Method for selecting codebook configuration and electronic equipment for executing the method

A technology of electronic equipment and codebook, which is applied to electrical components, radio transmission systems, diversity/multi-antenna systems, etc., and can solve problems such as increasing the complexity of BS and UE operations

Active Publication Date: 2021-09-07
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 each other, as the number of antenna ports increases, this will further increase the operational complexity of the BS and UE

Method used

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  • Method for selecting codebook configuration and electronic equipment for executing the method
  • Method for selecting codebook configuration and electronic equipment for executing the method
  • Method for selecting codebook configuration and electronic equipment for executing the method

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Embodiment Construction

[0014] Embodiments of the present invention will be described below with reference to the drawings. The following description with reference to the accompanying drawings is provided to assist understanding of example embodiments of the invention as defined by the claims and their equivalents. It includes various specific details to aid in understanding but they are to be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, detailed descriptions of functions and constructions well-known in the art will be omitted to make the description clearer and more concise.

[0015] For ease of understanding, terms mentioned in the following description are explained. One or more mother codebooks are pre-stored in both the transmitting end and the receiving end of the embodiments of the present inv...

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Abstract

The present invention proposes a selection method of a codebook configuration performed by an electronic device and the electronic device, wherein the electronic device has a plurality of beam levels. The method includes: when the beam class used by the electronic device is changed from a first beam class among the plurality of beam classes to a second beam class, determining a candidate beam among beams usable by the electronic device and the selected beam class. The mother codebook of the second beam level; and according to the detection result of the candidate beam, select a codebook configuration from the mother codebook of the second beam level, wherein the mother codebook of the second beam level is obtained by scaling the mother codebook of the first beam level.

Description

technical field [0001] The present invention relates to a wireless communication system, in particular to a method for selecting a codebook configuration performed by an electronic device in the wireless communication system and an electronic device for executing the method. Background technique [0002] In current wireless communication systems such as LTE (Long Term Evolution), the precoding matrix codebook is stored in advance in the wireless base station (BS) and mobile station (UE), and the precoding matrix codebook is stored in advance according to the channel state of the mobile station. Codewords to be used by the mobile station to communicate with the radio base station are selected from the stored codebook. In order to be able to quickly and effectively select the codewords 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0456H04L1/06
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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