Patents by Inventor Chandiramohan Vasudevan
Chandiramohan Vasudevan 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).
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Publication number: 20230413034Abstract: This Application sets forth techniques for provisioning and activating an electronic subscriber identity module (eSIM) as a primary SIM for a mobile wireless device that includes a limited functionality physical SIM (pSIM) associated with a particular mobile network operator (MNO) and installed in the mobile wireless device at a time of manufacture. An eSIM associated with the particular MNO is reserved during a sales order process and later activated during device activation after receipt by a user using a secure over-the-air (OTA) cellular connection enabled by the limited functionality pSIM, when a non-cellular connection or other Internet accessible connection is available. Dual SIM device configuration processes can be suppressed during activation of the eSIM. After successful attachment of the mobile wireless device to a cellular wireless network of the particular MNO using credentials of the eSIM, the limited functionality pSIM is disabled.Type: ApplicationFiled: August 30, 2023Publication date: December 21, 2023Inventors: Raj S. CHAUGULE, He ZHENG, Li LI, Vikram Bhaskara YERRABOMMANAHALLI, Chandiramohan VASUDEVAN
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Publication number: 20230397266Abstract: 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: ApplicationFiled: August 10, 2023Publication date: December 7, 2023Inventors: 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
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Patent number: 11770862Abstract: 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: GrantFiled: June 29, 2021Date of Patent: September 26, 2023Assignee: 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
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Patent number: 11758384Abstract: This Application sets forth techniques for provisioning and activating an electronic subscriber identity module (eSIM) as a primary SIM for a mobile wireless device that includes a limited functionality physical SIM (pSIM) associated with a particular mobile network operator (MNO) and installed in the mobile wireless device at a time of manufacture. An eSIM associated with the particular MNO is reserved during a sales order process and later activated during device activation after receipt by a user using a secure over-the-air (OTA) cellular connection enabled by the limited functionality pSIM, when a non-cellular connection or other Internet accessible connection is available. Dual SIM device configuration processes can be suppressed during activation of the eSIM. After successful attachment of the mobile wireless device to a cellular wireless network of the particular MNO using credentials of the eSIM, the limited functionality pSIM is disabled.Type: GrantFiled: September 3, 2021Date of Patent: September 12, 2023Assignee: Apple Inc.Inventors: Raj S. Chaugule, He Zheng, Li Li, Vikram Bhaskara Yerrabommanahalli, Chandiramohan Vasudevan
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Patent number: 11736931Abstract: This Application sets forth techniques for provisioning and activating electronic subscriber identity modules (eSIMs) for mobile wireless devices. An eSIM is reserved during a sales order process and later activated during device activation after receipt by a user. An option for eSIM installation in place of (or in addition to) physical SIM installation is provided when purchasing the mobile wireless device. The reserved eSIM can replace a previous SIM/eSIM or be a new eSIM. During device activation, installation and activation of the eSIM occurs. Activation of the eSIM can occur before or after deactivation of a transferred SIM/eSIM. The mobile wireless device accounts for propagation delay of eSIM activation through MNO servers by disabling and re-enabling the eSIM until initial attachment to an MNO cellular wireless network succeeds or a maximum number of retry attempts is reached.Type: GrantFiled: September 28, 2022Date of Patent: August 22, 2023Assignee: Apple Inc.Inventors: Raj S. Chaugule, Li Li, Vikram Bhaskara Yerrabommanahalli, Chandiramohan Vasudevan, Damien R. Holzapfel, Avinash Narasimhan, Ameya R. Kasbekar
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Publication number: 20230073252Abstract: This Application sets forth techniques for provisioning and activating an electronic subscriber identity module (eSIM) as a primary SIM for a mobile wireless device that includes a limited functionality physical SIM (pSIM) associated with a particular mobile network operator (MNO) and installed in the mobile wireless device at a time of manufacture. An eSIM associated with the particular MNO is reserved during a sales order process and later activated during device activation after receipt by a user using a secure over-the-air (OTA) cellular connection enabled by the limited functionality pSIM, when a non-cellular connection or other Internet accessible connection is available. Dual SIM device configuration processes can be suppressed during activation of the eSIM. After successful attachment of the mobile wireless device to a cellular wireless network of the particular MNO using credentials of the eSIM, the limited functionality pSIM is disabled.Type: ApplicationFiled: September 3, 2021Publication date: March 9, 2023Inventors: Raj S. CHAUGULE, He ZHENG, Li LI, Vikram Bhaskara YERRABOMMANAHALLI, Chandiramohan VASUDEVAN
