公开(公告)号：KR1020130063658A

公开(公告)日：2013-06-17

申请号：KR1020110130145

申请日：2011-12-07

Applicant: 한국전자통신연구원

Inventor： 김경숙 ,  박용직 ,  유병한 ,  박남훈 ,  최성구 ,  박순기 ,  김형섭

IPC: H04W72/08

CPC classification number: H04W72/082 ,  H04W72/085 ,  H04W88/02

Abstract: PURPOSE: A wireless resource assignment method of a mobile communication system is provided to improve the service quality of a terminal by improving resource usage efficiency in an overlapped cell environment. CONSTITUTION: A resource assignment device receives resource assignment information of a neighbor cell generating interference between the cells. The resource assignment device divides resource assignment target resources based on the received resource assignment information. The resource assignment device assigns resources to each terminal by considering interference between the cells(S507-S509). The resource assignment information is ABS(Almost Blank Sub-frame) pattern information defined in the neighbor cell. The resource assignment device is divided into a first and a second terminal group. [Reference numerals] (AA) Start resource assignment; (BB,DD,FF,HH) Yes; (CC,EE,GG,II) No; (JJ) End; (S501) Corresponding target sub-frame = ABS ?; (S502) Apply a first weighted value to the wireless channel quality of terminals belonged to a interfered terminal group in the ABS; (S503) Apply a second weighted value to the wireless channel quality of terminals belonged to a non-interfered terminal group; (S504) Select a terminal to which a resource is assigned by considering the weighted value applied wireless channel quality and service requirements; (S505) Selected terminal = Interfered terminal ?; (S506) Assignment target sub-frame = ABS ?; (S507) Assign resources based on the wireless channel quality of the interfered terminal in the ABS; (S508) Assign resources based on the wireless channel quality of the interfered terminal in a Non-ABS; (S509) Assign resources based on the wireless channel quality of the non-interfered terminal; (S510) Is there an available resource and a resource assignment requesting terminal?

Abstract translation: 目的：提供移动通信系统的无线资源分配方法，通过提高重叠小区环境中的资源使用效率，提高终端的业务质量。 构成：资源分配装置接收在小区之间产生干扰的相邻小区的资源分配信息。 资源分配装置根据接收到的资源分配信息来划分资源分配对象资源。 资源分配装置通过考虑小区之间的干扰来向各终端分配资源（S507〜S509）。 资源分配信息是在相邻小区中定义的ABS（几乎空白子帧）模式信息。 资源分配装置被分成第一和第二终端组。 （附图标记）（AA）开始资源分配; （BB，DD，FF，HH）是; （CC，EE，GG，II）否; （JJ）结束; （S501）对应的目标子帧= ABS？ （S502）对ABS中的受干扰终端组的终端的无线信道质量应用第一加权值; （S503）对属于非干扰终端组的终端的无线信道质量应用第二加权值; （S504）考虑应用无线信道质量和服务要求的加权值，选择资源分配到的终端; （S505）选定端子=被干扰端子？ （S506）分配目标子帧= ABS？ （S507）根据ABS中受干扰终端的无线信道质量分配资源; （S508）基于非ABS中受干扰终端的无线信道质量分配资源; （S509）基于无干扰终端的无线信道质量来分配资源; （S510）是否有可用资源和资源分配请求终端？

公开(公告)号：KR1020120070443A

公开(公告)日：2012-06-29

申请号：KR1020100132001

申请日：2010-12-21

Applicant: 한국전자통신연구원

Inventor： 김경숙 ,  신재승 ,  박현서

IPC: H04B7/26

CPC classification number: H04W72/121 ,  H04W4/70 ,  H04W8/186 ,  H04W72/042

Abstract: PURPOSE: A data transmitting method of a machine type communication(MTC) device and a mobile communication system using the same are provided to overcome the loads of access networks. CONSTITUTION: A base station applies specific identification(ID) to MTC groups which are classified according to the characteristics of applications and allocates uplink resources to each MTC group ID. An MTC device(110) is in the MTC group and sets the specific transmission period of standing-by time and receives information related to the uplink resources allocated by the MTC group ID from the base station after the specific transmission period of standing-by time. The MTC device transmits data to the base station using the allocated uplink resources.

