Device to device communication method, apparatus and system

A device communication and communication system technology, applied in the field of device-to-device communication methods, devices and systems, capable of solving problems such as occupation, frequency resource interference and conflict of mobile communication systems

Active Publication Date: 2013-08-14
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide a device-to-device communication method, device, and system, which can overcome the existing problem of interference or conflict with frequency resources of a mobile communication system when a synchronization system is used to synchronize proximity discovery and occupy separate frequency resources.

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  • Device to device communication method, apparatus and system
  • Device to device communication method, apparatus and system
  • Device to device communication method, apparatus and system

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Embodiment Construction

[0095] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0096] The device-to-device communication method provided by the embodiment of the present invention can use frequency resources in the mobile communication network to send and receive proximity discovery messages on the basis of traditional mobile communication networks, thereby realizing communication between terminals in the mobile communication network. For D2D communic...

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Abstract

The embodiment of the invention provides a device to device communication method, apparatus and system. The method includes acquiring configuration information nearby discovery sent by a base station, wherein said configuration information includes the signal duration and the transmission delay time of the nearby discovery message; timing downlink of the nearby discovery as a starting time, after the transmission delay time, sending out a nearby discovery message of the signal duration of the nearby discovery message, so a receiving terminal can receive the nearby discovery message in the delay time after the downlink timing of the nearby discovery; wherein the downlink timing of the nearby discovery is a downlink timing of the terminal in a cell. The technical scheme of the embodiment of the invention can realize D2D communication based on the existing mobile communication system, can achieve nearby discovery in the existing mobile communication system frequency spectrum and can realize nearby discovery synchronization by using the timing of the existing communication system.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a device-to-device communication method, device, and system. Background technique [0002] Device to Device (D2D) communication refers to the direct communication between two communication devices. With the development of mobile communication technology, the realization of D2D communication in mobile communication system has become a useful supplement to future mobile communication technology. Applied to a variety of application scenarios, for example, in social network applications, you can use D2D communication to find nearby friends or people with the same interests; in advertising applications, you can check nearby discount information; in location-based services, You can check nearby restaurants, etc. [0003] Wherein, when implementing D2D communication between mobile terminals in a mobile communication network, how to realize the proximity discovery ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/22H04W56/00
CPCH04W8/005H04W76/023H04W72/042H04W72/04H04W76/14H04W72/23
Inventor 张维良王强马洁唐启荣
Owner HUAWEI TECH CO LTD
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