公开(公告)号：US09408144B2

公开(公告)日：2016-08-02

申请号：US14074204

申请日：2013-11-07

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Vinay R. Majjigi ,  Christian W. Mucke ,  Syed A. Mujtaba

IPC: G08C17/00 ,  H04W52/02 ,  H04L1/18

CPC classification number: H04W52/0216 ,  H04L1/1887 ,  H04W52/0251 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/23 ,  Y02D70/24

Abstract: Apparatus and methods for performing reduced hybrid automatic repeat request (HARQ) operations for a user equipment (UE) during a data communications session, e.g., for voice over LTE (VoLTE) communications. The UE can initially inform the network, via an enhanced NodeB (eNodeB), that the UE is capable of performing advanced HARQ functions. The eNodeB can further evaluate various network conditions to determine when reduced HARQ operations should be employed. When network conditions allow, the eNodeB can transmit an RRC message to the UE, including reduced HARQ timeline configuration information. Thereafter, the UE and the eNodeB can collaborate to institute the reduced HARQ timeline to schedule an application data retransmission during the data communications session. The reduced HARQ operations can be performed in conjunction with various semi-persistent scheduling (SPS) and connected mode discontinuous reception (C-DRX) operations, to further conserve UE device resources.

Abstract translation: 用于在数据通信会话期间（例如，对于LTE（VoLTE）语音通信）的用户设备（UE）进行减少的混合自动重复请求（HARQ）操作的设备和方法。 UE可以最初通过增强型节点B（eNodeB）通知该网络UE能够执行高级HARQ功能。 eNodeB可以进一步评估各种网络条件以确定何时应采用减少的HARQ操作。 当网络条件允许时，eNodeB可以向UE发送RRC消息，包括减少的HARQ时间线配置信息。 此后，UE和eNodeB可以协作来实现减少的HARQ时间线，以在数据通信会话期间调度应用数据重传。 减少的HARQ操作可以结合各种半静态调度（SPS）和连接的模式不连续接收（C-DRX）操作来执行，以进一步节省UE设备资源。

公开(公告)号：US20160219519A1

公开(公告)日：2016-07-28

申请号：US14987805

申请日：2016-01-05

Applicant: Apple Inc.

Inventor： Moustafa M. Elsayed ,  Tarik Tabet ,  Konstantinos Sarrigeorgidis

IPC: H04W52/02 ,  H04W72/04

CPC classification number: H04W52/0225 ,  H04W52/0216 ,  H04W52/0229 ,  H04W52/0274 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/24 ,  Y02D70/26

Abstract: This disclosure relates to implementing an adaptive sleep schedule for PDCCH decoding. In some embodiments, prior to receiving PDCCH signaling, a user equipment device may schedule wireless communication circuitry to prepare for and decode the PDCCH signaling, which may include dynamically preparing a first interrupt for the wireless communication circuitry to perform the preparing for and the decoding. In response to the first interrupt, the UE may prepare for and decode the PDCCH signaling using the wireless communication circuitry. The UE may analyze the result of the decoding, which may include determining that the PDCCH signaling does not comprise information for the UE. In response to determining that the PDCCH signaling does not comprise information for the UE, the UE may schedule the wireless communication circuitry to shut down, which may include dynamically preparing a second interrupt to shut down the wireless communication circuitry.

Abstract translation: 本公开涉及实现用于PDCCH解码的自适应睡眠调度。 在一些实施例中，在接收PDCCH信令之前，用户设备设备可以调度无线通信电路以准备和解码PDCCH信令，其可以包括为无线通信电路动态准备第一个中断以执行准备和解码。 响应于第一中断，UE可以使用无线通信电路准备和解码PDCCH信令。 UE可以分析解码的结果，其可以包括确定PDCCH信令不包括用于UE的信息。 响应于确定PDCCH信令不包括用于UE的信息，UE可以安排无线通信电路关闭，其可以包括动态地准备第二中断以关闭无线通信电路。

公开(公告)号：US20160218900A1

公开(公告)日：2016-07-28

申请号：US14990711

申请日：2016-01-07

Applicant: Apple Inc.

