Patents by Inventor Viswanath Nagarajan

Viswanath Nagarajan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11963060
    Abstract: Techniques are disclosed relating to handover of WLAN voice calls to one or more cellular networks. In some embodiments, a device is configured to perform voice communications over one or more wireless local area networks, communicate with a first network using a first cellular radio access technology (RAT), and communicate with a second network using a second cellular RAT. The device may store, based on communications via the first network, information indicating that the first network does not support voice communications for the apparatus. The device may handover a voice call from a wireless local network directly to the second cellular RAT, based on the stored information and without handover of the voice call to the first cellular RAT, based on call conditions on the wireless local area network.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: April 16, 2024
    Assignee: Apple Inc.
    Inventors: Yifan Zhu, Vijay Venkataraman, Viswanath Nagarajan, Sang Ho Baek, Lakshmi N. Kavuri, Utkarsh Kumar, Krisztian Kiss, Shivani Suresh Babu, Srinivasan Nimmala
  • Publication number: 20230397266
    Abstract: This disclosure relates to techniques for a wireless device to determine whether to display an indicator of millimeter wave cellular availability. A wireless device may establish a radio resource control connection that includes connectivity with a fifth generation new radio millimeter wave cell. The wireless device may determine to display an indication of millimeter wave cell availability. The wireless device may determine location status information and motion status information for the wireless device. The wireless device may determine when to cease displaying the indication of millimeter wave cell availability after the radio resource control connection is released or the millimeter wave cell is deconfigured based at least in part on the location status information for the wireless device and the motion status information for the wireless device.
    Type: Application
    Filed: August 10, 2023
    Publication date: December 7, 2023
    Inventors: Shivani Suresh Babu, Arun G. Mathias, Rajesh Ambati, Thanigaivelu Elangovan, Ajay Singh, Raghuveer Mallikarjunan, Rohan C. Malthankar, Vikram B. Yerrabommanahalli, Chandiramohan Vasudevan, Juergen H. Kreuchauf, Harshit Chuttani, Punit H. Awatramani, Swapna V. Iyer, Lakshmi N. Kavuri, Muthukumaran Dhanapal, Kanuganti Rajeswar Reddy, Viswanath Nagarajan, Navjot Thakral
  • Patent number: 11812333
    Abstract: A device and method for a user equipment (UE) to implement power savings mechanisms when operating within a significant location. The UE identifies that the UE is at a significant location. The significant location is a location relative to a currently camped cell of a network. At a first time and at the significant location, the UE performs a type of operation related to the network connection. The UE stores information corresponding to the performance of the type of operation at the first time in a profile associated with the significant location. At a second time and at the significant location, the UE performs the type of operation related to the network connection. The performance of the type of operation at the second time is modified based on the information stored in the profile associated with the significant location.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: November 7, 2023
    Assignee: Apple Inc.
    Inventors: Srirang A. Lovlekar, Murtaza A. Shikari, Zheng Lu, Pankaj Subhash Vasandani, Srinivasan Nimmala, Sethuraman Gurumoorthy, Viswanath Nagarajan, Lakshmi N. Kavuri, Sridhar Prakasam, Robert K. Kitchens, Vijay Venkataraman, Muthukumaran Dhanapal, Xiangpeng Jing
  • Patent number: 11770862
    Abstract: This disclosure relates to techniques for a wireless device to determine whether to display an indicator of millimeter wave cellular availability. A wireless device may establish a radio resource control connection that includes connectivity with a fifth generation new radio millimeter wave cell. The wireless device may determine to display an indication of millimeter wave cell availability. The wireless device may determine location status information and motion status information for the wireless device. The wireless device may determine when to cease displaying the indication of millimeter wave cell availability after the radio resource control connection is released or the millimeter wave cell is deconfigured based at least in part on the location status information for the wireless device and the motion status information for the wireless device.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: September 26, 2023
    Assignee: Apple Inc.
    Inventors: Shivani Suresh Babu, Arun G. Mathias, Rajesh Ambati, Thanigaivelu Elangovan, Ajay Singh, Raghuveer Mallikarjunan, Rohan C. Malthankar, Vikram B. Yerrabommanahalli, Chandiramohan Vasudevan, Juergen H. Kreuchauf, Harshit Chuttani, Punit H. Awatramani, Swapna V. Iyer, Lakshmi N. Kavuri, Muthukumaran Dhanapal, Kanuganti Rajeswar Reddy, Viswanath Nagarajan, Navjot Thakral
  • Publication number: 20230300947
    Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform methods for enhancement of multi-SIM devices, such as UE 106. A network may increase paging retries for known MU-SIM devices, e.g., based on an indication of capabilities from a MU-SIM device. The indication may be via a NAS registration request, an RRC capability procedure, and/or an RRC UE assistance procedure. Additionally, a network may include an indication of a paging priority to the UE. The UE may then determine a response to the page based, at least in part, on the indicated priority. Further, the UE may indicate a tune-away to the network. The indication of the tune-away may include a cause and/or duration for the tune-away and may be provided at an RRC level or a network access stratum (NAS) level.
