Patents by Inventor Sergey Sitnikov

Sergey Sitnikov 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: 12075326
    Abstract: Apparatuses, systems, and methods for enhancement of network slicing for a UE. A UE may receive, from an AMF of a network, application related information associated with network slice data routing for data associated with an application. The information may be provided to the network by network slice customers. The UE may, in response to application initiation, determine traffic routing for data associated with the application. Traffic routing may be based on the application related information and a UE configuration associated with user privacy (e.g., user privacy setting) associated with the application. When the user UE configuration is enabled, the data may be routed via a default network slice and when the UE configuration is disabled, the data may be routed via a network slice indicated by the application related information. The UE configuration may be indicated by the application via a Boolean flag and/or via a user interface setting.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: August 27, 2024
    Assignee: Apple Inc.
    Inventors: Sree Ram Kodali, Ahmed M. Soliman, Christian W. Mucke, Huarui Liang, Oleg M. Moskalenko, Rafael L. Rivera-Barreto, Sergey Sitnikov, Teck Yang Lee
  • Patent number: 11889589
    Abstract: A communications network may be used to convey Short Message Service (SMS) messages using the Internet Protocol (IP). User equipment may transmit an SMS-over-IP Session Initiation Protocol (SIP) message to wireless equipment over a high-bandwidth communications link. The wireless equipment may route the SMS-over-IP SIP message to the ePDG. When the high-bandwidth link is unavailable, the user equipment may transmit a compressed message to the proxy server over a low-bandwidth communications link. The proxy server may convert the compressed message into an SMS-over-IP SIP message that is transmitted to the ePDG. The proxy server may serve as a proxy for the first user equipment from the perspective of the ePDG. This may allow SMS message data to continue to be conveyed through the communications network even when the high-bandwidth communications link becomes unavailable.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: January 30, 2024
    Assignee: Apple Inc.
    Inventors: Gahima S. Mbonye, Daniel P. Ellis, Gregory R. Nelson, Prashant H. Vashi, Sergey Sitnikov, Vikram B. Yerrabommanahalli
  • Publication number: 20240007956
    Abstract: Apparatuses, systems, and methods for application aware cellular radio activation/deactivation, e.g., in 5G NR systems and beyond. The UE may receive, while operating in a power savings mode in which a cellular modem of the UE is disabled, inputs associated with an application of the UE. The UE may determine, based on the inputs, to activate the cellular modem to support the application of the UE. The inputs may include an indication of an application state or status, an indication of an application category, an indication of a state or status of an AI assistant of the UE, an indication of whether an application is a session application, an indication of network assertions, an indication of proximity information, an indication of a WiFi state or a WiFi status, and/or indications associated with one or more timers.
    Type: Application
    Filed: July 1, 2022
    Publication date: January 4, 2024
    Inventors: Ajoy K, Singh, Forest A. Hill, Ajay Kumar S. Gupta, Prathyusha Pallerlamudi, Sergey Sitnikov, Vibhor Goyal, Thomas F. Pauly, Cezar Mihai Radu, Michael G. Voydanoff, Daniel D. Schucker, Howard Tsai, Giovanni M. Agnoli, Nagarani Chandika
  • Patent number: 11706679
    Abstract: Apparatuses, systems, and methods for high data mode operation in cellular networks. A UE may determine, for an interface to a high-speed cellular network, a categorization from a plurality of categorizations, determine availability of the high-speed cellular network, and select, based at least in part on the categorization and availability of the high-speed cellular network, the interface for a data connection to the high-speed cellular network. The categorization may be one of expensive or not expensive and/or one of a first level associated with a higher compression codec rate or a second level associated with a lower compression codec rate. The UE may receive, from one of the a low-speed cellular network or the high-speed cellular network, carrier plan information for a cellular data service carrier and analyze the carrier plan information to determine desirability of a switch, e.g., from the low-speed cellular network to the high-speed cellular network.
    Type: Grant
    Filed: January 17, 2022
    Date of Patent: July 18, 2023
    Assignee: Apple Inc.
