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公开(公告)号：KR1020150008978A
公开(公告)日：2015-01-26
申请号：KR1020130076505
申请日：2013-07-01
Applicant: 전남대학교산학협력단
CPC classification number: H04W24/02 , H04B7/024 , H04B7/0456 , H04L5/0032 , H04L5/0035 , H04L5/0073
Abstract: 본 발명은 LTE-A(Long Term Evolution-Advanced) 네트워크의 이종 네트워크(HetNet: Heterogeneous) 환경에서 다중 포인트 협력 통신 기반으로 다양한 스케줄링 및 프리코딩을 적용한 후 성능 분석을 통해 성능이 향상됨을 확인하기 위한 이종 네트워크에서 다중 포인트 협력 통신 기반의 셀간 간섭 제어에 따른 성능 분석 방법에 관한 것으로, CoMP 통신 기술의 CB(Coordinated Beamforming)방식에 다양한 스케줄링 및 프리코딩 기술을 적용하며, 스케줄링 기술로 CS 기법, 프리코딩 기술로 QR, THP, PD, SVD 기법 중 하나의 기법을 적용하고, 이에 대한 성능을 매크로셀만 존재하는 경우 또는 매크로셀의 가장자리에 피코셀이 존재할 경우에 대하여 비교 분석함으로써, 보다 향상된 이득을 가짐을 확인할 수 있는 것을 특징으로 한다.
Abstract translation: 本发明涉及一种基于异构网络中的多点协作通信的基于小区间干扰控制来分析性能的装置及其方法，其能够在应用各种调度和预编码之后通过性能分析来确认性能的改善 LTE-A（长期演进）网络的异构网络（HetNet）中的多点协作通信。 提供本发明以将各种调度和预编码技术应用于CoMP通信技术的CB（协调波束成形）方法; 应用CS技术作为调度技术，QR，THP，PD和SVD之一作为预编码技术; 并且在仅在宏小区中存在的情况下的性能与在宏小区边缘处的微微小区中存在的情况下的性能进行比较，从而确认改善的增益。
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公开(公告)号：KR101430265B1
公开(公告)日：2014-08-14
申请号：KR1020080023294
申请日：2008-03-13
Applicant: 엘지전자 주식회사 , 전남대학교산학협력단
CPC classification number: H04B7/0697 , H04L1/0618
Abstract: 다중 안테나 시스템에서 사용자 스케줄링 방법은 M명의 활성 사용자들로부터 조합되는 임시 사용자 집합들 중에서 최대 용량을 갖는 최대 임시 사용자 집합을 결정하는 단계, 및 상기 최대 임시 사용자 집합에 대한 프리코딩 행렬 및 가중치 행렬을 이용하여 상기 최대 임시 사용자 집합에 속하는 사용자들에게 다중 안테나를 통해 데이터를 전송하는 단계를 포함한다.
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公开(公告)号：KR1020140081117A
公开(公告)日：2014-07-01
申请号：KR1020120150503
申请日：2012-12-21
Applicant: 전남대학교산학협력단
CPC classification number: Y02D70/00 , H04W28/22 , H04W52/0206 , H04W88/04
Abstract: The present invention relates to an apparatus for intelligent relay and an intelligent relay method to which an AMC technique is applied. According to the present invention, the AMC technique is applied so that a relay protocol, a code rate, and a modulation method are adjusted according to a link state and data throughput and system efficiency can be maximized. The relay apparatus for receiving a signal from a base station apparatus for transmission to a user device includes an amplify and forward (AF) processing unit that amplifies a signal received by an AF method for transmission to the user device; a decode and forward (DF) processing unit that decodes a signal received by a DF method and then transmits the decoded signal to the user device; a demodulate and forward (DMF) processing unit that demodulates a signal received by a DMF method and then transmits the demodulated signal to the user device; and a modulation and coding selection unit that determines one of the relay protocols including the AF method, the DF method, and the DMF method and a modulation and coding scheme (MCS) level according to channel state information with respect to a link between the relay apparatus and the user device feedback-transmitted from the user device and controls according to the determination so that one of the AF processing unit, the DF processing unit, and the DMF processing unit processes the signal received from the base station apparatus by a code rate and a modulation method corresponding to the MCS level for transmission to the user device.
