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：US20150351028A1

公开(公告)日：2015-12-03

申请号：US14497148

申请日：2014-09-25

Applicant: Apple Inc.

Inventor： Sreevalsan Vallath ,  Carola Faronius

IPC: H04W52/02 ,  H04L29/06 ,  H04W24/02

CPC classification number: H04W52/0209 ,  H04L65/1006 ,  H04L65/607 ,  H04L65/80 ,  H04W24/02 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/25

Abstract: Methods and apparatus for reducing power consumption in a wireless device operating in a discontinuous transmission (DTX) mode while using a voice over Long Term Evolution (VoLTE) service. The wireless device detects a period of voice inactivity and transmits one or more silence descriptor (SID_UPDATE) frames to a second wireless device in place of encoded speech frames. The SID_UPDATE frames are transmitted periodically based on measurements of comfort noise parameters. The wireless device determines a difference between weighted averages of comfort noise (CN) parameters of two sequences of encoded speech frames. When the difference exceeds a difference threshold, a SID_UPDATE frame is transmitted. Additionally, in some embodiments, a SID_UPDATE frame is transmitted when the weighted average of CN parameters exceeds a parameter threshold and/or when a time between SID_UPDATE frames or time elapsed after entering a silence state exceeds one or more time thresholds.

Abstract translation: 在长期演进（VoLTE）服务中使用语音的同时，以不连续传输（DTX）模式工作的无线设备中的功率消耗降低的方法和装置。 无线设备检测语音不活动的时段，并且将一个或多个静音描述符（SID_UPDATE）帧发送到第二无线设备来代替编码语音帧。 SID_UPDATE帧根据舒适噪声参数的测量周期性传输。 无线设备确定两个编码语音帧序列的舒适噪声（CN）参数的加权平均值之间的差异。 当差值超过差值阈值时，发送SID_UPDATE帧。 此外，在一些实施例中，当CN参数的加权平均值超过参数阈值和/或当SID_UPDATE帧之间的时间或进入静音状态之后经过的时间超过一个或多个时间阈值时，传送SID_UPDATE帧。

公开(公告)号：US20150237615A1

公开(公告)日：2015-08-20

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: H04W72/04 ,  H04W64/00

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.

Abstract translation: 本公开涉及无线用户设备（UE）设备的网络基础设施识别。 根据一个实施例，可以发送对基础设施标识信息的一个或多个请求。 每个请求可以指示UE的当前位置。 可以向每个对应的相应请求接收相应的响应。 每个相应的响应可以包括在相应的相应请求中指示的当前位置的基础设施识别信息。 可以基于响应来识别UE执行蜂窝通信的蜂窝网络基础设施设备的供应商，类型，型号或版本等特征，并且因此可以在这种蜂窝通信期间实现特定于所识别的设备的特征。

公开(公告)号：US08958799B2

公开(公告)日：2015-02-17

申请号：US13777454

申请日：2013-02-26

Applicant: Apple Inc.

Inventor： Sarma V. Vangala ,  Samy Khay-Ibbat ,  Si Li ,  Sreevalsan Vallath ,  Swaminathan Balakrishnan ,  Tahir Shamim ,  Tarik Tabet ,  Wael S. Barakat ,  Wanping Zhang

IPC: H04W36/00 ,  H04W36/26

CPC classification number: H04W36/26 ,  H04W36/14 ,  H04W36/30 ,  H04W36/36

Abstract: User Equipment (UE) based forced inter radio access technology (iRAT) handover. A connection to a network may be established via a first cell operating according to a first radio access technology (RAT). It may be determined to initiate a handover of the UE from the first cell to a second cell operating according to a second RAT. An indication may be transmitted to the network to initiate a handover of the UE from the first cell to the second cell. An indication may be received from the network to perform handover of the UE from the first cell to the second cell in response to the indication to initiate the handover. Handover of the UE from the first cell to the second cell may be performed in response to the indication to perform the handover. Handover may include releasing the connection to the network via the first cell and establishing a connection to the network via the second cell.

Abstract translation: 基于用户设备（UE）的强制无线接入技术（iRAT）切换。 可以经由根据第一无线电接入技术（RAT）操作的第一小区来建立到网络的连接。 可以确定发起UE从第一小区到根据第二RAT操作的第二小区的切换。 可以向网络发送指示以发起UE从第一小区到第二小区的切换。 可以响应于启动切换的指示，从网络接收指示以执行UE从第一小区到第二小区的切换。 可以响应于执行切换的指示来执行UE从第一小区到第二小区的切换。 切换可以包括经由第一小区释放到网络的连接，并经由第二小区建立到网络的连接。

公开(公告)号：US20140219246A1

公开(公告)日：2014-08-07

申请号：US14168402

申请日：2014-01-30

Applicant: Apple Inc.

Inventor： Samy Khay-Ibbat ,  Sarma V. Vangala ,  Sreevalsan Vallath ,  Navid Damji ,  Luciano Miguel Verger ,  Srinivasan Vasudevan ,  Shivesh Makharia ,  Sree Ram Kodali ,  Madhusudan Chaudhary ,  Jianxiong Shi

IPC: H04W36/00

CPC classification number: H04W36/0022 ,  H04J3/0632 ,  H04L1/205 ,  H04L29/06027 ,  H04L29/06176 ,  H04L65/102 ,  H04W36/0066 ,  H04W76/22

Abstract: A method for providing indication of an SRVCC handover is disclosed. The method can include a first wireless communication device participating in a voice call with a second wireless communication device via a connection between the first wireless communication device and a first network. The method can further include the first wireless communication device determining a condition indicative of an impending SRVCC handover of the first wireless communication device from the first network to a legacy network. In response to the condition, the method can additionally include the first wireless communication device formatting a message including an indication that the first wireless communication device is going to perform the SRVCC handover and sending the message to the second wireless communication device prior to performance of the SRVCC handover.

