公开(公告)号：KR1020140077648A

公开(公告)日：2014-06-24

申请号：KR1020120146688

申请日：2012-12-14

Applicant: 한국전자통신연구원

Inventor： 조승권 ,  김성경 ,  김형진 ,  윤찬호 ,  정수정 ,  장성철 ,  권동승

IPC: H04B7/24

CPC classification number: H04W4/70 ,  H04W76/14

Abstract: According to an embodiment of the present invention, a method of discovering a counterpart terminal with which direct communications, in which wireless terminals directly communicate with each other without passing through a node of an intermediate stage, is performed in an infrastructure network environment in which communications are implemented via the node of the intermediate stage includes the steps of: broadcasting an identifier packet including an identification address field in which typical identification address of each of wireless terminals is recorded and a service field in which information about each service supported by the wireless terminals is recorded; when a wireless terminal which intends to discover the counterpart wireless terminal for the direct communications receives the identifier packet and the information about the service recorded in the service field of the received identifier packet represents a kind of service identical with the kind desired by the wireless terminal, inquiring of the infrastructure through an infra link which is a communications link with the node of the intermediate stage whether the service type desired by the wireless terminal is supported by the wireless terminal broadcasting the received identifier packet; and when the wireless terminal which intends to discover the counterpart wireless terminal for the direct communications confirms a result of the inquiring through the infra link and the service type desired by the wireless terminal is supported by the wireless terminal broadcasting the received identifier packet, determining the wireless terminal having the typical identification address recorded in the identification address field of the received identifier packet as the counterpart wireless terminal.

Abstract translation: 根据本发明的实施例，一种发现对方终端的方法，其中无线终端直接通信而不经过中间级节点的直接通信在其中通信的基础设施网络环境中执行 经由中间级节点实现的步骤包括以下步骤：广播包括其中记录每个无线终端的典型标识地址的标识地址字段的标识符分组和其中由无线终端支持的关于每个服务的信息的服务字段 被记录; 当想要发现用于直接通信的对方无线终端的无线终端接收到标识符分组，并且关于接收到的标识符分组的服务字段中记录的关于服务的信息表示与无线终端所期望的种类相同的服务 通过作为与中间节点的通信链路的下行链路询问基础设施，无线终端是否支持无线终端广播所接收的标识符分组; 并且当要发现用于直接通信的对方无线终端的无线终端确认通过下行链路查询的结果，并且由无线终端广播所接收的标识符分组支持无线终端所期望的服务类型时，确定 具有记录在接收的标识符分组的标识地址字段中的典型标识地址作为对方无线终端的无线终端。

公开(公告)号：KR1020140035798A

公开(公告)日：2014-03-24

申请号：KR1020130071819

申请日：2013-06-21

Applicant: 한국전자통신연구원 ,  조선대학교산학협력단

Inventor： 김원익 ,  김석기 ,  윤미영 ,  김성경 ,  이현 ,  윤철식 ,  장성철 ,  신석주

IPC: H04W72/10

CPC classification number: H04W72/10 ,  H04W74/08

Abstract: Disclosed is an access method for a terminal having a high priority. A base station allocates a ranging code dedicated for the terminal having the high priority and tries to conduct initial ranging by using the allocated dedicated ranging code. The base station allocates resources in order for the terminal having the high priority to transmit a ranging request message. The terminal having the high priority transmits the ranging request message to the base station by using the allocated resource. [Reference numerals] (AA) Base station; (BB) Terminal; (S210) Recognize priority access operation situation; (S220) Allocate a CDMA code for a terminal having the high priority(= X

Abstract translation: 公开了一种具有高优先级的终端的接入方法。 基站分配专用于具有高优先级的终端的测距码，并尝试通过使用分配的专用测距码进行初始测距。 基站为了使具有高优先级的终端发送测距请求消息而分配资源。 具有高优先级的终端通过使用所分配的资源向基站发送测距请求消息。 （标号）（AA）基站; （BB）码头; （S210）识别优先接入操作情况; （S220）为具有高优先级的终端（= X << 255）分配CDMA码; （S240）计算高优先级终端的CDMA码; （S250）具有高优先级的终端尝试初始测距; （S260）专用CDMA码; （S270）检测专用CDMA码; （S290）为具有高优先级的终端的RNG-REQ传输分配资源

