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Method for sending discovery signal in terminal direct communication, communication terminal and system

A technology for discovering signals and communication terminals, applied in the field of communication terminals and systems, can solve problems such as waste of communication resources, and achieve the effects of avoiding waste, speeding up the discovery process, and saving electricity

Active Publication Date: 2018-01-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method for sending a discovery signal in direct terminal communication, a communication terminal and a system, and solves the problem of waste of communication resources caused by the communication terminal continuously sending D2D discovery signals on available resources in the current direct terminal communication.

Method used

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  • Method for sending discovery signal in terminal direct communication, communication terminal and system
  • Method for sending discovery signal in terminal direct communication, communication terminal and system
  • Method for sending discovery signal in terminal direct communication, communication terminal and system

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Embodiment Construction

[0027] In the following, the present invention will be further explained and explained by means of specific embodiments in combination with the drawings.

[0028] The communication parameters mentioned in the following embodiments of the present invention refer to the communication parameters used by network-side devices, such as base stations, etc., when communicating with a communication terminal such as sending and receiving paging signals, and not when two communication terminals perform D2D communication. Parameters such as connection options used; the source terminal in the following refers to the communication terminal provided by the present invention, and other communication terminals may be conventional communication terminals or communication terminals supporting D2D communication or communication terminals provided by the present invention.

[0029] figure 1 Is a schematic diagram of a method for sending a discovery signal in D2D communication according to an embodiment ...

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Abstract

A discovery signal sending method, a communication terminal and a system in device to device communication. The discovery signal sending method in device to device communication comprises: a source terminal obtaining a communication parameter in communication between a network side device and another communication terminal; and the source terminal sending a discovery signal according to the communication parameter. In a preceding scheme, the source terminal, at a stage for sending the discovery signal in the device to device communication, obtains the communication parameter in the communication between the network side device and another communication terminal, and sends the discovery signal according to the communication parameter only when the network side device sends a communication signal to another communication terminal, avoiding a communication resource waste and accelerating a discovery process of the device to device communication while ensuring that another communication terminal can receive the discovery signal.

Description

Technical field [0001] The present invention relates to the field of communication, in particular to a method, communication terminal and system for sending a discovery signal in terminal direct communication. Background technique [0002] With the rapid development of smart terminals, users have higher and higher requirements for terminal applications and communication rates. In the current LTE (Long Term Evolution) communication system, two communication terminals must pass eNB (evolution Node B, Evolved Node B) and core network equipment can communicate; in order to solve this problem, those skilled in the art provide a D2D (Device to Device, terminal direct) communication technology, this communication technology makes two communication terminals It can communicate without going through the core network equipment. [0003] D2D communication technology includes two parts: D2D discovery (D2D Discovery) process and D2D communication (D2DCommunication) process; D2D discovery refer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16H04W52/02
CPCH04W8/005H04W28/06H04W28/18H04W68/02H04W92/18
Inventor 罗宇民谢峰陈琳马书宇黄莹刘玉兰
Owner ZTE CORP
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