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公开(公告)号：KR1020140078313A
公开(公告)日：2014-06-25
申请号：KR1020120147547
申请日：2012-12-17
Applicant: 한국전자통신연구원
IPC: H04H20/65
Abstract: The present invention discloses an apparatus and a method for calculating available channels by considering TV band propagation characteristics. The apparatus for calculating available channels considering TV band propagation characteristics according to the present invention includes: a communication module receiving request of usable available channel information from a TV Band Device (TVBD); a regional shape determining unit to determine the shape of a region in which the requested TVBD is located; an available channel calculator to calculate at least one available channel usable at a region in which a corresponding TVBD is located based on a preset protection spacing distance according to the determined shape of the region and to generate and provide an available channel list including the calculated available channel to the TVBD; and a database to store the at least one available channel calculated by TVBDs.
Abstract translation: 本发明公开了一种通过考虑TV频带传播特性来计算可用信道的装置和方法。 根据本发明的考虑TV频带传播特性的用于计算可用信道的装置包括：通信模块，从TV频带设备（TVBD）接收可用的可用频道信息的请求; 区域形状确定单元，用于确定所请求的TVBD所在的区域的形状; 可用信道计算器，用于根据确定的该区域的形状，基于预设的保护间隔距离来计算可在相应的TVBD所在的区域中使用的至少一个可用信道，并生成并提供可用的信道列表，其包括所计算的可用 频道到TVBD; 以及用于存储由TVBD计算的至少一个可用信道的数据库。
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公开(公告)号：KR1020170059089A
公开(公告)日：2017-05-30
申请号：KR1020150162934
申请日：2015-11-20
Applicant: 한국전자통신연구원
IPC: G01R23/02 , G01R29/06 , G01R23/175 , G01R21/127
CPC classification number: H04B1/1027 , H04L27/265 , H04W24/08
Abstract: 본발명은 PIM 발생위치탐지를위한기준신호출력단(또는 PIM 신호출력단)에시간지연모듈을설치하여제어함으로써 PIM 발생위치탐지정확도를 10cm 수준으로획기적으로향상시키고 PIM 유발부품을보다빠르고정확하게유지보수할수 있는 PIM 발생위치탐지장치및 방법에관한것이다.
Abstract translation: 本发明能够基准信号输出端子的安装时间延迟模块（或PIM信号输出），以改善显着10厘米水平的PIM的通过控制和维持快速，准确的PIM造成组件的维护为PIM产生位置检测产生的位置检测精度 更具体地，涉及用于检测PIM生成位置的设备和方法。
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公开(公告)号：KR1020160138645A
公开(公告)日：2016-12-06
申请号：KR1020150072733
申请日：2015-05-26
Applicant: 한국전자통신연구원
Abstract: 본발명의실시예에따른조각대역폭을이용한공존방법은서로다른통신시스템간의공존방법에있어서, 상기서로다른통신시스템의목표자원점유율을미리설정하는단계; 상기서로다른통신시스템이주파수자원중 비어있는조각대역폭을검색하는단계; 및상기비어있는조각대역폭이검색되면, 상기미리정한목표자원점유율에따라점유율이낮은통신시스템에게비어있는조각대역폭에해당하는자원을할당하는단계를포함할수 있다.
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公开(公告)号：KR1020160101440A
公开(公告)日：2016-08-25
申请号：KR1020150023997
申请日：2015-02-17
Applicant: 한국전자통신연구원
CPC classification number: H04W72/1215 , H04W72/1226 , H04W72/082 , H04W72/02 , H04W72/0453 , H04W88/06
Abstract: 본발명은사용자단말의각각서비스모듈에서주파수대역의선택과송신스펙트럼타입의선택을효과적으로수행하여, 비면허대역에서 LTE-U 서비스와 WiFi 서비스등 이기종서비스가신호간섭없이상호공존하도록동시에제공함으로써, 무선통신망의성능을개선할수 있는사용자단말의이기종서비스상호공존을위한장치및 방법에관한것이다.
Abstract translation: 本发明涉及一种用于用户终端的异构业务共存的装置和方法，用于有效地选择用户终端的每个服务模块中的频带和传输频谱的类型，并且同时提供异构业务 作为无授权频带中的LTE-U服务，Wi-Fi服务等，而不会在相互共存之间的信号之间的干扰，从而提高无线通信网络的性能。
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Patent Agency Ranking
公开(公告)号：KR1020150123073A
公开(公告)日：2015-11-03
申请号：KR1020140049502
申请日：2014-04-24
Applicant: 한국전자통신연구원
CPC classification number: H04W16/14
Abstract: 본발명에따른네트워크관리장치는, 주파수공유대역에서가용채널확보를위해우선채널을할당하는네트워크관리장치에있어서, 입력신호에대한수신신호세기를측정하는신호세기측정부; 및상기측정된수신신호세기를근거로미리설정된주파수별 TVBD(TV Band Device)의동일채널및 인접채널에서의사용가능후보채널을확인하고, 상기확인된동일채널및 인접채널에서의사용가능후보채널을근거로상기 TVBD의가용채널을확인하고, 채널재할당이후채널별로예상되는상기 TVBD의가용채널감소개수를산출하고, 상기산출된 TVBD의가용채널감소개수를근거로재할당해야할채널을할당하는제어부;를포함한다.
