公开(公告)号：KR1020110059544A

公开(公告)日：2011-06-02

申请号：KR1020100118603

申请日：2010-11-26

Applicant: 한국전자통신연구원 ,  동국대학교 산학협력단

Inventor： 이희수 ,  노태균 ,  안재영 ,  이경석 ,  임민중 ,  강충구

IPC: H04B7/14 ,  H04W16/04

CPC classification number: H04B7/2606 ,  H04B7/15542

Abstract: PURPOSE: A relaying method for increasing the frequency-selective characteristic of a wireless channel and a relaying unit are provided to reduce interference for users located at the edge of a cell through amplification of only terminals within a coverage area thereof. CONSTITUTION: Each relay unit(200) establishes information about a relay target frequency band. The relay unit transmits a control signal including the information to one or more relay units. The one or more relay units extract the information about the frequency band within the control signal. According to the information, the one or more relay units amplify a signal. The one or more relay units transmit the amplified signal to one or more terminals(300).

Abstract translation: 目的：提供一种用于增加无线信道和中继单元的频率选择特性的中继方法，以通过仅对其覆盖区域内的终端进行放大来减少位于小区边缘的用户的干扰。 构成：每个中继单元（200）建立有关中继目标频带的信息。 中继单元将包括该信息的控制信号发送到一个或多个中继单元。 一个或多个中继单元提取关于控制信号内的频带的信息。 根据该信息，一个或多个中继单元放大信号。 一个或多个中继单元将放大的信号发送到一个或多个终端（300）。

公开(公告)号：KR100932787B1

公开(公告)日：2009-12-22

申请号：KR1020070098307

申请日：2007-09-28

Applicant: 한국전자통신연구원 ,  주식회사 케이티

Inventor： 이경석 ,  김재흥 ,  김정임 ,  정수정 ,  유병한

IPC: H04L12/24 ,  H04L12/26 ,  H04B7/26

Abstract: A channel state information transmission method in a user terminal of a wideband mobile communication system and a wireless resource allocation method in a base station thereof are provided to enable the base station to determine priority according to a lot of channel state information sent from each user terminal and to allocate wireless resources to each user terminal, thereby easily reducing data size of the channel state information as decreasing complexity of priority determination. A user terminal(32) measures a channel state of downlink. A base station(31) converts the measured channel state value of the downlink into a channel state information report type for each subcarrier group(302). The user terminal generates channel state information according to the channel state value converted into the channel state information report type(304). The user terminal transmits the generated channel state information to the base station(306).

Abstract translation: 提供宽带移动通信系统的用户终端中的信道状态信息传输方法及其基站中的无线资源分配方法，以使得基站能够根据从每个用户终端发送的大量信道状态信息来确定优先级 并且为每个用户终端分配无线资源，由此降低优先级确定的复杂度，从而容易地减小信道状态信息的数据大小。 用户终端（32）测量下行链路的信道状态。 基站（31）将所测量的下行链路的信道状态值转换成每个子载波组的信道状态信息报告类型（302）。 用户终端根据转换为信道状态信息报告类型的信道状态值生成信道状态信息（304）。 用户终端将产生的信道状态信息发送给基站（306）。

公开(公告)号：KR1020090129326A

公开(公告)日：2009-12-16

申请号：KR1020090043975

申请日：2009-05-20

Applicant: 한국전자통신연구원

Inventor： 김재흥 ,  이경석 ,  안재영 ,  김영진

IPC: H04B7/155 ,  H04B7/26

CPC classification number: H04W84/045 ,  H04W12/06 ,  H04W48/02 ,  H04W72/04 ,  H04W74/08

Abstract: PURPOSE: A terminal administration and interference control method in a small base station for managing registration/connection/access procedures between a terminal and the small base station are provided to connect the small base station in a simplified random access procedure. CONSTITUTION: An access preamble controller(210) assigns intrinsic preambles to each terminal registered in the small base station. A transceiver(220) receives an arbitrary access request message. The transceiver receives RRC(Radio Resource Control) connect request signal and terminal information. A terminal confirming unit(230) confirms whether the terminal is registered through terminal information.

