公开(公告)号：KR1020130065002A

公开(公告)日：2013-06-19

申请号：KR1020110131669

申请日：2011-12-09

Applicant: 한국전자통신연구원

Inventor： 양미정 ,  임순용 ,  박애순

IPC: H04B7/005

CPC classification number: H04W72/042 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025 ,  H04W72/044 ,  H04W76/14

Abstract: PURPOSE: A direct communication control method is provided to manage D2D(Device to Device) terminals by assigning uplink or downlink resources by considering cellular resources. CONSTITUTION: A control device assigns resources for direct communication between the terminals(S201). The control device assigns uplink or downlink resources of a mobile communication system. The control device assigns an RNTI(Radio Network Temporary Identifier) for D2D communication. The control device transmits an RRC connection reconfiguration message to the D2D terminals by adding the RNTI for the D2D communication to the RRC connection reconfiguration message. A first and a second terminal(210,220) receive data for cellular communication according to the scheduling of a base station(S203). The first and the second terminal discontinue data transmission. The second terminal converts a reception mode of a receiver into OFDMA(Orthogonal Frequency Division Multiple Access)(S209). [Reference numerals] (100) Base station; (210) First terminal; (220) Second terminal; (S205,S209) Reception mode conversion

Abstract translation: 目的：提供直接通信控制方法，通过考虑蜂窝资源分配上行链路或下行链路资源来管理D2D（设备到设备）终端。 构成：控制装置为终端之间的直接通信分配资源（S201）。 控制装置分配移动通信系统的上行链路或下行链路资源。 控制设备为D2D通信分配RNTI（无线网络临时标识符）。 控制装置通过将用于D2D通信的RNTI与RRC连接重配置消息相加来向D2D终端发送RRC连接重配置消息。 第一和第二终端（210,220）根据基站的调度接收用于蜂窝通信的数据（S203）。 第一和第二终端中断数据传输。 第二终端将接收机的接收模式转换为OFDMA（正交频分多址）（S209）。 （附图标记）（100）基站; （210）第一个终端; （220）第二终端; （S205，S209）接收模式转换

公开(公告)号：KR1020130063633A

公开(公告)日：2013-06-17

申请号：KR1020110130083

申请日：2011-12-07

Applicant: 한국전자통신연구원 ,  성균관대학교산학협력단

Inventor： 정광렬 ,  양미정 ,  박애순 ,  정민영 ,  배성재 ,  구자헌

IPC: H04W88/06 ,  H04L27/26 ,  H04W92/18

CPC classification number: H04W88/04 ,  H04W76/14

Abstract: PURPOSE: A transmission and reception method for direct communication between the terminals is provided to directly support direct communication between the terminals in a mobile communication system. CONSTITUTION: A first switching unit(410) determines the application of DFT(Discrete Fourier Transform) according to a transmission method selected based on information for selecting a transmission method. A second switching unit(420) applies the P/S(Parallel-to-Serial) of a frequency surface or the P/S of a time surface according to the selected transmission method. The first switching unit controls the application of DFT for a modulation symbol outputted from a modulation symbol mapping unit. The second switching unit applies the P/S of the frequency surface of the P/S of a time surface to the output of a CP(Cyclic Prefix) adding unit. [Reference numerals] (210) Demodulation symbol mapping unit; (211) DFT unit; (220) Subcarrier mapping unit; (230) IFFT unit; (240) CP addition unit; (251) Frequency on-plane P/S unit; (252) Time on-plane P/S unit; (260) DAC unit; (270) RF transmission unit; (410) First switching unit; (420) Second switching unit; (AA) Transmission data; (BB,EE) General signal; (CC,FF) D2D signal; (DD) SC-FDMA/OFDMA transmission signal

Abstract translation: 目的：提供用于终端之间的直接通信的发送和接收方法，以直接支持移动通信系统中终端之间的直接通信。 构成：第一切换单元（410）根据基于用于选择发送方法的信息选择的发送方法来确定DFT（离散傅立叶变换）的应用。 第二切换单元（420）根据所选择的传输方式应用频率表面的P / S（并行到串行）或时间表面的P / S。 第一切换单元控制从调制符号映射单元输出的调制符号的DFT的应用。 第二开关单元将时间表面的P / S的频率表面的P / S施加到CP（循环前缀）添加单元的输出。 （附图标记）（210）解调符号映射单元; （211）DFT单位; （220）子载波映射单元; （230）IFFT单位; （240）CP添加单元; （251）平面P / S单位; （252）时间平面P / S单位; （260）DAC单元; （270）RF传输单元; （410）第一开关单元; （420）第二开关单元; （AA）传输数据; （BB，EE）一般信号; （CC，FF）D2D信号; （DD）SC-FDMA / OFDMA传输信号

