Methods and apparatus for implementing and/or using amplifiers and/or for performing various amplification related operations
    12.
    发明授权
    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:US07405686B2

    公开(公告)日:2008-07-29

    申请号:US11477149

    申请日:2006-06-27

    IPC分类号: H03M3/00 H03M1/06

    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 。

    In-band ate indicator methods and apparatus
    14.
    发明授权
    In-band ate indicator methods and apparatus 有权
    带内指示方法和装置

    公开(公告)号:US08452294B2

    公开(公告)日:2013-05-28

    申请号:US11229019

    申请日:2005-09-16

    IPC分类号: H04W72/00 H04W4/00

    摘要: Downlink traffic channel data rate options and methods of indicating to a wireless terminal a utilized downlink data rate option are described. The downlink traffic channel rate option for a segment is conveyed using an assignment signal and/or a block in the downlink traffic channel segment which is not used for user data. Downlink segment assignment signals in some implementations allocate fewer bits for rate option indication than are required to uniquely identify each option. In some implementations low rate options, e.g., using QPSK, are uniquely identified via assignment signals. Higher rate options, e.g., using QAM16 modulation, are conveyed via the distinct information block in the downlink traffic segment using a first coding/modulation method. Still higher rate options, e.g., using QAM16, QAM64, or QAM256, are conveyed via the information block in the segment using a second coding/modulation method which is applied to the rate option information.

    摘要翻译: 下行业务信道数据速率选项和向无线终端指示使用的下行链路数据速率选项的方法进行描述。 使用未用于用户数据的下行链路业务信道段中的分配信号和/或块来传送段的下行业务信道速率选项。 在一些实现中的下行链路段分配信号比用于唯一地标识每个选项所需的比特率分配更少的比特选项指示。 在一些实现中,通过分配信号唯一地识别低速率选项,例如使用QPSK。 使用第一编码/调制方法,通过下行链路业务段中的不同信息块传送更高速率选项,例如使用QAM16调制。 使用应用于速率选项信息的第二编码/调制方法,通过片段中的信息块传送诸如使用QAM16,QAM64或QAM256的更高速率选项。

    Methods and apparatus for implementing and using an in-band rate indicator
    15.
    发明授权
    Methods and apparatus for implementing and using an in-band rate indicator 有权
    用于实现和使用带内速率指标的方法和装置

    公开(公告)号:US07936831B2

    公开(公告)日:2011-05-03

    申请号:US11229040

    申请日:2005-09-16

    IPC分类号: H04L27/00

    摘要: Downlink traffic channel data rate options and methods of indicating to a wireless terminal a utilized downlink data rate option are described. The downlink traffic channel rate option for a segment is conveyed using an assignment signal and/or a block in the downlink traffic channel segment which is not used for user data. Downlink segment assignment signals in some implementations allocate fewer bits for rate option indication than are required to uniquely identify each option. In some implementations low rate options, e.g., using QPSK, are uniquely identified via assignment signals. Higher rate options, e.g., using QAM16 modulation, are conveyed via the distinct information block in the downlink traffic segment using a first coding/modulation method. Still higher rate options, e.g., using QAM16, QAM64, or QAM256, are conveyed via the information block in the segment using a second coding/modulation method which is applied to the rate option information.

    摘要翻译: 下行业务信道数据速率选项和向无线终端指示使用的下行链路数据速率选项的方法进行描述。 使用未用于用户数据的下行链路业务信道段中的分配信号和/或块来传送段的下行业务信道速率选项。 在一些实现中的下行链路段分配信号比用于唯一地标识每个选项所需的比特率分配更少的比特选项指示。 在一些实现中,通过分配信号唯一地识别低速率选项,例如使用QPSK。 使用第一编码/调制方法,通过下行链路业务段中的不同信息块传送更高速率选项,例如使用QAM16调制。 使用应用于速率选项信息的第二编码/调制方法,通过片段中的信息块传送诸如使用QAM16,QAM64或QAM256的更高速率选项。

    Amplification method and apparatus
    16.
    发明授权
    Amplification method and apparatus 有权
    扩增方法和装置

