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Data transmission method and device

A technology for transmitting data and data, which is applied in the field of transmitting data, can solve problems such as differences in channel conditions, not occurring at the same time, failing to meet QoS requirements, etc., and achieve the effect of improving quality

Active Publication Date: 2017-01-04
BEIJING ZHIGU RUI TUO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, LTE TDD is a half-duplex mode. The reception and transmission of signals do not occur at the same time. The reference signal and data used to determine the channel quality are sent in different subframes. The channel quality obtained by receiving the reference When data is sent, the channel conditions may have a large difference
At this time, if the data is still sent according to the previously obtained channel quality, it is very likely that the QoS requirements cannot be met.

Method used

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Embodiment Construction

[0067] The specific implementation manner of the present application will be described in further detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0068] Those skilled in the art understand that in the embodiments of the present application, the sequence numbers of the following steps do not mean the order of execution, and the order of execution of each step should be determined by its function and internal logic, and should not be used in this application. The implementation of the examples constitutes no limitation.

[0069] In addition, terms such as "first" and "second" in this application are only used to distinguish different steps, devices or modules, etc., and neither represent any specific technical meaning, nor represent an inevitable logical sequence among them.

[0070] figure 1 is a schematic flowchart of a m...

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Abstract

The invention discloses a data transmission method. The data transmission method comprises steps of receiving at least one reference signal from a reception party through a channel while transmitting data to the reception party through the channel, and re-transmitting the data according to at least one reference signal. The invention also discloses other data transmission methods and devices. The data transmission method and device can avoid a problem that the reference signal is delayed or lagged in the current data transmission and thus QoS cannot be guaranteed, and can improve the data transmission quality.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a method and device for transmitting data. Background technique [0002] Future wireless communication services put forward high requirements for end-to-end QoS (Quality of Service). For example, in scenarios such as remote control of surgical equipment or remote control of cars, the end-to-end delay needs to be within 1ms. To avoid lag during operation. To realize extremely high QoS requirements, technically face various challenges. One of them is the need to accurately determine the channel quality, and then determine an appropriate method for data transmission. [0003] In the existing LTE (Long Term Evolution, Long Term Evolution) TDD (Time Division Duplexing, Time Division Duplexing) technology, a special reference signal is designed to facilitate the receiver to determine channel quality. [0004] However, LTE TDD is a half-duplex mode. The reception ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00
CPCH04L5/0048H04L5/006H04L1/0003H04L1/0034H04L1/08H04L43/16H04L1/0009H04L43/08
Inventor 黄伟才
Owner BEIJING ZHIGU RUI TUO TECH