公开(公告)号：US20160020983A1

公开(公告)日：2016-01-21

申请号：US14870328

申请日：2015-09-30

Applicant: Apple Inc.

Inventor： Sarma V. Vangala ,  Tarik Tabet ,  Swaminathan Balakrishnan ,  Yuchul Kim ,  Navid Damji ,  Sreevalsan Vallath ,  Samy Khay-Ibbat ,  Syed Aon Mujtaba

IPC: H04L12/26 ,  H04B17/309

CPC classification number: H04L43/0888 ,  H04B17/309 ,  H04L43/10 ,  H04W24/06 ,  H04W24/08

Abstract: Loading estimation of 3GPP networks. One or more metrics relating to a cell of a 3GPP network may be measured. Loading of the cell may be estimated based on the one or more metrics. The metrics may include metrics measured, estimated, or derived at multiple layers, possibly including one or more of physical layer, radio link control layer, radio resource control layer, or application layer metrics.

Abstract translation: 加载3GPP网络的估计。 可以测量与3GPP网络的小区有关的一个或多个度量。 可以基于一个或多个度量来估计小区的加载。 度量可以包括在多层测量，估计或导出的度量，可能包括物理层，无线电链路控制层，无线电资源控制层或应用层度量中的一个或多个。

公开(公告)号：US09241338B2

公开(公告)日：2016-01-19

申请号：US13896202

申请日：2013-05-16

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Kee-Bong Song ,  Syed A. Mujtaba ,  Young Jae Kim ,  Navid Damji

IPC: H04W72/08 ,  H04B17/21 ,  H04L1/00 ,  H04W76/02 ,  H04L27/00 ,  H04L27/26 ,  H04B7/04 ,  H04B17/24

CPC classification number: H04W72/085 ,  H04B7/0417 ,  H04B17/21 ,  H04B17/24 ,  H04L1/0026 ,  H04L1/0027 ,  H04L27/0008 ,  H04L27/2601 ,  H04W76/19

Abstract: Methods, apparatuses and computer readable media are described that adjust signaling messages that include channel quality metrics communicated between a mobile wireless device and a wireless access network before and/or after interruption of a connection to improve downlink performance after resumption of the connection. One or more adjusted channel quality metrics are determined and communicated to the wireless access network to compensate at least in part for an estimate of communication channel performance degradation by a network element of the wireless access network following the interruption and resumption of the connection between the mobile wireless device and the wireless access network.

Abstract translation: 描述了调整信号消息的方法，装置和计算机可读介质，该信令消息包括在连接中断之前和/或之后在移动无线设备与无线接入网之间通信的信道质量度量，以在恢​​复连接之后改善下行链路性能。 确定一个或多个经调整的信道质量度量并将其传送到无线接入网络，以至少部分地补偿在移动台之间的连接中断和恢复之后无线接入网络的网络元件的通信信道性能退化的估计 无线设备和无线接入网络。

公开(公告)号：US20160014697A1

公开(公告)日：2016-01-14

申请号：US14326771

申请日：2014-07-09

Applicant: Apple Inc.

Inventor： Syed Aon Mujtaba ,  Moustafa M. Elsayed ,  Tarik Tabet

IPC: H04W52/02 ,  H04L25/00 ,  H04W72/04 ,  H04W76/04

CPC classification number: H04W52/0251 ,  H04L25/00 ,  H04W52/0258 ,  H04W72/042 ,  H04W76/28 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/168 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/26

Abstract: Providing a power-saving mode for control channel monitoring in discontinuous reception (DRX) scenarios. Upon waking from a sleep mode at the conclusion of a DRX off period, a baseband modem may transition to a low-power mode configured to receive and decode only a control channel, such as a physical downlink control channel (PDCCH). If the control channel indicates during a DRX on period that communication traffic will be transmitted to the baseband modem, then the baseband modem may transition to a full-power mode to receive the communication traffic. Otherwise, the baseband modem may transition back to the sleep mode. The low-power mode may be implemented by a dedicated set of hardware configured to draw less power than a full set of hardware configured to implement the high-power mode.

Abstract translation: 在不连续接收（DRX）场景中提供用于控制信道监视的省电模式。 在DRX关闭时段结束时，从睡眠模式唤醒时，基带调制解调器可以转换到被配置为仅接收和解码诸如物理下行链路控制信道（PDCCH）的控制信道的低功率模式。 如果控制信道在DRX开启期间指示通信业务将被发送到基带调制解调器，则基带调制解调器可以转换到全功率模式以接收通信业务。 否则，基带调制解调器可以转换回睡眠模式。 低功耗模式可以通过配置成比配置成实现高功率模式的全套硬件抽取更少功率的专用硬件组来实现。

公开(公告)号：US20150373774A1

公开(公告)日：2015-12-24

申请号：US14310472

申请日：2014-06-20

Applicant: Apple Inc.

