Patents by Inventor Rafael L. RIVERA-BARRETO

Rafael L. RIVERA-BARRETO 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: 10333686
    Abstract: A user equipment (UE) and network entity implement improved communication methods which enable a UE to operate using differing modes of operation without detaching from a network. The UE may send first information indicating its capabilities to the network entity and may receive a first indication based on the first information. The first indication may indicate that the UE operate according to a first mode of operation. The UE may receive a second indication based on an occurrence of a first condition detectable at the network entity. The second indication may indicate that the UE operate according to a second mode of operation different from the first mode of operation. The first condition may be an initialization of a real time data packet session for the UE or may be a first message sent by the UE in response to one or more radio conditions exceeding a threshold.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: June 25, 2019
    Assignee: Apple Inc.
    Inventors: Tarik Tabet, Syed Aon Mujtaba, Samy Khay-Ibbat, Rafael L. Rivera-Barreto
  • Patent number: 10299123
    Abstract: 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: Grant
    Filed: March 1, 2017
    Date of Patent: May 21, 2019
    Assignee: Apple Inc.
    Inventors: Chandiramohan Vasudevan, Vikram B. Yerrabommanahalli, Rafael L. Rivera-Barreto, Francisco J. Gonzalez, Rohan C. Malthankar
  • Publication number: 20190132708
    Abstract: A network controller, a user equipment (UE) device, and associated methods for conducting intelligent enhanced multimedia broadcast multicast services (eMBMS). A network controller receives user preference information and location information from a plurality of UEs. The network controller selects one or more data packages to transmit using eMBMS in one or more broadcast regions based on the user preference information and the location information. The one or more data packages may comprise an updated machine learning model in a distributed learning application. The network controller provides an indication to a remote device to broadcast the one or more data packages in the respective one or more broadcast regions using eMBMS.
    Type: Application
    Filed: September 28, 2018
    Publication date: May 2, 2019
    Inventors: Farouk Belghoul, Christian W. Mucke, Rafael L. Rivera-Barreto, Ayman F. Naguib, Rohan C. Malthankar, Ben-Heng Juang, Kushal M. Chawda, Sumit Saxena
  • Publication number: 20190124709
    Abstract: This disclosure relates to temporary suspension, and subsequent resumption, of radio resource aggregation in a wireless communication system. A wireless device may establish a communication link with a base station. The communication link with the base station may aggregate radio resources according to a first wireless communication technology and a second wireless communication technology. Use by the communication link of radio resources according to the second wireless communication technology may be suspended. Wireless communication activity according to the second wireless communication technology that is not associated with the communication link may be performed while use by the communication link of radio resources according to the second wireless communication technology is suspended.
    Type: Application
    Filed: December 20, 2018
    Publication date: April 25, 2019
    Inventors: Farouk Belghoul, Tarik Tabet, Rafael L. Rivera-Barreto
  • Patent number: 10263984
    Abstract: 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: Grant
    Filed: September 22, 2016
    Date of Patent: April 16, 2019
    Assignee: Apple Inc.
    Inventors: Krisztian Kiss, Thomas F. Pauly, Ajoy K. Singh, Rohan C. Malthankar, Vikram Bhaskara Yerrabommanahalli, Rafael L. Rivera-Barreto
  • Publication number: 20190069338
    Abstract: 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: Application
    Filed: August 20, 2018
    Publication date: February 28, 2019
    Inventors: Krisztian KISS, Rohan C. MALTHANKAR, Rafael L. RIVERA-BARRETO, Vikram Bhaskara YERRABOMMANAHALLI
  • Patent number: 10201031
    Abstract: This disclosure relates to temporary suspension, and subsequent resumption, of radio resource aggregation in a wireless communication system. A wireless device may establish a communication link with a base station. The communication link with the base station may aggregate radio resources according to a first wireless communication technology and a second wireless communication technology. Use by the communication link of radio resources according to the second wireless communication technology may be suspended. Wireless communication activity according to the second wireless communication technology that is not associated with the communication link may be performed while use by the communication link of radio resources according to the second wireless communication technology is suspended.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: February 5, 2019
    Assignee: Apple Inc.
    Inventors: Farouk Belghoul, Tarik Tabet, Rafael L. Rivera-Barreto
  • Patent number: 10187760
    Abstract: Some embodiments relate to a cellular network which facilitates transmission of messages, such as SMS or MMS messages, to/from respective user equipment (UE) devices of a user. Each of the UE devices may provide a relative priority value indicating a priority for receipt of messages relative to the other UE devices associated with the user. When a message intended for the user is received at the cellular network, the priority information associated with each of the user's at least two UE devices may be retrieved. The message may then be selectively delivered (by the cellular network) to one of the first UE device or the second UE device based on the relative values of the first priority value and the second priority value. If a delivery attempt fails to the highest priority device, the cellular network may attempt to deliver the message to the second highest priority UE device.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: January 22, 2019
    Assignee: Apple Inc.
    Inventors: Arun G. Mathias, Rafael L. Rivera-Barreto, Rohan C. Malthankar, Teck Yang Lee, Vikram B. Yerrabommanahalli
  • Publication number: 20190007813
    Abstract: 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: Application
    Filed: September 5, 2018
    Publication date: January 3, 2019
    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
  • Publication number: 20180352425
    Abstract: 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: Application
    Filed: April 16, 2018
    Publication date: December 6, 2018
    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
  • Publication number: 20180352514
    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: Application
    Filed: April 27, 2018
    Publication date: December 6, 2018
    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
  • Patent number: 10149150
    Abstract: 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: Grant
    Filed: April 16, 2018
    Date of Patent: December 4, 2018
    Assignee: 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
  • Publication number: 20180324658
    Abstract: This disclosure relates to techniques for a link budget limited UE to improve communications performance with a cellular network. The UE may perform signal to interference noise ratio (SINR) measurements and use these measurements to adjust a received signal power value that is provided to the cellular network as a received signal power measurement. The UE may generate the received signal power value based at least in part on the SINR measurement in order to reduce the likelihood of handover when the UE has good SINR but poor received signal power. The UE may also provide preferred configuration information to the base station which enhances the performance of the UE when link budget limited. The configuration information may specify one or more parameter values designed to provide improved performance for a link budget limited device.
    Type: Application
    Filed: July 17, 2018
    Publication date: November 8, 2018
    Inventors: Tarik Tabet, Farouk Belghoul, Samy Khay-Ibbat, Sarma V. Vangala, Rafael L. Rivera-Barreto, David Boettger, Awais M. Hussain, Syed Aon Mujtaba
  • Publication number: 20180324659
    Abstract: This disclosure relates to techniques for a link budget limited UE to improve communications performance with a cellular network. The UE may perform signal to interference noise ratio (SINR) measurements and use these measurements to adjust a received signal power value that is provided to the cellular network as a received signal power measurement. The UE may generate the received signal power value based at least in part on the SINR measurement in order to reduce the likelihood of handover when the UE has good SINR but poor received signal power. The UE may also provide preferred configuration information to the base station which enhances the performance of the UE when link budget limited. The configuration information may specify one or more parameter values designed to provide improved performance for a link budget limited device.
