Dual mode amplifier network having an isolator in a digital path and a
filter in an analog path
    1.
    发明授权
    Dual mode amplifier network having an isolator in a digital path and a filter in an analog path 失效
    双模放大器网络具有数字路径中的隔离器和模拟路径中的滤波器

    公开(公告)号:US5673287A

    公开(公告)日:1997-09-30

    申请号:US767151

    申请日:1996-12-16

    CPC分类号: H04L27/0008

    摘要: The dual mode amplifier network of the present invention enables a radiotelephone to operate efficiently in both the U.S. Digital Cellular mode and the FM analog cellular mode. Multiple, switched branches (110 and 120) permit one branch (110) with an isolator (103) to be used in the in the U.S. Digital Cellular mode while the other branch (120) is switched out. In the analog mode, the transmit filter branch (120) is used while the isolator branch (110) is switched out.

    摘要翻译: 本发明的双模放大器网络使得无线电话机能够在美国数字蜂窝模式和FM模拟蜂窝模式中有效地工作。 多个交换分支(110和120)允许在美国数字蜂窝模式中使用具有隔离器(103)的一个分支(110),而另一个分支(120)被切换。 在模拟模式中,当隔离器分支(110)被切换时,使用发射滤波器分支(120)。

    Apparatus and method of using CDMA architecture for 3GPP2 compliant transceivers
    4.
    发明授权
    Apparatus and method of using CDMA architecture for 3GPP2 compliant transceivers 有权
    使用CDMA架构的3GPP2兼容收发器的装置和方法

    公开(公告)号:US08848671B2

    公开(公告)日:2014-09-30

    申请号:US13205661

    申请日:2011-08-09

    IPC分类号: H04B7/216 H04B1/40 H04B1/707

    CPC分类号: H04B1/406 H04B1/707

    摘要: A mobile device that operates in a wireless communication network is disclosed. The mobile device includes a transceiver that uses a first wireless communication technology, which can be Long Term Evolution (LTE) technology. The mobile device also includes a modem that coupled to the transceiver through a standard interface and uses a second wireless communication technology, which can be CDMA. The modem processes the received signal from the transceiver and processes a transmit signal for the transceiver. A first receiver first processing circuit has a matching filter to compensate for and resampling the received signal from the receiver so that that the received signal from the transceiver is compatible with the modem. A transmitter processing has a filter for resampling and adjusting a processed transmit signal for the transmitter.

    摘要翻译: 公开了一种在无线通信网络中操作的移动设备。 移动设备包括使用可以是长期演进(LTE)技术的第一无线通信技术的收发器。 移动设备还包括通过标准接口耦合到收发器的调制解调器,并且使用可以是CDMA的第二无线通信技术。 调制解调器处理来自收发器的接收信号,并处理收发信机的发送信号。 第一接收机第一处理电路具有匹配滤波器,用于对接收机的接收信号进行补偿和重采样,使得来自收发器的接收信号与调制解调器兼容。 发射机处理具有用于重新采样和调整发射机的已处理发射信号的滤波器。

    High efficiency dual mode power amplifier apparatus
    7.
    发明授权
    High efficiency dual mode power amplifier apparatus 失效
    高效双模功率放大器

    公开(公告)号:US5251331A

    公开(公告)日:1993-10-05

    申请号:US850615

    申请日:1992-03-13

    CPC分类号: H03G3/3047 H03G3/004

    摘要: The dual mode power amplifier apparatus of the present invention is comprised of a number of power amplifiers (101-103) coupled to a voltage convertor (104) through their collector supply lines. A mode select line (105) is connected to the voltage convertor (104) to select a digital or analog mode. The preferred embodiment of the present invention is used in a hybrid digital/analog radiotelephone. In the digital mode, the voltage convertor (104) is turned off and the voltage convertor (104) supply voltage is allowed through to the collectors of the power amplifiers (101-103). This permits the power amplifiers (101-103) to operate with optimum linearity in a digital transmission environment. In an analog environment, the voltage convertor (104) is on and supplying a reduced voltage to the power amplifiers (101-103) allowing more efficient operation in this mode.

