Patents by Inventor Kalyan Kalepu
Kalyan Kalepu 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: 20230088323Abstract: A network operator can partition network elements, including elements of an IP Multimedia Subsystem (IMS) or Policy and Charging Rules Functions (PCRFs) into groups reserved for specific types of subscribers. When a user equipment (UE) registers with an IMS, elements of the IMS can contact a Home Subscriber Server (HSS) to determine a subscriber type associated with the UE. Based on the UE's subscriber type, an IMS element can determine an application server or other IMS element to contact about the UE based on identifying application servers or IMS elements that are also associated with the same subscriber type as the UE. Similarly, an IMS element can determine a PCRF to contact about the UE based on identifying a PCRF that is associated with the same subscriber type as the UE.Type: ApplicationFiled: November 28, 2022Publication date: March 23, 2023Inventors: Mohammed Al-Mehdar, Saqib Badar, Shujaur Mufti, Khurram Ahmad Mirza, Kalyan Kalepu
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Patent number: 11516261Abstract: A network operator can partition network elements, including elements of an IP Multimedia Subsystem (IMS) or Policy and Charging Rules Functions (PCRFs) into groups reserved for specific types of subscribers. When a user equipment (UE) registers with an IMS, elements of the IMS can contact a Home Subscriber Server (HSS) to determine a subscriber type associated with the UE. Based on the UE's subscriber type, an IMS element can determine an application server or other IMS element to contact about the UE based on identifying application servers or IMS elements that are also associated with the same subscriber type as the UE. Similarly, an IMS element can determine a PCRF to contact about the UE based on identifying a PCRF that is associated with the same subscriber type as the UE.Type: GrantFiled: June 14, 2019Date of Patent: November 29, 2022Assignee: T-Mobile USA, Inc.Inventors: Mohammed Al-Mehdar, Saqib Badar, Shujaur Mufti, Khurram Ahmad Mirza, Kalyan Kalepu
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Patent number: 11316708Abstract: A Policy and Charging Rules Function (PCRF) can maintain a mapping table that associates gateway identifiers of gateways in a packet core network with corresponding IP address ranges. Based on an IP address of user equipment (UE), the PCRF can identify which of the IP address ranges in the mapping table over the UE's IP address, and which gateway identifier is mapped to that IP address range. The PCRF can accordingly contact the identified gateway to establish a Gx session for the UE with the gateway, such as restoring a previous Gx session or establishing a new Gx session.Type: GrantFiled: June 29, 2020Date of Patent: April 26, 2022Assignee: T-Mobile USA, Inc.Inventors: Khurram Ahmad Mirza, Kalyan Kalepu, Boris Antsev
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Publication number: 20200396262Abstract: A network operator can partition network elements, including elements of an IP Multimedia Subsystem (IMS) or Policy and Charging Rules Functions (PCRFs) into groups reserved for specific types of subscribers. When a user equipment (UE) registers with an IMS, elements of the IMS can contact a Home Subscriber Server (HSS) to determine a subscriber type associated with the UE. Based on the UE's subscriber type, an IMS element can determine an application server or other IMS element to contact about the UE based on identifying application servers or IMS elements that are also associated with the same subscriber type as the UE. Similarly, an IMS element can determine a PCRF to contact about the UE based on identifying a PCRF that is associated with the same subscriber type as the UE.Type: ApplicationFiled: June 14, 2019Publication date: December 17, 2020Inventors: Mohammed Al-Mehdar, Saqib Badar, Shujaur Mufti, Khurram Ahmad Mirza, Kalyan Kalepu
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Publication number: 20200328904Abstract: A Policy and Charging Rules Function (PCRF) can maintain a mapping table that associates gateway identifiers of gateways in a packet core network with corresponding IP address ranges. Based on an IP address of user equipment (UE), the PCRF can identify which of the IP address ranges in the mapping table over the UE's IP address, and which gateway identifier is mapped to that IP address range. The PCRF can accordingly contact the identified gateway to establish a Gx session for the UE with the gateway, such as restoring a previous Gx session or establishing a new Gx session.Type: ApplicationFiled: June 29, 2020Publication date: October 15, 2020Inventors: Khurram Ahmad Mirza, Kalyan Kalepu, Boris Antsev
