公开(公告)号：US12267744B2

公开(公告)日：2025-04-01

申请号：US17821915

申请日：2022-08-24

Applicant: Apple Inc.

Inventor： Raghuveer Mallikarjunan ,  Sree Ram Kodali ,  Ajoy K. Singh ,  Vijay Venkataraman ,  Hsien-Po Shiang

IPC: H04W36/14 ,  H04W36/30 ,  H04W80/06 ,  H04W84/04 ,  H04W84/12

Abstract: A user equipment (UE) configured to establish a multimedia data stream with a further UE, identify a predetermined condition, wherein the predetermined condition indicates a decrease in quality of the multimedia data stream at the further UE and implement a mechanism to mitigate the degradation of the decrease in quality of the multimedia data stream at the further UE.

公开(公告)号：US20250024357A1

公开(公告)日：2025-01-16

申请号：US18349800

申请日：2023-07-10

Applicant: Apple Inc.

Inventor： Ajoy K. Singh ,  Mansi Goyal ,  Jared K. McGann ,  Keven M. Kachar ,  Todd R. Grooms ,  Ozgur Ekici ,  Alexander M. Bubin ,  Ajay Kumar S. Gupta ,  Yifan Zhu

IPC: H04W48/18 ,  H04W4/029

Abstract: This disclosure relates to techniques for determining and presenting an indication of a closest cellular service location in a wireless communication system. A wireless device may receive cellular connectivity event information. The wireless device may determine a closest cellular service availability location for the wireless device based at least in part on the cellular connectivity event information. An indication of the closest cellular service availability location may be presented via one or more user interface elements. The closet cellular service availability location may be different than a most recent cellular service availability location.

公开(公告)号：US20230397095A1

公开(公告)日：2023-12-07

申请号：US17830194

申请日：2022-06-01

Applicant: Apple Inc.

Inventor： Bharath Jayaram ,  Ajoy K. Singh ,  Vijay Gadde ,  Sharad Garg ,  Vijay Venkataraman ,  Sandeep K. Sunkesala ,  Sanjeevi Balasubramanian ,  Vijendrakumar K. Ashiwal

IPC: H04W48/18 ,  H04W24/08 ,  H04W8/18

CPC classification number: H04W48/18 ,  H04W24/08 ,  H04W8/18

Abstract: A device executing a low-latency application that uses a Wi-Fi link may switch from the Wi-Fi link to using a second link to a multi-subscriber (MSIM) PHS device. The device may access, via the second link, any one of multiple cellular links, each cellular link corresponding to a different respective cellular subscription of multiple subscriptions used by the PHS device. The application executing on the device may thus use a preferred cellular link from among the multiple cellular links. The preferred cellular link may be determined based on parameters corresponding to the plurality of cellular links for each respective cellular subscription. The parameters may be obtained from a location database. The preferred cellular link (which may presently correspond to a primary subscription) on the PHS device may be switched to be a different cellular link (which may correspond to a non-primary subscription) during execution of the application on the device.

公开(公告)号：US11812312B2

公开(公告)日：2023-11-07

申请号：US15096138

申请日：2016-04-11

Applicant: Apple Inc.

Inventor： David Boettger ,  Tarik Tabet ,  Samy Khay-Ibbat ,  Farouk Belghoul ,  Ajoy K. Singh ,  Thanigaivelu Elangovan ,  Rafael L. Rivera-Barreto

IPC: H04W28/02 ,  H04W36/00 ,  H04W88/06 ,  H04W36/24 ,  H04W72/12 ,  H04W72/542

CPC classification number: H04W36/0066 ,  H04W36/0022 ,  H04W36/24 ,  H04W72/1221 ,  H04W72/542 ,  H04W88/06

Abstract: Wireless devices, networks and methods may operate to have a wireless device cause a base station to trigger voice call continuity handovers responsive to the quality of the cellular radio link in addition to the base station triggering such handovers based on location or mobility. Furthermore, wireless communication devices may also perform monitoring of multiple buffers operating within the wireless communication device and associated with different respective communication layers, in addition to monitoring the quality of the cellular radio link, to perform intelligent dropping/discarding and/or scheduling of packets at the wireless communications device. Any one or more of these features may improve the ability of the wireless communications device to achieve stated Voice over Long Term Evolution (VoLTE) performance benchmarks in the context of the realities of current VoLTE networks.

公开(公告)号：US11582669B2

公开(公告)日：2023-02-14

申请号：US14867371

申请日：2015-09-28

Applicant: Apple Inc.

Inventor： Ajoy K. Singh ,  Wen Zhao

IPC: H04W36/30 ,  H04W88/06 ,  H04W36/00 ,  H04W48/02

Abstract: Techniques are disclosed relating to a mobile device that initiates handovers from short-range networks to long-range networks. In various embodiments, a mobile device includes one or more radios that communicate using a plurality of radio access technologies (RATs) including a cellular RAT and a short-range RAT. In such an embodiment, the mobile device stores an indication that the cellular RAT is a preferred RAT for a communication session. The mobile may establish the communication session using the preferred RAT, and in response to determining that a quality of the preferred RAT fails to satisfy a set of quality criteria, may request that the communication session use the short-range RAT. In some embodiments, the mobile device analyzes average packet error rate for the communication session and in response to the average packet error rate satisfying a threshold, requests that the communication session use the cellular RAT.

公开(公告)号：US20210392548A1

公开(公告)日：2021-12-16

申请号：US16902095

申请日：2020-06-15

Applicant: Apple Inc.

