeter wave wireless communication systems, can solve the problems of restricting the application of all-digital beamforming systems, increasing hardware costs, and difficult data volumes, so as to reduce the total amount of data processing and reduce hardware costs , to ensure the effect of robustness

Active Publication Date: 2021-05-11
SOUTHEAST UNIV
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  • Application Information

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Problems solved by technology

In order to realize broadband signal sampling and adopt large-scale antenna technology, expensive multi-channel high-speed DAC / ADC chips must be used, and the hardware cost is greatly increased.
On the other hand, how to deal with such a huge amount of data has also become a difficult problem
These problems limit the application of all-digital beamforming systems in the field of communication

Method used

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  • Non-reciprocal all-digital beamforming antenna array with transmit and receive patterns and its implementation method
  • Non-reciprocal all-digital beamforming antenna array with transmit and receive patterns and its implementation method
  • Non-reciprocal all-digital beamforming antenna array with transmit and receive patterns and its implementation method

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Embodiment Construction

[0018] In order to describe the technical solution disclosed in the present invention in detail, the technical solution of the present invention will be further introduced below in combination with specific embodiments and accompanying drawings.

[0019] The invention discloses an all-digital beamforming antenna array with a non-reciprocal sending and receiving pattern and a realization method thereof. Digital transceiver beamforming system architecture, and the number of receiving or transmitting channels is reduced from the original M×N to P×Q (P

[0020] Specifically, such as figure 1 As shown, an all-digital beamforming antenna array with a non-reciprocal transmit-receive pattern includes M×N transmit-receive channel units arranged periodically in a rectangular grid. The number of sub-units one 2 is a part of the array 1 . Unit channel 4 in subunit 1 has both transmitting and receiving functions. The transmitting part of these channels is connected to a digital ...

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Abstract

The invention discloses a non-reciprocal all-digital beamforming antenna array with a transmitting and receiving pattern and a realization method thereof. The array realizes the construction of a wireless communication system, and the transmitting and receiving channel units in the array realize the transmitting and receiving of signals. The grid arrangement includes a part of the channel that only has a single function of receiving or transmitting. The transmitting and receiving beam pattern formed by the all-digital beamforming array disclosed in the present invention is non-reciprocal, that is, the receiving beam pattern and the transmitting beam pattern are not the same, and the system hardware cost can be greatly reduced without loss of system performance, thereby Promote the large-scale application of all-digital beamforming array wireless communication systems.

Description

technical field [0001] The invention relates to a microwave and millimeter wave wireless communication system, in particular to a non-reciprocal all-digital beamforming antenna array with a transmitting and receiving pattern and a realization method thereof. Background technique [0002] After the evolution of 2\3\4G era, mobile communication technology will gradually enter the 5G era. Compared with 4G technology, 5G hopes to achieve a 1000-fold increase in network capacity, while achieving a data transmission delay of less than 1ms. In order to achieve the above goals, key technologies such as Ultra-densification, mm-Wave, and Massive MIMO will be adopted. Among them, the all-digital beamforming system is the most direct and effective system solution for massive MIMO because it can conveniently and quickly realize beamforming, multi-beam and downlink data precoding in the digital domain, reducing the use of analog phase shifters. On the other hand, compared with hybrid be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0408H04B7/06H04B7/08
CPCH04B7/0408H04B7/0617H04B7/0897
Inventor 洪伟郭翀陈继新周健义王海明田玲余超于志强蒋之浩吴凡
Owner SOUTHEAST UNIV
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