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公开(公告)号：KR1020140093325A
公开(公告)日：2014-07-28
申请号：KR1020130004069
申请日：2013-01-14
Applicant: 한국전자통신연구원
IPC: H04W24/02
CPC classification number: H04L5/006 , H04L5/0023 , H04L5/0035 , H04L5/0085 , H04L27/0006
Abstract: A cognitive radio apparatus according to an embodiment comprises an estimation module for generating a channel estimation signal transmitted to a random reception apparatus located in the random channel when the random channel is selected among multiple channels to execute communication in a cognitive radio network; a communication module for transmitting the channel estimation signal to the random reception apparatus and for receiving a channel response signal from the random reception apparatus; and a control module for controlling the communication module to transmit a communication signal set for the random channel or a variable communication signal for converting the communication signal to the random reception apparatus when a result on which the random channel is located in a deep fading section is determined based on the channel response signal.
Abstract translation: 根据实施例的认知无线电设备包括估计模块，用于当在多个信道中选择随机信道以在认知无线电网络中执行通信时，生成发送到位于随机信道中的随机接收设备的信道估计信号; 通信模块，用于将所述信道估计信号发送到所述随机接收装置，并用于从所述随机接收装置接收信道响应信号; 以及控制模块，用于当所述随机信道位于深衰落部分中的结果为止时，控制所述通信模块发送用于所述随机信道的通信信号集或用于将所述通信信号转换到所述随机接收装置的可变通信信号， 基于信道响应信号确定。
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公开(公告)号：KR1020140083500A
公开(公告)日：2014-07-04
申请号：KR1020120153349
申请日：2012-12-26
Applicant: 한국전자통신연구원
CPC classification number: H04B1/04 , H04B1/0067 , H04H20/61 , H04N5/38 , H04N21/43637 , H04W52/242
Abstract: The present invention provides an apparatus and a method for controlling transmission output of a wireless device that automatically controls transmission output of a wireless device using a TV band according to a frequency band. The present invention is configured to include a frequency band selection unit for selecting frequency bands to be compared; a radio wave decrement calculation unit for calculating a radio wave decrement for each of the selected frequency bands; and a transmission output control unit for automatically controlling the transmission output of the wireless device using the TV band based on a difference value between the calculated radio wave decrements. According to the present invention, a service area can be widened while sufficiently protecting a service provided in the TV band, and frequency resources can be used efficiently.
Abstract translation: 本发明提供了一种用于控制无线设备的传输输出的装置和方法，其根据频带自动控制使用TV频带的无线设备的传输输出。 本发明被配置为包括用于选择要比较的频带的频带选择单元; 无线电波减量计算单元，用于计算每个所选频带的无线电波减量; 以及发送输出控制单元，用于基于所计算的无线电波减量之间的差值自动控制使用TV频带的无线设备的发送输出。 根据本发明，可以在充分保护TV频带中提供的服务的同时扩大服务区域，并且可以有效地使用频率资源。
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公开(公告)号：KR1020130097898A
公开(公告)日：2013-09-04
申请号：KR1020120019538
申请日：2012-02-27
Applicant: 한국전자통신연구원
CPC classification number: H04B1/403
Abstract: PURPOSE: A wideband transmitting/receiving device for a multiband is provided to obtain excellent channel-to-ratios in all channels. CONSTITUTION: A wideband transmitting/receiving device for a multiband includes a local oscillator (210), a level detector (260), an analog/digital (A/D) converter (270), a controller (280), and a distributor (230). The local oscillator generates a local oscillation signal. The level detector measures the size of the local oscillation signal. The A/D converter converts the measured size of the local oscillation signal into a digital signal. The controller controls a variable amplifier (220) according to the measured size of the local oscillation signal. The distributor respectively applies the local oscillation signal of which the size is regularly maintained to the local oscillation (LO) inputs of frequency converters in a transmitting part and receiving part. [Reference numerals] (210) Local oscillator; (220) Variable amplifier; (230) Distributor; (241,242) Low pass filter; (251,252) Switch; (260) Level detector; (280) Controller; (AA) Transmitting LO; (BB) Receiving LO
Abstract translation: 目的：提供用于多频带的宽带发送/接收设备，以在所有通道中获得出色的通道比。 构成：用于多频带的宽带发送/接收装置包括本地振荡器（210），电平检测器（260），模拟/数字（A / D）转换器（270），控制器（280）和分配器 230）。 本地振荡器产生本地振荡信号。 电平检测器测量本地振荡信号的大小。 A / D转换器将本地振荡信号的测量尺寸转换为数字信号。 控制器根据本地振荡信号的测量尺寸来控制可变放大器（220）。 分配器分别在发送部分和接收部分中将规模维持的本地振荡信号施加到变频器的本地振荡（LO）输入。 （附图标记）（210）本地振荡器; （220）可变放大器; （230）经销商; （241,242）低通滤波器; （251,252）开关; （260）液位探测器; （280）控制器; （AA）发送LO; （BB）接受LO
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公开(公告)号：KR1020130068644A
公开(公告)日：2013-06-26
申请号：KR1020110135944
申请日：2011-12-15
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A device for reducing noise in a DC power supply is provided to prevent an error occurrence due to a spur component in a spectrum sensing receiver, and to improve a signal to noise ratio of a transceiver by removing a direct current noise of an SMPS(Switching Mode Power Supplier) by using a circuit for eliminating noise. CONSTITUTION: A device for reducing noise in DC power supply comprises a ferrit bead(41) removing after converting a noise included in a DC voltage inputted from an SMPS into heat; and a low frequency filter(43) removing a low frequency noise of the DC voltage by having an inductor and a capacitor.
