Controlling MTD antenna VSWR and coupling for SAR control
    22.
    发明授权
    Controlling MTD antenna VSWR and coupling for SAR control 有权
    控制MTD天线VSWR和耦合用于SAR控制

    公开(公告)号:US09525203B2

    公开(公告)日:2016-12-20

    申请号:US14125174

    申请日:2012-06-21

    摘要: A method and apparatus has been developed to reduce SAR for a mobile device by designing appropriate matching circuits between each antenna and its power amplifier. In the presence of such matching circuits the normal phase adjustments may be carried out to provide a preferred safe SAR level that can be maintained during phase adjustment without sacrificing TRP.

    摘要翻译: 已经开发了一种方法和装置,通过在每个天线和其功率放大器之间设计适当的匹配电路来减少移动设备的SAR。 在存在这种匹配电路的情况下,可以进行正常相位调整以提供可以在相位调整期间保持而不牺牲TRP的优选安全SAR电平。

    Method and apparatus for adaptive reduction of interference in a small cell of a mobile telecommunication system
    23.
    发明授权
    Method and apparatus for adaptive reduction of interference in a small cell of a mobile telecommunication system 有权
    用于自适应地减少移动电信系统的小小区中的干扰的方法和装置

    公开(公告)号:US09357401B2

    公开(公告)日:2016-05-31

    申请号:US14236115

    申请日:2012-08-03

    摘要: In a cell phone telecommunication system having a macrocell and a small cell coextensive with or adjacent to the macrocell and sharing a common frequency band, interference can occur between a user device operating in the small cell, the local base station operating the user devices in the small cell on one hand and another user device serviced by a main base station for the macrocell. In order to reduce this interference, the shape of the transmission beam from at least one of the user devices or base stations is shaped into a narrow beam steered to be directed at the respective receiving unit. Alternatively, the shape of the transmission beam has a null point and the beam is steered so that its null point is directed toward the affected unit.

    摘要翻译: 在具有宏小区和与宏小区相邻或相邻的小区并且共享公共频带的小小区和小小区的蜂窝电话电信系统中,可以在操作小小区的用户设备,操作在小区中的用户设备的本地基站之间发生干扰 一方面是小单元,另一用户设备由用于宏单元的主基站服务。 为了减少这种干扰,来自用户装置或基站中的至少一个的发送波束的形状被成形为被转向以指向各个接收单元的窄波束。 或者,发射光束的形状具有零点,并且光束被转向,使得其零点指向受影响的单元。

    CONTROLLING MTD ANTENNA VSWR AND COUPLING FOR SAR CONTROL
    24.
    发明申请
    CONTROLLING MTD ANTENNA VSWR AND COUPLING FOR SAR CONTROL 有权
    控制MTD天线VSWR和耦合用于SAR控制

    公开(公告)号:US20140125546A1

    公开(公告)日:2014-05-08

    申请号:US14125174

    申请日:2012-06-21

    IPC分类号: H01Q1/50

    摘要: A method and apparatus has been developed to reduce SAR for a mobile device by designing appropriate matching circuits between each antenna and its power amplifier. In the presence of such matching circuits the normal phase adjustments may be carried out to provide a preferred safe SAR level that can be maintained during phase adjustment without sacrificing TRP.

    摘要翻译: 已经开发了一种方法和装置,通过在每个天线和其功率放大器之间设计适当的匹配电路来减少移动设备的SAR。 在存在这种匹配电路的情况下,可以进行正常相位调整以提供可以在相位调整期间保持而不牺牲TRP的优选安全SAR电平。

    Method, apparatus and system for providing transmit diversity feedback
    25.
    发明授权
    Method, apparatus and system for providing transmit diversity feedback 有权
    用于提供发射分集反馈的方法,装置和系统

    公开(公告)号:US07945222B2

    公开(公告)日:2011-05-17

    申请号:US12048832

    申请日:2008-03-14

    IPC分类号: H04B1/02 H04K3/00

    摘要: A receiver, or base station, may calculate the signal quality improvement based on a change in a diversity control parameter, for example, a phase difference or a power ratio among two or more antennas, by comparing a received signal power level to an expected power level, assuming no change in fading characteristics at the previous timeslot. This method may increase the amount of information communicated between the base station and the mobile unit, and may reduce feedback response time and/or provide for more efficient feedback for transmit diversity systems.