Abstract translation: 目的：提供一种用于管理终端和小型基站之间的注册/连接/接入过程的小型基站中的终端管理和干扰控制方法，以简化的随机接入过程连接小型基站。 构成：接入前同步码控制器（210）将固有的前导码分配给在小型基站中注册的每个终端。 收发器（220）接收任意访问请求消息。 收发器接收RRC（无线资源控制）连接请求信号和终端信息。 终端确认单元（230）通过终端信息确认终端是否被登记。

公开(公告)号：KR1020090129325A

公开(公告)日：2009-12-16

申请号：KR1020090043919

申请日：2009-05-20

Applicant: 한국전자통신연구원

Inventor： 김재흥 ,  이경석 ,  안재영 ,  김영진

IPC: H04B7/26 ,  H04B1/40 ,  H04B7/155

CPC classification number: H04W72/02 ,  H04L27/2692 ,  H04W72/04 ,  H04W72/048 ,  H04W76/40 ,  H04W88/023

Abstract: PURPOSE: A communications system for grouping random access preamble capable of efficiently performing random access procedure based on preamble group information is provided to improve the efficiency of the random access procedure and the success probability of the random access procedure. CONSTITUTION: A receiver(210) receives a preamble grouping condition about a plurality of preambles from a base station. A preamble grouping unit(220) groups a plurality of preambles. A random access preamble selector(230) selects the random access preamble. A transmitter(240) transmits the information about the group in which the random access preamble is included.

Abstract translation: 目的：提供一种用于分组能够基于前导码组信息有效执行随机接入过程的随机接入前导的通信系统，以提高随机接入过程的效率和随机接入过程的成功概率。 构成：接收机（210）从基站接收关于多个前同步码的前同步码分组条件。 前导分组单元（220）对多个前导码进行分组。 随机接入前导码选择器（230）选择随机接入前导码。 发射机（240）发送关于其中包括随机接入前导码的组的信息。

公开(公告)号：KR1020090103777A

公开(公告)日：2009-10-01

申请号：KR1020090025747

申请日：2009-03-26

Applicant: 한국전자통신연구원

Inventor： 김재흥 ,  이경석

IPC: H04B7/06 ,  H04B7/26

CPC classification number: H04W28/0231 ,  H04B7/024 ,  H04B7/0413 ,  H04W28/0236

Abstract: PURPOSE: A hierarchical transmission system and a method for a variable quality service on a cellular system are provided to hierarchically transmit packet information using an available scheme and resource between a terminal and a base station, thereby supporting various the quality of services in a cellular system. CONSTITUTION: A method for a variable quality service on a cellular system comprises the steps of: generating packet information(S801); generating plural hierarchy packets by hierarchically coding the packet information according to a control parameter(S802); generating the kinds of hierarchy packet information by applying an MIMO technique to the plural hierarchy packets; including plural antennas; and transmitting the hierarchy packet information to each antenna(S804).

Abstract translation: 目的：提供一种用于蜂窝系统上的可变质量服务的分层传输系统和方法，以使用终端和基站之间的可用方案和资源来分层发送分组信息，从而支持蜂窝系统中的各种服务质量 。 构成：一种用于蜂窝系统的可变质量服务的方法，包括以下步骤：产生分组信息（S801）; 通过根据控制参数对分组信息进行分层编码来生成多个分层分组（S802）; 通过对多层分组应用MIMO技术来生成层次分组信息的种类; 包括多个天线; 并将层级分组信息发送到每个天线（S804）。

公开(公告)号：KR1020080112144A

公开(公告)日：2008-12-24

申请号：KR1020080057833

申请日：2008-06-19

Applicant: 한국전자통신연구원

Inventor： 김정임 ,  이경석 ,  김재흥 ,  유병한 ,  방승찬

IPC: H04L1/18

CPC classification number: H04L1/1825 ,  H04L1/1685 ,  H04L1/1887 ,  H04L2001/0093 ,  H04W72/005

Abstract: A method for transmitting/receiving data capable of improving effectiveness of retransmission in multimedia broadcast multicast service system and apparatus thereof are provided to effectively use a wireless resource by preventing a retransmission of an unnecessary data. A method for transmitting/receiving data capable of improving effectiveness of retransmission in multimedia broadcast multicast service system comprises the following steps: a step for confirming a terminal which receives a data provided with a multimedia broadcast multicast service(S102); and a step for determining an existence and a nonexistence of an error report feedback about the retransmission of the data according to the number of confirmed terminals(S104).