Inventor： Lydi Smaini ,  Konstantinos Sarrigeorgidis ,  Tarik Tabet ,  Syed Aon Mujtaba

IPC: H04L27/12 ,  H04B1/04 ,  H04W72/14 ,  H04W72/04 ,  H04W72/12

CPC classification number: H04B1/04 ,  H04B2001/0491 ,  H04L5/0044 ,  H04L27/2636 ,  H04L27/361 ,  H04L27/362 ,  H04W88/02

Abstract: This disclosure relates to a system and method for generating single-carrier frequency division multiple access (SC-FDMA) transmissions using a high efficiency architecture. According to some embodiments, frequency resources allocated for a transmission may be determined. The allocated frequency resources may have a bandwidth less than a channel bandwidth of a frequency channel of the transmission, and may be centered around a particular frequency. The frequency may be offset from the center frequency of the channel. A baseband signal located around DC corresponding to the channel center frequency may be generated. The baseband signal may be up-converted to an RF signal using a local oscillator tuned to the frequency around which the allocated frequency resources are centered. The RF signal may be transmitted.

Abstract translation: 本公开涉及一种使用高效率架构来生成单载波频分多址（SC-FDMA）传输的系统和方法。 根据一些实施例，可以确定为发送分配的频率资源。 分配的频率资源可以具有小于该传输的频道的信道带宽的带宽，并且可以围绕特定频率居中。 频率可能偏离通道的中心频率。 可以产生位于与通道中心频率对应的DC周围的基带信号。 可以使用调谐到所分配的频率资源所居中的频率的本地振荡器将基带信号上变频为RF信号。 RF信号可以被发送。

公开(公告)号：US20160218758A1

公开(公告)日：2016-07-28

申请号：US14996331

申请日：2016-01-15

Applicant: Apple Inc.

Inventor： Lydi Smaini ,  Tarik Tabet ,  Konstantinos Sarrigeorgidis ,  Syed Aon Mujtaba

IPC: H04B1/10 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04B1/1018 ,  H04L5/005 ,  H04L5/0053

Abstract: Methods and devices are provided for processing a received communication signal by a UE using an analog complex filter and using a single analog-to-digital converter (ADC). A control channel of the communication signal may be decoded to determine the frequency range in which a payload channel is located. The UE may then demodulate only the frequency range containing the payload channel. A complex representation of the received payload channel may be provided to the analog complex filter, with the payload channel shifted to a non-zero frequency IF. The analog complex filter may attenuate any portion of the complex representation that falls near—IF. The UE may then convert only one component path of the filtered complex representation to a digital signal. A complex representation of the digital signal may then be generated, with the payload channel shifted to DC.

Abstract translation: 提供了用于使用模拟复合滤波器和使用单个模数转换器（ADC）来处理UE接收的通信信号的方法和装置。 可以对通信信号的控制信道进行解码，以确定有效载荷信道所在的频率范围。 然后，UE可以仅解调包含有效载荷信道的频率范围。 所接收到的有效载荷信道的复杂表示可以被提供给模拟复合滤波器，其中有效载荷信道被移动到非零频率IF。 模拟复合滤波器可以衰减接近IF的复数表示的任何部分。 然后，UE可以将仅滤波的复数表示的一个分量路径转换为数字信号。 然后可以产生数字信号的复数表示，其中有效载荷信道移动到DC。

公开(公告)号：US20160127990A1

公开(公告)日：2016-05-05

申请号：US14531646

申请日：2014-11-03

Applicant: Apple Inc.

