公开(公告)号：US20140162668A1

公开(公告)日：2014-06-12

申请号：US14097949

申请日：2013-12-05

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jee Hyeon NA ,  Jung Mo MOON ,  Dae Ik KIM ,  Sang Ho LEE ,  Woo Goo PARK

IPC: H04W72/04

CPC classification number: H04W72/121

Abstract: Disclosed is a method and apparatus for scheduling in a cellular-based device-to-device (D2D) communication. The method of scheduling a cellular resource used in a base station for a D2D communication between terminals may include grouping, by a proximity coordinator, a cellular resource of an adjacent base station based on cell information of a base station, managing a resource to be allocated to the terminal and a resource allocated previously to the terminal based on the grouped resource, and allocating the grouped resource to the terminal based on information associated with the resource to be allocated and the previously allocated resource when a request for D2D communication between terminals located in different cells is received.

Abstract translation: 公开了一种用于在基于蜂窝的设备到设备（D2D）通信中进行调度的方法和装置。 在基站中使用的用于终端之间的D2D通信的蜂窝资源的调度方法可以包括基于基站的小区信息来由邻近协调器对相邻基站的蜂窝资源进行分组，管理要分配的资源 基于分组的资源向终端和先前分配给终端的资源，并且当位于位于终端中的终端之间的D2D通信的请求时，基于与要分配的资源相关联的信息和先前分配的资源，将分组的资源分配给终端 收到不同的信元。

公开(公告)号：US20200383074A1

公开(公告)日：2020-12-03

申请号：US16884498

申请日：2020-05-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kap Seok CHANG ,  Young Jo KO ,  Yong Sun KIM ,  Sang Ho LEE

IPC: H04W56/00

Abstract: Disclosed are a method and an apparatus for transmitting and receiving a synchronization signal in a communication system. According to an exemplary embodiment of the present disclosure, a method of transmitting a first synchronization signal, performed by a base station in the communication system, may comprise generating a base sequence; generating a modified sequence by inverting polarity of the base sequence; mapping the base sequence and the modified sequence to a first frequency region having a frequency higher than a center subcarrier and a second frequency region having a frequency lower the center subcarrier, so that the base sequence and the modified sequence are symmetric centering the center subcarrier located at a center frequency of a frequency domain of the synchronization signal; and transmitting the synchronization signal comprising the base sequence and the modified sequence to a terminal. Therefore, performance of the communication system can be improved.

公开(公告)号：US20190098104A1

公开(公告)日：2019-03-28

申请号：US16131172

申请日：2018-09-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sun Me KIM ,  Nam Seok KO ,  Sang Ki KIM ,  Sung Hyuk BYUN ,  Dong Il SEO ,  Jea Hoon YU ,  Tae Whan YOO ,  Seung Hyun YOON ,  Sang Ho LEE

IPC: H04L29/08

Abstract: A network infrastructure system implements data sharing and processing by using a network infrastructure to which an application terminal or application server constituting an application domain is connected in a shared manner, includes a plurality of network infrastructure nodes storing, processing, sharing data, wherein each of the plurality of network infrastructure nodes includes a data processing module including a data transfer function, a data distribution function, a data processing function, and a data sharing function which are provided to at least one of the application terminal and the application server.

公开(公告)号：US20170038454A1

公开(公告)日：2017-02-09

申请号：US15229324

申请日：2016-08-05

Applicant: Electronics and Telecommunications Research Institute

Inventor： Keun Young KIM ,  Yeong Jin KIM ,  Seung Chan BANG ,  Moon Sik LEE ,  Sang Ho LEE ,  Jun Hwan LEE

IPC: G01S3/781 ,  G01S3/801

CPC classification number: G01S3/781 ,  G01S3/801 ,  G01S5/16 ,  G01S5/30

Abstract: Provided is a method for estimating a signal generation position based on signal strength, including: measuring a first signal strength which is a strength of a signal propagated from a generation position of the signal at a first measurement point; measuring a second signal strength which is a strength of the signal propagated from the generation position of the signal at a second measurement point distinguished from the first measurement point; calculating an attenuation constant of a medium to which the signal is propagated from the generation position up to the first measurement point and the second measurement point; and estimating the generation position by using the first signal strength, the second signal strength, and the attenuation constant, wherein the first measurement point, the second measurement point, and the generation position are present on one straight line. This method can be extended to estimate a signal generation point in 2D plane or 3D space.