Inventor： Farouk Belghoul ,  Tarik Tabet ,  Syed Aon Mujtaba ,  Dawei Zhang

IPC: H04W76/04 ,  H04L12/26

CPC classification number: H04W76/28 ,  H04L41/147 ,  H04L43/0858 ,  H04L43/16

Abstract: End-to-end delay adaptation in conjunction with connected discontinuous reception (C-DRX) mode communication during cellular voice calls. A Voice over LTE (VoLTE) call may be established between a first wireless user equipment (UE) device and a second UE. End-to-end delay between real-time transport protocol (RTP) layers of the first UE and the second UE for the VoLTE call may be estimated. The end-to-end delay may be compared with one or more thresholds A C-DRX cycle length for the VoLTE call may be modified based on comparing the end-to-end delay with the one or more thresholds.

Abstract translation: 结合在蜂窝语音呼叫期间连接的不连续接收（C-DRX）模式通信的端到端延迟适应。 可以在第一无线用户设备（UE）设备和第二UE之间建立LTE上的语音（VoLTE）呼叫。 可以估计第一UE的实时传输协议（RTP）层和用于VoLTE呼叫的第二UE之间的端到端延迟。 端到端延迟可以与一个或多个阈值相比较可以基于将端到端延迟与一个或多个阈值进行比较来修改VoLTE呼叫的C-DRX周期长度。

公开(公告)号：US20150373689A1

公开(公告)日：2015-12-24

申请号：US14310970

申请日：2014-06-20

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  S. Aon Mujtaba

IPC: H04W72/04 ,  H04W28/02

CPC classification number: H04W28/0263 ,  H04L1/00 ,  H04L1/0059 ,  H04L1/0066 ,  H04L1/0086 ,  H04L47/2475 ,  H04W72/087 ,  H04W76/15

Abstract: Selecting a physical channel for cellular communication based on application traffic pattern. A radio bearer may be established between a wireless device and a base station. A physical downlink channel may be selected for the radio bearer. The physical downlink channel may be selected based on an application traffic pattern of an application associated with the radio bearer. In some instances, a physical uplink channel may also be selected based on an application traffic pattern of an application associated with the radio bearer.

Abstract translation: 基于应用流量模式选择用于蜂窝通信的物理信道。 可以在无线设备和基站之间建立无线承载。 可以为无线承载选择物理下行链路信道。 可以基于与无线承载相关联的应用的应用业务模式来选择物理下行链路信道。 在一些情况下，还可以基于与无线电承载相关联的应用的应用业务模式来选择物理上行链路信道。

公开(公告)号：US20150365977A1

公开(公告)日：2015-12-17

申请号：US14729360

申请日：2015-06-03

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Youngjae Kim ,  Syed Aon Mujtaba

IPC: H04W74/08 ,  H04W72/04 ,  H04L1/18 ,  H04J13/00 ,  H04W52/34

CPC classification number: H04W74/0833 ,  H04J13/0062 ,  H04L1/189 ,  H04W52/34 ,  H04W72/0406 ,  H04W74/004 ,  Y02B70/30 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/26

Abstract: Enhanced random access procedures for link-budget-limited user equipment (UE) devices are disclosed. A user equipment device may transmit a first message containing a Physical Random Access Channel (PRACH). The PRACH contains instances of a Zadoff-Chu sequence, and may be transmitted repeatedly as part of a single random attempt, to facilitate correlation data combining at the base station. The available Zadoff-Chu sequences may be partitioned among a plurality of sets, each set being associated with a respective Doppler shift range (or frequency hop pattern or time repetition pattern). A UE device may signal Doppler shift (or other information) to the base station by selection of one of the sets. The first PRACH transmission and the following PRACH transmission may occur in consecutive subframes. A UE device may select from a special set of Zadoff-Chu sequences (different from a conventional set of sequences), to signal its status as a link-budget-limited device.

Abstract translation: 公开了针对链路限制用户设备（UE）设备的增强的随机接入过程。 用户设备设备可以发送包含物理随机接入信道（PRACH）的第一消息。 PRACH包含Zadoff-Chu序列的实例，并且可以作为单个随机尝试的一部分被重复发送，以便于在基站处的相关数据组合。 可用的Zadoff-Chu序列可以在多个集合之间分割，每个集合与相应的多普勒频移范围（或频率跳跃模式或时间重复模式）相关联。 UE设备可以通过选择组中的一个来向基站发信号通知多普勒频移（或其他信息）。 第一PRACH传输和随后的PRACH传输可以在连续的子帧中发生。 UE设备可以从Zadoff-Chu序列的特定集合中选择（与传统的序列集不同），以将其作为链路预算有限的设备的状态发信号。

公开(公告)号：US20150358047A1

公开(公告)日：2015-12-10

申请号：US14300290

申请日：2014-06-10

Applicant: Apple Inc.

Inventor： Konstantinos Sarrigeorgidis ,  Tarik Tabet ,  Syed A. Mujtaba

IPC: H04B1/54 ,  H04B1/12

CPC classification number: H04B1/54 ,  H04B1/12 ,  H04B1/123 ,  H04B1/525

Abstract: A transceiver device may include a transmit path that generates a modulated transmit signal based on a baseband signal, and a receive path that receives a receive signal, which is subject to third-order order distortion caused by intermodulation noise resulting from a continuous wave blocker intermodulating with transmit leakage from the transmit path. The transceiver may also include a compensation path that models portions of the transmit path and the receive path, and generates a replica signal representative of the third-order order distortion according to at least a specified function and the modeled portions of the transmit path and the receive path. The compensation path also filters the replica signal and subtracts the filtered replica signal from the receive signal to eliminate the third-order order distortion caused by the intermodulation noise. The filtering of the replica signal may be performed by programmable finite impulse response filters.

