FLEXIBLE CORRELATION AND QUEUEING IN CDMA COMMUNICATION SYSTEMS

    公开(公告)号:AU2003223290A1

    公开(公告)日:2003-11-10

    申请号:AU2003223290

    申请日:2003-03-17

    Applicant: MOTOROLA INC

    Abstract: A programmable correlator for a communication system includes an input queue coupled with an analog-to-digital converter (ADC). The input queue includes a random access memory (RAM) wherein sampled data streams from the ADC are written into the RAM. The input queue has two banks of memory of width 2M. A flexible complex correlator is operable on M samples. The correlator is coupled to read M complex samples out of 2M samples from the input queue. A pseudo-noise (PN) crossbar unit operates to rotate a generated PN code to match a rotation of the input queue data in the complex correlator.

    METHOD AND SYSTEM FOR GENERATION OF DOUBLE-SIDED PULSE WAVE MODULATION SIGNAL
    3.
    发明申请
    METHOD AND SYSTEM FOR GENERATION OF DOUBLE-SIDED PULSE WAVE MODULATION SIGNAL 审中-公开
    双波形波形调制信号的生成方法与系统

    公开(公告)号:WO2007062295A2

    公开(公告)日:2007-05-31

    申请号:PCT/US2006060788

    申请日:2006-11-10

    Inventor: YE ZHUAN

    CPC classification number: H03M1/504

    Abstract: A method and system for generating a double-sided pulse width modulation (PWM) signal (110) is disclosed. The method includes generating a leading edge PWM signal and a trailing edge PWM signal from a pulse code modulation (PCM) data stream (102) using a modulation conversion circuitry (106). The method further includes combining the leading edge PWM signal and the trailing edge PWM signal to form a double-sided PWM signal using a combining circuitry (108).

    Abstract translation: 公开了一种用于产生双面脉宽调制(PWM)信号(110)的方法和系统。 该方法包括使用调制转换电路(106)从脉冲编码调制(PCM)数据流(102)生成前沿PWM信号和后沿PWM信号。 该方法还包括使用组合电路(108)组合前沿PWM信号和后沿PWM信号以形成双侧PWM信号。

    DYNAMIC ALLOCATION OF SPECTRUM SENSING RESOURCES IN COGNITIVE RADIO NETWORKS
    4.
    发明申请
    DYNAMIC ALLOCATION OF SPECTRUM SENSING RESOURCES IN COGNITIVE RADIO NETWORKS 审中-公开
    认知无线电网络中频谱感知资源的动态分配

    公开(公告)号:WO2009145976A4

    公开(公告)日:2010-01-28

    申请号:PCT/US2009038036

    申请日:2009-03-24

    CPC classification number: H04W16/14 H04W24/00 H04W74/0808

    Abstract: A method, wireless controller, and information processing system are provided to dynamically allocate spectrum sensing resources. A first input (804) including available sensing session time for performing spectrum sensing with respect to one or more primary systems (102) is received. A second input (806) including a set of communication channels to be monitored in the spectrum sensing session is received. A third input (808) including detection constraints associated with a plurality of available sensing nodes (114) in a secondary network (104) for performing the spectrum sensing is received. Spectrum sensing resources are dynamically allocated (814) among a set of the plurality of available sensing nodes (114) based on the first (804), second (806), and third inputs (808).

    Abstract translation: 提供了一种方法,无线控制器和信息处理系统,以动态分配频谱感测资源。 接收包括用于对一个或多个主系统(102)执行频谱感测的可用感测会话时间的第一输入(804)。 接收包括在频谱感测会话中要监视的一组通信信道的第二输入(806)。 接收包括与用于执行频谱感测的辅助网络(104)中的多个可用感测节点(114)相关联的检测约束的第三输入(808)。 基于第一(804),第二(806)和第三输入(808),频谱感测资源在多个可用感测节点(114)的集合中被动态分配(814)。

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