Patents by Inventor Venkata Ramesh Balabhadruni
Venkata Ramesh Balabhadruni 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: 11445560Abstract: A method of establishing a Voice over Internet Protocol, VoI P, call between a calling User Equipment, UE, and a called UE, wherein said calling UE is served by a core network via a packet-switched radio access network, PS-RAN, and wherein a bearer is to be established between said calling U E and a gateway node in said core network, over said PS-RAN, for obtaining access to an Internet Protocol, IP, multimedia subsystem, I MS, network, wherein said method comprises the steps receiving, by a an IMS Call Session Control Function, CSCF, node a notification message thereby notifying said I MS node that said VoIP call establishment is in progress and initiating, by said I MS CSCF, re-establishment of said bearer between said calling UE and said gateway node, over said PS-RAN, in case said establishment of said bearer has failed due to a temporary failure.Type: GrantFiled: October 30, 2017Date of Patent: September 13, 2022Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Ralf Keller, Afshin Abtin, Venkata Ramesh Balabhadruni, Jinyin Zhu
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Patent number: 11178173Abstract: A technique for handling an access from a user equipment (110) accessing an application function (150) is provided. As to a method aspect of the technique, the access is received via a packet core network (140) of a mobile telecommunications network (100). The application function (150) determines that the access from the user equipment (110) fulfills a predefined access pattern. The application function (150) triggers sending of a control message to the packet core network (140) in response to the determination. The control message controls the packet core network (140) to terminate a session with the user equipment (110).Type: GrantFiled: March 10, 2015Date of Patent: November 16, 2021Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Fredrik Lindholm, Venkata Ramesh Balabhadruni
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Publication number: 20200170064Abstract: A method of establishing a Voice over Internet Protocol, VoI P, call between a calling User Equipment, UE, and a called UE, wherein said calling UE is served by a core network via a packet-switched radio access network, PS-RAN, and wherein a bearer is to be established between said calling U E and a gateway node in said core network, over said PS-RAN, for obtaining access to an Internet Protocol, IP, multimedia subsystem, I MS, network, wherein said method comprises the steps receiving, by a an IMS Call Session Control Function, CSCF, node a notification message thereby notifying said I MS node that said VoIP call establishment is in progress and initiating, by said I MS CSCF, re-establishment of said bearer between said calling UE and said gateway node, over said PS-RAN, in case said establishment of said bearer has failed due to a temporary failure.Type: ApplicationFiled: October 30, 2017Publication date: May 28, 2020Inventors: Ralf Keller, Afshin Abtin, Venkata Ramesh Balabhadruni, Jinyin Zhu
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Patent number: 10326605Abstract: Methods and apparatuses for updating policy and charging rules relating to early dialogs in session initiation protocol forking in a telecommunications network. A node comprises a receiver (304), configured to receive a plurality of preliminary responses originating from a plurality of terminating end points as part of Session Initiation Protocol, SIP, forking. The node comprises an early dialog controller (314), configured, for each received preliminary response, to determine a unique identifier and to control a transmitting means, which may be a transmitter (302), to transmit a corresponding preliminary message comprising the unique identifier to a further node (400) for use as a Policy and Charging Rules Function, PCRF (200), for creating an early dialog by the further node. The receiver is further configured to receive updated data for at least one of the preliminary responses.Type: GrantFiled: July 16, 2014Date of Patent: June 18, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Ignacio Rivas Molina, Venkata Ramesh Balabhadruni, Patrik Dannebro, Rikard Eriksson, Susana Fernandez Alonso, Fredrik Lindholm
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Publication number: 20190037339Abstract: Embodiments of the present disclosure provide methods, apparatus and computer program product for facilitating location based services and/or location based policy control. A method at a first network node comprises receiving a message from a terminal connected to the first network node via non-3GPP access, the message including a local IP address or both the local IP address and a port number of the terminal; and sending geographical location related information of the terminal to an IMS network via at least a network node for policy control function of the IMS network. Methods at other network nodes and corresponding apparatus are also provided. With the embodiments, location based services and/or policy control may be provided to non-3GPP access devices.Type: ApplicationFiled: January 29, 2016Publication date: January 31, 2019Inventors: Chunmiao LIU, Venkata Ramesh BALABHADRUNI, Ping CHEN, Chunbo WANG, Chengqiong XIE
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Patent number: 10009747Abstract: A method of operating an emergency call procedure in a telecommunications network includes storing, for a user of an IMS network, emergency contact Uniform Resource Identifiers (URIs) of one or more emergency contacts of the user who may be contacted by emergency services in the event of an emergency call from the user. The method also includes receiving an emergency call from the user and providing the emergency contact URIs to a Public Safety Answering Point, PSAP.Type: GrantFiled: June 17, 2014Date of Patent: June 26, 2018Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Venkata Ramesh Balabhadruni, Fredrik Lindholm
