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Method for handling channel conflict in direct mode and terminal

A technology of channel conflict and direct mode, which is applied in wireless communication, connection management, wireless communication services, etc., and can solve problems affecting user experience, channel conflict, and terminal failure to receive business data correctly.

Active Publication Date: 2017-03-29
HYTERA COMM CORP
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In practical applications, time-frequency resources for direct communication are limited. Since there is no base station to schedule time-frequency resources, when there are many terminals in a range, different terminals may choose the same time-frequency resources for communication. Conflicts cause the terminal to fail to receive service data correctly and affect user experience

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  • Method for handling channel conflict in direct mode and terminal
  • Method for handling channel conflict in direct mode and terminal
  • Method for handling channel conflict in direct mode and terminal

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Embodiment Construction

[0076] 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 of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0077] see figure 1 , an embodiment of the channel conflict processing method in the direct mode in the embodiment of the present invention includes:

[0078] 101. The first terminal receives the first SCI sent by the second terminal, and the second SCI sent by the third terminal;

[0079] In this embodiment, in the DMO mode, the second terminal sends the first SCI when sending service data, the third terminal sends the second SCI when sending service data,...

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Abstract

The embodiments of the invention disclose a method for handling a channel conflict in a direct mode and a terminal. Correct transmission of service data can be ensured, and the user experience can be improved. The method comprises the following steps: a first terminal receives a first SCI sent by a second terminal and a second SCI sent by a third terminal; the first terminal detects whether the second terminal and the third terminal have a channel conflict according to the first SCI and the second SCI; and if the second terminal and the third terminal have a channel conflict, the first terminal generates a channel conflict message, and sends the channel conflict message so the second terminal and the third terminal can resend service data according to the channel conflict message. The embodiments of the invention further disclose a terminal. According to the embodiments of the invention, correct transmission of service data can be ensured, and the user experience can be improved.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a channel conflict processing method and a terminal in a direct mode. Background technique [0002] In a digital trunking system, Direct Mode Operation (DMO) refers to a communication technology that directly communicates between terminals without cellular network coverage. [0003] The current Device-to-Device (D2D) standard of the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) stipulates that in the DMO, the terminal can randomly select time-frequency resources to send information. Because the broadband trunking DMO technology is not yet mature, the processing technology of channel conflict in DMO mode is still in the research stage. [0004] In practical applications, time-frequency resources for direct communication are limited. Since there is no base station to schedule time-frequency resources, when there are many terminals in a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/00H04W72/12H04W74/08H04W72/54
CPCH04W74/0841H04W72/542H04W72/12H04W74/0858H04W76/14H04W4/06H04W72/51H04W72/30H04W74/002H04L5/0007H04L67/1074H04W72/0446H04W74/0816
Inventor 鲁志兵
Owner HYTERA COMM CORP
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