公开(公告)号：US20170359200A1

公开(公告)日：2017-12-14

申请号：US15179647

申请日：2016-06-10

Applicant: Apple Inc.

Inventor： Sami M. ALMALFOUH ,  Navid DAMJI ,  Johnson O. SEBENI ,  Tarik TABET

IPC: H04L25/02 ,  H04W72/14 ,  H04W74/08 ,  H04B7/08 ,  H04W24/08 ,  H04W76/04

CPC classification number: H04L25/0204 ,  H04B7/08 ,  H04W24/08 ,  H04W76/16 ,  H04W76/28

Abstract: A wireless device comprises a primary antenna, a primary transceiver, one or more secondary antennas and one or more receive diversity chains. The receive diversity chains, in some embodiments, include transceiver capability. The wireless device measures and collects various statistics. Based on the statistics, the wireless device enables or disables one or more of the receive diversity chains with respect to a cellular radio access technology (RAT). A disabled receive diversity chain, in some instances is then powered down. During an interval when a receive diversity chain is disabled, the control logic periodically or on an event-driven basis enables a given receive diversity chain to probe channel quality indicator (CQI) and channel rank values. In some embodiments, a time interval for collecting a portion of the statistics, is adapted or backed off in anticipation of use of the receive diversity chain, based on traffic circumstances.

公开(公告)号：US20170295580A1

公开(公告)日：2017-10-12

申请号：US15128264

申请日：2016-01-08

Applicant: APPLE INC.

Inventor： Zhu JI ,  Yanxia WANG ,  Bing ZHAO ,  Johnson O. SEBENI

IPC: H04W72/08 ,  H04W72/04 ,  H04L1/00

Abstract: Described herein are apparatuses, systems and methods for adaptive downlink scheduling and link adaptation. The methods including, at a base station connected to a user equipment (“UE”), determining an initial modulation and coding scheme (“MCS”) for a plurality of subframes to be transmitted to the UE, wherein each MCS relates to a coding rate value for the subframes, determining an MCS pattern for the plurality of subframes based on the initial MCS, wherein an MCS for one of the subframes has a higher coding rate value than the initial MCS, and transmitting the plurality of subframes to the UE according to the MCS pattern.

公开(公告)号：US20140241177A1

公开(公告)日：2014-08-28

申请号：US13776399

申请日：2013-02-25

Applicant: APPLE INC.

Inventor： Yu-lin WANG ,  Johnson O. SEBENI

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04L1/0003 ,  H04L1/0009

Abstract: A system and method to select a modulation coding scheme of a mobile device including establishing a connection between the mobile device and a remote device through a wireless communication network, monitoring at least two measured properties of a radio frequency access link between the mobile device and the wireless communication network, selecting an updated derived C value based on the measured properties of the radio frequency access link, and inducing a change in a modulation coding scheme based on the updated derived C value.

Abstract translation: 一种用于选择移动设备的调制编码方案的系统和方法，包括通过无线通信网络建立移动设备与远程设备之间的连接，监视移动设备与移动设备之间的射频接入链路的至少两个测量属性 无线通信网络，基于所测量的射频接入链路的属性来选择更新的导出的C值，以及基于更新的导出的C值来诱导调制编码方案的改变。

公开(公告)号：US20180351661A1

公开(公告)日：2018-12-06

申请号：US15715058

申请日：2017-09-25

Applicant: Apple Inc.

Inventor： Elliot S. BRIGGS ,  Zhu JI ,  Johnson O. SEBENI

IPC: H04B17/10 ,  H04W4/02 ,  G01S5/02

CPC classification number: H04B17/104 ,  G01S5/0284 ,  H04B17/18 ,  H04W4/02 ,  H04W4/90

Abstract: A user of a device desires that geographic position information of the device be kept private. A network may track a geographic position of a device using timing advance (TA) data and also a passive attacker may attempt to track the geographic position of the device by observing base station TA commands. In embodiments provided herein, a device diminishes or obfuscates geographic position information by using a timing change value while not disturbing synchronization of uplink signals from multiple devices arriving at a base station. To resist an averaging solution by an observer, the device in some embodiments adjusts the timing change value based on an internal timer. In an emergency call situation, the method permits the base station to obtain geographic position information based on TA procedures.

公开(公告)号：US20180139028A1

公开(公告)日：2018-05-17

申请号：US15812291

申请日：2017-11-14

Applicant: APPLE INC.

Inventor： Junsung LIM ,  Zhu JI ,  Jia TANG ,  Johnson O. SEBENI

IPC: H04L5/00 ,  H04L1/18

CPC classification number: H04L5/0055 ,  H04L1/1816 ,  H04L1/1819 ,  H04L1/1829 ,  H04L1/1887 ,  H04L5/0053 ,  H04W72/042

Abstract: A method performed by a user equipment that includes receiving a redundancy version (RV) of control information during a transmission time interval (TTI) from a network to which the user equipment has established a connection, wherein the control information comprises a plurality of RVs, determining a first value corresponding to the TTI, determining a second value based on a connectivity parameter measurement of the connection and determining whether to perform a decode operation on the RV based on a comparison of the first value and the second value.

公开(公告)号：US20170359779A1

公开(公告)日：2017-12-14

申请号：US15178897

申请日：2016-06-10

Applicant: APPLE INC.

