Invention Application
US20150373656A1 METHOD FOR OBTAINING SYNCHRONIZATION BETWEEN DEVICES IN WIRELESS ACCESS SYSTEM SUPPORTING DEVICE-TO-DEVICE COMMUNICATION, AND DEVICE SUPPORTING SAME
审中-公开
用于获得支持设备到设备通信的无线接入系统中的设备之间的同步的方法，以及支持其的设备
- Patent Title: METHOD FOR OBTAINING SYNCHRONIZATION BETWEEN DEVICES IN WIRELESS ACCESS SYSTEM SUPPORTING DEVICE-TO-DEVICE COMMUNICATION, AND DEVICE SUPPORTING SAME
- Patent Title (中): 用于获得支持设备到设备通信的无线接入系统中的设备之间的同步的方法，以及支持其的设备
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Application No.: US14764111Application Date: 2014-01-28
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Publication No.: US20150373656A1Publication Date: 2015-12-24
- Inventor: Jinmin KIM , Kitae KIM , Hyunsoo KO , Jaehoon CHUNG
- Applicant: LG ELECTRONICS INC.
- Applicant Address: KR Seoul
- Assignee: LG ELECTRONICS INC.
- Current Assignee: LG ELECTRONICS INC.
- Current Assignee Address: KR Seoul
- International Application: PCT/KR2014/000785 WO 20140128
- Main IPC: H04W56/00
- IPC: H04W56/00 ; H04W74/08 ; H04W76/02
Abstract:
The present invention, which is used in a wireless access system supporting device-to-device (D2D) communication, defines a new random access channel region and provides methods for obtaining synchronization between D2D devices in the new random access channel region, and devices supporting same. The method for obtaining synchronization between devices in a wireless access system supporting device-to-device (D2D) communication, according to one embodiment of the present invention, may comprise: a step in which a first terminal receives a D2D preamble from a second terminal via a D2D random access channel (RACH) region in an RACH region; a step in which the first terminal obtains synchronization with the second terminal by using the D2D preamble; and a step in which the first terminal performs D2D communication with the second terminal. The RACH region may comprise a legacy RACH region to which a legacy preamble for performing an RACH procedure with a base station is transmitted, and the D2D RACH region.
Public/Granted literature
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