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    Radio frequency system power back off systems and methods
    23.
    发明授权
    Radio frequency system power back off systems and methods 有权
    射频系统的电源退出系统和方法

    公开(公告)号：US09560601B2

    公开(公告)日：2017-01-31

    申请号：US14641145

    申请日：2015-03-06

    Applicant: APPLE INC.

    Inventor： Jianjian Li ,  Vikas O. Jain ,  Peter M. Agboh ,  Kaushal K. Mangtani ,  Manjit S. Walia ,  Mohit Narang ,  Abhishek Mehta ,  Ruben Caballero

    IPC: H04W52/22

    CPC classification number: H04W52/226 ,  H04W52/367 ,  H04W52/52

    Abstract: Systems and method for improving design and/or operation of a radio frequency system are provided. One embodiment provides a radio frequency system, which includes a first look-up table that describes a static reference value, association between a maximum output power and a first specification level, and association between a first back off value and a second specification level, in which the first back off value is defined in relation to the static reference value and used to determine a first reduced output power; and a second look-up table that describes association between the maximum output power and a first set of operational parameters and association between the first reduced output power and a second set of operational parameters. The radio frequency system wirelessly transmits the analog electrical signal in compliance with an instructed specification level instruction by determining a desired output power based on the instructed specification level using the first look-up table and implementing operational parameters determined based on the desired output power using the second look-up table.

    Abstract translation: 提供了改善射频系统的设计和/或操作的系统和方法。 一个实施例提供一种射频系统，其包括描述静态参考值的第一查找表，最大输出功率和第一规范级之间的关联以及第一退避值和第二规范级之间的关联， 其中第一退避值相对于静态参考值定义并用于确定第一减小输出功率; 以及第二查找表，其描述了最大输出功率与第一组操作参数之间的关联以及第一降低输出功率与第二组操作参数之间的关联。 无线电频率系统通过使用第一查找表根据所指示的规格级别确定期望的输出功率并根据所指示的规范级别指令无线地发送模拟电信号，并且使用第一查询表确定基于期望输出功率确定的操作参数 第二查表。

    Device and method for antenna synchronization and selection
    24.
    发明授权
    Device and method for antenna synchronization and selection 有权
    天线同步和选择的装置和方法

    公开(公告)号：US09544934B2

    公开(公告)日：2017-01-10

    申请号：US14732105

    申请日：2015-06-05

    Applicant: APPLE INC.

    Inventor： Hsin-You Liu ,  Ruben Caballero ,  Mohit Narang ,  Peter M. Agboh ,  Paul V. Flynn ,  Qiong Wu ,  Nicholas M. McDonnell ,  Navid Damji ,  Ming Hu ,  Wen Zhao

    IPC: H04B7/00 ,  H04W76/02 ,  H04W4/00

    CPC classification number: H04W76/14 ,  H04W4/80

    Abstract: A device and method selects an antenna configuration. The method performed at a user equipment includes determining at least one communication functionality that is being used, each communication functionality configured to utilize at least one antenna in a multi-antenna arrangement of the user equipment. The method includes receiving a first indication of whether a cellular communication functionality is being used, the cellular communication functionality configured to utilize at least one antenna in the multi-antenna arrangement. The method includes receiving a second indication of whether a coexistence condition is present. The method includes determining an antenna configuration for the multi-antenna arrangement to be used by the determined communication functionality based upon the determined communication functionality, the first indication, and the second indication. The method includes configuring the multi-antenna arrangement for the determined communication functionality based upon the antenna configuration.

    Abstract translation: 设备和方法选择天线配置。 在用户设备处执行的方法包括确定正在使用的至少一个通信功能，每个通信功能被配置为在用户设备的多天线布置中利用至少一个天线。 该方法包括接收蜂窝通信功能是否正在被使用的第一指示，所述蜂窝通信功能被配置为在多天线布置中利用至少一个天线。 该方法包括接收是否存在共存条件的第二指示。 该方法包括基于所确定的通信功能，第一指示和第二指示，确定由所确定的通信功能使用的多天线布置的天线配置。 该方法包括基于天线配置为确定的通信功能配置多天线布置。

    Dynamic Antenna Switching
    26.
    发明申请
    Dynamic Antenna Switching 有权
    动态天线切换

    公开(公告)号：US20150349870A1

    公开(公告)日：2015-12-03

    申请号：US14291769

    申请日：2014-05-30

    Applicant: Apple Inc.

    Inventor： Xiaojun Chen ,  Peter M. Agboh ,  Indranil S. Sen ,  Hsin-Yuo Liu ,  Vusthia Sunil Reddy ,  Diego C. Hernandez ,  Digvijay A. Jadhav ,  Mohit Narang ,  Ruben Caballero

    IPC: H04B7/08

    CPC classification number: H04B7/0817 ,  H04B7/0822

    Abstract: Dynamic antenna switching based on weighted signal to noise ratio (SNR). A wireless device may include multiple antennas. SNR at each active antenna may be calculated. An antenna-specific weight may be applied to each antenna's SNR. The antenna-specific weights may further be radio specific and/or transmit or receive specific in some cases. Antenna selection (possibly just for a specific radio and/or for transmit or receive operations, depending on the specificity of the antenna weights), including potentially switching which antenna is used, may be based on the resulting weighted SNR values for each antenna. If the antenna-specific weights are radio specific and/or transmit or receive operation specific, the method may be performed multiple times with different antenna-specific weights to select antenna(s) for different radios and/or for other operations.

