公开(公告)号：US09860848B2

公开(公告)日：2018-01-02

申请号：US15169280

申请日：2016-05-31

Applicant: Apple Inc.

Inventor： Sunny Arora ,  Rati Agrawal ,  Sami M. Almalfouh ,  Xiantao Sun ,  Johnson O. Sebeni ,  Wael S. Barakat ,  Navid Damji ,  Srinivas Pasupuleti ,  Raghuveer Mallikarjunan

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

CPC classification number: H04W52/028 ,  H04W52/0251 ,  H04W72/042 ,  H04W88/02 ,  Y02D70/20

Abstract: This disclosure relates to techniques for estimating baseband power consumption and using the baseband power consumption estimation to select baseband operation features. According to some embodiments, one or more baseband power consumption modifiers occurring during an estimation window may be identified. Baseband power consumption of the wireless device during the estimation window may be estimated based on the identified baseband power consumption modifiers occurring during the estimation window. Baseband data throughput of the wireless device during the estimation window may also be estimated. One or more baseband operation characteristics may be selected based at least in part on the estimated baseband power consumption during the estimation window, possibly in conjunction with the estimated baseband data throughput during the estimation window, current wireless medium conditions, and/or other considerations.

公开(公告)号：US09848347B2

公开(公告)日：2017-12-19

申请号：US14496950

申请日：2014-09-25

Applicant: APPLE INC.

Inventor： Tarik Tabet ,  Navid Damji ,  Syed Aon Mujtaba ,  Johnson Sebeni

IPC: H04W24/08 ,  H04L5/00 ,  H04W52/02 ,  H04L27/26 ,  H04L25/02 ,  H04B7/06

CPC classification number: H04W24/08 ,  H04B7/0684 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0082 ,  H04L25/022 ,  H04L25/0228 ,  H04L27/2613 ,  H04L27/2655 ,  H04W52/0229 ,  Y02D70/1262 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/444

Abstract: A station configured to perform a method for determining a wireless property such as a channel estimate, a channel estimation track, a time tracking loop, and a frequency tracking loop. The method includes determining a set of consecutive subframes in which no transmission is scheduled, placing a processor into a first power mode during at least a portion of the set of consecutive subframes, placing the processor into a second power mode during at least another portion of the set of consecutive subframes, receiving a first reference symbol when the processor is in the second power mode and calculating a wireless property based on the first reference symbol.

公开(公告)号：US09820228B2

公开(公告)日：2017-11-14

申请号：US14853404

申请日：2015-09-14

Applicant: APPLE INC.

Inventor： Harshit Chuttani ,  Sai Sravan Bharadwaj Karri ,  Someet Lal ,  Navid Damji

IPC: H04W4/00 ,  H04W52/02 ,  H04W76/02 ,  H04L5/00

CPC classification number: H04W52/0225 ,  H04L5/001 ,  H04L5/0057 ,  H04W76/15 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/24 ,  Y02D70/26

Abstract: An apparatus, system, and method optimize a manner in which carrier aggregation (CA) is used. The apparatus comprises a transceiver and processor. The transceiver is used to establish a connection with a network including first and second network components used for a CA functionality. The processor implicitly deactivates the SCell while the CA functionality is enabled by the network by determining that the CA functionality is enabled by the network, determining that the SCell is one of out-of-service (OoS) and effectively OoS when the second network component is reachable by the apparatus and a connection parameter with the second network component is below a predetermined threshold, transmitting a channel quality indicator (CQI) value of zero for the SCell to the first network component to implicitly deactivate the SCell, and utilizing a low power consumption state where monitoring of the SCell is terminated.

公开(公告)号：US09794024B2

公开(公告)日：2017-10-17

申请号：US14075816

申请日：2013-11-08

Applicant: Apple Inc.

Inventor： Zhu Ji ,  Navid Damji ,  Johnson Sebeni

IPC: H04L1/00 ,  H04W24/10 ,  H04L25/02 ,  H04B7/06

CPC classification number: H04L1/0023 ,  H04B7/065 ,  H04L1/0026 ,  H04L25/0204 ,  H04L25/0222 ,  H04L25/0224 ,  H04W24/10

Abstract: Aspects of the present invention provide apparatuses and methods for adaptive channel state feedback (CSF) estimation techniques. Downlink transmissions can be received at a mobile device. The downlink transmissions can be received after the mobile device has entered a power saving mode of operation. The downlink transmission received can be a discontinuous downlink subframe and can include one or more pilot symbols. A channel variation factor of the transmission channel can be determined based on the received downlink transmission. Based on the amount of variation of the transmission channel, either an earlier-received or a later-received pilot symbol can be used for CSF estimation. Further, either higher or lower weighted filter coefficients can be selected for use in CSF estimation based on the amount of variation of the transmission channel.

