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

Transmission method, device and system for uplink retransmission data

A technology for retransmitting data and sending methods, which is applied in the field of communication, and can solve problems such as transmission conflicts, data transmission failures, poor matching, etc., to achieve the effects of ensuring correctness, improving efficiency, and reducing resource occupancy

Active Publication Date: 2017-07-04
HUAWEI TECH CO LTD
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In a user group competing for the same competitive resource, transmission conflicts may occur due to problems such as poor matching of virtual multiple-input multiple-output technology (English: Multiple-Input Multiple-Output, MIMO) between users or poor DMRS orthogonality between users, that is, The base station cannot distinguish the data sent by each UE, resulting in data transmission failure
Under this contention transmission mechanism, the UE that fails to transmit needs to retransmit data on the original resources. At this time, the retransmission of uplink data will still conflict, resulting in the failure of retransmission of uplink data.

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
  • Transmission method, device and system for uplink retransmission data
  • Transmission method, device and system for uplink retransmission data
  • Transmission method, device and system for uplink retransmission data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0060] The "module" mentioned in this article refers to the program or instruction that can realize certain functions stored in the memory; the "unit" mentioned in this article refers to a functional structure divided according to logic, and the "unit" can be composed of Pure hardware implementation, or a combination of software and hardware.

[0061] Please refer to figure 1 , which shows a schematic structural diagram of a data transmission system provided by an exemplary embodiment of the present invention. The data transmission system includes: at least one base station 110 and at least one user equipment 120 .

[0062] In a data transmission system, there are a base station 110 and a user equipment 120, and the base station send...

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 transmission method, a transmission device and a transmission system for uplink retransmission data, and belongs to the technical field of communication. The method comprises the steps of receiving data transmitted by different user equipment (UE) in a same competitive resource group on a same competitive resource; demodulating the data sent by each UE according to a demodulation reference signal (DMRS) sequence carried in the data; and when the data sent by at least two pieces of UE is failed to be demodulated, scheduling the UE of which the data is failed to be demodulated via an uplink schedule signaling UL-grant to retransmit data on the specified non-competitive resource. The technical problem that in the prior art, retransmission of the uplink data is failed is solved, and retransmission efficiency of the uplink data is improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, device and system for sending uplink retransmission data. Background technique [0002] Currently in the Long Term Evolution system (English: Long Term Evolution, LTE), the scheduling of uplink and downlink data is through a physical downlink control channel (English: Physical Downlink Control CHannel, PDCCH) or an enhanced physical downlink control channel (English: Enhanced-Physical Downlink Control Channel, E-PDCCH) to implement one-to-one scheduling. With the development of communication technology, the increase in the number of user connections and the potential increase in the number of concurrent access users pose a challenge to the capacity of the control channel, and the optimization of the control channel overhead has become an important research direction. [0003] The scheme of uplink contention transmission based on group scheduling can effe...

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
IPC IPC(8): H04L5/00H04W72/04
CPCH04L5/0048H04W72/23H04W74/08H04L5/0044H04L5/0051H04L5/0085H04L5/0055H04L1/1887
Inventor 孙昊成艳
Owner HUAWEI TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com