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    Method and apparatus for time division LTE transmission in unlicensed radio frequency bands
    31.
    发明授权
    Method and apparatus for time division LTE transmission in unlicensed radio frequency bands 有权

    公开(公告)号：US10206223B2

    公开(公告)日：2019-02-12

    申请号：US15014498

    申请日：2016-02-03

    Applicant: Apple Inc.

    Inventor： Farouk Belghoul ,  Tarik Tabet ,  Syed A. Mujtaba

    IPC: H04W72/12 ,  H04W76/15 ,  H04L1/18 ,  H04L5/14 ,  H04W72/04 ,  H04W76/02 ,  H04L5/00 ,  H04W84/12 ,  H04W16/14 ,  H04L27/00

    Abstract: Apparatus and methods for time division based communication between a wireless device and a wireless network in a licensed radio frequency (RF) band and an unlicensed RF band are disclosed. The wireless device receives downlink control information (DCI), via a primary component carrier (PCC) of a primary cell (Pcell) in the licensed RF band, indicating downlink (DL) data transmission via a secondary component carrier (SCC) of a secondary cell (Scell) in the unlicensed RF band. The wireless device receives via the SCC part of the DL data transmission and transmits a control message via the PCC in response. The wireless device sends a scheduling request (SR) to the eNodeB and receives uplink (UL) transmission opportunities in a combination of the licensed RF band and the unlicensed RF band. The wireless device performs a clear channel assessment before reserving and transmitting to the eNodeB in the unlicensed RF band.

    Single-radio device supporting coexistence between multiple radio access technologies
    34.
    发明授权
    Single-radio device supporting coexistence between multiple radio access technologies 有权

    公开(公告)号：US09750075B2

    公开(公告)日：2017-08-29

    申请号：US14231479

    申请日：2014-03-31

    Applicant: Apple Inc.

    Inventor： Syed A. Mujtaba ,  Wen Zhao ,  Xiaowen Wang ,  Vinay Majjigi

    IPC: H04W76/04 ,  H04W88/06 ,  H04W48/18 ,  H04W24/00 ,  H04W68/00

    CPC classification number: H04W76/27 ,  H04W24/00 ,  H04W48/18 ,  H04W68/00 ,  H04W88/06

    Abstract: Electronic devices may be provided that contain wireless communication circuitry. The wireless communication circuitry may include radio-frequency transceiver circuitry coupled to antennas. An electronic device may include a baseband processor and other storage and processing circuitry that implements protocol stacks for handling multiple radio access technologies. The storage and processing circuitry may use the transceiver circuitry to convey data using a first radio access technology while periodically interrupting the conveying of the data to monitor a paging channel using a second radio access technology. In performing the paging channel monitoring operations, the storage and processing circuitry may enforce a time limit that ensures that operations using the first radio access technology are not disrupted more than desired.

    Method and apparatus for flushing uplink HARQ buffer in C-DRX mode
    35.
    发明授权
    Method and apparatus for flushing uplink HARQ buffer in C-DRX mode 有权
    用于在C-DRX模式下刷新上行HARQ缓冲器的方法和装置

    公开(公告)号：US09564997B2

    公开(公告)日：2017-02-07

    申请号：US14453408

    申请日：2014-08-06

    Applicant: APPLE INC.

    Inventor： Christian W. Mucke ,  Johnson O. Sebeni ,  Navid Damji ,  Samy Khay-Ibbat ,  Syed A. Mujtaba ,  Tarik Tabet ,  Vinay R. Majjigi

    IPC: H04W4/00 ,  H04L1/18 ,  H04W52/02

    CPC classification number: H04L1/1874 ,  H04L1/1854 ,  H04W52/0209 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/23 ,  Y02D70/24

    Abstract: A method for determining whether an acknowledgement received by a user equipment from an external device is a forced acknowledgement. The method including transmitting a set of data stored in an uplink buffer to an external device, receiving an acknowledgement from the external device, determining if the acknowledgement received from the external device was a forced acknowledgement and flushing out an uplink buffer if determined that the acknowledgement was not a forced acknowledgement. The determining the acknowledgement is a forced acknowledgment being based on whether an uplink retransmission collides with one or more scheduled transmission times, a Physical Hybrid-ARQ Indicator Channel (PHICH) falls between gap measurements and an uplink retransmission collides with one of the gap measurements or a TTI bundling retransmission collides with a gap measurement. If the acknowledgement is not a forced acknowledgment, a set of data stored in the uplink buffer is retransmitted to the external device.

