Optimized Uplink Performance via Antenna Selection
    1.
    发明申请
    Optimized Uplink Performance via Antenna Selection 审中-公开
    通过天线选择优化上行链路性能

    公开(公告)号:US20130265889A1

    公开(公告)日:2013-10-10

    申请号:US13442469

    申请日:2012-04-09

    IPC分类号: H04W24/00

    摘要: Embodiments of the disclosure provide systems and methods for improving user equipment performance in up-link transmission by implementing antenna selection based on channel measurements in the down-link. In various embodiments, first and second antennas are used to receive desired signals on a downlink and to transmit signals on an uplink. A plurality of signals received on the downlink are used to generate a plurality of antenna parameter measurements derived from multiple correlations of a known reference sequence of data signals transmitted on the downlink. The plurality of antenna parameter measurements is then used to select either the first antenna or the second antenna for transmitting data signals by said user equipment device on the uplink.

    摘要翻译: 本公开的实施例提供了通过基于下行链路中的信道测量来实现天线选择来改善上行链路传输中的用户设备性能的系统和方法。 在各种实施例中,第一和第二天线用于在下行链路上接收所需信号,并在上行链路上传输信号。 在下行链路上接收的多个信号用于产生从在下行链路上发送的已知参考数据信号序列的多个相关性导出的多个天线参数测量。 然后,多个天线参数测量用于选择第一天线或第二天线,用于在上行链路上由所述用户设备设备发送数据信号。

    Optimized Uplink Performance via Antenna Selection
    2.
    发明申请
    Optimized Uplink Performance via Antenna Selection 有权
    通过天线选择优化上行链路性能

    公开(公告)号:US20130265890A1

    公开(公告)日:2013-10-10

    申请号:US13442500

    申请日:2012-04-09

    摘要: Embodiments of the invention provide systems and methods for improving user equipment performance in up-link transmission by implementing antenna selection based on channel measurements in the down-link. In various embodiments, first and second antennas are used to receive signals on a downlink and to transmit signals on an uplink. A plurality of signals received on the downlink are used to generate a plurality of antenna parameter measurements derived from multiple correlations of a known reference sequence of data signals transmitted on the downlink. The plurality of antenna parameter measurements is then used to select either the first antenna or the second antenna or a combination of both through splitting of the signal for transmitting data signals by said user equipment device on the uplink.

    摘要翻译: 本发明的实施例提供了通过基于下行链路中的信道测量实现天线选择来提高上行链路传输中的用户设备性能的系统和方法。 在各种实施例中,第一和第二天线用于在下行链路上接收信号并且在上行链路上发送信号。 在下行链路上接收的多个信号用于产生从在下行链路上发送的已知参考数据信号序列的多个相关性导出的多个天线参数测量。 然后,多个天线参数测量用于通过在上行链路上分离用于由用户设备设备发送数据信号的信号,来选择第一天线或第二天线或两者的组合。

    Optimized uplink performance via antenna selection
    3.
    发明授权
    Optimized uplink performance via antenna selection 有权
    通过天线选择优化上行链路性能

    公开(公告)号:US08953474B2

    公开(公告)日:2015-02-10

    申请号:US13442500

    申请日:2012-04-09

    IPC分类号: H04L12/26 H04W4/00

    摘要: Embodiments of the invention provide systems and methods for improving user equipment performance in up-link transmission by implementing antenna selection based on channel measurements in the down-link. In various embodiments, first and second antennas are used to receive signals on a downlink and to transmit signals on an uplink. A plurality of signals received on the downlink are used to generate a plurality of antenna parameter measurements derived from multiple correlations of a known reference sequence of data signals transmitted on the downlink. The plurality of antenna parameter measurements is then used to select either the first antenna or the second antenna or a combination of both through splitting of the signal for transmitting data signals by said user equipment device on the uplink.