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Patent number: 10700882Abstract: A Policy and Charging Rules Function (PCRF) can maintain a mapping table that associates gateway identifiers of gateways in a packet core network with corresponding IP address ranges. Based on an IP address of user equipment (UE), the PCRF can identify which of the IP address ranges in the mapping table over the UE's IP address, and which gateway identifier is mapped to that IP address range. The PCRF can accordingly contact the identified gateway to establish a Gx session for the UE with the gateway, such as restoring a previous Gx session or establishing a new Gx session.Type: GrantFiled: August 23, 2018Date of Patent: June 30, 2020Assignee: T-Mobile USA, Inc.Inventors: Khurram Ahmad Mirza, Kalyan Kalepu, Boris Antsev
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Publication number: 20200044879Abstract: A Policy and Charging Rules Function (PCRF) can maintain a mapping table that associates gateway identifiers of gateways in a packet core network with corresponding IP address ranges. Based on an IP address of user equipment (UE), the PCRF can identify which of the IP address ranges in the mapping table over the UE's IP address, and which gateway identifier is mapped to that IP address range. The PCRF can accordingly contact the identified gateway to establish a Gx session for the UE with the gateway, such as restoring a previous Gx session or establishing a new Gx session.Type: ApplicationFiled: August 23, 2018Publication date: February 6, 2020Inventors: Khurram Ahmad Mirza, Kalyan Kalepu, Boris Antsev
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Patent number: 10491753Abstract: An application function (AF) of an IP Multimedia Subsystem (IMS) can be in communication with multiple Policy Control Function (PCF) domains of a telecommunication network. The AF can review attributes of a particular communication session, and identify a particular one of the PCF domains that corresponds to the attributes. The AF can then send a request about the communication session to a PCF element of the identified PCF domain over an Rx interface.Type: GrantFiled: March 27, 2018Date of Patent: November 26, 2019Assignee: T-Mobile USA, Inc.Inventors: Mohammed Al-Mehdar, Nassereddine Sabeur, Mayank Kaul, Shujaur Mufti, Kalyan Kalepu, Chakravarthi Japa
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Publication number: 20190306324Abstract: An application function (AF) of an IP Multimedia Subsystem (IMS) can be in communication with multiple Policy Control Function (PCF) domains of a telecommunication network. The AF can review attributes of a particular communication session, and identify a particular one of the PCF domains that corresponds to the attributes. The AF can then send a request about the communication session to a PCF element of the identified PCF domain over an Rx interface.Type: ApplicationFiled: March 27, 2018Publication date: October 3, 2019Inventors: Mohammed Al-Mehdar, Nassereddine Sabeur, Mayank Kaul, Shujaur Mufti, Kalyan Kalepu, Chakravarthi Japa
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Patent number: 10412128Abstract: Managing Security Parameter Information (SPIs) to prevent race condition failures begins where a system negotiates SPIs along with associated expiration times, and re-negotiates new SPIs as necessary. The system prevents race conditions that would otherwise occur when both an old SPI and a new SPI are active at the same time. The system accomplishes this by managing the storage and deletion of old SPIs such that only active SPIs are stored on the system for use by a User Equipment (UE) or Proxy Call Session Control Function (P-CSCF).Type: GrantFiled: January 17, 2019Date of Patent: September 10, 2019Assignee: T-Mobile USA, Inc.Inventors: Kalyan Kalepu, Shujaur Mufti
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Publication number: 20190158548Abstract: Managing Security Parameter Information (SPIs) to prevent race condition failures begins where a system negotiates SPIs along with associated expiration times, and re-negotiates new SPIs as necessary. The system prevents race conditions that would otherwise occur when both an old SPI and a new SPI are active at the same time. The system accomplishes this by managing the storage and deletion of old SPIs such that only active SPIs are stored on the system for use by a User Equipment (UE) or Proxy Call Session Control Function (P-CSCF).Type: ApplicationFiled: January 17, 2019Publication date: May 23, 2019Inventors: Kalyan Kalepu, Shujaur Mufti