Abstract translation: 提供一种用于发送/接收能够提高多媒体广播多播服务系统中的重传效能的方法及其装置，以通过防止不必要的数据的重传来有效地使用无线资源。 一种用于发送/接收能够提高多媒体广播多播服务系统中的重传效能的方法，包括以下步骤：确认接收多媒体广播组播服务的数据的终端的步骤（S102）; 以及根据确认终端的数量确定关于数据的重传的错误报告反馈的存在和不存在的步骤（S104）。

公开(公告)号：KR1020080083587A

公开(公告)日：2008-09-18

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 allocating radio resources for data transmission in a packet-based mobile communication system and a method for transmitting data therein are provided to minimize the usage of a control channel by allocating radio resources of uplink and downlink data channels in a persistent allocation method at a connection setup time for a packet service and transmitting data through persistently allocated resources. A base station allocates terminal identifiers to UEs(User Equipments) respectively. Based on a control message delivered from an upper layer, the base station transmits information associated with the allocation of uplink/downlink RBs(Resource Blocks) and the location information of the uplink/downlink RBs to a specific UE and allocates a persistent RB. The base station encodes the allocated persistent RB in order to transmit data to the specific UE through the persistent RB.

Abstract translation: 提供一种用于在基于分组的移动通信系统中分配用于数据传输的无线电资源的方法和用于在其中发送数据的方法，以通过以持续分配方式分配上行链路和下行链路数据信道的无线电资源来最小化控制信道的使用 分组业务的连接建立时间，并通过持续分配的资源发送数据。 基站分别向UE（用户设备）分配终端标识符。 基于从上层发送的控制消息，基站向特定UE发送与上行链路/下行链路RB（资源块）的分配以及上行链路/下行链路RB的位置信息相关联的信息，并且分配持久性RB。 基站对所分配的持久性RB进行编码，以通过持久性RB向特定UE发送数据。

公开(公告)号：KR1020080066561A

公开(公告)日：2008-07-16

申请号：KR1020080000684

申请日：2008-01-03

Applicant: 한국전자통신연구원

Inventor： 김재흥 ,  김정임 ,  이경석 ,  유병한 ,  방승찬

IPC: H04B17/00 ,  H04B7/26 ,  H04B7/155

CPC classification number: H04W52/0216 ,  H04B17/309 ,  H04W24/00 ,  H04W36/00 ,  H04W72/0413 ,  H04W76/28 ,  H04W88/08 ,  Y02D70/1262 ,  Y02D70/24 ,  Y02D70/25 ,  H04W28/18 ,  Y02D70/00

Abstract: A method for reporting measurement information in a packet-based communication system is provided to enable a UE(User Equipment), which is executing a low power consumption operation in an active state, to measure and report information about a serving cell and neighbor cells according to a measurement report parameter in order to support handover. A UE receives neighbor node B information and handover-associated threshold information from a serving node B(401). The serving node B carries out an RRC(Radio Resource Control) connection to provide a packet service together with the UE(402). Then the serving node B determines a DRX/DTX operation while providing the packet service(403). At this moment, the serving node B negotiates with the UE on DRX/DTX parameters and a measurement report parameter(404,405), and notifies the UE of the determined parameters(406). Based on the determined parameters, the UE measures and reports information about the serving cell and neighbor cells while executing the DRX/DTX operation(407).

Abstract translation: 提供一种用于在基于分组的通信系统中报告测量信息的方法，以使处于活动状态的执行低功耗操作的UE（用户设备）能够根据服务小区和相邻小区的信息来测量和报告关于服务小区和相邻小区的信息 到测量报告参数，以支持切换。 UE从服务节点B（401）接收邻居节点B信息和切换相关阈值信息。 服务节点B执行RRC（无线资源控制）连接以与UE（402）一起提供分组服务。 然后，服务节点B在提供分组服务的同时确定DRX / DTX操作（403）。 此时，服务节点B通过DRX / DTX参数和测量报告参数（404,405）与UE协商，并向UE通知所确定的参数（406）。 基于确定的参数，UE在执行DRX / DTX操作期间测量并报告关于服务小区和相邻小区的信息（407）。

