Patents by Inventor Devaki Chandramouli

Devaki Chandramouli 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: 20190313310
    Abstract: In some example embodiments, there may be provided a method that includes receiving, at a user equipment while being served by a first system and during protocol data unit session establishment or modification procedure, a message including an access point name aggregate maximum bit rate value; and when there is an inter-system change from the first system to the second system, setting, at the user equipment, the access point name aggregate maximum bit rate value of a session management context for the second system to the received access point name aggregate maximum bit rate value received while being served by the first system. Related systems, methods, and articles of manufacture are also described.
    Type: Application
    Filed: March 19, 2019
    Publication date: October 10, 2019
    Inventors: Sung Hwan Won, Devaki Chandramouli
  • Publication number: 20190313216
    Abstract: Various communication systems may benefit from being able to communicate without requiring certain identifiers to be assigned. For example, certain wireless communication systems may benefit from machine type communication using mobile originated short messaging service without a mobile station international subscriber directory number. A method can include preparing, at a user equipment, a mobile originated short message service message. The method can also include identifying, in the message, a particular external identifier from a set of external identifiers assigned to an application.
    Type: Application
    Filed: July 7, 2017
    Publication date: October 10, 2019
    Inventors: Curt WONG, Devaki CHANDRAMOULI, Ulrich WIEHE, Raymond JONG-A-KIEM
  • Patent number: 10432518
    Abstract: Various communication systems may benefit from improvements in communication flow. For example, a network may benefit from packet flow optimization. A method can include receiving a flow at an entity of a communication system having a virtualized control plane. The method can also include dynamically deciding how to route the flow to an entity selected from a group of entities comprising at least one virtualized part of an entity. The method can further include routing the flow as decided.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: October 1, 2019
    Assignee: NOKIA SOLUTIONS AND NETWORKS OY
    Inventors: Juha Antero Rasanen, Devaki Chandramouli
  • Publication number: 20190297541
    Abstract: Systems, methods, apparatuses, and computer program products for interworking between bearer-less networks and bearer based networks are provided. One method includes receiving, by a network entity in a bearer-less network, a context request to obtain user equipment context information for a user equipment moving from the bearer-less network to a bearer-based network. The method may further include providing a context response comprising the context information to a network entity in the bearer-based network, the context information used to establish bearers for the user equipment to obtain internet protocol (IP) based services.
    Type: Application
    Filed: June 11, 2019
    Publication date: September 26, 2019
    Inventors: Devaki CHANDRAMOULI, Rainer LIEBHART
  • Publication number: 20190261435
    Abstract: Various communication systems may implement network management tools to help manage registration requests from a user equipment. For example, network functions in a communication system with a shared data layer may be used to manage requests from the user equipment. A method may include transmitting a request from a user equipment to a network function. The method may also include receiving at the user equipment a temporary identification from the network function The temporary identification comprises an identifier that helps locate a shared data layer function that stores context information for the user equipment. In addition, the method may include transmitting from the user equipment a subsequent request comprising the temporary identification to another network function or the network function.
    Type: Application
    Filed: November 3, 2017
    Publication date: August 22, 2019
    Inventors: Devaki CHANDRAMOULI, Alessio CASATI
  • Patent number: 10355836
    Abstract: In some example embodiments, there is provided a method. The method may include generating, by a network node, a message including an indication of whether a bearer is at least one of a default bearer or a dedicated bearer; and sending, by the network node, the generated message, wherein the generated message is sent to a base station to enable the base station to control assignment of the bearer to a macrocell when the indication represents that the bearer is a default bearer. Related systems, methods, and articles of manufacture are also described.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: July 16, 2019
    Assignee: Nokia Technologies Oy
    Inventors: Devaki Chandramouli, Tsunehiko Chiba
  • Publication number: 20190215302
    Abstract: Various communication systems may benefit from an improved signaling protocol. For example, machine-to-machine communications in a network may benefit from improved signaling and security. A method includes establishing a secure data transmission path for an application. The secure data transmission path is used to transmit data between a user equipment and a network element. The network entity includes a gateway or an application server. The method also includes transmitting data for the application over the secure data transmission path using a pre-configured radio bearer. The radio bearer is pre-configured for data transmission between the user equipment and an access node located between the user equipment and the network element. In addition, the method includes receiving a response message at the user equipment from the network element through the secure data transmission path.
