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Data sending method and device, terminal device and network device

A data transmission method and technology of terminal equipment, which are applied in the directions of digital transmission system, error prevention/detection using return channel, electrical components, etc., can solve the problem of large delay in data transmission, etc.

Active Publication Date: 2018-10-09
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 sending method and device, terminal device and network device
  • Data sending method and device, terminal device and network device
  • Data sending method and 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 invention provides a data sending method and device, a terminal device and a network device. Data is sent to the network device through the terminal device. A time window of control information corresponding to the data is determined. The control information corresponding to the data is received in the time window. Because the time window includes at least two time units, according to a time sequence which parses a data packet, the network device can determine the control information corresponding to which data packet is first sent in the time units corresponding to the time window, and distinguish which data corresponds to the control information by scrambling the control information by using a first scrambling code corresponding to the data. The terminal device receives the control information of the data in the time window, and descrambles the control information corresponding to the data by using the first scrambling code. Therefore, the network device can first send the control information of the data packet which is first parsed, and so the time delay of data transmission is reduced.

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 Applications(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
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