    摘要翻译: 接收器或基站可以通过将接收信号功率电平与预期功率进行比较,来基于分集控制参数的变化(例如,两个或更多个天线之间的相位差或功率比)来计算信号质量改善 水平,假设前一个时期的衰落特征没有变化。 该方法可以增加在基站和移动单元之间传送的信息量,并且可以减少反馈响应时间和/或为发射分集系统提供更有效的反馈。

    System and method for adaptive beamforming for specific absorption rate control
    26.
    发明授权
    System and method for adaptive beamforming for specific absorption rate control 有权
    用于特定吸收率控制的自适应波束成形的系统和方法

    公开(公告)号:US08442457B2

    公开(公告)日:2013-05-14

    申请号:US12876977

    申请日:2010-09-07

    IPC分类号: H04B7/02 H04B1/04 H01Q11/12

    摘要: A system may include a modifiable mobile device having at least two antennas coupled to fractional amplifiers, with returned power detectors. A beamformer unit provides adaptive beam shaping pattern, and a baseband processor provides beam pattern requirements, wherein the beamformer unit modifies the beam pattern requirements with return loss sampling information to shape the adaptive beam pattern so that a transmitted beam pattern minimizes transmitted power reflected back to the mobile device. A method may include regularly measuring a return power level, if output power is greater than a specific absorption rate level, comparing the return power level to a first threshold, else implementing mobile transmit diversity (MTD), and repeating. If the return power level is greater than the first threshold, implementing a MTD combined with reflection-based beamforming that modifies beam pattern requirements of the mobile device with return loss sampling information to create an adaptive beam pattern.

    摘要翻译: 系统可以包括具有耦合到分数放大器的至少两个天线的可修改移动设备,其具有返回的功率检测器。 波束形成器单元提供自适应波束整形模式,并且基带处理器提供波束图案要求,其中波束形成器单元利用回波损耗采样信息来修改波束图案要求,以形成自适应波束图案,使得发射波束图案将发射功率最小化,反射回到 移动设备。 方法可以包括如果输出功率大于特定吸收率水平,则将定时测量返回功率水平,将返回功率水平与第一阈值进行比较,否则实现移动发射分集(MTD)并重复。 如果返回功率水平大于第一阈值,则实施MTD结合基于反射的波束成形,其通过返回损耗采样信息修改移动设备的波束图案要求,以创建自适应波束图案。

    SYSTEM AND METHOD FOR ADAPTIVE BEAMFORMING FOR SPECIFIC ABSORPTION RATE CONTROL
    27.
    发明申请
    SYSTEM AND METHOD FOR ADAPTIVE BEAMFORMING FOR SPECIFIC ABSORPTION RATE CONTROL 有权
    用于特定吸收率控制的自适应光束的系统和方法

    公开(公告)号:US20110059706A1

    公开(公告)日:2011-03-10

    申请号:US12876977

    申请日:2010-09-07

    IPC分类号: H04B17/00

    摘要: A system may include a modifiable mobile device having at least two antennas coupled to fractional amplifiers, with returned power detectors. A beamformer unit provides adaptive beam shaping pattern, and a baseband processor provides beam pattern requirements, wherein the beamformer unit modifies the beam pattern requirements with return loss sampling information to shape the adaptive beam pattern so that a transmitted beam pattern minimizes transmitted power reflected back to the mobile device. A method may include regularly measuring a return power level, if output power is greater than a specific absorption rate level, comparing the return power level to a first threshold, else implementing mobile transmit diversity (MTD), and repeating. If the return power level is greater than the first threshold, implementing a MTD combined with reflection-based beamforming that modifies beam pattern requirements of the mobile device with return loss sampling information to create an adaptive beam pattern.