    摘要翻译: 本发明的双模式功率放大器装置包括通过其集电极供电线耦合到电压转换器(104)的多个功率放大器(101-103)。 模式选择线(105)连接到电压转换器(104)以选择数字或模拟模式。 本发明的优选实施例用于混合数字/模拟无线电话机中。 在数字模式中,电压转换器(104)关闭,电压转换器(104)的供电电压被允许通过功率放大器(101-103)的集电极。 这允许功率放大器(101-103)在数字传输环境中以最佳线性运行。 在模拟环境中,电压转换器(104)接通并向功率放大器(101-103)提供降低的电压,从而允许在该模式下更有效的操作。

    System and methods for adaptive antenna optimization
    8.
    发明授权
    System and methods for adaptive antenna optimization 有权
    自适应天线优化的系统和方法

    公开(公告)号:US09564676B2

    公开(公告)日:2017-02-07

    申请号:US13487520

    申请日:2012-06-04

    CPC分类号: H01Q1/241 H01Q5/335

    摘要: A method (600) and devices for enhancing the performance of one or more antennas (440) is provided. A control circuit (104) assesses performance of an antenna (101) in a plurality of bands, such as a receive band and a transmit band. The control circuit (104) can then adjust an adjustable impedance matching circuit (103) coupled to the antenna (101) to improve the efficiency of the antenna (101) in the selected band and can adjust a resonance of the antenna (101) to further improve an efficiency of the antenna (101) in the selected band. Operating parameters for the antenna (101) can be selected from one or more multi-dimensional lookup tables (120) where the parameters are indexed both to a first operating band (702) and a second operating band (703).

    摘要翻译: 提供了一种方法(600)和用于增强一个或多个天线(440)的性能的设备。 控制电路(104)评估诸如接收频带和发射频带的多个频带中的天线(101)的性能。 控制电路(104)然后可以调节耦合到天线(101)的可调阻抗匹配电路(103),以提高所选频带中的天线(101)的效率,并且可以将天线(101)的谐振调整为 进一步提高所选频带中天线(101)的效率。 可以从一个或多个多维查找表(120)中选择天线(101)的操作参数,其中参数被索引到第一操作频带(702)和第二操作频带(703)。

    Method and apparatus for resource block based transmitter optimization in wireless communication devices
    9.
    发明授权
    Method and apparatus for resource block based transmitter optimization in wireless communication devices 有权
    无线通信设备中基于资源块的发射机优化的方法和装置

    公开(公告)号:US08880012B2

    公开(公告)日:2014-11-04

    申请号:US13353390

    申请日:2012-01-19

    IPC分类号: H01Q11/12 H04B1/04

    摘要: A method (700) and apparatus (600) optimize resource block based transmitter operation in a wireless communication device. The method can include receiving (720) a radio resource assignment including a particular resource block allocation. The method can include configuring (730) a wireless communication transceiver for the particular resource block allocation. The method can include degrading (740) power amplifier distortion of the wireless communication transceiver based on the particular resource block allocation. The power amplifier distortion can be a measure of a deviation of the power amplifier output in an analysis domain from an ideal linear amplifier.

    摘要翻译: 一种方法(700)和装置(600)在无线通信设备中优化基于资源块的发射机操作。 该方法可以包括接收(720)包括特定资源块分配的无线资源分配。 该方法可以包括配置(730)用于特定资源块分配的无线通信收发器。 该方法可以包括基于特定资源块分配来降低(740)无线通信收发器的功率放大器失真。 功率放大器失真可以是分析域中的功率放大器输出与理想线性放大器的偏差的度量。

    METHOD AND APPARATUS FOR REDUCING TRANSMITTER INTERFERENCE
    10.
    发明申请
    METHOD AND APPARATUS FOR REDUCING TRANSMITTER INTERFERENCE 有权
    减少发射机干扰的方法和装置

    公开(公告)号:US20130003890A1

    公开(公告)日:2013-01-03

    申请号:US13172918

    申请日:2011-06-30

    IPC分类号: H04B1/02

    摘要: A method and apparatus mitigates spurious transmissions. An offset local oscillator signal is generated that is at a frequency that is offset from a nominal transmit channel carrier frequency by a spurious mitigation offset. An information signal is generated that comprises a series of modulation symbols and has a transmission bandwidth at baseband. A configured offset information signal is generated from the information signal, wherein the spectrum of the configured offset information signal is offset from DC by a channel configuration offset, and is further offset by a negative of the spurious mitigation offset. The offset local oscillator signal and the configured offset information signal are combined using a mixing technique. The spurious mitigation offset is zero when a spurious condition does not exist and is non-zero when the spurious condition does exist.

    摘要翻译: 一种减轻杂散传输的方法和装置。 产生偏移本地振荡器信号,该偏移本地振荡器信号处于与标称发射信道载波频率偏移伪噪声偏移的频率处。 产生包括一系列调制符号并且在基带处具有传输带宽的信息信号。 从信息信号生成配置的偏移信息信号,其中配置的偏移信息信号的频谱通过信道配置偏移从DC偏移,并进一步被寄生减影偏移的负值偏移。 偏移本地振荡器信号和配置的偏移信息信号使用混合技术进行组合。 当杂散条件不存在时,杂散减轻偏移为零,当杂散条件确实存在时,杂散缓解偏移为零。