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Beam selection method and device based on beam forming, base station and terminal

A beamforming and terminal technology, applied in the field of communication, can solve problems such as serious flash effects

Active Publication Date: 2017-06-23
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Abstract
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Problems solved by technology

Since high-frequency communication requires large-scale array antennas, this also means that the flash effect becomes more serious

Method used

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  • Beam selection method and device based on beam forming, base station and terminal
  • Beam selection method and device based on beam forming, base station and terminal
  • Beam selection method and device based on beam forming, base station and terminal

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Embodiment Construction

[0114] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0115] The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. As used in this disclosure and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be unders...

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Abstract

The invention provides a beam selection method and device based on beam forming, a base station and a terminal. The method comprises a step of generating a pseudo random orthogonal reference signal sequence, a step of determining an alternative reference signal and an alternative emission beam corresponding to each sub frame sequence according to a first preset pseudo random mapping relation among a reference signal sequence, an emission beam sequence and a sub frame number, a step of sending the alternative reference signal corresponding to the current sub frame number to the terminal by the alternative emission beam corresponding to the current sub frame number through a mode of beam forming according to a time sequence, and a step of carrying out beam selection through a target emission beam and the target reception beam of the terminal according to the beam information of the target emission beam returned by the terminal. According to the beam selection method and device based on beam forming, the base station and the terminal, the inter-cell interference can be greatly reduced, a flash effect is effectively overcome, a problem of the wrong selection of the target emission beam and the target reception beam caused by reference signal collision is reduced, and the performance of the communication system is improved.

Description

technical field [0001] The present disclosure relates to the field of communication, and in particular to a method and device for selecting a beam based on beamforming, a base station, and a terminal. Background technique [0002] With the development of the wireless communication industry, spectrum resources are facing an increasingly scarce dilemma. Therefore, high-band mobile communication is proposed as an enabling technology for the next communication era. One of the biggest challenges of high-band mobile communications is that path loss increases with frequency. [0003] Because the path loss in the high frequency band is too large, it is necessary to use the beamforming method to increase the power of the received signal. For data transmission, the beamforming of the transmit and receive beams can be aligned to maximize speed. However, in the related art, this beam alignment does not exist before the terminal accesses the network. Therefore, the base station needs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0408H04B7/06H04B7/08
CPCH04B7/0408H04B7/0695H04B7/088
Inventor 魏娜徐然
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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