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公开(公告)号：US20180368153A1
公开(公告)日：2018-12-20
申请号：US15969653
申请日：2018-05-02
Applicant: Apple Inc.
Inventor： Yang Li , Wei Zeng , Zhu Ji , Beibei Wang , Jia Tang , Yuchul Kim , Haijing Hu , Dawei Zhang , Xiangying Yang , Sami M. Almalfouh , Johnson O. Sebeni , Wei Zhang , Tianyan Pu
IPC: H04W72/12
Abstract: Apparatuses, systems, and methods for a wireless device to perform simultaneous uplink activity for multiple RATs in the same carrier using frequency division multiplexing. The wireless device may establish a first wireless link with a first base station according to a first radio access technology (RAT) and a second wireless link with a second base station according to a second RAT. The first base station may provide a first cell operating in a first system bandwidth and the second base station may provide a second cell operating in a second system bandwidth. The wireless device may determine whether the wireless device has uplink activity scheduled according to both the first RAT and the second RAT. If so, the wireless device may perform uplink activity for both the first RAT and the second RAT in the first system bandwidth using frequency division multiplexing.
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公开(公告)号：US09967731B2
公开(公告)日：2018-05-08
申请号：US14799137
申请日：2015-07-14
Applicant: Apple Inc.
Inventor： Jianxiong Shi , Li Su , Johnson O. Sebeni
CPC classification number: H04W8/02 , H04B1/3816 , H04M15/49 , H04M15/80 , H04M15/8038 , H04M15/8083 , H04M15/8214 , H04W4/24 , H04W8/06 , H04W48/16 , H04W48/18
Abstract: Embodiments relate to a User Equipment (UE) device and associated method performing improved data roaming with reduced cost. The UE may comprise at least one radio, one or more processors, a first SIM entity and a second SIM entity. The first SIM entity may be configured to implement subscriber identity module (SIM) functionality for a subscribed voice and/or data plan of a first carrier. The second SIM entity may be configured to facilitate dynamic subscription to a local data plan of a second carrier when the UE is data roaming outside of a network of the first carrier. As one example, the UE, using the second SIM entity, may be configured to dynamically subscribe to a pay-as-you-go data plan of a second carrier, to which the user is not subscribed, when the user is data roaming outside of the first carrier's network. This dynamic subscribing may operate to reduce cost to the user, since the local data plan of the second carrier likely has less expensive data rates than those available during normal data roaming.
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公开(公告)号：US20170359160A1
公开(公告)日：2017-12-14
申请号：US15178952
申请日：2016-06-10
Applicant: APPLE INC.
Inventor： Zhu JI , Beibei Wang , Johnson O. Sebeni
CPC classification number: H04L5/14 , H04L5/0051 , H04L5/006 , H04L5/0098 , H04L5/1469 , H04L43/16 , H04W16/32 , H04W52/0216 , H04W52/0229 , H04W52/028 , H04W72/042 , H04W72/0446 , H04W76/15 , H04W88/02
Abstract: A method and device are described that may be implemented by a user equipment (UE) that established a first connection to a first network component, the user equipment configured to establish a second connection with a second network component, the user equipment configured for a carrier aggregation functionality, the first network component serving as a primary serving cell (PCell) and the second network component serving as a secondary serving cell (SCell). The method may include determining a cycle comprising a first time when a SCell measurement is performed and a remainder second time, when the cumulative first and second times is less than a threshold cycle time, determining an interruption opportunity based on activity between the UE and the PCell and when the interruption opportunity is determined, deactivating a radio frequency (RF) chain associated with the SCell during the second time.
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公开(公告)号：US09832811B2
公开(公告)日：2017-11-28
申请号：US15083142
申请日：2016-03-28
Applicant: Apple Inc.
Inventor： Zhu Ji , Johnson O. Sebeni , Tahir Shamim
IPC: H04W76/04 , H04W52/02 , H04B17/336 , H04L5/00 , H04W84/04
CPC classification number: H04W76/048 , H04B17/336 , H04L5/0005 , H04L5/0007 , H04W52/02 , H04W52/0216 , H04W52/0245 , H04W76/28 , H04W84/042 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/24
Abstract: Methods and apparatus to reduce power consumption in user equipment (UE) that operates in a connected discontinuous reception (C-DRX) mode while in communication with wireless network are disclosed. A C-DRX warm-up period before the UE enters an on-duration is adjusted dynamically based on one or more factors including a time division duplex (TDD) uplink/downlink (UL/DL) subframe configuration, signal-to-noise ratio (SNR) values, and Doppler shift values. The C-DRX warm-up period is adapted based on the pattern of DL subframes in the UL/DL subframe configuration by including DL subframes that best contribute to channel estimation and adaptive tracking loops based on measured SNR and Doppler shift conditions. Favorable channel conditions, such as higher SNR and lower Doppler shift, can require fewer DL subframes and consequently shorter C-DRX warm-up periods. Higher Doppler shift values indicate more rapidly varying channel conditions and require DL subframes positioned closer to the start of the on-duration.
