公开(公告)号：US20150173006A1

公开(公告)日：2015-06-18

申请号：US14629412

申请日：2015-02-23

Applicant: Apple Inc.

Inventor： Zhu Ji ,  Johnson O. Sebeni

IPC: H04W48/16 ,  H04K3/00

CPC classification number: H04W48/16 ,  H04K3/20

Abstract: A method for performing a frequency scan in presence of an adjacent jammer signal is provided. The method can include a wireless communication device determining an occurrence of an acquisition (ACQ) failure on a candidate system in a frequency scan candidate list (FSCL) generated based on a first frequency scan; identifying the candidate system as a jammer signal in response to the ACQ failure; suppressing the jammer signal to derive a jammer suppressed signal; and performing a second frequency scan based at least in part on the jammer suppressed signal.

Abstract translation: 提供一种在存在相邻干扰信号的情况下执行频率扫描的方法。 该方法可以包括无线通信设备，其确定在基于第一频率扫描生成的频率扫描候选列表（FSCL）中候选系统上的获取（ACQ）故障的发生; 将候选系统识别为响应于ACQ故障的干扰信号; 抑制干扰信号以导致干扰抑制信号; 以及至少部分地基于所述干扰抑制信号来执行第二频率扫描。

公开(公告)号：US08965365B2

公开(公告)日：2015-02-24

申请号：US13938905

申请日：2013-07-10

Applicant: Apple Inc.

Inventor： Zhu Ji ,  Johnson O. Sebeni

IPC: H04W4/00 ,  H04K3/00 ,  H04W48/16

CPC classification number: H04W48/16 ,  H04K3/20

Abstract: A method for performing a frequency scan in presence of an adjacent jammer signal is provided. The method can include a wireless communication device determining an occurrence of an acquisition (ACQ) failure on a candidate system in a frequency scan candidate list (FSCL) generated based on a first frequency scan; identifying the candidate system as a jammer signal in response to the ACQ failure; suppressing the jammer signal to derive a jammer suppressed signal; and performing a second frequency scan based at least in part on the jammer suppressed signal.

公开(公告)号：US20140185475A1

公开(公告)日：2014-07-03

申请号：US14135671

申请日：2013-12-20

Applicant: Apple Inc.

Inventor： Zhu Ji ,  Johnson O. Sebeni ,  Xiantao Sun ,  Yu-Lin Wang

IPC: H04W24/10 ,  H04W76/04

CPC classification number: H04W36/0088 ,  H04W68/02 ,  H04W76/28

Abstract: Adaptive neighboring cell measurement scaling by a wireless user equipment (UE) device. The UE may operate alternately in active and inactive states in a periodic manner according to DRX cycle timing for each of a plurality of DRX cycles. Paging messages may be checked for while in the active state during each DRX cycle. If a paging message is received, it may be decoded using a joint detection technique. The UE may adaptively determine whether or not to perform neighboring cell measurements during at least a subset of the DRX cycles, and perform neighboring cell measurements according to the adaptive determination. The adaptive determination may be based on one or more of joint detection of paging messages, one or more previous cell measurements, or an amount of motion of the UE.

Abstract translation: 由无线用户设备（UE）设备进行的适应性相邻小区测量缩放。 UE可以根据针对多个DRX周期中的每一个的DRX周期定时以周期方式交替地在活动状态和非活动状态中进行操作。 可以在每个DRX周期期间在处于活动状态期间检查寻呼消息。 如果接收到寻呼消息，则可以使用联合检测技术对其进行解码。 UE可以自适应地确定在DRX周期的至少一个子集期间是否执行相邻小区测量，并且根据自适应确定执行相邻小区测量。 自适应确定可以基于寻呼消息的联合检测，一个或多个先前小区测量或UE的运动量中的一个或多个。

公开(公告)号：US20130309988A1

公开(公告)日：2013-11-21

申请号：US13861988

申请日：2013-04-12

Applicant: Apple Inc.

Inventor： Zhu Ji ,  Navid Damji ,  Johnson O. Sebeni

IPC: H04B1/10

CPC classification number: H04B1/1027 ,  H03G3/3078 ,  H04L5/0091

Abstract: Methods and apparatus for adjusting adaptive control loop behavior based on, for example measured artifacts of the radio environment. In one embodiment, a Long Term Evolution (LTE) user equipment (UE) adjusts one or more Automatic Gain Control (AGC) loops based on a measured Doppler spread of received signals. Specifically, one or more AGC parameters (e.g., set-point, loop gain, etc.) are selected based on a measured Doppler spread. The one or more AGC parameters are configured to optimize both the AGC headroom (e.g., dynamic range) and the signal to quantization plus noise ratio (SQNR) of the receiver under dynamic wireless fading channels for the detected Doppler.