Abstract translation: 公开了一种提供SRVCC切换指示的方法。 该方法可以包括经由第一无线通信设备和第一网络之间的连接与第二无线通信设备参与语音呼叫的第一无线通信设备。 该方法还可以包括第一无线通信设备确定指示第一无线通信设备从第一网络到遗留网络即将发生的SRVCC切换的条件。 响应于该条件，该方法可以另外包括第一无线通信设备格式化包括第一无线通信设备将要执行SRVCC切换的指示的消息，并且在执行所述第一无线通信设备之前将消息发送到第二无线通信设备 SRVCC切换。

公开(公告)号：US20140113630A1

公开(公告)日：2014-04-24

申请号：US13777454

申请日：2013-02-26

Applicant: APPLE INC.

Inventor： Sarma V. Vangala ,  Samy Khay-Ibbat ,  Si Li ,  Sreevalsan Vallath ,  Swaminathan Balakrishnan ,  Tahir Shamim ,  Tarik Tabet ,  Wael S. Barakat ,  Wanping Zhang

IPC: H04W36/26

CPC classification number: H04W36/26 ,  H04W36/14 ,  H04W36/30 ,  H04W36/36

Abstract: User Equipment (UE) based forced inter radio access technology (iRAT) handover. A connection to a network may be established via a first cell operating according to a first radio access technology (RAT). It may be determined to initiate a handover of the UE from the first cell to a second cell operating according to a second RAT. An indication may be transmitted to the network to initiate a handover of the UE from the first cell to the second cell. An indication may be received from the network to perform handover of the UE from the first cell to the second cell in response to the indication to initiate the handover. Handover of the UE from the first cell to the second cell may be performed in response to the indication to perform the handover. Handover may include releasing the connection to the network via the first cell and establishing a connection to the network via the second cell.

Abstract translation: 基于用户设备（UE）的强制无线接入技术（iRAT）切换。 可以经由根据第一无线接入技术（RAT）操作的第一小区来建立到网络的连接。 可以确定发起UE从第一小区到根据第二RAT操作的第二小区的切换。 可以向网络发送指示以发起UE从第一小区到第二小区的切换。 可以响应于启动切换的指示，从网络接收指示以执行UE从第一小区到第二小区的切换。 可以响应于执行切换的指示来执行UE从第一小区到第二小区的切换。 切换可以包括经由第一小区释放到网络的连接，并经由第二小区建立到网络的连接。

公开(公告)号：US20140044046A1

公开(公告)日：2014-02-13

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: H04W28/02

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：US20140016490A1

公开(公告)日：2014-01-16

申请号：US13940154

申请日：2013-07-11

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Navid Damji ,  Sreevalsan Vallath ,  Sarma V. Vangala ,  Samy Khay-Ibbat

IPC: H04W24/10

CPC classification number: H04W24/10 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0639 ,  H04L1/0026 ,  H04L1/0027 ,  H04W72/1215 ,  H04W72/1284

Abstract: A method for handling a missed rank report during a tune-away period is provided. The method can include a wireless communication device tuning away from a first network to a second network for a tune-away period; returning to the first network from the tune-away period; determining that a scheduled rank report was missed during the tune-away period; generating a Channel State Indicator (CSI) report based on a previously defined Rank Indicator (RI) value known to the first network in response to missing the scheduled rank report; and sending the CSI report to the first network.

Abstract translation: 提供了一种在调谐期间处理错过等级报告的方法。 该方法可以包括无线通信设备从远离第一网络调谐到第二网络以进行调谐时段; 从调离期回到第一个网络; 确定在调离期间错过了排期的报告; 基于先前定义的第一网络已知的秩响应（RI）值响应于丢失所述排列的报告而产生信道状态指示符（CSI）报告; 并将CSI报告发送到第一个网络。

公开(公告)号：US20130294417A1

公开(公告)日：2013-11-07

申请号：US13859657

申请日：2013-04-09

Applicant: Apple Inc.

Inventor： Vikram B. Yerrabommanahalli ,  Prashant H. Vashi ,  Jianxiong Shi ,  Sreevalsan Vallath

IPC: H04W40/24

CPC classification number: H04W40/24 ,  H04W48/18 ,  H04W88/06

Abstract: Methods and apparatus for intelligent scheduling in hybrid networks based on client identity. For example, in one embodiment, the hybrid networks are cellular networks (e.g., LTE and CDMA 1X), and a cellular device uses a single-radio solution to support circuit-switched calls on a CDMA 1X network and packet-switched calls on LTE. Periodically, the cellular device tunes away from LTE and monitors CDMA 1X activity, and vice versa. The LTE network can infer the cellular device's tune away schedule, based on the device's identity, and the paging schedule algorithm of the CDMA 1X network.

Abstract translation: 基于客户端身份的混合网络智能调度方法与装置。 例如，在一个实施例中，混合网络是蜂窝网络（例如，LTE和CDMA 1X），并且蜂窝设备使用单无线电解决方案来支持CDMA 1X网络上的电路交换呼叫和LTE上的分组交换呼叫 。 周期性地，蜂窝设备调谐远离LTE并监视CDMA 1X活动，反之亦然。 LTE网络可以基于设备的身份以及CDMA 1X网络的寻呼调度算法来推断蜂窝设备的调出时间表。