Background crystal oscillator calibration

    公开(公告)号:US10772053B2

    公开(公告)日:2020-09-08

    申请号:US16402203

    申请日:2019-05-02

    摘要: System and method for temperature-calibration of a crystal oscillator (XO) in a mobile device. A temperature-calibration status of the XO is determined and a trigger condition related to temperature-calibration of the XO is detected. If the temperature-calibration status of the XO is not fully temperature-calibrated or if the XO has not been previously temperature-calibrated, a temperature-calibration session is initiated by an XO manager based on the condition, wherein a receiver is configured to receive signals and temperature-calibration of the XO is performed in a background mode based on the received signals. The condition based triggering ensures that the XO is temperature-calibrated prior to launch of any position based or global navigation satellite systems (GNSS) based applications on the mobile device. The trigger condition can include first use or power-on, charging, presence in an outdoor environment, variation in operating temperature, pre-specified time, and/or user input pertaining to the mobile device.

    Single antenna sharing for multiple wireless connections
    2.
    发明授权
    Single antenna sharing for multiple wireless connections 有权
    用于多个无线连接的单天线共享

    公开(公告)号:US09363849B2

    公开(公告)日:2016-06-07

    申请号:US14215128

    申请日:2014-03-17

    摘要: A wireless device includes: a first radio and first transceiver configured to transmit and receive according to a first radio access technology; a second radio and second transceiver configured to transmit and receive according to a second radio access technology; a first antenna and a second antenna connected to the first radio and the second radio; a switch; and a control unit configured to control the switch to configure connections of the first and second antennas to the first and second radios. The control unit is configured to control the switch to disconnect the second radio from the second antenna in response to a receiving, by the second radio through the second antenna, a signal that is below a predetermined threshold, and to connect the second radio to the first antenna during a wakeup period of the second radio.

    摘要翻译: 无线设备包括:第一无线电和第一收发机,被配置为根据第一无线接入技术进行发送和接收; 第二无线电和第二收发机,被配置为根据第二无线电接入技术进行发射和接收; 连接到第一无线电和第二无线电的第一天线和第二天线; 开关 以及控制单元,被配置为控制所述开关以配置所述第一和第二天线到所述第一和第二无线电的连接。 控制单元被配置为响应于通过第二天线的第二无线电接收低于预定阈值的信号并且将第二无线电与第二无线电连接到第二无线电 在第二无线电的唤醒期间的第一天线。

    Antenna switching devices, methods, and systems
    3.
    发明授权
    Antenna switching devices, methods, and systems 有权
    天线切换装置,方法和系统

    公开(公告)号:US09118108B2

    公开(公告)日:2015-08-25

    申请号:US13839187

    申请日:2013-03-15

    摘要: This disclosure provides systems, methods, and apparatus for antenna switching for simultaneous communication. In one embodiment, a wireless communication apparatus is provided. The wireless communication apparatus includes a plurality of antennas including a first antenna and a second antenna. The wireless communication apparatus further includes a plurality of receive circuits including a first receive circuit. The wireless communication apparatus further includes a controller configured to determine one or more performance characteristics of the first antenna over a plurality of sources. The controller is further configured to selectively switch the first receive circuit from receiving wireless communications via the first antenna to receive wireless communications via the second antenna if the one or more performance characteristics of the first antenna over the plurality of sources fall simultaneously. Other aspects, embodiments, and features are also claimed and described.