    Inventors: Raghuveer Mallikarjunan, Patrick L Coffman, Madhusudan Chaudhary, Muthukumaran Dhanapal, Ajay Singh, Faraz Faheem, Thanigaivelu Elangovan, Lakshmi N Kavuri, Samuel J Miller, Najeeb M Abdulrahiman, Rajesh Ambati, Arun G Mathias, Vivek Ramanna, Divyaprakash P Bhojkumar, Vikram B Yerrabommanahalli, Rafael L Rivera-Barreto, Sergey Sitnikov, Oleg M Moskalenko, Bao Q Ho, Rohan C Malthankar, Samy Touati
  • Publication number: 20230028723
    Abstract: A communications network may be used to convey Short Message Service (SMS) messages using the Internet Protocol (IP). User equipment may transmit an SMS-over-IP Session Initiation Protocol (SIP) message to wireless equipment over a high-bandwidth communications link. The wireless equipment may route the SMS-over-IP SIP message to the ePDG. When the high-bandwidth link is unavailable, the user equipment may transmit a compressed message to the proxy server over a low-bandwidth communications link. The proxy server may convert the compressed message into an SMS-over-IP SIP message that is transmitted to the ePDG. The proxy server may serve as a proxy for the first user equipment from the perspective of the ePDG. This may allow SMS message data to continue to be conveyed through the communications network even when the high-bandwidth communications link becomes unavailable.
    Type: Application
    Filed: September 30, 2022
    Publication date: January 26, 2023
    Inventors: Gahima S. Mbonye, Daniel P. Ellis, Gregory R. Nelson, Prashant H. Vashi, Sergey Sitnikov, Vikram B. Yerrabommanahalli
  • Patent number: 11553561
    Abstract: This disclosure relates to techniques for performing Wi-Fi authentication in a wireless communication system. Public key cryptography may be used to enhance the confidentiality of the user's permanent identity in transit. In some embodiments, a RSA-OAEP(SHA-256) encryption scheme may be used to protect the permanent identity when the EAP client needs to send the user's permanent identity to the server in the absence of pseudonym or fast re-authentication identity. In some embodiments, a server certificate is used to authenticate a iWLAN tunnel to protect an IMSI during setup of a Wi-Fi call. Using the methods described herein on both or either of the EAP client and server side may offer improved privacy protection.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: January 10, 2023
    Assignee: Apple Inc.
    Inventors: Rohan C. Malthankar, Paresh B. Sawant, Delziel J. Fernandes, Sergey Sitnikov, Arun G. Mathias, Jason A. Novak, Krisztian Kiss, Rafael L. Rivera-Barreto, Chandiramohan Vasudevan, Vladimir M. Appel
  • Patent number: 11464069
    Abstract: A communications network may be used to convey Short Message Service (SMS) messages using the Internet Protocol (IP). User equipment may transmit an SMS-over-IP Session Initiation Protocol (SIP) message to wireless equipment over a high-bandwidth communications link. The wireless equipment may route the SMS-over-IP SIP message to the ePDG. When the high-bandwidth link is unavailable, the user equipment may transmit a compressed message to the proxy server over a low-bandwidth communications link. The proxy server may convert the compressed message into an SMS-over-IP SIP message that is transmitted to the ePDG. The proxy server may serve as a proxy for the first user equipment from the perspective of the ePDG. This may allow SMS message data to continue to be conveyed through the communications network even when the high-bandwidth communications link becomes unavailable.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: October 4, 2022
    Assignee: Apple Inc.
    Inventors: Gahima S. Mbonye, Daniel P. Ellis, Gregory R. Nelson, Prashant H. Vashi, Sergey Sitnikov, Vikram B. Yerrabommanahalli
  • Publication number: 20220295343
    Abstract: Systems and methods performed by user equipment (UE) for communicating over a wireless communication network include receiving data representing one or more communication quality metrics for communication on a New Radio (NR) communication link of the wireless communication network. The method includes determining, based on the data representing the one or more communication quality metrics, a data throughput for the NR communication link of the wireless communication network. The method includes estimating a theoretical throughput for using a Long Term Evolution (LTE) communications link of the wireless network. The method includes comparing the data throughput using the NR communication link to the theoretical throughput for using the LTE communication link. The method includes causing a switch, based on the comparison, from the NR communication link to the LTE communication link.