公开(公告)号：KR101199124B1

公开(公告)日：2012-11-09

申请号：KR1020090124386

申请日：2009-12-15

Applicant: 한국전자통신연구원

Inventor： 황유선 ,  천경열 ,  박애순

IPC: H04B7/26 ,  H04L27/26

Abstract: 본 발명은 캐리어 어그리게이션 환경에서 호를 설정하는 장치를 제공한다. 캐리어 어그리게이션의 특성을 이용하여 복수의 캐리어를 이용하여 효율적으로 호를 설정할 수 있다.
본 발명은 복수의 캐리어를 병합하여 사용하는 단말기에 있어서, 상기 단말기가 이용 가능한 캐리어의 개수에 대한 정보를 기지국으로 전송하는 전송부, 상기 이용 가능한 캐리어의 개수에 대한 정보에 기반하여 결정된, 상기 단말기에 대하여 할당된 캐리어의 개수에 대한 정보를 상기 기지국으로부터 수신하는 수신부, 상기 할당된 캐리어의 개수에 대한 정보에 기반하여 상기 기지국에 대한 베어러(bearer)를 설정하는 설정부를 포함하는 단말기를 제공한다.
캐리어 병합, 캐리어 어그리게이션, 임의 접속, 시스템 정보

公开(公告)号：KR1020120070690A

公开(公告)日：2012-07-02

申请号：KR1020100132113

申请日：2010-12-22

Applicant: 한국전자통신연구원

Inventor： 양미정 ,  임순용 ,  박애순

IPC: H04W74/08 ,  H04W28/08

CPC classification number: H04W74/006 ,  H04W4/70 ,  H04W28/0205 ,  H04W28/0215 ,  H04W74/08

Abstract: PURPOSE: An overload controlling method and an device thereof are provided to reflect an overload condition of a network to a random access process of an MTC device in a 3GPP LTA-advanced system. CONSTITUTION: A terminal transmits a random access preamble(MSG1)(S203). A base station includes an OI(Overload Indicator) in a MAC(Medium Access Control) sub header within a random access response message(MSG2)(S204). An MTC(Machine Type Communication) device examines whether the random access response message includes the OI(S210,S211). The MTC device transmits the random access preamble(S220).

Abstract translation: 目的：提供一种过载控制方法及其装置，以将网络的过载状况反映到3GPP LTA高级系统中的MTC设备的随机接入过程。 构成：终端发送随机接入前同步码（MSG1）（S203）。 基站包括随机接入响应消息（MSG2）内的MAC（媒体接入控制）子报头中的OI（过载指示符）（S204）。 MTC（机器类型通信）设备检查随机接入响应消息是否包括OI（S210，S211）。 MTC设备发送随机接入前导码（S220）。

公开(公告)号：KR101136135B1

公开(公告)日：2012-04-17

申请号：KR1020080116307

申请日：2008-11-21

Applicant: 한국전자통신연구원

Inventor： 임순용 ,  박애순

IPC: H04B7/26

CPC classification number: H04W36/08 ,  H04W36/28 ,  H04W36/30

Abstract: A method and apparatus for handover between base stations in a carrier aggregation environment is provided. In the carrier aggregation environment in which a mobile terminal and base stations use a plurality of carrier frequency bands to transmit and receive data, a source base station analyzes the content of measurement report for each carrier component received from the mobile terminal and determines whether to perform handover of each carrier component, and manages handover of a determined particular carrier component. Accordingly, a problem of wastage of time and resources that occurs in a single carrier environment can be resolved.

公开(公告)号：KR101104249B1

公开(公告)日：2012-01-11

申请号：KR1020080125868

申请日：2008-12-11

Applicant: 한국전자통신연구원

Inventor： 천경열 ,  정광렬 ,  박애순

IPC: H04W48/06 ,  H04W8/24

CPC classification number: H04W48/16

Abstract: 본 발명은 단말기의 캐리어 선택 방법에 관한 것이다. 상기 단말기의 캐리어 선택 방법은, 기지국으로부터 수신된 주변 셀 정보를 통해 캐리어를 검색하는 단계, 상기 검색된 캐리어의 다운 링크 동기를 수행하여 물리적 셀 식별번호를 획득하는 단계, 상기 단말기의 고유 정보를 이용하여 상기 획득된 셀 식별 번호에 대응하는 셀로부터 정착할 캐리어를 선택하는 단계, 및 상기 선택된 캐리어가 정착 조건을 만족할 때 상기 선택된 캐리어에 정착되는 단계를 포함한다.
캐리어, DVB-S2, 호 접속, 단말기

公开(公告)号：KR1020110073181A

公开(公告)日：2011-06-29

申请号：KR1020100035803

申请日：2010-04-19

Applicant: 한국전자통신연구원

Inventor： 권혜연 ,  장문수 ,  박애순

IPC: H04W36/14

Abstract: PURPOSE: A fast handover method to the cellular network in the wireless LAN is provided to omit a part of the unnecessary procedure. CONSTITUTION: A transmit unit(510) transmits a service request message to the base station. A receiver(530) receives the tunneling data received in a base station in response to the service request message from the access point from the base station. The service request message comprises an UNA(Unsolicited Neighbor Advertisement) message. In case the received signal strength of the pilot signal is the predetermined threshold or less, the receiver receives the information for the base station from the access point.

