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Data transmission method and device

A data transmission method and time-domain position technology, applied in the field of data transmission methods and devices, can solve problems such as the inability to correctly demodulate data channels, and achieve the effect of improving efficiency

Active Publication Date: 2021-09-21
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when a data channel undergoes a power mutation or is subject to sudden interference during a transmission, at this time, the data channel may not be able to be demodulated correctly

Method used

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  • Data transmission method and device
  • Data transmission method and device
  • Data transmission method and device

Examples

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Embodiment Construction

[0088] An embodiment of the present application provides a data transmission method, which is used to send a reference signal to a base station, so that a data channel transmitted during a power change or interference period of other terminal signal state changes can be correctly demodulated.

[0089] The data transmission method provided by the embodiment of the present application is applicable to various wireless communication systems, for example, it can be applied to the fifth generation (5 th generation (5G) mobile communication system, a new radio (new radio, NR) system or a future mobile communication system, which is not limited in this application.

[0090] The method for sending and receiving a data channel provided by the embodiment of the present application may be applied to communication between two terminals or two network devices, and the embodiment of the present application will be described below using communication between a base station and a terminal as ...

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Abstract

The embodiment of the present application discloses a data transmission method and device for demodulating a data channel. The method provided by the embodiment of the present application includes: the eMBB terminal determines the preempted time domain position according to the indication information of the base station, or determines the time domain position that needs to adjust the power, or determines the time domain position that may be interfered by the transmit power of the URLLC terminal, and determines accordingly The new DMRS is sent at the position in the time domain where the new DMRS needs to be added, so that the newly added DMRS can be used for demodulating the data of the eMBB terminal, and the efficiency of eMBB data transmission is improved.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a data transmission method and device. Background technique [0002] In order for the receiver to restore the original information of the sender through the received signal, demodulation of a transmission needs to know the channel information of the transmission. Channel information can be obtained by measuring the reference signal sent by the transmitter, and this process is called channel estimation. [0003] The channel information obtained by the reference signal can be used for demodulation of the data channel which has experienced the approximate wireless channel. Signal distortion will occur when the signal is transmitted in the wireless channel, and this change will be reflected in the amplitude and phase of the signal. If it is necessary to use the channel information estimated by the reference signal transmitted on a certain symbol for the demodul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W52/32H04W72/04H04W72/08H04W72/54
CPCH04L5/0048H04L5/0094H04W52/325H04W72/0446H04W72/541H04W72/23
Inventor 陈曦张鹏
Owner HUAWEI TECH CO LTD
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