Patents by Inventor Vikram Bhaskara Yerrabommanahalli
Vikram Bhaskara Yerrabommanahalli 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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Patent number: 10270812Abstract: Methods and apparatus to manage registration for cellular services of a secondary wireless device associated with a primary wireless device are disclosed. The secondary wireless device can detect entering proximity to the primary wireless device and in response to the detecting deactivate a cellular wireless interface of the secondary wireless device to conserve battery power, and provide an indication to the primary wireless device, via a non-cellular wireless interface, to cause the primary wireless device to perform a deregistration of the secondary wireless device for cellular services. The secondary wireless device can establish connections and communicate via non-cellular wireless interfaces while within proximity of the primary wireless device.Type: GrantFiled: May 31, 2017Date of Patent: April 23, 2019Assignee: Apple Inc.Inventors: Prashant H. Vashi, Najeeb M. Abdulrahiman, Rohan C. Malthankar, Arun G. Mathias, Vikram Bhaskara Yerrabommanahalli
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Patent number: 10263984Abstract: 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.Type: GrantFiled: September 22, 2016Date of Patent: April 16, 2019Assignee: Apple Inc.Inventors: Krisztian Kiss, Thomas F. Pauly, Ajoy K. Singh, Rohan C. Malthankar, Vikram Bhaskara Yerrabommanahalli, Rafael L. Rivera-Barreto
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Publication number: 20190069338Abstract: Apparatus and methods to support emergency services sessions by network elements and by a wireless device are disclosed. The wireless device, when roaming to a visited country/region, queries a network-based server to obtain information for Public Land Mobile Networks (PLMNs) that support emergency services sessions via non-cellular wireless access in the visited country/region. The network-based server responds with a list of PLMNs from which the wireless device selects a PLMN. The wireless device further queries the network-based server to obtain information for evolved Packet Data Gateways (ePDGs) for a selected PLMN and receives from the network-based server a list of Internet Protocol (IP) addresses for ePDGs that support emergency services sessions via non-cellular wireless access for the selected PLMN.Type: ApplicationFiled: August 20, 2018Publication date: February 28, 2019Inventors: Krisztian KISS, Rohan C. MALTHANKAR, Rafael L. RIVERA-BARRETO, Vikram Bhaskara YERRABOMMANAHALLI
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Publication number: 20180352425Abstract: Techniques to manage updates for eSIMs of a secondary wireless device are disclosed. Responsive to a user input, expiration of a timer, receipt of a message from an associated primary wireless device, processing circuitry of the secondary wireless device commands an eUICC to update an eSIM. A secure data connection is established between the eUICC and a network provisioning server, either directly from the secondary wireless device to a cellular wireless network or relayed indirectly via the primary wireless device. The eUICC and the network provisioning server exchange messages in accordance with a BIP process to update the eSIM. The eUICC provides a status to the processing circuitry indicating success or failure for the eSIM update. Upon success, a portion of the secondary wireless device may be placed in a reduced power state. Upon failure, the eSIM update process may repeat up to a maximum number of retries.Type: ApplicationFiled: April 16, 2018Publication date: December 6, 2018Inventors: Chandiramohan VASUDEVAN, Rohan C. MALTHANKAR, Prashant H. VASHI, Viswanath NAGARAJAN, Vikram Bhaskara YERRABOMMANAHALLI, Rafael L. RIVERA-BARRETO, Samuel J. MILLER, Kannan JEYAKUMAR, Li LI
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Patent number: 10149150Abstract: Techniques to manage updates for eSIMs of a secondary wireless device are disclosed. Responsive to a user input, expiration of a timer, receipt of a message from an associated primary wireless device, processing circuitry of the secondary wireless device commands an eUICC to update an eSIM. A secure data connection is established between the eUICC and a network provisioning server, either directly from the secondary wireless device to a cellular wireless network or relayed indirectly via the primary wireless device. The eUICC and the network provisioning server exchange messages in accordance with a BIP process to update the eSIM. The eUICC provides a status to the processing circuitry indicating success or failure for the eSIM update. Upon success, a portion of the secondary wireless device may be placed in a reduced power state. Upon failure, the eSIM update process may repeat up to a maximum number of retries.Type: GrantFiled: April 16, 2018Date of Patent: December 4, 2018Assignee: Apple Inc.Inventors: Chandiramohan Vasudevan, Rohan C. Malthankar, Prashant H. Vashi, Viswanath Nagarajan, Vikram Bhaskara Yerrabommanahalli, Rafael L. Rivera-Barreto, Samuel J. Miller, Kannan Jeyakumar, Li Li
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Publication number: 20180255449Abstract: 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: ApplicationFiled: February 16, 2018Publication date: September 6, 2018Inventors: Francisco J. Gonzalez, Vikram Bhaskara Yerrabommanahalli, Chandiramohan Vasudevan
