Data transmission method, device, base station and terminal
A data transmission method and data technology, which is applied in the direction of antennas, electrical components, and individually powered antenna arrays, etc., and can solve problems such as the failure of terminals to successfully receive data, low signal reception power, and low transmission power.
Active Publication Date: 2020-03-03
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Problems solved by technology
However, in the scenario where the terminal moves at high speed, the location of the terminal is constantly changing. For example, the signal transmitted by the base station at the first moment corresponds to the first location of the terminal, and the terminal is no longer at the first location when it receives the signal at the second moment. location, assuming that it is at the second location, and the transmission power of the signal corresponding to the second location is relatively small, so that the actual signal reception power of the terminal is low, that is, the beam formed by the base station antenna is not aligned with the actual location of the terminal due to the movement of the terminal position, resulting in the terminal not being able to successfully receive data
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[0097]In order to make the purpose, technical solution and advantages of the present disclosure clearer, the implementation manners of the present disclosure will be further described in detail below in conjunction with the accompanying drawings.
[0098] 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.
[0099] figure 1 is a flowchart of a data transmission method shown according to an exemplary embodiment, such as figure 1 As shown, appli...
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The invention provides a data transmission method and device, a base station and a terminal, and belongs to the technical field of communications. The method comprises: acquiring to-be-transmitted data; performing a first phase conversion on the to-be-transmitted data, thereby obtaining multi-path first signals; transmitting the multi-path first signals to the terminal via a first antenna array, wherein a coverage angle of a wave beam formed by the first antenna array in a horizontal direction is larger than a coverage angle thereof in a vertical direction; performing a second phase conversion on the to-be-transmitted data, thereby obtaining multi-path second signals; and transmitting the multi-path second signals to the terminal via a first antenna array, wherein a coverage angle of a wave beam formed by the first antenna array in a horizontal direction is smaller than a coverage angle thereof in a vertical direction. The to-be-transmitted data is alternatively subject to the first phase conversion and the second phase conversion, so that the wave beam formed by the first antenna array can have relatively larger coverage angles alternatively in the horizontal direction and the vertical direction, the reliability of a data link is improved, and the success rate of receiving data by the terminal is improved.
Description
technical field [0001] The present disclosure relates to the technical field of wireless communication, and in particular to a data transmission method, device, base station and terminal. Background technique [0002] In the process of wireless communication, transmission loss usually occurs when data is sent from the base station to the terminal. The longer the transmission distance and the higher the carrier frequency, the greater the transmission loss. When the transmission loss is large, the signal reception power of the terminal will be too low, resulting in data reception failure. [0003] In related technologies, when the carrier frequency is high, in order to ensure that the terminal can successfully receive data, the base station can use beamforming technology for data transmission. The process can be as follows: the base station performs different phase transformations on the data respectively to form multiple signals, and then The multi-path signals are respectiv...
Claims
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IPC IPC(8): H04W16/18H04W16/28H01Q3/30H01Q21/22
CPCH01Q3/30H01Q21/22H04W16/18H04W16/28
Inventor 魏娜徐然
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD