公开(公告)号：US09577846B2

公开(公告)日：2017-02-21

申请号：US14194496

申请日：2014-02-28

Applicant: Apple Inc.

Inventor： Navid Damji ,  Zhu Ji ,  Johnson O. Sebeni ,  Gaurav Nukala ,  Srinivasan Vasudevan

IPC: H04B17/00 ,  H04W4/06 ,  H04L25/02 ,  H04B17/309

CPC classification number: H04L25/0226 ,  H04B17/309 ,  H04L25/0204 ,  H04W4/06

Abstract: Apparatus and methods for channel estimation in a Multimedia Broadcast Multicast Service (MBMS) Single Frequency Network (MBSFN) are disclosed. A representative method includes a wireless communication device receiving multiple frames, each frame including multiple subframes, each subframe including multiple symbols. The wireless communication device determines whether subframes include MBMS data or not. For subframes that include MBMS data, the wireless communication device excludes all or certain symbols of the subframes that include MBMS data from a channel estimation process. The wireless communication device determines whether the subframes include MBMS data based at least in part on a channel impulse response and/or a channel energy response for one or more symbols of the subframes.

Abstract translation: 公开了多媒体广播组播业务（MBMS）单频网（MBSFN）中信道估计的装置和方法。 代表性的方法包括接收多个帧的无线通信设备，每个帧包括多个子帧，每个子帧包括多个符号。 无线通信设备确定子帧是否包括MBMS数据。 对于包括MBMS数据的子帧，无线通信设备从信道估计处理中排除包括MBMS数据的子帧的全部或某些符号。 所述无线通信设备至少部分地基于所述子帧的一个或多个符号的信道脉冲响应和/或信道能量响应来确定所述子帧是否包括MBMS数据。

公开(公告)号：US20160366641A1

公开(公告)日：2016-12-15

申请号：US15247570

申请日：2016-08-25

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 ,  H04W72/04

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：US09500628B2

公开(公告)日：2016-11-22

申请号：US14484785

申请日：2014-09-12

Applicant: Apple Inc.

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

IPC: H04W4/00 ,  G01N29/36 ,  H04W52/02 ,  H04W4/02 ,  G01N29/04 ,  G01N29/34

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：US09312943B2

公开(公告)日：2016-04-12

申请号：US14249263

申请日：2014-04-09

Applicant: Apple Inc.

Inventor： Syed A. Mujtaba ,  Xiaowen Wang ,  Young Jae Kim ,  Vinay R. Majjigi ,  Johnson O. Sebeni ,  Tahir Shamim ,  Karthik Anantharaman ,  Kee-Bong Song ,  Romain Trilling

IPC: H04B7/08 ,  H04L12/26

CPC classification number: H04B7/082 ,  H04B7/0817 ,  H04B7/0871 ,  H04L43/0823

Abstract: A mobile wireless device adapts receive diversity during discontinuous reception based on downlink signal quality, page indicators and page messages. When the downlink signal quality exceeds a pre-determined threshold, the mobile wireless device decodes a page indicator channel through an initial antenna, and otherwise, decodes a paging channel through the initial antenna without decoding the page indicator channel. The mobile wireless device switches to decoding the paging channel through an alternate antenna when a page indicator decodes as an erasure. When a paging message received through a single antenna decodes with an incorrect error checking code, the mobile wireless devices enables receive diversity through multiple antennas for subsequent decoding. The mobile wireless device switches between single antenna reception and multiple antenna reception based on tracking multiple consecutive error checking code failures and successes.