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Patent number: 10057927Abstract: Apparatus and methods to support emergency services sessions by network elements and by a wireless device are disclosed. The wireless device, when roaming to a visited country/region, queries a network-based server to obtain information for Public Land Mobile Networks (PLMNs) that support emergency services sessions via non-cellular wireless access in the visited country/region. The network-based server responds with a list of PLMNs from which the wireless device selects a PLMN. The wireless device further queries the network-based server to obtain information for evolved Packet Data Gateways (ePDGs) for a selected PLMN and receives from the network-based server a list of Internet Protocol (IP) addresses for ePDGs that support emergency services sessions via non-cellular wireless access for the selected PLMN.Type: GrantFiled: May 16, 2017Date of Patent: August 21, 2018Assignee: Apple Inc.Inventors: Krisztian Kiss, Rohan C. Malthankar, Rafael L. Rivera-Barreto, Vikram Bhaskara Yerrabommanahalli
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Patent number: 10057767Abstract: Apparatus and methods to support location specific control to allow and/or disallow access to services through untrusted wireless networks by a wireless communication device are disclosed. One or more network elements obtain a location of the wireless communication device and selectively allow and/or disallow access to one or more cellular network services and/or one or more access point names (APNs) based on the location of the wireless communication device when connecting through an untrusted wireless network.Type: GrantFiled: December 18, 2015Date of Patent: August 21, 2018Assignee: Apple Inc.Inventors: Vikram Bhaskara Yerrabommanahalli, Ajoy K. Singh, Krisztian Kiss, Rohan C. Malthankar, Thomas F. Pauly
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Patent number: 9949113Abstract: Techniques to manage updates for eSIMs of a secondary wireless device are disclosed. Responsive to a user input, expiration of a timer, receipt of a message from an associated primary wireless device, processing circuitry of the secondary wireless device commands an eUICC to update an eSIM. A secure data connection is established between the eUICC and a network provisioning server, either directly from the secondary wireless device to a cellular wireless network or relayed indirectly via the primary wireless device. The eUICC and the network provisioning server exchange messages in accordance with a BIP process to update the eSIM. The eUICC provides a status to the processing circuitry indicating success or failure for the eSIM update. Upon success, a portion of the secondary wireless device may be placed in a reduced power state. Upon failure, the eSIM update process may repeat up to a maximum number of retries.Type: GrantFiled: June 2, 2017Date of Patent: April 17, 2018Assignee: Apple Inc.Inventors: Chandiramohan Vasudevan, Rohan C. Malthankar, Prashant H. Vashi, Viswanath Nagarajan, Vikram Bhaskara Yerrabommanahalli, Rafael L. Rivera-Barreto, Samuel J. Miller, Kannan Jeyakumar, Li Li
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Patent number: 9900765Abstract: 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: June 2, 2016Date of Patent: February 20, 2018Assignee: Apple Inc.Inventors: Francisco J. Gonzalez, Vikram Bhaskara Yerrabommanahalli, Chandiramohan Vasudevan
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Publication number: 20170353851Abstract: 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: ApplicationFiled: June 2, 2016Publication date: December 7, 2017Inventors: Francisco J. GONZALEZ, Vikram Bhaskara YERRABOMMANAHALLI, Chandiramohan VASUDEVAN
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Publication number: 20170346858Abstract: Methods and apparatus to manage registration for cellular services of a secondary wireless device associated with a primary wireless device are disclosed. The secondary wireless device can detect entering proximity to the primary wireless device and in response to the detecting deactivate a cellular wireless interface of the secondary wireless device to conserve battery power, and provide an indication to the primary wireless device, via a non-cellular wireless interface, to cause the primary wireless device to perform a deregistration of the secondary wireless device for cellular services. The secondary wireless device can establish connections and communicate via non-cellular wireless interfaces while within proximity of the primary wireless device.Type: ApplicationFiled: May 31, 2017Publication date: November 30, 2017Inventors: Prashant H. VASHI, Najeeb M. ABDULRAHIMAN, Rohan C. MALTHANKAR, Arun G. MATHIAS, Vikram Bhaskara YERRABOMMANAHALLI
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Publication number: 20170332416Abstract: Apparatus and methods to support emergency services sessions by network elements and by a wireless device are disclosed. The wireless device, when roaming to a visited country/region, queries a network-based server to obtain information for Public Land Mobile Networks (PLMNs) that support emergency services sessions via non-cellular wireless access in the visited country/region. The network-based server responds with a list of PLMNs from which the wireless device selects a PLMN. The wireless device further queries the network-based server to obtain information for evolved Packet Data Gateways (ePDGs) for a selected PLMN and receives from the network-based server a list of Internet Protocol (IP) addresses for ePDGs that support emergency services sessions via non-cellular wireless access for the selected PLMN.Type: ApplicationFiled: May 16, 2017Publication date: November 16, 2017Inventors: Krisztian KISS, Rohan C. MALTHANKAR, Rafael L. RIVERA-BARRETO, Vikram Bhaskara YERRABOMMANAHALLI