Abstract translation: 目的：提供一种用于降低直流电源噪声的装置，以防止由于频谱感测接收机中的支线分量引起的错误发生，并通过消除SMPS的直流噪声来提高收发信机的信噪比 （开关电源供应商）通过使用消除噪声的电路。 构成：用于降低直流电源噪声的装置包括：将从SMPS输入的直流电压中包含的噪声转换成热量之后，去除铁氧体电极（41）; 和低频滤波器（43）通过具有电感器和电容器来去除直流电压的低频噪声。
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25.发明公开인지 무선 통신 시스템에서 데이터 송수신용 안테나 및 스펙트럼 센싱용 안테나를 구비한 통신 장치 및 그 통신 장치의 안테나 스위칭 방법 无效具有用于发送/接收用于感知无线电通信系统中的感测频谱的数据和天线的天线的通信装置，以及用于在其中切换天线的方法
公开(公告)号：KR1020130031983A
公开(公告)日：2013-04-01
申请号：KR1020110095593
申请日：2011-09-22
Applicant: 한국전자통신연구원
CPC classification number: H04B7/0825 , H04B7/0808 , H04B7/0814
Abstract: PURPOSE: A communication device including a spectrum sensing antenna and a data transceiving antenna in a cognitive radio communication system and an antenna switching method in the communication device are provided to select an optimal antenna from antennas according to the quality of a currently performing channel. CONSTITUTION: A quality measuring unit(851) measures information related to the quality of a channel different from a channel between a communication device and another communication device based on data received from the communication device through a primary antenna or a secondary antenna. A determining unit(852) determines whether the channel has a better state than another channel based on the measured information. If the state of the channel is not better than another channel based on the determined result, a control unit(853) controls a switch to mutually change connection targets of the primary antenna and the secondary antenna. [Reference numerals] (810) Primary antenna; (820) Secondary antenna; (830) Data transceiver; (840) Spectrum generator; (850) Switching processor; (851) Quality measuring unit; (852) Determining unit; (853) Control unit;
Abstract translation: 目的：提供一种在认知无线电通信系统中包括频谱感测天线和数据收发天线的通信设备以及通信设备中的天线切换方法，以根据当前正在进行的信道的质量从天线中选择最佳天线。 构成：质量测量单元（851）基于通过主天线或辅助天线从通信设备接收的数据来测量与通信设备与另一通信设备之间的信道不同的信道质量的信息。 确定单元（852）基于所测量的信息来确定信道是否具有比另一信道更好的状态。 如果基于所确定的结果，信道的状态不比另一信道更好，则控制单元（853）控制开关以相互改变主天线和次天线的连接目标。 （附图标记）（810）主天线; （820）二次天线; （830）数据收发器; （840）频谱发生器; （850）切换处理器; （851）质量测量单位; （852）确定单位; （853）控制单元;
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Patent Agency Ranking
公开(公告)号：KR101232017B1
公开(公告)日：2013-02-08
申请号：KR1020090037576
申请日：2009-04-29
Applicant: 한국전자통신연구원
CPC classification number: H04L5/0023 , H04L1/0041 , H04L25/03343 , H04L27/2636 , H04L27/2647 , H04L2025/03426
Abstract: 본 발명은 단일 캐리어 주파수 분할 다중접속 방식을 이용하는 이동통신시스템에 다중안테나를 적용하는 기술에 관한 것이다.
본 발명은 변조된 심볼을 복수의 레이어에 맵핑하는 레이어 맵퍼, 상기 각 레이어에 맵핑된 심볼을 복수의 시간 영역 스트림에 균등하게 분할 혼합하는 레이어 쉬프터 및 상기 복수의 시간 영역 스트림을 각각 이산 푸리에 변환(DFT: Discrete Fourier Transform)변환하여 복수의 주파수 영역 스트림을 생성하고, 상기 각 주파수 영역 스트림에 상응하는 안테나를 이용하여 상기 주파수 영역 스트림을 수신 장치로 전송하는 신호 전송부 및 이에 상응하는 수신부를 포함하는 것을 특징으로 하는 전송 장치를 제공한다.