公开(公告)号：KR1020070121588A

公开(公告)日：2007-12-27

申请号：KR1020070061253

申请日：2007-06-21

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 김정임 ,  김재흥 ,  이경석 ,  유병한

IPC: H04B7/26

CPC classification number: H04W68/00 ,  H04W52/0216 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/25 ,  H04B7/2612

Abstract: A method for paging a terminal in an RRC(Radio Resource Control) connected state in an LTE(Long Term Evolution) System and a base station apparatus therefore are provided to perform paging of the terminal in the RRC connected status by using the terminal's intrinsic identifier, thereby reducing power consumption of the terminal by having no necessity for the terminal to demodulate unnecessarily a control channel. A method for paging a terminal in an RRC connected state in an LTE(Long Term Evolution) System comprises the following steps of: enabling the MAC(Media Access Control) processing unit of a base station to generate a paging message according to the necessity of paging for the terminal and transmit the paging message to a physical layer processing unit(401); enabling the physical layer processing unit to transmit a paging indicator including the terminal's instinct identifier to the terminal(402); and enabling the MAC scheduler of the base station to transmit radio resource information to the terminal through a control channel if a response for the paging indicator is received from the terminal(404).

Abstract translation: 因此，提供了在LTE（长期演进）系统中的RRC（Radio Resource Control）连接状态下寻呼终端的方法和基站装置，以便通过使用终端的固有标识符来执行RRC连接状态的终端的寻呼 从而通过不必使端子不必要地解调控制信道来减少终端的功耗。 一种用于在LTE（长期演进）系统中以RRC连接状态寻呼终端的方法包括以下步骤：使基站的MAC（媒体接入控制）处理单元根据需要生成寻呼消息 寻呼终端并将寻呼消息发送到物理层处理单元（401）; 使所述物理层处理单元将包括所述终端的本能标识符的寻呼指示符发送到所述终端（402）; 以及如果从所述终端接收到对所述寻呼指示符的响应，则使得所述基站的MAC调度器能够通过控制信道向所述终端发送无线电资源信息。

公开(公告)号：KR1020070092173A

公开(公告)日：2007-09-12

申请号：KR1020070022902

申请日：2007-03-08

Applicant: 한국전자통신연구원

Inventor： 이경석 ,  김재흥 ,  김정임

IPC: H04W72/12 ,  H04W72/04 ,  H04L12/28

Abstract: An uplink signaling method for supporting a streaming service in a packet mobile communication system, and a base station and mobile station therefor are provided to transmit uplink data so as to satisfy the time constraint of a streaming service which requires a real-time service and to give an opportunity of fair scheduling to the mobile stations connected to a base station. A base station for supporting a streaming service in a packet mobile communication system comprises a channel state measurement part(33), an average data rate calculation part(34), a control information processing part(32), and a resource allocation part(35). The channel state measurement part(33) measures uplink channel state of the whole base station by using a channel state measurement reference signal which is periodically received from a mobile station. The average data rate calculation part(34) calculates the average data rate for each subcarrier group by using the measured uplink channel state. The control information processing part(32) processes the control information transmitted from the mobile station. The resource allocation part(35) allocates uplink resources by using the calculated average data rate and the characteristic information of a packet service transferred through the control information processing part(32) from the mobile station. The resource allocation part(35) compares a data rate, transferred from the mobile terminal, with the calculated average data rate and sets an allowable transmission window.

Abstract translation: 提供一种支持分组移动通信系统中的流式传输服务的上行链路信令方法，以及一种基站及其移动台，用于传输上行链路数据，以满足需要实时业务的流服务的时间约束， 给连接到基站的移动台公平调度的机会。 用于在分组移动通信系统中支持流服务的基站包括信道状态测量部分（33），平均数据速率计算部分（34），控制信息处理部分（32）和资源分配部分（35） ）。 信道状态测量部（33）通过使用从移动台周期性地接收到的信道状态测量参考信号来测量整个基站的上行链路信道状态。 平均数据率计算部（34）通过使用所测量的上行链路信道状态来计算每个子载波组的平均数据速率。 控制信息处理部（32）处理从移动台发送的控制信息。 资源分配部（35）通过使用计算出的平均数据速率和通过控制信息处理部（32）从移动台传送的分组业务的特性信息来分配上行链路资源。 资源分配部（35）将从移动终端传送的数据速率与计算出的平均数据速率进行比较，并设定容许的传输窗口。