Abstract translation: 本发明涉及智能中继装置和应用AMC技术的智能中继方法。 根据本发明，应用AMC技术，使得根据链路状态调整中继协议，码率和调制方法，并且可以使数据吞吐量和系统效率最大化。 用于从用于发送到用户设备的基站装置接收信号的中继装置包括放大和转发（AF）处理单元，其放大由AF方法接收的信号以传送到用户设备; 解码和转发（DF）处理单元，其对由DF方法接收的信号进行解码，然后将解码的信号发送到用户设备; 解调和转发（DMF）处理单元，其解调通过DMF方法接收的信号，然后将解调信号发送到用户设备; 以及调制和编码选择单元，其根据关于所述继电器之间的链路的信道状态信息来确定包括AF方法，DF方法和DMF方法的中继协议之一以及调制和编码方案（MCS）级别 设备和从用户设备反馈的用户设备，并根据确定进行控制，使得AF处理单元，DF处理单元和DMF处理单元之一处理从基站设备接收的信号的码率 以及与用于传送到用户设备的MCS级别相对应的调制方法。
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44.发明授权무선 통신 시스템에서 전력 할당 방식을 이용한 멀티 홉 릴레이 통신을 위한 시스템, 이를 위한 장치 및 이를 위한 방법 有权在无线通信系统中使用功率分配的多呼叫中继通信系统，其装置及其方法
公开(公告)号：KR101405043B1
公开(公告)日：2014-06-11
申请号：KR1020130063853
申请日：2013-06-04
Applicant: 전남대학교산학협력단
IPC: H04B7/14
CPC classification number: H04W52/46 , H04B7/15557 , H04W52/241
Abstract: The present invention relates to a system for multi-hop relay communications using a power allocation method in a wireless communications system, an apparatus therefor, and a method therefor. The present invention provides a system and a method related to a relay node, wherein the system comprises: a communications module for transmitting and receiving a signal; and a control module for receiving channel state information of a downlink channel through a feedback channel, determining relay protocol according to a signal-to-noise ratio (SNR) of the received channel state information, processing the received signal according to the determined relay protocol, transmitting the processed signal via the communications module, and assigning power to the transmitted signal in proportion to the SNR.
Abstract translation: 本发明涉及一种使用无线通信系统中的功率分配方法的多跳中继通信系统及其装置及其方法。 本发明提供了一种与中继节点有关的系统和方法，其中该系统包括：用于发送和接收信号的通信模块; 以及控制模块，用于通过反馈信道接收下行链路信道的信道状态信息，根据接收到的信道状态信息的信噪比（SNR）确定中继协议，根据所确定的中继协议来处理接收信号 经由通信模块发送经处理的信号，并按比例向SNR发送信号分配功率。
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45.发明授权
公开(公告)号：KR101399293B1
公开(公告)日：2014-05-27
申请号：KR1020130076504
申请日：2013-07-01
Applicant: 전남대학교산학협력단
CPC classification number: H04W72/1247 , H04B7/024 , H04J11/0053 , H04L5/0035 , H04W24/02
Abstract: The present invention relates to an apparatus and a method for analyzing performance according to inter-cell interference control based on CoMP communication in a long term evolution-advanced (LTE-A) network, which are capable of lessening inter-cell interference by applying various scheduling and precoding based on CoMP communication in a homogeneous network environment of the LTE-A network. Provided are an apparatus and a method for analyzing performance according to inter-cell interference control based on CoMP communication in an LTE-A network, which are capable of obtaining improved gain by applying a CS technique as scheduling technology, and one among QR, THP, PD, and SVD techniques as precoding technology.