    公开(公告)号:US07289050B1

    公开(公告)日:2007-10-30

    申请号:US11477139

    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 。

    Methods and apparatus for providing base station position information and using position information to support timing and/or frequency corrections
    17.
    发明授权
    Methods and apparatus for providing base station position information and using position information to support timing and/or frequency corrections 有权
    用于提供基站位置信息和使用位置信息以支持定时和/或频率校正的方法和装置

    公开(公告)号:US08798638B2

    公开(公告)日:2014-08-05

    申请号:US11216973

    申请日:2005-08-31

    IPC分类号: H04W24/00

    摘要: A wireless terminal receives base station position over an airlink, determines its relative position with respect to the base station and determines a timing adjustment correction. The wireless terminal applies the determined timing correction to control uplink signaling timing and achieve synchronization at the base station's receiver. The wireless terminal determines its relative velocity with respect to the base station and determines a Doppler shift adjustment which it adds to the uplink carrier frequency or to its baseband signal. A wireless terminal determines the position of a moving base station and determines timing and/or frequency corrections. Base station position is determined from the current time and stored information correlating the base station position with time, e.g., for a geo-synchronous satellite. Base station position information is determined from broadcast information, e.g., GPS base station position, for an aircraft base station. Wireless terminals may be mobile and include a GPS receiver for WIRELESS TERMINAL position determination.

    摘要翻译: 无线终端通过空中链路接收基站位置,确定其相对于基站的相对位置,并确定定时调整校正。 无线终端应用所确定的定时校正以控制上行链路信令定时,并在基站的接收机处实现同步。 无线终端确定其相对于基站的相对速度,并确定其添加到上行链路载波频率或其基带信号的多普勒频移调整。 无线终端确定移动基站的位置并确定定时和/或频率校正。 基站位置是从当前时间确定的,并存储与基站位置和时间相关的信息,例如用于地理同步卫星。 从飞机基站的广播信息(例如,GPS基站位置)确定基站位置信息。 无线终端可以是移动的,并且包括用于WIRELESS TERMINAL位置确定的GPS接收器。

    Methods and apparatus for antenna control in a wireless terminal
    18.
    发明授权
    Methods and apparatus for antenna control in a wireless terminal 有权
    无线终端天线控制方法及装置

    公开(公告)号:US07826807B2

    公开(公告)日:2010-11-02

    申请号:US11249775

    申请日:2005-10-13

    IPC分类号: H04B1/66

    摘要: Base stations transmit strip signals using strip signal segments and self supporting modulation scheme techniques facilitating rapid channel estimate. A strip segment occupies one OFDM symbol time interval and uses a set of downlink tones; some, e.g., half, of the tones are left unused facilitating SIR measurement. The strip segments are advantageously timed to correspond to uplink access intervals in which connected wireless terminals do not typically transmit uplink signals. Connected wireless terminals including: multiple antennas used in combination, an antenna duplex module, single RF receiver chain and single RF transmitter chain, switch antenna coefficient combinations based on strip signal segment timing. The wireless terminal determines an independent downlink channel quality measurement, e.g., SNR and/or SIR for each strip signal segment and for on-going non-strip signaling. The wireless terminal compares channel quality measurements and selects an antenna coefficient combination to be used during non-strip signaling intervals obtaining very good antenna gain.

    摘要翻译: 基站使用带状信号段和自支持调制方案技术来传输带状信号,这有助于快速信道估计。 条带占用一个OFDM符号时间间隔并使用一组下行链路音调; 一些,例如一半的音调被置于未使用状态,便于SIR测量。 带状段有利地被定时以对应于其中连接的无线终端通常不发送上行链路信号的上行链路接入间隔。 连接的无线终端包括:组合使用多个天线,天线双工模块,单个射频接收机链和单个射频发射机链,基于条带信号段定时的开关天线系数组合。 无线终端确定独立的下行链路信道质量测量,例如每个条带信号段的SNR和/或SIR,以及用于正在进行的非条带信令。 无线终端比较信道质量测量并选择在非剥离信令间隔期间使用的天线系数组合,从而获得非常好的天线增益。