    Type: Application
    Filed: May 30, 2023
    Publication date: September 21, 2023
    Inventors: Lakshmi N. Kavuri, Alosious Pradeep Prabhakar, Krisztian Kiss, Muthukumaran Dhanapal, Sang Ho Baek, Shivani Suresh Babu, Srinivasan Nimmala, Utkarsh Kumar, Vijay Venkataraman, Viswanath Nagarajan, Yifan Zhu
  • Patent number: 11706840
    Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform methods for enhancement of multi-SIM devices, such as UE 106. A network may increase paging retries for known MU-SIM devices, e.g., based on an indication of capabilities from a MU-SIM device. The indication may be via a NAS registration request, an RRC capability procedure, and/or an RRC UE assistance procedure. Additionally, a network may include an indication of a paging priority to the UE. The UE may then determine a response to the page based, at least in part, on the indicated priority. Further, the UE may indicate a tune-away to the network. The indication of the tune-away may include a cause and/or duration for the tune-away and may be provided at an RRC level or a network access stratum (NAS) level.
    Type: Grant
    Filed: January 18, 2022
    Date of Patent: July 18, 2023
    Assignee: Apple Inc.
    Inventors: Lakshmi N. Kavuri, Alosious Pradeep Prabhakar, Krisztian Kiss, Muthukumaran Dhanapal, Sang Ho Baek, Shivani Suresh Babu, Srinivasan Nimmala, Utkarsh Kumar, Vijay Venkataraman, Viswanath Nagarajan, Yifan Zhu
  • Patent number: 11595860
    Abstract: An accessory device may dynamically determine to transition a cellular connection between mobile-initiated communication only (MICO) mode and non-MICO mode based on a variety of factors. The accessory device may be configured to communicate through a non-cellular network in addition to the cellular network. The accessory device may transition from MICO to non-MICO mode based on one or more of: loss of the non-cellular connection; location of the accessory device; a call, data, or SMS request failure over the non-cellular network; or other factors.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: February 28, 2023
    Assignee: Apple Inc.
    Inventors: Krisztian Kiss, Lakshmi N. Kavuri, Srinivasan Nimmala, Utkarsh Kumar, Viswanath Nagarajan
  • Publication number: 20230023828
    Abstract: Techniques are disclosed relating to handover of WLAN voice calls to one or more cellular networks. In some embodiments, a device is configured to perform voice communications over one or more wireless local area networks, communicate with a first network using a first cellular radio access technology (RAT), and communicate with a second network using a second cellular RAT. The device may store, based on communications via the first network, information indicating that the first network does not support voice communications for the apparatus. The device may handover a voice call from a wireless local network directly to the second cellular RAT, based on the stored information and without handover of the voice call to the first cellular RAT, based on call conditions on the wireless local area network.
    Type: Application
    Filed: October 4, 2022
    Publication date: January 26, 2023
    Inventors: Yifan Zhu, Vijay Venkataraman, Viswanath Nagarajan, Sang Ho Baek, Lakshmi N. Kavuri, Utkarsh Kumar, Krisztian Kiss, Shivani Suresh Babu, Srinivasan Nimmala
  • Patent number: 11528679
    Abstract: Apparatuses, systems, and methods for a wireless device to perform methods for de-registration of the wireless device from a first access type over a second access type. Methods also include procedures for maintaining state machines associated with both access types as well as procedures to determine a connection for re-transmitting a de-registration request and to avoid collisions between procedures associated with the first and second access types. Further, methods include an information element configured to indicate which access type has been de-registered.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: December 13, 2022
    Assignee: Apple Inc.
    Inventors: Vijay Venkataraman, Krisztian Kiss, Lakshmi N. Kavuri, Sang Ho Baek, Shivani Suresh Babu, Utkarsh Kumar, Viswanath Nagarajan, Yifan Zhu, Hariharan Sukumar
  • Patent number: 11503527
    Abstract: Techniques are disclosed relating to handover of WLAN voice calls to one or more cellular networks. In some embodiments, a device is configured to perform voice communications over one or more wireless local area networks, communicate with a first network using a first cellular radio access technology (RAT), and communicate with a second network using a second cellular RAT. The device may store, based on communications via the first network, information indicating that the first network does not support voice communications for the apparatus. The device may handover a voice call from a wireless local network directly to the second cellular RAT, based on the stored information and without handover of the voice call to the first cellular RAT, based on call conditions on the wireless local area network.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: November 15, 2022
    Assignee: Apple Inc.
