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公开(公告)号：KR101414324B1
公开(公告)日：2014-07-04
申请号：KR1020120156647
申请日：2012-12-28
Applicant: 인하대학교 산학협력단
Abstract: Disclosed is cellular system and method for controlling interference between adjacent cells. A base station of the cellular system may comprise an information transmitting unit for transmitting pre-processed information which is randomly generated, to terminals located in the area of the base station; a power receiving unit for receiving interference signal power which is measured by using the pre-processed information from the terminals; and a terminal selection unit for selecting a terminal to perform wireless communications among the terminals based on the interference signal power.
Abstract translation: 公开了用于控制相邻小区之间的干扰的蜂窝系统和方法。 蜂窝系统的基站可以包括：信息发送单元，用于将位于所述基站区域中的终端随机生成的预处理信息发送; 电力接收单元，用于接收通过使用来自终端的预处理信息测量的干扰信号功率; 以及终端选择单元，用于基于干扰信号功率选择终端来执行终端之间的无线通信。
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公开(公告)号：KR1020130119786A
公开(公告)日：2013-11-01
申请号：KR1020120042855
申请日：2012-04-24
Applicant: 인하대학교 산학협력단
CPC classification number: H04B7/026 , H04B7/0697 , H04B7/15592
Abstract: A receiving node has a plurality of receiving antennas in a cooperative communication system with a plurality of relays. The receiving node selects, among a plurality of relays, ones affiliated to a candidate relay group capable of decoding the data of a transmitting node. The receiving node selects, among the relays affiliated to the candidate relay group, ones satisfying the data transmission rate of the transmission node. The receiving node determines the transmission mode of the selected relays as a spatial multiplexing mode or a transmission diversity mode according to the number of the selected relays. [Reference numerals] (S210) Transmission node transmits a transmission symbol;(S220) Each relay determines whether a transmission signal can be decoded;(S230) Each relay reports on the transmission signal's decoding possibility to a reception node;(S240) Reception node selects a minimum number of relays satisfying the transmission rate of the transmission symbol among a group of relay candidates able to decode;(S250) Reception node determines the transmission mode of the selected relays;(S260) Relays selected by the reception node transmits the transmission signal to the reception node in the determined transmission mode
Abstract translation: 接收节点在具有多个中继的协作通信系统中具有多个接收天线。 接收节点在多个中继中选择与能够解码发送节点的数据的候选中继组有关的中继。 接收节点在与候选中继组相关的中继中选择满足发送节点的数据传输速率的中继。 接收节点根据所选继电器的数量，将所选继电器的发送模式确定为空间复用模式或发送分集模式。 （S210）发送节点发送发送符号（S220）各继电器判定是否能够对发送信号进行解码（S230）各继电器向接收节点报告发送信号的解码可能性;（S240）接收节点 选择能够解码的中继候选组中满足发送符号的发送速率的最小数量的中继;（S250）接收节点确定所选择的中继的发送模式;（S260）接收节点选择的继电器发送 以确定的传输模式向接收节点发送信号
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公开(公告)号：KR1020130098587A
公开(公告)日：2013-09-05
申请号：KR1020120020205
申请日：2012-02-28
Applicant: 인하대학교 산학협력단
IPC: H04B7/005
CPC classification number: H04L25/03267 , H04L25/03885 , H04L2025/03636