    Methods and apparatus of providing transmit and/or receive diversity with multiple antennas in wireless communication systems
    19.
    发明授权
    Methods and apparatus of providing transmit and/or receive diversity with multiple antennas in wireless communication systems 有权
    在无线通信系统中提供与多个天线的发射和/或接收分集的方法和装置

    公开(公告)号:US07610024B2

    公开(公告)日:2009-10-27

    申请号:US11284285

    申请日:2005-11-21

    IPC分类号: H04B7/06

    摘要: Transmit and/or receive diversity is achieved using multiple antennas. In some embodiments, a single transmitter chain within a wireless terminal is coupled over time to a plurality of transmit antennas. At any given time, a controllable switching module couples the single transmitter chain to one the plurality of transmit antennas. Over time, the switching module couples the output signals from the single transmitter chain to different transmit antennas. Switching decisions are based upon predetermined information, dwell information, and/or channel condition feedback information. Switching is performed on some dwell and/or channel estimation boundaries. In some OFDM embodiments, each of multiple transmitter chains is coupled respectively to a different transmit antenna. Information to be transmitted is mapped to a plurality of tones. Different subsets of tones are formed for and transmitted through different transmit chain/antenna sets simultaneously. The balance of tones allocated to the subsets for each antenna are changed as a function of predetermined information, dwell information, and/or channel condition feedback information.

    摘要翻译: 使用多个天线实现发射和/或接收分集。 在一些实施例中,无线终端内的单个发射机链随时间耦合到多个发射天线。 在任何给定时间,可控开关模块将单个发射机链耦合到多个发射天线中的一个。 随着时间的推移,开关模块将来自单个发射机链的输出信号耦合到不同的发射天线。 切换决定基于预定信息,停留信息和/或信道条件反馈信息。 在一些驻留和/或信道估计边界上执行切换。 在一些OFDM实施例中,多个发射机链中的每一个分别耦合到不同的发射天线。 要发送的信息被映射到多个音调。 为不同的发射链/天线组同时形成和发送不同的音调子集。 分配给每个天线的子集的音调的平衡作为预定信息,停留信息和/或信道条件反馈信息的函数而改变。

    Multiple access wireless communications system using a multisector configuration
    20.
    发明授权
    Multiple access wireless communications system using a multisector configuration 失效
    多址无线通信系统使用多节点配置

    公开(公告)号:US07388845B2

    公开(公告)日:2008-06-17

    申请号:US10640861

    申请日:2003-08-13

    IPC分类号: H04B7/212 G08C17/00

    摘要: Power control methods and apparatus for use in a sectorized cell of an OFDM communications system are described. Each sector of a cell uses the same frequencies and transmission times and is synchronized with the other sectors in the cell in terms of tone frequencies used at any given time and symbol transmission times. Tones are allocated to channels in each cell in the same manner so that each channel in a sector has a corresponding channel in another sector. Power differences between channels in different sectors are maintained to be within a pre-selected power difference. Different channels in a cell are assigned different power levels. Wireless terminals are assigned to channels based on channel feedback information. Wireless terminals with poor channel conditions are allocated to higher power channels than wireless terminals with good channel conditions. Lower power channels often include more tones per symbol time than high power channels.

    摘要翻译: 描述了在OFDM通信系统的扇区化小区中使用的功率控制方法和装置。 单元的每个扇区使用相同的频率和传输时间,并且根据在任何给定时间和符号传输时间使用的音调频率与小区中的其他扇区同步。 以相同的方式将音调分配给每个小区中的信道,使得扇区中的每个信道在另一个扇区中具有相应的信道。 不同扇区中的信道之间的功率差被维持在预先选择的功率差之内。 单元中的不同通道被分配不同的功率电平。 基于信道反馈信息将无线终端分配给信道。 具有较差信道条件的无线终端分配给具有良好信道条件的无线终端的较高功率信道。 低功率通道通常每个符号时间包括比高功率通道更多的音调。