Patents by Inventor Ngoc-Dung DAO

Ngoc-Dung DAO 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: 20200196169
    Abstract: A network data analytics (NWDA) function and method of policy optimization in a communication network are provided. The NWDA performs data analytics on the communication network traffic, and includes communication interfaces to connect to other network elements in the communication network. The method comprises the NWDA function configured to receive a request for a policy input, send instructions to network elements to obtain network performance measurement data, receive the measurement data from the network elements, and transmit a policy input based on the received measurement data.
    Type: Application
    Filed: February 20, 2020
    Publication date: June 18, 2020
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ngoc Dung DAO, Xu LI
  • Patent number: 10666458
    Abstract: A method and apparatus for connecting a user equipment (UE) to a wireless communication network such as a 5th generation network. The network supports node-level tunneling. Node-level tunnels can be pre-configured prior to receipt of UE attach requests. The tunnels can be shared by plural UEs, flows, or services. A policy function is connected to a network management function and performs tasks such as applying constraints to the node-level tunnels. A session management function pre-establishes node-level tunnels based on policy information from the policy function. Operations of network elements such as the access network node and user plane function to handle UE attachment, session establishment, and handling of mobile-originated and mobile-terminated traffic are described. Also described is a method and apparatus for packet transmission in which packets are processed according to an identified tunnel type. The tunnel type can be identified using a field in the tunnel encapsulation header.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: May 26, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD
    Inventors: Ngoc Dung Dao, Xu Li, Hang Zhang
  • Publication number: 20200154350
    Abstract: There is provided systems and methods for the grouping of UEs, such that UEs can share a UE group context or share a PDU session context or both. In this manner, network resource usage, with respect to UE context and PDU session context management, can be mitigated.
    Type: Application
    Filed: December 6, 2019
    Publication date: May 14, 2020
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ngoc Dung DAO, Xu LI
  • Patent number: 10652784
    Abstract: A method and apparatus for supporting node-level tunneling for mobile user equipment (UE) in a wireless communication network such as a 5th generation network.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: May 12, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xu Li, Ngoc Dung Dao, Aaron James Callard, Hang Zhang
  • Publication number: 20200145876
    Abstract: An aspect of the disclosure provides a method for handling delayed packets in a mobile wireless network performed by a PCF. The method includes receiving information pertaining to packet handling policy (PHP) parameters for a PDU session; and sending the PHP to other network functions for instructing devices in the user plane of the mobile wireless network how to handle delayed packets.
    Type: Application
    Filed: May 3, 2019
    Publication date: May 7, 2020
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ngoc Dung DAO, Xu LI
  • Publication number: 20200128503
    Abstract: Methods by which User Plane (UP) management information is exchanged between an Application Function (AF) supporting one or more applications and a Slice Management Function (SW) configured to manage traffic flows in a given slice of the network. The exchange of UP management information may be initiated from either the AF or the SW. In the case of AF-initiated information exchange, the UP management information provided by the AF may comprise traffic requirements of applications supported by the AF. In the case of SMF-initiated information exchange, the UP management information provided by the SM may comprise operator policy information or events, and the AF may respond with information of traffic requirements of applications supported by the AF.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 23, 2020
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xu LI, Ngoc Dung DAO
  • Patent number: 10630506
    Abstract: A method and apparatus for connecting a user equipment (UE) to a wireless communication network such as a 5th generation network. The network supports node-level tunneling. Node-level tunnels can be pre-configured prior to receipt of UE attach requests. The tunnels can be shared by plural UEs, flows, or services. A policy function is connected to a network management function and performs tasks such as applying constraints to the node-level tunnels. A session management function pre-establishes node-level tunnels based on policy information from the policy function. Operations of network elements such as the access network node and user plane function to handle UE attachment, session establishment, and handling of mobile-originated and mobile-terminated traffic are described. Also described is a method and apparatus for packet transmission in which packets are processed according to an identified tunnel type. The tunnel type can be identified using a field in the tunnel encapsulation header.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: April 21, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD
    Inventors: Ngoc Dung Dao, Xu Li, Hang Zhang
  • Patent number: 10623142
    Abstract: According to embodiments, there is provided a method apparatus for determining an encoding scheme for transmission of encoded data across a communications channel. The method includes determining the encoding scheme at a design Signal-to-Noise Ratio and evaluating a Frame Error Rate of the encoding scheme. If the FER is not within a target range, the method further includes modifying the encoding scheme until the evaluated FER is within the target range. There is further provided a method and apparatus for mapping bit labels to a plurality of symbols in a constellation, wherein the constellation are organisable into a plurality of sets and each bit label includes a plurality of bit positions. The method includes determining a distance metric between sets and merging pairs of sets according to the distance metric. The method further includes assigning a value to a bit position for bit labels of symbols in the merged set.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: April 14, 2020
    Assignee: Huawei Technologies Canada Co., Ltd.
