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    • 3. 发明授权
    • PRBS 자동 변경 방법, PRBS를 자동 변경하는 직접 대역 확산 방식 송신 방법, 수신 방법 및 송수신 방법
    • KR101923523B1
    • 2018-11-29
    • KR1020170122271
    • 2017-09-22
    • 한화시스템 주식회사
    • 엄재형
    • H04B1/7073
    • PRBS 자동변경방법, PRBS를자동변경하는직접대역확산방식송/수신방법및 송수신방법이개시된다. 직접대역확산방식송신장치가 PRBS(pseudo random binary sequence)를이용하여데이터를직접대역확산(direct sequence spread spectrum) 방식에의한확산및 변조(modulation)를수행하여상기 PRBS의시드(seed)에미리대응되는프리앰블(preamble)과함께신호를직접대역확산방식수신장치로송신하는단계; 상기직접대역확산방식수신장치가상기직접대역확산방식송신장치로부터신호를수신하고, 수신된신호의프리앰블을미리구비된다수의프리앰블세트(preamble set)와상호상관(cross correlation)을수행하고, 상기프리앰블세트중에서상호상관에의한상관관계가가장높은프리앰블에미리대응되는시드를검출하고검출된시드에대응되는 PRBS를이용하여역확산및 복조를수행하는단계를구성한다. 상술한 PRBS 자동변경방법, PRBS를자동변경하는직접대역확산방식송/수신방법및 송수신방법에의하면, 수신단의동기화과정에서 PRBS의시드(seed)에미리대응되는프리앰블을미리정해진여러프리앰블세트와상호상관(correlation)을수행하여찾아내도록구성됨으로써, 시드를안전하게수신단에전달하고수시로 PRBS를변경하여통신보안성을안전하게높일수 있는효과가있다.
    • 5. 发明授权
    • PRBS 자동 변경 장치, PRBS를 자동 변경하는 직접 대역 확산 방식 송/수신 장치 및 송수신 시스템
    • KR101923522B1
    • 2018-11-29
    • KR1020170122270
    • 2017-09-22
    • 한화시스템 주식회사
    • 엄재형
    • H04B1/707
    • PRBS 자동변경장치, PRBS를자동변경하는직접대역확산방식송/수신장치및 송수신시스템이개시된다. 소정의 PRBS(pseudo random binary sequence)를이용하여데이터를직접대역확산(direct sequence spread spectrum) 방식에의한확산및 변조(modulation)를수행하여상기 PRBS의시드(seed)에미리대응되는프리앰블(preamble)과함께신호를송신하는직접대역확산방식송신장치; 상기직접대역확산방식송신장치로부터신호를수신하고, 수신된신호의프리앰블을미리구비된다수의프리앰블세트(preamble set)와상호상관(cross correlation)을수행하고, 상기프리앰블세트중에서상호상관에의한상관관계가가장높은프리앰블에미리대응되는시드를검출하고검출된시드에대응되는 PRBS를이용하여복조를수행하는직접대역확산방식수신장치를구성한다. 상술한 PRBS 자동변경장치, PRBS를자동변경하는직접대역확산방식송/수신장치및 송수신시스템에의하면, 수신단의동기화과정에서 PRBS의시드(seed)에미리대응되는프리앰블을미리정해진여러프리앰블세트와상호상관(correlation)을수행하여찾아내도록구성됨으로써, 시드를안전하게수신단에전달하고수시로 PRBS를변경하여통신보안성을안전하게높일수 있는효과가있다.
    • 6. 发明授权
    • 중첩 셀 환경에서 하향 링크의 간섭 신호 제거 장치 및 방법
    • 用于消除覆盖层中下行链路信号的系统和方法
    • KR101026143B1
    • 2011-04-06
    • KR1020100112816
    • 2010-11-12
    • 한화시스템 주식회사
    • 엄재형정성헌
    • H04W52/24H04B7/26
    • H04W52/243H04W52/30
    • PURPOSE: A system for cancelling an interference signal of a downlink in an overlay cell environment and is provided to remove an interference signal between transmission signals using a zero forcing method. CONSTITUTION: A first and a second terminals exist in an overlay cell of a first and a second base stations. A downlink signal receiving unit(131) receives a first and a second signals which are transmitted to the first and the second terminals from the first and the second base stations. A power limit signal generating unit(132) generates a first power limit signal and a second power limit signal. A power limit signal transmitting unit(133) respectively transmits the first power limit signal and the second power limit signal to the first and the second base stations.