    Inventors: Yifan Zhu, Vijay Venkataraman, Viswanath Nagarajan, Sang Ho Baek, Lakshmi N. Kavuri, Utkarsh Kumar, Krisztian Kiss, Shivani Suresh Babu, Srinivasan Nimmala
  • Publication number: 20220337970
    Abstract: A device and method for a user equipment (UE) to implement power savings mechanisms when operating within a significant location. The UE identifies that the UE is at a significant location. The significant location is a location relative to a currently camped cell of a network. At a first time and at the significant location, the UE performs a type of operation related to the network connection. The UE stores information corresponding to the performance of the type of operation at the first time in a profile associated with the significant location. At a second time and at the significant location, the UE performs the type of operation related to the network connection. The performance of the type of operation at the second time is modified based on the information stored in the profile associated with the significant location.
    Type: Application
    Filed: May 12, 2022
    Publication date: October 20, 2022
    Inventors: Srirang A. LOVLEKAR, Murtaza A. SHIKARI, Zheng LU, Pankaj Subhash VASANDANI, Srinivasan NIMMALA, Sethuraman GURUMOORTHY, Viswanath NAGARAJAN, Lakshmi N. KAVURI, Sridhar PRAKASAM, Robert K. KITCHENS, Vijay VENKATARAMAN, Muthukumaran DHANAPAL, Xiangpeng JING
  • Patent number: 11343640
    Abstract: A device and method for a user equipment (UE) to implement power savings mechanisms when operating within a significant location. The UE identifies that the UE is at a significant location. The significant location is a location relative to a currently camped cell of a network. At a first time and at the significant location, the UE performs a type of operation related to the network connection. The UE stores information corresponding to the performance of the type of operation at the first time in a profile associated with the significant location. At a second time and at the significant location, the UE performs the type of operation related to the network connection. The performance of the type of operation at the second time is modified based on the information stored in the profile associated with the significant location.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: May 24, 2022
    Assignee: Apple Inc.
    Inventors: Srirang A. Lovlekar, Murtaza A. Shikari, Zheng Lu, Pankaj Subhash Vasandani, Srinivasan Nimmala, Sethuraman Gurumoorthy, Viswanath Nagarajan, Lakshmi N. Kavuri, Sridhar Prakasam, Robert K. Kitchens, Vijay Venkataraman, Muthukumaran Dhanapal, Xiangpeng Jing
  • Publication number: 20220141920
    Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform methods for enhancement of multi-SIM devices, such as UE 106. A network may increase paging retries for known MU-SIM devices, e.g., based on an indication of capabilities from a MU-SIM device. The indication may be via a NAS registration request, an RRC capability procedure, and/or an RRC UE assistance procedure. Additionally, a network may include an indication of a paging priority to the UE. The UE may then determine a response to the page based, at least in part, on the indicated priority. Further, the UE may indicate a tune-away to the network. The indication of the tune-away may include a cause and/or duration for the tune-away and may be provided at an RRC level or a network access stratum (NAS) level.
    Type: Application
    Filed: January 18, 2022
    Publication date: May 5, 2022
    Inventors: Lakshmi N. Kavuri, Alosious Pradeep Prabhakar, Krisztian Kiss, Muthukumaran Dhanapal, Sang Ho Baek, Shivani Suresh Babu, Srinivasan Nimmala, Utkarsh Kumar, Vijay Venkataraman, Viswanath Nagarajan, Yifan Zhu
  • Patent number: 11284318
    Abstract: Apparatuses, systems, and methods for user equipment (UE) devices to perform more efficient frequency scans for potential base stations. According to techniques described herein, the UE may determine that it does not have cellular service and determine first information based on a last camped cell. A time period during which the first information was acquired may be determined and one or more frequency scans may be performed. The frequency scans may be limited to a set of frequencies based in part on the time period. Thus, if the time period is less than a first value, the set of frequencies may include a first set of frequencies and if the time period is greater than the first value but less than a second value, the set of frequencies may include the first set of frequencies and a second set of frequencies.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: March 22, 2022
    Assignee: Apple Inc.
    Inventors: Jianxiong Shi, Lakshmi N. Kavuri, Madhusudan Chaudhary, Thanigaivelu Elangovan, Viswanath Nagarajan, Yifan Zhu
  • Patent number: 11252787
    Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform methods for enhancement of multi-SIM devices, such as UE 106. A network may increase paging retries for known MU-SIM devices, e.g., based on an indication of capabilities from a MU-SIM device. The indication may be via a NAS registration request, an RRC capability procedure, and/or an RRC UE assistance procedure. Additionally, a network may include an indication of a paging priority to the UE. The UE may then determine a response to the page based, at least in part, on the indicated priority. Further, the UE may indicate a tune-away to the network. The indication of the tune-away may include a cause and/or duration for the tune-away and may be provided at an RRC level or a network access stratum (NAS) level.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: February 15, 2022
    Assignee: Apple Inc.