公开(公告)号：KR1020140034094A

公开(公告)日：2014-03-19

申请号：KR1020130108501

申请日：2013-09-10

Applicant: 한국전자통신연구원

Inventor： 윤찬호 ,  김형진 ,  조승권 ,  김성경 ,  정수정 ,  장성철

IPC: H04W48/16 ,  H04J11/00

CPC classification number: H04W8/14 ,  H04L5/0053 ,  H04W4/70 ,  H04W8/005 ,  H04W48/16

Abstract: A device transmits a discovery signal including the device′s identification information at an empty slot found in the multiple discovered slots in a discovered domain. The discovery signal includes two OFDM symbols. One of the two OFDM symbols includes one or more tones, and displays the device′s identification information to the sub-carrier location of at least one tone. [Reference numerals] (810) Signal generating unit; (820) Signal transmitting unit; (830) Signal receiving unit

Abstract translation: 设备在发现的域中的多个发现的时隙中找到的空槽处发送包括设备的标识信息的发现信号。 发现信号包括两个OFDM符号。 两个OFDM符号中的一个包括一个或多个音调，并且将设备的识别信息显示到至少一个音调的子载波位置。 （附图标记）（810）信号生成单元; （820）信号发送单元; （830）信号接收单元

公开(公告)号：KR1020140018792A

公开(公告)日：2014-02-13

申请号：KR1020130080591

申请日：2013-07-09

Applicant: 한국전자통신연구원

Inventor： 장성철 ,  윤미영 ,  김석기 ,  김원익 ,  이현 ,  김성경 ,  윤철식

IPC: H04L29/02

CPC classification number: H04W76/14

Abstract: Disclosed is a signaling method for a terminal that performs direct communication between terminals. A transmitting terminal transmits a link establishment request message for establishing a link to a receiving terminal, and the receiving terminal transmits a link establishment response message responding to this message to the transmitting terminal. The link establishment request message includes a field indicating a flow to use if the receiving terminal acquires a token. [Reference numerals] (AA) Transmitting terminal; (BB) Receiving terminal; (CC) Direct communication

Abstract translation: 公开了一种在终端之间执行直接通信的终端的信令方法。 发送终端发送用于建立到接收终端的链路的链路建立请求消息，并且接收终端向发送终端发送响应该消息的链路建立响应消息。 链接建立请求消息包括指示如果接收终端获取令牌时要使用的流的字段。 （附图标记）（AA）发送终端; （BB）接收终端; （CC）直接沟通

公开(公告)号：KR1020140008257A

公开(公告)日：2014-01-21

申请号：KR1020130080595

申请日：2013-07-09

Applicant: 한국전자통신연구원

Inventor： 김석기 ,  장성철 ,  윤미영 ,  김원익 ,  이현 ,  김성경 ,  윤철식

IPC: H04B7/24

CPC classification number: H04W72/044 ,  H04W76/14 ,  H04W92/18

Abstract: Provided is a permutated channel structure based on a block structure in talk-around direct communication. A dedicated subchannel interferes with only one adjacent dedicated subchannel, even with a large synchronization error, by permuting the dedicated subchannels by cyclic shifts, whereby a diversity gain can be maintained and interference between adjacent channels can be minimized. [Reference numerals] (AA) Subframe 2 temporary assignment; (BB) Subframe 2 cyclic shift; (CC) Subframe 3 cyclic shift; (DD) 3 block; (EE) 6 block

Abstract translation: 提供了一种基于在谈话直接通信中的块结构的排列的信道结构。 专用子信道通过循环移位来排列专用子信道，即使具有大的同步误差也仅干扰一个相邻的专用子信道，从而可以保持分集增益，并且可以最小化相邻信道之间的干扰。 （附图标记）（AA）子帧2临时指配; （BB）子帧2循环移位; （CC）子帧3循环移位; （DD）3块; （EE）6块

