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公开(公告)号：KR101372125B1
公开(公告)日：2014-03-07
申请号：KR1020120014889
申请日：2012-02-14
Applicant: 고려대학교 산학협력단
IPC: H04B7/14
CPC classification number: H04W72/042 , H04B7/15 , H04B7/15528 , H04B7/2606 , H04W16/26 , H04W84/047 , H04W92/045
Abstract: 본 발명은 공유 중계기(Shared Relay Station: SRS)를 사용하여 유선 백본 망을 통한 데이터의 전송 지연 시간을 최소화시키기 위한 전송 기법에 관한 것으로서, 공유 중계기를 이용하여 데이터 및 제어 정보들을 전송하는데 있어, a) 둘 이상의 기지국(Base Station: BS)이 하나의 중계기를 공유하기 위한 절차, b) 둘 이상의 기지국과 각 기지국에 접속된 단말들, 그리고 하나의 중계기를 통한 데이터 전송 절차를 포함한다. 본 발명에 따르면 기존 셀룰러 망에서 유선 백본망을 통해 코어 네트워크의 제어기(controller)로 전송되었던 데이터들이 공유 중계기를 통해 무선 링크로 기지국 또는 단말들로 전송됨으로써 기존의 셀룰러 망에 비해 데이터 전송 지연 시간을 최소화할 수 있다.
Abstract translation: 本发明涉及用于使用共享中继站（SRS）通过有线骨干网络使数据传输延迟时间最小化并且在使用共享中继器传输数据和控制信息的传输技术中， ）两个或更多基站（BS）共享一个中继器的过程，b）通过两个或更多个基站，连接到每个基站的终端和一个中继器发送数据的过程。 根据本发明，从常规蜂窝网络通过有线骨干网络发送到核心网络的控制器的数据通过共享中继器通过无线链路被发送到基站或多个终端，由此减少数据传输延迟时间 可以最小化。
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公开(公告)号：KR1020120139468A
公开(公告)日：2012-12-27
申请号：KR1020110059287
申请日：2011-06-17
Applicant: 고려대학교 산학협력단
CPC classification number: H04W72/1278 , H04L12/2861 , H04W4/06
Abstract: PURPOSE: A point-to-multipoint wireless transmission system and method thereof are provided to individually store transmission and reception data in a storage device of a transmission end and a reception end. CONSTITUTION: A transmission end(200) stores transmission data. A reception end(300) stores reception data. The transmission end determines whether the transmission data is transmitted. When the transmission data is transmitted, the transmission end transmits scheduling information corresponding to the transmission data to the reception end. The reception end extracts the reception data corresponding to the scheduling information. [Reference numerals] (200) Transmission end; (301,303) Reception end 1; (AA) Reception end n
Abstract translation: 目的：提供一种点对多点无线传输系统及其方法，用于将发送和接收数据单独存储在发送端和接收端的存储设备中。 构成：发送端（200）存储发送数据。 接收端（300）存储接收数据。 发送端确定发送数据是否被发送。 当发送数据被发送时，发送端将对应于发送数据的调度信息发送到接收端。 接收端提取对应于调度信息的接收数据。 （附图标记）（200）传送端; （301,303）接待端1; （AA）接待端n
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公开(公告)号：KR101070241B1
公开(公告)日：2011-10-06
申请号：KR1020100002004
申请日：2010-01-08
Applicant: 고려대학교 산학협력단
CPC classification number: Y02D70/00
Abstract: 본발명은이동통신시스템에서의이종망간에핸드오버의시기를적응적으로결정하는방법에관한것이다. 본발명에따르면현 시점에서두 유틸리티펑션(utility function)이교차할때까지의예상되는잔류시간과핸드오버지연시간을비교하여실제핸드오버가일어나는시점을결정하고불필요한스캐닝을실시하지않도록함으로써이종망간에단말이핸드오버지연시간으로인한네트워크시스템의성능저하및 단말의전력소모를최소화할수 있다.
