A direction-communication terminal timed synchronization method and apparatus

A timing synchronization and terminal technology, applied in synchronization devices, wireless communications, electrical components, etc., can solve problems such as no synchronization method proposed, inability to directly apply terminal off-network direct-through scenarios, high requirements for node storage and computing capabilities, and achieve synchronization accuracy effect of satisfaction

Inactive Publication Date: 2016-11-23
POTEVIO INFORMATION TECH
View PDF10 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of the mutual synchronization method include: each node generally needs to store and process the time information of a large number of neighboring nodes, and requires high storage and computing capabilities of the nodes
[0009] At present, no corresponding synchronization method has been proposed for the situation of no base station signal coverage in the TD-LTE-based terminal off-network direct connection scenario
However, due to the above-mentioned problems, the clock synchronization method of the existing self-organizing network cannot be directly applied to the terminal off-network direct connection scenario.

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 direction-communication terminal timed synchronization method and apparatus
  • A direction-communication terminal timed synchronization method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] The core idea of ​​the present invention is: each main control terminal sends timing parameters and timing precision weights through the channels of other main control terminals monitored, and updates the corresponding timing parameters and precision weights of this terminal, so as to realize the scenario of terminal off-network direct connection Timing synchronization in the absence of base station signal coverage.

[0025] figure 1 It is a schematic flow chart of Embodiment 1 of the present invention, such as figure 1 As shown, this embodiment mainly includes:

[0026] Step 101 , each master terminal in the system broadcasts a discovery signal in each discovery signal sending period, and the discovery signal carries the timing ...

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 application discloses a direction-communication terminal timed synchronization method and apparatus. Each monitoring terminal updates a corresponding timing parameter and precision weight value thereof through monitoring surrounding master terminals and using channel sending timing parameters and timing precision weight values of the master terminals monitored. Through the adoption of the method and apparatus of the invention, timed synchronization of a direction-communication terminal can be realized without base station signal coverage in a terminal off-network direction-communication scene. The method and apparatus of the invention are applicable to the off-network direction-communication scene.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a timing synchronization method and device for through terminals. Background technique [0002] Digital communication systems have very strict requirements on clock synchronization, especially in OFDM-based systems, if the timing is not accurate, it will cause serious (inter-symbol and sub-carrier) interference, making communication impossible. In the TD-LTE-based terminal off-net direct digital communication network, the requirement for synchronization is no exception. [0003] At present, in the ad hoc network based on the IEEE 802.11 standard, when the communication nodes communicate, they must not only maintain the signal synchronization during communication, but also effectively manage the clock synchronization during sleep and wake-up state transitions, so as to achieve further energy saving effects . To the ad hoc network that adopts TDMA to insert the way, cloc...

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): H04W56/00
CPCH04W56/001H04W56/0015
Inventor 赵顾良李瑞林
Owner POTEVIO INFORMATION TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap