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).

  • Publication number: 20200008007
    Abstract: A device, e.g. a wireless communication device may obtain information associated with private cellular networks from a provisioning server. The information may provide an indication of coverage area(s) of available private cellular network(s). The device may communicate over a commercial cellular network, and determine, based at least on the information, whether the device is located within the coverage area of any available private cellular networks. The device may connect to a first private cellular network (FPCN) of the available private cellular networks and switch from communicating over the commercial cellular network to communicating over the FPCN at least in response to the determination indicating that the device is located within the indicated coverage area. The device may disconnect from the FPCN in response to a determination that the signal level of the FPCN is below a specified value and the device is not using a wallet garden application.
    Type: Application
    Filed: June 26, 2019
    Publication date: January 2, 2020
    Inventors: Farouk Belghoul, Cesar Perez, Rafael L. Rivera-Barreto
  • Patent number: 10517042
    Abstract: Distributing indications of emergency messages via Wi-Fi. A cellular device may temporarily disable its cellular modem. The cellular device may receive an indication over Wi-Fi that an emergency message has been broadcast. In response, the cellular device may activate its cellular modem and retrieve the emergency message via a cellular network.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: December 24, 2019
    Assignee: Apple Inc.
    Inventors: Farouk Belghoul, Rafael L. Rivera-Barreto, Krisztian Kiss, Rohan C. Malthankar, Tarik Tabet, Cesar Perez
  • Publication number: 20190373590
    Abstract: Techniques are disclosed relating to broadcasting and receiving system information in a radio access network (RAN). In some embodiment, a base station is configured to broadcast different sets of first system information blocks (SIBs) for different classes of user equipment devices (e.g., traditional UEs and UEs having a limited link budget).
    Type: Application
    Filed: August 14, 2019
    Publication date: December 5, 2019
    Inventors: Tarik Tabet, Awais M. Hussain, Samy Khay-Ibbat, Sarma V. Vangala, Rafael L. Rivera-Barreto
  • Patent number: 10484894
    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: Grant
    Filed: April 24, 2018
    Date of Patent: November 19, 2019
    Assignee: Apple Inc.
    Inventors: Francisco J. Gonzalez, Rafael L. Rivera-Barreto, Rohan C. Malthankar, Sarma V. Vangala, Tarik Tabet
  • Publication number: 20190350044
    Abstract: This disclosure relates to transmitting an emergency message to a user equipment device (UE) over a wireless local area network (WLAN). The UE may establish a connection with an access point through WLAN. The UE may transmit, via the access point and to a network entity, an indication that the UE supports receiving emergency messaging through the WLAN. At least in part in response to communicating the indication, the UE may receive, from the network entity and via the access point, an emergency message and location information. The UE may compare the location information with a location of the UE to determine whether the UE is located within a first region specified by the location information. Based on a determination that the location of the UE is within the first region, the UE may display the emergency message on a display of the UE.
    Type: Application
    Filed: May 7, 2019
    Publication date: November 14, 2019
    Inventors: Farouk Belghoul, Krisztian Kiss, Rafael L. Rivera-Barreto, Rohan C. Malthankar, Sherman X. Jin
  • Patent number: 10470050
    Abstract: This disclosure relates to performing uplink cellular communication in unlicensed frequency bands using Wi-Fi preamble information. A wireless device may receive downlink control information from a cellular base station. The downlink control information may indicate an uplink transmit opportunity for licensed assisted access communication for the wireless device. A length of the uplink transmit opportunity may be determined. Licensed assisted access uplink communication may be performed during the uplink transmit opportunity. A Wi-Fi physical layer preamble may be transmitted as part of the licensed assisted access uplink communication. A type of the Wi-Fi physical layer preamble may depend at least in part on the length of the uplink transmit opportunity.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: November 5, 2019
    Assignee: Apple Inc.
    Inventors: Farouk Belghoul, Christian W. Mucke, Rafael L. Rivera-Barreto
  • Patent number: 10470016
    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: September 5, 2018
    Date of Patent: November 5, 2019
    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
  • Patent number: 10462192
    Abstract: Techniques are disclosed relating to informing a network that a UE desires packet-switched voice communication. In one embodiment, a method includes receiving first information from a UE device requesting voice communication over a packet-switched network. In this embodiment, the method further includes transmitting, in response to the first information, second information to a base station serving the UE device, wherein the second information indicates that the UE device is requesting voice communication over the packet-switched network. In this embodiment, the transmitting is performed prior to establishment of a dedicated bearer by the base station for the UE device. In this embodiment, the second information operates to configure communications between the base station and the UE device to provide a particular quality of service for the packet-switched voice communication using the dedicated bearer.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: October 29, 2019
    Assignee: Apple Inc.