Inventor： Beibei WANG ,  Zhu JI ,  Johnson O. SEBENI

IPC: H04W52/02 ,  H04W40/00 ,  H04J11/00 ,  H04L12/26 ,  H04W72/14 ,  H04W76/04 ,  H04L1/18 ,  H04W72/04 ,  H04W88/08 ,  H04W88/02

CPC classification number: H04W52/0209 ,  H04L1/1812 ,  H04L5/0053 ,  H04W74/0833 ,  H04W76/28 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/126 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/20 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/26

Abstract: A method and device for scheduling SR transmissions for a user equipment (UE) associated with an evolved Node B (eNB) of a Long Term Evolution (LTE) network. The method includes determining an SR is to be transmitted to the LTE network, determining an uplink grant behavior of the eNB, when the uplink grant behavior of the eNB indicates that previous uplink grants satisfy a threshold of previous grants occurring in onDurations of the cycle of a C-DRX functionality, selecting one of the at least one SR opportunity that follows a next onDuration relative to when the indication is received and scheduling the SR in the one of the at least one SR opportunity that follows the next onDuration. The method further including determining an uplink grant turnaround time associated with the eNB, and selecting one of the at least one SR opportunity based on the uplink grant turnaround time.

公开(公告)号：US20220394605A1

公开(公告)日：2022-12-08

申请号：US17755703

申请日：2019-11-28

Applicant: Apple Inc.

Inventor： Beibei WANG ,  Pengkai ZHAO ,  Zhu JI ,  Fangli XU ,  Haijng HU ,  Yuqin CHEN ,  Lele CUI ,  Ruirui ZONG ,  Haitong SUN ,  Wei ZENG ,  Jia TANG ,  Tianyan PU ,  Johnson O. SEBENI ,  Dawei ZHANG ,  Thanigaivelu ELANGOVAN ,  Hailong YANG ,  Xueting LIU

IPC: H04W48/18 ,  H04W76/27 ,  H04W76/15 ,  H04W8/18

Abstract: A device, system and method for a user equipment (UE) to report a network resource and capability state to a network for coordinating network resource allocations. The UE is configured to establish a first connection to a first network based on a first subscriber identity module (SIM) of the UE and further configured to establish a second connection to a second network based on a second SIM of the UE. The method includes determining an upcoming first change of a state of the UE with respect to the first connection and transmitting, to the first network, an indication of the first change of state of the UE. The method further includes changing the state of the UE with respect to the first connection.

公开(公告)号：US20160134457A1

公开(公告)日：2016-05-12

申请号：US14996007

申请日：2016-01-14

Applicant: Apple Inc.

Inventor： Zhu JI ,  Johnson O. SEBENI ,  Yu-Lin WANG

IPC: H04L27/26 ,  H04L25/02

CPC classification number: H04L27/2659 ,  H04L25/0212 ,  H04L27/266 ,  H04L27/2682 ,  H04L27/2688 ,  H04L2027/0053

Abstract: Methods and apparatuses to determine a frequency adjustment in a mobile wireless device are disclosed. A method includes determining a coarse frequency error estimate and multiple fine frequency error estimates; selecting at least one candidate fine frequency error estimate having a frequency value closest to a corresponding frequency value for the coarse frequency error estimate; and determining a frequency adjustment based on a combination of the coarse frequency error estimate and the selected at least one candidate fine frequency error estimate. In an embodiment, the method further includes calculating a confidence metric for the coarse frequency error estimate; when the confidence metric exceeds a threshold value, determining the frequency adjustment based on the candidate fine frequency error estimate; otherwise, determining the frequency adjustment based on a fine frequency error estimate in the plurality of fine frequency error estimates closest to a most recent previous fine frequency error estimate.

Abstract translation: 公开了确定移动无线设备中的频率调整的方法和装置。 一种方法包括：确定粗略频率误差估计和多个精细频率误差估计; 选择具有最接近所述粗略频率误差估计的对应频率值的频率值的至少一个候选精细频率误差估计; 以及基于粗略频率误差估计和所选择的至少一个候选精细频率误差估计的组合来确定频率调整。 在一个实施例中，该方法还包括计算粗略频率误差估计的置信度量; 当所述置信量度超过阈值时，基于所述候选精细频率误差估计来确定频率调整; 否则，基于与最近的先前精细频率误差估计最接近的多个精细频率误差估计中的精细频率误差估计来确定频率调整。

公开(公告)号：US20150350937A1

公开(公告)日：2015-12-03

申请号：US14290471

申请日：2014-05-29

Applicant: APPLE INC.

Inventor： Wanping ZHANG ,  Zhu JI ,  Qiang MIAO ,  Johnson O. SEBENI ,  Joshua ZHANG

IPC: H04W24/08 ,  H04W24/10 ,  H04W76/04

CPC classification number: H04W24/08 ,  H04W24/02 ,  H04W24/10 ,  H04W76/28 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/24

Abstract: A method to be performed by a wireless station having a wireless transceiver configured to establish a connection to a network, a processor and a non-transitory computer readable storage medium. The method includes receiving information during a first reception segment of a discontinuous reception cycle, wherein the discontinuous reception cycle includes the first reception segment and a first idle segment, performing a first measurement that begins during the first reception segment and performing a second measurement, wherein the second measurement begins prior to an end of the first measurement.

Abstract translation: 一种由具有无线收发器的无线站执行的方法，所述无线收发器配置成建立到网络，处理器和非暂时计算机可读存储介质的连接。 该方法包括在不连续接收周期的第一接收段期间接收信息，其中不连续接收周期包括第一接收段和第一空闲段，执行在第一接收段期间开始并执行第二测量的第一测量，其中 第二次测量在第一次测量结束之前开始。

公开(公告)号：US20140148170A1

公开(公告)日：2014-05-29

申请号：US14088271

申请日：2013-11-22

Applicant: Apple Inc.

Inventor： Navid DAMJI ,  Sree Ram KODALI ,  Johnson O. SEBENI ,  Zhu JI

IPC: H04W36/14

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。