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.

    Dynamic antenna tuner setting for carrier aggregation scenarios
    114.
    发明授权
    Dynamic antenna tuner setting for carrier aggregation scenarios 有权
    动态天线调谐器设置,用于载波聚合场景

    公开(公告)号:US09554359B2

    公开(公告)日:2017-01-24

    申请号:US14175502

    申请日:2014-02-07

    Applicant: Apple Inc.

    Abstract: Apparatus and methods for dynamically adjusting radio frequency circuitry in a wireless communication device are disclosed. The wireless communication device can receive downlink communication using carrier aggregation through a primary component carrier and a secondary component carrier. When carrier aggregation is not enabled, the wireless communication device adjusts the radio frequency circuitry based on default values. When carrier aggregation is enabled, the wireless communication device evaluates radio frequency conditions for the primary and secondary component carriers and adjusts the radio frequency circuitry based on whether uplink and/or downlink communication is power constrained. When uplink communication is power constrained, the wireless communication device adjusts the radio frequency circuitry for optimal performance via the primary component carrier, and when uplink communication is not power constrained, the wireless communication device adjusts the radio frequency circuitry for optimal performance via the combination of the primary and secondary component carriers used for carrier aggregation.

    Abstract translation: 公开了一种在无线通信设备中动态调整射频电路的设备和方法。 无线通信设备可以通过主要分量载波和辅助分量载波来使用载波聚合来接收下行链路通信。 当未启用载波聚合时,无线通信设备将根据默认值调整射频电路。 当启用载波聚合时,无线通信设备评估主要和次要分量载波的射频条件,并且基于上行链路和/或下行链路通信是否受功率约束来调整射频电路。 当上行链路通信功率受限时,无线通信设备通过主要分量载波调整射频电路以获得最佳性能,并且当上行链路通信不受功率限制时,无线通信设备通过组合来调整射频电路以获得最佳性能 用于载波聚合的主要和次要分量载波。

    Uplink and downlink semi-persistent scheduling alignment
    115.
    发明授权
    Uplink and downlink semi-persistent scheduling alignment 有权
    上行链路和下行链路半持续调度对齐

    公开(公告)号:US09462627B2

    公开(公告)日:2016-10-04

    申请号:US14451035

    申请日:2014-08-04

    Applicant: Apple Inc.

    CPC classification number: H04W76/048 H04W72/042 H04W76/28

    Abstract: This disclosure relates to aligning semi-persistent scheduling (SPS) uplink and downlink communications. In one embodiment, a cellular base station may select SPS parameters for a wireless device. The SPS parameters may include a subframe offset, a downlink SPS interval, and an uplink SPS interval. The subframe offset may indicate a subframe at which both an initial downlink subframe and an initial uplink subframe are scheduled. An indication of the SPS parameters may be transmitted to the UE. The wireless device and the cellular base station may perform uplink and downlink communication according to the SPS parameters.

    Abstract translation: 本公开涉及对准半静态调度(SPS)上行链路和下行链路通信。 在一个实施例中,蜂窝基站可以为无线设备选择SPS参数。 SPS参数可以包括子帧偏移,下行链路SPS间隔和上行链路SPS间隔。 子帧偏移可以指示初始下行链路子帧和初始上行链路子帧都被调度的子帧。 可以向UE发送SPS参数的指示。 无线设备和蜂窝基站可以根据SPS参数执行上行链路和下行链路通信。

    Shortened HARQ timelines for low bandwidth applications
    116.
    发明授权
    Shortened HARQ timelines for low bandwidth applications 有权
    缩短了低带宽应用的HARQ时间线

    公开(公告)号:US09408144B2

    公开(公告)日:2016-08-02

    申请号:US14074204

    申请日:2013-11-07

    Applicant: Apple Inc.

    Abstract: Apparatus and methods for performing reduced hybrid automatic repeat request (HARQ) operations for a user equipment (UE) during a data communications session, e.g., for voice over LTE (VoLTE) communications. The UE can initially inform the network, via an enhanced NodeB (eNodeB), that the UE is capable of performing advanced HARQ functions. The eNodeB can further evaluate various network conditions to determine when reduced HARQ operations should be employed. When network conditions allow, the eNodeB can transmit an RRC message to the UE, including reduced HARQ timeline configuration information. Thereafter, the UE and the eNodeB can collaborate to institute the reduced HARQ timeline to schedule an application data retransmission during the data communications session. The reduced HARQ operations can be performed in conjunction with various semi-persistent scheduling (SPS) and connected mode discontinuous reception (C-DRX) operations, to further conserve UE device resources.

    Abstract translation: 用于在数据通信会话期间(例如,对于LTE(VoLTE)语音通信)的用户设备(UE)进行减少的混合自动重复请求(HARQ)操作的设备和方法。 UE可以最初通过增强型节点B(eNodeB)通知该网络UE能够执行高级HARQ功能。 eNodeB可以进一步评估各种网络条件以确定何时应采用减少的HARQ操作。 当网络条件允许时,eNodeB可以向UE发送RRC消息,包括减少的HARQ时间线配置信息。 此后,UE和eNodeB可以协作来实现减少的HARQ时间线,以在数据通信会话期间调度应用数据重传。 减少的HARQ操作可以结合各种半静态调度(SPS)和连接的模式不连续接收(C-DRX)操作来执行,以进一步节省UE设备资源。

    Reducing power consumption when bridging independent chipsets
    118.
    发明授权
    Reducing power consumption when bridging independent chipsets 有权
    桥接独立芯片组时降低功耗

    公开(公告)号:US09161301B2

    公开(公告)日:2015-10-13

    申请号:US13760689

    申请日:2013-02-06

    Applicant: Apple Inc.