    Inventors: Ian Marsland, Reinhard Balogun, Ramy Gohary, Halim Yanikomeroglu, Ngoc Dung Dao, Nimal Gamini Senarath
  • Publication number: 20200112907
    Abstract: The present invention provides methods and apparatus for notifying Quality of Service (QoS) information to User Equipment (UE), Users, and Application server. Embodiments of the present invention may analyze the network QoS and/or statistics of QoS parameters using one or more functions such as Network Data Analytics Function (NWDAF). Embodiments may also provide control plane (CP) functions which may send the QoS information to the UE depending on the UE subscription, application and/or network slice.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 9, 2020
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ngoc Dung DAO, Xu LI
  • Patent number: 10615844
    Abstract: A system and method for exchanging data with a network including an authorized UE that is authorized to exchange the data with the network, and an unauthorized UE that is not authorized to exchange the data with the network. The unauthorized UE operable to receive an authorization credential, and to exchange the data with the network using the received authorization credential.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: April 7, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ngoc Dung Dao, Xu Li
  • Publication number: 20200068653
    Abstract: An aspect of the disclosure provides for a method for user equipment (UE) internet protocol (IP) address management. The method includes sending by an application function (AF), a request to a policy control function (PCF), the request including information identifying traffic and an indication that a UE IP address associated with the traffic should be preserved. The method further includes sending by the PCF, to a session management function (SMF) being responsible for managing a Protocol Data Unit (PDU) session associated with the traffic, a policy and charging control (PCC) rule including the indication. In some embodiments, the request is sent by the AF to the PCF via a network exposure function (NEF). In some embodiments, the method further includes managing, by the SMF, the UE IP address according to the PCC rule. In some embodiments, the managing includes preserving the UE IP address for a PDU session associated with the traffic.
    Type: Application
    Filed: October 28, 2019
    Publication date: February 27, 2020
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xu LI, Ngoc Dung DAO, Patrice HEDE, Hang ZHANG
  • Publication number: 20200059761
    Abstract: The present invention provides systems and methods and apparatuses for enabling private communication between user equipments (UEs) in a (LAN) UE group. The UEs in the (LAN) UE group can communicate with each other using IP and/or non-IP type communication services. The communications between these UEs may take place in the form of point to point (e.g. UE to UE) communication or point to multi-point communication (e.g. UE to multiple UEs) as opposed to UE to Data Network (DN) communication.
    Type: Application
    Filed: August 14, 2019
    Publication date: February 20, 2020
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xu LI, Ngoc Dung DAO, Hang ZHANG
  • Patent number: 10567538
    Abstract: A method for managing a cache memory network according to a distributed hierarchical cache model is disclosed. The distributed hierarchical cache model includes a plurality of cache levels each corresponding to a delivery rank for delivering data content to users of the cache memory network. The method includes dividing at least one cache memory of the cache memory network into a plurality of cache segments, mapping each of the cache segments to a cache level of the distributed hierarchical cache model, and performing cache management operations over the cache memory network according to the distributed hierarchical cache model.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: February 18, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD
    Inventor: Ngoc Dung Dao
  • Publication number: 20200045753
    Abstract: A plurality of methods for unicast and group communication delivery of Downlink (DL) group communication data to a plurality of User Equipment's (UEs) are used by embodiments of this invention. These methods include two architectures wherein both architectures include a first AMF, AMF-1, which has an N1 connection to UE and both AMF-1 and a second AMF, the network control function, have an N2 connection to the RAN. In the first architecture, AMF-1 supports unicast data delivery and a second AMF, the network control function, supports GC data delivery. AMF-1 and the network control function have no direct connection between each other in the first architecture. In the second architecture, AMF-1 supports unicast data delivery and the network control function supports group communication data delivery. In the second architecture, the network control function and AMF-1 are connected by an interface.
