MULTICARRIER PACKET COMMUNICATION SYSTEM
    1.
    发明申请
    MULTICARRIER PACKET COMMUNICATION SYSTEM 审中-公开
    MULTICARRIER分组通信系统

    公开(公告)号:US20130286943A1

    公开(公告)日:2013-10-31

    申请号:US13926122

    申请日:2013-06-25

    Abstract: Messages transmitted between a receiver and a transmitter are used to maximize a communication data rate. In particular, a multicarrier modulation system uses messages that are sent from the receiver to the transmitter to exchange one or more sets of optimized communication parameters. The transmitter then stores these communication parameters and when transmitting to that particular receiver, the transmitter utilizes the stored parameters in an effort to maximize the data rate to that receiver. Likewise, when the receiver receives packets from that particular transmitter, the receiver can utilize the stored communication parameters for reception.

    Abstract translation: 在接收机和发射机之间传输的消息用于最大化通信数据速率。 具体地,多载波调制系统使用从接收机发送到发射机的消息来交换一组或多组优化的通信参数。 然后,发射机存储这些通信参数,并且当发送到该特定接收机时,发射机利用所存储的参数来努力最大化到该接收机的数据速率。 类似地,当接收机从该特定发射机接收分组时,接收机可以利用存储的通信参数进行接收。

    Traffic prediction in wireless communication networks
    3.
    发明申请
    Traffic prediction in wireless communication networks 审中-公开
    无线通信网络中的流量预测

    公开(公告)号:US20070230378A1

    公开(公告)日:2007-10-04

    申请号:US11394494

    申请日:2006-03-31

    CPC classification number: H04W52/0219 H04B17/3913 Y02D70/142

    Abstract: A method in a first station comprises monitoring a network allocation vector in a wireless network; using the network allocation vector to predict an access pattern, e.g., periodic access for a given duration, by a second station in the wireless network; and performing a response based on the predicted access pattern. The response may include modifying a MAC layer parameter, e.g., TXOP or a prediction backoff value, and/or a physical layer parameter, in the first station based on the predicted access pattern. The response may include informing a neighboring network of the predicted access pattern, causing the first station to enter a power-saving mode during times based on the predicted access pattern of the second station, or determining whether to connect the first station into the wireless network. The first station and/or second station may include a client station or an access point.

    Abstract translation: 第一站中的方法包括监视无线网络中的网络分配向量; 使用所述网络分配向量来预测所述无线网络中的第二站的访问模式,例如给定持续时间的周期性访问; 以及基于预测的访问模式执行响应。 响应可以包括基于预测的访问模式来修改第一站中的MAC层参数,例如,TXOP或预测退避值和/或物理层参数。 响应可以包括通知相邻网络预测的访问模式,使得第一站在基于第二站的预测访问模式的时间期间进入功率节省模式,或者确定是否将第一站连接到无线网络 。 第一站和/或第二站可以包括客户站或接入点。

    System and method for adjusting BER/PER to increase network stream-based transmission rates
    4.
    发明申请
    System and method for adjusting BER/PER to increase network stream-based transmission rates 审中-公开
    用于调整BER / PER的系统和方法,以增加基于网络流的传输速率

    公开(公告)号:US20070033496A1

    公开(公告)日:2007-02-08

    申请号:US11429020

    申请日:2006-05-04

    CPC classification number: H04L1/1838 H04L1/0017

    Abstract: A transmitting method obtains a data packet of a data-type to be transmitted via a computer network to a receiving system; appends a retry flag to the data packet, the retry flag based on the data-type, the retry flag indicating whether the receiving system may attempt a retransmission; and transmits the data packet to the receiving system. When the data-type is one of voice, video or audio data, the retry flag may indicate that the receiving system should not attempt retransmission. The method may also comprise appending an error-correction algorithm ID based on the data-type to the data packet. A receiving method receives the data packet; and when a bit or packet error is identified then initiating a retransmission if the retry flag so commands. When the retry flag indicates that a retransmission should not occur, the receiving method may initiate an error correction algorithm identified in the data packet.

    Abstract translation: 发送方法获得要经由计算机网络发送到接收系统的数据类型的数据分组; 将重试标志附加到数据分组,基于数据类型的重试标志,指示接收系统是否可能尝试重传的重试标志; 并将数据分组发送到接收系统。 当数据类型是语音,视频或音频数据之一时,重试标志可以指示接收系统不应该尝试重传。 该方法还可以包括将数据类型的纠错算法ID附加到数据分组。 接收方法接收数据包; 并且当识别出位或分组错误时,如果重试标志如此命令则启动重传。 当重试标志指示不应发生重传时,接收方法可以启动在数据分组中识别的纠错算法。

    System and method for precise DTMF signal detection
    5.
    发明授权
    System and method for precise DTMF signal detection 失效
    用于精确DTMF信号检测的系统和方法

    公开(公告)号:US06560331B1

    公开(公告)日:2003-05-06

    申请号:US09407829

    申请日:1999-09-28

    CPC classification number: H04Q1/4575

    Abstract: A method and system for facilitating the detection of DTMF tones is disclosed. The method is based on detecting two tones using a modified nonuniform discrete Fourier transform that includes a phase correction term for each DTMF tone and harmonic. The disclosed method is employed by a DTMF detector that includes a sampling module, a computation module, an analysis module, and a decode module. The sampling module samples an input signal from a communication network at a rate sufficient to avoid data loss. The sample signal is then placed through a modified DFT which is more precise than filters or analog devices, particularly those utilizing a Goertzel algorithm. The computation module implements a fast recursive algorithm for completing the necessary computations. The analysis module checks for the present of energy level peaks at the DTMF tones and their harmonics. Once a DTMF signal is verified to contain a DTMF tone, the decode module transmits the,number, letter, or symbol to an interface.

    Abstract translation: 公开了一种便于检测DTMF音调的方法和系统。 该方法基于使用修改的非均匀离散傅立叶变换来检测两个音调,其包括每个DTMF​​音调和谐波的相位校正项。 所公开的方法由包括采样模块,计算模块,分析模块和解码模块的DTMF检测器采用。 采样模块以足以避免数据丢失的速率对来自通信网络的输入信号进行采样。 样本信号然后通过修改的DFT放置,该DFT比滤波器或模拟装置更精确,特别是使用Goertzel算法的那些。 计算模块实现快速递归算法,用于完成必要的计算。 分析模块检查在DTMF音调及其谐波处的能量峰值的存在。 一旦DTMF信号被验证为包含DTMF音,则解码模块将数字,字母或符号发送到接口。

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