Abstract translation: 本发明涉及一种基于在长期演进（LTE-A）网络中基于CoMP通信的小区间干扰控制来分析性能的装置和方法，其能够通过应用各种方式来减小小区间干扰 在LTE-A网络的均匀网络环境中基于CoMP通信的调度和预编码。 提供了一种基于LTE-A网络中基于CoMP通信的小区间干扰控制来分析性能的装置和方法，其能够通过应用CS技术作为调度技术来获得改善的增益，并且QR，THP ，PD和SVD技术作为预编码技术。
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Patent Agency Ranking
公开(公告)号：KR101399292B1
公开(公告)日：2014-05-27
申请号：KR1020120141538
申请日：2012-12-07
Applicant: 전남대학교산학협력단
CPC classification number: H04W4/005 , H04L61/157 , H04W4/21 , H04W4/70
Abstract: The present invention relates to a machine-to-machine communication system using a social network service (SNS), a machine-to-machine communication method, and a machine-to-machine communication server, wherein when the machine-to-machine communication server receives a control information from a second machine-to-machine communication device which has received the control information of a first machine-to-machine communication device through an SNS interface, the machine-to-machine communication server converts the control information into a command recognizable by the first machine-to-machine communication device and transmits the command to the first machine-to-machine communication server such that the second machine-to-machine communication device can receive information corresponding to the command, thereby enabling a user, which is a person, to communicate with a machine-to-machine communication device using an interface of an SNS familiar to the user and to easily control the machine-to-machine communication device or acquire information.
Abstract translation: 本机技术领域本发明涉及使用社交网络服务（SNS），机对机通信方式以及机对机通信服务器的机对机通信系统，其中，当机对机通信 服务器从第二机器通信装置接收控制信息，该装置通过SNS接口接收到第一机对机通信装置的控制信息，机对机通信服务器将控制信息转换为 由第一机对机通信装置识别的命令，并将命令发送到第一机对机通信服务器，使得第二机对机通信装置能够接收与该命令对应的信息， 这是一个人，使用用户熟悉的SNS的接口与机器到机器通信设备进行通信，并且容易地控制m 机器到机器通信设备或获取信息。
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公开(公告)号：KR1020130128743A
公开(公告)日：2013-11-27
申请号：KR1020120052715
申请日：2012-05-17
Applicant: 엘지이노텍 주식회사 , 전남대학교산학협력단
IPC: H04L27/26
CPC classification number: H04L27/2695 , H04L25/022 , H04L25/0224 , H04L25/024 , H04L27/265
Abstract: A channel estimation apparatus includes a pilot symbol extractor, a least square channel estimator, a Kalman filter and a Wiener filter. The pilot symbol extractor extracts a plurality of pilot symbols from symbols of multiple frequency domains. The least square channel estimator compares the extracted multiple pilot symbols with a plurality of reference pilot symbols and generates a plurality of least square channel frequency responses. The Kalman filter performs Kalman filtering on the least square channel frequency responses. The Wiener filter performs the Wiener filtering on the Kalman filtered least square channel frequency responses. [Reference numerals] (120) Receiving unit;(140) CP removing unit;(180) Channel estimating unit;(190) Channel compensating unit;(195) Digital demodulating unit;(AA) Data symbol
Abstract translation: 信道估计装置包括导频符号提取器，最小二乘估计器，卡尔曼滤波器和维纳滤波器。 导频符号提取器从多个频域的符号提取多个导频符号。 最小二乘通道估计器将所提取的多个导频符号与多个参考导频符号进行比较，并产生多个最小二乘通道频率响应。 卡尔曼滤波器对最小二乘通道频率响应执行卡尔曼滤波。 维纳滤波器对卡尔曼滤波最小二乘通道频率响应进行维纳滤波。 （120）接收单元;（140）CP去除单元;（180）信道估计单元;（190）信道补偿单元;（195）数字解调单元;（AA）数据符号
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公开(公告)号：KR101173282B1
公开(公告)日：2012-08-10
申请号：KR1020090042225
申请日：2009-05-14
Applicant: 한국전자통신연구원 , 전남대학교산학협력단
Abstract: 셀간 간섭 조절을 위한 기술이 개시된다. 본 발명의 일 양상에 따라, 셀간 간섭은 자원 할당 스케줄링 또는 전력 관리를 통해 조절될 수 있다. 그리고 셀은 다수의 영역으로 구분될 수 있다. 각각의 영역에는 항상 사용 가능한 자원 대역과 선택적으로 사용 가능한 대역이 지정된다. 지정된 각각의 자원 대역에는 간섭 특성이 부여된다. 자원 할당 스케줄링 또는 전력 관리는 이렇게 영역 별로 지정된 자원 및 자원 별로 부여된 간섭 특성을 고려하여 수행된다.
