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Synchronization source determination method, device, terminal and medium based on d2d communication technology

A communication technology and synchronization source technology, applied to terminals and media, a synchronization source determination method based on D2D communication technology, and in the field of devices, can solve problems such as excessive moving speed, low power, and synchronization failure, and achieve the effect of ensuring stability

Active Publication Date: 2021-07-09
南京中科晶上通信技术有限公司
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Problems solved by technology

This method does not screen user terminals outside the coverage area of ​​the cellular network, so there may be subsequent synchronization failures due to low power of the user terminals outside the coverage area of ​​the cellular network, or excessive movement speed of user terminals outside the coverage area of ​​the cellular network. Quickly lead to the problem of instability in the subsequent synchronization process

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  • Synchronization source determination method, device, terminal and medium based on d2d communication technology
  • Synchronization source determination method, device, terminal and medium based on d2d communication technology
  • Synchronization source determination method, device, terminal and medium based on d2d communication technology

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Embodiment Construction

[0023] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0024] It should be noted that although the functional modules are divided in the schematic diagram of the device, and the logical sequence is shown in the flowchart, in some cases, it can be executed in a different order than the module division in the device or the flowchart in the flowchart. steps shown or described.

[0025] In this application, the D2D communication technology refers to a communication mode in which two peer user nodes communicate directly. In a distributed network composed of D2D communication users, each user node can send and receive signals, and has the function ...

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Abstract

The present application provides a synchronization source determination method, device, terminal and storage medium based on D2D communication technology. The method includes: determining whether there is a synchronization source in the coverage area of ​​the cellular network based on multiple broadcast signals obtained by the current user terminal; if there is no synchronization source in the coverage area of ​​the cellular network, determining the coverage area of ​​the cellular network based on multiple broadcast signals Multiple candidate user terminals corresponding to the current user terminal and synchronization parameters corresponding to multiple candidate user terminals, the synchronization parameters corresponding to any candidate user terminal include at least one item of mobile state information, battery information, and the number of surrounding user terminals ; Perform sorting processing on multiple candidate user terminals; determine at least one synchronization source among the multiple candidate user terminals based on the sorting processing results. The embodiment of the present application solves the problem of poor synchronization processing efficiency existing in the prior art through synchronization parameters.

Description

technical field [0001] The present application relates to the field of communication technology, and in particular to a method, device, terminal and medium for determining a synchronization source based on D2D communication technology. Background technique [0002] D2D (Device to Device) communication is a technology that allows a user equipment (User Equipment, UE for short) to directly communicate with neighboring UEs via a licensed or unlicensed frequency band under the control of a wireless communication system. D2D communication mainly includes three application scenarios, and these three application scenarios are: 1) the two UEs performing D2D communication are within the coverage of the cellular network; 2) the two UEs performing D2D communication are partially within the coverage of the cellular network 3) The two UEs performing D2D communication are not within the coverage of the cellular network. In the third application scenario, the synchronization source genera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/70H04W56/00
CPCH04W56/0015H04W4/70
Inventor 杨海峰施渊籍田霖胡金龙石晶林
Owner 南京中科晶上通信技术有限公司
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