Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Data transmission device, method and system

A technology for terminal equipment and downlink data, applied in the field of communication, can solve the problems of limited Doppler frequency offset, inability to better improve UE downlink average throughput, large error, etc.

Inactive Publication Date: 2020-01-31
HUAWEI TECH CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the high-speed rail mobile communication network, due to the high moving speed of the UE, the error between the Doppler frequency offset estimated by the UE according to the CRS and the Doppler frequency offset actually existing in the network will be greater, and due to The moving speed of the UE is high, the Doppler frequency offset actually existing in the network will be higher, and the Doppler frequency offset estimated by the UE will be higher, but the maximum Doppler frequency offset that the UE can compensate is limited. In this way, It will lead to unsatisfactory demodulation performance of DMRS and data, resulting in the inability to improve the average downlink throughput of UE

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
  • Data transmission device, method and system
  • Data transmission device, method and system
  • Data transmission device, method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0092] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0093] Additionally, the terms "system" and "network" are often used herein interchangeably. The term "and / or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character " / " in this article generally indicates that the contextual objects...

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 invention discloses a data transmission device, method and system, and relates to the field of communications, and aim to better improve the downlink average throughput of a UE. According to the specific scheme, the method comprises: a determining unit determining downlink frequency offset according to a received uplink signal sent by terminal device, and determining second transmitting frequency according to the downlink frequency offset and first transmitting frequency; the transmitting unit transmitting a downlink signal to the terminal device based on the second transmitting frequencydetermined by the determining unit, so that the terminal device receives the downlink signal based on a receiving frequency corresponding to the first transmitting frequency; wherein the downlink signal at least comprises one of DMRS and downlink data. The method is used in the data transmission process.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data transmission device, method and system. Background technique [0002] With the rapid development of high-speed rail, people often choose to take convenient transportation such as high-speed rail when traveling, and with the wide application of user terminals (English: User Equipment, UE for short), when people take high-speed rail, The demand for data services in the high-speed rail mobile communication network is increasing day by day. Therefore, how to improve the throughput of the UE in the high-speed rail mobile communication network is a problem that operators are more concerned about. [0003] During the high-speed movement of the UE, the high-speed rail mobile communication network will experience Doppler frequency shift. In this way, it is very likely that the UE cannot correctly demodulate the data sent by the base station, resulting in a low average downlink thr...

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 Applications(China)
IPC IPC(8): H04W56/00H04W72/04H04W72/12
CPCH04L27/2657H04L27/2675H04L27/0014H04W56/0035H04B1/707B63B2201/16H01Q1/3216H04W84/005
Inventor 戴喜增李启明韩静李安俭林凡奎
Owner HUAWEI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com