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公开(公告)号：US09712306B2
公开(公告)日：2017-07-18
申请号：US14157509
申请日：2014-01-16
Applicant: Apple Inc.
Inventor： Zhu Ji , Johnson O. Sebeni , Navid Damji
CPC classification number: H04L5/0053 , H04L1/0003 , H04L1/0009 , H04L1/0019 , H04L1/203 , H04L5/0055
Abstract: A wireless communication system is presented in which subframe-specific link adaptation is performed. A mobile device can transmit a signal that informs a base station whether a particular subframe was received successfully. Additionally the mobile device can calculate channel state information (CSI) for a subframe and report the CSI to a base station. The reported CSI may or may not include an indicator for informing the base station about from which type of subframe the CSI was derived. The base station can receive the signal, the CSI and/or the indicator. Based on what information the base station has received, it performs subframe-specific BLER filtering and subframe-specific link adaptation scheduling and MCS adjustments.
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Patent Agency Ranking
公开(公告)号：US09591574B2
公开(公告)日：2017-03-07
申请号：US14050256
申请日：2013-10-09
Applicant: Apple Inc.
Inventor： Navid Damji , Johnson O. Sebeni , Tarik Tabet
CPC classification number: H04W52/0229 , H04B7/0877 , H04W76/27 , Y02D70/00 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/24
Abstract: Methods, apparatuses and computer readable media are described that configure wireless circuitry in a wireless communication device. The wireless communication device establishes a connection to a wireless network using wireless circuitry that includes a first radio frequency receive signal chain and a second radio frequency receive signal chain. The wireless communication device monitors uplink and downlink traffic activity communicated between the wireless communication device and the wireless network and measures downlink radio frequency receive signal conditions at the wireless communication device. The wireless communication device reconfigures the wireless circuitry to enable receive diversity or to disable receive diversity at the wireless communication device based on the monitored traffic activity and the measured downlink radio frequency receive signal conditions.
Abstract translation: 描述了在无线通信设备中配置无线电路的方法，设备和计算机可读介质。 无线通信设备使用包括第一射频接收信号链和第二射频接收信号链的无线电路建立到无线网络的连接。 无线通信设备监视在无线通信设备和无线网络之间传送的上行链路和下行链路业务活动，并测量无线通信设备的下行链路射频接收信号状况。 无线通信设备重新配置无线电路以使得能够基于所监视的业务活动和所测量的下行链路射频接收信号条件来在无线通信设备处接收分集或禁用接收分集。
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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.
Inventor： Tarik Tabet , Navid Damji , Ming Hu , Christian W. Mucke , Vinay R. Majjigi , Syed A. Mujtaba , Johnson O. Sebeni
IPC: H04W4/00 , H04W72/02 , H04W74/02 , H04L25/00 , H04W52/00 , H04W52/34 , H04L5/00 , H04W72/12 , H04W88/06 , H04W52/24 , H04W52/36 , H04W52/42
CPC classification number: H04W72/02 , H04L5/0039 , H04L5/0041 , H04L25/00 , H04W52/00 , H04W52/245 , H04W52/346 , H04W52/365 , H04W52/42 , H04W72/1215 , H04W74/02 , H04W88/06
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。
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228.发明授权Apparatus and methods for network detection and mitigation of hybrid client device operation 有权用于网络检测和缓解混合客户端设备操作的装置和方法公开(公告)号：US09426672B2
公开(公告)日：2016-08-23
申请号：US13851016
申请日：2013-03-26
Applicant: Apple Inc.
Inventor： Jianxiong Shi , Johnson O. Sebeni , Li Su , Navid Damji , Paul V. Flynn , Sarma V. Vangala , Sreevalsan Vallath , Thanigaivelu Elangovan , Zhu Ji
CPC classification number: H04W24/02 , H04L1/0026 , H04W48/02 , H04W72/1215 , H04W76/19 , H04W88/06
Abstract: Methods and apparatus for network-based detection and mitigation of hybrid client device reception outage events. For example, in one embodiment, a cellular device uses a single-radio solution to support circuit-switched calls on a CDMA 1X network and packet-switched calls on LTE. Periodically, the cellular device tunes away from LTE and monitors CDMA 1X activity, and vice versa. During these tuned-away periods, the network adjusts operation to mitigate adverse effects (e.g., underutilization of radio resources, synchronization loss, etc.).
