公开(公告)号：US10187857B2

公开(公告)日：2019-01-22

申请号：US14498405

申请日：2014-09-26

Applicant: APPLE INC.

Inventor： Samy Khay-Ibbat ,  Navid Damji ,  Shivesh Makharia ,  Johnson Sebeni ,  Sreevalsan Vallath ,  Longda Xing

IPC: H04W52/22 ,  H04W52/02 ,  H04W72/04 ,  H04W72/12 ,  H04W76/28 ,  H04W84/04

Abstract: A station that performs a method to coordinate transmissions of scheduling requests (SR) with OnDurations of a connected discontinuous reception (C-DRX) cycle. The station receives a packet at a packet arrival time relative to a schedule indicating the SR opportunities and onDurations, the SR opportunities occurring at a first interval, the onDurations occurring at a second interval, the first interval being less than the second interval. The station determines an SR opportunity subsequent to the packet arrival time that precedes an entirety of a subsequent onDuration, such that a transmission duration to transmit the SR and the packet maximally overlaps with the selected onDuration. A sleep mode of the processor of the station is used until a time associated with the selected SR opportunity. An active mode of the processor is used to transmit the SR and receive control channel information during the onDuration.

公开(公告)号：US10129828B2

公开(公告)日：2018-11-13

申请号：US15257629

申请日：2016-09-06

Applicant: Apple Inc.

Inventor： Yingjie Zhao ,  Li Su ,  Sreevalsan Vallath ,  Wanping Zhang

IPC: G08C17/00 ,  H04W52/02 ,  H04W72/04 ,  H04L5/00 ,  H04L29/06 ,  H04W28/06

Abstract: A user equipment device (UE) may transmit, in a packet to a base station, information associated with resource configuration/resource requirement corresponding to wireless uplink communications of the wireless communication device. The base station may assign resources to the UE based on the received information. The UE may receive an uplink grant from the base station, with the uplink grant specifying resources for use by the wireless communication device during the uplink communications based on the information previously transmitted to the base station by the wireless communication device. The UE may send the packet at the time a voice call with the UE is initiated, and/or the UE may transmit the information during voice calls in response the UE changing one or more resource configuration parameters during the voice call. The UE may use Robust Header Compression packets of various types to transmit the resource configuration information.

公开(公告)号：US09775086B2

公开(公告)日：2017-09-26

申请号：US14320013

申请日：2014-06-30

Applicant: APPLE INC.

Inventor： Sarma Vangala ,  Tarik Tabet ,  Swaminathan Balakrishnan ,  Sreevalsan Vallath

IPC: H04W4/00 ,  H04W36/22 ,  H04W36/14 ,  H04W84/12

CPC classification number: H04W36/22 ,  H04W36/14 ,  H04W84/12

Abstract: A device and method performs a handover. The method includes establishing a connection to a cellular network. The method includes determining whether a WiFi network is available for connection. The method includes determining performance data of the WiFi network based upon network metrics. The method includes determining a quality of service (QoS) parameter associated with a currently executed application, the QoS parameter being indicative of whether a handover from the cellular network to the WiFi network is permitted. The method includes performing the handover from the cellular network to the WiFi network when the performance data of the WiFi network satisfies a set of predetermined criteria for the network metrics and the QoS parameter indicates the handover is permitted.

公开(公告)号：US09615377B2

公开(公告)日：2017-04-04

申请号：US14725764

申请日：2015-05-29

Applicant: APPLE INC.

Inventor： Swaminathan Balakrishnan ,  Sarma V. Vangala ,  Sreevalsan Vallath ,  Prateek Sharma

IPC: H04W72/00 ,  H04W72/10 ,  H04W72/04 ,  H04W48/14

CPC classification number: H04W72/10 ,  H04W48/14 ,  H04W48/18 ,  H04W72/0453

Abstract: Described herein are systems and methods for prioritizing frequency selection of a user equipment (“UE”) having a transceiver configured to enable the UE to establish a connection with a network using at least two communication protocols. A method may comprise recording, at the UE, a camped frequency and a camped band with which the UE is communicating with the first network in the first protocol, disconnecting from the first network and connecting to the second network, and disconnecting from the second network and reconnecting to the first network, wherein the reconnecting to the first network includes determining whether one of the camped frequency or a different frequency within the camped band is available for reconnection to the first network, and reconnecting to the first network using the one of the camped frequency or the different frequency within the camped band.

公开(公告)号：US09603117B2

公开(公告)日：2017-03-21

申请号：US14499099

申请日：2014-09-27

Applicant: Apple Inc.

Inventor： Paul V. Flynn ,  Rafael L. Rivera-Barreto ,  Sreevalsan Vallath ,  Francisco J. Gonzalez

IPC: H04M3/00 ,  H04W64/00 ,  H04W48/04

CPC classification number: H04W64/00 ,  H04W48/04 ,  H04W48/14 ,  H04W48/18 ,  H04W64/003

Abstract: This disclosure relates to network infrastructure identification by a wireless user equipment (UE) device. According to one embodiment, one or more requests for infrastructure identification information may be transmitted. Each request may indicate a current location of the UE. A respective response may be received to each corresponding respective request. Each respective response may include infrastructure identification information for the current location indicated in the corresponding respective request. Features such as vendor, type, model, or version of cellular network infrastructure equipment with which the UE performs cellular communication may be identified based on the response(s), and features specific to the identified equipment may accordingly be implemented during such cellular communication.

公开(公告)号：US09497771B2

公开(公告)日：2016-11-15

申请号：US14683493

申请日：2015-04-10

Applicant: Apple Inc.