Abstract translation: 基于例如无线电环境的测量伪像来调整自适应控制回路行为的方法和装置。 在一个实施例中，长期演进（LTE）用户设备（UE）基于所接收信号的测量多普勒扩展来调整一个或多个自动增益控制（AGC）环路。 具体地，基于测量的多普勒扩展来选择一个或多个AGC参数（例如，设定点，环路增益等）。 一个或多个AGC参数被配置为在检测到的多普勒的动态无线衰落信道下优化AGC余量（例如，动态范围）和接收机的信号到量化加噪声比（SQNR）。

公开(公告)号：US20130308510A1

公开(公告)日：2013-11-21

申请号：US13689568

申请日：2012-11-29

Applicant: APPLE INC.

Inventor： Zhu Ji ,  Navid Damji ,  Johnson O. Sebeni

IPC: H04W52/02

CPC classification number: G01N29/36 ,  G01N29/04 ,  G01N29/34 ,  H04B7/0632 ,  H04B7/0639 ,  H04W4/027 ,  H04W52/0216 ,  H04W52/0251 ,  H04W72/082 ,  H04W72/12 ,  H04W76/28 ,  H04W88/02 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/168 ,  Y02D70/24

Abstract: Providing adaptive channel state feedback (CSF) reports in discontinuous reception (DRX) scenarios in a power-efficient manner. The described algorithm may be able to make adaptive decisions to carry over the CSF from previous DRX cycles based on a comparison between an offset at which CSF values are stable and an offset at which a CSF report is to be sent to a base station. If the CSF values are not stable by the time the CSF report is to be sent, a CSF report from a prior DRX cycle may be used. Alternatively, if the CSF value are stable by the time the CSF report is to be sent, a determination may be made to either generate a new CSF report or use a prior CSF report. The latter determination may be made based on various criteria, including channel conditions and DRX cycle length.

Abstract translation: 以功率有效的方式在不连续接收（DRX）场景中提供自适应信道状态反馈（CSF）报告。 所描述的算法可能能够基于在CSF值稳定的偏移与要向基站发送CSF报告的偏移之间的比较，进行来自先前DRX周期的CSF的自适应决定。 如果CSF报告发送时CSF值不稳定，则可以使用来自先前的DRX周期的CSF报告。 或者，如果CSF报告发送时CSF值稳定，则可以确定生成新的CSF报告或使用先前的CSF报告。 可以基于包括信道条件和DRX周期长度的各种标准来进行后一种确定。

公开(公告)号：US20130196659A1

公开(公告)日：2013-08-01

申请号：US13754774

申请日：2013-01-30

Applicant: Apple Inc.

Inventor： Navid Damji ,  Zhu Ji ,  Johnson Sebeni ,  Jason Shi ,  Li Su

IPC: H04W52/02

CPC classification number: H04W52/0225 ,  H04B17/309 ,  H04W36/0083 ,  H04W36/0088 ,  H04W52/0229 ,  H04W52/0245 ,  H04W76/28 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/146 ,  Y02D70/24 ,  Y02D70/25

Abstract: Methods and apparatus for adaptively adjusting temporal parameters (e.g., neighbor cell search durations). In one embodiment, neighbor cell search durations during discontinuous reception are based on a physical channel metric indicating signal strength and quality (e.g. Reference Signal Received Power (RSRP), Received Signal Strength Indication (RSSI), Reference Signal Receive Quality (RSRQ), etc.) of a cell. In a second embodiment, neighbor cell search durations are based on a multitude of physical layer metrics from one or more cells. In one variant, the multitude of physical layer metrics may include signal strength and quality metrics from the serving base station as well as signal strength and quality indicators from neighbor cells derived from the cells respective synchronization sequences.

Abstract translation: 用于自适应地调整时间参数（例如，相邻小区搜索持续时间）的方法和装置。 在一个实施例中，不连续接收期间的相邻小区搜索持续时间是基于指示信号强度和质量的物理信道度量（例如参考信号接收功率（RSRP），接收信号强度指示（RSSI），参考信号接收质量（RSRQ）等） 。）细胞。 在第二实施例中，相邻小区搜索持续时间基于来自一个或多个小区的多个物理层度量。 在一个变型中，多个物理层度量可以包括来自服务基站的信号强度和质量度量以及来自从小区相应的同步序列导出的相邻小区的信号强度和质量指示符。

公开(公告)号：US20130182587A1

公开(公告)日：2013-07-18

申请号：US13631650

申请日：2012-09-28

Applicant: Apple Inc.

