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Hybrid beam forming transmission method and system

A technology of hybrid beamforming and transmission methods, applied in the field of hybrid beamforming transmission methods and systems, capable of solving problems such as lack and infeasibility

Inactive Publication Date: 2018-11-16
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, there is no effective solution for hybrid beamforming using partial connections. The structural change of partial connections makes the hybrid beamforming algorithm originally suitable for full connections unfeasible under partial connection subarrays. Therefore, it is necessary to seek new solutions

Method used

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  • Hybrid beam forming transmission method and system
  • Hybrid beam forming transmission method and system
  • Hybrid beam forming transmission method and system

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Embodiment Construction

[0038] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0039] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0040] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0041] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, techniques, methods and devices should be considered part of the description. ...

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Abstract

The invention discloses a hybrid beam forming transmission method and system. The hybrid beam forming transmission method comprises the following steps: a plurality of first antennas of a sending endbase station are connected with a plurality of first radio frequency links through first-part connection sub-arrays and serve a single receiving end device; a plurality of second antennas arranged onthe receiving end device are connected with a plurality of second radio frequency links through second-part of connection sub-arrays, wherein each second radio frequency link is connected with one ormore second antennas arranged on a second-part connection sub-array that are different from each other; and the sending end base station and the receiving end device perform united beam training to confirm an analog weighted coefficient matrix and a digital weighted coefficient matrix, so that downlink transmission of data is carried out based on the analog weighted matrix and the digital weightedmatrix. The hybrid beam forming transmission method and system can provide an effective single-user multi-data stream transmission scheme based on the hybrid beam forming structure of part connectionsub-arrays, which has good performances, reduces the complexity of hardware, and can effectively guarantee spectrum efficiency and improve energy efficiency.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a hybrid beamforming transmission method and system. Background technique [0002] With the increasing popularity of mobile terminals and the rapid development of mobile Internet services, there are higher expectations and requirements for the capacity and transmission rate of 5G mobile communication systems, and millimeter wave high-frequency communication has attracted extensive attention from the industry. Due to the short wavelength of the millimeter wave, the device can be equipped with hundreds of antenna elements to form a massive MIMO array, thereby greatly improving spectral efficiency. However, in practical applications, the process of high-frequency radio frequency units is relatively complicated, and the analog-to-digital conversion of large-scale signals will bring a lot of energy consumption (especially for high-frequency devices), and the complexity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04B7/08H04B7/0456
CPCH04B7/0456H04B7/0617H04B7/0691H04B7/0695H04B7/086H04B7/0874H04B7/088Y02D30/70
Inventor 刘丹谱武霄泳刘岩松张志龙尹长川
Owner BEIJING UNIV OF POSTS & TELECOMM
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