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Data transmission method, device, terminal device and network device

A data sending method and a technology of terminal equipment, which are applied in the communication field and can solve problems such as large data sending delays

Active Publication Date: 2021-06-15
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a data transmission method, device, terminal equipment and network equipment to solve the problem of large data transmission delay

Method used

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  • Data transmission method, device, terminal device and network device
  • Data transmission method, device, terminal device and network device
  • Data transmission method, device, terminal device and network device

Examples

Experimental program
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Embodiment Construction

[0111] figure 1 It is a schematic diagram of an application scenario of the present application, and the scenario includes a terminal device and a network device, where the network device may be a base station.

[0112] In the existing uplink data transmission based on scheduling-free instructions, the resource unit sending uplink data has a fixed timing relationship with the resource unit receiving feedback information of uplink data, such as figure 2 as shown, figure 2 It is a schematic diagram of uplink data transmission in the prior art; assuming that the fixed timing relationship is an interval of 4 time units, if the time unit corresponding to the resource unit sending uplink data is 0, then the time unit corresponding to the resource unit receiving the feedback information of uplink data for 4. If the time unit corresponding to the resource unit for sending uplink data is 1, the time unit corresponding to the resource unit for receiving feedback information of uplin...

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Abstract

The present application provides a data sending method, device, terminal equipment, and network equipment. The terminal equipment sends data to the network equipment; the time window of the control information corresponding to the data is determined; and the control information corresponding to the data is received within the time window. information, because the time window contains at least two time units, therefore, the network device can determine which control information corresponding to the data packet to be sent first in the time unit corresponding to the time window according to the timing sequence of the parsed data packet, by using data correspondence for the control information The first scrambling code is scrambled to distinguish which data the control information corresponds to. The terminal device receives the control information of the data within the time window, and obtains the control information corresponding to the descrambled data by using the first scrambling code. Therefore, the network device can first send the control information of the data packet that has been parsed first, thereby reducing the time delay of data transmission.

Description

technical field [0001] The present application relates to communication technologies, and in particular to a data sending method, device, terminal equipment and network equipment. Background technique [0002] With the rapid development of wireless communication technology, wireless resources are becoming more and more precious. [0003] In the prior art, in order to save wireless resources, in the uplink data transmission, the uplink data transmission method based on no scheduling instruction is adopted, that is, by omitting the steps of sending the uplink resource request of the terminal device and the downlink scheduling instruction of the network device, the signal is reduced. Reduce overhead and save wireless resources. However, the resource units used for uplink data transmission have a fixed timing relationship with the resource units used for feedback of the uplink data transmission. [0004] With the method in the prior art, the data transmission time delay is rel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/18H04W72/04
CPCH04L1/0061H04L1/1806H04L1/1832H04L1/187H04W72/044H04W72/0466H04L1/00H04L1/18H04W72/04H04W72/12
Inventor 吕永霞马蕊香
Owner HUAWEI TECH CO LTD