Abstract translation: 目的：提供机器型通信（MTC）设备的数据发送方法和使用其的移动通信系统，以克服接入网络的负担。 构成：基站对根据应用特征分类的MTC组应用特定标识（ID），并向每个MTC组ID分配上行链路资源。 MTC设备（110）在MTC组中并设置待机时间的特定传输周期，并且在特定的待机时间段之后从基站接收与MTC组ID分配的上行链路资源有关的信息 。 MTC设备使用分配的上行链路资源向基站发送数据。

公开(公告)号：KR101093220B1

公开(公告)日：2011-12-13

申请号：KR1020090023353

申请日：2009-03-19

Applicant: 한국전자통신연구원

Inventor： 신재승 ,  박현서 ,  김경숙 ,  박용직 ,  신연승

IPC: H04B7/14 ,  H04W72/08 ,  H04W84/08

Abstract: 본 발명은 셀의 경계 영역에 설치되는 셀간 간섭 조정장치 및 셀의 경계 영역에 위치하는 이동단말에 대한 셀간 간섭 조정방법에 관한 것으로, 셀간 간섭의 주요 원인이 되는 셀의 경계 영역에 셀간 간섭 조정장치를 설치하고, 기지국이 이 셀간 간섭 조정장치의 사용 주파수 및 전송 출력을 사전에 설정된 링크(Link)를 통해 전달함으로써 셀간 간섭 조정장치가 복잡한 알고리즘을 사용하지 않고도 간단하게 셀간 간섭을 조정할 수 있도록 하여 통신 성능을 향상시킬 수 있도록 한 것이다.
이동단말, 기지국, 셀, 경계 영역, 셀간 간섭 조정

公开(公告)号：KR101090543B1

公开(公告)日：2011-12-08

申请号：KR1020090124425

申请日：2009-12-15

Applicant: 한국전자통신연구원

Inventor： 신재승 ,  박현서 ,  김경숙 ,  송평중 ,  신연승

IPC: H04B7/14 ,  H04W72/00

Abstract: 본발명은이동통신중계기에있어서, 기지국과상기이동통신중계기간의링크에서의무선자원의사용률을측정하는측정부, 상기사용률에기초하여상기링크가과부하상태인지판단하는과부하판단부, 및상기링크가상기과부하상태이면적어도하나의단말에게과부하를나타내는정보를전송하는전송부를제안한다.

公开(公告)号：KR1020110067768A

公开(公告)日：2011-06-22

申请号：KR1020090124500

申请日：2009-12-15

Applicant: 한국전자통신연구원

Inventor： 신재승 ,  박현서 ,  김경숙 ,  박용직 ,  신연승 ,  김영진

IPC: H04B7/14 ,  H04W72/12

CPC classification number: H04W72/1289 ,  H04L1/1887 ,  H04L2001/0097 ,  H04W84/047

Abstract: PURPOSE: A subframe scheduling method and system thereof in a mobile communication relay system are provided to enable a base station to change the location of a sub frame based on period information. CONSTITUTION: A base station(110) sets up sub-frame information. A relay(120) relays information transmission between the base station and a terminal. The relay executes a service based on the sub-frame information. The relay transmits period information of the service to the base station. The base station varies the sub-frame information based on period information. The base station transmits the changed sub-frame information to the relay.