    Abstract translation: 一种用于确定用户设备从外部设备接收到的确认是否是强制确认的方法。 该方法包括将存储在上行链路缓冲器中的一组数据发送到外部设备，从外部设备接收确认，确定从外部设备接收到的确认是否是强制确认，并且如果确定确认 不是强制确认。 确定确认是基于上行链路重传是否与一个或多个调度的传输时间相冲突的强制确认，物理混合ARQ指示符信道（PHICH）落在间隙测量之间，并且上行链路重传与间隙测量之一相冲突， TTI捆绑重传与间隙测量相冲突。 如果确认不是强制确认，则将存储在上行链路缓冲器中的一组数据重新发送到外部设备。

    Power management based on adaptive receiver selection
    36.
    发明授权
    Power management based on adaptive receiver selection 有权
    基于自适应接收机选择的电源管理

    公开(公告)号：US09560598B2

    公开(公告)日：2017-01-31

    申请号：US14018179

    申请日：2013-09-04

    Applicant: Apple Inc.

    Inventor： Syed A. Mujtaba ,  Kee-Bong Song ,  Youngjae Kim

    IPC: H04W52/02 ,  H04W52/24

    CPC classification number: H04W52/028 ,  H04W52/0245 ,  H04W52/241 ,  H04W52/243 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144

    Abstract: In order to reduce power consumption of an electronic device during wireless communication, the electronic device may transition between a baseline (simple) receiver and a higher-power advanced receiver based on network conditions and/or environmental conditions. For example, the transition to the advanced receiver may occur when it offers improved communication performance over the baseline receiver, such as when there is significant interference and a high data rate, or when there is significant interference and a signal-to-noise ratio (SNR) is low. Similarly, the transition to the baseline receiver may occur when the capabilities of the advanced receiver are not needed, such as when there is less interference, or when the data rate is lower and the SNR is high. In this way, the electronic device can avoid the added power consumption associated with the advanced receiver except where the communication performance offered by the advanced receiver is needed.

    Abstract translation: 为了在无线通信期间降低电子设备的功耗，电子设备可以基于网络条件和/或环境条件在基线（简单）接收机和较高功率的高级接收机之间转换。 例如，当高级接收机提供比基线接收机更好的通信性能时，例如当存在显着干扰和高数据速率时，或者当存在显着的干扰和信噪比（例如， SNR）低。 类似地，当不需要高级接收机的能力时，例如当干扰较小或数据速率较低且SNR高时，可能会发生向基线接收机的转换。 以这种方式，除了需要高级接收机提供的通信性能之外，电子设备可以避免与高级接收机相关联的附加功率消耗。

    Antenna switching system with adaptive switching criteria
    38.
    发明授权
    Antenna switching system with adaptive switching criteria 有权
    具有自适应切换标准的天线切换系统

    公开(公告)号：US09509343B2

    公开(公告)日：2016-11-29

    申请号：US14962084

    申请日：2015-12-08

    Applicant: Apple Inc.

    Inventor： Syed A. Mujtaba ,  Kee-Bong Song

    IPC: H04B1/00 ,  H04W64/00 ,  H04B1/10 ,  H04B7/08 ,  G01S19/13 ,  H04W88/06

    CPC classification number: H04B1/0064 ,  G01S19/13 ,  H04B1/1027 ,  H04B7/0808 ,  H04B7/082 ,  H04B7/0834 ,  H04W64/006 ,  H04W88/06

    Abstract: Apparatuses may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry coupled to multiple antennas. Signal strength measurements may be gathered using the antennas and corresponding signal strength difference measurements may be produced to reflect which of the antennas is exhibiting superior performing. Information may be gathered relating to the fading environment of the communications circuitry, such as whether the wireless communications circuitry is transitioning between a fast fading environment and a slow fading environment. For example, the wireless communications circuitry may further include a satellite positioning system receiver or an accelerometer, which may be used in gathering the information. The difference measurements may be filtered and compared to antenna switching criteria such as antenna switching thresholds. An antenna switching threshold may be adjusted in real time based at least in part on the gathered information.