Inventor： Moustafa M. Elsayed ,  Tarik Tabet ,  Konstantinos Sarrigeorgidis

IPC: H04W52/02 ,  H04W72/04

CPC classification number: H04W72/042 ,  H04W52/0209 ,  H04W52/0229 ,  H04W52/52 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/26

Abstract: An apparatus, system, and method for performing PDCCH preparation in RF circuitry are described. In one embodiment, power may be provided to a crystal oscillator to exit a first sleep state. One or more clocking signals may be provided to RF circuitry based on output from the crystal oscillator. Calibration and state restoration of the RF circuitry may be performed independent of baseband circuitry. A plurality of algorithms to prepare for receiving data form a wireless communication network may be performed independent of the baseband circuitry. After initiating the plurality of algorithms, state restoration of the baseband circuitry may be performed. Data may be received from a wireless communication network using the RF circuitry. The data may be processed using the baseband circuitry. State retention for the RF circuitry and the baseband circuitry may be performed. Finally, the crystal oscillator may be powered down to enter a second sleep state.

Abstract translation: 描述了用于在RF电路中执行PDCCH准备的装置，系统和方法。 在一个实施例中，可以向晶体振荡器提供功率以退出第一睡眠状态。 可以基于晶体振荡器的输出向RF电路提供一个或多个时钟信号。 可以独立于基带电路来执行RF电路的校准和状态恢复。 可以独立于基带电路来执行用于准备从无线通信网络接收数据的多种算法。 在启动多个算法之后，可以执行基带电路的状态恢复。 可以使用RF电路从无线通信网络接收数据。 可以使用基带电路来处理数据。 可以执行RF电路和基带电路的状态保持。 最后，晶体振荡器可以掉电进入第二个睡眠状态。

公开(公告)号：US09319985B2

公开(公告)日：2016-04-19

申请号：US14151969

申请日：2014-01-10

Applicant: Apple Inc.

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

IPC: 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：US09277582B2

公开(公告)日：2016-03-01

申请号：US13622594

申请日：2012-09-19

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Syed A. Mujtaba ,  Kee-bong Song

IPC: H04W72/00 ,  H04W76/04 ,  H04W76/02 ,  H04W88/06

CPC classification number: H04W76/045 ,  H04W76/16 ,  H04W76/19 ,  H04W76/25 ,  H04W76/27 ,  H04W88/06

Abstract: Various embodiments are disclosed of a method and apparatus for fast communication recovery in wireless mobile devices arranged to perform dual network radio resource management. In one embodiment, a wireless mobile device includes a transceiver configured to communicate with each of first and second networks. After establishing and maintaining a link with the first network, the wireless mobile device may tune a transceiver to the second network to monitor for traffic, subsequently tuning back to the first network. After turning the transceiver back to the first network, the wireless mobile device may perform one or more attempts to restore the link to the first network. The number of attempts to restore the link is dependent upon an amount of time the transceiver is tuned to the second network.

Abstract translation: 公开了用于执行双网络无线电资源管理的无线移动设备中的快速通信恢复的方法和装置的各种实施例。 在一个实施例中，无线移动设备包括被配置为与第一和第二网络中的每一个通信的收发器。 在建立和维护与第一网络的链路之后，无线移动设备可以将收发器调谐到第二网络以监视流量，随后调回到第一网络。 在将收发器回到第一网络之后，无线移动设备可以执行一个或多个尝试来恢复到第一网络的链路。 恢复链路的尝试次数取决于收发器调整到第二个网络的时间。

公开(公告)号：US20160050658A1

公开(公告)日：2016-02-18

申请号：US14817850

申请日：2015-08-04

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Syed Aon Mujtaba

IPC: H04W72/04 ,  H04W76/04 ,  H04L27/26 ,  H04L5/00 ,  H04L1/18

CPC classification number: H04W72/0413 ,  H04L1/1635 ,  H04L1/1812 ,  H04L1/1819 ,  H04L1/1887 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0055 ,  H04L5/0092 ,  H04L27/2614 ,  H04W76/28

Abstract: In some embodiments, a user equipment (UE) and base station implement improved communication methods which enable a UE that is peak current limited to perform UL transmissions which are consistent with the UL timeline. Embodiments are also presented which enable a UE that is peak current limited to utilize a new form of distributed TTI (transmit time interval) bundling for improved uplink communication performance. In performing “distributed” TTI bundling, the UE may transmit a plurality of redundancy versions of first information to the base station, wherein the plurality of redundancy versions are transmitted in non-consecutive sub-frames with a periodicity of X ms. After the plurality of redundancy versions of first information are transmitted to the base station, the base station may provide a single acknowledge/negative acknowledge (ACK/NACK) to the UE. A method for dynamically generating and using a bundle size for TTI bundling is also disclosed.

