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    광대역 무선통신 시스템에서 핸드오버를 수행하기 위한장치 및 방법
    41.
    发明公开
    광대역 무선통신 시스템에서 핸드오버를 수행하기 위한장치 및 방법 有权
    宽带无线通信系统中执行切换的设备及方法

    公开(公告)号：KR1020080044593A

    公开(公告)日：2008-05-21

    申请号：KR1020060113617

    申请日：2006-11-17

    Applicant: 삼성전자주식회사 ,  한국과학기술원

    Inventor： 권종형 ,  전영현 ,  김동욱 ,  윤현수 ,  이한진

    IPC: H04B7/26

    CPC classification number: H04W36/0083 ,  H04W36/38 ,  H04W36/32

    Abstract: An apparatus and a method for performing handover in a broadband wireless communication system are provided to control Hysteresis by predicting a handover point of time, thereby improving communication quality by reducing time required to maintain communication between the terminal and a serving base station having lower RSSI. A grouping unit(525) configures at least one group by grouping terminals by using movement path information of the terminals and adjacent base station RSSI(Received Signal Strength Indicator) information. A managing unit(527) corrects corrected Hysteresis information of the rest terminals within the group if a predetermined number of terminals among terminals belonging to the same group perform handover. A transmitting unit(521) transmits a message including the Hysteresis information to a corresponding terminal.

    Abstract translation: 提供一种用于在宽带无线通信系统中执行切换的装置和方法，用于通过预测切换时间点来控制滞后，从而通过减少维持终端与具有较低RSSI的服务基站之间的通信所需的时间来提高通信质量。 分组单元（525）通过使用终端和相邻基站RSSI（接收信号强度指示符）信息的移动路径信息分组终端来配置至少一个组。 如果属于同一组的终端中的预定数量的终端执行切换，则管理单元（527）校正组内的其余终端的校正迟滞信息。 发送单元（521）将包含滞后信息的消息发送到对应的终端。

    광대역 무선통신 시스템에서 중계기와 접속된 단말에게자원할당을 하기 위한 장치 및 방법
    42.
    发明公开
    광대역 무선통신 시스템에서 중계기와 접속된 단말에게자원할당을 하기 위한 장치 및 방법 有权
    宽带无线通信系统中终端连接中继站的资源分配方法

    公开(公告)号：KR1020080019172A

    公开(公告)日：2008-03-03

    申请号：KR1020070084305

    申请日：2007-08-22

    Applicant: 삼성전자주식회사

    Inventor： 권종형 ,  김대관

    IPC: H04B7/26 ,  H04W16/00 ,  H04B7/155 ,  H04L27/26

    CPC classification number: H04W72/085 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0094 ,  H04L25/0228 ,  H04L27/2613 ,  H04L2001/0097 ,  H04L27/2626

    Abstract: An apparatus and a method for allocating resources to a terminal connected with a RS in a broadband wireless communication system are provided to estimate a channel between the terminal connected with the RS, in which a control signal is not repeated, and the RS, thereby selectively allocating resources according to a frequency, determining modulation and encoding schemes, and improving a data transmission rate. A BS(Base Station) apparatus in the wireless communication system of a relay method comprises a transmitter(201) and a scheduler(207). The transmitter transmits a pilot signal transmission request message to a terminal. The scheduler selectively allocates resources to the terminal according to a frequency by using channel information when the channel information estimated from a RS(Relay Station) by using the pilot signal is received.

    Abstract translation: 提供了一种在宽带无线通信系统中向与RS连接的终端分配资源的装置和方法，用于估计与不与重复控制信号的RS连接的终端与RS之间的信道，从而选择性地 根据频率分配资源，确定调制和编码方案，提高数据传输速率。 中继方法的无线通信系统中的BS（基站）装置包括发射机（201）和调度器（207）。 发射机向终端发送导频信号发送请求消息。 当从RS（中继站）通过使用导频信号估计的信道信息被接收时，调度器通过使用信道信息，根据频率来选择性地向终端分配资源。

    다중안테나 시스템에서 핸드오프 하기 위한 장치 및 방법
    43.
    发明公开
    다중안테나 시스템에서 핸드오프 하기 위한 장치 및 방법 有权
    用于在多个天线系统中执行切换的装置和方法

