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    Carrier aggregation with improved efficiency
    32.
    发明授权
    Carrier aggregation with improved efficiency 有权

    公开(公告)号：US10432366B2

    公开(公告)日：2019-10-01

    申请号：US15584251

    申请日：2017-05-02

    Applicant: Apple Inc.

    Inventor： Tarik Tabet ,  Awais M. Hussain ,  Rafael L. Rivera-Barreto ,  Matthias Sauer ,  Christian W. Mucke ,  David Boettger ,  Moustafa M. Elsayed

    IPC: H04L5/00 ,  H04W72/04 ,  H04W88/08

    Abstract: In some embodiments, a wireless device such as a user equipment (UE) may communicate with a base station using an advanced form of carrier aggregation. The UE may provide signaling to the network specifying a number P of downlink component carriers to be configured for use by the UE for downlink carrier aggregation and a number Q of uplink component carriers to be configured for use by the UE for uplink carrier aggregation. The UE can only utilize a lesser number M of downlink component carriers at any given time in downlink carrier aggregation and can only utilize a lesser number N of uplink component carriers at any given time in uplink carrier aggregation. Thus the UE may request the network to configure a greater number P and Q of downlink and uplink component carriers, respectively, than the UE can actually use at any instant of time.

    Wake-Up Frame with Configurable Payload
    33.
    发明申请
    Wake-Up Frame with Configurable Payload 审中-公开

    公开(公告)号：US20190069231A1

    公开(公告)日：2019-02-28

    申请号：US16109985

    申请日：2018-08-23

    Applicant: Apple Inc.

    Inventor： Jarkko L. Kneckt ,  Matthew L. Semersky ,  Christiaan A. Hartman ,  Oren Shani ,  Yong Liu ,  Xiaowen Wang ,  Tushar R. Shah ,  Yoel Boger ,  Rajneesh Kumar ,  Josef Peery ,  Christian W. Mucke ,  Guoqing Li

    IPC: H04W52/02 ,  H04W28/06

    Abstract: An interface circuit in an electronic device (such as an access point) may utilize a configurable wake-up-frame format. During operation, the interface circuit may receive a wake-up-radio (WUR)-setup request associated with a recipient electronic device, where the WUR-setup request specifies a proposed configurable wake-up-frame format. In response, the electronic device may determine the configurable wake-up-frame format to be used based at least in part on the proposed configurable wake-up-frame format. Then, the interface circuit may provide a WUR-setup response intended for the recipient electronic device, where the WUR-setup response specifies the configurable wake-up-frame format selected for use. Note that the configurable wake-up-frame format may specify a payload length in a wake-up frame and/or one or more operations of at least one of the recipient electronic device or the electronic device after the wake-up frame is transmitted by the electronic device.

    Efficient Scan and Service Discovery
    34.
    发明申请
    Efficient Scan and Service Discovery 审中-公开

    公开(公告)号：US20180376419A1

    公开(公告)日：2018-12-27

    申请号：US16013697

    申请日：2018-06-20

    Applicant: Apple Inc.

    Inventor： Guoqing Li ,  Yong Liu ,  Oren Shani ,  Christiaan A. Hartman ,  Xiaowen Wang ,  Christian W. Mucke ,  Tushar R. Shah ,  Jarkko L. Kneckt ,  Matthew L. Semersky ,  Yoel Boger ,  Josef Peery ,  Rajneesh Kumar

    IPC: H04W52/02

    Abstract: An interface circuit in an electronic device (such as an access point) may provide a wake-up beacon to a recipient electronic device. During operation, the interface circuit may provide a wake-up beacon associated with a predefined sub-channel in one or more channels in a band of frequencies, where the wake-up beacon is for a wake-up radio in the recipient electronic device. Moreover, the wake-up beacon may be provided within an associated time interval, such as a keep-alive interval of the electronic device. In some embodiments, the wake-up beacon includes a field with channel information that specifies one or more second channels used by a main radio in the recipient electronic device. Alternatively or additionally, the wake-up beacon may include a field with service information that specifies one or more types of services and/or a field with information specifying a transmit power of the interface circuit.

    HetNet mobility management
    37.
    发明授权
    HetNet mobility management 有权

    公开(公告)号：US09699704B2

    公开(公告)日：2017-07-04

    申请号：US14195681

    申请日：2014-03-03

    Applicant: Apple Inc.

    Inventor： Ajoy K. Singh ,  Tarik Tabet ,  Wen Zhao ,  S. Aon Mujtaba ,  Christian W. Mucke

    IPC: H04W36/32 ,  H04W36/00

    CPC classification number: H04W36/32 ,  H04W36/0033

    Abstract: A wireless communication system is presented for robust mobility management in a HetNet communication system. A source cell can prepare a macro cell and a target small cell as handover candidates during handover decision making and/or preparation. The mobile device is informed about the prepared macro cell and target small cell using radio resource control (RRC) messaging. After receiving a handover command or detecting radio frequency (RF) loss, the mobile device can try to connect with the target small cell. If the mobile device is unable to connect to the target small cell, the UE can fall back and connect to the macro cell.

    Method and apparatus for flushing uplink HARQ buffer in C-DRX mode
    38.
    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。

    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。

    Systems and Methods for Intelligent Frequency Selection in Carrier Aggregation Enabled Networks
    40.
    发明申请
    Systems and Methods for Intelligent Frequency Selection in Carrier Aggregation Enabled Networks 有权
    载波聚合启用网络中智能频率选择的系统与方法

    公开(公告)号：US20150173009A1

    公开(公告)日：2015-06-18

    申请号：US14536371

    申请日：2014-11-07

    Applicant: APPLE INC.

    Inventor： Sreevalsan Vallath ,  Deepankar Bhattacharjee ,  Navid Damji ,  Christian W. Mucke ,  Rafael L. Rivera-Barreto ,  Tarik Tabet

    IPC: H04W48/18

    CPC classification number: H04W48/18 ,  H04L5/001 ,  H04W48/20

    Abstract: Systems and methods that enhance radio link performance in a multi-carrier environment. A method may be performed by a UE that includes scanning a plurality of carrier components for a primary cell, determining a first bandwidth of the primary cell, scanning for a secondary cell, determining a second bandwidth of the secondary cell, determining a maximum aggregated bandwidth by combining the first bandwidth and the second bandwidth and when the maximum aggregated bandwidth exceeds a bandwidth capability of the UE, performing a cell selection procedure to select one of the primary cell or the secondary cell based on a higher of the first bandwidth and the second bandwidth.

    Abstract translation: 在多载波环境中增强无线电链路性能的系统和方法。 一种方法可以由UE执行，该UE包括扫描主小区的多个载波分量，确定主小区的第一带宽，二次小区的扫描，确定次小区的第二带宽，确定最大聚合带宽 通过组合第一带宽和第二带宽，并且当最大聚合带宽超过UE的带宽能力时，执行小区选择过程以基于第一带宽和第二带宽中的较高者选择主小区或辅小区中的一个 带宽。

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