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    • 6. 发明公开
    • 저속 WPAN에서 GTS 할당 및 관리방법
    • GTS在低速无线个人区域网络中的分配与管理
    • KR1020120019951A
    • 2012-03-07
    • KR1020100083588
    • 2010-08-27
    • 주식회사 케이티
    • 김연수김영일박진수조수현
    • H04L12/863H04L29/08H04L12/28
    • H04L47/50H04L12/28H04L29/08945
    • PURPOSE: A method for allocating and managing a GTS(Guaranteed Time Slot) in a low speed WPAN(Wireless Personal Area Network) is provided to enhance the spectrum effectiveness for timeslots consisting of a superframe, thereby increasing the bandwidth usage for data transmission of sensor nodes. CONSTITUTION: A GTS allocation state is identified for CFP(Contention Free Period) timeslots in superframes within a specific transmission cycle by a request for a GTS allocation of a request sensor node. Slack time slots are examined(S300). The GTS consecutive timeslots requested by the request sensor node and the data transmission time are arranged corresponding to the slack time slots(S500). The size of the CFP timeslots in the superframes is constant above a specific order of the superframe.
    • 目的:提供一种用于在低速WPAN(无线个人区域网络)中分配和管理GTS(保证时隙)的方法,以增强由超帧组成的时隙的频谱效能,从而增加传感器数据传输的带宽使用 节点。 构成:通过请求传感器节点的GTS分配请求,在特定传输周期内的超帧中为CFP(无争用周期)时隙识别出GTS分配状态。 检查松弛时隙(S300)。 由请求传感器节点请求的GTS连续时隙和数据传输时间相应于松弛时隙排列(S500)。 超帧中的CFP时隙的大小恒定在超帧的特定顺序之上。
    • 8. 发明公开
    • 상황정보를 이용한 상거래 추천 시스템 및 그 방법
    • 建议系统和方法商标
    • KR1020090000402A
    • 2009-01-07
    • KR1020070064443
    • 2007-06-28
    • 주식회사 케이티
    • 이승재김영일이상혁
    • G06Q30/06H04W4/02
    • G06Q30/0261G06Q30/0269H04W4/02
    • A commercial transaction recommendation system using contextual information and a method thereof are provided to search the most suitable goods recommendation for a target and enable a user to friendly maintain the relationship with people related to him/her. A commercial transaction recommendation system comprises the followings: a server(110) providing the commodity information according to a information offer request; a contextual information server(120) providing contextual information of recommendation targets which a specified user requests, and storing the contextual information of a target registered by the user; a relationship information server(130) offering relationship information with the recommendation targets which the specified user requests, storing the registered relationship information with the recommendation targets inputted by the user; a zone entry monitoring system(140) which monitors whether the user enters into a designated region or not, and when the entry of the user to the designated region is notified, requests a commodity information server, a status information server and a relationship information server to provide information; and an inference server(150) recommending the goods and target to the user after determining the goods corresponding to the recommendation target by the provided information.