公开(公告)号：KR1020130102013A

公开(公告)日：2013-09-16

申请号：KR1020130023434

申请日：2013-03-05

Applicant: 한국전자통신연구원

Inventor： 김은경 ,  김원익 ,  김성경 ,  장성철 ,  김석기 ,  윤미영 ,  이현 ,  윤철식 ,  임광재

IPC: H04B7/14 ,  H04W88/08 ,  H04W88/04

CPC classification number: H04L41/0654 ,  H04L41/0659 ,  H04W24/04 ,  H04W88/04

Abstract: PURPOSE: A multimode apparatus capable of keeping providing a communication service and a communication method thereof are provided to enable a continuous communication service even when a base station is damaged. CONSTITUTION: A multimode apparatus comprises a radio frequency (RF) module and a processor (520) connected to the RF module. The processor, when being selected as an apparatus functioning as a relay because of a base station having a problem in a backhaul link, controls the multimode apparatus to set a first base station and a first relay link. The processor, when receiving a unlink request to terminate the first relay link from the first base station, controls the multimode apparatus to set a second base station and a second relay link or to configure and operate a private network or an independent network. [Reference numerals] (520) Processor; (540) Memory; (560) RF module

Abstract translation: 目的：提供能够保持提供通信服务的多模式设备及其通信方法，以便即使当基站被损坏时也能够进行连续的通信服务。 构成：多模设备包括射频（RF）模块和连接到RF模块的处理器（520）。 当由于基站在回程链路中具有问题而被选择为用作中继器的装置时，处理器控制多模设备来设置第一基站和第一中继链路。 当接收到从第一基站终止第一中继链路的解除连接请求时，处理器控制多模设备设置第二基站和第二中继链路，或者配置和操作专用网络或独立网络。 （附图标记）（520）处理器; （540）内存; （560）RF模块

公开(公告)号：KR1020120129815A

公开(公告)日：2012-11-28

申请号：KR1020120052940

申请日：2012-05-18

Applicant: 한국전자통신연구원 ,  한국항공대학교산학협력단

Inventor： 장성철 ,  김은경 ,  이현 ,  김성경 ,  김원익 ,  윤철식 ,  임광재 ,  정영호 ,  윤미영 ,  최지훈 ,  김석기

IPC: H04L27/26 ,  H04B7/24

CPC classification number: H04W56/002 ,  H04W56/0035

Abstract: PURPOSE: A method for performing direct communications between terminals and the terminal supporting the same are provided to obtain synchronization between the terminals performing direct communications by improving a synchronization channel structure. CONSTITUTION: Direct communications is performed with one or more second terminals using allocated resources for the direct communications between terminals. The resources include a synchronous channel which is used for frequency synchronization and time synchronization between the terminals. The synchronization channel includes a synchronization channel preamble which is used for either preamble detection, time offset estimation, frequency offset estimation, or channel estimation. The synchronization channel preamble is either a first sequence repeating a basic pattern or a second sequence combining the basic pattern with a pattern multiplying the basic pattern by (-1). One or more OFDM(orthogonal frequency division multiplexing) symbols are used for transmitting the synchronization channel preamble.

Abstract translation: 目的：提供终端与支持终端之间的直接通信的方法，以通过改善同步信道结构来实现直接通信的终端之间的同步。 构成：使用分配的资源对一个或多个第二终端进行直接通信，用于终端之间的直接通信。 该资源包括用于频率同步和终端之间的时间同步的同步信道。 同步信道包括用于前导码检测，时间偏移估计，频率偏移估计或信道估计的同步信道前同步码。 同步信道前导码是重复基本模式的第一序列或将基本模式与将基本模式相乘的模式（-1）组合的第二序列。 一个或多个OFDM（正交频分复用）符号用于发送同步信道前导码。

