Patents by Inventor A. Karl Corona

A. Karl Corona 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: 20250063092
    Abstract: Various embodiments comprise a wireless communication network to maintain multimedia sessions in response to bearer failure. In some examples, the wireless communication network comprises Call Session Control Function (CSCF) circuitry. The CSCF circuitry requests a dedicated bearer to serve a requested multimedia session in response to a multimedia session request for a user device received over a default bearer. The CSCF circuitry receives an error message that comprises an error code indicating the dedicated bearer could not be established. The CSCF circuitry determines when the default bearer can support the requested multimedia session based on the error code. The CSCF circuitry maintains the default bearer for the user device and establishes the requested multimedia session over the default bearer when the default bearer can support the requested multimedia session.
    Type: Application
    Filed: August 14, 2023
    Publication date: February 20, 2025
    Inventors: A. Karl Corona, Nassereddine Sabeur, Joel Lee Arends
  • Patent number: 12200018
    Abstract: Methods and systems for restricting communication services over a network. The method includes detecting a Session Initiation Protocol (SIP) register message originating from a specific network Public Land Mobile Network (PLMN) that is included in a restricted PLMN list identified by a P-Access-Network-Information header (P-ANI). The method further includes implementing a policy to remove RCS and presence capability feature tags from a subsequent SIP register message. The lack of feature tags to Serving Call Session Control Function (S-CSCF) will prohibit triggering of Third Party Registration to different application servers.
    Type: Grant
    Filed: May 12, 2023
    Date of Patent: January 14, 2025
    Assignee: T-MOBILE INNOVATION LLC
    Inventors: Saqib Badar, Mehul Jayant Shah, A. Karl Corona, Ayman Zaki
  • Patent number: 12177212
    Abstract: In a telecommunication network, a Serving Call Session Control Function (S-CSCF) may be coupled with a Fifth Generation (5G) Equipment Identity Register (EIR) via an N17? interface. In some examples, the S-CSCF can use the N17? interface instead of a diameter protocol for communicating with the 5G-EIR. The S-CSCF can send a request to the 5G-EIR including a Permanent Equipment Identifier (PEI) associated with a user equipment (UE). In response, the S-CSCF can receive identity data indicative of whether the UE is authorized, not authorized, partially authorized, or unknown. Based on the identity data, the S-CSCF can authenticate a user equipment (UE) accessing a network. In some examples, the S-CSCF may route requests between a 5G-EIR and an EIR. In some examples, this authentication step can comprise a second-level authentication to identify stolen or fraudulent devices and to prevent such devices from accessing the network.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: December 24, 2024
    Assignee: T-Mobile USA, Inc.
    Inventors: A. Karl Corona, Jim Udom, Shujaur Mufti
  • Publication number: 20240380793
    Abstract: Methods and systems for restricting communication services over a network. The method includes detecting a Session Initiation Protocol (SIP) register message originating from a specific network Public Land Mobile Network (PLMN) that is included in a restricted PLMN list identified by a P-Access-Network-Information header (P-ANI). The method further includes implementing a policy to remove RCS and presence capability feature tags from a subsequent SIP register message. The lack of feature tags to Serving Call Session Control Function (S-CSCF) will prohibit triggering of Third Party Registration to different application servers.
    Type: Application
    Filed: May 12, 2023
    Publication date: November 14, 2024
    Inventors: Saqib BADAR, Mehul Jayant SHAH, A. Karl CORONA, Ayman ZAKI
  • Publication number: 20240305676
    Abstract: A user equipment (UE) can attempt to register with an IP Multimedia Subsystem (IMS) that includes Call Session Control Functions (CSCFs), such as a Proxy CSCF (P-CSCF), an Interrogating CSCF (I-CSCF), and a Serving CSCF (S-CSCF). In situations in which IMS registration procedures may otherwise fail for the UE, due to an unreachable I-CSCF and/or S-CSCF, a P-CSCF can pseudo-register the UE with the IMS by informing the UE that the UE is registered with the IMS. If the UE attempts to initiate a service via the IMS while being pseudo-registered with the IMS, the P-CSCF can instruct other IMS elements to accept the UE and provide the service to the UE even though the UE is not fully registered with the IMS.