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Publication number: 20230020761Abstract: This Application sets forth techniques for provisioning and activating electronic subscriber identity modules (eSIMs) for mobile wireless devices. An eSIM is reserved during a sales order process and later activated during device activation after receipt by a user. An option for eSIM installation in place of (or in addition to) physical SIM installation is provided when purchasing the mobile wireless device. The reserved eSIM can replace a previous SIM/eSIM or be a new eSIM. During device activation, installation and activation of the eSIM occurs. Activation of the eSIM can occur before or after deactivation of a transferred SIM/eSIM. The mobile wireless device accounts for propagation delay of eSIM activation through MNO servers by disabling and re-enabling the eSIM until initial attachment to an MNO cellular wireless network succeeds or a maximum number of retry attempts is reached.Type: ApplicationFiled: September 28, 2022Publication date: January 19, 2023Inventors: Raj S. CHAUGULE, Li LI, Vikram Bhaskara YERRABOMMANAHALLI, Chandiramohan VASUDEVAN, Damien R. HOLZAPFEL, Avinash NARASIMHAN, Ameya R. KASBEKAR
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Patent number: 11553561Abstract: 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: GrantFiled: October 19, 2020Date of Patent: January 10, 2023Assignee: 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
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Patent number: 11503457Abstract: This Application sets forth techniques for provisioning and activating electronic subscriber identity modules (eSIMs) for mobile wireless devices. An eSIM is reserved during a sales order process and later activated during device activation after receipt by a user. An option for eSIM installation in place of (or in addition to) physical SIM installation is provided when purchasing the mobile wireless device. The reserved eSIM can replace a previous SIM/eSIM or be a new eSIM. During device activation, installation and activation of the eSIM occurs. Activation of the eSIM can occur before or after deactivation of a transferred SIM/eSIM. The mobile wireless device accounts for propagation delay of eSIM activation through MNO servers by disabling and re-enabling the eSIM until initial attachment to an MNO cellular wireless network succeeds or a maximum number of retry attempts is reached.Type: GrantFiled: October 19, 2021Date of Patent: November 15, 2022Assignee: Apple Inc.Inventors: Raj S. Chaugule, Li Li, Vikram Bhaskara Yerrabommanahalli, Chandiramohan Vasudevan, Damien R. Holzapfel, Avinash Narasimhan, Ameya R. Kasbekar
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Publication number: 20220038887Abstract: This Application sets forth techniques for provisioning and activating electronic subscriber identity modules (eSIMs) for mobile wireless devices. An eSIM is reserved during a sales order process and later activated during device activation after receipt by a user. An option for eSIM installation in place of (or in addition to) physical SIM installation is provided when purchasing the mobile wireless device. The reserved eSIM can replace a previous SIM/eSIM or be a new eSIM. During device activation, installation and activation of the eSIM occurs. Activation of the eSIM can occur before or after deactivation of a transferred SIM/eSIM. The mobile wireless device accounts for propagation delay of eSIM activation through MNO servers by disabling and re-enabling the eSIM until initial attachment to an MNO cellular wireless network succeeds or a maximum number of retry attempts is reached.Type: ApplicationFiled: October 19, 2021Publication date: February 3, 2022Inventors: Raj S. CHAUGULE, Li LI, Vikram Bhaskara YERRABOMMANAHALLI, Chandiramohan VASUDEVAN, Damien R. HOLZAPFEL, Avinash NARASIMHAN, Ameya R. KASBEKAR
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Publication number: 20210410205Abstract: 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: ApplicationFiled: June 29, 2021Publication date: December 30, 2021Inventors: 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
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Patent number: 11172350Abstract: This Application sets forth techniques for provisioning and activating electronic subscriber identity modules (eSIMs) for mobile wireless devices. An eSIM is reserved during a sales order process and later activated during device activation after receipt by a user. An option for eSIM installation in place of (or in addition to) physical SIM installation is provided when purchasing the mobile wireless device. The reserved eSIM can replace a previous SIM/eSIM or be a new eSIM. During device activation, installation and activation of the eSIM occurs. Activation of the eSIM can occur before or after deactivation of a transferred SIM/eSIM. The mobile wireless device accounts for propagation delay of eSIM activation through MNO servers by disabling and re-enabling the eSIM until initial attachment to an MNO cellular wireless network succeeds or a maximum number of retry attempts is reached.Type: GrantFiled: June 15, 2020Date of Patent: November 9, 2021Assignee: Apple Inc.Inventors: Raj S. Chaugule, Li Li, Vikram Bhaskara Yerrabommanahalli, Chandiramohan Vasudevan, Damien R. Holzapfel, Avinash Narasimhan, Ameya R. Kasbekar
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Patent number: 11089480Abstract: This application sets forth techniques for provisioning electronic subscriber identity modules (eSIMs) to mobile wireless devices that do not include functional bootstrap provisioning profiles to obtain access to a cellular wireless network. Connectivity to a cellular wireless network can be allowed for provisioning one or more eSIMs to a mobile wireless device using hardware device identifiers for authentication and a limited purpose provisioning connection when the cellular wireless network supports provisioning connections without the use of a provisioning profile for access.Type: GrantFiled: November 21, 2019Date of Patent: August 10, 2021Assignee: Apple Inc.Inventors: Xiangying Yang, Anish Kumar Goyal, Chandiramohan Vasudevan, Vikram Bhaskara Yerrabommanahalli, Raj S. Chaugule, Li Li