    • 目的:一种用于在覆盖小区环境中消除下行链路的干扰信号的系统,并且被提供以使用零强制方法去除传输信号之间的干扰信号。 构成:第一和第二终端存在于第一和第二基站的覆盖单元中。 下行链路信号接收单元(131)从第一和第二基站接收发送到第一和第二终端的第一和第二信号。 功率限制信号生成单元(132)产生第一功率限制信号和第二功率限制信号。 功率限制信号发送单元(133)分别将第一功率限制信号和第二功率限制信号发送到第一和第二基站。
    • 7. 发明授权
    • 다중 셀 OFDMA 시스템에서 분산적 자원 할당을 위한방법
    • 在多小区OFDMA系统中分配分配资源的方法
    • KR100848655B1
    • 2008-07-28
    • KR1020070095300
    • 2007-09-19
    • 한화시스템 주식회사
    • 엄재형정성헌조형원
    • H04L27/26H04B7/26
    • H04L5/0007H04L27/2601H04W72/10
    • A method for allocating distributed resources in a multi-cell OFDMA system is provided to minimize violation odds of an inter-terminal QoS(Quality of Service) by decreasing a variation in a CCI(Co-Channel Interference) due to generation of the same co-channel groups. A multi-cell OFDMA(Orthogonal Frequency Division Multiple Access) system includes a base station controller(300), base stations(310,320,330), and at least one terminal(340,342,344,346,348,350). The terminal communicates with the base station corresponding to a cell of its own. The base stations are controlled by one base station controller. The base station controller groups frames for respective base stations according to transmission start times and transmits group information to the corresponding base stations. The base stations receive the group information from the base station controller and check the received group information. The base station transmits the frame to the corresponding terminal at the timing corresponding to the checked group information. When sub-channels are allocated to the base stations, power control processes are performed on the respective allocated sub-channels, such that required transmission ratios for respective terminals are satisfied.
    • 提供了一种用于在多小区OFDMA系统中分配分布式资源的方法,以通过减少由于生成相同的组而产生的CCI(同频道干扰)的变化来最小化终端间QoS(服务质量)的违规概率 通道组。 多小区OFDMA(正交频分多址)系统包括基站控制器(300),基站(310,320,330)和至少一个终端(340,342,344,346,348,350)。 终端与对应于其自己的小区的基站进行通信。 基站由一个基站控制器控制。 基站控制器根据传输开始时间对各个基站进行帧分组,并将组信息发送到对应的基站。 基站从基站控制器接收组信息,并检查接收的组信息。 基站在对应于所检查的组信息的定时向相应的终端发送该帧。 当子信道被分配给基站时,对各个分配的子信道执行功率控制处理,使得满足各个终端所需的传输比。
    • 10. 发明授权
    • 무선 통신 시스템에서 레인징 부호를 부반송파에 매핑하는 방법 및 장치
    • 将测距码映射到SUBCARRIERS的方法和装置
    • KR100979944B1
    • 2010-09-06
    • KR1020090059199
    • 2009-06-30
    • 한화시스템 주식회사
    • 엄재형김영재
    • H04L27/26
    • H04W72/0453
    • PURPOSE: A method and an apparatus for mapping ranging codes into subcarriers are provided to reduce calculation by directly mapping a ranging code to a physical tile corresponding to a masked memory index without comparison calculation. CONSTITUTION: The whole memory is comprised of a memory block which is same number as total tiles. The memory block having the same index as physical tile index is determined at the whole memory by certain value. The ranging code is mapped to the tiles corresponding to the index of the memory block which is set by a certain value. In a process of setting the memory block with a certain value, the value of the memory block having the same index as physical tile indexes is set by 1.
    • 目的:提供一种用于将测距码映射到子载波中的方法和装置,用于通过将测距码直接映射到与掩蔽的存储器索引相对应的物理片而不进行比较计算来减少计算。 构成:整个存储器由一个与总的瓦片数相同的内存块组成。 具有与物理瓦片索引相同的索引的存储器块在整个存储器处被确定一定的值。 测距代码被映射到与由某个值设置的存储器块的索引相对应的瓦片。 在将存储块设置为一定值的过程中,具有与物理块索引相同的索引的存储块的值设置为1。