    Type: Application
    Filed: May 20, 2024
    Publication date: September 12, 2024
    Inventors: A. Karl Corona, Saqib Badar, Shujaur Mufti
  • Publication number: 20240259437
    Abstract: Techniques for managing termination causes for a call associated with a Policy Authorization Service of a 5G system are described herein. A telecommunications network can implement a server to determine a cause for a communication session associated with a user equipment (UE) to terminate, and include the cause in a Policy Authorization Service message. The server can identify a value representing the cause for the communication session to terminate, and add the value to the Policy Authorization Service message. The server can evaluate performance of the telecommunications network based on analysis of the causes over time.
    Type: Application
    Filed: January 30, 2023
    Publication date: August 1, 2024
    Inventor: A. Karl Corona
  • Patent number: 12021904
    Abstract: A user equipment (UE) can attempt to register with an IP Multimedia Subsystem (IMS) that includes Call Session Control Functions (CSCFs), such as a Proxy CSCF (P-CSCF), an Interrogating CSCF (I-CSCF), and a Serving CSCF (S-CSCF). In situations in which IMS registration procedures may otherwise fail for the UE, due to an unreachable I-CSCF and/or S-CSCF, a P-CSCF can pseudo-register the UE with the IMS by informing the UE that the UE is registered with the IMS. If the UE attempts to initiate a service via the IMS while being pseudo-registered with the IMS, the P-CSCF can instruct other IMS elements to accept the UE and provide the service to the UE even though the UE is not fully registered with the IMS.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: June 25, 2024
    Assignee: T-Mobile USA, Inc.
    Inventors: A. Karl Corona, Saqib Badar, Shujaur Rehman Mufti
  • Publication number: 20240129806
    Abstract: A network may include a proxy-call session control function (P-CSCF) of a communication network that is configured to determine, record, and report on call types of calls originating from user equipment associated with the communication network. In some cases, the P-CSCF may determine the call type based on radio access technology types reported by the originating user equipment and/or by a proxy control function associated with the call.
    Type: Application
    Filed: October 17, 2022
    Publication date: April 18, 2024
    Inventors: Joel Arends, Nassereddine Sabeur, Saqib Badar, A. Karl Corona
  • Patent number: 11792694
    Abstract: When initiating a Voice-over-IP (VoIP) communication session between an originating device (MO) and a terminating device (MT) on a packet-switched network, network components associated with the MO may encounter a failure when preparing resources for the session, such as a failure to establish a dedicated bearer with the MO. This might typically cause the system to abort the session. Instead, the network components are configured to detect the failure and to initiate a handover to a circuit-switched communication network so that the session may be conducted through the circuit-switched communication network. The failure may be detected by a component of a Long-Term Evolution (LTE) Radio Access Network (RAN) of the network, by a Mobility Management Entity (MME) of the network, or by some other network component. Single Radio Voice Call Continuity (SRVCC) procedures may be used to implement the handover.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: October 17, 2023
    Assignee: T-Mobile USA, Inc.
    Inventors: Kun Lu, Alan Denis MacDonald, Egil Gronstad, Hsin-Fu Henry Chiang, A. Karl Corona, Scott Francis Migaldi
  • Patent number: 11589328
    Abstract: Systems and methods for categorizing communication data are described herein. The systems and methods enable an IMS core network to register a user equipment as a 5G-capable device and store communication data in a manner that differentiates the communication data from non-5G devices. Once identified as a 5G-capable device and information that 5G coverage is available is received, the registration message from the user equipment to the IMS core is modified to configure the IMS core to store the communication data as 5G communication data rather than non-5G communication data.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: February 21, 2023
    Assignee: T-Mobile USA, Inc.