Inventor： Raghuveer Mallikarjunan ,  Madhusudan Chaudary ,  Faraz Faheem ,  Rajesh Ambati ,  Ajay Singh ,  Muhammad A. Alam ,  Muthukumaran Dhanapal ,  Geoffrey R. Hall ,  Franco Travostino ,  Thanigaivelu Elangovan ,  Lakshmi N. Kavuri ,  John Y. Su ,  Ajoy K. Singh ,  Punit H. Awatramani ,  Arun G. Mathias ,  Jordan B. Schneider ,  Roger N. Pantos ,  Alan Tseng

IPC: H04W28/20 ,  H04W28/02 ,  H04W24/08

Abstract: This disclosure relates to techniques for a wireless device to detect network bandwidth throttling and dynamically select a buffer threshold. The wireless device may establish a wireless link. Data for a downlink stream may be requested when an amount of buffered data for the stream is below a lower buffer threshold, received via the wireless link, and buffered. Data requests for the stream may be stopped when the amount of buffered data for the stream is above an upper buffer threshold. The upper buffer threshold may be selected based on characteristics of the wireless link and the stream. Throughput of the wireless link may also be monitored during multiple time windows, and the wireless device may determine whether the wireless link caps bandwidth below a bandwidth threshold based on the throughput monitoring.

公开(公告)号：US11051165B2

公开(公告)日：2021-06-29

申请号：US16384733

申请日：2019-04-15

Applicant: Apple Inc.

Inventor： Krisztian Kiss ,  Thomas F. Pauly ,  Ajoy K. Singh ,  Rohan C. Malthankar ,  Vikram Bhaskara Yerrabommanahalli ,  Rafael L. Rivera-Barreto

IPC: H04W12/06 ,  H04L29/06 ,  H04W12/069

Abstract: Apparatus and methods to support authentication failure handling by network elements and by a wireless communication device when attempting access to services through non-cellular wireless networks by the wireless communication device are disclosed. Error messages received from evolved packet core (EPC) network elements, such as an authentication, authorization, and accounting (AAA) server, are mapped to failure messages provided to wireless communication devices by internetworking equipment, such as an evolved packet data gateway (ePDG). The wireless communication device determines a failures cause based on the failure messages and disallows retry attempts until select criteria are satisfied.

公开(公告)号：US10993279B2

公开(公告)日：2021-04-27

申请号：US16663437

申请日：2019-10-25

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Ajoy K. Singh ,  Sarma V. Vangala ,  Vinay R. Majjigi ,  Samy Khay-Ibbat

IPC: H04W76/28

Abstract: This disclosure relates to techniques for adaptive C-DRX Management. A wireless device and a cellular base station may establish a cellular link. According to some embodiments, the base station may monitor upcoming traffic with the wireless device. Based at least in part on the upcoming traffic for the wireless device, the base station may provide a command indicating to the wireless device to enter C-DRX. The command may further indicate to the wireless device a number of C-DRX cycles through which to remain in a low power state.

公开(公告)号：US10602483B2

公开(公告)日：2020-03-24

申请号：US14870395

申请日：2015-09-30

Applicant: Apple Inc.

Inventor： Ajoy K. Singh ,  Paul V. Flynn ,  Syed Aon Mujtaba ,  Vinay R. Majjigi ,  Wen Zhao ,  Xiaowen Wang

IPC: H04W68/12 ,  H04W60/00 ,  H04W88/06 ,  H04W36/14 ,  H04L29/12 ,  H04W8/04 ,  H04W76/16

Abstract: Embodiments relate to apparatus, systems, and methods for reception of calls on a mobile device that includes Wi-Fi and cellular radios. The mobile device may be configured to establish communication on a Wi-Fi network with a cellular carrier. The mobile device may further be configured to register a first IP address with an IMS server for the Wi-Fi network communication and register a second IP address with the IMS server for the cellular network communication (or register different ports of a single IP address with Wi-Fi and cellular). Upon occurrence of a mobile terminating call from the cellular carrier, the mobile device may receive an incoming call notification on one or both of the Wi-Fi network using the first IP address and the cellular network using the second IP address.

公开(公告)号：US20200084723A1

公开(公告)日：2020-03-12

申请号：US16682343

申请日：2019-11-13

Applicant: Apple Inc.

Inventor： Ajoy K. Singh ,  Jared S. Grubb ,  Madhusudan Chaudhary ,  Saran Krishnaswamy ,  Jesus A. Gutierrez Gomez ,  Sirisha Pillalamarri ,  Samuel J. Miller ,  Rohan C. Malthankar ,  Sergey Sitnikov ,  Ziv Wolkowicki ,  Dimitrios Prodanos ,  Andreas E. Schobel ,  Christopher P. Saari ,  Keith W. Rauenbuehler ,  Rafael L. Rivera-Barreto ,  Najeeb M. Abdulrahiman

IPC: H04W52/02 ,  H04W4/90 ,  H04W4/02

Abstract: This disclosure relates to dynamic baseband management for a wireless device. The wireless device may be an accessory device. The accessory device may determine whether it has a short-range wireless communication link with a companion device. The accessory device may determine one or more proximity metrics relating to the companion device. The accessory device may further determine one or more metrics associated with user settings, user activity and/or application activity at the wireless device. The wireless device may select a (e.g., full, limited, or off) baseband operating mode based on any or all of these considerations.