단일 캐리어 주파수 분할 다중 접속, SC-FDMA, OFDM, PAPR-
公开(公告)号：KR101089914B1
公开(公告)日：2011-12-05
申请号：KR1020090043921
申请日：2009-05-20
Applicant: 한국전자통신연구원
Abstract: 무선 통신 시스템에서 전송모드를 스위칭하는 하이브리드 전송 방법을 제안한다. 본 발명의 실시예에 따른 무선 통신 시스템의 기지국에서 전송모드를 스위칭하는 하이브리드 전송 방법은, 셀 내의 단말기들 각각의 단말기 상태를 확인하는 단계; 상기 단말기 상태에 따라 상기 단말기 별로 전송모드를 설정하는 단계; 설정한 상기 전송모드를 상기 단말기들로 제공하는 단계; 및 상기 단말기들과 설정한 상기 전송모드로 통신하는 단계를 포함한다.
하이브리드 전송, 전송모드, SC-FDMA, 다중 SC-FDMA, OFDMA-
公开(公告)号：KR1020110082489A
公开(公告)日：2011-07-19
申请号：KR1020110002855
申请日：2011-01-11
Applicant: 한국전자통신연구원
CPC classification number: H04L5/0055 , H04L1/0027 , H04L1/0073 , H04L1/1614 , H04L1/1671 , H04L1/1854 , H04L1/1893 , H04L5/0001 , H04L5/001 , H04L5/0023 , H04L5/0048 , H04L5/0082 , H04L5/0094 , H04W72/0406 , H04W72/1289 , H04W72/042 , H04W72/12
Abstract: PURPOSE: Carrier aggregation in a wireless communication system is provided to allocate wireless resources using the corresponding relation between a downlink and an uplink, thereby transmitting data using an allocated wireless resource. CONSTITUTION: A receiving unit(910) receives control information and data using a plurality of downlink carrier components. The receiving unit receives scheduling information about the data using a primary carrier component. A controller(920) determines an uplink channel element included in the uplink carrier component. A transmission unit(930) transmits receiving checking information about the data to the base station using the determined uplink channel element.
Abstract translation: 目的：提供无线通信系统中的载波聚合，使用下行链路和上行链路之间的对应关系分配无线资源，从而使用分配的无线资源发送数据。 构成：接收单元（910）使用多个下行链路载波分量接收控制信息和数据。 接收单元使用主载波分量接收关于数据的调度信息。 控制器（920）确定包括在上行链路载波分量中的上行链路信道元素。 发送单元（930）使用所确定的上行链路信道单元向基站发送关于该数据的接收检查信息。
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公开(公告)号：KR1020110082475A
公开(公告)日：2011-07-19
申请号：KR1020100132894
申请日：2010-12-22
Applicant: 한국전자통신연구원
CPC classification number: H04L1/0023 , H04B7/0413 , H04W88/10
Abstract: PURPOSE: A transmitting method and base station determining the same are provided to transceive an uplink signal in a wireless communication system. CONSTITUTION: A terminal information confirming unit(212) confirms information about the transmission power of a terminal. The terminal determines a first mode in case there is no restriction for transmission power. The terminal determines a second mode in case there is restriction for transmission power. A mode determining unit(214) transmits mode information to the terminal. A first mode transmits L1/L2 control information through a PUCCH(Physical Uplink Control Channel).
Abstract translation: 目的：提供一种发送方法和确定该方法的基站以在无线通信系统中收发上行链路信号。 构成：终端信息确认单元（212）确认关于终端的发送功率的信息。 在发送功率没有限制的情况下，终端确定第一模式。 终端在传输功率受到限制的情况下确定第二模式。 模式确定单元（214）向终端发送模式信息。 第一模式通过PUCCH（物理上行链路控制信道）发送L1 / L2控制信息。
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公开(公告)号：KR1020110081110A
公开(公告)日：2011-07-13
申请号：KR1020110001958
申请日：2011-01-07
Applicant: 한국전자통신연구원
CPC classification number: H04L1/1854 , H04L1/003 , H04L1/1861 , H04L5/0055 , H04W72/04
Abstract: PURPOSE: A method for transmitting ACK/NACK information with an UL physical control channel is provided to transmit ACK/NACK information about DL data using an UL CC(Component Carrier). CONSTITUTION: A UE(User Equipment) receives DL data from a BS(Base Station), determines whether the transmission of the DL data succeeds, and creates information about whether the transmission of the DL data succeeds(510). The UE receives information about available radio resources from the BS(520). The UE creates a plurality of radio resource groups(530). The UE selects radio resources out of the radio resource group(540). The UE transmits transmission confirmation information to the BS(550).
Abstract translation: 目的：提供一种使用UL物理控制信道发送ACK / NACK信息的方法，以使用UL CC（分量载波）发送关于DL数据的ACK / NACK信息。 构成：UE（用户设备）从BS（基站）接收DL数据，确定DL数据的传输是否成功，并且创建关于DL数据的传输是否成功的信息（510）。 UE从BS接收关于可用无线电资源的信息（520）。 UE创建多个无线电资源组（530）。 UE从无线资源组中选择无线资源（540）。 UE向BS发送传输确认信息（550）。
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