公开(公告)号：KR1020070107614A

公开(公告)日：2007-11-07

申请号：KR1020070042760

申请日：2007-05-02

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 고영조 ,  김재흥 ,  김정임 ,  이경석 ,  김영훈 ,  방승찬 ,  김일규 ,  박형근 ,  장갑석 ,  이효석

IPC: H04L27/26 ,  H04B7/26 ,  H04L12/56 ,  H04L12/28

CPC classification number: H04L27/2601 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0053

Abstract: A method for transmitting/receiving downlink scheduling information in an OFDMA(Orthogonal Frequency Division Multiple Access) system is provided to reduce the quantity of scheduling information by using a resource block having a minimum resource block index, a maximum resource block index, or a channel with a high quality. A method for transmitting/receiving downlink scheduling information in an OFDMA system includes the steps for allocating at least one of resource blocks comprising downlink resources of the OFDMA system, to each terminal(S200); selecting the resource block for each terminal on the basis of the size of indexes of each allocated resource block(S210); generating scheduling information including terminal resource allocation information and terminal discrimination information, for each terminal(S220); and transmitting the scheduling information of the terminal to each terminal by using the selected resource block(S234).

Abstract translation: 提供了一种用于在OFDMA（正交频分多址）系统中发送/接收下行链路调度信息的方法，通过使用具有最小资源块索引，最大资源块索引或信道的资源块来减少调度信息的数量 具有高品质。 在OFDMA系统中发送/接收下行链路调度信息的方法包括：向每个终端分配包括OFDMA系统的下行资源的资源块中的至少一个的步骤（S200）。 基于每个分配的资源块的索引的大小来选择每个终端的资源块（S210）; 为每个终端产生包括终端资源分配信息和终端识别信息的调度信息（S220）; 以及通过使用所选择的资源块将终端的调度信息发送给每个终端（S234）。

公开(公告)号：KR100927736B1

公开(公告)日：2009-11-18

申请号：KR1020080022350

申请日：2008-03-11

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 이경석 ,  정수정 ,  김재흥 ,  김정임 ,  유병한

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04W8/26 ,  H04W28/06 ,  H04W76/10

Abstract: A method for establishing synchronization with a user equipment in a base station of a wireless communication system, comprising: transmitting random access channel information to the user equipment (S62); receiving a random access message corresponding to the random access channel information from the user equipment (S63); and transmitting a response message including information for establishing synchronization to the user equipment (S63), wherein the random access channel information includes random access channel allocation information.

Abstract translation: 一种用于与无线通信系统的基站中的用户设备建立同步的方法，包括：向所述用户设备发送随机接入信道信息（S62）; 接收来自用户设备的随机接入信道信息对应的随机接入消息（S63）; 以及向用户设备发送包括用于建立同步的信息的响应消息（S63），其中随机接入信道信息包括随机接入信道分配信息。

公开(公告)号：KR100885476B1

公开(公告)日：2009-02-24

申请号：KR1020070042760

申请日：2007-05-02

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 고영조 ,  김재흥 ,  김정임 ,  이경석 ,  김영훈 ,  방승찬 ,  김일규 ,  박형근 ,  장갑석 ,  이효석

IPC: H04L27/26 ,  H04B7/26 ,  H04L12/56 ,  H04L12/28

Abstract: 본 발명은 직교 주파수 분할 다중 접속(Orthogonal Frequency Division Multiple Access: 이하, OFDMA) 시스템에서의 하향링크 스케줄링 정보 송/수신 방법 및 장치에 관한 것으로, 이 송신 방법은 OFDMA 시스템의 하향 링크 자원으로 구성된 자원블록들 중에서, 적어도 하나의 자원블록을 각 단말에 할당하는 할당단계; 상기 각 단말에 대해, 상기 할당된 자원블록 중에서 소정의 조건에 따라 자원블록을 선택하는 선택단계; 상기 각 단말에 대해, 상기 단말의 자원할당정보 및 상기 단말을 식별하기 위한 식별정보를 포함하는 스케줄링 정보를 생성하는 생성단계; 및 상기 각 단말에 대해, 선택된 자원블록을 이용하여 상기 단말의 스케줄링 정보를 전송하는 전송단계를 포함한다. 본 발명에 따르면, 스케줄링의 자유도를 줄이지 않으면서 스케줄링 정보의 전송에 사용되는 하향 링크 자원의 량을 줄일 수 있다.
OFDM, OFDMA, 하향링크 제어정보, 스케줄링 정보, 자원할당 정보, 개별적 코딩, 그룹별 코딩, 비트맵

公开(公告)号：KR1020080065245A

公开(公告)日：2008-07-11

申请号：KR1020080002299

申请日：2008-01-08

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 김재흥 ,  이경석 ,  김정임 ,  유병한 ,  방승찬

IPC: H04W28/06 ,  H04B7/24 ,  H03M13/09

Abstract: A method for transmitting and receiving packet data in a packet-based wireless communication system is provided to minimize an amount of scheduling information to be transmitted through the wireless resources. A base station broadcasts the system information including scheduling policy, persistence allocation or dynamic allocation through a broadcasting channel(201). The base station designates the corresponding group of the terminal, allocates and notifies the group identifier together with the inherent terminal identifier to the terminal(203) at the call setting procedure. At this time, the base station designates the scheduling property relating to the corresponding terminal through an RRC(Radio Resource Control) connection set procedure. The RRC connection procedure between the base station and the terminal is performed and thereafter the base station allocates the radio resources block for transmitting the down-link packet data and sets the radio RB(Resources Block) identifier(204). Thereafter, the base station transmits the control signal block to the terminal according to the designated scheduling pattern(205).

Abstract translation: 提供了一种在基于分组的无线通信系统中发送和接收分组数据的方法，以最小化通过无线资源发送的调度信息的量。 基站通过广播信道（201）广播包括调度策略，持久性分配或动态分配的系统信息。 基站指定相应的终端组，在呼叫设置过程中向终端（203）分配并将固有终端标识符与组标识符一起通知给终端（203）。 此时，基站通过RRC（无线资源控制）连接集合过程来指定与对应的终端相关的调度属性。 执行基站与终端之间的RRC连接过程，此后基站分配用于发送下行链路分组数据的无线资源块，并设置无线电RB（资源块）标识符（204）。 此后，基站根据指定的调度模式向终端发送控制信号块（205）。

公开(公告)号：KR1020080041044A

公开(公告)日：2008-05-09

申请号：KR1020060109133

申请日：2006-11-06

Applicant: 삼성전자주식회사

Inventor： 김정임 ,  김연규

IPC: C08G73/06 ,  G02F1/1337

Abstract: An alignment layer, and a liquid crystal display device containing the alignment layer are provided to decrease brightness in the black state, thereby increasing the contrast of an LCD device and improving definition. An alignment layer comprises a first compound which comprises benzenediamine; a second compound which is combined to the first compound and has a tree structure of the units having a first carbon chain containing a nitrogen atom partially; and third compounds which are combined to the units located at the terminal of the tree structure and have a second carbon chain connected with the first carbon chain.

Abstract translation: 配置取向层和含有取向膜的液晶显示装置，以降低黑色的亮度，提高LCD装置的对比度，提高清晰度。 取向层包括含有苯二胺的第一化合物; 第二化合物，其与第一化合物组合并且具有部分具有含有氮原子的第一碳链的单元的树结构; 和与位于树结构末端的单元组合并且具有与第一碳链相连的第二碳链的第三化合物。