    Type: Application
    Filed: May 13, 2016
    Publication date: July 11, 2019
    Inventors: Devaki CHANDRAMOULI, Rainer LIEBHART
  • Publication number: 20190200208
    Abstract: A method, apparatus and computer program product are provided in order to cause a redirection request to be provided by an access and mobility management function (AMF) to one or more access nodes to cause at least some of user equipment returning from an idle mode to be redirected from the AMF to an alternate AMF within a same AMF set. In response to a subsequent determination to stop redirection, the method, apparatus and computer program product also cause a cease redirection request to be provided by the AMF to one or more access nodes in order to stop redirection of user equipment returning from the idle mode to the alternate AMF.
    Type: Application
    Filed: October 8, 2018
    Publication date: June 27, 2019
    Inventor: Devaki CHANDRAMOULI
  • Patent number: 10334485
    Abstract: Systems, methods, apparatuses, and computer program products for interworking between bearer-less networks and bearer-based networks are provided. One method includes receiving, by a network entity in a bearer-less network, a context request to obtain user equipment context information for a user equipment moving from the bearer-less network to a bearer-based network. The method may further include providing a context response comprising the context information to a network entity in the bearer-based network, the context information used to establish bearers for the user equipment to obtain internet protocol (IP) based services.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: June 25, 2019
    Assignee: NOKIA SOLUTIONS AND NETWORKS OY
    Inventors: Devaki Chandramouli, Rainer Liebhart
  • Publication number: 20190182771
    Abstract: Various communication systems can benefit from signaling optimization. For example, communication systems including fourth generation (4G) and fifth generation (5G) networks may benefit from network signaling optimization for light connected mode. A method can include identifying, by a device, that a user equipment has left an area. The method can also include starting, by the device, a suspend procedure for the user equipment based on identifying that the user equipment has left the area.
    Type: Application
    Filed: July 3, 2017
    Publication date: June 13, 2019
    Inventors: Sean KELLEY, Devaki CHANDRAMOULI, Philippe GODIN
  • Publication number: 20190174003
    Abstract: Various communication systems may benefit from improved voice call support. For example, it may be helpful for a user equipment in a first radio access technology that may not support voice calls to initiate a voice call with a second radio access technology. A method includes initiating a voice call between a user equipment to an entity in a second radio access technology cell. The user equipment is located in a first radio access technology cell. The method also includes registering the user equipment with the second radio access technology cell. In addition, the method includes conducting the voice call with the entity via the second radio access technology cell.
    Type: Application
    Filed: July 28, 2017
    Publication date: June 6, 2019
    Inventors: Devaki CHANDRAMOULI, Curt WONG
  • Publication number: 20190124623
    Abstract: Embodiments of the present disclosure provide methods, apparatus and computer program products for providing broadcast/multicast services.
    Type: Application
    Filed: April 28, 2016
    Publication date: April 25, 2019
    Inventors: Xiang XU, Devaki CHANDRAMOULI, David NAVRATIL, Curt WONG
  • Patent number: 10257038
    Abstract: A method and apparatus can be configured to transmit first policy rules to a packet-data-network gateway. The first policy rules are configured to be installed on the packet-data-network gateway. The first policy rules are configured to enable the packet-data-network gateway to create first route-header information. The method can also include transmitting second policy rules to an interworking gateway. The second policy rules are configured to be installed on the interworking gateway. The second policy rules are configured to enable the interworking gateway to create second route-header information.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: April 9, 2019
    Assignee: NOKIA SOLUTIONS AND NETWORKS OY
    Inventors: Rainer Liebhart, Devaki Chandramouli
  • Publication number: 20190058767
    Abstract: Various communication systems may benefit from improved handover procedures. For example, certain handover procedures involving edge clouds in a 5G or LTE network may benefit from a more seamless handover during communication. A method may include receiving at a first application server located in a first cloud a handover notification that a user equipment is moving to a radio network being served by a second application server located in a second cloud, where the application server is running an application session for the user equipment. The method may also include transferring the application session to the second application server.
