公开(公告)号：US11432313B2

公开(公告)日：2022-08-30

申请号：US16888555

申请日：2020-05-29

Applicant: Apple Inc.

Inventor： Ioannis Pefkianakis ,  Madhusudan Chaudhary ,  Swaminathan Balakrishnan ,  Muthukumaran Dhanapal ,  Lakshmi Kavuri ,  Thanigaivelu Elangovan ,  Ajoy K. Singh ,  Deepankar Bhattacharjee ,  Gaurav Pathak ,  Carola Faronius ,  Franco Travostino ,  Raghuveer Mallikarjun ,  Harshit Chuttani ,  Sreevalsan Vallath ,  Rajesh Ambati

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04W28/02 ,  H04L43/0882 ,  H04W16/10

Abstract: A system and method for operation of a user equipment (UE) to determine a cellular network bottleneck in a downlink channel, and an apparatus for use in a UE for determining the same. A UE may determine a burst of network traffic from network traffic received from the cellular network during a series of transmission time intervals. The UE may analyze resource allocations to the UE during the burst to determine an extent to which the cellular network is busy. The UE may determine that the cellular network is experiencing a bottleneck based at least in part on the analysis of the resource allocations to the UE in the burst.

公开(公告)号：US11121746B2

公开(公告)日：2021-09-14

申请号：US16023607

申请日：2018-06-29

Applicant: Apple Inc.

Inventor： Ping Wang ,  Guoqing Li ,  Veerendra Boodannavar ,  Daniel R. Borges ,  Sreevalsan Vallath

IPC: H04B7/04 ,  H04B7/0452 ,  H04W84/12

Abstract: Disclosed herein are system, method, and computer program product embodiments for indicating a preference to receive a single-user multiple input multiple output (SU-MIMO) or multi-user multiple input multiple output (MU-MIMO) transmission from an access point (AP). Embodiments include generating a standard action frame that contains an action field that species a preference to receive a SU-MIMO or MU-MIMO transmission from the AP. A station (STA) can transmit the generated action frame to the AP. The STA can receive an acknowledgement frame from the AP that indicates the AP is configured to use the requested transmission method. The STA can then receive data from the AP using the requested transmission method.

公开(公告)号：US10863428B2

公开(公告)日：2020-12-08

申请号：US14869325

申请日：2015-09-29

Applicant: APPLE INC.

Inventor： Deepankar Bhattacharjee ,  Sreevalsan Vallath ,  Prateek Sharma

IPC: H04W36/14 ,  H04W48/18 ,  H04W56/00 ,  H04W74/08 ,  H04W88/06 ,  H04W76/16

Abstract: A user equipment and a method performed by the user equipment that has a transceiver configured to enable the user equipment to establish a connection with a first network and a second network. The method including establishing a connection to each of the first network and the second network, tuning away from the first network to the second network, tuning back to the first network from the second network and determining whether to perform a network operation with the first network after tuning back to the first network.

公开(公告)号：US10736087B2

公开(公告)日：2020-08-04

申请号：US14214516

申请日：2014-03-14

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Vinay Majjigi ,  Christian W. Mucke ,  Sreevalsan Vallath

IPC: H04W72/04 ,  H04L5/00

Abstract: A wireless communication system is presented for future scheduling of secondary component carrier(s) (SCC) during carrier aggregation in LTE wireless communications. A primary component carrier in a first subframe can be used to indicate at what future subframe SCC data may exist for the mobile device (e.g., UE, etc.). The UE can then leave off all SCC receive circuitry until the future subframe, when it can turn on all needed SCC receive circuitry to receive the SCC data. After receiving the SCC data, the UE can again power off the SCC receive circuitry.

公开(公告)号：US20190116552A1

公开(公告)日：2019-04-18

申请号：US16139404

申请日：2018-09-24

Applicant: Apple Inc.

Inventor： Johnson O. Sebeni ,  Yang Li ,  Zhu Ji ,  Sami M. Almalfouh ,  Faraz Faheem ,  Jianxiong Shi ,  Sarma V. Vangala ,  Sreevalsan Vallath ,  Haitong Sun ,  Yuchul Kim ,  Wei Zeng ,  Dawei Zhang

IPC: H04W52/02 ,  H04W72/04 ,  H04L5/00 ,  H04W72/14 ,  H04W76/28 ,  H04W28/02

Abstract: This disclosure relates to performing cellular communication using a power efficient downlink control information framework. A wireless device and a cellular base station may exchange configuration information indicating that the cellular base station and the wireless device support a sleep downlink control information (sDCI) format. An sDCI configuration according to the sDCI format may be negotiated, including selecting at least one sDCI configuration parameter based at least in part on an application type currently associated with cellular communication between the cellular base station and the wireless device. Downlink control information may be provided during one or more subframes in accordance with the sDCI configuration. One or more subframes for which no downlink control information will be provided to the wireless device may be determined based at least in part on the sDCI configuration.

