公开(公告)号：US10531507B2

公开(公告)日：2020-01-07

申请号：US15889599

申请日：2018-02-06

Applicant: APPLE INC.

Inventor： Srinivas Burugupalli ,  Vijay Kumar Ramamurthi ,  Vijay Venkataraman

IPC: H04W76/15 ,  H04W24/10 ,  H04W24/02 ,  H04W88/06

Abstract: A device, system, and method estimate a link budget on a companion device. The method is performed at a first device connecting to a second device over a first connection and a network over a second connection, the second device connecting to the network over a third connection. The method includes receiving initiating data from the second device based on radio conditions associated with the third connection. The method includes, when the first device disconnects from the second device and establishes the second connection, determining an initial network metric value based on the initiating data that is used to estimate radio conditions associated with the second connection. The method includes selecting a data exchange mode of the first device based on the initial network metric value which is used until a further network metric is determined by the first device.

公开(公告)号：US10334611B2

公开(公告)日：2019-06-25

申请号：US15612726

申请日：2017-06-02

Applicant: APPLE INC.

Inventor： Vijay Kumar Ramamurthi ,  Vijay Venkataraman ,  Swaminathan Balakrishnan ,  Tarik Tabet ,  Sarma Vangala ,  Sree Ram Kodali ,  Rafael Rivera-Barreto ,  Samy Khay-Ibbat

IPC: H04B17/309 ,  H04W52/36 ,  H04W52/24 ,  H04W72/08 ,  H04L5/00

Abstract: Described is a user equipment (UE) that is connected to a network component, the user equipment and the network component configured with a carrier aggregation functionality. The UE performs a method that includes determining a primary component carrier and at least one secondary component carrier associated with the carrier aggregation functionality of the user equipment, determining a component carrier quality measurement (CQM) metric for each of the component carriers, when an uplink data packet is capable of being transmitted over the secondary component carrier, selecting one of the primary component carrier and the at least one secondary component carrier based on the CQM metrics, generating measurement data indicative of the selected component carrier to increase a probability to transmit the uplink data packet over the selected component carrier and transmitting the measurement data to the network component.

公开(公告)号：US20190132876A1

公开(公告)日：2019-05-02

申请号：US16144507

申请日：2018-09-27

Applicant: Apple Inc.

Inventor： Murtaza A. Shikari ,  Hariharan Sukumar ,  An Chan ,  Srirang A. Lovlekar ,  Vijay Venkataraman ,  Srinivas Burugupalli ,  Srinivasan Nimmala

IPC: H04W74/08 ,  H04W16/14 ,  H04W72/10 ,  H04W72/04

Abstract: This disclosure relates to providing coexistence features for cellular communication in unlicensed spectrum. A wireless device may communicate with a cellular base station in accordance with an original communication configuration. The wireless device may determine that a communication activity is occurring at the wireless device that has a duration longer than a duration threshold. The wireless device may provide an indication to the cellular base station to modify the communication configuration with respect to operation in an unlicensed frequency band based at least in part on determining that a communication activity is occurring at the wireless device that has a duration longer than the duration threshold. The wireless device may communicate with the cellular base station in accordance with a modified communication configuration.

公开(公告)号：US20190132725A1

公开(公告)日：2019-05-02

申请号：US16001393

申请日：2018-06-06

Applicant: APPLE INC.

Inventor： Sriram Venkataramanan ,  Lakshmi N. Kavuri ,  Vijay Venkataraman ,  Sai Kiran Gummuluri ,  Yifan Zhu

IPC: H04W8/06 ,  H04W48/16 ,  H04W24/08

Abstract: A method performed by a user equipment (UE) connected to a first home cell of a home public land mobile network (HPLMN). The method includes determining a type of the first home cell, when the type is a first type, determining a first quality of the connection to the first home cell, in response to the first quality not satisfying a first predetermined threshold or a determination that the type is a second type, disconnecting from the HPLMN, connecting to a first visited cell of a visited public land mobile network (VPLMN), determining a second quality of the connection to the first visited cell and when the second quality of the connection to the first visited cell is above a second predetermined threshold, performing a data exchange via the first visited cell.

公开(公告)号：US10111154B1

公开(公告)日：2018-10-23

申请号：US15701722

申请日：2017-09-12

Applicant: Apple Inc.

Inventor： Sundarraman Balasubramanian ,  Nordine Kadri ,  Omar Ali ,  Vijay Venkataraman

IPC: H04W48/02 ,  H04W48/16

Abstract: Techniques are disclosed relating to a mobile device blacklisting certain wireless cells. The device may refrain from considering blacklisted cells for cell operations such as reselection and handover. The device may blacklist cells that fail selection criteria or system information decoding. In some embodiments, the device is configured to manage inclusion of cells on the blacklist based on whether the cells are part of a home network (e.g., an HPLMN) for the mobile device. The device may delete cells that are part of the home network from the blacklist after an out-of-service event or may refrain from adding cells from the home network to the blacklist after certain failures, for example. In various embodiments the disclosed techniques may avoid blacklisting desirable cells in certain scenarios while still enabling blacklist functionality. This may improve wireless performance and battery life, for example.

