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

Time synchronization method between direct-communication UE (user equipment) and UE

A technology of time synchronization and time deviation, applied in the field of communication, can solve problems such as difficult time synchronization of direct-to-UE

Inactive Publication Date: 2015-04-29
HUAWEI TECH CO LTD
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a method for time synchronization between direct UEs and UEs, so as to solve the problem of difficult time synchronization between direct UEs in the prior art

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
  • Time synchronization method between direct-communication UE (user equipment) and UE
  • Time synchronization method between direct-communication UE (user equipment) and UE
  • Time synchronization method between direct-communication UE (user equipment) and UE

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0071] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0072] see figure 1 , is a flow chart of an embodiment of the time synchronization method between direct UEs in the present invention, and this embodiment is described from the side of the first UE performing D2D communication:

[0073] Step 101: When a direct link is established between the first UE and the second UE, configuration parameters sent by the base station are received, where the configuration parameters include a second time-frequency resource location for the second UE to send a sounding signal.

[0074] In this em...

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

Embodiments of the present invention disclose a time synchronization method between direct-through UEs, and UEs. The method comprises: when a direct-through link is established between a first UE and a second UE, receiving a configuration parameter sent by a base station, the configuration parameter comprising a second time frequency resource location of the second UE sending a detection signal; acquiring, according to a first downlink timing between base stations, a second detection signal sent by a second UE; detecting the second detection signal according to signal relativity, and acquiring a first time deviation; and performing time synchronization with the second UE according to the first time deviation. The embodiments of the present invention can adjust, by means of detection signals between direct-through UEs, data sending timing of an originating UE between the direct-through UEs, so as to make the data sending timing of the originating UE be consistent with that of a receiving UE, thereby making the direct-through UEs synchronously and transmit data at regular time according to the adjusted time. The accuracy of data transmission between direct-through UEs is ensured, and the frequency utilization efficiency of the system is improved.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a time synchronization method between direct user equipment (User Equipment, UE) and the UE. Background technique [0002] In recent years, wireless communication technology has achieved great development, and existing commonly used wireless communication networks include cellular networks. In a cellular network, when a data packet is transmitted between two UEs with a long transmission distance, the data packet needs to be transmitted from the originating UE to the base station, and then from the base station to the receiving UE. The above transmission process needs to occupy two air interface resources . When the transmission distance between two UEs is relatively short, in order to save air interface transmission resources and reduce the overhead of base station control signaling, communication can be performed in a device-to-device (D2D) manner, that is,...

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): H04W24/00H04W56/00
CPCH04W48/16H04W56/00
Inventor 张维良
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