公开(公告)号：US09949153B2

公开(公告)日：2018-04-17

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: H04W4/00 ,  H04W24/08 ,  H04W28/02 ,  H04W28/08 ,  H04W72/04 ,  H04W36/04 ,  H04W72/08 ,  H04L12/26 ,  H04W88/02

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：US20170171817A1

公开(公告)日：2017-06-15

申请号：US15257629

申请日：2016-09-06

Applicant: Apple Inc.

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

IPC: H04W52/02 ,  H04W72/04 ,  H04W28/06

CPC classification number: H04W52/0222 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0087 ,  H04L65/608 ,  H04L69/04 ,  H04L69/22 ,  H04W28/06 ,  H04W72/0413 ,  H04W72/048 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/26

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：US09572059B2

公开(公告)日：2017-02-14

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 ,  H04W72/12 ,  H04B7/06 ,  H04L1/00

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：US09554302B2

公开(公告)日：2017-01-24

申请号：US14870293

申请日：2015-09-30

Applicant: Apple Inc.

Inventor： Samy Khay-Ibbat ,  Navid Damji ,  Sreevalsan Vallath ,  Sarma V. Vangala ,  Johnson O. Sebeni

IPC: H04W28/02 ,  H04W72/12

CPC classification number: H04W28/0268 ,  H04W72/1236

Abstract: QoS based uplink data buffering while TTI bundling is enabled by a wireless user equipment (UE) device. The UE may establish a packet-switched connection with a network via a wireless link. The UE may receive, at a media access control (MAC) layer, an indication to enable TTI bundling. The UE may selectively buffer uplink data at an application layer based on the indication to enable TTI bundling. The uplink data may be buffered selectively based on Quality of Service (QoS) considerations. Uplink transmissions may subsequently be performed using TTI bundling.

Abstract translation: 基于QoS的上行链路数据缓冲，而TTI绑定由无线用户设备（UE）设备启用。 UE可以经由无线链路与网络建立分组交换连接。 在媒体接入控制（MAC）层，UE可以接收启用TTI绑定的指示。 基于用于启用TTI绑定的指示，UE可以选择性地缓冲应用层上的上行链路数据。 可以基于服务质量（QoS）考虑来选择性地缓冲上行链路数据。 随后可以使用TTI捆绑来执行上行链路传输。

公开(公告)号：US09521699B2

公开(公告)日：2016-12-13

申请号：US15040934

申请日：2016-02-10

Applicant: Apple Inc.

Inventor： Samy Khay-Ibbat ,  Sarma V. Vangala ,  Paul V. Flynn ,  Wen Zhao ,  Sreevalsan Vallath ,  Navid Damji

IPC: H04N7/14 ,  H04W76/02 ,  H04W28/02 ,  H04W76/06 ,  H04W84/12

CPC classification number: H04W76/16 ,  H04N7/147 ,  H04N7/148 ,  H04W28/0215 ,  H04W28/0252 ,  H04W28/08 ,  H04W76/34 ,  H04W84/12

Abstract: A method for offloading a video portion of a video call form a cellular network to a WLAN is provided. The method can include a wireless communication device participating in a video call with a remote device over a connection between the wireless communication device and a cellular network. The video call can include a first video stream carried over a first bearer on the cellular network and an audio stream carried over a second bearer on the cellular network. The method can further include the wireless communication device establishing a connection between the wireless communication device and a WLAN; performing a call setup procedure with the remote device to establish a second video stream over the WLAN; terminating the first video stream; and using the second video stream and the audio stream to continue the video call.

Abstract translation: 提供了将视频呼叫的视频部分从蜂窝网络卸载到WLAN的方法。 该方法可以包括通过无线通信设备和蜂窝网络之间的连接与远程设备参与视频呼叫的无线通信设备。 视频呼叫可以包括通过蜂窝网络上的第一承载携带的第一视频流和在蜂窝网络上的第二承载上承载的音频流。 该方法还可以包括无线通信设备建立无线通信设备与WLAN之间的连接; 与所述远程设备执行呼叫建立过程以在所述WLAN上建立第二视频流; 终止第一视频流; 并且使用第二视频流和音频流来继续视频通话。