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公开(公告)号：KR1020110081721A
公开(公告)日：2011-07-14
申请号：KR1020100002024
申请日：2010-01-08
Applicant: 고려대학교 산학협력단
Abstract: PURPOSE: A resource allocation method in a mobile communication system is provided to reallocate resources to other base stations without allocating the resource to a base station which does not use a handover gateway to prevent a waste of resources. CONSTITUTION: A serving BS(Base Station) performs initialization(S1501). An HG(Handover Gateway) divides relay section resources by time or frequency and allocates a fixed number of sub channels(S1503). The HG defines the ratio of resources actually used in the allocated resource of a relay section(S1505). If predetermined conditions satisfy, the HG performs adaptive bandwidth reallocation(S1507).
Abstract translation: 目的：提供移动通信系统中的资源分配方法，以将资源重新分配给其他基站，而不将资源分配给不使用切换网关的基站，以防止浪费资源。 构成：服务BS（基站）执行初始化（S1501）。 HG（切换网关）按照时间或频率划分中继段资源，并分配固定数量的子信道（S1503）。 HG定义了在中继部分的分配资源中实际使用的资源的比率（S1505）。 如果预定条件满足，则HG执行自适应带宽重分配（S1507）。
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Patent Agency Ranking
公开(公告)号：KR1020110051482A
公开(公告)日：2011-05-18
申请号：KR1020090108086
申请日：2009-11-10
Applicant: 고려대학교 산학협력단
CPC classification number: H04B1/0032 , H04B1/0025
Abstract: PURPOSE: A method of bandpass sampling using single sideband converting is provided to convert plural RF bandpass signals into a signal having a single sideband spectrum. CONSTITUTION: A method of bandpass sampling using single sideband converting comprises the steps of: selecting a desirable band(S10); converting the bandpass filtered signal into a complex signal; forming a single sideband signal by adding the filtered signal and the complex signal(S20); obtaining an effective sampling frequency domain by sampling the bandpass(S30, S40); and selecting the minimum frequency among the effective sampling frequency domains into a sampling frequency(S50, S60).
Abstract translation: 目的：提供使用单边带转换的带通采样方法，将多个RF带通信号转换成具有单边带频谱的信号。 构成：使用单边带转换的带通采样的方法包括以下步骤：选择期望的频带（S10）; 将带通滤波的信号转换成复信号; 通过将滤波后的信号和复数信号相加来形成单边带信号（S20）; 通过对带通采样来获得有效采样频域（S30，S40）; 并将有效采样频域内的最小频率选择为采样频率（S50，S60）。
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公开(公告)号：KR1020110051479A
公开(公告)日：2011-05-18
申请号：KR1020090108083
申请日：2009-11-10
Applicant: 고려대학교 산학협력단
CPC classification number: H04L47/16 , H04B7/155 , H04L27/3494 , H04L2025/0342
Abstract: PURPOSE: A signal transmission method using constellation rearrangement in a relay system is provided to reduce the reliability difference between bits constituting signal points. CONSTITUTION: A transmission terminal transfers a signal to plural relay nodes, and the plural relay nodes maps the transferred signal to constellation. The plural relay nodes transfer the mapped signal to the reception terminal. The transmission terminal combines the mapped signals with the constellation received from the plural relay nodes.
Abstract translation: 目的：提供一种在中继系统中使用星座重排的信号传输方法，以减少构成信号点的比特之间的可靠性差异。 构成：发送终端向多个中继节点传送信号，多个中继节点将传送的信号映射到星座图。 多个中继节点将映射的信号传送到接收终端。 发送终端将映射的信号与从多个中继节点接收的星座组合。
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公开(公告)号：KR1020100128129A
公开(公告)日：2010-12-07
申请号：KR1020090046590
申请日：2009-05-27
Applicant: 고려대학교 산학협력단
CPC classification number: H04B7/15592 , H04B17/40 , H04W84/04
Abstract: PURPOSE: A dynamic topology control method for multi-hop relaying in a cellular TDD-OFDMA system is provided to improve the yield performance and the quality of a multi hop relay link by controlling interference in consideration of a traffic load for each relay link. CONSTITUTION: Through the measurement of the link of an SINR(Signal to Interference plus Noise Ratio) An RS(Relay Station) between an RS(Relay Station) and a BS(Base Station), a relay station having high connection rate with a base station are selected. The set of relay stations which belong to a layer 1 is formed(S701), and the relay stations which may belong to the layer 1 is additionally selected(S705). The relay stations having the highest connection rate with the layer 1 are selected. The set of relay stations which belong to layer 2 is formed(S709). In the layer 2, the set of relay stations having lower RS is formed(S711).