Abstract translation: 用于基于网络的检测和缓解混合客户端设备接收中断事件的方法和装置。 例如，在一个实施例中，蜂窝设备使用单无线电解决方案来支持CDMA 1X网络上的电路交换呼叫和LTE上的分组交换呼叫。 周期性地，蜂窝设备调谐远离LTE并监视CDMA 1X活动，反之亦然。 在这些调谐期间，网络调整操作以减轻不利影响（例如，无线电资源利用不足，同步丢失等）。
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229.发明授权公开(公告)号：US09420523B2
公开(公告)日：2016-08-16
申请号：US14088271
申请日：2013-11-22
Applicant: Apple Inc.
Inventor： Navid Damji , Sree Ram Kodali , Johnson O. Sebeni , Zhu Ji
CPC classification number: H04W48/16 , H04W36/0083
Abstract: Methods and apparatuses to reduce a time to scan one or more frequency channel bands by a wireless communication device are disclosed. The methods include performing, at the wireless communication device, a power scan of a band of radio frequencies; determining a maximum power level for a frequency channel in the band of radio frequencies found by the power scan; comparing the maximum power level to a threshold power level; in an instance in which the maximum power level does not equal or exceed the threshold power level, attempting acquisition on a first number of frequency channels; and in an instance in which the maximum power equals or exceeds the threshold power level, attempting acquisition on a second number of frequency channels. The second number of frequency channels is greater than the first number of frequency channels.
Abstract translation: 公开了减少由无线通信设备扫描一个或多个频道频带的时间的方法和装置。 所述方法包括在所述无线通信设备处执行无线频带的功率扫描; 确定由功率扫描发现的射频频带中的频道的最大功率电平; 将最大功率电平与阈值功率电平进行比较; 在最大功率电平不等于或超过阈值功率电平的情况下，尝试在第一数量的频道上进行采集; 并且在最大功率等于或超过阈值功率电平的情况下，尝试在第二数量的频道上进行采集。 第二数量的频道大于第一数量的频道。
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230.发明授权公开(公告)号：US09301257B2
公开(公告)日：2016-03-29
申请号：US14279160
申请日：2014-05-15
Applicant: Apple Inc.
Inventor： Zhu Ji , Johnson O. Sebeni , Tahir Shamim
IPC: H04W52/02
CPC classification number: H04W76/048 , H04B17/336 , H04L5/0005 , H04L5/0007 , H04W52/02 , H04W52/0216 , H04W52/0245 , H04W76/28 , H04W84/042 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/24
Abstract: Methods and apparatus to reduce power consumption in user equipment (UE) that operates in a connected discontinuous reception (C-DRX) mode while in communication with wireless network are disclosed. A C-DRX warm-up period before the UE enters an on-duration is adjusted dynamically based on one or more factors including a time division duplex (TDD) uplink/downlink (UL/DL) subframe configuration, signal-to-noise ratio (SNR) values, and Doppler shift values. The C-DRX warm-up period is adapted based on the pattern of DL subframes in the UL/DL subframe configuration by including DL subframes that best contribute to channel estimation and adaptive tracking loops based on measured SNR and Doppler shift conditions. Favorable channel conditions, such as higher SNR and lower Doppler shift, can require fewer DL subframes and consequently shorter C-DRX warm-up periods. Higher Doppler shift values indicate more rapidly varying channel conditions and require DL subframes positioned closer to the start of the on-duration.
Abstract translation: 公开了在与无线网络通信的情况下，以连接的不连续接收（C-DRX）模式工作的用户设备（UE）中的功耗降低的方法和装置。 基于包括时分双工（TDD）上行链路/下行链路（UL / DL）子帧配置，信噪比的一个或多个因素动态地调整UE进入接通持续时间之前的C-DRX预热时段 （SNR）值和多普勒频移值。 基于UL / DL子帧配置中的DL子帧的模式，基于测量的SNR和多普勒频移条件，包括最有助于信道估计和自适应跟踪环路的DL子帧，来适应C-DRX预热周期。 有利的信道条件，如较高的信噪比和较低的多普勒频移，可能需要更少的DL子帧，从而可以减少C-DRX预热周期。 较高的多普勒频移值表示更快速变化的信道状况，并且要求DL子帧位于接近开启持续时间的开始位置。
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