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Publication number: 20180041495Abstract: A technique for handling an access from a user equipment (110) accessing an application function (150) is provided. As to a method aspect of the technique, the access is received via a packet core network (140) of a mobile telecommunications network (100). The application function (150) determines that the access from the user equipment (110) fulfills a predefined access pattern. The application function (150) triggers sending of a control message to the packet core network (140) in response to the determination. The control message controls the packet core network (140) to terminate a session with the user equipment (110).Type: ApplicationFiled: March 10, 2015Publication date: February 8, 2018Inventors: Fredrik Lindholm, Venkata Ramesh Balabhadruni
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Patent number: 9866672Abstract: A method is provided for use in a communication system that includes a first terminal and an emergency center. The method includes transmitting, by a second terminal, an indicator indicating that emergency service is required for the first terminal, and automatically establishing a call session between the first terminal and the emergency center in response to the indicator.Type: GrantFiled: November 8, 2013Date of Patent: January 9, 2018Assignee: TELEFONAKTIEBOLAGET LM ERISCCON (PUBL)Inventors: Venkata Ramesh Balabhadruni, Fredrik Lindholm
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Publication number: 20170214534Abstract: Methods and apparatuses for updating policy and charging rules relating to early dialogs in session initiation protocol forking in a telecommunications network. A node comprises a receiver (304), configured to receive a plurality of preliminary responses originating from a plurality of terminating end points as part of Session Initiation Protocol, SIP, forking. The node comprises an early dialog controller (314), configured, for each received preliminary response, to determine a unique identifier and to control a transmitting means, which may be a transmitter (302), to transmit a corresponding preliminary message comprising the unique identifier to a further node (400) for use as a Policy and Charging Rules Function, PCRF (200), for creating an early dialog by the further node. The receiver is further configured to receive updated data for at least one of the preliminary responses.Type: ApplicationFiled: July 16, 2014Publication date: July 27, 2017Applicant: Telefonaktiebolaget LM Ericsso (publ)Inventors: Ignacio RIVAS MOLINA, Venkata Ramesh BALABHADRUNI, Patrik DANNEBRO, Rikard ERIKSSON, Susana FERNANDEZ ALONSO, Fredrik LINDHOLM
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Publication number: 20170156045Abstract: A method of operating an emergency call procedure in a telecommunications network includes storing, for a user of an IMS network, emergency contact Uniform Resource Identifiers (URIs) of one or more emergency contacts of the user who may be contacted by emergency services in the event of an emergency call from the user. The method also includes receiving an emergency call from the user and providing the emergency contact URIs to a Public Safety Answering Point, PSAP.Type: ApplicationFiled: June 17, 2014Publication date: June 1, 2017Inventors: Venkata Ramesh BALABHADRUNI, Fredrik LINDHOLM
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Patent number: 9467907Abstract: A solution is presented that includes a method of performing a Single Radio Voice Call Continuity, SRVCC, handover of a telecommunications call established by a User Equipment, UE accessing a serving network using a Packet Switched, PS, access. The serving network includes a serving IMS network and the call is a UE-undetected emergency call anchored in the serving IMS network. The method includes receiving an indication from the serving network that the established call is a UE-undetected emergency call anchored in the serving IMS network. A SRVCC handover request to hand over the call from the PS access to a Circuit Switched, CS, access is received. Handover of the call is initiated so that an Emergency Session Transfer Number-Single Radio, E-STN-SR, is used and the call continues to be routed through the IMS network in which it is anchored.Type: GrantFiled: October 10, 2012Date of Patent: October 11, 2016Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)Inventors: Venkata Ramesh Balabhadruni, Ralf Keller, Fredrik Lindholm
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Publication number: 20160269535Abstract: A method is provided for use in a communication system that includes a first terminal and an emergency center. The method includes transmitting, by a second terminal, an indicator indicating that emergency service is required for the first terminal, and automatically establishing a call session between the first terminal and the emergency center in response to the indicator.Type: ApplicationFiled: November 8, 2013Publication date: September 15, 2016Inventors: Venkata Ramesh BALABHADRUNI, Fredrik Lindholm
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Publication number: 20150016420Abstract: A solution is presented that includes a method of performing a Single Radio Voice Call Continuity, SRVCC, handover of a telecommunications call established by a User Equipment, UE accessing a serving network using a Packet Switched, PS, access. The serving network includes a serving IMS network and the call is a UE-undetected emergency call anchored in the serving IMS network. The method includes receiving an indication from the serving network that the established call is a UE-undetected emergency call anchored in the serving IMS network. A SRVCC handover request to hand over the call from the PS access to a Circuit Switched, CS, access is received. Handover of the call is initiated so that an Emergency Session Transfer Number-Single Radio, E-STN-SR, is used and the call continues to be routed through the IMS network in which it is anchored.Type: ApplicationFiled: October 10, 2012Publication date: January 15, 2015Inventors: Venkata Ramesh Balabhadruni, Ralf Keller, Fredrik Lindholm