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    Wireless Device Based Inter Radio Access Technology Handover Initiation
    12.
    发明申请
    Wireless Device Based Inter Radio Access Technology Handover Initiation 有权
    基于无线设备的无线接入技术切换启动

    公开(公告)号：US20140113630A1

    公开(公告)日：2014-04-24

    申请号：US13777454

    申请日：2013-02-26

    Applicant: APPLE INC.

    Inventor： Sarma V. Vangala ,  Samy Khay-Ibbat ,  Si Li ,  Sreevalsan Vallath ,  Swaminathan Balakrishnan ,  Tahir Shamim ,  Tarik Tabet ,  Wael S. Barakat ,  Wanping Zhang

    IPC: H04W36/26

    CPC classification number: H04W36/26 ,  H04W36/14 ,  H04W36/30 ,  H04W36/36

    Abstract: User Equipment (UE) based forced inter radio access technology (iRAT) handover. A connection to a network may be established via a first cell operating according to a first radio access technology (RAT). It may be determined to initiate a handover of the UE from the first cell to a second cell operating according to a second RAT. An indication may be transmitted to the network to initiate a handover of the UE from the first cell to the second cell. An indication may be received from the network to perform handover of the UE from the first cell to the second cell in response to the indication to initiate the handover. Handover of the UE from the first cell to the second cell may be performed in response to the indication to perform the handover. Handover may include releasing the connection to the network via the first cell and establishing a connection to the network via the second cell.

    Abstract translation: 基于用户设备（UE）的强制无线接入技术（iRAT）切换。 可以经由根据第一无线接入技术（RAT）操作的第一小区来建立到网络的连接。 可以确定发起UE从第一小区到根据第二RAT操作的第二小区的切换。 可以向网络发送指示以发起UE从第一小区到第二小区的切换。 可以响应于启动切换的指示，从网络接收指示以执行UE从第一小区到第二小区的切换。 可以响应于执行切换的指示来执行UE从第一小区到第二小区的切换。 切换可以包括经由第一小区释放到网络的连接，并经由第二小区建立到网络的连接。

    MISSED RANK REPORT IN DUAL NETWORK RADIO RESOURCE MANAGEMENT
    13.
    发明申请
    MISSED RANK REPORT IN DUAL NETWORK RADIO RESOURCE MANAGEMENT 有权
    双网无线电资源管理中的错误排名报告

    公开(公告)号：US20140016490A1

    公开(公告)日：2014-01-16

    申请号：US13940154

    申请日：2013-07-11

    Applicant: Apple Inc.

    Inventor： Tarik Tabet ,  Navid Damji ,  Sreevalsan Vallath ,  Sarma V. Vangala ,  Samy Khay-Ibbat

    IPC: H04W24/10

    CPC classification number: H04W24/10 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0639 ,  H04L1/0026 ,  H04L1/0027 ,  H04W72/1215 ,  H04W72/1284

    Abstract: A method for handling a missed rank report during a tune-away period is provided. The method can include a wireless communication device tuning away from a first network to a second network for a tune-away period; returning to the first network from the tune-away period; determining that a scheduled rank report was missed during the tune-away period; generating a Channel State Indicator (CSI) report based on a previously defined Rank Indicator (RI) value known to the first network in response to missing the scheduled rank report; and sending the CSI report to the first network.

    Abstract translation: 提供了一种在调谐期间处理错过等级报告的方法。 该方法可以包括无线通信设备从远离第一网络调谐到第二网络以进行调谐时段; 从调离期回到第一个网络; 确定在调离期间错过了排期的报告; 基于先前定义的第一网络已知的秩响应（RI）值响应于丢失所述排列的报告而产生信道状态指示符（CSI）报告; 并将CSI报告发送到第一个网络。

    Adaptive throughput and bandwidth for enhanced category of mobile devices
    15.
    发明授权
    Adaptive throughput and bandwidth for enhanced category of mobile devices 有权

    公开(公告)号：US10660110B2

    公开(公告)日：2020-05-19

    申请号：US15496388

    申请日：2017-04-25

    Applicant: Apple Inc.

    Inventor： Tarik Tabet ,  Samy Khay-Ibbat ,  Krisztian Kiss ,  Rafael L. Rivera-Barreto ,  Cesar Perez ,  Moustafa M. Elsayed ,  Prashant H. Vashi

    IPC: H04W72/08 ,  H04W72/04

    Abstract: A user equipment (UE) device may communicate according to a new device category satisfying specified QoS (quality of service) requirements while also satisfying specified link budget requirements, and additional optimization requirements. The new device category may identify the UE device as a wearable device. According to some embodiments, LTE category M may be extended to support non-MTC operations performed by wearable devices. For example, the new device category may support UE mobility and may disallow access barring. Additional extensions may be implemented in response to an indication by the UE that the UE is implementing a specific application, such as VoLTE or a near real-time application, such as audio streaming. In some scenarios, the indication may include the UE indicating a specific QCI value. In some scenarios, the indication may include the UE attaching to a specific APN.

    Adaptive C-DRX Management
    16.
    发明申请
    Adaptive C-DRX Management 审中-公开

    公开(公告)号：US20200059988A1

    公开(公告)日：2020-02-20

    申请号：US16663437

    申请日：2019-10-25

    Applicant: Apple Inc.

    Inventor： Tarik Tabet ,  Ajoy K. Singh ,  Sarma V. Vangala ,  Vinay R. Majjigi ,  Samy Khay-Ibbat

    IPC: H04W76/28

    Abstract: This disclosure relates to techniques for adaptive C-DRX Management. A wireless device and a cellular base station may establish a cellular link. According to some embodiments, the base station may monitor upcoming traffic with the wireless device. Based at least in part on the upcoming traffic for the wireless device, the base station may provide a command indicating to the wireless device to enter C-DRX. The command may further indicate to the wireless device a number of C-DRX cycles through which to remain in a low power state.