    Inventors: Lakshmi N. Kavuri, Alosious Pradeep Prabhakar, Krisztian Kiss, Muthukumaran Dhanapal, Sang Ho Baek, Shivani Suresh Babu, Srinivasan Nimmala, Utkarsh Kumar, Vijay Venkataraman, Viswanath Nagarajan, Yifan Zhu
  • Publication number: 20210410205
    Abstract: This disclosure relates to techniques for a wireless device to determine whether to display an indicator of millimeter wave cellular availability. A wireless device may establish a radio resource control connection that includes connectivity with a fifth generation new radio millimeter wave cell. The wireless device may determine to display an indication of millimeter wave cell availability. The wireless device may determine location status information and motion status information for the wireless device. The wireless device may determine when to cease displaying the indication of millimeter wave cell availability after the radio resource control connection is released or the millimeter wave cell is deconfigured based at least in part on the location status information for the wireless device and the motion status information for the wireless device.
    Type: Application
    Filed: June 29, 2021
    Publication date: December 30, 2021
    Inventors: Shivani Suresh Babu, Arun G. Mathias, Rajesh Ambati, Thanigaivelu Elangovan, Ajay Singh, Raghuveer Mallikarjunan, Rohan C. Malthankar, Vikram B. Yerrabommanahalli, Chandiramohan Vasudevan, Juergen H. Kreuchauf, Harshit Chuttani, Punit H. Awatramani, Swapna V. Iyer, Lakshmi N. Kavuri, Muthukumaran Dhanapal, Kanuganti Rajeswar Reddy, Viswanath Nagarajan, Navjot Thakral
  • Publication number: 20210195472
    Abstract: An accessory device may dynamically determine to transition a cellular connection between mobile-initiated communication only (MICO) mode and non-MICO mode based on a variety of factors. The accessory device may be configured to communicate through a non-cellular network in addition to the cellular network. The accessory device may transition from MICO to non-MICO mode based on one or more of: loss of the non-cellular connection; location of the accessory device; a call, data, or SMS request failure over the non-cellular network; or other factors.
    Type: Application
    Filed: March 9, 2021
    Publication date: June 24, 2021
    Inventors: Krisztian Kiss, Lakshmi N. Kavuri, Srinivasan Nimmala, Utkarsh Kumar, Viswanath Nagarajan
  • Publication number: 20210160809
    Abstract: Apparatuses, systems, and methods for a wireless device to perform methods for de-registration of the wireless device from a first access type over a second access type. Methods also include procedures for maintaining state machines associated with both access types as well as procedures to determine a connection for re-transmitting a de-registration request and to avoid collisions between procedures associated with the first and second access types. Further, methods include an information element configured to indicate which access type has been de-registered.
    Type: Application
    Filed: February 1, 2021
    Publication date: May 27, 2021
    Inventors: Vijay Venkataraman, Krisztian Kiss, Lakshmi N. Kavuri, Sang Ho Baek, Shivani Suresh Babu, Utkarsh Kumar, Viswanath Nagarajan, Yifan Zhu, Hariharan Sukumar
  • Patent number: 10993186
    Abstract: This disclosure relates to energy budgeted cellular service recovery techniques. A wireless device may determine one or more energy budgets for service recovery. It may be determined that cellular service loss is currently occurring. Cellular service recovery may be attempted, where service recovery scan timing for the attempt to recover cellular service is determined based at least in part on the one or more energy budgets for service recovery.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: April 27, 2021
    Assignee: Apple Inc.
    Inventors: Viswanath Nagarajan, Lakshmi N. Kavuri, Srinivasan Nimmala, Swapna V. Iyer, Sindhu Sivasankaran Nair, Sunny Arora, Jianxiong Shi, Sami M. Almalfouh
  • Patent number: 10979939
    Abstract: An accessory device may dynamically determine to transition a cellular connection between mobile-initiated communication only (MICO) mode and non-MICO mode based on a variety of factors. The accessory device may be configured to communicate through a non-cellular network in addition to the cellular network. The accessory device may transition from MICO to non-MICO mode based on one or more of: loss of the non-cellular connection; location of the accessory device; a call, data, or SMS request failure over the non-cellular network; or other factors.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: April 13, 2021
    Assignee: Apple Inc.
    Inventors: Krisztian Kiss, Lakshmi N. Kavuri, Srinivasan Nimmala, Utkarsh Kumar, Viswanath Nagarajan