    Inventors: Huarui Liang, Tarik Tabet, Dawei Zhang, Farouk Belghoul, Samy Khay-Ibbat, Rafael L. Rivera-Barreto
  • Patent number: 10462805
    Abstract: A wireless communication device (UE) includes a cellular processor configured to conduct wireless communications according to a first radio access technology (RAT) in a first frequency band and in a second frequency band, wherein the first RAT is a cellular RAT, the first frequency band is in an unlicensed spectrum, and the second frequency band is in a licensed spectrum. In some embodiments, the apparatus includes a wireless local area network (WLAN) processor configured to conduct wireless communications according to a second RAT in the first frequency band. In some embodiments, the cellular processor and the WLAN processor are configured to couple to a common antenna for communications in the first frequency band. In some embodiments, the cellular processor may notify the WLAN processor when it is scanning and/or when it is assigned secondary component carriers in the first frequency band. In some embodiments, the WLAN processor may notify the cellular processor when it is transmitting.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: October 29, 2019
    Assignee: Apple Inc.
    Inventors: Farouk Belghoul, Paul V. Flynn, Louie J. Sanguinetti, Bernd W. Adler, Christian W. Mucke, Joseph Hakim, Ronald W. Dimpflmaier, Matthias Sauer, Tushar R. Shah, Daniel R. Borges, Rafael L. Rivera-Barreto, Cesar Perez
  • Publication number: 20190312868
    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: Application
    Filed: April 15, 2019
    Publication date: October 10, 2019
    Inventors: Krisztian KISS, Thomas F. PAULY, Ajoy K. SINGH, Rohan C. MALTHANKAR, Vikram Bhaskara YERRABOMMANAHALLI, Rafael L. RIVERA-BARRETO
  • Patent number: 10440593
    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: Grant
    Filed: May 16, 2019
    Date of Patent: October 8, 2019
    Assignee: Apple Inc.
    Inventors: Francisco J. Gonzalez, Rafael L. Rivera-Barreto, Rohan C. Malthankar, Sarma V. Vangala, Tarik Tabet
  • Publication number: 20190305922
    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: Application
    Filed: June 18, 2019
    Publication date: October 3, 2019
    Inventors: Tarik Tabet, Syed Aon Mujtaba, Samy Khay-Ibbat, Rafael L. Rivera-Barreto
  • Patent number: 10432366
    Abstract: In some embodiments, a wireless device such as a user equipment (UE) may communicate with a base station using an advanced form of carrier aggregation. The UE may provide signaling to the network specifying a number P of downlink component carriers to be configured for use by the UE for downlink carrier aggregation and a number Q of uplink component carriers to be configured for use by the UE for uplink carrier aggregation. The UE can only utilize a lesser number M of downlink component carriers at any given time in downlink carrier aggregation and can only utilize a lesser number N of uplink component carriers at any given time in uplink carrier aggregation. Thus the UE may request the network to configure a greater number P and Q of downlink and uplink component carriers, respectively, than the UE can actually use at any instant of time.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: October 1, 2019
    Assignee: Apple Inc.
    Inventors: Tarik Tabet, Awais M. Hussain, Rafael L. Rivera-Barreto, Matthias Sauer, Christian W. Mucke, David Boettger, Moustafa M. Elsayed
  • Patent number: 10412721
    Abstract: Techniques are disclosed relating to broadcasting and receiving system information in a radio access network (RAN). In one embodiment, a base station includes at least one antenna, at least one radio, configured to perform cellular communication using a radio access technology (RAT), and one or more processors coupled to the radio. In this embodiment, the base station is configured to broadcast first system information blocks (SIBs) encoded using a first coding rate and a first identifier. In this embodiment, the base station is also configured to broadcast second SIBs encoded using a second coding rate that is lower than the first coding rate and a second identifier. In this embodiment, the second SIBs include only a portion of the information included in the first SIBs and the second SIBs are usable by user equipment devices (UEs) having a limited link budget to determine access parameters for the base station.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: September 10, 2019
    Assignee: Apple Inc.
    Inventors: Tarik Tabet, Awais M. Hussain, Samy Khay-Ibbat, Sarma V. Vangala, Rafael L. Rivera-Barreto
  • Publication number: 20190274057
    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: May 16, 2019
    Publication date: September 5, 2019
    Inventors: Francisco J. Gonzalez, Rafael L. Rivera-Barreto, Rohan C. Malthankar, Sarma V. Vangala, Tarik Tabet
  • Patent number: 10383016
    Abstract: 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: Grant
    Filed: June 30, 2016
    Date of Patent: August 13, 2019
    Assignee: Apple Inc.
    Inventors: Krisztian Kiss, Rohan C. Malthankar, Vikram Bhaskara Yerrabommanahalli, Rafael L. Rivera-Barreto
  • 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