    Abstract translation: 可以提供包含无线通信电路的装置。 无线通信电路可以包括耦合到多个天线的射频收发器电路。 可以使用天线收集信号强度测量值，并且可以产生对应的信号强度差异测量结果，以反映哪些天线表现出优异的性能。 可以收集关于通信电路的衰落环境的信息，诸如无线通信电路是否在快速衰落环境和慢衰落环境之间转变。 例如，无线通信电路还可以包括可用于收集信息的卫星定位系统接收机或加速度计。 差分测量可以被滤波并且与诸如天线切换阈值的天线切换标准进行比较。 可以至少部分地基于所收集的信息实时地调整天线切换阈值。

    Control signaling optimization for LTE communications
    39.
    发明授权
    Control signaling optimization for LTE communications 有权
    LTE通信控制信令优化

    公开(公告)号：US09445429B2

    公开(公告)日：2016-09-13

    申请号：US14502507

    申请日：2014-09-30

    Applicant: Apple Inc.

    Inventor： Tarik Tabet ,  Vinay R. Majjigi ,  Christian W. Mucke ,  Syed A. Mujtaba

    IPC: H04W52/00 ,  H04W52/02 ,  H04W72/12 ,  H04W28/02 ,  H04L5/00

    CPC classification number: H04W72/1289 ,  H04L5/0044 ,  H04L5/0053 ,  H04W28/0221 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/166 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/26

    Abstract: The disclosure describes procedures for including downlink control information (DCI) within a physical downlink shared channel (PDSCH) communication to reduce power consumption for a user equipment (UE) operating in a Long Term Evolution (LTE) network. A network apparatus can be configured to identify an expected DCI change for the UE, determine whether an LTE subframe location for the DCI change is known, generate either a general or a specific DCI change indicator, and send the corresponding DCI change indicator to the UE on the PDSCH. The specific DCI change indicator can include a bitmap identifying a particular upcoming LTE subframe where the UE is required to decode the PDCCH for DCI, and the general DCI change indicator can include a bit flag identifying a time associated with one or more upcoming LTE subframes when the UE should decode the PDCCH for DCI.

    Abstract translation: 本公开描述了在物理下行链路共享信道（PDSCH）通信中包括下行链路控制信息（DCI）以减少在长期演进（LTE）网络中操作的用户设备（UE）的功耗的过程。 网络设备可以被配置为识别UE的预期DCI改变，确定用于DCI改变的LTE子帧位置是否已知，生成一般或特定DCI改变指示符，并将相应的DCI改变指示符发送给UE 在PDSCH上。 特定DCI变化指示符可以包括标识UE需要解码DCI的PDCCH的特定即将到来的LTE子帧的位图，并且一般的DCI变化指示符可以包括标识与一个或多个即将到来的LTE子帧相关联的时间的位标志， UE应对DCI的PDCCH进行解码。

    Facilitating in-device coexistence between wireless communication technologies
    40.
    发明授权
    Facilitating in-device coexistence between wireless communication technologies 有权
    促进无线通信技术之间的设备间共存

    公开(公告)号：US09049747B2

    公开(公告)日：2015-06-02

    申请号：US13909298

    申请日：2013-06-04

    Applicant: Apple Inc.

    Inventor： Wen Zhao ,  Paul V. Flynn ,  William S. Burchill ,  Vinay R. Majjigi ,  Xiaowen Wang ,  Syed A. Mujtaba ,  Kee-Bong Song

    IPC: H04B1/00 ,  H04B15/00 ,  H04W88/06

    CPC classification number: H04B1/1081 ,  H04B17/29 ,  H04L47/14 ,  H04L47/24 ,  H04L47/25 ,  H04L47/41 ,  H04W28/0236 ,  H04W52/243 ,  H04W52/265 ,  H04W52/267 ,  H04W52/36 ,  H04W72/0413 ,  H04W88/06

    Abstract: A method for facilitating in-device coexistence between wireless communication technologies on a wireless communication device is provided. The method can include transmitting data traffic from the wireless communication device via an aggressor wireless communication technology; determining occurrence of an in-device interference condition resulting from transmission of the data traffic via the aggressor wireless communication technology interfering with concurrent data reception by the wireless communication device via a victim wireless communication technology; and reducing a bit rate of the data traffic transmitted via the aggressor wireless communication technology in response to the in-device interference condition.

    Abstract translation: 提供了一种用于促进无线通信设备上的无线通信技术之间的设备内共存的方法。 该方法可以包括经由侵略者无线通信技术从无线通信设备发送数据业务; 确定由干扰由无线通信设备经受害无线通信技术的并发数据接收的侵扰者无线通信技术的数据业务的传输导致的设备内干扰条件的发生; 并且响应于设备内干扰条件，降低通过侵入者无线通信技术传输的数据业务的比特率。

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