Unlock instant, AI-driven research and patent intelligence for your innovation.

A data transmission method and device based on nb-iot

A data transmission method and data technology, applied in the field of communication, can solve the problems of high data transmission failure rate and high number of retransmissions.

Active Publication Date: 2021-02-19
HISENSE
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The embodiment of the present invention proposes a data transmission method and device based on NB-IoT to solve the problem of high data transmission failure rate and high number of retransmissions caused by NB-IoT due to small-scale channel fading

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A data transmission method and device based on nb-iot
  • A data transmission method and device based on nb-iot
  • A data transmission method and device based on nb-iot

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0116] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0117] refer to figure 1 , which shows a flow chart of the steps of an NB-IoT-based data transmission method according to an embodiment of the present invention, which is applied in a user equipment (User Equipment, UE), and may specifically include the following steps:

[0118] Step 101, acquire source data to be sent.

[0119] In a specific implementation, the application layer of the user equipment can submit the source data to the NB-IoT protocol stack to be sent to the base station.

[0120] Step 102, performing segmentation processing on the source data to obtain source segment data.

[0121] In the embodiment of the present invention, on the basis of not changing the original structure of the NB-IoT protocol stack, in the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the present invention provides a data transmission method and device based on NB-IoT, and the method is applied in a user equipment, including: obtaining source data to be sent; performing segmentation processing on the source data to obtain source segments data; add a check code after the source segment data to obtain the check segment data; generate target data according to the check segment data; send the target data to the base station through the cellular-based narrowband Internet of Things NB‑IoT. Since the strength of the wireless signal changes with time, by adding a check code to the source data during data transmission, the error correction capability of the base station can be improved, and the probability of successful decoding can be improved, thereby reducing the need for weak signal coverage. The probability of transmitting data is used to weaken the impact of small-scale channel fading on data transmission, reduce the number of retransmissions, and reduce the power consumption of user equipment.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to an NB-IoT-based data transmission method and an NB-IoT-based data transmission device. Background technique [0002] The cellular-based Narrow Band Internet of Things (NB-IoT) has become an important branch of the Internet of Everything. [0003] NB-IoT is built on a cellular network and only consumes about 180KHz of bandwidth. It can be directly deployed on a GSM (Global System for Mobile Communication, Global System for Mobile Communications) network, a UMTS (Universal Mobile Telecommunications System, Universal Mobile Communications System) network or an LTE (Long Term Evolution, long-term evolution) network to reduce deployment costs and achieve smooth upgrades. [0004] NB-IoT has a low transmission rate, does not support frequency hopping, does not support uplink CQI (channel quality indication, channel quality indication) reporting, and does not support code...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02H04L1/00
CPCH04L1/0061H04W52/0209Y02D30/70
Inventor 吕叶青
Owner HISENSE