Abstract translation: 目的：提供一种在蜂窝TDD-OFDMA系统中进行多跳中继的动态拓扑控制方法，通过考虑每个中继链路的业务负载来控制干扰，提高多跳中继链路的产出性能和质量。 构成：通过对RS（中继站）与BS（基站）之间的RS（中继站）和RS（中继站）之间的链路进行测量，连接速率与基站 车站被选中。 形成属于层1的中继站组（S701），另外选择属于层1的中继站（S705）。 选择与层1具有最高连接速率的中继站。 形成属于层2的中继站组（S709）。 在层2中，形成具有较低RS的一组中继站（S711）。
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公开(公告)号：KR1020080107155A
公开(公告)日：2008-12-10
申请号：KR1020070055118
申请日：2007-06-05
Applicant: 삼성전자주식회사 , 고려대학교 산학협력단
IPC: H04B7/26
CPC classification number: H04W36/0033 , H04W12/06 , H04W36/08
Abstract: A handover system in a wireless mobile communication system and a method thereof are provided to minimize the service disconnection time due to the handover of a mobile station by improving a handover procedure. The handover method of a mobile station in a wireless mobile communication system comprises the following steps of: transmitting a handover instruction message(302); receiving a ranging response message which includes authentication information required when the mobile station authenticates a target base station(304); receiving resources for the high-speed ranging from the target base station(306); and sending a ranging response ack message which includes authentication information required when the target base station authenticates the mobile station, to the target base station(308).
Abstract translation: 提供无线移动通信系统中的切换系统及其方法，以通过改进切换过程来最小化由于移动台的切换导致的业务断开时间。 移动台在无线移动通信系统中的切换方法包括以下步骤：发送切换指令消息（302）; 接收测距响应消息，其包括当所述移动台认证目标基站（304）时所需的认证信息; 从目标基站（306）接收用于高速范围的资源; 并向所述目标基站（308）发送包括所述目标基站认证所述移动台所需的认证信息的测距响应确认消息。
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公开(公告)号：KR100810661B1
公开(公告)日：2008-03-07
申请号：KR1020070012899
申请日：2007-02-07
Applicant: 삼성전자주식회사 , 고려대학교 산학협력단
IPC: H04L12/28
Abstract: A method and an apparatus for allocating radio resources in a wireless sensor network are provided to maintain a yield of the wireless sensor network and data transmission delay performance and significantly improve lifetime of the network. A method or allocating radio resources in a wireless sensor network comprises the following steps of: receiving a signal for requesting radio resource allocation from one of sensors configuring the wireless sensor network(S400); comparing sizes of residual energy for each zone to which the sensor transmitting the signal belongs(S401); determining an order from a zone having the largest size of the residual energy to a zone having the smallest size according to the comparison result(S402); and allocating time slots to a sensor of the zones according to the determined order when transmitting a frame for radio resource allocation(S403).
Abstract translation: 提供了一种在无线传感器网络中分配无线电资源的方法和装置，以保持无线传感器网络的收益和数据传输延迟性能，并显着提高网络的寿命。 无线传感器网络中的方法或分配无线电资源包括以下步骤：从配置无线传感器网络的传感器之一接收请求无线电资源分配的信号（S400）; 比较发送信号的传感器所属的每个区域的剩余能量的大小（S401）; 根据比较结果确定从具有最大残余能量的区域到具有最小尺寸的区域的顺序（S402）; 以及当发送用于无线电资源分配的帧时，根据确定的顺序将时隙分配给所述区域的传感器（S403）。
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