Inventor： Johnson Sebeni ,  Jason Shi ,  Zhu Ji ,  Navid Damji ,  Li Su

IPC: H04W52/02 ,  H04W24/00

CPC classification number: H04W52/0235 ,  H04W28/04 ,  H04W52/0229 ,  H04W72/042 ,  H04W76/28 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/24 ,  Y02D70/25

Abstract: Methods and apparatus for adaptively adjusting receiver operation during non-continuous (e.g., discontinuous) reception. In one exemplary embodiment, a user device such as a User Equipment (UE) adaptively adjusts its reception mode based on a determined actual error. The reception mode is selected so as to improve reception performance, while still minimizing overall power consumption.

Abstract translation: 用于在非连续（例如不连续）接收期间自适应地调整接收机操作的方法和装置。 在一个示例性实施例中，诸如用户设备（UE）的用户设备基于确定的实际错误自适应地调整其接收模式。 选择接收模式以便提高接收性能，同时仍然最小化总体功耗。

公开(公告)号：US12143987B2

公开(公告)日：2024-11-12

申请号：US17440886

申请日：2020-10-23

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Huaning Niu ,  Oghenekome Oteri ,  Sarma V. Vangala ,  Sigen Ye ,  Wei Zeng ,  Weidong Yang ,  Yushu Zhang ,  Zhu Ji

IPC: H04W72/1273 ,  H04L1/00 ,  H04L1/1812 ,  H04W72/1268 ,  H04W72/20

Abstract: Systems, methods, and circuitries are provided for supporting blind retransmission. In one example, a method includes processing control information that indicates resources for communication of a physical downlink shared channel or a physical uplink shared channel (PDSCH/PUSCH) transmission and timing information for a retransmission of the PDSCH/PUSCH. The method includes configuring operation to: receive the PDSCH/PUSCH transmission based on the resources; and determine that a subsequent PDSCH/PUSCH received at a subsequent time corresponds to the retransmission of the PDSCH/PUSCH when the subsequent time coincides with the indicated timing information for the retransmission and, in response combine the PDSCH/PUSCH with the retransmission in a HARQ buffer for decoding purposes.

公开(公告)号：US12082110B2

公开(公告)日：2024-09-03

申请号：US18083968

申请日：2022-12-19

Applicant: Apple Inc.

Inventor： Yuchul Kim ,  Wei Zhang ,  Sami M. Almalfouh ,  Junsung Lim ,  Haitong Sun ,  Wei Zeng ,  Dawei Zhang ,  Zhu Ji ,  Yang Li ,  Johnson O. Sebeni

IPC: H04W52/02 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04W52/0216 ,  H04W72/0446 ,  H04W72/23

Abstract: Apparatuses, systems, and methods for a wireless device to perform a method including a user equipment device (UE) exchanging communications with a base station to determine one or more scheduling profiles, such as one or more scheduling-power profiles, where a scheduling-power profile may specify one or more parameters associated with UE communication behavior, e.g., one or more constraints on UE communication behavior and/or slot scheduling of UE communications. In addition, the method may include the UE receiving a slot configuration schedule from the base station. The slot configuration schedule may be based on at least one scheduling-power profile of the one or more scheduling-power profiles. Further, the method may include the UE performing communications with the base station based on the at least one scheduling-power profile.

公开(公告)号：US12075372B2

公开(公告)日：2024-08-27

申请号：US17384617

申请日：2021-07-23

Applicant: Apple Inc.

Inventor： Zhu Ji ,  Jianxiong Shi ,  Miao Yao

IPC: H04W56/00 ,  H04J13/00 ,  H04L27/26

CPC classification number: H04W56/001 ,  H04J13/0062 ,  H04L27/2607 ,  H04L27/2634

Abstract: In an example method, a first device determines a first Zadoff-Chu sequence having a first root value, and a second Zadoff-Chu sequence having a second root value, where the second root value is an inverse modulus of the first root value. Further, the first device generates a wireless signal including (i) a first preamble generated based, at least in part, on the first Zadoff-Chu sequence, (ii) a second preamble generated based, at least in part, on the second Zadoff-Chu sequence, and (iii) a payload. Further, the first device transmits the wireless signal from the first device to a second device.