INTERFERENCE CANCELLATION REPEATER INCORPORATING A NON-LINEAR ELEMENT
    21.
    发明申请
    INTERFERENCE CANCELLATION REPEATER INCORPORATING A NON-LINEAR ELEMENT 失效
    插入非线性元件的干扰消除中继器

    公开(公告)号:US20120287968A1

    公开(公告)日:2012-11-15

    申请号:US13106656

    申请日:2011-05-12

    CPC classification number: H04B7/15585

    Abstract: A wireless repeater employing echo cancellation uses a non-linear element in digital baseband to compress the digital transmit signal waveform, thereby allowing distortions in the transmitter circuit as well as interference to be cancelled. In one embodiment, the repeater applies non-linear baseband compression to the digital transmit signal in the digital domain to reduce the peak-to-average amplitude of the digital transmit signal prior to digital-to-analog conversion and prior to over-the-air transmission and prior to sampling of the digital transmit signal for use as the reference signal for echo cancellation. The intentionally introduced non-linear distortion in the transmit signal improves echo cancellation and stability of the repeater. In one embodiment, the non-linear compression is applied only when the digital transmit signal is at or exceed a given power level or a given gain level.

    Abstract translation: 使用回波消除的无线中继器使用数字基带中的非线性元件来压缩数字发射信号波形,从而允许发射机电路中的失真以及干扰被取消。 在一个实施例中,中继器对数字域中的数字发射信号应用非线性基带压缩,以减小在数模转换之前和之前的数字发射信号的峰均幅度, 空气传输之前和数字发射信号采样之前用作回波消除的参考信号。 有意引入发送信号中的非线性失真提高了中继器的回波消除和稳定性。 在一个实施例中,仅当数字发射信号处于或超过给定功率电平或给定增益电平时才施加非线性压缩。

    VARIABLE RATE CODING FOR FORWARD LINK
    22.
    发明申请
    VARIABLE RATE CODING FOR FORWARD LINK 审中-公开
    用于前向链路的可变速率编码

    公开(公告)号:US20120269176A1

    公开(公告)日:2012-10-25

    申请号:US13470922

    申请日:2012-05-14

    CPC classification number: H04L1/0041 H03M13/03 H04L1/0009 H04L1/0025

    Abstract: A forward error correction (FEC) block size is maintained at a constant size. Coding rate adjustments may be made by changing the number of information bits per symbol, or Forward Error Code (FEC) coding rate. Therefore, as the number of information bits per symbol is changed, the number of output bits is always maintained. The scheme permits for a greater flexibility and selection of effective data rates.

    Abstract translation: 前向纠错(FEC)块大小保持恒定的大小。 可以通过改变每个符号的信息比特数或转发错误码(FEC)编码率来进行编码速率调整。 因此,随着每个符号的信息比特数量的改变,始终保持输出比特数。 该方案允许更大的灵活性和选择有效的数据速率。

    ANTENNA CONTROL SYSTEM AND METHOD
    25.
    发明申请
    ANTENNA CONTROL SYSTEM AND METHOD 有权
    天线控制系统和方法

    公开(公告)号:US20120201199A1

    公开(公告)日:2012-08-09

    申请号:US13442513

    申请日:2012-04-09

    Abstract: A subscriber unit, including an antenna array and an antenna array interface coupled to the antenna array, is described. Wireless transmissions, at least two of which are based on different directional transmissions from a transmitter, are received at the antenna array. Feedback messages are generated using the antenna array interface. The feedback messages are communicated using the antenna array to adjust settings of the transmitter.

    Abstract translation: 描述了包括天线阵列和耦合到天线阵列的天线阵列接口的用户单元。 在天线阵列处接收至少两个基于来自发射机的不同定向传输的无线传输。 使用天线阵列接口产生反馈消息。 使用天线阵列传送反馈消息以调整发射机的设置。

    WIRELESS CHANNEL ALLOCATION IN A BASE STATION PROCESSOR
    27.
    发明申请
    WIRELESS CHANNEL ALLOCATION IN A BASE STATION PROCESSOR 有权
    基站处理器中的无线信道分配

    公开(公告)号:US20120134343A1

    公开(公告)日:2012-05-31

    申请号:US13366973

    申请日:2012-02-06

    CPC classification number: H04W28/0247 H04W72/04 H04W72/085 H04W72/12 H04W88/08

    Abstract: A system and method are provided for allocating wireless channels in a base station processor to messages sent between a subscriber and the base station processor in a wireless network. A latency period is determined corresponding to a return message to be received from a responsive node in response to an outgoing message sent from a sender via the base station processor. A latency manager in the base station processor computes the latency period and stores the latency period in an allocation table. A scheduler schedules a channel to be available at the end of the latency period indicated in the allocation table. At the end of the latency period, the return message is received and the scheduler allocates a channel as defined in the allocation table. The scheduled channel is used to transmit the message to or from the corresponding subscriber.

    Abstract translation: 提供了一种系统和方法,用于在基站处理器中为无线网络中的订户和基站处理器之间发送的消息分配无线信道。 响应于从发送者经由基站处理器发送的输出消息,确定响应于从响应节点接收的返回消息的等待时间。 基站处理器中的延迟管理器计算等待时间并将等待时间周期存储在分配表中。 调度器在分配表中指示的等待时间结束时调度可用的信道。 在等待时间结束时,接收到返回消息,并且调度器分配如分配表中所定义的信道。 调度信道用于向或从相应用户发送消息。

    FORWARD ERROR CORRECTION SCHEME FOR HIGH RATE DATA EXCHANGE IN A WIRELESS SYSTEM
    28.
    发明申请
    FORWARD ERROR CORRECTION SCHEME FOR HIGH RATE DATA EXCHANGE IN A WIRELESS SYSTEM 有权
    无线系统中高速率数据交换的前向纠错方案

    公开(公告)号:US20120042223A1

    公开(公告)日:2012-02-16

    申请号:US13278691

    申请日:2011-10-21

    CPC classification number: H04L1/0066 H04L1/0041

    Abstract: A transmitter/receiver system for high data transfer in a wireless communication system includes a physical layer processor that comprises an FEC coder, a demultiplexer and a plurality of modem processors. The FEC coder applies error correction codes to the high data rate signal. Thereafter, the demultiplexer distributes portions of the coded high data rate signal to the modem processors. Each modem processor processes its respective portion of the coded signal for transmission in an independent channel.

    Abstract translation: 在无线通信系统中用于高数据传输的发射机/接收机系统包括物理层处理器,其包括FEC编码器,解复用器和多个调制解调器处理器。 FEC编码器对高数据速率信号应用纠错码。 此后,解复用器将编码的高数据速率信号的一部分分配给调制解调处理器。 每个调制解调处理器处理编码信号的各自部分以在独立信道中传输。

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