    • 提供使用上下文信息的商业交易推荐系统及其方法,以搜索针对目标的最合适的商品推荐,并使用户能够友好地保持与他/她相关的人的关系。 商业交易推荐系统包括:根据信息提供请求提供商品信息的服务器(110); 提供指定用户请求的推荐目标的上下文信息的上下文信息服务器(120),并存储由用户登记的目标的上下文信息; 提供与指定用户请求的推荐目标的关系信息的关系信息服务器(130),存储与用户输入的推荐目标的登记关系信息; 区域进入监视系统(140),其监视用户是否进入指定区域,并且当通知用户进入指定区域时,请求商品信息服务器,状态信息服务器和关系信息服务器 提供信息; 以及推定服务器(150),在通过所提供的信息确定与所述推荐目标相对应的商品之后,向所述用户推荐所述商品和目标。
    • 9. 发明公开
    • 다중 간섭 잡음 제거 기능을 이용한 채널 추정 방법 및수신 장치
    • 用于多通道干扰消除的信道估计的方法和装置
    • KR1020070061748A
    • 2007-06-14
    • KR1020060123649
    • 2006-12-07
    • 한국전자통신연구원삼성전자주식회사에스케이브로드밴드주식회사에스케이텔레콤 주식회사주식회사 케이티
    • 박남진김영일
    • H04B1/7097
    • H04B1/7103H04B1/7075H04B1/7107H04L25/0204
    • A method for estimating a channel using a multi-interference noise removing function and a receiving apparatus are provided to increase a cell radius managed by a base station, improve accuracy of power control and handoff time point and transmission/reception performance. An LPF(Low Pass Filter)(220) detects a baseband signal from a base station signal. The first to the Kth detectors(230,240,250) estimate a channel parameter from the baseband signal, and calculate a channel estimation signal by using the channel parameter. A selector(330) selects the channel estimation signal in the reception power order to generate one or more pilot channel signals. PN(Pseudo-Noise) code re-spreading units(340k,350,360) re-spread the pilot channel signals to reproduce baseband signals of the pilot channel signals. A subtracting unit(320) subtracts the reproduced baseband signals of the pilot channel signals from the baseband signal detected by the LPF(220) to generate a new signal without the pilot channel signal.
    • 提供了一种使用多干扰噪声去除功能估计信道的方法和接收装置,以增加由基站管理的小区半径,提高功率控制精度和切换时间点以及发射/接收性能。 LPF(低通滤波器)(220)从基站信号检测基带信号。 第一到第K个检测器(230,240,250)从基带信号估计信道参数,并且使用信道参数来计算信道估计信号。 选择器(330)以接收功率次序选择信道估计信号以产生一个或多个导频信道信号。 PN(伪噪声)码重新扩展单元(340k,350,360)重新扩展导频信道信号以再现导频信道信号的基带信号。 减法单元(320)从由LPF(220)检测的基带信号中减去导频信道信号的再生基带信号,生成没有导频信号信号的新信号。
    • 10. 发明公开
    • 엘브이디에스 직병렬화기를 이용한 링크 설정 및 장애 검출방법
    • 宽带无线通道技术使用多个频率载波
    • KR1020070060456A
    • 2007-06-13
    • KR1020050119879
    • 2005-12-08
    • 한국전자통신연구원삼성전자주식회사에스케이브로드밴드주식회사에스케이텔레콤 주식회사주식회사 케이티
    • 조승권이석진김영일
    • G06F11/16
    • A method for setting a link and detecting a failure by using an LVDS SERDES is provided to check PLL(Phase Locked Loop) lock of serializers of both ends of an initial link, initialize the link to a data transceiving state, and detect a link failure in the link using the LVDS SERDES by checking signal integrity without changing a test mode while transceiving frame data having a finite length. If link setting is started, a sync pattern transmitting state is kept for 100ms by controlling the SERDES after setting a link setting failure state as a current state(810). It is checked whether a PLL is locked or not by checking a state of the SERDES after 100ms(890). If abnormality is checked, checkup is repeated after keeping the sync pattern transmitting state for 10ms. If the PLL is locked, a loop back test count is initialized, the count is increased after continuously transmitting the same loop back pattern for 150 words, and it is checked whether all loop back patterns are returned(850). If all loop back pattern is returned, the link setting state is set as a success state(860).
    • 提供一种通过使用LVDS SERDES设置链路和检测故障的方法,用于检查初始链路两端的串行器的PLL(锁相环)锁定,将链路初始化为数据收发状态,并检测链路故障 在使用LVDS SERDES的链接中,通过检查信号完整性,而不改变测试模式,同时收发具有有限长度的帧数据。 如果链路设置开始,则在将链路设置失败状态设置为当前状态之后,通过控制SERDES来保持同步模式发送状态100ms(810)。 通过在100ms(890)之后检查SERDES的状态来检查PLL是否被锁定。 如果检查异常,则保持同步模式发送状态10ms后重复检查。 如果PLL被锁定,则回送测试计数被初始化,连续发送150个字的循环模式后,增加计数,并且检查是否返回所有循环模式(850)。 如果返回所有循环模式,则将链路设置状态设置为成功状态(860)。