    公开(公告)号：KR1020070025204A

    公开(公告)日：2007-03-08

    申请号：KR1020050081065

    申请日：2005-09-01

    Applicant: 삼성전자주식회사 ,  한국과학기술원

    Inventor： 조성현 ,  윤상보 ,  권종형 ,  조동호 ,  이호원 ,  권태수 ,  김주엽 ,  최식

    IPC: H04B7/26

    CPC classification number: H04B7/04 ,  H04L25/0202 ,  H04W36/0066

    Abstract: An apparatus and a method for handoff in a multi-antenna system are provided to efficiently and precisely carry out handoff as compared with a single antenna system by executing handoff in consideration of the number of active antennas and the mobility of a mobile terminal. An apparatus for executing handoff in a multi-antenna system comprises channel estimators(309,310), an active antenna confirmer(311), and a handoff determiner(313). The channel estimators(309,310) estimate the channel of a received signal, and confirm state information of the received signal. The active antenna confirmer(311) confirms the number of the active antennas of base stations by using the state information of the received signal, confirmed by the channel estimators(309,310). The handoff determiner(313) determines handoff by using the confirmed active antenna number.

    Abstract translation: 提供了一种用于多天线系统中的切换的装置和方法，以便通过考虑到有源天线的数量和移动终端的移动性执行切换，与单个天线系统相比，有效和精确地执行切换。 一种用于在多天线系统中执行切换的装置包括信道估计器（309,310），有源天线确认器（311）和切换确定器（313）。 信道估计器（309,310）估计接收信号的信道，并确认接收信号的状态信息。 有源天线确认器（311）通过使用由信道估计器（309,310）确认的接收信号的状态信息来确认基站的有效天线的数量。 切换确定器（313）通过使用确认的有源天线数来确定切换。

    무선 이동 통신 시스템에서 핸드오버를 위한 시스템 및방법
    44.
    发明公开
    무선 이동 통신 시스템에서 핸드오버를 위한 시스템 및방법 有权
    宽带无线移动通信系统中的切换系统和方法

    公开(公告)号：KR1020070023963A

    公开(公告)日：2007-03-02

    申请号：KR1020050078354

    申请日：2005-08-25

    Applicant: 삼성전자주식회사

    Inventor： 이옥선 ,  박지현 ,  윤상보 ,  권종형 ,  조성현 ,  천정훈

    IPC: H04B7/26

    CPC classification number: H04L47/822 ,  H04L47/14 ,  H04L47/24 ,  H04L47/70 ,  H04L47/767 ,  H04L47/824 ,  H04W36/0055 ,  H04W36/0083 ,  H04W48/16

    Abstract: A system and method for handover in a mobile communication system are provided to prevent data reception delay or errors due to scanning by making a mobile station execute scanning only in one frequency band or one frequency operation mode in a communication system where a base station operates at least two frequency bands or uses at least two frequency operation modes. A serving base station periodically transmits a neighbor base station advertisement(MOB_NBR-ADV) message to a mobile station(302). Receiving the MOB_NBR-ADV message, the mobile station decides to perform scanning for handover if signal strength of the serving base station falls below preset critical signal strength(304). The mobile station transmits a MOB_SCN-REQ(Mobile_Scanning Interval Allocation-Request) message to the serving base station(306). Receiving the MOB_SCN-REQ, the serving base station transmits a RESOURCE-RESERVE-REQ message to neighbor base stations(308,310). Each of the neighbor base stations, receiving the RESOURCE-RESERVE-REQ message, sends a RESOURCE-RESERVE-RSP message to the serving base station in case a radio resource corresponding to a specific band(mode) which can be used for the handoff of the mobile station exists(S314,316).