    摘要翻译: 本发明的实施例提供了通过基于下行链路中的信道测量实现天线选择来提高上行链路传输中的用户设备性能的系统和方法。 在各种实施例中,第一和第二天线用于在下行链路上接收信号并且在上行链路上发送信号。 在下行链路上接收的多个信号用于产生从在下行链路上发送的已知参考数据信号序列的多个相关性导出的多个天线参数测量。 然后,多个天线参数测量用于通过在上行链路上分离用于由用户设备设备发送数据信号的信号,来选择第一天线或第二天线或两者的组合。

    METHOD AND APPARATUS FOR ANTI-EAVESDROPPING IN VUNERABLE NFC APPLICATIONS
    4.
    发明申请
    METHOD AND APPARATUS FOR ANTI-EAVESDROPPING IN VUNERABLE NFC APPLICATIONS 有权
    用于在可行的NFC应用中进行抗EAVESDROPPING的方法和装置

    公开(公告)号:US20150038074A1

    公开(公告)日:2015-02-05

    申请号:US13957123

    申请日:2013-08-01

    IPC分类号: H04B5/00

    摘要: A system and method may dynamically (a) adjust signal characteristics of individual portions of a Near Field Communication (“NFC”) transmission, and/or (b) change NFC wireless communication channels. A transmitting device may transmit to a receiving device via multiple NFC channels. For instance, a transmitting device may have multiple spatially-separated antennas and/or transmitters, and a transmission required to complete a financial transaction (or other wireless communication) with a receiving device may have several portions. Each transmission portion may be sequentially and/or individually transmitted from the transmitting device to the receiving device using a different antenna and/or transmitter, i.e., a different communication channel. Each channel may use (1) a different antenna and/or transmitter located on the transmitting device, and/or (2) a different level or setting of a signal characteristic, such as transmit at a different power level, phase, frequency, or other characteristic than other channels. As a result, eavesdropping may be inhibited.

    摘要翻译: 系统和方法可以动态地(a)调整近场通信(“NFC”)传输的各个部分的信号特征,和/或(b)改变NFC无线通信信道。 发送设备可以经由多个NFC信道向接收设备发送。 例如,发送设备可以具有多个空间分离的天线和/或发射机,并且与接收设备完成金融交易(或其他无线通信)所需的传输可以具有多个部分。 每个传输部分可以使用不同的天线和/或发射机,即不同的通信信道,从发射装置顺序地和/或单独发射到接收装置。 每个信道可以使用(1)位于发射设备上的不同天线和/或发射机,和/或(2)信号特性的不同等级或设置,例如在不同功率电平,相位,频率或 其他特点比其他渠道。 结果,窃听可能被禁止。

    Perturbation-based dynamic measurement of antenna impedance in real-time
    6.
    发明授权
    Perturbation-based dynamic measurement of antenna impedance in real-time 有权
    实时基于扰动的天线阻抗动态测量

    公开(公告)号:US09331723B2

    公开(公告)日:2016-05-03

    申请号:US14357404

    申请日:2011-11-14

    IPC分类号: H04B1/04 H03H7/40

    摘要: Devices and methods are disclosed for real-time calibration of a tunable matching network that matches the dynamic impedance of an antenna in a receiver. Processing logic is operable to solve multiple non-linear equations to determine the reflection coefficient of the antenna. The tunable matching network is repeatedly perturbed and the power received by the antenna is measured after each perturbation at the same node in the matching network. The measured power values are used by an optimizer in converging to a solution that provides the reflection coefficient of the antenna. The reflection coefficient of the antenna may be used to determine the input impedance of the antenna. The elements of the matching circuit may then be adjusted to match the input impedance of the antenna.

    摘要翻译: 公开了用于实时校准与接收机中的天线的动态阻抗匹配的可调谐匹配网络的装置和方法。 处理逻辑可操作以解决多个非线性方程式以确定天线的反射系数。 可调谐匹配网络被重复地扰动,并且在匹配网络中的相同节点处的每个扰动之后测量由天线接收的功率。 测量的功率值被优化器用于收敛到提供天线的反射系数的解。 天线的反射系数可以用于确定天线的输入阻抗。 然后可以调整匹配电路的元件以匹配天线的输入阻抗。

    METHODS AND APPARATUS TO CONTROL MUTUAL COUPLING BETWEEN ANTENNAS
    7.
    发明申请
    METHODS AND APPARATUS TO CONTROL MUTUAL COUPLING BETWEEN ANTENNAS 有权
    用于控制天线之间的相互耦合的方法和装置

