Codebook configuration selection method and electronic equipment executing same

A technology for electronic equipment and codebooks, applied in electrical components, radio transmission systems, diversity/multi-antenna systems, etc., can solve problems such as increasing the operational complexity of BS and UE

Inactive Publication Date: 2017-11-21
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, in the codebooks of the prior art, the codebooks for different numbers of antenna ports are independent of ea

Method used

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  • Codebook configuration selection method and electronic equipment executing same
  • Codebook configuration selection method and electronic equipment executing same
  • Codebook configuration selection method and electronic equipment executing same

Examples

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[0014] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following description with reference to the accompanying drawings is provided to help understand the exemplary embodiments of the present invention defined by the claims and their equivalents. It includes various specific details to help understanding, but they can only be regarded as exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Moreover, in order to make the description more clear and concise, detailed descriptions of well-known functions and configurations in the art will be omitted.

[0015] To facilitate understanding, the terms mentioned in the following description are explained. In the embodiment of the present invention, one or more mother codebooks are pre-stored in the sending end and the...

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Abstract

The invention provides a codebook configuration selection method executed by electronic equipment and electronic equipment. The electronic equipment comprises a plurality of beam levels. The codebook configuration selection method comprises the steps of when a beam level used by the electronic equipment changes from a first beam level to a second beam level in the plurality of beam levels, determining a candidate beam in beams capable of being used by the electronic equipment and a mother codebook of the second beam level; and selecting codebook configuration from the mother codebook of the second beam level according to a detection result of the candidate beam, wherein the mother codebook of the second beam level is obtained by zooming a mother codebook of the first beam level.

Description

Technical field [0001] The present invention relates to a wireless communication system, and more particularly, to a method for selecting a codebook configuration executed by an electronic device in the wireless communication system and an electronic device that executes the method. Background technique [0002] In current wireless communication systems such as LTE (Long Term Evolution), a precoding matrix codebook is pre-stored in a wireless base station (BS) and a mobile station (UE), and the codebook is pre-stored in accordance with the channel state of the mobile station. The stored codebook selects the codeword that the mobile station will use to communicate with the wireless base station. In order to be able to quickly and effectively select the codeword that the mobile station will use to communicate with the wireless base station from the pre-stored codebook, in future wireless communication systems such as LTE-Advanced (LTE-A), the successor to LTE, A method has been pr...

Claims

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Application Information

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IPC IPC(8): H04B7/04H04B7/06H04B7/08H04L1/06
CPCH04B7/0408H04B7/0456H04B7/0478H04B7/0639H04B7/0695H04B7/088H04L1/0693H04B7/04H04L1/06
Inventor 李慧玲那崇宁蒋惠玲柿岛佑一永田聪
Owner NTT DOCOMO INC
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