    Abstract: A wireless communication device architecture is provided. The wireless communication device can include a WLAN chipset, a cellular chipset, and an application processor. The application processor can include a first portion and a second portion. The first portion can include at least one root complex powered via a dedicated power domain, which can be independent of at least one second power domain that can power the second portion. The WLAN chipset can coupled to a first port of the at least one root complex via a first interface. The cellular chipset can be coupled to a second port of the at least one root complex via a second interface. The at least one root complex can use power received via the dedicated power domain to bridge the WLAN chipset and the cellular chipset while the second portion of the application processor is sleeping.

    Abstract translation: 提供了一种无线通信设备架构。 无线通信设备可以包括WLAN芯片组,蜂窝芯片组和应用处理器。 应用处理器可以包括第一部分和第二部分。 第一部分可以包括经由专用功率域供电的至少一个根组合,其可以独立于可以为第二部分供电的至少一个第二功率域。 WLAN芯片组可以经由第一接口耦合到至少一个根复合体的第一端口。 蜂窝芯片组可以经由第二接口耦合到至少一个根复合体的第二端口。 当应用处理器的第二部分正在睡眠时,至少一个根复合体可以使用通过专用功率域接收的功率来桥接WLAN芯片组和蜂窝芯片组。

    SHORTENED HARQ TIMELINES FOR LOW BANDWIDTH APPLICATIONS
    119.
    发明申请
    SHORTENED HARQ TIMELINES FOR LOW BANDWIDTH APPLICATIONS 有权
    用于低带宽应用的更短的HARQ时序

    公开(公告)号:US20150124671A1

    公开(公告)日:2015-05-07

    申请号:US14074204

    申请日:2013-11-07

    Applicant: Apple Inc.

    Abstract: Apparatus and methods for performing reduced hybrid automatic repeat request (HARQ) operations for a user equipment (UE) during a data communications session, e.g., for voice over LTE (VoLTE) communications. The UE can initially inform the network, via an enhanced NodeB (eNodeB), that the UE is capable of performing advanced HARQ functions. The eNodeB can further evaluate various network conditions to determine when reduced HARQ operations should be employed. When network conditions allow, the eNodeB can transmit an RRC message to the UE, including reduced HARQ timeline configuration information. Thereafter, the UE and the eNodeB can collaborate to institute the reduced HARQ timeline to schedule an application data retransmission during the data communications session. The reduced HARQ operations can be performed in conjunction with various semi-persistent scheduling (SPS) and connected mode discontinuous reception (C-DRX) operations, to further conserve UE device resources.

    Abstract translation: 用于在数据通信会话期间(例如,对于LTE(VoLTE)语音通信)的用户设备(UE)进行减少的混合自动重复请求(HARQ)操作的设备和方法。 UE可以最初通过增强型节点B(eNodeB)通知该网络UE能够执行高级HARQ功能。 eNodeB可以进一步评估各种网络条件以确定何时应采用减少的HARQ操作。 当网络条件允许时,eNodeB可以向UE发送RRC消息,包括减少的HARQ时间线配置信息。 此后,UE和eNodeB可以协作来实现减少的HARQ时间线,以在数据通信会话期间调度应用数据重传。 减少的HARQ操作可以结合各种半静态调度(SPS)和连接的模式不连续接收(C-DRX)操作来执行,以进一步节省UE设备资源。

    CONTROL SIGNALING OPTIMIZATION FOR LTE COMMUNICATIONS
    120.
    发明申请
    CONTROL SIGNALING OPTIMIZATION FOR LTE COMMUNICATIONS 有权
    用于LTE通信的控制信号优化

    公开(公告)号:US20150092646A1

    公开(公告)日:2015-04-02

    申请号:US14500917

    申请日:2014-09-29

    Applicant: Apple Inc.

    Abstract: The disclosure describes apparatus and methods for including downlink control information (DCI) normally associated with the physical downlink control channel (PDCCH) within a physical downlink shared channel (PDSCH) to reduce power consumption for a user equipment (UE) operating in a Long Term Evolution (LTE) radio resource control (RRC) connected mode. An enhanced NodeB base station can be configured to generate DCI associated with a future downlink resource assignment or uplink grant for the UE on the PDSCH or a physical uplink shared channel (PUSCH), and then include this DCI within the payload of a current PDSCH communication, such that the PDCCH does not need to be decoded by the UE during a time when DCI for future PDSCH communication is included within a current PDSCH.

    Abstract translation: 本公开描述了用于将通常与物理下行链路控制信道(PDCCH)相关联的下行链路控制信息(DCI)包括在物理下行链路共享信道(PDSCH)内的装置和方法,以减少用于长期运行的用户设备(UE)的功耗 演进(LTE)无线电资源控制(RRC)连接模式。 增强型NodeB基站可以被配置为在PDSCH或物理上行链路共享信道(PUSCH)上生成与UE的未来下行链路资源分配或上行链路许可相关联的DCI,然后将该DCI包括在当前PDSCH通信的有效载荷内 ,使得在用于将来的PDSCH通信的DCI被包括在当前PDSCH内的时间期间,PDCCH不需要被UE解码。

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