    公开(公告)号:US20140011460A1

    公开(公告)日:2014-01-09

    申请号:US13542686

    申请日:2012-07-06

    IPC分类号: H04B7/00

    摘要: A system that incorporates teachings of the subject disclosure may include, for example, a method for comparing a received signal from a first antenna to a reference signal transmitted by a second antenna, determining from the comparison one or more compensation parameters, and tuning a compensation circuit according to the one or more compensation parameters, where the one or more compensations parameters configure the compensation circuit to reduce mutual coupling between the first and second antennas. Other embodiments are disclosed.

    摘要翻译: 结合本公开的教导的系统可以包括例如用于将来自第一天线的接收信号与由第二天线发送的参考信号进行比较的方法,从比较确定一个或多个补偿参数,以及调整补偿 电路,其中所述一个或多个补偿参数配置所述补偿电路以减少所述第一和第二天线之间的相互耦合。 公开了其他实施例。

    Radiation power level control system and method for a wireless communication device having tunable elements
    8.
    发明授权
    Radiation power level control system and method for a wireless communication device having tunable elements 有权
    具有可调元件的无线通信装置的辐射功率电平控制系统和方法

    公开(公告)号:US08995938B2

    公开(公告)日:2015-03-31

    申请号:US13295883

    申请日:2011-11-14

    IPC分类号: H01Q11/12 H04B1/04 H04W52/36

    CPC分类号: H04B1/3838 H04W52/367

    摘要: A radiation power level compliance and control scheme for a wireless user equipment (UE) device including one or more tunable elements. The wireless UE device comprises a component configured to detect one or more changes with respect to at least one operational parameter associated with the wireless UE device. A component is provided for determining that a tunable action is required with respect to at least one of the tunable elements. Upon defining one or more tunable element settings, a component is configured to determine a Specific Absorption Rate (SAR) value, which is compared against an acceptable limit. If the SAR is within the limit, appropriate tuning control signals are provided to the tunable elements according to the defined tunable element settings. If the SAR is not within the limit or is about to exceed the limit, then the tunable element settings may be changed and retested.

    摘要翻译: 一种用于包括一个或多个可调谐元件的无线用户设备(UE)设备的辐射功率电平一致性和控制方案。 无线UE设备包括被配置为检测关于与无线UE设备相关联的至少一个操作参数的一个或多个变化的组件。 提供了一种用于确定相对于至少一个可调谐元件需要可调谐动作的组件。 在定义一个或多个可调谐元件设置时,组件被配置为确定特定吸收率(SAR)值,其与可接受的极限进行比较。 如果SAR处于限制范围内,则可根据定义的可调谐元件设置向可调谐元件提供适当的调谐控制信号。 如果SAR不在极限内或即将超过限制,则可调参数设置可能会被更改并重新测试。

    Antenna assembly with electrically extended ground plane arrangement and associated method
    9.
    发明授权
    Antenna assembly with electrically extended ground plane arrangement and associated method 有权
    具有电气扩展接地平面布置和相关方法的天线组件

    公开(公告)号:US08779991B2

    公开(公告)日:2014-07-15

    申请号:US12765581

    申请日:2010-04-22

    IPC分类号: H01Q1/24

    CPC分类号: H01Q1/243 H01Q9/0421

    摘要: Antenna assembly having an electrically or virtually extended ground plane, adapted for use in a mobile communications device, for example. The antenna assembly comprises at least one radiation element having an operating frequency and a ground plane coupled to the radiation element. At least one conductive member is electrically coupled to the ground plane at one or more connection points such that the conductive member forms a loop with the ground plane having a minimum distance therefrom that is less than a predetermined fraction of one wavelength of the operating frequency.

    摘要翻译: 天线组件具有例如适于在移动通信设备中使用的电或实际扩展的接地平面。 天线组件包括具有工作频率的至少一个辐射元件和耦合到辐射元件的接地平面。 至少一个导电构件在一个或多个连接点处电耦合到接地平面,使得导电构件形成环路,其中接地平面具有小于工作频率的一个波长的预定部分的距离。