    Abstract translation: 提供一种用于移动通信系统中的切换的系统和方法，以防止数据接收延迟或由于扫描引起的错误，使得移动台仅在基站操作的通信系统中的一个频带或一个频率操作模式中执行扫描 至少两个频带或使用至少两个频率操作模式。 服务基站向移动台（302）周期性地发送邻居基站通告（MOB_NBR-ADV）消息。 接收到MOB_NBR-ADV消息，如果服务基站的信号强度低于预设的临界信号强度，则移动台决定执行切换扫描（304）。 移动台向服务基站（306）发送MOB_SCN-REQ（Mobile_Scanning Interval Allocation-Request）消息。 接收到MOB_SCN-REQ，服务基站向相邻基站发送RESOURCE-RESERVE-REQ消息（308,310）。 在接收到RESOURCE-RESERVE-REQ消息的每个相邻基站发送RESOURCE-RESERVE-RSP消息到服务基站，在与能够用于切换的特定频带（模式）相对应的无线电资源的情况下 存在移动台（S314,316）。

    이동 통신 시스템에서의 핸드오프 방법
    46.
    发明公开
    이동 통신 시스템에서의 핸드오프 방법 有权
    移动通信系统中的切换方法

    公开(公告)号：KR1020060128542A

    公开(公告)日：2006-12-14

    申请号：KR1020050050058

    申请日：2005-06-10

    Applicant: 삼성전자주식회사

    Inventor： 권종형 ,  조성현 ,  천정훈 ,  박지현 ,  이옥선

    IPC: H04B7/26

    CPC classification number: H04W28/18 ,  H04W36/08 ,  H04W92/20 ,  H04W72/044

    Abstract: A handoff method in a mobile communication system is provided to minimize the degradation of QoS(Quality of Service) in handoff by estimating uplink/downlink channel information and using them for resource allocation of a mobile terminal in handoff. When a mobile terminal for which a session is maintained for uplink/downlink data transmission/reception(S302) moves to a cell boundary area, handoff is performed(S304). Channels of uplink/downlink between adjacent base stations and the mobile terminal are estimated(S306) and a base station that has the best channel state and resources which can receive the mobile terminal is determined as a target base station(S308). Resources that are most suitable for QoS of the mobile terminal are reserved(S310). The reserved resources are allocated to the mobile terminal and at the same time handoff is performed(S312).

    Abstract translation: 提供移动通信系统中的切换方法，用于通过估计上行链路/下行链路信道信息并将其用于切换中的移动终端的资源分配来最小化切换中的QoS（服务质量）的劣化。 当维持用于上行链路/下行链路数据发送/接收的会话的移动终端（S302）移动到小区边界区域时，进行切换（S304）。 估计相邻基站与移动终端之间的上行链路/下行链路的信道（S306），将具有最佳信道状态的基站和可以接收移动终端的资源确定为目标基站（S308）。 保留最适合移动终端QoS的资源（S310）。 保留的资源被分配给移动终端，同时执行切换（S312）。

    다중입출력시스템을 위한 랜덤 빔포밍 방법
    47.
    发明公开
    다중입출력시스템을 위한 랜덤 빔포밍 방법 有权
    MIMO系统的随机波束形成方法

    公开(公告)号：KR1020060104200A

    公开(公告)日：2006-10-09

    申请号：KR1020050026138

    申请日：2005-03-29

    Applicant: 삼성전자주식회사 ,  한국과학기술원

    Inventor： 권종형 ,  황찬수 ,  김은용 ,  전주환

    IPC: H04B7/08 ,  H04J11/00

    CPC classification number: H04B7/0452 ,  H04B7/0443 ,  H04B7/0606 ,  H04B7/0617 ,  H04B7/0632 ,  H04L5/006 ,  H04L5/0064

    Abstract: 본 발명의 랜덤 빔포밍 기반의 전송 방법에서는 기지국이 이동국들로부터 현재 상기 기지국에 의해 임의로 결정된 가중치 벡터에 대한 채널 별 전송률을 포함하는 피드백 정보를 수신하고, 상기 이동국들로부터 수신된 동일 채널에 전송률을 비교하고, 상기 전송률이 가장 큰 이동국에 해당 채널을 할당하고, 상기 할당된 채널을 통해 신호를 전송한다. 본 발명의 랜덤 빔포밍 기반의 전송 방법은 빔포밍 기법을 이용하면서도 다수의 단말에 대해 동시에 다른 채널을 할당 함으로써, 자원할당의 공평성과 효율성을 제고하는 한편 이를 통해 전체 시스템 용량을 증가시킬 수 있다.
    랜덤 빔포밍 (random beamforming), 다이버시티, 다중입출력(MIMO)

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