公开(公告)号：US12289797B2

公开(公告)日：2025-04-29

申请号：US17656216

申请日：2022-03-23

Applicant: Apple Inc.

Inventor： Rohit R. Matolia ,  Alosious Pradeep Prabhakar ,  Vijay Venkataraman

IPC: H04W4/60 ,  H04W4/50 ,  H04W8/18 ,  H04W36/06 ,  H04W48/18 ,  H04W60/04 ,  H04W80/02 ,  H04W88/06

Abstract: Embodiments described herein relate to wireless communications, including methods and apparatus for dynamically selecting subscriber identity module (SIM) profiles, electronic SIM (eSIM) profiles, multi-SIM operating modes, and/or wireless access networks for network slice based applications of wireless devices. A wireless device can include at least two SIM/eSIM profiles and switch use of SIM/eSIM profiles, change between dual SIM operating modes, and/or select a registration mode based on requirements of one or more applications in use and availability of network slices via different wireless networks.

公开(公告)号：US12279152B2

公开(公告)日：2025-04-15

申请号：US17890408

申请日：2022-08-18

Applicant: Apple Inc.

Inventor： Abhishek Anand Konda ,  Bobby Jose ,  Vijay Venkataraman

IPC: H04W28/02

Abstract: Systems, methods, and circuitries are provided for using an application Layer 2 buffer for reordering out of sequence (OOS) packets when possible to reduce an amount of memory allocated to a baseband (BB) Layer 2 (L2) buffer. In one example, a baseband circuitry of a user equipment (UE), includes BB memory, configured as a BB L2 buffer and one or more BB processors. The BB processors are configured to receive an OOS packet from a physical layer; and in response to an APP L2 buffer status indicating at least a first amount of memory is available, send the OOS packet to APP circuitry for storing in an APP L2 buffer.

公开(公告)号：US12273773B2

公开(公告)日：2025-04-08

申请号：US17316568

申请日：2021-05-10

Applicant: Apple Inc.

Inventor： Alosious Pradeep Prabhakar ,  Krisztian Kiss ,  Rohit R. Matolia ,  Vijay Venkataraman

IPC: H04W28/22 ,  H04W28/02 ,  H04W28/24

Abstract: Several techniques using a network slice quota (NSQ) management function provide dynamic adjustment in order to meet the limitation of data rate per network slice in the uplink and downlink wireless connections in a wireless network. In one technique, when the limit is reached, the session aggregated maximum bit rates (AMBR) per subscription level is adjusted in proportionate ratio of the maximum bit rate per subscription level per user equipment (UE). In another technique, when the limit is reached, there is a proportionate equivalent increment and decrement of session AMBR based on usage patterns of the subscription levels. In a further technique, when the limit is reached, there is a proportionate equivalent increment and decrement of slice resources based on usage patterns. In yet another technique, a quota update is attempted using the Unified Data Repository (UDR).

公开(公告)号：US20250063425A1

公开(公告)日：2025-02-20

申请号：US18771113

申请日：2024-07-12

Applicant: Apple Inc.

Inventor： Vishwanth Kamala Govindaraju ,  Sriram Subramanian ,  Alosious Pradeep Prabhakar ,  Vijendrakumar K Ashiwal ,  Vijay Venkataraman ,  Shiva Krishna Narra ,  Sanjeevi Balasubramanian

IPC: H04W28/02

Abstract: A cellular communications system may include a user equipment (UE) that executes a target and non-target applications. The UE may convey a first stream of non-quality-of-service (QoS) wireless data with a first external device over a first Transmission Control Protocol (TCP) session and may receive a second stream of non-QoS wireless data from a second external device over a second TCP session. Responsive to a drop in data rate of the first stream, the UE may perform mitigation operations that adjust receipt of the second stream to boost the data rate of the first stream. The mitigation operations may include transmission of a triple duplicate acknowledgement (TDA), delayed transmission of an acknowledgment (ACK) to the second stream, and/or terminating the second TCP session. This may prevent disruptions to user experience with the first software application even when the network has downlink data to transmit to the UE.

公开(公告)号：US12171038B2

公开(公告)日：2024-12-17

申请号：US18464076

申请日：2023-09-08

Applicant: Apple Inc.

Inventor： Sethuraman Gurumoorthy ,  Srirang A Lovlekar ,  Murtaza A. Shikari ,  Srinivasan Nimmala ,  Haijing Hu ,  Fangli Xu ,  Yuqin Chen ,  Longda Xing ,  Xu Ou ,  Li Su ,  Vijay Venkataraman ,  Dawei Zhang ,  Muthukumaran Dhanapal ,  Sree Ram Kodali ,  Srinivas Burugupalli

IPC: H04W76/27 ,  H04W76/28 ,  H04W76/38

Abstract: This disclosure relates to performing implicit radio resource control state transitions in a cellular communication system. A wireless device may establish a radio resource control (RRC) connection with a cellular base station. A data inactivity timer length and a target RRC state for implicit RRC transitions may be determined. A data inactivity timer having the determined data inactivity timer length may be initiated. It may be determined that the data inactivity timer has expired. The wireless device may transition to the target RRC state based at least in part on determining that the data inactivity timer has expired.