    Abstract translation: 基于加权信噪比（SNR）的动态天线切换。 无线设备可以包括多个天线。 可以计算每个有源天线的SNR。 天线特定权重可以应用于每个天线的SNR。 在某些情况下，天线特定权重可以进一步是无线电特定的和/或发送或接收特定的。 天线选择（可能仅适用于特定无线电和/或用于发射或接收操作，取决于天线权重的特异性），包括潜在地切换使用哪个天线，可以基于所得到的每个天线的加权SNR值。 如果天线特定权重是无线电特定的和/或发送或接收操作特定的，则可以使用不同的天线特定权重多次执行该方法，以选择用于不同无线电和/或其他操作的天线。

    PEER-TO-PEER COMMUNICATIONS ON RESTRICTED CHANNELS
    27.
    发明申请
    PEER-TO-PEER COMMUNICATIONS ON RESTRICTED CHANNELS 有权
    与对等通信限制通道

    公开(公告)号：US20150163828A1

    公开(公告)日：2015-06-11

    申请号：US14099762

    申请日：2013-12-06

    Applicant: Apple Inc.

    Inventor： Pierre B. Vandwalle ,  Christiaan A. Hartman ,  Peter M. Agboh

    IPC: H04W74/08 ,  H04W76/02 ,  H04W52/38

    CPC classification number: H04W74/0833 ,  H04W28/04 ,  H04W52/0216 ,  H04W52/0229 ,  H04W52/383 ,  H04W74/0808 ,  H04W74/0816 ,  H04W74/085 ,  H04W76/14 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

    Abstract: A method and apparatus are provided for conducting peer-to-peer communications while channel hopping among two or more wireless channels, at least one of which is a restricted channel. One type of restricted channel requires the use of DFS (Dynamic Frequency Selection) or a similar scheme for avoiding use of the channel during certain circumstances (e.g., for radar avoidance). Communicating peers may synchronize a channel-hopping sequence with TBTTs (Target Beacon Transmission Times) of the restricted channel(s), so that they switch to such a channel in time to capture a beacon and determine whether the channel is free. If the channel is free, or if no beacon is received, they may immediately begin or resume their communications. They may also quiesce just before another TBTT so as to capture that beacon. Thus, the peer-to-peer communications do not diminish a peer device's ability to receive and comply with channel switch announcements.

    Abstract translation: 提供了一种方法和装置，用于在两个或更多个无线信道中的信道跳跃期间进行对等通信，其中至少一个是受限信道。 一种类型的受限通道需要使用DFS（动态频率选择）或类似的方案来避免在某些情况下使用信道（例如用于雷达避免）。 通信对等体可以将信道跳跃序列与受限信道的TBTT（目标信标传输时间）同步，以便及时切换到这样的信道以捕获信标并确定信道是否空闲。 如果频道是空闲的，或者如果没有收到信标，他们可以立即开始或恢复通信。 他们也可能在另一个TBTT之前停顿，以便捕获该信标。 因此，对等通信不会削弱对等设备接收和遵守信道切换通告的能力。

    Dynamic adjustment of transmission parameters
    28.
    发明授权
    Dynamic adjustment of transmission parameters 有权

    公开(公告)号：US11601897B2

    公开(公告)日：2023-03-07

    申请号：US16887832

    申请日：2020-05-29

    Applicant: Apple Inc.

    Inventor： Xi Yang ,  Jianxuan Tu ,  Qiyang Wu ,  Peter M. Agboh ,  Vusthla Sunil Reddy ,  Mark D. Neumann

    IPC: H04W52/36 ,  H04W52/28 ,  H04W72/04 ,  H04W72/10 ,  H04W72/044

    Abstract: Manners of complying with SAR limits at a user equipment (UE) configured to establish a first communication connection using a first radio and a second communication connection using a second radio. The UE determines that a first application associated with the first communication connection is to be prioritized over a second application associated with the second communication connection, determines a specific absorption rate (SAR) value associated with the UE and modifies, responsive to the SAR value associated with the UE, a parameter associated with the first radio or the second radio based on at least the priority of the first application relative to the second application.

    Terahertz spectroscopy and imaging in dynamic environments
    29.
    发明授权
    Terahertz spectroscopy and imaging in dynamic environments 有权

    公开(公告)号：US11513004B2

    公开(公告)日：2022-11-29

    申请号：US16536233

    申请日：2019-08-08

    Applicant: Apple Inc.

    Inventor： Chia-Chi Chen ,  Vusthla Sunil Reddy ,  Sireesha Ramisetti ,  Peter M. Agboh ,  Mohit Narang ,  Vijendrakumar K. Ashiwal

    IPC: G01J3/42 ,  G01N21/3581

    Abstract: Embodiments are disclosed for terahertz spectroscopy and imaging in dynamic environments. In an embodiment, a transmitter of an electronic device emits a continuous electromagnetic (EM) wave in the terahertz (THz) frequency band into a dynamic environment that includes a transmission medium that changes over time. A receiver of the electronic device, receives an EM wave reflected off an object in the environment and determines a spectral response of the reflected EM wave. The spectral response includes absorption spectra at a frequency in the THz frequency band that is indicative of a known target transmission medium. The absorption spectra of the target transmission medium and a path length of the reflected EM wave signal are used to obtain the concentration level of the target transmission medium from a reference library of known concentration levels.

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