Abstract translation: 目的：提供无线局域网中蜂窝网络的快速切换方法，以省略一部分不必要的过程。 构成：发送单元（510）向基站发送服务请求消息。 接收机（530）响应于来自基站的接入点的服务请求消息接收在基站中接收的隧道数据。 服务请求消息包括UNA（非请求邻居通告）消息。 在导频信号的接收信号强度为预定阈值以下的情况下，接收机从接入点接收基站的信息。

公开(公告)号：KR1020110071621A

公开(公告)日：2011-06-29

申请号：KR1020090128239

申请日：2009-12-21

Applicant: 한국전자통신연구원

Inventor： 황유선 ,  천경열 ,  박애순

IPC: H04W36/08 ,  H04B7/26 ,  H04W88/02

CPC classification number: H04L5/0007 ,  H04L5/001 ,  H04L5/0053 ,  H04W36/0072 ,  H04W36/06 ,  H04W76/10 ,  H04W76/27 ,  H04W76/20

Abstract: PURPOSE: A idle-active transforming apparatus in a carrier aggregation environment is provided to rapidly process the idle-active transition. CONSTITUTION: An RRC attach performing unit(430) processes the RRC connection establishment for a base station by using the first carrier component. A receiver(410) receives the information for one or more second carrier components allocated in a terminal by using the first carrier component from the base station. A bearer setup unit(440) establishes the bearer for the first carrier component. According to the bearer setting completion, a transient part(450) transits a state of the terminal into the active state.

Abstract translation: 目的：提供载波聚合环境中的空闲主动变换装置，以快速处理空闲主动转换。 构成：RRC附着执行单元（430）通过使用第一载波分量来处理基站的RRC连接建立。 接收机（410）通过使用来自基站的第一载波分量来接收在终端中分配的一个或多个第二载波分量的信息。 承载设置单元（440）建立第一载波组件的承载。 根据承载设置完成，暂时部分（450）将终端的状态转变为活动状态。

公开(公告)号：KR1020110060076A

公开(公告)日：2011-06-08

申请号：KR1020090116555

申请日：2009-11-30

Applicant: 한국전자통신연구원

Inventor： 임순용 ,  박애순

IPC: H04W28/26 ,  H04B7/14

CPC classification number: H04W74/0833 ,  H04B7/15542 ,  H04W84/047

Abstract: PURPOSE: A communication system for performing a random access using a relay is provided to improve the access success rate of a terminal in the communication system. CONSTITUTION: A relay(400) includes a radio resource reservation unit(410), a transmission unit(420), and a receiving unit(430). The radio resource reservation unit receives the allocation of access radio resources among radio resources allocated to a BS(Base Station)(440) from the BS. The transmission unit transmits information about the access radio resource to a terminal(450). The receiving unit receives preamble from the terminal with the usage of the access radio resource.

Abstract translation: 目的：提供一种用于使用中继进行随机接入的通信系统，以提高通信系统中终端的接入成功率。 构成：继电器（400）包括无线电资源预留单元（410），发送单元（420）和接收单元（430）。 无线电资源预留单元从BS分配给BS（基站）（440）的无线资源中接收无线资源的分配。 发送单元向终端（450）发送关于接入无线资源的信息。 接收单元利用接入无线资源从终端接收前导码。

公开(公告)号：KR1020110049651A

公开(公告)日：2011-05-12

申请号：KR1020100070990

申请日：2010-07-22

Applicant: 한국전자통신연구원

Inventor： 정광렬 ,  박애순

IPC: H04W68/02 ,  H04W72/02

CPC classification number: H04W68/02 ,  H04M2201/22

Abstract: PURPOSE: A paging method considering carrier aggregation environment in a mobile communication system is provided to control the unit frequency selection through a load control in a base station paging. CONSTITUTION: A terminal confirms a CC set within a paging message(220). If the CC set is same with the CC set of the terminal, the terminal performs a random access through the main CC of the CC set(222~226). The terminal acquires the UL(UpLink) synchronization of the sub CC within the CC set(228). The terminal transmits a connection configuration completion message to the base station(230).

Abstract translation: 目的：提供一种考虑移动通信系统中的载波聚合环境的寻呼方法，通过基站寻呼中的负载控制来控制单元频率选择。 构成：终端确认寻呼消息（220）内的CC集。 如果CC集与终端的CC集相同，则终端通过CC集（222〜226）的主CC执行随机接入。 终端获取CC集（228）内的子CC的UL（UpLink）同步。 终端向基站发送连接配置完成消息（230）。