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Publication number: 20210037604Abstract: 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: ApplicationFiled: October 19, 2020Publication date: February 4, 2021Inventors: 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
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Patent number: 10833876Abstract: 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: GrantFiled: October 25, 2017Date of Patent: November 10, 2020Assignee: 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
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Publication number: 20200178070Abstract: This application sets forth techniques for provisioning electronic subscriber identity modules (eSIMs) to mobile wireless devices that do not include functional bootstrap provisioning profiles to obtain access to a cellular wireless network. Connectivity to a cellular wireless network can be allowed for provisioning one or more eSIMs to a mobile wireless device using hardware device identifiers for authentication and a limited purpose provisioning connection when the cellular wireless network supports provisioning connections without the use of a provisioning profile for access.Type: ApplicationFiled: November 21, 2019Publication date: June 4, 2020Inventors: Xiangying YANG, Anish Kumar GOYAL, Chandiramohan VASUDEVAN, Vikram Bhaskara YERRABOMMANAHALLI, Raj S. CHAUGULE, Li LI
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Patent number: 10470016Abstract: Some embodiments relate to methods for provisioning a secondary wireless device with an eSIM for wireless communication and activating multi-SIM functionality between the secondary wireless device and a primary wireless device having a subscribed SIM. The primary wireless device may act as a proxy in obtaining the eSIM for the secondary wireless device. The primary wireless device may then provide, to the cellular network, identifiers of the SIMs of the primary and secondary wireless devices. The primary wireless device may then request initiation of multi-SIM functionality for the two SIMs, and receive an indication that the multi-SIM functionality has been initiated. As an example, the multi-SIM functionality may be implemented by mapping the SIM of the primary wireless device and the SIM of the secondary wireless device (e.g., the provisioned eSIM) to the same Mobile Directory Number (MDN).Type: GrantFiled: September 5, 2018Date of Patent: November 5, 2019Assignee: Apple Inc.Inventors: Vikram B. Yerrabommanahalli, Li Li, Arun G. Mathias, Najeeb M. Abdulrahiman, Chandiramohan Vasudevan, Rohan C. Malthankar, Francisco J. Gonzalez, Rafael L. Rivera-Barreto, Jean-Marc Padova
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Patent number: 10356599Abstract: A server of a wireless operator creates a roaming list based on a user's roaming plan and sends the roaming list to the user's wireless device. The roaming list includes a list of public land mobile networks (PLMNs). When the user travels away from their home wireless network to another geographic area, the wireless device scans based on the roaming list for radio signals. The roaming list contributes to user satisfaction because timely attachment to a radio network while away from home occurs efficiently since the wireless operator creates the roaming list based on both i) roaming agreements that the wireless operator is a party to with other wireless operators, ii) the user's roaming plan, iii) the radio access technology (RAT) capabilities of the wireless device and iv) the RAT capabilities of other wireless operators in particular geographic regions.Type: GrantFiled: February 16, 2018Date of Patent: July 16, 2019Assignee: Apple Inc.Inventors: Francisco J. Gonzalez, Vikram Bhaskara Yerrabommanahalli, Chandiramohan Vasudevan
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Patent number: 10299123Abstract: This disclosure relates to techniques for performing Wi-Fi authentication using an entitlement server in a wireless communication system. A wireless station may perform authentication with a carrier network entitlement server, using a protocol other than Wi-Fi. The wireless station may receive a Wi-Fi service token as part of the authentication with the carrier network entitlement server. The wireless station may perform Wi-Fi authentication with a Wi-Fi access point associated with the carrier network using the Wi-Fi service token. After performing Wi-Fi authentication using the Wi-Fi service token, the wireless station may communicate with the carrier network by way of the Wi-Fi access point.Type: GrantFiled: March 1, 2017Date of Patent: May 21, 2019Assignee: Apple Inc.Inventors: Chandiramohan Vasudevan, Vikram B. Yerrabommanahalli, Rafael L. Rivera-Barreto, Francisco J. Gonzalez, Rohan C. Malthankar
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Publication number: 20190007813Abstract: Some embodiments relate to methods for provisioning a secondary wireless device with an eSIM for wireless communication and activating multi-SIM functionality between the secondary wireless device and a primary wireless device having a subscribed SIM. The primary wireless device may act as a proxy in obtaining the eSIM for the secondary wireless device. The primary wireless device may then provide, to the cellular network, identifiers of the SIMs of the primary and secondary wireless devices. The primary wireless device may then request initiation of multi-SIM functionality for the two SIMs, and receive an indication that the multi-SIM functionality has been initiated. As an example, the multi-SIM functionality may be implemented by mapping the SIM of the primary wireless device and the SIM of the secondary wireless device (e.g., the provisioned eSIM) to the same Mobile Directory Number (MDN).Type: ApplicationFiled: September 5, 2018Publication date: January 3, 2019Inventors: Vikram B. Yerrabommanahalli, Li Li, Arun G. Mathias, Najeeb M. Abdulrahiman, Chandiramohan Vasudevan, Rohan C. Malthankar, Francisco J. Gonzalez, Rafael L. Rivera-Barreto, Jean-Marc Padova