Abstract translation: 移动无线设备基于下行链路信号质量，页面指示符和寻呼消息来适应不连续接收期间的接收分集。 当下行链路信号质量超过预定阈值时，移动无线设备通过初始天线解码页面指示符信道，否则，通过初始天线对寻呼信道进行解码，而不对页面指示符信道进行解码。 当页面指示符被解码为擦除时，移动无线设备切换到通过替代天线解码寻呼信道。 当通过单个天线接收的寻呼消息用不正确的错误校验码进行解码时，移动无线设备能够通过多个天线进行接收分集以进行后续解码。 基于跟踪多个连续的错误检查代码故障和成功，移动无线设备在单天线接收和多天线接收之间切换。

公开(公告)号：US09295063B2

公开(公告)日：2016-03-22

申请号：US14753388

申请日：2015-06-29

Applicant: Apple Inc.

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

IPC: H04W72/00 ,  H04W72/04 ,  H04B7/04 ,  H04W72/12 ,  H04L5/00

CPC classification number: H04W72/048 ,  H04B7/0413 ,  H04L5/0046 ,  H04L5/0057 ,  H04L5/006 ,  H04L5/0078 ,  H04L5/0091 ,  H04W72/1289

Abstract: Adaptive generation of channel state feedback (CSF) based on base station CSF scheduling. CSF report scheduling information may be received. CSF metrics may be generated based at least in part on the CSF report scheduling information. A CSF report including the CSF metrics may be transmitted to the base station. Periodicity of CSF report scheduling or other CSF report scheduling factors may be taken into consideration in generation of the CSF metrics.

公开(公告)号：US20160073417A1

公开(公告)日：2016-03-10

申请号：US14481457

申请日：2014-09-09

Applicant: Apple Inc.

Inventor： Johnson O. Sebeni ,  Navid Damji

IPC: H04W72/08 ,  H04W72/04 ,  H04W48/16

CPC classification number: H04W48/16 ,  H04L12/00 ,  H04L12/6418 ,  H04W48/18 ,  H04W52/0229 ,  H04W74/006 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/26

Abstract: This disclosure relates to multi-RAT band scanning. According to one embodiment, a wireless user equipment (UE) device may perform a power scan of a frequency band. It may be determined whether or not to attempt system acquisition according to each of multiple possible radio access technologies (RATs) at east of multiple frequencies of the frequency band based on the power scan, and system acquisition may be attempted at selected RAT and frequency combinations. Results of the system acquisition attempts may be provided to a system selection module.

Abstract translation: 本公开涉及多RAT频带扫描。 根据一个实施例，无线用户设备（UE）设备可以执行频带的功率扫描。 可以基于功率扫描来确定是否根据功率扫描在频带的多个频率的东侧的多个可能的无线电接入技术（RAT）中的每一个尝试系统获取，并且可以在选定的RAT和频率组合 。 可以将系统获取尝试的结果提供给系统选择模块。

公开(公告)号：US20160029345A1

公开(公告)日：2016-01-28

申请号：US14807306

申请日：2015-07-23

Applicant: Apple Inc.

Inventor： Johnson O. Sebeni ,  Li Su ,  Jianxiong Shi

IPC: H04W68/02 ,  H04L5/14 ,  H04B1/7115

CPC classification number: H04W68/02 ,  H04B1/7115 ,  H04B2201/70979 ,  H04L5/14 ,  H04W8/183 ,  H04W72/1215 ,  H04W88/06

Abstract: Performing concurrent data communication and voice call monitoring using a single cellular radio. According to some embodiments, the UE may perform data communication, via the radio, using a first RAT, supported by a first SIM. The UE may also perform paging functions for a voice communication, via the radio, using a second RAT, supported by a second SIM. In some scenarios, the first and second RATs are the same. The data communication and the paging functions may be performed concurrently using shared physical layer resources. For example, the shared physical layer resources may comprise a shared software defined radio (SDR) configured to demodulate and/or decode signals of the data communication and the paging function. As another example, the shared physical layer resources may comprise a shared Rake receiver configured to demodulate signals of the data communication and the paging function.

