公开(公告)号：US20160081023A1

公开(公告)日：2016-03-17

申请号：US14950608

申请日：2015-11-24

Applicant: Apple Inc.

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

IPC: H04W52/02 ,  H04B7/06 ,  H04W72/12 ,  H04W76/04

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.

公开(公告)号：US09271260B2

公开(公告)日：2016-02-23

申请号：US14061991

申请日：2013-10-24

Applicant: Apple Inc.

Inventor： Wael S. Barakat ,  Chandra S. Chetty ,  Johnson O. Sebeni ,  Raghuveer Mallikarjunan ,  Swaminathan Balakrishnan ,  Tahir Shamim

IPC: H04W68/00 ,  H04W68/02

CPC classification number: H04W68/02

Abstract: Enabling receive diversity based on detecting incorrect paging message length. A paging channel may be monitored. An indication of a paging message may be received on the paging channel. The paging message may include a message length field indicating a message length of the paging message. The message length field of the paging message may be received on the paging channel and decoded. It may be determined that the message length indicated in the message length field is incorrect. Receive diversity may be enabled for at least one subsequent paging occasion in response to determining that the message length indicated in the message length field is incorrect.

Abstract translation: 基于检测到不正确的寻呼消息长度，实现接收分集。 可以监视寻呼信道。 可以在寻呼信道上接收寻呼消息的指示。 寻呼消息可以包括指示寻呼消息的消息长度的消息长度字段。 可以在寻呼信道上接收寻呼消息的消息长度字段并进行解码。 可以确定消息长度字段中指示的消息长度不正确。 响应于确定消息长度字段中指示的消息长度不正确，可以为至少一个后续寻呼时机启用接收分集。

公开(公告)号：US20150334656A1

公开(公告)日：2015-11-19

申请号：US14279160

申请日：2014-05-15

Applicant: Apple Inc.

Inventor： Zhu Ji ,  Johnson O. Sebeni ,  Tahir Shamim

IPC: H04W52/02 ,  H04W24/08 ,  H04L5/14

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。

公开(公告)号：US20150334584A1

公开(公告)日：2015-11-19

申请号：US14279412

申请日：2014-05-16

Applicant: Apple Inc.

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

IPC: H04W24/08

CPC classification number: H04W24/02

Abstract: Performing measurement of a first RAT while connected to a second RAT. The UE may initially communicate with a base station of the second RAT. While maintaining a connection to the base station of the first RAT, the UE may perform base station measurement of the first RAT (e.g., using a single radio of the UE). However, the measurement of the first RAT may be influenced by various factors, such as signal quality metrics of the second RAT. For example, if signal quality metrics are high for the second RAT, measurement of the first RAT may not be desirable, e.g., for battery life reasons.

Abstract translation: 在连接到第二RAT时执行第一RAT的测量。 UE可以初始地与第二RAT的基站进行通信。 在保持与第一RAT的基站的连接的同时，UE可以执行第一RAT的基站测量（例如，使用UE的单个无线电）。 然而，第一RAT的测量可能受各种因素的影响，例如第二RAT的信号质量度量。 例如，如果第二RAT的信号质量度量高，则可能不期望第一RAT的测量，例如，由于电池寿命的原因。

公开(公告)号：US09084183B2

公开(公告)日：2015-07-14

申请号：US14629412

申请日：2015-02-23

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.

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：US20150098342A1

公开(公告)日：2015-04-09

申请号：US14568631

申请日：2014-12-12

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Navid Damji ,  Kee-bong Song ,  Syed Aon Mujtaba ,  Youngjae Kim ,  Johnson O. Sebeni ,  Yuchul Kim

IPC: H04W24/10 ,  H04W72/08 ,  H04L12/26 ,  H04W76/02

CPC classification number: H04W24/10 ,  H04L1/0003 ,  H04L1/0026 ,  H04L43/0823 ,  H04L47/10 ,  H04W72/085 ,  H04W72/1231 ,  H04W72/1284

Abstract: Manipulating modulation and coding scheme (MCS) allocation after a communication interruption. A UE device may resume communications with a BS after a communication interruption. Channel quality information may be generated and transmitted to the BS. The channel quality information may be based on channel quality measurements, and may also be based on an offset configured manipulate an MCS allocation by the BS based on determining that the interruption to communication between the UE and the BS has occurred.

Abstract translation: 在通信中断后操纵调制和编码方案（MCS）分配。 在通信中断之后，UE设备可以恢复与BS的通信。 可以生成信道质量信息并将其发送到BS。 信道质量信息可以基于信道质量测量，并且还可以基于配置来基于BS来基于确定UE和BS之间的通信的中断已经发生而由BS操纵MCS分配的偏移。

公开(公告)号：US08879475B2

公开(公告)日：2014-11-04

申请号：US13623911

申请日：2012-09-21

Applicant: Apple Inc.

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

IPC: H04W4/00 ,  H04W88/02

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 channel conditions, DRX cycle length, and/or the requirements of CSF reporting for current DRX cycle. The proposed approach can allow for more efficient power consumption related to CSF reports in DRX scenarios where new CSF reports have little or no impact to throughput.