Abstract translation: 目的：提供移动通信中继系统中的子帧调度方法及其系统，使基站能够根据周期信息改变子帧的位置。 构成：基站（110）设置子帧信息。 中继站（120）中继基站与终端之间的信息传输。 继电器基于子帧信息执行服务。 中继将该服务的周期信息发送给基站。 基站根据周期信息改变子帧信息。 基站向中继发送变更后的子帧信息。

公开(公告)号：KR1020100071791A

公开(公告)日：2010-06-29

申请号：KR1020080130630

申请日：2008-12-19

Applicant: 한국전자통신연구원

Inventor： 김경숙 ,  신재승 ,  박현서 ,  박용직 ,  신연승

IPC: H04W72/08 ,  H04W28/24

CPC classification number: H04L5/0053 ,  H04L5/006 ,  H04L5/0094 ,  H04W72/1263

Abstract: PURPOSE: A scheduling method in a base station considering a down link control channel resource and a device thereof are provided to prevent overlap of a CCE(Control Channel Element) of a specific search space in a user terminal. CONSTITUTION: An aggregation level determining unit(11) determines an aggregation level of a common search space by considering channel quality about a plurality of user terminals. A message selecting unit(15) recognizes the number of messages necessary a common search space assignment and the number of candidates of a down link control channel according to the aggregation level. The message selecting unit selects a part of the messages according to the number of the candidates of the down link control channel.

Abstract translation: 目的：提供考虑下行链路控制信道资源的基站中的调度方法及其装置，以防止用户终端中特定搜索空间的CCE（控制信道要素）重叠。 构成：聚合级别确定单元（11）通过考虑关于多个用户终端的信道质量来确定公共搜索空间的聚合级别。 消息选择单元（15）根据聚合级别识别公共搜索空间分配所需的消息数量和下行链路控制信道的候选数量。 消息选择单元根据下行链路控制信道的候选的数量来选择一部分消息。

公开(公告)号：KR1020100065008A

公开(公告)日：2010-06-15

申请号：KR1020090016492

申请日：2009-02-26

Applicant: 한국전자통신연구원

Inventor： 박현서 ,  신재승 ,  김경숙 ,  신연승

IPC: H04B7/26

CPC classification number: H04L1/0047 ,  H04B7/155 ,  H04L1/0009 ,  H04L1/001

Abstract: PURPOSE: An aggregation level management device for control channel at a base station, a decoding device for control channel at a mobile terminal and a decoding method for control channel over a mobile communication system are provided to decode only control information relevant to aggregation level received among control information candidate through downlink control channel in the mobile terminal, thereby preventing unnecessary PDCCH(Physical Downlink Control Channel) decoding attempt. CONSTITUTION: A BS(Base Station) determines aggregation level of PDCCH(Physical Downlink Control Channel)(S310). The BS transmits the determined aggregation level to a mobile terminal(S320). If the determined aggregation level is received to the mobile terminal, the mobile terminal decodes only control information relevant to a received aggregation level among control information candidates(S330). The control information candidate is received through the PDCCH.

Abstract translation: 目的：提供一种用于基站控制信道的聚合级别管理装置，用于移动终端的控制信道的解码装置和用于移动通信系统上的控制信道的解码方法，用于仅解码与所接收的聚合级别相关的控制信息 控制信息候补通过移动终端中的下行链路控制信道，从而防止不必要的PDCCH（物理下行链路控制信道）解码尝试。 规定：BS（基站）确定PDCCH（物理下行链路控制信道）的聚合级别（S310）。 BS将确定的聚合级别发送到移动终端（S320）。 如果确定的聚合级别被接收到移动终端，则移动终端仅在控制信息候选中解码与接收到的聚合级别相关的控制信息（S330）。 通过PDCCH接收控制信息候选。

公开(公告)号：KR1020100058146A

公开(公告)日：2010-06-03

申请号：KR1020080116862

申请日：2008-11-24

Applicant: 한국전자통신연구원

Inventor： 김경숙 ,  신재승 ,  박현서 ,  박용직 ,  신연승

IPC: H04B7/26 ,  H04L12/66

CPC classification number: H04W72/0406 ,  H04L61/1529

Abstract: PURPOSE: A method for allocating a physical uplink shared channel on a VoIP service is provided to prevent the waste of resource caused by unnecessary resource allocation by judging the resource allocation. CONSTITUTION: A base station receives from an MS(Mobile Station) a resource allocation request for uplink data transmission(S520), and recognizes an LCG(Logical Channel Group) identifier of a buffer state report within the resource allocation request(S530). If VoIP(Voice over Internet Protocol) uplink scheduling request buffer size is equal to or larger than the amount of transmission data of preset VoIP service, the base station allocates a PUSCH(Physical Uplink Shared Channel) to the terminal(S540,S550).