Abstract: PURPOSE: A signal equalization apparatus for selecting equalization technique and a method thereof are provided to determine signal to noise ratio (SNR) of a communication signal and then to apply the technique differently which is to be used in equalizing the communication signal according to the determined SNR. CONSTITUTION: An SNR determining unit (110) determines SNR of a communication signal by using a training signal included in the communication signal. An equalizing unit (140) equalizes a data signal included in the communication signal by using one of a first equalization technique and a second equalization technique. A first equalization technique error rate determining unit (120) determines error rate of the first equalization technique according to the SNR by analyzing the performance of the first equalization technique. A second equalization technique error rate determining unit (130) determines error rate of the second equalization technique according to the SNR by analyzing the performance of the second equalization technique. [Reference numerals] (100) Signal equalization device; (110) SNR determining unit; (120) First equalization technique error rate determining unit; (130) Second equalization technique error rate determining unit; (140) Equalization unit; (141) Equalization method determination unit; (142) Data signal equalization unit
Abstract translation: 目的：提供一种用于选择均衡技术的信号均衡装置及其方法，以确定通信信号的信噪比（SNR），然后根据所确定的用于确定通信信号的均衡的方式应用不同的方法 SNR。 构成：SNR确定单元（110）通过使用通信信号中包括的训练信号来确定通信信号的SNR。 均衡单元（140）通过使用第一均衡技术和第二均衡技术之一来均衡包括在通信信号中的数据信号。 第一均衡技术错误率确定单元（120）通过分析第一均衡技术的性能来确定根据SNR的第一均衡技术的错误率。 第二均衡技术错误率确定单元（130）通过分析第二均衡技术的性能来确定根据SNR的第二均衡技术的错误率。 （附图标记）（100）信号均衡装置; （110）SNR确定单元; （120）第一均衡技术错误率确定单元; （130）第二均衡技术错误率确定单元; （140）均衡单位; （141）均衡方法确定单位; （142）数据信号均衡单元
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公开(公告)号：KR101186082B1
公开(公告)日：2012-09-25
申请号：KR1020060019661
申请日：2006-02-28
Applicant: 삼성전자주식회사 , 인하대학교 산학협력단
CPC classification number: H04W16/14 , H04W72/042 , H04W76/10
Abstract: 본 발명은 무선 인지 기술을 지원하는 무선 망에서의 아웃밴드 시그널링 방법에 관한 것으로, 상기 무선 망을 구성하는 기지국이 공유 무선 자원에 의해 할당된 임의의 채널을 사용하여 사용자 단말에 대한 통신 서비스를 제공하며, 상기 공유 무선 자원 중 현재 사용되고 있지 않은 무선 자원에 의해 할당될 수 있는 적어도 하나의 채널을 통해 자원 할당에 관한 정보를 주기적으로 방송하고, 상기 자원 할당에 관한 정보에 대응하여 상기 사용자 단말로부터 채널 상태에 관한 정보가 수신되면, 상기 통신 서비스를 제공하는 채널을 다른 채널로 변경하는 것을 특징으로 한다.
무선 인지 기술(Cognitive Radio), 숨겨진 인컴번트 시스템 검출(Hidden Incumbent System Detection)-
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Patent Agency Ranking
公开(公告)号：KR1020110024286A
公开(公告)日：2011-03-09
申请号：KR1020090082203
申请日：2009-09-01
Applicant: 인하대학교 산학협력단
CPC classification number: H04W72/12 , H04W72/0446
Abstract: PURPOSE: A dynamic time allocation method in cooperative multiplexing with a partial relaying system is provided to optimize the length of the time interval in order to have maximum system capacity by the variable location of the repeater. CONSTITUTION: An entire transmission frame interval of a repeater cooperative multiplexing technique is divided by the time interval(S100). A channel capacity of the divided each time interval is obtained(S200). The system capacity at the part relay cooperation multiplex technique is calculated by using the channel capacity of each time interval(S300). The time interval capable of maximizing the system capacity is calculated(S400).
