Digital and analog power control for an OFDMA/CDMA access terminal
    51.
    发明授权
    Digital and analog power control for an OFDMA/CDMA access terminal 有权
    用于OFDMA / CDMA接入终端的数字和模拟功率控制

    公开(公告)号:US08095166B2

    公开(公告)日:2012-01-10

    申请号:US12055264

    申请日:2008-03-25

    IPC分类号: H04B7/00

    摘要: Aspects describe controlling a power level for an access terminal in a wireless communication system that utilizes multiple modulation waveforms. The power can be controlled after an Access Grant is received in response to an Access Probe until the mobile device transitions into a steady state. A reference power can be continuously monitored and a setting of a power amplifier can be modified only when the reference power changes. A digital gain of a reverse data channel can be adjusted relative to the reference power level.

    摘要翻译: 方面描述了在利用多个调制波形的无线通信系统中控制接入终端的功率电平。 在接收到访问准则后,可以控制功率,直到移动设备转换到稳定状态。 可以连续地监视参考功率,并且仅当参考功率改变时才能修改功率放大器的设置。 可以相对于参考功率电平调整反向数据通道的数字增益。

    REMOVAL OF MULTIPLICATIVE ERRORS IN FREQUENCY DOMAIN CHANNEL ESTIMATION FOR WIRELESS REPEATERS
    53.
    发明申请
    REMOVAL OF MULTIPLICATIVE ERRORS IN FREQUENCY DOMAIN CHANNEL ESTIMATION FOR WIRELESS REPEATERS 审中-公开
    无线重复频域频域估计中的多重误差的去除

    公开(公告)号:US20110116531A1

    公开(公告)日:2011-05-19

    申请号:US12776786

    申请日:2010-05-10

    IPC分类号: H04L25/20

    摘要: A method for estimating a feedback channel for a wireless repeater uses frequency domain channel estimation and uses a signal indicative of the amplified signal as a pilot signal. The channel estimation method generates a time domain feedback channel estimate from the frequency domain channel estimation and scales the time domain feedback channel estimate using scaling factors. In one embodiment, the scaling factors are function of a tap index and the block size of the frequency domain channel estimation.

    摘要翻译: 用于估计无线中继器的反馈信道的方法使用频域信道估计,并且使用表示放大的信号的信号作为导频信号。 信道估计方法从频域信道估计生成时域反馈信道估计,并使用缩放因子来缩放时域反馈信道估计。 在一个实施例中,缩放因子是抽头索引和频域信道估计的块大小的函数。

    SELF-INTERFERENCE CANCELLATION FOR MULTICHANNEL MODEMS
    54.
    发明申请
    SELF-INTERFERENCE CANCELLATION FOR MULTICHANNEL MODEMS 有权
    多通道模式的自干扰消除

    公开(公告)号:US20110026567A1

    公开(公告)日:2011-02-03

    申请号:US12510474

    申请日:2009-07-28

    IPC分类号: H04B1/38

    CPC分类号: H04B1/525 H04B1/0032

    摘要: A method for detecting and reducing aliasing is described. The method may be implemented by a first wireless device. A first signal may be transmitted on a first frequency channel. A second signal may be received on a second frequency channel. The second signal may be received concurrently with the transmission of the first signal. Aliasing of the first signal on the second signal may be detected. Aliasing may be reduced.

    摘要翻译: 描述了一种用于检测和减少混叠的方法。 该方法可以由第一无线设备来实现。 可以在第一频率信道上发送第一信号。 可以在第二频率信道上接收第二信号。 可以与第一信号的传输同时接收第二信号。 可以检测第二信号上的第一信号的混叠。 混淆可能会减少。

    DELAY CONTROL TO IMPROVE FREQUENCY DOMAIN CHANNEL ESTIMATION IN AN ECHO CANCELLATION REPEATER
    56.
    发明申请
    DELAY CONTROL TO IMPROVE FREQUENCY DOMAIN CHANNEL ESTIMATION IN AN ECHO CANCELLATION REPEATER 有权
    延迟控制以提高ECHO CANCELLATION REPEATER中的频域信道估计

    公开(公告)号:US20100285735A1

    公开(公告)日:2010-11-11

    申请号:US12609796

    申请日:2009-10-30

    IPC分类号: H04B7/14

    摘要: A wireless repeater has a receiving antenna for receiving an input signal and a transmitting antenna for transmitting an amplified signal where the input signal is a sum of a remote signal and a feedback signal. The repeater includes an echo canceller receiving the input signal and generating an echo cancelled signal by estimating a feedback channel between the transmitting antenna and the receiving antenna and cancelling a feedback signal estimate from the input signal, an amplifier for amplifying the echo cancelled signal and providing the amplified signal to the transmitting antenna, and a variable delay element receiving the echo cancelled signal and introducing a first delay to the echo cancelled signal. The first delay is selected to optimize the estimation of the feedback channel, thereby optimizing the cancellation of the feedback signal. The delayed echo cancelled signal is coupled to the echo canceller as a reference signal for estimating the feedback channel.