    Inventors: Muhammad Tawhidur Rahman, A. Karl Corona
  • Publication number: 20220124091
    Abstract: In a telecommunication network, a Serving Call Session Control Function (S-CSCF) may be coupled with a Fifth Generation (5G) Equipment Identity Register (EIR) via an N17? interface. In some examples, the S-CSCF can use the N17? interface instead of a diameter protocol for communicating with the 5G-EIR. The S-CSCF can send a request to the 5G-EIR including a Permanent Equipment Identifier (PEI) associated with a user equipment (UE). In response, the S-CSCF can receive identity data indicative of whether the UE is authorized, not authorized, partially authorized, or unknown. Based on the identity data, the S-CSCF can authenticate a user equipment (UE) accessing a network. In some examples, the S-CSCF may route requests between a 5G-EIR and an EIR. In some examples, this authentication step can comprise a second-level authentication to identify stolen or fraudulent devices and to prevent such devices from accessing the network.
    Type: Application
    Filed: October 15, 2020
    Publication date: April 21, 2022
    Inventors: A. Karl Corona, Jim Udom, Shujaur Mufti
  • Publication number: 20210377817
    Abstract: When initiating a Voice-over-IP (VoIP) communication session between an originating device (MO) and a terminating device (MT) on a packet-switched network, network components associated with the MO may encounter a failure when preparing resources for the session, such as a failure to establish a dedicated bearer with the MO. This might typically cause the system to abort the session. Instead, the network components are configured to detect the failure and to initiate a handover to a circuit-switched communication network so that the session may be conducted through the circuit-switched communication network. The failure may be detected by a component of a Long-Term Evolution (LTE) Radio Access Network (RAN) of the network, by a Mobility Management Entity (MME) of the network, or by some other network component. Single Radio Voice Call Continuity (SRVCC) procedures may be used to implement the handover.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 2, 2021
    Inventors: Kun Lu, Alan Denis MacDonald, Egil Gronstad, Hsin-Fu Henry Chiang, A. Karl Corona, Scott Francis Migaldi
  • Patent number: 11165833
    Abstract: A routing device of a telecommunications network can receive an initiation request of a communication session. The initiation request can include a destination identifier associated with a terminal. The routing device can query a responder for terminal-associated serving-network information. The routing device can then forward the initiation request to a serving network identified by the serving-network information. In some examples, the responder can query a registry for network-attachment information indicating a current media path associated with the terminal. The responder can provide the serving-network information based at least in part on the network-attachment information. In some examples, the destination identifier can include a global name, and the serving-network information can include an associated local name In some examples, the routing device can include an S-CSCF or ISBC, the responder can include an ENUM server, or the registry can include an HSS.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: November 2, 2021
    Assignee: T-Mobile USA, Inc.
    Inventors: A. Karl Corona, Robert Ara Kondakjian, Nassereddine Sabeur
  • Publication number: 20210029659
    Abstract: Systems and methods for categorizing communication data are described herein. The systems and methods enable an IMS core network to register a user equipment as a 5G-capable device and store communication data in a manner that differentiates the communication data from non-5G devices. Once identified as a 5G-capable device and information that 5G coverage is available is received, the registration message from the user equipment to the IMS core is modified to configure the IMS core to store the communication data as 5G communication data rather than non-5G communication data.
    Type: Application
    Filed: July 26, 2019
    Publication date: January 28, 2021
    Inventors: Muhammad Tawhidur Rahman, A. Karl Corona
  • Publication number: 20180124124
    Abstract: A routing device of a telecommunications network can receive an initiation request of a communication session. The initiation request can include a destination identifier associated with a terminal. The routing device can query a responder for terminal-associated serving-network information. The routing device can then forward the initiation request to a serving network identified by the serving-network information. In some examples, the responder can query a registry for network-attachment information indicating a current media path associated with the terminal. The responder can provide the serving-network information based at least in part on the network-attachment information. In some examples, the destination identifier can include a global name, and the serving-network information can include an associated local name In some examples, the routing device can include an S-CSCF or ISBC, the responder can include an ENUM server, or the registry can include an HSS.
    Type: Application
    Filed: November 2, 2016
    Publication date: May 3, 2018
    Inventors: A. Karl Corona, Robert Ara Kondakjian, Nassereddine Sabeur