    Type: Application
    Filed: March 9, 2022
    Publication date: September 15, 2022
    Inventors: Ioannis Pefkianakis, Muthukumaran Dhanapal, Rajesh Ambati, Lakshmi N. Kavuri, Thanigaivelu Elangovan, Ajay Singh, Dinesh Kumar Arora, Raghuveer Mallikarjunan, Gaurav Pathak, Palash Chaturvedi, Narayanan Subramanian, Sergey Sitnikov, Abhishek Walia, Ajoy K. Singh, Oleg M. Moskalenko, Sachin J. Sane, Avinash Viswanathan, Bhumika N. Makwana
  • Patent number: 11382017
    Abstract: A device providing inter-device call continuity facilitated by a wireless audio output device may include a processor configured to initiate, over a peer-to-peer connection with a second device, a communication session between the second device and a third device. The processor may be further configured to establish, over the peer-to-peer connection with the second device, an audio link corresponding to the communication session. The processor may be further configured to determine, based at least in part on the audio link, that a connection quality of the peer-to-peer connection satisfies a connection degradation condition. The processor may be further configured to request, over a wide area network connection, for the communication session with the third device to be handed-off from the second device to the first device, and to establish, over the wide area network connection, the communication session with the third device.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: July 5, 2022
    Assignee: Apple Inc.
    Inventors: Luciano M. Verger, Ajoy K. Singh, Albert R. Howard, Jr., Ariane Cotte, Christopher M. Garrido, Faraz Faheem, Gregory R. Burns, Ian J. Baird, Imran Ahmed, Nicholas J. Circosta, Robert D. Watson, Rohan C. Malthankar, Ryan A. Williams, Sergey Sitnikov, Srinivasan Nimmala, Thomas Chathoth Abraham, Vikram B. Yerrabommanahalli
  • Publication number: 20220141744
    Abstract: Apparatuses, systems, and methods for high data mode operation in cellular networks. A UE may determine, for an interface to a high-speed cellular network, a categorization from a plurality of categorizations, determine availability of the high-speed cellular network, and select, based at least in part on the categorization and availability of the high-speed cellular network, the interface for a data connection to the high-speed cellular network. The categorization may be one of expensive or not expensive and/or one of a first level associated with a higher compression codec rate or a second level associated with a lower compression codec rate. The UE may receive, from one of the a low-speed cellular network or the high-speed cellular network, carrier plan information for a cellular data service carrier and analyze the carrier plan information to determine desirability of a switch, e.g., from the low-speed cellular network to the high-speed cellular network.
    Type: Application
    Filed: January 17, 2022
    Publication date: May 5, 2022
    Inventors: Raghuveer Mallikarjunan, Patrick L Coffman, Madhusudan Chaudhary, Muthukumaran Dhanapal, Ajay Singh, Faraz Faheem, Thanigaivelu Elangovan, Lakshmi N Kavuri, Samuel J Miller, Najeeb M Abdulrahiman, Rajesh Ambati, Arun G Mathias, Vivek Ramanna, Divyaprakash P Bhojkumar, Vikram B Yerrabommanahalli, Rafael L Rivera-Barreto, Sergey Sitnikov, Oleg M Moskalenko, Bao Q Ho, Rohan C Malthankar, Samy Touati
  • Patent number: 11234178
    Abstract: Apparatuses, systems, and methods for high data mode operation in cellular networks. A UE may determine, for an interface to a high-speed cellular network, a categorization from a plurality of categorizations, determine availability of the high-speed cellular network, and select, based at least in part on the categorization and availability of the high-speed cellular network, the interface for a data connection to the high-speed cellular network. The categorization may be one of expensive or not expensive and/or one of a first level associated with a higher compression codec rate or a second level associated with a lower compression codec rate. The UE may receive, from one of the a low-speed cellular network or the high-speed cellular network, carrier plan information for a cellular data service carrier and analyze the carrier plan information to determine desirability of a switch, e.g., from the low-speed cellular network to the high-speed cellular network.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: January 25, 2022
    Assignee: Apple Inc.
    Inventors: Raghuveer Mallikarjunan, Patrick L Coffman, Madhusudan Chaudhary, Muthukumaran Dhanapal, Ajay Singh, Faraz Faheem, Thanigaivelu Elangovan, Lakshmi N Kavuri, Samuel J Miller, Najeeb M Abdulrahiman, Rajesh Ambati, Arun G Mathias, Vivek Ramanna, Divyaprakash P Bhojkumar, Vikram B Yerrabommanahalli, Rafael L Rivera-Barreto, Sergey Sitnikov, Oleg M Moskalenko, Bao Q Ho, Rohan C Malthankar, Samy Touati
  • Patent number: 11206701
    Abstract: Apparatus and methods to support access to services of multiple wireless networks by a single-radio, multiple subscriber identity module (SIM)/electronic SIM (eSIM) wireless device are disclosed. To send or receive voice communications for multiple SIMs/eSIMs, when an active voice connection for a first SIM/eSIM uses wireless circuitry to connect to a first cellular wireless network via a first radio access network, the single-radio, multi-SIM/eSIM wireless device uses alternative data transports, such as via a wireless local area network (WLAN) or by tunneling through the first radio access network of the first cellular wireless network to connect to services of additional cellular wireless networks associated with the multiple SIMs/eSIMs.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: December 21, 2021
    Assignee: Apple Inc.