    摘要翻译: 无线中继器具有用于接收输入信号的接收天线和用于发送放大信号的发送天线,其中输入信号是远程信号和反馈信号之和。 中继器包括回波消除器,其接收输入信号并通过估计发射天线和接收天线之间的反馈信道并从输入信号中消除反馈信号估计来产生回波消除信号,放大器用于放大回波消除信号并提供 向发射天线的放大信号,以及接收回声消除信号的可变延迟元件,并向回波消除信号引入第一延迟。 选择第一延迟以优化反馈信道的估计,从而优化反馈信号的消除。 延迟回波消除信号耦合到回波消除器作为用于估计反馈信道的参考信号。

    DETERMINING PER SECTOR RECEIVED POWER LEVEL
    57.
    发明申请
    DETERMINING PER SECTOR RECEIVED POWER LEVEL 有权
    确定每个部门接收的电力水平

    公开(公告)号:US20080242294A1

    公开(公告)日:2008-10-02

    申请号:US12054175

    申请日:2008-03-24

    IPC分类号: H04Q7/20 H04M1/00

    摘要: At a mobile device, a total received power represents signals received from all access points. In order to calculate an appropriate transmit power for communication with a single access point, a mobile device determines a per sector received power level. The mobile device can ascertain a time-domain channel response from each access point pilot signal, ascertain a received digital power lever per sector from each access point pilot signal and, based in part on the digital power level, calculate a received power level from each access point. A per sector received power level can be utilized to conserve battery power and/or to reduce interference in a wireless communications network.

    摘要翻译: 在移动设备处,总接收功率表示从所有接入点接收的信号。 为了计算用于与单个接入点通信的适当发射功率,移动设备确定每扇区接收的功率电平。 移动设备可以确定来自每个接入点导频信号的时域信道响应,从每个接入点导频信号确定每扇区接收到的数字功率控制器,并且部分地基于数字功率电平,从每个接入点导频信号计算每个接入点导频信号的接收功率电平 切入点。 可以利用每扇区接收的功率电平来节省电池功率和/或减少无线通信网络中的干扰。

    Adjusting repeater gains based upon received downlink power level
    58.
    发明授权
    Adjusting repeater gains based upon received downlink power level 有权
    基于接收到的下行链路功率电平调整中继器增益

    公开(公告)号:US08937874B2

    公开(公告)日:2015-01-20

    申请号:US13243899

    申请日:2011-09-23

    IPC分类号: H04L12/26 H04B7/155

    CPC分类号: H04B7/15578

    摘要: A method of controlling gains within a repeater may include determining a power control set point value which controls a transmit power of a mobile station (MS), and receiving a downlink signal from a base station transceiver system (BTS). The method may further include measuring a power of the received downlink signal, and computing a power level of a signal expected at the uplink of the repeater, wherein the computing is based on the measured downlink power and the power control set point value. Finally, the method may further include adjusting a gain of at least one amplifier based on the computed power level. An apparatus for controlling gains in a repeater may include a baseband processor for performing the above method.

    摘要翻译: 控制中继器内的增益的方法可以包括确定控制移动台(MS)的发射功率的功率控制设定点值,以及从基站收发信机(BTS)接收下行链路信号。 该方法还可以包括测量所接收的下行链路信号的功率,以及计算在中继器的上行链路上预期的信号的功率电平,其中所述计算基于所测量的下行链路功率和功率控制设定点值。 最后,该方法还可以包括基于所计算的功率电平来调整至少一个放大器的增益。 用于控制中继器中的增益的装置可以包括用于执行上述方法的基带处理器。

    Selective carrier amplification in a wireless repeater
    60.
    发明授权
    Selective carrier amplification in a wireless repeater 有权
    无线中继器中的选择性载波放大

    公开(公告)号:US08861429B2

    公开(公告)日:2014-10-14

    申请号:US13155276

    申请日:2011-06-07

    IPC分类号: H04W88/04

    CPC分类号: H04B7/15542

    摘要: A method in a wireless repeater selects one or more carriers out of all carriers for amplification and transmission. The non-selected carriers may be blocked to mitigate delay spread, uplink noise contribution or other effects on the repeater environment due to multiple repeaters. The carriers may be selected based on signal characteristics, signal usage, and/or other parameters.

    摘要翻译: 无线中继器中的方法从所有载波中选择一个或多个载波进行放大和发送。 由于多个中继器,可以阻止未选择的载波以减轻延迟扩展,上行链路噪声贡献或对中继器环境的其他影响。 可以基于信号特性,信号使用和/或其他参数来选择载波。