Abstract translation: 目的：提供一种在VoIP业务上分配物理上行共享信道的方法，以通过判断资源分配来防止由不必要资源分配引起的资源浪费。 构成：基站从MS（移动站）接收上行链路数据发送的资源分配请求（S520），并识别资源分配请求内的缓冲状态报告的LCG（逻辑信道组）标识符（S530）。 如果VoIP（因特网协议语音）上行调度请求缓冲器大小等于或大于预设VoIP服务的传输数据量，则基站向终端分配PUSCH（物理上行链路共享信道）（S540，S550）。

公开(公告)号：KR100960116B1

公开(公告)日：2010-05-27

申请号：KR1020070130344

申请日：2007-12-13

Applicant: 한국전자통신연구원

Inventor： 김경숙 ,  신경철

IPC: H04B7/26

CPC classification number: H04W36/26

Abstract: 본 발명은 이동통신 네트워크(network)에서의 핸드오버(handover) 방법, 그를 이용한 이동통신 단말기 및 무선 네트워크 시스템에 관한 것이다. 본 핸드오버 방법은, 사용자 단말기로부터 무선 서비스별 품질 요구 정보를 수신하는 단계; 무선 서비스의 품질 요구 정보에 가장 부합되는 무선 네트워크를 핸드오버 대상으로 결정하는 단계; 및 핸드오버 대상으로 결정된 무선 네트워크 기지국에 핸드오버를 요청하는 단계를 포함하는 것을 특징으로 한다.
본 발명에 따른 핸드오버 방법에 의하면, 사용자가 이용하는 서비스의 품질과 무선 네트워크의 특성을 고려하여 서비스 품질 별 최적의 무선 네트워크로의 핸드오버를 결정함으로써, 불필요한 핸드오버의 수행으로 인한 서비스 단절을 방지하고, 무선 네트워크의 트래픽(traffic)을 효과적으로 분산하여 시스템의 과부하를 방지할 수 있다.
이동 통신, 단말기, 베어러(bearer), 핸드오버(handover)

公开(公告)号：KR1020090062877A

公开(公告)日：2009-06-17

申请号：KR1020070130344

申请日：2007-12-13

Applicant: 한국전자통신연구원

Inventor： 김경숙 ,  신경철

IPC: H04B7/26

CPC classification number: H04W36/26 ,  H04W28/0252 ,  H04W28/08 ,  H04W36/30

Abstract: A handover method in a mobile communication network, the mobile communication terminal and a wireless network system thereof are provided to determine the optimized handover to a wireless network per service quality, thereby preventing service disconnection due to unnecessary handover. A signal strength detector detects respective receiving signal strengths of wireless networks(300). A quality requirement measuring unit measures a service quality request about each wireless service that a terminal can use(310). The first data transmitting and receiving unit transmits signal strength information per a wireless network and information about the measured service quality request to the first base station(320). The bearer setting unit performs a bearer setting work for the first wireless service.

Abstract translation: 提供移动通信网络中的切换方法，移动通信终端及其无线网络系统，以确定每个服务质量对无线网络的优化切换，从而防止由于不必要的切换导致的服务断开。 信号强度检测器检测无线网络（300）的相应接收信号强度。 质量要求测量单元测量关于终端可以使用的每个无线服务的服务质量请求（310）。 第一数据发送和接收单元将无线网络的信号强度信息和关于所测量的服务质量请求的信息发送到第一基站（320）。 承载设定单元对第一无线业务进行承载设定工作。