Inventor： Sarma V. Vangala ,  Tarik Tabet ,  Venkateswara Rao Manepalli ,  Madhusudan Chaudhary ,  Faraz Faheem ,  Syed Aon Mujtaba ,  Jianxiong Shi ,  Sreevalsan Vallath

IPC: H04W52/02 ,  H04W72/12 ,  H04L1/18

CPC classification number: H04W76/27 ,  H04L1/1832 ,  H04W28/0268 ,  H04W40/005 ,  H04W72/1242 ,  H04W84/042 ,  H04W88/02

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.

Abstract translation: 本公开涉及用于预先在无线设备和网络的网络元件之间调度无线电资源控制连接的技术。 根据一些实施例，无线设备可以向网络单元提供一种或多种类型的即将到来的数据业务的指示。 网络元件可以至少部分地基于一种或多种类型的即将到来的数据业务的指示来调度无线设备的一个或多个无线电资源控制连接。 网络元件可以向无线设备提供调度的无线电资源控制连接的指示。 无线设备和网络可以在预定时间建立调度的无线电资源控制连接。

公开(公告)号：US09451497B2

公开(公告)日：2016-09-20

申请号：US13966203

申请日：2013-08-13

Applicant: Apple Inc.

Inventor： Sarma V. Vangala ,  Sreevalsan Vallath ,  Swaminathan Balakrishnan ,  Vikram Bhaskara Yerrabommanahalli

IPC: H04W4/00 ,  H04W28/02 ,  H04L12/801 ,  H04L12/807

CPC classification number: H04W28/0273 ,  H04L47/193 ,  H04L47/27

Abstract: A method for reducing packet loss during data transfer from a network to a wireless communication device over a connection is disclosed. The method can include the wireless communication device signaling a first receive window size for a data transfer; determining occurrence of an event resulting in an interruption of the connection; and, in response to determining occurrence of the event, signaling a second receive window size for the data transfer prior to the event to trigger an adjustment of a data rate of the data transfer in preparation for the event.

Abstract translation: 公开了一种在通过连接从网络到无线通信设备的数据传输期间减少分组丢失的方法。 该方法可以包括无线通信设备用信号通知用于数据传送的第一接收窗口大小; 确定导致连接中断的事件的发生; 并且响应于确定事件的发生，在事件之前发信号通知数据传输的第二接收窗口大小以触发数据传输的数据速率的调整以准备该事件。

公开(公告)号：US09307467B2

公开(公告)日：2016-04-05

申请号：US14012934

申请日：2013-08-28

Applicant: Apple Inc.

Inventor： Swaminathan Balakrishnan ,  Sarma V. Vangala ,  Wanping Zhang ,  Tahir Shamim ,  Sreevalsan Vallath

IPC: H04W36/14 ,  H04W48/18

CPC classification number: H04W36/14 ,  H04W48/18 ,  Y02D70/00 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/23 ,  Y02D70/24

Abstract: A network reselection procedure, of a wireless communication device, that occurs following a network detachment event, such as a device sleep event or a device power savings mode event. The wireless communication device attempts to acquire a first wireless network to which the wireless communication device was most recently attached, immediately preceding the network detachment event. Then, in response to an unsuccessful acquisition of the first wireless network, the wireless communication device attempts an alternate network acquisition utilizing a Most Recently Used List (MRUL) that is stored at the wireless communication device and includes information about one or more frequency bands allocated to a primary service provider with which the wireless communication device is affiliated. After determining whether the alternate network acquisition attempt was successful, the wireless communication device attaches to a second network and stores information associated with the second network.

Abstract translation: 在网络分离事件之后发生的无线通信设备的网络重选过程，诸如设备睡眠事件或设备省电模式事件。 无线通信设备在网络分离事件之前尝试获取无线通信设备最近附接到的第一无线网络。 然后，响应于对第一无线网络的不成功的获取，无线通信设备尝试使用存储在无线通信设备处的最近使用列表（MRUL）进行备用网络捕获，并且包括关于分配的一个或多个频带的信息 到无线通信设备附属于的主要服务提供商。 在确定备用网络获取尝试是否成功之后，无线通信设备连接到第二网络并存储与第二网络相关联的信息。

公开(公告)号：US20160021557A1

公开(公告)日：2016-01-21

申请号：US14870266

申请日：2015-09-30

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Sarma V. Vangala ,  Samy Khay-Ibbat ,  Swaminathan Balakrishnan ,  Ajoy K. Singh ,  Sree Ram Kodali ,  Rafael L. Rivera-Barreto ,  Syed Aon Mujtaba ,  Faraz Faheem ,  Sreevalsan Vallath

IPC: H04W24/08 ,  H04W36/04 ,  H04W72/08

CPC classification number: H04W24/08 ,  H04L43/0888 ,  H04L43/16 ,  H04W28/0236 ,  H04W28/0284 ,  H04W28/08 ,  H04W36/04 ,  H04W72/0486 ,  H04W72/085 ,  H04W88/02

Abstract: Estimating loading and potential available throughput a serving cell of a wireless user equipment (UE) device. Physical layer metrics of a channel on which the UE communicates with the serving cell may be measured. Cell utilization of the serving cell may be calculated based at least in part on the measured physical layer metrics. A maximum available throughput of the serving cell may be calculated based on the cell utilization.

公开(公告)号：US20150173009A1

公开(公告)日：2015-06-18

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.

Abstract translation: 在多载波环境中增强无线电链路性能的系统和方法。 一种方法可以由UE执行，该UE包括扫描主小区的多个载波分量，确定主小区的第一带宽，二次小区的扫描，确定次小区的第二带宽，确定最大聚合带宽 通过组合第一带宽和第二带宽，并且当最大聚合带宽超过UE的带宽能力时，执行小区选择过程以基于第一带宽和第二带宽中的较高者选择主小区或辅小区中的一个 带宽。