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Publication number: 20170289883Abstract: Apparatus and methods to support handover of emergency services sessions by network elements and by a wireless device between wireless networks are disclosed. The wireless device indicates an emergency services handover to applicable network elements, including an evolved Packet Data Gateway (ePDG), in one more messages when transferring an established emergency services session from a cellular wireless network to an untrusted non-cellular wireless network. In some embodiments, the wireless device includes a predefined string as part of a set of identification data in an IKE_AUTH request message sent to the ePDG. In some embodiments, the wireless device includes a previously allocated IP address within a payload of the IKE_AUTH request message to indicate handover of an existing session. By providing both the predefined “EMERGENCY” string and the previously allocated IP address, the wireless indicates a handover of an emergency services session between wireless networks.Type: ApplicationFiled: March 31, 2017Publication date: October 5, 2017Inventors: Krisztian KISS, Rafael L. RIVERA-BARRETO, Rohan C. MALTHANKAR, Vikram Bhaskara YERRABOMMANAHALLI, Xuqiang HUA
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Publication number: 20170094512Abstract: 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.Type: ApplicationFiled: September 22, 2016Publication date: March 30, 2017Inventors: Krisztian KISS, Thomas F. PAULY, Ajoy K. SINGH, Rohan C. MALTHANKAR, Vikram Bhaskara YERRABOMMANAHALLI, Rafael L. RIVERA-BARRETO
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Patent number: 9565529Abstract: Methods and apparatus for dynamic search management in a multi-mode device. In one embodiment, a mobile device performs network search and acquisition by dynamically changing search delays and/or search frequencies. In one implementation, the mobile device adjusts the amount of time allocated for each network search based on e.g., previous network connection history (e.g., previously connected to a home network, previously connected to a roaming network), device conditions, user preferences, geographical information, etc. By focusing search effort on cellular technologies which have a high likelihood of success, the mobile device can greatly improve search time and reduce unnecessary power consumption.Type: GrantFiled: October 29, 2015Date of Patent: February 7, 2017Assignee: Apple Inc.Inventors: Vikram Bhaskara Yerrabommanahalli, Prashant H. Vashi, Madhusudan Chaudhary, Brian H. Cassidy, Karthik Anantharaman, Bharath Narasimha Rao
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Publication number: 20170006514Abstract: Apparatus and methods to support emergency services through untrusted wireless networks by a user equipment (UE) are disclosed. The UE detects a request for emergency services to be provided via an untrusted wireless network. The UE de-registers from any non-emergency services and releases any existing PDN connections. The UE sends a request for emergency services to an evolved packet data gateway (ePDG) at an Internet Protocol (IP) address obtained from a table or from a domain name system (DNS) server. The request includes an indication for emergency services using a configuration attribute assigned to indicate emergency services. The UE receives from the ePDG an indication of support for emergency services in a reply to the request.Type: ApplicationFiled: June 30, 2016Publication date: January 5, 2017Inventors: Krisztian KISS, Rohan C. MALTHANKAR, Vikram Bhaskara YERRABOMMANAHALLI, Rafael L. RIVERA-BARRETO
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Patent number: 9467919Abstract: Methods, apparatuses and computer readable media are described to compensate for radio frequency link imbalances in a wireless communication device. Processing circuitry in the wireless communication device detects a radio frequency link imbalance for a bi-directional communication link. The wireless communication device biases one or more operational parameters of the wireless communication device to adjust for a performance degradation induced by the radio frequency link imbalance. The wireless communication device determines whether a trigger condition for cell selection, reselection, or handover occurs based on the biased operational parameters, and when the trigger condition occurs, performs a remediating action to compensate for the radio frequency link imbalance. Remediation can include performing an intra-RAT or inter-RAT reselection or handover.Type: GrantFiled: August 14, 2013Date of Patent: October 11, 2016Assignee: Apple Inc.Inventors: Vikram Bhaskara Yerrabommanahalli, Prashant H. Vashi, Abdul-Munem Al-Khudairi
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Patent number: 9451497Abstract: A method for reducing packet loss during data transfer from a network to a wireless communication device over a connection is disclosed. The method can include the wireless communication device signaling a first receive window size for a data transfer; determining occurrence of an event resulting in an interruption of the connection; and, in response to determining occurrence of the event, signaling a second receive window size for the data transfer prior to the event to trigger an adjustment of a data rate of the data transfer in preparation for the event.Type: GrantFiled: August 13, 2013Date of Patent: September 20, 2016Assignee: Apple Inc.Inventors: Sarma V. Vangala, Sreevalsan Vallath, Swaminathan Balakrishnan, Vikram Bhaskara Yerrabommanahalli
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Publication number: 20160183085Abstract: Apparatus and methods to support location specific control to allow and/or disallow access to services through untrusted wireless networks by a wireless communication device are disclosed. One or more network elements obtain a location of the wireless communication device and selectively allow and/or disallow access to one or more cellular network services and/or one or more access point names (APNs) based on the location of the wireless communication device when connecting through an untrusted wireless network.Type: ApplicationFiled: December 18, 2015Publication date: June 23, 2016Inventors: Vikram Bhaskara YERRABOMMANAHALLI, Ajoy K. SINGH, Krisztian KISS, Rohan C. MALTHANKAR, Thomas F. PAULY