Abstract translation: 目的：提供与部分中继系统协作复用的动态时间分配方法，以优化时间间隔的长度，以便通过中继器的可变位置具有最大的系统容量。 构成：将中继器协同复用技术的整个传输帧间隔除以时间间隔（S100）。 获得分割的每个时间间隔的通道容量（S200）。 通过使用每个时间间隔的信道容量来计算部分中继协作复用技术的系统容量（S300）。 计算能够最大化系统容量的时间间隔（S400）。
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公开(公告)号：KR100919396B1
公开(公告)日：2009-09-29
申请号：KR1020080025620
申请日：2008-03-19
Applicant: 인하대학교 산학협력단
Abstract: 본 발명은 셀 외곽에 위치한 단말기와 기지국의 데이터 교환을 지원하기 위한 중계국(Relay Station) 기반의 무선통신시스템에서 시역전 방법(Time Reversal Mirror)을 이용한 양방향 부호화 방법에 관한 것으로서, 보다 구체적으로는 (1) 중계국에서 기지국과 단말국에 탐침신호(Probe Source)를 전송하는 제1 단계; (2) 상기 기지국과 상기 단말국에서, 상기 제1 단계에 의해 수신된 탐침신호를 이용하여 시간에 따른 각 채널 상태 정보(Channel State Information)를 저장하고, 데이터를 시역전시켜 상기 중계국에 송신하는 제2 단계; (3) 상기 중계국에서, 상기 제2 단계에 의해 수신된 상기 기지국과 상기 단말국의 시역전된 데이터를 전력 정규화(Power Normalization) 후 상기 기지국과 상기 단말국에 재전송하는 제3 단계; 및 (4) 상기 기지국과 상기 단말국에서, 상기 제2 단계에서 송신한 데이터를 이용하여 상기 기지국과 상기 단말국에서 상기 제3 단계에 의해 수신된 신호를 복호화하는 제4 단계를 포함하는 것을 그 구성상의 특징으로 한다.
본 발명의 양방향 부호화 방법에 따르면, 기지국과 단말국이 채널 상태를 이용한 전치 필터를 사용함으로써, 중계국의 채널 추정이 불필요해 중계국 기반의 무선이동통신 시스템에서의 중계국의 복잡도를 감소시킬 수 있다. 또한, 중계국이 기지국과 단말국의 신호를 전송함에 있어, 중계국에 별도의 신호처리과정 없이 기지국과 단말국의 신호를 동시에 송수신함으로써, 기존의 방법보다 데이터 전송 시간을 단축해 시스템의 용량을 대폭 향상시킬 수 있다.-
公开(公告)号：KR1020080090167A
公开(公告)日：2008-10-08
申请号：KR1020070033340
申请日：2007-04-04
Applicant: 인하대학교 산학협력단
CPC classification number: H04L27/2601 , H04L5/0007
Abstract: A method for detecting a preferential user signal in transmitting data in an OFDM(Orthogonal Frequency Division Multiplexing) system is provided to detect a preferential user signal quickly and accurately while transmitting data. A determining unit determines whether or not there are residual subcarriers(S100), and determines whether or not the number of the residual subcarriers is larger than the number of subcarriers of a single frame(S110). If the number of the residual subcarriers is smaller than that of the subcarriers of the single frame, the determining unit determines whether or not the number of the residual subcarriers is larger than that of subcarriers of a single OFDM slot unit(S140). If the number of the residual subcarriers is not larger than that of the subcarriers of the single OFDM slot unit, the residual subcarriers are allocated within the single OFDM slot unit in the single frame(S160). A preferential user signal is detected by using an empty subcarrier region(S130).
