公开(公告)号：US20180146478A1

公开(公告)日：2018-05-24

申请号：US15572736

申请日：2015-10-26

Applicant: LG ELECTRONICS INC. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Hakseong KIM ,  Daeho KANG ,  Saewoong BAHK ,  Seungbeom JEONG ,  Changhee JOO

IPC: H04W72/04 ,  H04W72/12 ,  H04W72/14 ,  H04W4/06 ,  H04W76/14

CPC classification number: H04W72/0453 ,  H04W4/06 ,  H04W4/70 ,  H04W72/005 ,  H04W72/1257 ,  H04W72/14 ,  H04W76/14

Abstract: Disclosed are a method for transferring data in a wireless communication system that supports device-to-device communication, and an apparatus therefor. Specifically, a method for performing, by a device, data transfer in a wireless communication system that supports device-to-device communication, comprises the steps of: broadcasting, at a first sub-carrier, a ready-to-forward (RTF) signal for advertising that the device holds data to transfer; receiving, at a second sub-carrier, a forward-request (FR) signal for requesting transfer of the data from another device; and broadcasting the data after a predetermined time, wherein the first sub-carrier and the second sub-carrier are determined on the basis of sequence numbers of the data, respectively.