Methods and apparatus for implementing and/or using amplifiers and/or for performing various amplification related operations
    33.
    发明申请
    Methods and apparatus for implementing and/or using amplifiers and/or for performing various amplification related operations 失效
    用于实现和/或使用放大器和/或执行各种放大相关操作的方法和装置

    公开(公告)号:US20060290549A1

    公开(公告)日:2006-12-28

    申请号:US11477149

    申请日:2006-06-27

    IPC分类号: H03M3/00

    摘要: Methods and apparatus for implementing and/or using amplifiers and performing various amplification related operations are described. The methods are well suited for use with, but not limited to, switching type amplifiers. The methods and apparatus described herein allow for the use of switching amplifiers while reducing and/or compensating for distortions that the use of such amplifiers would normally create. The described methods and apparatus can be used alone or in combination with various novel signaling schemes which can make it easier to compensate for the non-ideal behavior of switching amplifiers in such a way as to enable practical application in wireless transmission and/or other applications.

    摘要翻译: 描述了用于实现和/或使用放大器并执行各种放大相关操作的方法和装置。 这些方法非常适用于但不限于开关型放大器。 本文描述的方法和装置允许使用开关放大器,同时减少和/或补偿通常使用这种放大器的失真。 所描述的方法和装置可以单独使用或与各种新颖的信令方案组合使用,这可以使得更容易以这样的方式补偿开关放大器的非理想行为,使得无线传输和/或其他应用中的实际应用 。

    Efficient automatic repeat request methods and apparatus
    37.
    发明授权
    Efficient automatic repeat request methods and apparatus 有权
    高效的自动重复请求方法和装置

    公开(公告)号:US07813322B2

    公开(公告)日:2010-10-12

    申请号:US10780539

    申请日:2004-02-17

    IPC分类号: H04L1/00

    摘要: Different NAK signals are used to indicate different relative levels of success in regard to an unsuccessful attempt to decode a received signal. An ACK signal is used in the case of successful decoding. The device which generated and transmitted the original encoded signal receives the NAK signal and selects a portion of redundant information, e.g., additional error correction bits, to be transmitted based on the value of the NAK signal. If the NAK signal indicates a low level of decoding success indicating a relatively large number of errors in the decoded signal, a large set of redundant information is selected and transmitted. If the NAK signal indicates a relatively successful decoding, e.g., relatively few errors, a small set of redundant information is selected and transmitted. Where a small set of redundant information is transmitted new information can be transmitted with the redundant information.

    摘要翻译: 不同的NAK信号用于指示不成功尝试对接收到的信号进行解码的成功的相对水平。 在成功解码的情况下使用ACK信号。 生成并发送原始编码信号的装置接收NAK信号,并根据NAK信号的值选择要发送的冗余信息的一部分,例如附加的纠错位。 如果NAK信号表示在解码信号中指示相对大量错误的解码成功的低电平,则选择并发送大量冗余信息。 如果NAK信号指示相对成功的解码,例如相对较少的错误,则选择并发送一小组冗余信息。 在发送一小组冗余信息的情况下,可以用冗余信息传输新信息。

    Methods and apparatus related to composite beacon and wideband synchronization signaling
    38.
    发明授权
    Methods and apparatus related to composite beacon and wideband synchronization signaling 有权
    与复合信标和宽带同步信令相关的方法和装置

    公开(公告)号:US07801227B2

    公开(公告)日:2010-09-21

    申请号:US11486881

    申请日:2006-07-14

    IPC分类号: H04K1/00

    摘要: A composite signal includes a high power beacon signal and low power corresponding wideband synchronization signal and is communicated over a time interval exceeding a single OFDM transmission time interval. A base station transmits one or more different such composite broadcast signals in a recurring timing structure. Each different potential beacon signal, e.g., a single tone signal, is paired with a unique wideband synchronization signal. A wideband synchronization signal includes at least some predetermined null tones and at least some predetermined non-null tones. For a given wideband synchronization signal, the predetermined null tones carry predetermined modulation symbol values, A wireless terminal receives a composite signal, identifies a beacon, determines a corresponding known wideband synchronization signal, compares received to known wideband synchronization signals, and determines at least one of a timing adjustment, frequency adjustment and channel estimation.

    摘要翻译: 复合信号包括高功率信标信号和低功率对应的宽带同步信号,并且在超过单个OFDM传输时间间隔的时间间隔上传送。 基站以循环定时结构发送一个或多个不同的这种复合广播信号。 每个不同的潜在信标信号,例如单个音调信号,与唯一的宽带同步信号配对。 宽带同步信号至少包括一些预定的无效音调和至少一些预定的非空音调。 对于给定的宽带同步信号,预定的空音携带预定的调制符号值,A无线终端接收复合信号,识别信标,确定对应的已知宽带同步信号,将已接收的已知宽带同步信号进行比较,并确定至少一个 定时调整,频率调整和信道估计。