Abstract translation: 提供了一种用于基于信号强度估计信号生成位置的方法，包括：测量作为在第一测量点处的信号的生成位置传播的信号的强度的第一信号强度; 测量第二信号强度，其是从与第一测量点区分开的第二测量点处的信号的产生位置传播的信号的强度; 计算信号从所述生成位置传播到所述第一测量点和所述第二测量点的介质的衰减常数; 并且通过使用第一信号强度，第二信号强度和衰减常数来估计生成位置，其中第一测量点，第二测量点和生成位置存在于一条直线上。 该方法可以扩展到2D平面或3D空间中的信号生成点。

公开(公告)号：US20160295501A1

公开(公告)日：2016-10-06

申请号：US15083365

申请日：2016-03-29

Applicant: Electronics and Telecommunications Research Institute

Inventor： Young Il CHOI ,  Sang Ho LEE ,  Hyun Joo BAE ,  Yeong Jin KIM

IPC: H04W48/16 ,  H04W48/20 ,  H04W12/04

CPC classification number: H04W48/16 ,  H04W4/021 ,  H04W4/08 ,  H04W4/21 ,  H04W12/06 ,  H04W48/20

Abstract: Disclosed is a method for providing a community service based on proximity, the method including: searching for an access point (AP) provided at a specific place and having a wireless LAN identifier assigned for the event through a wireless terminal of the host, and requesting a connection to a network by inputting a security key; when the request is accepted, generating, by a service platform receiving information about the generation of the community, a community for the event through an application installed in the wireless terminal of the host, and transmitting a community ID specifying the community for the event to the application; transmitting a request for participation in the community for the event to the service platform together with participant information input through the application and the community ID; and when the request for the participation is accepted in the service platform, transmitting a participant ID to the application.

Abstract translation: 公开了一种基于邻近度提供社区服务的方法，所述方法包括：通过主机的无线终端搜索在特定地点提供的接入点（AP）并且具有为事件分配的无线LAN标识符，并请求 通过输入安全密钥到网络的连接; 当所述请求被接受时，由服务平台通过安装在所述主机的无线终端中的应用程序生成通过安装在所述主机的无线终端中的应用的用于所述事件的社区的社区，以及将指定所述事件的社区的社区ID发送到 应用程序; 将通过应用程序输入的参与者信息和社区ID发送到服务平台的参与社区的请求; 并且当在服务平台中接受参与请求时，向参与者发送参与者ID。

公开(公告)号：US20140162643A1

公开(公告)日：2014-06-12

申请号：US14097876

申请日：2013-12-05

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sang Ho LEE ,  Jee Hyeon NA ,  Dae Ik KIM ,  Jung Mo MOON ,  Woo Goo PARK

IPC: H04W4/06 ,  H04W76/02

CPC classification number: H04W4/06 ,  H04W4/80 ,  H04W76/14

Abstract: Disclosed is a method and an apparatus for device-to-device (D2D) multicast communication in a cellular mobile communication system. The method for D2D communication may include transmitting a server designation request message requesting registration as a server terminal to a base station, and transmitting service information using a D2D multicast or broadcast communication scheme based on a radio resource allocated by the base station.

Abstract translation: 公开了一种蜂窝移动通信系统中的设备到设备（D2D）多播通信的方法和装置。 D2D通信方法可以包括向基站发送请求登记为服务器终端的服务器指定请求消息，并且使用基于由基站分配的无线资源的D2D多播或广播通信方式来发送服务信息。