    Type: Application
    Filed: January 22, 2016
    Publication date: February 21, 2019
    Inventors: Devaki CHANDRAMOULI, Rainer LIEBHART
  • Publication number: 20190053028
    Abstract: Methods and apparatus, including computer program products, are provided for controlling emergency calling. In some example embodiments, there may be provided a method that includes receiving, at a user equipment, an indication for controlling whether the user equipment makes an emergency call over a fifth generation radio access technology or over another radio access technology as a fallback; and making, by the user equipment, the emergency call based on the received indication. Related systems, methods, and articles of manufacture are also described.
    Type: Application
    Filed: August 9, 2018
    Publication date: February 14, 2019
    Inventors: Devaki CHANDRAMOULI, Laurent THIEBAUT, Miikka POIKSELK√Ą, Sankaran Chithur BALASUBRAMANIAM, Curt WONG
  • Patent number: 10200908
    Abstract: Methods, apparatuses, system and computer program product for activation and/or deactivation of bearers for a group of devices are disclosed. The method comprises receiving an attach request for a device belonging to a group of devices, obtaining an identity of the group of devices, allocating a first bearer identity for the group of devices, and sending the identity of the group and the first bearer identity to a first network element, wherein the first network element is involved in transmission of user data of the group of devices.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: February 5, 2019
    Assignee: NOKIA SOLUTIONS AND NETWORKS OY
    Inventors: Devaki Chandramouli, Rainer Liebhart, Wei Lu, Xiao Tang Xie, Robert Zaus
  • Publication number: 20180375902
    Abstract: Systems, methods, apparatuses, and computer program products for providing IMS level awareness of high latency device are provided. One method, when a UE attaches to EPC, receiving, at a network node, an indication that the UE is a high latency device. The method may also include assigning, to the UE, an IP address selected from a special IP address range that is designated specifically for high latency devices. When the UE performs IMS registration, the method may include determining that the UE is a high latency UE based on the UE's IP address provided with the IMS registration request and assigned during the EPC attach procedure.
    Type: Application
    Filed: December 21, 2016
    Publication date: December 27, 2018
    Applicant: NOKIA SOLUTIONS AND NETWORKS OY
    Inventors: Curt WONG, John Juha Antero RASANEN, Peter LEIS, Devaki CHANDRAMOULI, Alexander MILINSKI, Martin OETTL
  • Patent number: 10165504
    Abstract: An example technique may include determining, by a first base station in a wireless network, a user device has transitioned from an active state to an idle state, determining, by the first base station, a list of base stations and a list of cells corresponding to the list of base stations representing a tracking area for the user device based on a signal received from at least one second base station, the signal received from the at least one second base station including an indication of an amount of activity on at least one boundary between the at least one second base station and a plurality of third base stations, and controlling sending, from the first base station to the user device, a signal including at least one of the list of base stations and the list of cells as a tracking area for the user device.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: December 25, 2018
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Ingo Viering, Devaki Chandramouli, Lei Du, Yang Liu
  • Publication number: 20180359675
    Abstract: A method of control plane messaging between a user equipment and a network element in a core network in which Non-Access Stratum protocol layer messages are sent in a Non-Access Stratum protocol layer wherein an Ethernet convergence sublayer is provided between the Non-Access Stratum protocol layer and a radio protocol layer. Systems, apparatuses, and computer program products for control plane messaging are also provided.
    Type: Application
    Filed: September 27, 2016
    Publication date: December 13, 2018
    Inventors: Devaki CHANDRAMOULI, Rainer LIEBHART, Maximilian RIEGEL
  • Publication number: 20180332440
    Abstract: An apparatus of a communication network performs processing (10) for a group message to be sent to a plurality of devices. The group message includes an application layer content and a group identification identifying the plurality of devices. The apparatus performs communication (20) for sending the group message to the plurality of devices by using a protocol for enabling sending the group message in broadcast data to the plurality of devices. The protocol may enable sending the group message in multimedia broadcast/multicast service data or cell broadcast service data to the plurality of devices.
    Type: Application
    Filed: July 5, 2018
    Publication date: November 15, 2018
    Inventors: Devaki Chandramouli, Rainer Liebhart