Abstract translation: 在一些实施例中，用户设备（UE）和基站实现改进的通信方法，使得能够限制峰值电流的UE执行与UL时间线一致的UL传输。 还给出了使得能够限制峰值电流的UE利用用于改进的上行链路通信性能的新形式的分布式TTI（发送时间间隔）捆绑的实施例。 在执行“分布式”TTI绑定时，UE可以向基站发送第一信息的多个冗余版本，其中多个冗余版本以非周期性为Xms的非连续子帧发送。 在第一信息的多个冗余版本被发送到基站之后，基站可以向UE提供单个确认/否定确认（ACK / NACK）。 还公开了用于动态生成和使用用于TTI绑定的束大小的方法。

公开(公告)号：US20160044589A9

公开(公告)日：2016-02-11

申请号：US14536371

申请日：2014-11-07

Applicant: APPLE INC.

Inventor： Sreevalsan Vallath ,  Deepankar Bhattacharjee ,  Navid Damji ,  Christian W. Mucke ,  Rafael L. Rivera-Barreto ,  Tarik Tabet

IPC: H04W48/18

CPC classification number: H04W48/18 ,  H04L5/001 ,  H04W48/20

Abstract: Systems and methods that enhance radio link performance in a multi-carrier environment. A method may be performed by a UE that includes scanning a plurality of carrier components for a primary cell, determining a first bandwidth of the primary cell, scanning for a secondary cell, determining a second bandwidth of the secondary cell, determining a maximum aggregated bandwidth by combining the first bandwidth and the second bandwidth and when the maximum aggregated bandwidth exceeds a bandwidth capability of the UE, performing a cell selection procedure to select one of the primary cell or the secondary cell based on a higher of the first bandwidth and the second bandwidth.

公开(公告)号：US20150365930A1

公开(公告)日：2015-12-17

申请号：US14726771

申请日：2015-06-01

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Konstantinos Sarrigeorgidis ,  Moustafa M. Elsayed

IPC: H04W72/04 ,  H04B17/336 ,  H04L5/00

CPC classification number: H04W72/0406 ,  H04B17/336 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0091 ,  H04L5/0094

Abstract: An apparatus, system, and method for reliable decoding of control information during LTE wireless transmissions is described. A mobile device may decode the PCFICH blindly, which may include obtaining resource elements (REs) that are reserved for Physical Downlink Control Channel (PDCCH), based on a largest value of a control format indicator (CFI), finding a total number of control channel elements (CCEs) according to the obtained REs, numbering the CCEs, and decoding the PDCCH for the largest value of the CFI over the numbered CCEs. Accordingly, the mobile device does not need to decode the PCFICH specifically. The mobile device may indicate to the NW that the mobile device is a constrained device, and the NW may responsively transmit control information using a reserved control format indication value corresponding to the UE being indicated as a constrained device. The mobile device may then not need to decode the PCFICH, and decode the PDCCH based on the PDCCH occupying a first four OFDM symbols.

Abstract translation: 描述了用于LTE无线传输期间控制信息的可靠解码的装置，系统和方法。 移动设备可以盲目地解码PCFICH，其可以包括基于控制格式指示符（CFI）的最大值获得为物理下行链路控制信道（PDCCH）预留的资源元素（RE），找到总控制数量 信道单元（CCE），对CCE进行编号，并对编号的CCE中的CFI的最大值进行解码。 因此，移动设备不需要专门解码PCFICH。 移动设备可以向NW指示移动设备是受限设备，并且NW可以使用对应于被指示为受约束设备的UE的预留控制格式指示值来响应地发送控制信息。 然后，移动设备可能不需要对PCFICH进行解码，并且基于占用前四个OFDM符号的PDCCH来解码PDCCH。