    摘要翻译: 本公开提供用于同时通信的天线切换的系统,方法和装置。 在一个实施例中,提供了一种无线通信装置。 无线通信装置包括包括第一天线和第二天线的多个天线。 无线通信装置还包括包括第一接收电路的多个接收电路。 无线通信装置还包括被配置为确定多个源上的第一天线的一个或多个性能特性的控制器。 控制器还被配置为如果多个源上的第一天线的一个或多个性能特性同时掉落,则第一接收电路经由第一天线选择性地切换接收无线通信,以经由第二天线接收无线通信。 还要求和描述其它方面,实施例和特征。

    Antenna switching devices, methods, and systems for simultaneous communication
    4.
    发明授权
    Antenna switching devices, methods, and systems for simultaneous communication 有权
    用于同时通信的天线切换装置,方法和系统

    公开(公告)号:US09070974B2

    公开(公告)日:2015-06-30

    申请号:US13838248

    申请日:2013-03-15

    摘要: This disclosure provides systems, methods, and apparatus for antenna switching for simultaneous communication. One apparatus embodiment includes a plurality of antennas including a first antenna, a second antenna, and a third antenna. The wireless communication apparatus further includes a plurality of receive circuits including a first receive circuit, at least two of the plurality of receive circuits each configured to simultaneously receive, with respect to the other, wireless communications from a different one of at least two networks relating to different radio access technologies. The wireless communication apparatus further includes a controller configured to selectively switch the first receive circuit from receiving wireless communications via the first antenna to receive wireless communications via the second antenna based on one or more performance characteristics of at least one of the first antenna and the second antenna. Other aspects, embodiments, and features are also claimed and described.

    摘要翻译: 本公开提供用于同时通信的天线切换的系统,方法和装置。 一个装置实施例包括包括第一天线,第二天线和第三天线的多个天线。 所述无线通信装置还包括多个接收电路,包括第一接收电路,所述多个接收电路中的至少两个接收电路中的至少两个接收电路被配置为从相关的至少两个网络中的不同的一个网络中相对于另一个同时接收无线通信 到不同的无线接入技术。 无线通信装置还包括控制器,其被配置为基于第一天线和第二天线中的至少一个的一个或多个性能特性,经由第一天线选择性地切换第一接收电路接收无线通信,以经由第二天线接收无线通信 天线。 还要求和描述其它方面,实施例和特征。

    SYSTEMS, APPARATUS, AND METHODS FOR ARBITRATION OF ANTENNA SWITCH CONFIGURATION AMONG DIFFERENT CLIENTS
    5.
    发明申请
    SYSTEMS, APPARATUS, AND METHODS FOR ARBITRATION OF ANTENNA SWITCH CONFIGURATION AMONG DIFFERENT CLIENTS 有权
    用于不同客户端的天线开关配置仲裁的系统,设备和方法

    公开(公告)号:US20130310045A1

    公开(公告)日:2013-11-21

    申请号:US13841425

    申请日:2013-03-15

    IPC分类号: H04W36/14

    摘要: This disclosure provides systems, methods, and apparatus for antenna selection for different radio access technologies. An apparatus can include a plurality of antennas and a plurality of radio access technology modules each configured to communicate according to a different radio access technology. The apparatus further includes a controller configured to switch communication circuits of each of the radio access technology modules to communicate via a corresponding one or more of the plurality of antennas. The apparatus further includes a switching manager configured to manage a plurality of switch configurations each defining a mapping between each of the radio access technology modules and the antennas. The switching manager is further configured to store a switch configuration used for a first radio access technology module and cause the controller to maintain the switch configuration in place in response to a network handover. Other aspects, embodiments, and features are also claimed and described.

    摘要翻译: 本公开提供了用于不同无线电接入技术的天线选择的系统,方法和装置。 一种装置可以包括多个天线和多个无线电接入技术模块,每个无线电接入技术模块被配置为根据不同的无线电接入技术进行通信。 该装置还包括控制器,其被配置为切换每个无线电接入技术模块的通信电路,以经由多个天线中相应的一个或多个天线进行通信。 所述设备还包括交换管理器,被配置为管理多个交换机配置,每个开关配置定义每个无线电接入技术模块与天线之间的映射。 交换管理器还被配置为存储用于第一无线电接入技术模块的交换机配置,并且使控制器响应于网络切换来维持交换机配置。 还要求和描述其它方面,实施例和特征。