    摘要翻译: 系统可以包括具有耦合到分数放大器的至少两个天线的可修改移动设备,其具有返回的功率检测器。 波束形成器单元提供自适应波束整形模式,并且基带处理器提供波束图案要求,其中波束形成器单元利用回波损耗采样信息来修改波束图案要求,以形成自适应波束图案,使得发射波束图案将发射功率最小化,反射回到 移动设备。 方法可以包括如果输出功率大于特定吸收率水平,则将定时测量返回功率水平,将返回功率水平与第一阈值进行比较,否则实现移动发射分集(MTD)并重复。 如果返回功率水平大于第一阈值,则实施MTD结合基于反射的波束成形,其通过返回损耗采样信息修改移动设备的波束图案要求,以创建自适应波束图案。

    Method and system for use of quadrature hybrids for closed and open loop beam forming transmit diversity
    28.
    发明授权
    Method and system for use of quadrature hybrids for closed and open loop beam forming transmit diversity 有权
    使用正交混合的封闭和开环波束形成发射分集的方法和系统

    公开(公告)号:US09071309B2

    公开(公告)日:2015-06-30

    申请号:US14238772

    申请日:2012-08-23

    摘要: The present implementation is directed to a system and method of mobile transmit diversity and, more particularly, to a device which can operate in any of several modes, including a transmit diversity mode whereby two or more antennae transmit signals to at least one base station with relative phase difference, or in a non-diversity mode whereby one antenna is turned off and the other transmits at full or requisite power.

    摘要翻译: 本实施例涉及一种移动发射分集的系统和方法,更具体地说,涉及一种可以在几种模式中的任何一种模式下操作的装置,包括发射分集模式,其中两个或更多个天线将信号发射到至少一个基站, 或者以非分集模式,其中一个天线被关闭,另一个天线以完全或必需的功率发射。

    Method, apparatus and system for providing transmit diversity feedback during soft handoff
    29.
    发明授权
    Method, apparatus and system for providing transmit diversity feedback during soft handoff 有权
    用于在软切换期间提供发射分集反馈的方法,装置和系统

    公开(公告)号:US08249528B2

    公开(公告)日:2012-08-21

    申请号:US13152136

    申请日:2011-06-02

    IPC分类号: H03C7/02 H04B17/00

    摘要: Embodiments of the present invention describe methods for increasing the amount of information available to a mobile transmit diversity transmitter during soft handoff. According to embodiments of the invention, a transmit diversity transmitter may determine substantially when it is within the range of at least two receivers. In such situations, the transmitter may use the power control signals from more than one receiver, for example, from the two most dominant receivers in order to focus the beamforming accordingly.

    摘要翻译: 本发明的实施例描述了用于在软切换期间增加可用于移动发射分集发射机的信息量的方法。 根据本发明的实施例,发射分集发射机可以基本确定何时在至少两个接收机的范围内。 在这种情况下,发射机可以使用来自多于一个接收机的功率控制信号,例如来自两个最主要的接收机,以便相应地聚焦波束成形。

    System, apparatus and method for introducing antenna pattern variability
    30.
    发明授权
    System, apparatus and method for introducing antenna pattern variability 有权
    引入天线方向变化的系统,装置和方法

    公开(公告)号:US08032092B2

    公开(公告)日:2011-10-04

    申请号:US12330133

    申请日:2008-12-08

    IPC分类号: H04B7/02

    摘要: A device, system, and method for providing a transmit diversity device have a first antenna and a second antenna. The first antenna may have a first power transmission gain pattern, which may be non-uniform in a reference plane. The second antenna may have a second power transmission gain pattern, which may be non-uniform in a reference plane. The first and second antennae may be arranged with respect to each other such that a minimum power region of the first gain pattern overlaps a maximum power region of the second gain pattern in the reference plane. The transmit diversity device may also have a processor to receive a feedback parameter from a feedback device. The processor may produce a different transmit diversity parameter based on the feedback parameter for each of a first and second signals to be transmitted on the first and second antennae, respectively.

    摘要翻译: 用于提供发射分集设备的设备,系统和方法具有第一天线和第二天线。 第一天线可以具有在参考平面中可能不均匀的第一功率传输增益模式。 第二天线可以具有在参考平面中可能不均匀的第二功率传输增益模式。 第一和第二天线可以相对于彼此布置,使得第一增益图案的最小功率区域与参考平面中的第二增益图案的最大功率区域重叠。 发射分集设备还可以具有从反馈设备接收反馈参数的处理器。 处理器可以基于用于分别在第一和第二天线上发送的第一和第二信号中的每一个的反馈参数来产生不同的发射分集参数。