    Type: Application
    Filed: July 17, 2018
    Publication date: November 8, 2018
    Inventors: Tarik Tabet, Farouk Belghoul, Samy Khay-Ibbat, Sarma V. Vangala, Rafael L. Rivera-Barreto, David Boettger, Awais M. Hussain, Syed Aon Mujtaba
  • Patent number: 10080119
    Abstract: 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: Grant
    Filed: November 17, 2017
    Date of Patent: September 18, 2018
    Assignee: 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
  • Publication number: 20180242173
    Abstract: System and methods for providing special radio provisions to link budget limited devices. Before establishing a cellular connection with a cellular network, a user equipment device (UE), such as a link budget limited UE, may negotiate the special radio provisions with the network by presenting requested profile information to the network, and receiving back approved profile information from the network. The UE may perform these communications either directly, via a non-cellular communication connection with the network, or indirectly, via a companion or proxy device. When the UE initiates a cellular connection with the network, both entities may use information specified in the approved profile information, which may improve efficiency of the connection. In some scenarios, the approved profile information may identify a class of devices to which the UE belongs. The approved profile information may also be used in establishing connections with other devices of the same class.
    Type: Application
    Filed: April 24, 2018
    Publication date: August 23, 2018
    Inventors: Francisco J. Gonzalez, Rafael L. Rivera-Barreto, Rohan C. Malthankar, Sarma V. Vangala, Tarik Tabet
  • Patent number: 10057823
    Abstract: This disclosure relates to techniques for a link budget limited UE to improve communications performance with a cellular network. The UE may perform signal to interference noise ratio (SINR) measurements and use these measurements to adjust a received signal power value that is provided to the cellular network as a received signal power measurement. The UE may generate the received signal power value based at least in part on the SINR measurement in order to reduce the likelihood of handover when the UE has good SINR but poor received signal power. The UE may also provide preferred configuration information to the base station which enhances the performance of the UE when link budget limited. The configuration information may specify one or more parameter values designed to provide improved performance for a link budget limited device.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: August 21, 2018
    Assignee: Apple Inc.
    Inventors: Tarik Tabet, Farouk Belghoul, Samy Khay-Ibbat, Sarma V. Vangala, Rafael L. Rivera-Barreto, David Boettger, Awais M. Hussain, Syed Aon Mujtaba
  • Patent number: 10057927
    Abstract: 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: Grant
    Filed: May 16, 2017
    Date of Patent: August 21, 2018
    Assignee: Apple Inc.
    Inventors: Krisztian Kiss, Rohan C. Malthankar, Rafael L. Rivera-Barreto, Vikram Bhaskara Yerrabommanahalli
  • Patent number: 10050761
    Abstract: Methods that are performed by a user equipment (UE) and corresponding methods of base stations that allow a UE to determine whether the UE is in a carrier aggregation enabled or disabled state. One exemplary embodiment of a method performed by a UE determines a first artificial value for a first parameter and a second artificial value for a power headroom (PHR) for a secondary component carrier (SCC), the first and second artificial values being substantially low relative to a configuration of the network, generates an artificial report including the first and second artificial values, transmits the artificial report to a primary cell providing a primary component carrier (PCC) and receives an indication that the UE is placed in a carrier aggregation disabled state.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: August 14, 2018
    Assignee: APPLE INC.
    Inventors: Samy Khay-Ibbat, Tarik Tabet, Sarma V. Vangala, Swaminathan Balakrishnan, Rafael L. Rivera-Barreto, Sree Ram Kodali
  • Patent number: 10021673
    Abstract: A wireless communication device (UE) conducting wireless communications according to a specified radio access technology (RAT) in a first communications band belonging to a first network may be required to switch to a different communications band due to network restrictions and/or radio link failure. The UE may therefore perform a system scan identifying other communications bands associated with the first RAT and available at the present location of the UE. The UE may identify whether the other communications bands include preferred communications bands belonging to the first network, support a service associated with the wireless communications of the UE, and have an energy level higher than a specified threshold. If one or more preferred communications bands are present, the UE may switch communications from the first communications band to one of the preferred communications bands, even if it doesn't have the highest energy level among all the other communications bands.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: July 10, 2018
    Assignee: Apple Inc.
    Inventors: Alosious Pradeep Prabhakar, Jose A. Castelo Vega, Siddharth Pandey, Aditya A. Marawar, Rafael L. Rivera-Barreto