    Radio resource management for packet-switched voice communication
    17.
    发明授权
    Radio resource management for packet-switched voice communication 有权

    公开(公告)号：US10462192B2

    公开(公告)日：2019-10-29

    申请号：US14817590

    申请日：2015-08-04

    Applicant: Apple Inc.

    Inventor： Huarui Liang ,  Tarik Tabet ,  Dawei Zhang ,  Farouk Belghoul ,  Samy Khay-Ibbat ,  Rafael L. Rivera-Barreto

    IPC: H04L29/06 ,  H04L12/14 ,  H04W28/24 ,  H04W76/12 ,  H04W4/24 ,  H04M15/00

    Abstract: Techniques are disclosed relating to informing a network that a UE desires packet-switched voice communication. In one embodiment, a method includes receiving first information from a UE device requesting voice communication over a packet-switched network. In this embodiment, the method further includes transmitting, in response to the first information, second information to a base station serving the UE device, wherein the second information indicates that the UE device is requesting voice communication over the packet-switched network. In this embodiment, the transmitting is performed prior to establishment of a dedicated bearer by the base station for the UE device. In this embodiment, the second information operates to configure communications between the base station and the UE device to provide a particular quality of service for the packet-switched voice communication using the dedicated bearer.

    System and method for selective prevention of transmitting a scheduling request
    18.
    发明授权
    System and method for selective prevention of transmitting a scheduling request 有权

    公开(公告)号：US10187857B2

    公开(公告)日：2019-01-22

    申请号：US14498405

    申请日：2014-09-26

    Applicant: APPLE INC.

    Inventor： Samy Khay-Ibbat ,  Navid Damji ,  Shivesh Makharia ,  Johnson Sebeni ,  Sreevalsan Vallath ,  Longda Xing

    IPC: H04W52/22 ,  H04W52/02 ,  H04W72/04 ,  H04W72/12 ,  H04W76/28 ,  H04W84/04

    Abstract: A station that performs a method to coordinate transmissions of scheduling requests (SR) with OnDurations of a connected discontinuous reception (C-DRX) cycle. The station receives a packet at a packet arrival time relative to a schedule indicating the SR opportunities and onDurations, the SR opportunities occurring at a first interval, the onDurations occurring at a second interval, the first interval being less than the second interval. The station determines an SR opportunity subsequent to the packet arrival time that precedes an entirety of a subsequent onDuration, such that a transmission duration to transmit the SR and the packet maximally overlaps with the selected onDuration. A sleep mode of the processor of the station is used until a time associated with the selected SR opportunity. An active mode of the processor is used to transmit the SR and receive control channel information during the onDuration.

    Radio link monitoring for link-budget-limited devices
    19.
    发明授权
    Radio link monitoring for link-budget-limited devices 有权

    公开(公告)号：US10057860B2

    公开(公告)日：2018-08-21

    申请号：US15605977

    申请日：2017-05-26

    Applicant: Apple Inc.

    Inventor： Tarik Tabet ,  Samy Khay-Ibbat ,  Awais M. Hussain

    IPC: H04B7/00 ,  H04W52/24 ,  H04W72/08 ,  H04L5/00 ,  H04W52/26 ,  H04W72/04

    CPC classification number: H04W52/241 ,  H04L5/005 ,  H04L5/0057 ,  H04W52/262 ,  H04W52/32 ,  H04W72/0473 ,  H04W72/048 ,  H04W72/085

    Abstract: A link-budget-limited wireless communication device (UE) may implement improved radio link monitoring procedures for enhancing the link-budget of the UE. The UE may monitor the radio link and may determine whether the radio link can support a lowest acceptable link quality according to a hysteresis-based comparison that uses threshold values to determine error rates associated with a physical control channel. The UE may also identify itself to the network as a link-budget-limited device, and the network may enable special link-budget enhancing features for the UE, including boosting the power of the resource elements (REs) carrying physical channel signaling/data to the UE. The UE may detect the presence of power boost and may estimate/determine the power boost level. The UE may modify the threshold values based on the power boost detection and/or results of the power boost level estimation/determination, and may use the modified threshold values for determining radio link quality during radio link monitoring.

    Compressed System Information for Link Budget Limited UEs in a Radio Access Network
    20.
    发明申请
    Compressed System Information for Link Budget Limited UEs in a Radio Access Network 审中-公开

    公开(公告)号：US20180110036A1

    公开(公告)日：2018-04-19

    申请号：US15846524

    申请日：2017-12-19

    Applicant: Apple Inc.

    Inventor： Tarik Tabet ,  Awais M. Hussain ,  Samy Khay-Ibbat ,  Sarma V. Vangala ,  Rafael L. Rivera-Barreto

    IPC: H04W72/04 ,  H04W48/20 ,  H04W48/12

    CPC classification number: H04W72/042 ,  H04W48/12 ,  H04W48/20

    Abstract: Techniques are disclosed relating to broadcasting and receiving system information in a radio access network (RAN). In one embodiment, a base station includes at least one antenna, at least one radio, configured to perform cellular communication using a radio access technology (RAT), and one or more processors coupled to the radio. In this embodiment, the base station is configured to broadcast first system information blocks (SIBs) encoded using a first coding rate and a first identifier. In this embodiment, the base station is also configured to broadcast second SIBs encoded using a second coding rate that is lower than the first coding rate and a second identifier. In this embodiment, the second SIBs include only a portion of the information included in the first SIBs and the second SIBs are usable by user equipment devices (UEs) having a limited link budget to determine access parameters for the base station.

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