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Patent number: 10193939Abstract: Managing Security Parameter Information (SPIs) to prevent race condition failures begins where a system negotiates SPIs along with associated expiration times, and re-negotiates new SPIs as necessary. The system prevents race conditions that would otherwise occur when both an old SPI and a new SPI are active at the same time. The system accomplishes this by managing the storage and deletion of old SPIs such that only active SPIs are stored on the system for use by a User Equipment (UE) or Proxy Call Session Control Function (P-CSCF).Type: GrantFiled: August 7, 2017Date of Patent: January 29, 2019Assignee: T-Mobile U.S.A., Inc.Inventors: Kalyan Kalepu, Shujaur Mufti
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Publication number: 20180132291Abstract: A P-CSCF (Proxy Call Session Control Function) is a component that services as an entry point into an IMS (IP multimedia subsystem) communications system. During a P-CSCF discovery process, a device is configured to obtain both an identification of a primary P-CSCF and an identification of a secondary P-CSCF. When initiating an IMS data session, a device first attempts to set up the session by communicating with the primary P-CSCF. If that fails, the device then attempts to set up the session by communicating with the secondary P-CSCF.Type: ApplicationFiled: November 4, 2016Publication date: May 10, 2018Inventors: Kalyan Kalepu, Joel Arends, Nassereddine Sabeur, Boris Antsev
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Publication number: 20170339197Abstract: Managing Security Parameter Information (SPIs) to prevent race condition failures begins where a system negotiates SPIs along with associated expiration times, and re-negotiates new SPIs as necessary. The system prevents race conditions that would otherwise occur when both an old SPI and a new SPI are active at the same time. The system accomplishes this by managing the storage and deletion of old SPIs such that only active SPIs are stored on the system for use by a User Equipment (UE) or Proxy Call Session Control Function (P-CSCF).Type: ApplicationFiled: August 7, 2017Publication date: November 23, 2017Inventors: Kalyan Kalepu, Shujaur Mufti
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Patent number: 9729588Abstract: Managing Security Parameter Information (SPIs) to prevent race condition failures begins where a system negotiates SPIs along with associated expiration times, and re-negotiates new SPIs as necessary. The system prevents race conditions that would otherwise occur when both an old SPI and a new SPI are active at the same time. The system accomplishes this by managing the storage and deletion of old SPIs such that only active SPIs are stored on the system for use by a User Equipment (UE) or Proxy Call Session Control Function (P-CSCF).Type: GrantFiled: June 2, 2015Date of Patent: August 8, 2017Assignee: T-Mobile USA, Inc.Inventors: Kalyan Kalepu, Shujaur Mufti
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Publication number: 20160127426Abstract: Managing Security Parameter Information (SPIs) to prevent race condition failures begins where a system negotiates SPIs along with associated expiration times, and re-negotiates new SPIs as necessary. The system prevents race conditions that would otherwise occur when both an old SPI and a new SPI are active at the same time. The system accomplishes this by managing the storage and deletion of old SPIs such that only active SPIs are stored on the system for use by a User Equipment (UE) or Proxy Call Session Control Function (P-CSCF).Type: ApplicationFiled: June 2, 2015Publication date: May 5, 2016Inventors: Kalyan Kalepu, Shujaur Mufti
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Patent number: 9235843Abstract: An intermediary device configured to insert at least one of user interest categories or a client device location in the header portion of a message received from a client device is described herein. The insertion enables a server receiving the message from the intermediary device to target content to the client device based on the at least one of the user interest categories or the client device location.Type: GrantFiled: September 27, 2010Date of Patent: January 12, 2016Assignee: T-Mobile USA, Inc.Inventor: Kalyan Kalepu
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Publication number: 20120079135Abstract: An intermediary device configured to insert at least one of user interest categories or a client device location in the header portion of a message received from a client device is described herein. The insertion enables a server receiving the message from the intermediary device to target content to the client device based on the at least one of the user interest categories or the client device location.Type: ApplicationFiled: September 27, 2010Publication date: March 29, 2012Applicant: T-MOBILE USA, INC.Inventor: Kalyan Kalepu