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    • 3. 发明授权
    • Vestigial identification for co-channel interference in cellular
communications
    • 蜂窝通信中同信道干扰的残留识别
    • US5390197A
    • 1995-02-14
    • US985767
    • 1992-12-04
    • Andrew J. MacDonaldYoungky KimStanley E. Kay
    • Andrew J. MacDonaldYoungky KimStanley E. Kay
    • H04L1/00H04L12/28H04W16/10H04W28/04G06F11/10
    • H04L1/0057H04L1/0041H04L1/0045H04W16/10
    • A vestigial identification system is provided for transmitting information in a cellular communications network employing frequency reuse. The vestigial identification system enables a receiver to detect both bit errors and interfering messages to avoid call disruption. A composite parity check is produced by encoding message data and a site identifier via an encoder. A transmitter conveys a code word, formed at a code word generator by combining the composite parity check with the message data, to a receiver. At the receiver, an encoder forms an error detection parity check by encoding both the message data from the code word and the site identifier. An error detector compares the composite parity check from the transmitted code word to the error detection parity check, and generates an error if the parity checks are not identical to one another, enabling rejection of the message by the receiver.
    • 提供了一种残留识别系统,用于在使用频率重用的蜂窝通信网络中传输信息。 残留识别系统使得接收机能够检测位错误和干扰消息,以避免呼叫中断。 通过编码器编码消息数据和站点标识符来产生复合奇偶校验。 发射机通过将复合奇偶校验与消息数据组合在码字发生器处,形成码字到接收机。 在接收机处,编码器通过对代码字和站点标识符的消息数据进行编码来形成错误检测奇偶校验。 错误检测器将来自发送的代码字的复合奇偶校验与差错检测奇偶校验进行比较,并且如果奇偶校验检查彼此不相同,则可以产生错误,从而使接收器能够拒绝该消息。
    • 10. 发明授权
    • Method and system for interference cancellation for high spectral efficiency satellite communications
    • 用于高频谱效率卫星通信的干扰消除方法和系统
    • US07526051B1
    • 2009-04-28
    • US09401694
    • 1999-09-23
    • Bassel F. BeidasStanley E. KayA. Roger Hammons, Jr.
    • Bassel F. BeidasStanley E. KayA. Roger Hammons, Jr.
    • H04B1/10H04L1/00
    • H04B1/123H04L25/03057
    • Systems and methods for interference cancellation for high spectral efficiency satellite communications enabling efficient utilization of available bandwidth through overlapping adjacent channels. Data information is received along with noise information, and a filter bank is adapted to receive and filter the waveform and output channel information including a combination of data signals and adjacent channel interference signals. The filter bank is further adapted to provide estimated data signals and to calculate estimated interference signals. One or more interference generating processors are adapted to receive the calculated estimated interference signals to enable the interference generating processor to generate interference signals corresponding to the calculated estimated interference signals. The interference generating processor subtracts the interference signals from the estimated data signals in order to output relatively more accurate estimated data signals. A decision device is provided for use with the interference generating processors for estimating data signals in accordance with the relative ability of the interference processor to cancel interference with the estimated interference signals.
    • 用于高频谱效率卫星通信的干扰消除的系统和方法,能够通过重叠的相邻信道有效利用可用带宽。 数据信息与噪声信息一起被接收,并且滤波器组适于接收和滤波波形并且输出包括数据信号和相邻信道干扰信号的组合的信道信息。 滤波器组还适于提供估计的数据信号并计算估计的干扰信号。 一个或多个干扰产生处理器适于接收所计算的估计干扰信号,以使干扰产生处理器产生对应于所计算的估计干扰信号的干扰信号。 干扰产生处理器从估计的数据信号中减去干扰信号,以便输出相对更准确的估计数据信号。 提供了一种与干扰产生处理器一起使用的判定装置,用于根据干扰处理器相对于估计干扰信号的干扰的相对能力来估计数据信号。