    Inventors: Abhishek Walia, Najeeb M. Abdulrahiman, Oleg M. Moskalenko, Sergey Sitnikov, Vikram Bhaskara Yerrabommanahalli, Ajoy K. Singh, Arun G. Mathias
  • Publication number: 20210392557
    Abstract: Apparatuses, systems, and methods for high data mode operation in cellular networks. A UE may determine, for an interface to a high-speed cellular network, a categorization from a plurality of categorizations, determine availability of the high-speed cellular network, and select, based at least in part on the categorization and availability of the high-speed cellular network, the interface for a data connection to the high-speed cellular network. The categorization may be one of expensive or not expensive and/or one of a first level associated with a higher compression codec rate or a second level associated with a lower compression codec rate. The UE may receive, from one of the a low-speed cellular network or the high-speed cellular network, carrier plan information for a cellular data service carrier and analyze the carrier plan information to determine desirability of a switch, e.g., from the low-speed cellular network to the high-speed cellular network.
    Type: Application
    Filed: June 16, 2020
    Publication date: December 16, 2021
    Inventors: Raghuveer Mallikarjunan, Patrick L. Coffman, Madhusudan Chaudhary, Muthukumaran Dhanapal, Ajay Singh, Faraz Faheem, Thanigaivelu Elangovan, Lakshmi N. Kavuri, Samuel J. Miller, Najeeb M. Abdulrahiman, Rajesh Ambati, Arun G. Mathias, Vivek Ramanna, Divyaprakash P. Bhojkumar, Vikram B. Yerrabommanahalli, Rafael L. Rivera-Barreto, Sergey Sitnikov, Oleg M. Moskalenko, Bao Q. Ho, Rohan C. Malthankar, Samy Touati
  • Patent number: 11012941
    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.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: May 18, 2021
    Assignee: Apple Inc.
    Inventors: 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
  • Publication number: 20210037604
    Abstract: This disclosure relates to techniques for performing Wi-Fi authentication in a wireless communication system. Public key cryptography may be used to enhance the confidentiality of the user's permanent identity in transit. In some embodiments, a RSA-OAEP(SHA-256) encryption scheme may be used to protect the permanent identity when the EAP client needs to send the user's permanent identity to the server in the absence of pseudonym or fast re-authentication identity. In some embodiments, a server certificate is used to authenticate a iWLAN tunnel to protect an IMSI during setup of a Wi-Fi call. Using the methods described herein on both or either of the EAP client and server side may offer improved privacy protection.
    Type: Application
    Filed: October 19, 2020
    Publication date: February 4, 2021
    Inventors: Rohan C. Malthankar, Paresh B. Sawant, Delziel J. Fernandes, Sergey Sitnikov, Arun G. Mathias, Jason A. Novak, Krisztian Kiss, Rafael L. Rivera-Barreto, Chandiramohan Vasudevan, Vladimir M. Appel
  • Publication number: 20210014932
    Abstract: A communications network may be used to convey Short Message Service (SMS) messages using the Internet Protocol (IP). User equipment may transmit an SMS-over-IP Session Initiation Protocol (SIP) message to wireless equipment over a high-bandwidth communications link. The wireless equipment may route the SMS-over-IP SIP message to the ePDG. When the high-bandwidth link is unavailable, the user equipment may transmit a compressed message to the proxy server over a low-bandwidth communications link. The proxy server may convert the compressed message into an SMS-over-IP SIP message that is transmitted to the ePDG. The proxy server may serve as a proxy for the first user equipment from the perspective of the ePDG. This may allow SMS message data to continue to be conveyed through the communications network even when the high-bandwidth communications link becomes unavailable.
