Power consumption optimization for cellular communication via power amplifier biasing

    公开(公告)号:US09949216B2

    公开(公告)日:2018-04-17

    申请号:US14492623

    申请日:2014-09-22

    Applicant: Apple Inc.

    CPC classification number: H04W52/52 H04L1/0003

    Abstract: This disclosure relates to optimizing power consumption for cellular communication based on transport block size in combination with channel condition measurements via power amplifier biasing. According to one embodiment, an indication of a transport block size to be used for uplink communication with a base station may be received. It may be determined that the transport block size provides more robust communication characteristics than required for current channel conditions. A power amplifier (PA) bias current for uplink communication with the cellular base station may be selected based at least in part on determining that the transport block size provides more robust communication characteristics than required for the current channel conditions. In particular, PA bias current selection may be biased to reduce power consumption at a cost of greater non-linearity based on the transport block size providing more robust communication characteristics than required for the current channel conditions.

    Conditional transmission deferral for dual wireless band coexistence
    25.
    发明授权
    Conditional transmission deferral for dual wireless band coexistence 有权
    双重无线频带共存的条件传输延迟

    公开(公告)号:US09572175B2

    公开(公告)日:2017-02-14

    申请号:US14212334

    申请日:2014-03-14

    Applicant: Apple Inc.

    CPC classification number: H04W76/15 H04W16/14 H04W72/1215 H04W88/06

    Abstract: A wireless communication system is presented for multiple wireless technology coexistence in a mobile device. A method according to this application might include obtaining one or more transmit allocation parameters for a wireless transmission via a first radio technology at a first wireless processor and the preparing to receive wireless data via a second radio technology at a second wireless processor. Next, the exemplary method might request that the wireless transmission be deferred, followed by deciding whether to grant the deferral request based at least on the one or more transmit allocation parameters.

    Abstract translation: 提出了一种无线通信系统,用于移动设备中的多个无线技术共存。 根据该应用的方法可以包括经由第一无线处理器的第一无线电技术获得用于无线传输的一个或多个发射分配参数,并且准备在第二无线处理器处经由第二无线电技术接收无线数据。 接下来,示例性方法可以请求延迟无线传输,然后至少基于一个或多个发送分配参数来决定是否授予延迟请求。

    Transmission power modulation to facilitate in-device coexistence between wireless communication technologies
    26.
    发明授权
    Transmission power modulation to facilitate in-device coexistence between wireless communication technologies 有权
    传输功率调制,以促进无线通信技术之间的设备间共存

    公开(公告)号:US09191904B2

    公开(公告)日:2015-11-17

    申请号:US14331059

    申请日:2014-07-14

    Applicant: Apple Inc.

    CPC classification number: H04W52/287 H04W52/243 H04W52/38 H04W88/06

    Abstract: A method of modulating transmission power to facilitate in-device coexistence between wireless communication technologies is provided. The method can include determining a scheduled time period during which data is received by a device via a first wireless communication technology. The method can further include reducing a transmission power of a transmission from the device via a second wireless communication technology to a threshold level prior to the scheduled time period and controlling the transmission power so that the transmission power does not exceed the threshold level during the scheduled time period. The method can additionally include, subsequent to the time period, increasing the transmission power to a level exceeding the threshold level.

    Abstract translation: 提供了一种调制发射功率以促进无线通信技术之间的设备间共存的方法。 该方法可以包括确定由设备经由第一无线通信技术接收数据的调度时间段。 该方法还可以包括在调度的时间段之前将来自设备的传输的传输功率经由第二无线通信技术降低到阈值水平,并且控制传输功率,使得传输功率在调度期间不超过阈值电平 时间段。 该方法还可以包括在该时间段之后,将发送功率提高到超过阈值水平的水平。

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