Abstract translation: 使用单个蜂窝无线电进行并发数据通信和语音呼叫监控。 根据一些实施例，UE可以经由无线电使用由第一SIM支持的第一RAT执行数据通信。 UE还可以通过无线电使用由第二SIM支持的第二RAT执行用于语音通信的寻呼功能。 在某些情况下，第一和第二RAT是相同的。 可以使用共享物理层资源同时执行数据通信和寻呼功能。 例如，共享物理层资源可以包括被配置为解调和/或解码数据通信和寻呼功能的信号的共享软件定义无线电（SDR）。 作为另一示例，共享物理层资源可以包括被配置为对数据通信和寻呼功能的信号进行解调的共享Rake接收器。

公开(公告)号：US20160021563A1

公开(公告)日：2016-01-21

申请号：US14870293

申请日：2015-09-30

Applicant: Apple Inc.

Inventor： Samy Khay-Ibbat ,  Navid Damji ,  Sreevalsan Vallath ,  Sarma V. Vangala ,  Johnson O. Sebeni

IPC: H04W28/02

CPC classification number: H04W28/0268 ,  H04W72/1236

Abstract: QoS based uplink data buffering while TTI bundling is enabled by a wireless user equipment (UE) device. The UE may establish a packet-switched connection with a network via a wireless link. The UE may receive, at a media access control (MAC) layer, an indication to enable TTI bundling. The UE may selectively buffer uplink data at an application layer based on the indication to enable TTI bundling. The uplink data may be buffered selectively based on Quality of Service (QoS) considerations. Uplink transmissions may subsequently be performed using TTI bundling.

Abstract translation: 基于QoS的上行链路数据缓冲，而TTI绑定由无线用户设备（UE）设备启用。 UE可以经由无线链路与网络建立分组交换连接。 在媒体接入控制（MAC）层，UE可以接收启用TTI绑定的指示。 基于用于启用TTI绑定的指示，UE可以选择性地缓冲应用层上的上行链路数据。 可以基于服务质量（QoS）考虑来选择性地缓冲上行链路数据。 随后可以使用TTI捆绑来执行上行链路传输。

公开(公告)号：US09237602B2

公开(公告)日：2016-01-12

申请号：US13689568

申请日：2012-11-29

Applicant: Apple Inc.

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

IPC: H04W52/02 ,  H04W88/02 ,  H04W76/04 ,  H04W72/08

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：US20150092893A1

公开(公告)日：2015-04-02

申请号：US14497071

申请日：2014-09-25

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Navid Damji ,  Syed A. Mujtaba ,  Johnson O. Sebeni

IPC: H04L27/26 ,  H04W52/02 ,  H04L5/00

CPC classification number: H04L27/2649 ,  H04L5/0005 ,  H04L5/0053 ,  H04L27/2647 ,  H04W52/0209 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/25

Abstract: Methods and apparatuses to reduce resource consumption by a mobile wireless device when decoding control channel information, such as a physical downlink control channel (PDCCH), in a subframe received from an LTE wireless network are disclosed. Representative methods include demodulating a first set of one or more PDCCH OFDM symbols contained in the subframe based on a first channel estimate; obtaining a second channel estimate based on a second OFDM symbol before demodulating a second set of one or more PDCCH OFDM symbols contained in the subframe based on both the first channel estimate and the second channel estimate. When the PDCCH indicates no downlink assignments for the subframe, the mobile wireless device enters a reduced power consumption mode after demodulating the PDCCH.

Abstract translation: 公开了在从LTE无线网络接收的子帧中解码诸如物理下行链路控制信道（PDCCH）之类的控制信道信息时，减少移动无线设备的资源消耗的方法和设备。 代表性的方法包括基于第一信道估计来解调包含在子帧中的一个或多个PDCCH OFDM符号的第一集合; 基于第一信道估计和第二信道估计，在解调包含在子帧中的第一组一个或多个PDCCH OFDM符号之前，基于第二OFDM符号获得第二信道估计。 当PDCCH不指示子帧的下行链路分配时，移动无线设备在解调PDCCH之后进入降低的功耗模式。