Abstract translation: 收发器设备可以包括基于基带信号生成调制的发送信号的发送路径和接收接收信号的接收路径，该接收信号受到由连续波阻塞器互调产生的互调噪声引起的三阶失真 来自发射路径的发射泄漏。 收发机还可以包括对发送路径和接收路径的部分进行建模的补偿路径，并且根据至少一个指定的功能和发送路径的建模部分和生成表示三阶失真的副本信号， 接收路径。 补偿路径还对复制信号进行滤波，并从接收信号中减去滤波后的复制信号，以消除由互调噪声引起的三阶失真。 可以通过可编程有限脉冲响应滤波器来执行复制信号的滤波。

公开(公告)号：US09185587B2

公开(公告)日：2015-11-10

申请号：US13867584

申请日：2013-04-22

Applicant: Apple Inc.

Inventor： Sarma V. Vangala ,  Tarik Tabet ,  Swaminathan Balakrishnan ,  Yuchul Kim ,  Navid Damji ,  Sreevalsan Vallath ,  Samy Khay-Ibbat ,  Syed Aon Mujtaba

IPC: H04W36/00 ,  H04W24/06 ,  H04W24/08

CPC classification number: H04L43/0888 ,  H04B17/309 ,  H04L43/10 ,  H04W24/06 ,  H04W24/08

Abstract: Loading estimation of 3GPP networks. One or more metrics relating to a cell of a 3GPP network may be measured. Loading of the cell may be estimated based on the one or more metrics. The metrics may include metrics measured, estimated, or derived at multiple layers, possibly including one or more of physical layer, radio link control layer, radio resource control layer, or application layer metrics.

Abstract translation: 加载3GPP网络的估计。 可以测量与3GPP网络的小区有关的一个或多个度量。 可以基于一个或多个度量来估计小区的加载。 度量可以包括在多层测量，估计或导出的度量，可能包括物理层，无线电链路控制层，无线电资源控制层或应用层度量中的一个或多个。

公开(公告)号：US20150304883A1

公开(公告)日：2015-10-22

申请号：US14683984

申请日：2015-04-10

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Sarma V. Vangala ,  Venkateswara Rao Manepalli ,  Madhusudan Chaudhary

IPC: H04W28/02 ,  H04L12/823 ,  H04W76/04 ,  H04L12/803

CPC classification number: H04W28/0289 ,  H04L47/122 ,  H04L47/22 ,  H04L47/28 ,  H04L47/32 ,  H04W28/0205 ,  H04W72/1252 ,  H04W72/1284 ,  H04W76/27 ,  H04W76/28

Abstract: This disclosure relates to techniques for scheduling radio resource control connections between a wireless device and a network element of a network in advance. According to some embodiments, a wireless device may provide an indication of one or more types of upcoming data traffic to the network element. The network element may schedule one or more radio resource control connections for the wireless device based at least in part on the indication of one or more types of upcoming data traffic. The network element may provide an indication of the scheduled radio resource control connection(s) to the wireless device. The wireless device and the network may establish the scheduled radio resource control connection at the scheduled time.

公开(公告)号：US20150288809A1

公开(公告)日：2015-10-08

申请号：US14678187

申请日：2015-04-03

Applicant: Apple Inc.

Inventor： Huarui Liang ,  Tarik Tabet ,  Farouk Belghoul ,  Dawei Zhang

IPC: H04M3/22 ,  H04W72/04

CPC classification number: H04M3/2263 ,  H04W16/14 ,  H04W24/02 ,  H04W72/0426 ,  H04W72/0453 ,  H04W88/08

Abstract: This disclosure relates to operation and management of cellular communication systems including cells and access points operating in unlicensed frequency bands. According to some embodiments, a base station in a network may receive operation and management policy information, including information for configuring network elements operating in unlicensed frequency bands. The policy information may include information for coordinating network elements operating in unlicensed frequency bands in a manner configured to reduce interference in the unlicensed frequency bands. The base station may provide configuration information to one or more network elements in the network operating in unlicensed frequency bands. The configured network elements may operate in the unlicensed frequency bands in accordance with the configuration information.

Abstract translation: 本公开涉及包括在非许可频带中操作的小区和接入点的蜂窝通信系统的操作和管理。 根据一些实施例，网络中的基站可以接收操作和管理策略信息，包括用于配置在非许可频带中操作的网元的信息。 策略信息可以包括以被配置为减少未许可频带中的干扰的方式来协调在非许可频带中操作的网元的信息。 基站可以向在非许可频带中操作的网络中的一个或多个网元提供配置信息。 配置的网络元件可以根据配置信息在非许可频带中操作。