Abstract translation: 根据本发明的网络管理设备是用于分配优先级信道以确保频率共享频带中的可用信道的网络管理设备。 网络管理装置包括：信号强度测量单元，用于测量输入信号的接收信号强度; 以及控制单元，用于基于所测量的接收信号强度来确定针对每个预定频率的TV频带设备（TVBD）相同或相邻的信道中的可用候选信道，基于可用候选者确认TVBD的可用信道 在经确认的相同信道和相邻信道之后，计算在信道重新分配之后每个信道预期的TVBD的可用信道的减少数量，以及基于所计算的TVBD的可用信道的减少数量来分配要重新分配的信道。
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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：KR101347480B1
公开(公告)日：2014-01-07
申请号：KR1020100034843
申请日：2010-04-15
Applicant: 한국전자통신연구원 , 경희대학교 산학협력단
Abstract: 다중 안테나 OFDM 송신기는 주파수 영역에서의 데이터 심볼들을 복수 개의 부그룹들로 나누는 부그룹 생성부; 상기 복수 개의 부그룹들 각각에 대응하는 시간 영역에서의 부분 신호들을 생성하기 위하여 상기 복수 개의 부그룹들에 대해 개별적으로 고속 푸리에 역변환을 수행하는 IFFT 수행부; 상기 부분 신호들 각각이 복수 개의 송신 안테나들 중 어느 하나로 전송될 수 있도록 상기 부분 신호들의 조합을 이용하여 적어도 둘의 OFDM 신호 후보들을 생성하는 OFDM 신호 후보 생성부; 및 상기 적어도 둘의 OFDM 신호 후보들 중 어느 하나를 선택하는 선택부를 포함한다.
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公开(公告)号：KR101147915B1
公开(公告)日：2012-05-24
申请号：KR1020090027679
申请日：2009-03-31
Applicant: 한국전자통신연구원 , 경희대학교 산학협력단
CPC classification number: H04L1/0028 , H04H20/42 , H04H20/71 , H04L1/0026 , H04L1/1607 , H04L25/0224 , H04L2001/0093
Abstract: A method and apparatus for adaptively transmitting the same data, i.e., multicast/broadcast data, according to channel quality to a receiving group including one or more terminals that request the same service in a wireless network. A base station obtains feedback on channel quality indications (CQIs) from a plurality of terminals, selects a transmission technique that satisfies desired service quality based on the COIs, and transmits data to the terminals included in a receiving group by using the selected transmission technique. The CQIs to be transmitted from the terminals in the receiving group to the base station are transmitted through a previously allocated common CQI feedback channel. In the present invention, in order to reduce a CQI feedback channel capacity, the base station does not allocate a common CQI feedback channel with respect to each reception terminal and allocates radio resources according to CQI levels. As radio resources are allocated according to CQI levels, a CQI feedback channel capacity may not be increased even when the number of terminals in the receiving group is increased and adaptive transmission may be efficiently performed.
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公开(公告)号：KR1020110095090A
公开(公告)日：2011-08-24
申请号：KR1020100034843
申请日：2010-04-15
Applicant: 한국전자통신연구원 , 경희대학교 산학협력단
CPC classification number: H04L27/2614 , H04L1/0625 , H04L27/2628 , H04L27/2649
Abstract: PURPOSE: A method for transmitting and receiving data for the OFDM(Orthogonal Frequency Division Multiplexing) of multiple antenna and an apparatus thereof are provided to reduce the number and the complexity of IFFT(Inverse Fast Fourier Transform), when IFFT wholly is operated, by performing IFFT at each subgroup. CONSTITUTION: A subgroup generating unit(230) divides data symbols into a plurality of subgroups at a frequency domain. An IFFT performing unit(240) individually proceeds IFFT in a plurality of the subgroups to generate partial signals at a time domain which corresponds to a plurality of the subgroups. An OFDM(Orthogonal Frequency Division Multiplexing) signal candidate generation unit(250) generates at least two OFDM signal candidates using the combination of partial signals to transmit each partial signal to one of a plurality of transmission antennas. A selecting unit(260) selects at least one of two OFDM signal candidates.
Abstract translation: 目的：提供一种用于发送和接收多天线的OFDM（正交频分复用）数据的方法及其装置，以在IFFT完全运行时减少IFFT（快速傅里叶逆变换）的数量和复杂度，通过 在每个子组执行IFFT。 构成：子组生成单元（230）将数据符号划分成频域的多个子组。 IFFT执行单元（240）单独地在多个子组中进行IFFT，以在对应于多个子组的时域生成部分信号。 OFDM（正交频分复用）信号候补生成单元（250）使用部分信号的组合生成至少两个OFDM信号候选，以将每个部分信号发送到多个发送天线之一。 选择单元（260）选择两个OFDM信号候选中的至少一个。
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