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Multiple-input multiple-output transmission method, terminal and base station

A transmission method and multi-output technology, applied in the field of communication, can solve problems such as destroying LoSMIMO transmission conditions, inability to perform multi-stream data parallel transmission, and LoSMIMO being difficult for mobile communication

Active Publication Date: 2020-10-09
HONOR DEVICE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the process of mobile communication, the terminal is moving in real time, and the channel status such as the distance between the terminal and the base station and the antenna inclination of the terminal is constantly changing. It cannot guarantee that the phase difference between the two paths is always 90°, thus destroying the LoS MIMO transmission conditions, parallel transmission of multi-stream data is not possible
Therefore, LoS MIMO is difficult to use in mobile communication

Method used

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  • Multiple-input multiple-output transmission method, terminal and base station
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  • Multiple-input multiple-output transmission method, terminal and base station

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Embodiment Construction

[0081] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0082] figure 1 It is a LoS MIMO transmission model diagram applicable to the MIMO transmission method of the present invention. Please refer to figure 1 , for a LoS transmission array with N sending and M receiving, the distance between each antenna at the receiving end is d r , the antenna inclination angle at the receiving end is θ r ,...

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Abstract

Provided in the embodiments of the present invention are a multiple input multiple output (MIMO) transmission method, terminal, and base station. The method comprises: receiving, by a base station, a state ratio sent from a terminal, and determining, according to the state ratio, an antenna array used for a line of sight (LoS) MIMO transmission; and transmitting data via the antenna array and the terminal, such that the base station employs the determined antenna array and the terminal to transmit data in a subsequent communication. Thereby, when a physical position of a terminal is changed, a base station adjusts, via self-adaption, system parameters in a mobile communication, and an LoS MIMO transmission is achieved.

Description

technical field [0001] The present invention relates to communication technologies, and in particular to a multiple input multiple output (Multiple Input Multiple Output, MIMO) transmission method, a terminal and a base station. Background technique [0002] MIMO is a technology that uses multi-antenna transmission at the transmitter and receiver. When the correlation of MIMO channels is low or irrelevant, different signals can be transmitted in parallel on multiple antennas, so as to achieve the purpose of improving spectrum utilization. In a Line of Sight (LoS) channel environment, the channel has high correlation and is not suitable for transmitting multiple streams. LoSMIMO is a technology that can still achieve MIMO multiplexing under the LoS channel environment. [0003] At present, the LoS MIMO technology is mainly used in microwave backhaul (backhaul) transmission. The transceiver antenna is fixed on the transmission tower, and the LoS channel is between the transce...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/04H04B7/0413H04B7/0404
CPCH04B7/04
Inventor 李元杰任海豹
Owner HONOR DEVICE CO LTD