    Type: Application
    Filed: August 4, 2019
    Publication date: February 6, 2020
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ngoc Dung DAO, Xu LI
  • Publication number: 20200029388
    Abstract: A network architecture and methods of managing packet data unit (PDU) sessions in a network are provided. The methods include PDU session establishment procedures, PDU session modification procedures, PDU session state transfer procedures, PDU session release procedures, and user equipment (UE) handover procedures.
    Type: Application
    Filed: September 27, 2019
    Publication date: January 23, 2020
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ngoc Dung DAO, Hang ZHANG, Xu LI
  • Patent number: 10542570
    Abstract: A system and method for exchanging data with a network including an authorized UE that is authorized to exchange the data with the network, and an unauthorized UE that is not authorized to exchange the data with the network. The unauthorized UE operable to receive an authorization credential, and to exchange the data with the network using the received authorization credential. A system and method for exchanging data with a network including a requesting device and a relay UE. The relay UE operable to receive a transferable relay profile associated with the requesting device, and to establish a connection with the requesting device to relay data between the network and the requesting device based on the transferable relay profile.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: January 21, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xu Li, Ngoc Dung Dao
  • Publication number: 20200015314
    Abstract: A network architecture and methods of managing packet data unit (PDU) sessions in a network are provided. The methods include PDU session establishment procedures, PDU session modification procedures, PDU session state transfer procedures, PDU session release procedures, and user equipment (UE) handover procedures.
    Type: Application
    Filed: September 16, 2019
    Publication date: January 9, 2020
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ngoc Dung DAO, Hang ZHANG, Xu LI
  • Patent number: 10531420
    Abstract: Methods by which User Plane (UP) management information is exchanged between an Application Function (AF) supporting one or more applications and a Slice Management Function (SMF) configured to manage traffic flows in a given slice of the network. The exchange of UP management information may be initiated from either the AF or the SMF. In the case of AF-initiated information exchange, the UP management information provided by the AF may comprise traffic requirements of applications supported by the AF. In the case of SMF-initiated information exchange, the UP management information provided by the SM may comprise operator policy information or events, and the AF may respond with information of traffic requirements of applications supported by the AF.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: January 7, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xu Li, Ngoc Dung Dao
  • Publication number: 20190394279
    Abstract: A method for optimizing operation of a user equipment (UE) in a wireless communications network.
    Type: Application
    Filed: June 17, 2019
    Publication date: December 26, 2019
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ngoc Dung DAO, Xu LI
  • Patent number: 10505798
    Abstract: System and method embodiments are provided for providing customized virtual networks based on SONAC. In an embodiment, a network management entity for providing a customized VN includes a SONAC module executed by a computing device that is connected to a wireless network, the SONAC module configured to receive service requirement data from the wireless network and create a service customized VN according to the service requirement data, the service requirement data describing one or more service requirements, wherein the SONAC module comprises an interface to interact with: an SDT component, the SDT component used by the SONAC module to determine a service customized logical topology; an SDRA component that maps the logical topology to physical network resources within the wireless network; and a SDP component that determines an end-to-end data transport protocol for communication between a first device and a second device via the wireless network.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: December 10, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Hang Zhang, Xu Li, Nimal Gamini Senarath, Sophie Vrzic, Ngoc-Dung Dao, Hamidreza Farmanbar