    Type: Application
    Filed: October 7, 2019
    Publication date: January 14, 2021
    Inventors: Gahima S. Mbonye, Daniel P. Ellis, Gregory R. Nelson, Prashant H. Vashi, Sergey Sitnikov, Vikram B. Yerrabommanahalli
  • Publication number: 20200383152
    Abstract: Apparatus and methods to support access to services of multiple wireless networks by a single-radio, multiple subscriber identity module (SIM)/electronic SIM (eSIM) wireless device are disclosed. To send or receive voice communications for multiple SIMs/eSIMs, when an active voice connection for a first SIM/eSIM uses wireless circuitry to connect to a first cellular wireless network via a first radio access network, the single-radio, multi-SIM/eSIM wireless device uses alternative data transports, such as via a wireless local area network (WLAN) or by tunneling through the first radio access network of the first cellular wireless network to connect to services of additional cellular wireless networks associated with the multiple SIMs/eSIMs.
    Type: Application
    Filed: June 1, 2020
    Publication date: December 3, 2020
    Inventors: Abhishek WALIA, Najeeb M. ABDULRAHIMAN, Oleg M. MOSKALENKO, Sergey SITNIKOV, Vikram Bhaskara YERRABOMMANAHALLI, Ajoy K. SINGH, Arun G. MATHIAS
  • Patent number: 10833876
    Abstract: This disclosure relates to techniques for performing Wi-Fi authentication in a wireless communication system. Public key cryptography may be used to enhance the confidentiality of the user's permanent identity in transit. In some embodiments, a RSA-OAEP (SHA-256) encryption scheme may be used to protect the permanent identity when the EAP client needs to send the user's permanent identity to the server in the absence of pseudonym or fast re-authentication identity. In some embodiments, a server certificate is used to authenticate a iWLAN tunnel to protect an IMSI during setup of a Wi-Fi call. Using the methods described herein on both or either of the EAP client and server side may offer improved privacy protection.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: November 10, 2020
    Assignee: Apple Inc.
    Inventors: Rohan C Malthankar, Paresh B. Sawant, Delziel J. Fernandes, Sergey Sitnikov, Arun G. Mathias, Jason A. Novak, Krisztian Kiss, Rafael L. Rivera-Barreto, Chandiramohan Vasudevan, Vladimir M. Appel
  • Publication number: 20200351747
    Abstract: A device providing inter-device call continuity facilitated by a wireless audio output device may include a processor configured to initiate, over a peer-to-peer connection with a second device, a communication session between the second device and a third device. The processor may be further configured to establish, over the peer-to-peer connection with the second device, an audio link corresponding to the communication session. The processor may be further configured to determine, based at least in part on the audio link, that a connection quality of the peer-to-peer connection satisfies a connection degradation condition. The processor may be further configured to request, over a wide area network connection, for the communication session with the third device to be handed-off from the second device to the first device, and to establish, over the wide area network connection, the communication session with the third device.
    Type: Application
    Filed: April 29, 2020
    Publication date: November 5, 2020
    Inventors: Luciano M. VERGER, Ajoy K. SINGH, Albert R. HOWARD, JR., Ariane COTTE, Christopher M. GARRIDO, Faraz FAHEEM, Gregory R. BURNS, Ian J. BAIRD, Imran AHMED, Nicholas J. CIRCOSTA, Robert D. WATSON, Rohan C. MALTHANKAR, Ryan A. WILLIAMS, Sergey SITNIKOV, Srinivasan NIMMALA, Thomas Chathoth ABRAHAM, Vikram B. YERRABOMMANAHALLI
  • Patent number: 10595252
    Abstract: Methods and systems are disclosed for performing seamless voice call handover and data handoff between a cellular network and a non-cellular (e.g., Wi-Fi) network, by a link budget limited user equipment device (UE) in standalone mode. The cellular radio may be maintained in a non-communication mode when not in use, to prevent power and peak power issues that may be unique to link budget limited devices. In response to poor non-cellular performance in support of a voice call, the UE may transition the cellular radio from the non-communication state to an online state. If the cellular network indicates that packet-switched calls are supported, then the UE may initiate handover of the voice call to the cellular network. Various methods for seamless handoff of data communications are also disclosed, in both the presence and the absence of a voice call. Various metrics are disclosed to enhance handoff determinations.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: March 17, 2020
    Assignee: Apple Inc.
    Inventors: Ajoy K. Singh, Najeeb M. Abdulrahiman, Sergey Sitnikov