Data transmission method, data reception method, transmission end device and reception end device

A data transmission method and data block technology, applied in the field of communication, can solve problems such as frequency offset estimation of difficult data blocks, and achieve the effects of ensuring accuracy, realizing interference randomization, and improving data transmission efficiency.

Active Publication Date: 2017-09-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, it is difficult for the receiver device to use the repeatedly sent data blocks to perform frequency offset estimation and other processing

Method used

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  • Data transmission method, data reception method, transmission end device and reception end device
  • Data transmission method, data reception method, transmission end device and reception end device
  • Data transmission method, data reception method, transmission end device and reception end device

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Embodiment Construction

[0188] 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.

[0189]The data sending method provided by each embodiment of the present invention is applicable to a network system based on LTE communication technology, that is, an LTE network system. The LTE network system may include, for example, an Internet of Things (Internet Of Things, IOT for short) system. As the "Internet of things communication...

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PUM

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Abstract

The invention provides a data transmission method, a data reception method, a transmission end device and a reception end device. The data transmission method comprises steps of performing scrambling code initialization to generate a scrambling code, performing scrambling on a data block according to the scrambling code, repeatedly transmitting the scrambled data block, performing scrambling code initialization when a time interval from the last time scrambling code initialization is greater than or equal to a preset scrambling code initialization parameter threshold value, afresh generating a scrambling code, performing scrambling on the data block again according to the afresh-generated scrambling code and repeatedly transmitting the scrambled data block. The data transmission method, the data reception method, the transmission end device and the reception end device can improve data transmission efficiency between the transmission end device and the reception end device.

Description

technical field [0001] The embodiments of the present invention relate to communication technologies, and in particular to a data sending method, a data receiving method, a sending end device, and a receiving end device. Background technique [0002] With the development of communication technology, Long Term Evolution (LTE for short) communication technology has become more and more mature, and the network coverage of the LTE system is also becoming denser. [0003] In an LTE system, dense network coverage causes interference between adjacent cells. In order to reduce the interference between adjacent cells, the scrambling code initialization can be used to enable the sending device to perform scrambling initialization once in each subframe. The data sent in each subframe has a different scrambling code. The scrambling code is used to scramble the data block, and the scrambled data block is sent, so that randomization of interference can be realized. In order to ensure th...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L1/18H04W72/04
CPCH04L5/0007H04W52/26H04W52/262H04W52/10H04L1/06H04L27/26H04W52/38H04W52/24H04W72/0446
Inventor 杨育波罗超刘铮铁晓磊
Owner HUAWEI TECH CO LTD
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