公开(公告)号：KR1020120124358A

公开(公告)日：2012-11-13

申请号：KR1020120045400

申请日：2012-04-30

Applicant: 한국전자통신연구원

Inventor： 김은경 ,  김성경 ,  장성철 ,  이현 ,  윤철식 ,  임광재

IPC: H04W24/04 ,  H04W76/02 ,  H04B7/26

CPC classification number: H04W76/18 ,  H04W24/04 ,  H04W28/02 ,  H04W72/0406

Abstract: PURPOSE: A communication method of a base station and a terminal are provided to support communication between the base station and the terminal when the base station is not connected with an upper network by damage of a backbone network. CONSTITUTION: A base station transmits REQ(request) message to a terminal 1(S410). The terminal 1 transmits RSP(response) message(S420). The base station transmits the request message for communications setting request with the terminal 1 and the terminal 2 for communicating with the terminal 1(S430). The terminal 2 transmits the response message to the base station(S440). [Reference numerals] (AA) Back hole link; (BB) Local transmission

Abstract translation: 目的：提供一种基站和终端的通信方法，用于支持当基站由于骨干网络的损坏而不与上层网络连接时，基站与终端之间的通信。 构成：基站向终端1发送REQ（请求）消息（S410）。 终端1发送RSP（响应）消息（S420）。 基站与终端1和终端2发送用于通信设定请求的请求消息，用于与终端1通信（S430）。 终端2向基站发送响应消息（S440）。 （附图标记）（AA）后孔连杆; （BB）本地传输

公开(公告)号：KR1020120113673A

公开(公告)日：2012-10-15

申请号：KR1020120034991

申请日：2012-04-04

Applicant: 한국전자통신연구원

Inventor： 김은경 ,  김성경 ,  장성철 ,  이현 ,  윤철식 ,  김원익 ,  윤미영 ,  임광재

IPC: H04W36/08 ,  H04W36/06 ,  H04W48/08

CPC classification number: H04W36/0033 ,  H04W36/06 ,  H04W36/08 ,  H04W48/08

Abstract: PURPOSE: A communication method of a base station and a communication method of a mobile terminal are provided to supply a communication service through an adjacent base station or a relay station in case a backhaul link of a base station is damaged. CONSTITUTION: A first base station(110) transmits information about a terminal(200) to a second base station(120)(S510). The first base station transmits information about transmitting the information to the second base station to the terminal(S530). The information includes context information. The first base station transmits a list of the second base station to the terminal. The list of the second base station is arranged in order of priority. [Reference numerals] (AA) Backhaul link; (BB, CC) Information transmission

Abstract translation: 目的：提供基站的通信方法和移动终端的通信方法，以便在基站的回程链路被损坏的情况下通过相邻基站或中继站提供通信服务。 构成：第一基站（110）将关于终端（200）的信息发送到第二基站（120）（S510）。 第一基站向终端发送关于将信息发送到第二基站的信息（S530）。 信息包括上下文信息。 第一基站向终端发送第二基站的列表。 第二基站的列表按优先级排列。 （附图标记）（AA）回程链路; （BB，CC）信息传输

公开(公告)号：KR1020120074242A

公开(公告)日：2012-07-05

申请号：KR1020110142081

申请日：2011-12-26

Applicant: 한국전자통신연구원

Inventor： 김성경 ,  김은경 ,  장성철 ,  이현 ,  윤철식

IPC: H04W84/18 ,  H04W88/04

CPC classification number: Y02D70/00 ,  H04W84/18 ,  H04W52/0219 ,  H04W88/04

Abstract: PURPOSE: A cell configuration method using a multi-function terminal is provided to construct cells by enabling a terminal to conduct a role of a base station in a communication system. CONSTITUTION: A terminal(110) searches bands. The terminal determines states of the bands. In case the band is an idle state, the terminal transmits a downlink frame including preamble. Other terminals(111) located within one-hop from the terminal conducts a network entry process with the terminal. The terminal optimizes transmission power. The idle band is determined when RSSI(Received Signal Strength Indication) does not over threshold values.

Abstract translation: 目的：提供一种使用多功能终端的小区配置方法，通过使终端能够在通信系统中进行基站的作用来构造小区。 条款：终端（110）搜索乐队。 终端确定频带的状态。 在频带为空闲状态的情况下，终端发送包括前同步码的下行链路帧。 位于与终端一跳的其他终端（111）与终端进行网络进入处理。 终端优化传输功率。 当RSSI（接收信号强度指示）不超过阈值时，确定空闲频带。