Abstract translation: 提供了一种在OFDM（正交频分复用）系统中检测发送数据中的优先用户信号的方法，用于在发送数据的同时快速准确地检测优先用户信号。 确定单元确定是否存在剩余子载波（S100），并且确定剩余子载波的数量是否大于单个帧的子载波数（S110）。 如果剩余子载波的数量小于单帧的子载波的数量，则确定单元确定剩余子载波的数量是否大于单个OFDM时隙单元的子载波的数量（S140）。 如果剩余子载波的数量不大于单个OFDM时隙单元的子载波的数量，则在单个帧中在单个OFDM时隙单元内分配剩余子载波（S160）。 通过使用空子载波区域来检测优先用户信号（S130）。
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公开(公告)号：KR1020080066258A
公开(公告)日：2008-07-16
申请号：KR1020070003471
申请日：2007-01-11
Applicant: 삼성전자주식회사 , 인하대학교 산학협력단
CPC classification number: H04B7/2606 , H04L27/2608 , H04W16/14 , H04W16/26 , H04W72/02 , H04W84/047
Abstract: A communication method in a CR(Cognitive Radio) environment using a relaying system and an apparatus for the same are provided to search for unused radio resources more easily in a CR environment by securing available radio resources more stably in order to search for an available frequency band, without the necessity of searching a wide frequency band. A CRBS(CR Base Station) executes synchronization with a relaying system for data transmission to share radio resources(S101). Then the CRBS receives a Tx frame of the relaying system from a PBS(Primary BS) and acquires control information(S102). Based on the acquired control information, the CRBS confirms whether a relay user who downloads data through an RS(Relay Station) exists among the users of the PBS(S103). If such a relay user exists(S104), the CRBS confirms the location of the relay user's DL(Downlink)/UL(Uplink) burst data through the relay user's DL/UL map information(S106). The CRBS acquires the relay user's Tx signal during the first hop while the relay user is transmitting DL data(S107). Based on the acquired Tx signal, or DL burst data, the CRBS performs orthogonal coding for data to be transmitted(S108). The CRBS transmits the coded data during the second hop while the relay user is transmitting DL data(S109).
Abstract translation: 提供了使用中继系统的CR（认知无线电）环境中的通信方法及其装置，用于通过更稳定地确保可用的无线电资源来更容易地在CR环境中搜索未使用的无线电资源，以便搜索可用的频率 频带，而不需要搜索宽频带。 CRBS（CR基站）与用于数据传输的中继系统执行同步以共享无线电资源（S101）。 然后，CRBS从PBS（主BS）接收中继系统的Tx帧，并获取控制信息（S102）。 基于获取的控制信息，CRBS确认在PBS的用户中是否存在通过RS（中继站）下载数据的中继用户（S103）。 如果存在这样的中继用户（S104），则CRBS通过中继用户的DL / UL映射信息来确认中继用户的DL（Downlink）/ UL（上行链路）突发数据的位置（S106）。 当中继用户正在发送DL数据时，CRBS在第一跳期间获取中继用户的Tx信号（S107）。 基于获取的Tx信号或DL突发数据，CRBS对要发送的数据执行正交编码（S108）。 在中继用户发送DL数据的同时，CRBS在第二跳期间发送编码数据（S109）。
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公开(公告)号：KR1020070121610A
公开(公告)日：2007-12-27
申请号：KR1020070114457
申请日：2007-11-09
Applicant: 삼성전자주식회사 , 인하대학교 산학협력단
Abstract: A method and a system for resource management in a wireless communication system are provided to lease radio-shared resource smoothly and dynamically between other BSs(Base Stations) through cognitive radio technology, thereby maximizing the use rate of insufficient radio resource. A method for resource management in the leased BS(Base Station) of a wireless communication system comprises the following steps of: receiving a RA(Resource Advertisement) message transmitted from at least one adjacent BS(S401,S402); transmitting an RR-REQ(Resource Renting Request) message to at least one leased BS selected out of the at least one adjacent BS on the basis of channel set information included in the RA message; receiving a resource allocation message from the at least one leased BS; and returning the leased resource to the leased BS by transmitting an RRET-REQ(Resource Returning Request) message for leased resource to the leased BS and transmitting an RRET-RSP(Resource Returning Response) to the leased BS.
Abstract translation: 提供了一种无线通信系统中资源管理的方法和系统，通过认知无线电技术在其他BS（基站）之间平滑，动态地租用无线电共享资源，从而最大限度地提高了无线电资源不足的使用率。 一种用于无线通信系统的租用BS（基站）中资源管理的方法，包括以下步骤：接收从至少一个相邻BS发送的RA（资源通告）消息（S401，S402）; 基于包括在RA消息中的信道集信息，向至少一个相邻BS中选择的至少一个租用BS发送RR-REQ（资源租赁请求）消息; 从所述至少一个租用的BS接收资源分配消息; 并通过向租用的BS发送租用资源的RRET-REQ（资源返回请求）消息并向租用的BS发送RRET-RSP（资源返回响应）来将租用的资源返回到租用的BS。
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