    ANTENNA SWITCH CONFIGURATION DEVICES, METHODS, & SYSTEMS
    6.
    发明申请
    ANTENNA SWITCH CONFIGURATION DEVICES, METHODS, & SYSTEMS 有权
    天线开关配置设备,方法和系统

    公开(公告)号:US20130309982A1

    公开(公告)日:2013-11-21

    申请号:US13841835

    申请日:2013-03-15

    IPC分类号: H04B1/44

    摘要: A wireless communication apparatus is provided that includes a plurality of antennas and at least one receive or transmit circuit. The apparatus further includes a controller configured to: determine one or more performance characteristics associated with a first antenna while the circuit is connected to the first antenna; switch the circuit from the first antenna to a second antenna; determine one or more performance characteristics associated with the second antenna after the switch; compare the performance characteristics associated with the antennas; determine whether to maintain the switch to the second antenna or to switch the circuit back to the first antenna; and determine a duration of time to maintain a connection between the selected antenna and the circuit based, at least, on one or more performance characteristics. Other aspects, embodiments, and features are also claimed and described.

    摘要翻译: 提供一种包括多个天线和至少一个接收或发送电路的无线通信装置。 该装置还包括控制器,其被配置为:在电路连接到第一天线的同时确定与第一天线相关联的一个或多个性能特征; 将电路从第一天线切换到第二天线; 在切换之后确定与第二天线相关联的一个或多个性能特征; 比较与天线相关的性能特征; 确定是否保持切换到第二天线或将电路切换回第一天线; 并且至少基于一个或多个性能特征来确定维持所选择的天线和所述电路之间的连接的持续时间。 还要求和描述其它方面,实施例和特征。

    Single Antenna Sharing For Multiple Wireless Connections
    7.
    发明申请
    Single Antenna Sharing For Multiple Wireless Connections 有权
    单个天线共享多个无线连接

    公开(公告)号:US20160254851A1

    公开(公告)日:2016-09-01

    申请号:US15152799

    申请日:2016-05-12

    IPC分类号: H04B7/08 H04B7/06 H04W88/06

    摘要: A wireless device includes: a first radio and first transceiver configured to transmit and receive according to a first radio access technology; a second radio and second transceiver configured to transmit and receive according to a second radio access technology; a first antenna and a second antenna connected to the first radio and the second radio; a switch; and a control unit configured to control the switch to configure connections of the first and second antennas to the first and second radios. The control unit is configured to control the switch to disconnect the second radio from the second antenna in response to a receiving, by the second radio through the second antenna, a signal that is below a predetermined threshold, and to connect the second radio to the first antenna during a wakeup period of the second radio.

    摘要翻译: 无线设备包括:第一无线电和第一收发机,被配置为根据第一无线接入技术进行发送和接收; 第二无线电和第二收发机,被配置为根据第二无线电接入技术进行发射和接收; 连接到第一无线电和第二无线电的第一天线和第二天线; 开关 以及控制单元,被配置为控制所述开关以配置所述第一和第二天线到所述第一和第二无线电的连接。 控制单元被配置为响应于通过第二天线的第二无线电接收低于预定阈值的信号并且将第二无线电与第二无线电连接到第二无线电 在第二无线电的唤醒期间的第一天线。

    Systems, apparatus, and methods for antenna selection
    8.
    发明授权
    Systems, apparatus, and methods for antenna selection 有权
    用于天线选择的系统,装置和方法

    公开(公告)号:US09344174B2

    公开(公告)日:2016-05-17

    申请号:US13711410

    申请日:2012-12-11

    摘要: This disclosure provides systems, methods, and apparatus for mobile transmit diversity. In one aspect, a wireless communication apparatus is provided. The wireless communication apparatus includes a plurality of antennas. The wireless communication apparatus further includes a plurality of transmit circuits, each transmit circuit of the plurality of transmit circuits being configured to transmit according to a different radio access technology. The wireless communication apparatus further includes a controller configured to selectively switch each of the transmit circuits of the plurality of transmit circuits to transmit wireless communications via a corresponding one of the plurality of antennas based on priority levels of data for each of the transmit circuits and a detected operating mode of the wireless communication apparatus.