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信道条件，DRX周期长度和/或针对当前DRX周期的CSF报告的要求，进行自适应决定以从先前的DRX周期传送CSF。 所提出的方法可以允许在DRX情景中与CSF报告相关的更有效的功率消耗，其中新的CSF报告对吞吐量几乎没有或没有影响。

公开(公告)号：US20140219151A1

公开(公告)日：2014-08-07

申请号：US14173478

申请日：2014-02-05

Applicant: Apple Inc.

Inventor： Navid Damji ,  Giri Prassad Deivasigamani ,  Johnson O. Sebeni ,  Luciano M. Verger ,  Madhusudan Chaudhary ,  Samy Khay-Ibbat ,  Sarma V. Vangala ,  Shivesh Makharia ,  Sree Ram Kodali ,  Srinivasan Vasudevan ,  Thanigaivelu Elangovan ,  Zhu Ji

IPC: H04W52/02

CPC classification number: H04W52/0235 ,  H04W52/0216 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/23 ,  Y02D70/24

Abstract: A method for reducing power consumption in connected mode discontinuous reception is disclosed. The method can include a wireless communication device sending a transmission for a pending HARQ retransmission process and receiving an ACK for the transmission. The method can further include the wireless communication device determining a subset of remaining uplink transmission opportunities in the pending HARQ retransmission process to monitor for an uplink grant in response to receiving the ACK and monitoring the subset of remaining uplink transmission opportunities for an uplink grant. The method can additionally include the wireless communication device entering a sleep state for any uplink transmission opportunities remaining in the pending HARQ retransmission process after monitoring the subset of remaining uplink transmission opportunities in an instance in which an uplink grant for the pending HARQ retransmission process is not received for any of the subset of remaining uplink transmission opportunities.

Abstract translation: 公开了一种用于降低连接模式不连续接收中的功耗的方法。 该方法可以包括无线通信设备发送用于待决HARQ重传过程的传输并且接收用于传输的ACK。 该方法还可以包括无线通信设备确定待决HARQ重传过程中的剩余上行链路传输机会的子集，以响应于接收到该ACK并监视用于上行链路授权的剩余上行链路传输机会的子集来监视上行链路许可。 该方法可以另外包括无线通信设备进入睡眠状态，用于在等待的HARQ重传过程中保持的任何上行链路传输机会之后监视剩余上行链路传输机会的子集，其中用于未决HARQ重传过程的上行链路许可不在 接收到剩余上行链路传输机会的任何子集。

公开(公告)号：US20140198699A1

公开(公告)日：2014-07-17

申请号：US14153675

申请日：2014-01-13

Applicant: Apple Inc.

Inventor： Shivesh Makharia ,  Sree Ram Kodali ,  Navid Damji ,  Thanigaivelu Elangovan ,  Luciano Verger ,  Madhusudan Chaudhary ,  Johnson O. Sebeni ,  Srinivasan Vasudevan ,  Samy Khay-Ibbat ,  Longda Xing ,  Jianxiong Shi

IPC: H04W52/02 ,  H04W76/04

CPC classification number: H04W52/028 ,  H04W52/0216 ,  H04W52/0229 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/12 ,  H04W72/1289 ,  H04W76/28 ,  H04W88/02 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/23 ,  Y02D70/24

Abstract: A connection with a network that includes a base station (BS) may be established by a user device (UE) via a wireless connection, for conducting communications using semi persistent scheduling (SPS) in a connected discontinuous reception (C-DRX) mode. The SPS transmit periodicity may be adjusted with respect to the SPS activation command and the SPS interval UL (for uplink). Data may then be transmitted during the C-DRX On-Duration periods according to the determined SPS transmit periodicity. In some embodiments, the SPS transmit periodicity is adjusted such that following a first C-DRX On-Duration period when an SPS activation command is received, SPS data transmission occurs a specified number of subframes earlier during each subsequent C-DRX On-Duration period than in the first C-DRX On-Duration period. The SPS data transmission in each subsequent C-DRX On-Duration period may take place as soon as the UE device wakes up during the On-Duration period.

Abstract translation: 与包括基站（BS）的网络的连接可以由用户设备（UE）经由无线连接建立，用于使用在连续的不连续接收（C-DRX）模式中的半永久调度（SPS）进行通信。 可以相对于SPS激活命令和SPS间隔UL（对于上行链路）来调整SPS发送周期。 然后可以根据所确定的SPS发送周期在C-DRX持续时间周期期间发送数据。 在一些实施例中，调整SPS发送周期，使得在接收到SPS激活命令之后的第一C-DRX持续时间周期之后，SPS数据传输在每个随后的C-DRX持续时间段期间发生特定数量的子帧 比在第一个C-DRX持续时间段。 一旦UE设备在持续时间期间唤醒，可以在每个随后的C-DRX持续时间段中的SPS数据传输发生。

公开(公告)号：US20140018070A1

公开(公告)日：2014-01-16

申请号：US13938905

申请日：2013-07-10

Applicant: Apple Inc.

Inventor： Zhu Ji ,  Johnson O. Sebeni

IPC: 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.

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。