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    • 9. 发明申请
    • Channel estimation apparatus and method in digital communication system
    • 数字通信系统中的信道估计装置及方法
    • US20050175126A1
    • 2005-08-11
    • US10621447
    • 2003-07-18
    • Yong-Sik KwonJin-Hee JeongJung-Jin Kim
    • Yong-Sik KwonJin-Hee JeongJung-Jin Kim
    • H04B1/69H04L25/02H03D1/00H04L27/06
    • H04L25/0204H04L25/0226
    • A channel estimation apparatus in a digital communication system is disclosed, which includes: a correlation unit for obtaining a correlation function of a first received signal by means of a correlation between a received synchronizing signal and a reference synchronizing signal, and obtaining a correlation function of the received synchronizing signal by a correlation between the synchronizing signals, a first estimating unit for estimating a first multi-path by applying a first threshold value to the correlation function of the first received signal, a correlation noise removing unit for obtaining a correlation function of a second received signal by removing correlation noise included in the correlation function of the first received signal, by a first multi-path, and a second estimating unit for estimating a second multi-path by applying a second threshold value to a correlation function of the second received signal in which the correlation noise has been removed.
    • 公开了一种数字通信系统中的信道估计装置,其包括:相关单元,用于通过接收到的同步信号和参考同步信号之间的相关性获得第一接收信号的相关函数,并获得相关函数 通过同步信号之间的相关接收的同步信号,用于通过对第一接收信号的相关函数应用第一阈值来估计第一多路径的第一估计单元,获得相关函数的相关噪声去除单元 通过由第一多路径去除包括在第一接收信号的相关函数中的相关噪声的第二接收信号,以及用于通过将第二阈值应用于第二多路径的相关函数来估计第二多路径的第二估计单元 相关噪声已被去除的第二接收信号。
    • 10. 发明授权
    • Real-time service monitoring apparatus and method using time stamp
    • 使用时间戳的实时业务监控装置和方法
    • US09253049B2
    • 2016-02-02
    • US13141896
    • 2009-12-23
    • Jeong-Gyun AhnSung-Soo KimJong-Hoon EomYong-Sik Kwon
    • Jeong-Gyun AhnSung-Soo KimJong-Hoon EomYong-Sik Kwon
    • H04L12/26H04L12/24
    • H04L41/5022H04L41/5003H04L41/5035H04L43/0829H04L43/0852H04L43/106
    • A real-time service monitoring apparatus and method using a time stamp is provided. The real-time service monitoring apparatus includes: a packet reception and classification block configured to generate a first time stamp whenever receiving a packet, and classify the received packet into a time synchronization packet or a real-time monitoring packet; a packet processing and switching block configured to process the classified packet depending on whether the packet is the time synchronization packet or the real-time monitoring packet, and switch the processed packet to a destination address; a packet classification and transmission block configured to classify the switched packet depending on whether the packet is the time synchronization packet or the real-time monitoring packet, generate a second time stamp for the classified packet, and transmits the packet; and a real-time monitoring block configured to compute a real-time monitoring parameters for each flow using the generated first and second time stamps, in order to monitor the real-time service.
    • 提供了使用时间戳的实时服务监视装置和方法。 实时业务监控装置包括:分组接收和分类块,被配置为在接收到分组时生成第一时间戳,并将接收到的分组分类为时间同步分组或实时监控分组; 分组处理和切换块,被配置为根据分组是时间同步分组还是实时监视分组来处理分类分组,并将处理的分组切换到目的地地址; 分组分类和传输块,被配置为根据分组是时间同步分组还是实时监控分组来对切换的分组进行分类,生成用于分类分组的第二时间戳,并发送分组; 以及实时监控块,被配置为使用所生成的第一和第二时间戳计算每个流的实时监视参数,以便监视实时服务。