셀간 간섭, 주파수 재사용, FFR, 간섭 특성, 자원 할당-
公开(公告)号：KR1020120041326A
公开(公告)日：2012-05-02
申请号：KR1020100102736
申请日：2010-10-21
Applicant: 엘지이노텍 주식회사 , 전남대학교산학협력단
IPC: H04J11/00
CPC classification number: H04L1/0026 , H04L27/2646
Abstract: PURPOSE: A method for controlling CQI(Channel Quality Indicator) feedback in an OFDMA(Orthogonal Frequency Division Multiple Access) system is provided to reduce the overhead bit number of CQI feedback information by adapting a basic Huffman compression technique to a full-band CQI technique and a Best M Individual technique. CONSTITUTION: SINR(Signal-to-Interference and Noise Ratio) values of each received PRB(Physical Resource Block) are mapped with CQI(Channel Quality Indicator) values(S110). The frequency probability of each CQI value is obtained to be matched with the frequency number of the CQI value according to the mapping(S120). A Huffman code for the frequency probability of an obtained CQI value is configured(S130). The feedback of the CQI value to a transmitting end is controlled based on a configured Huffman code(S140).
Abstract translation: 目的：提供一种用于控制OFDMA（正交频分多址）系统中的CQI（信道质量指示符）反馈的方法，以通过将基本的霍夫曼压缩技术适应全频带CQI技术来减少CQI反馈信息的开销比特数 和最佳M个人技术。 构成：每个接收的PRB（物理资源块）的SINR（信号与干扰和噪声比）值被映射为CQI（信道质量指示符）值（S110）。 根据映射，获得每个CQI值的频率概率与CQI值的频率数相匹配（S120）。 配置获得的CQI值的频率概率的霍夫曼代码（S130）。 基于配置的霍夫曼码来控制CQI值对发送端的反馈（S140）。
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公开(公告)号：KR102204783B1
公开(公告)日：2021-01-18
申请号：KR1020200084794
申请日：2020-07-09
Applicant: 전남대학교산학협력단
IPC: H04B7/06 , H04B7/0413 , H04B17/318 , G06N3/08
Abstract: 본발명은밀리미터파통신을이용한실내환경에서의딥러닝기반의빔포밍통신시스템및 방법에관한것으로, 기지국에서적어도하나의사용자단말로전송한기준신호에대한응답으로각각의사용자단말로부터사용자단말의위치별 기준신호수신전력및 위치정보를수신하여핑거프린팅 DB를구축하고, 구축된핑거프린팅데이터에서사용자단말의위치별 기준신호수신전력을기반으로사용자모델및 기지국과사용자단말사이에위치한각 장애물에따른기준신호수신전력을기반으로장애물모델을구축한다. 적어도하나의사용자단말로부터위치정보와데이터트래픽을수신하여수신된데이터트래픽에대응하는사용자단말의빔 인덱스를심층신경망으로부터도출및 도출된빔 인덱스로기지국과사용자간의통신채널을형성하여실내통신환경에서신뢰도및 데이터전송률을향상시킨다.
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