    摘要翻译: 本公开提供了用于移动发射分集的系统,方法和装置。 一方面,提供一种无线通信装置。 无线通信装置包括多个天线。 所述无线通信装置还包括多个发送电路,所述多个发送电路的各发送电路被配置为根据不同的无线接入技术进行发送。 所述无线通信装置还包括控制器,所述控制器被配置为基于所述多个发射电路中的每个发射电路,基于所述发射电路中的每一个的优先级数据,经由所述多个天线中的相应一个发射无线通信,以及 检测无线通信装置的操作模式。

    Method and apparatus for predicting signal characteristics for a nonlinear power amplifier
    9.
    发明授权
    Method and apparatus for predicting signal characteristics for a nonlinear power amplifier 有权
    用于预测非线性功率放大器的信号特性的方法和装置

    公开(公告)号:US09112649B2

    公开(公告)日:2015-08-18

    申请号:US13649994

    申请日:2012-10-11

    摘要: Aspects disclosed herein relate to predicting one or more signal characteristics to improve efficiency for a PA. A wireless communications device may be include a power amplifier and a processor that is associated with a signal prediction module. In an aspect, the processor may be a modem, a RF chip, etc. In one example, the wireless communications device may be configured to buffer one or more values associated with an input signal. The signal prediction module may be configured to predict a system response to at least a portion of the one or more buffered values, and generate a switcher control signal based on the system response. The signal prediction module may also generate a predicted supply voltage from the values associated with the input signal.

    摘要翻译: 本文公开的方面涉及预测一个或多个信号特征以提高PA的效率。 无线通信设备可以包括功率放大器和与信号预测模块相关联的处理器。 在一方面,处理器可以是调制解调器,RF芯片等。在一个示例中,无线通信设备可以被配置为缓冲与输入信号相关联的一个或多个值。 信号预测模块可以被配置为预测对所述一个或多个缓冲值的至少一部分的系统响应,并且基于系统响应来生成切换器控制信号。 信号预测模块还可以根据与输入信号相关联的值产生预测的电源电压。

    ANTENNA SWITCHING FOR DUAL RADIO DEVICES
    10.
    发明申请
    ANTENNA SWITCHING FOR DUAL RADIO DEVICES 有权
    天线开关双频无线设备

    公开(公告)号:US20150065073A1

    公开(公告)日:2015-03-05

    申请号:US14015298

    申请日:2013-08-30

    IPC分类号: H04B7/08

    摘要: Systems and methods for antenna selection in a wireless terminal with two radios are provided. Signals received using first and second antennas are demodulated by first and second modems according to first and second protocols. A receive path between the second antenna and the second modem can be controlled to receive signals according to the first protocol. A performance measure of demodulating, according to the first protocol, a signal received using the second antenna is determined. The performance measure may be determined using a mirror module in the second modem or using a search module in the first modem. The wireless terminal switches antennas so that the first modem demodulates a signal received using the second antenna, if the performance measure for using the second antenna is such that the switch would improve performance of the first modem.

    摘要翻译: 提供了具有两个无线电的无线终端中天线选择的系统和方法。 使用第一和第二天线接收的信号由第一和第二调制解调器根据第一和第二协议进行解调。 可以控制第二天线和第二调制解调器之间的接收路径以根据第一协议接收信号。 确定根据第一协议解调使用第二天线接收的信号的性能度量。 可以使用第二调制解调器中的镜模块或使用第一调制解调器中的搜索模块来确定性能测量。 无线终端切换天线,使得第一调制解调器解调使用第二天线接收的信号,如果使用第二天线的性能测量使得交换机将改善第一调制解调器的性能。