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Method for transmitting device-to-device (D2D) signal in wireless communication system and device for same

專利號(hào)
US10080232B2
公開日期
2018-09-18
申請人
LG ELECTRONICS INC.（KR Seoul）
發(fā)明人
Seungmin Lee; Hanbyul Seo; Jihyun Lee; Hakseong Kim; Hyukjin Chae
IPC分類
H04W72/12; H04W76/14; H04B7/26; H04W56/00; H04W72/04; H04W8/00; H04W48/16; H04W92/18
技術(shù)領(lǐng)域
d2dss,d2d,subframe,ue,downlink,in,channel,equipment,uplink,user
地域： Seoul

摘要

The present invention relates to a method and a device for transmitting, by a first terminal, a device-to-device (D2D) signal in a wireless communication system. Particularly, the method comprises the steps of: performing D2D transmission scheduling for a device-to-device synchronization signal (D2DSS) and a device-to-device channel (D2DCH); and transmitting a D2D signal on a first D2D subframe among a plurality of D2D subframes, wherein the first D2D subframe is a D2D subframe in which a D2D synchronization signal transmission for the first terminal is configured among D2D subframes configured to enable a D2D synchronization signal transmission, and the D2D signal drops the D2DCH when the D2DSS and the D2DCH are simultaneously scheduled on the first D2D subframe.

說明書

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is the National Stage filing under 35 U.S.C. 371 of International Application No. PCT/KR2015/004961, filed on May 18, 2015, which claims the benefit of U.S. Provisional Application No. 61/994,984, filed on May 18, 2014, the contents of which are all hereby incorporated by reference herein in their entirety.

TECHNICAL FIELD

The present invention relates to a wireless communication system, and more particularly, to a method for transmitting a D2D (device-to-device) signal in a wireless communication system and device for the same.

BACKGROUND ART

A 3rd generation partnership project long term evolution (3GPP LTE) (hereinafter, referred to as ‘LTE’) communication system which is an example of a wireless communication system to which the present invention can be applied will be described in brief.

FIG. 1 is a diagram illustrating a network structure of an Evolved Universal Mobile Telecommunications System (E-UMTS) which is an example of a wireless communication system. The E-UMTS is an evolved version of the conventional UMTS, and its basic standardization is in progress under the 3rd Generation Partnership Project (3GPP). The E-UMTS may be referred to as a Long Term Evolution (LTE) system. Details of the technical specifications of the UMTS and E-UMTS may be understood with reference to Release 7 and Release 8 of “3rd Generation Partnership Project; Technical Specification Group Radio Access Network”.

權(quán)利要求

1
What is claimed is:1. A method of transmitting a D2D (device-to-device) signal of a first UE (user equipment) in a wireless communication system, the method comprising:performing D2D transmission scheduling for a D2DSS (device-to-device synchronization signal) and a D2DCH (device-to-device channel) signal, wherein the D2DCH signal contains scheduling assignment and data; anddropping the data of the D2DCH signal in a first D2D subframe of a plurality of subframes in which D2DSS transmission is capable for the first UE or a second UE,wherein the first D2D subframe is a D2D subframe configured only for transmission of a D2DSS of the second UE among the plurality of subframes in which the D2DSS transmission is capable for the first UE or the second UE,wherein a resource region for the D2DSS transmission of the second UE in the first D2D subframe includes a D2DSS transmission frequency region and a guard region for the D2DSS transmission, andwherein a resource region for a D2DCH signal transmission in the first D2D subframe is not overlapped with the D2DSS transmission frequency region but overlapped only with the guard region for the D2DSS transmission.2. A first UE (user equipment) for transmitting a D2D (device-to-device) signal in a wireless communication system, the UE comprising:a radio frequency unit; anda processor,wherein the processor is configured to:perform D2D transmission scheduling for a D2DSS (device-to-device synchronization signal) and a D2DCH (device-to-device channel) signal, wherein the D2DCH signal contains scheduling assignment and data; anddrop the data of the D2DCH signal in a first D2D subframe of a plurality of subframes in which D2DSS transmission is capable for the first UE or a second UE,wherein the first D2D subframe is a D2D subframe configured only for transmission of a D2DSS of the second UE among the plurality of subframes in which the D2DSS transmission is capable for the first UE or the second UE,wherein a resource region for the D2DSS transmission of the second UE in the first D2D subframe includes a D2DSS transmission frequency region and a guard region for the D2DSS transmission, andwherein a resource region for a D2DCH signal transmission in the first D2D subframe is not overlapped with the D2DSS transmission frequency region but overlapped only with the guard region for the D2DSS transmission.
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