公开(公告)号：US09596638B2

公开(公告)日：2017-03-14

申请号：US14871493

申请日：2015-09-30

Applicant: APPLE INC.

Inventor： Navid Damji ,  Shivesh Makharia ,  Luciano M. Verger ,  Samy Khay-Ibbat ,  Johnson O. Sebeni ,  Sree Ram Kodali ,  Sreevalsan Vallath

IPC: H04B17/00 ,  H04W36/30 ,  H04L1/00 ,  H04W28/22 ,  H04L1/18 ,  H04W36/00 ,  H04W36/14 ,  H04W88/06 ,  H04W72/12

CPC classification number: H04W36/30 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/0036 ,  H04L1/1812 ,  H04L1/203 ,  H04W28/22 ,  H04W36/0022 ,  H04W36/14 ,  H04W72/1284 ,  H04W88/06

Abstract: Apparatus, system and methods for evaluating link quality within a cellular system. A user equipment (“UE”) is connected to a network, wherein the UE communicates data to the network on an uplink (“UL”) link. The UE determines a requested buffer size for a UL communication, determines a transport block size for the UL communication based on a primary set of allocation parameters, and compares the requested buffer size to the transport block size to determine if a data rate for the UL communication satisfies a threshold. When the data rate satisfies the threshold, the UE identifies the UL link as a good quality link and sends acceptable link quality feedback to the network. When the data rate does not satisfy the threshold, the UE performs a further action to test a quality of the UL link.

Abstract translation: 用于评估蜂窝系统内的链路质量的装置，系统和方法。 用户设备（“UE”）连接到网络，其中UE在上行链路（“UL”）链路上向网络传送数据。 UE确定用于UL通信的所请求的缓冲器大小，基于一组分配参数确定用于UL通信的传输块大小，并将所请求的缓冲器大小与传输块大小进行比较，以确定UL的数据速率 通信满足阈值。 当数据速率满足阈值时，UE将UL链路识别为良好的质量链路，并向网络发送可接受的链路质量反馈。 当数据速率不满足阈值时，UE执行进一步的动作来测试UL链路的质量。

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：US09549359B2

公开(公告)日：2017-01-17

申请号：US15071112

申请日：2016-03-15

Applicant: Apple Inc.

Inventor： Sarma V. Vangala ,  Swaminathan Balakrishnan ,  Wael S. Barakat ,  Navid Damji ,  Tarik Tabet

IPC: H04W36/32 ,  H04W52/02 ,  H04W36/00 ,  H04W24/10 ,  H04W76/02 ,  H04W88/06

CPC classification number: H04W36/32 ,  H04W24/10 ,  H04W36/0061 ,  H04W36/0083 ,  H04W36/0088 ,  H04W52/0225 ,  H04W52/0254 ,  H04W76/15 ,  H04W88/06 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264

Abstract: A method for reducing power consumption by a wireless communication device is disclosed. The method can include the wireless communication device performing a first measurement of an alternative cell during a first measurement gap; sending a first measurement report generated based on the first measurement to the serving cell; storing the first measurement report; determining a mobility state of the wireless communication device; comparing the mobility state to a mobility threshold criterion; resending the first measurement report to the serving network as a report for a second measurement gap in an instance in which the mobility state satisfies the mobility criterion; and performing a second measurement of the alternative cell during the second measurement gap and sending a second measurement report generated based on the second measurement to the serving cell in an instance in which the mobility state does not satisfy the mobility threshold criterion.

Abstract translation: 公开了一种降低无线通信设备的功耗的方法。 该方法可以包括在第一测量间隙期间执行替代单元的第一测量的无线通信设备; 向所述服务小区发送基于所述第一测量生成的第一测量报告; 存储第一测量报告; 确定所述无线通信设备的移动性状态; 将移动性状态与移动性阈值标准进行比较; 在移动性状态满足移动性准则的情况下，将第一测量报告重新发送到服务网络作为用于第二测量间隙的报告; 以及在所述第二测量间隙期间执行所述备选小区的第二测量，并且在所述移动性状态不满足所述移动性阈值准则的情况下，将基于所述第二测量生成的第二测量报告发送给所述服务小区。

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：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.