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).
Abstract: A method includes: receiving, by a controller of a layer-2 network abstraction comprising a plurality of nodes interconnected by links, information defining at least a performance of each link; identifying, by the controller, at least one underperforming link of the network based on the received information; and for each identified under-performing link of the network: computing, by the controller, at least one updated layer-2 protocol parameter for at least one traffic flow of the under-performing link based on the information; and sending, by the controller, the at least one updated layer-2 protocol parameter to at least one node of the under-performing link.
Abstract: A network function and a method for associating a UE of a UE group to a PDU session with in a CN. The NF establishes a shared PDU session for the UE group before all of the UEs in the UE group register with the CN and binds a UE that has not yet registered with the CN to the shared PDU session when the UE registers with the CN, provided the UE will share at least one of a UL UP connection and a DL UP connection associated with the shared PDU session. The NF may be an SMF.
Abstract: Methods, systems and architectures are described which provide at least one aggregated tunnel protocol, in addition to the existing per PDU session tunnel protocols (1, 2, . . . N). When the UE requests a new PDU session or a new QoS flow, the SMF may establish a Per PDU Session Tunnel to serve this PDU session. Alternatively, an Aggregated Tunnel may be selected to serve the PDU session or to serve the QoS flow. When a packet from a UE arrives, the receiving network function can send this packet either using a per PDU session tunnel protocol or aggregated tunnel protocol.
Abstract: Methods and apparatus for managing data content among in-network caches of a communication network are provided. In some embodiments, multiple registers are maintained for indexing cached data content. Different data content is indexed in different registers based on parameters such as popularity or content freshness. Customized popularity estimators can be applied to each register, and data content may be indexed by different registers as parameters change. Less popular content can be removed from caches as required. In some embodiments, caches can be grouped into clusters, and deletion of data content from a cache may be modified or inhibited if the cluster still requires a copy of that data content. Data content can be moved between caches of a cluster based on popularity.
Abstract: A method and apparatus for deploying a set of network caches in a communication network is provided. A set of network nodes is identified such that, for each of a set of client device locations, and for at least a number c of the set of nodes, output of a coverage cost function is no greater than a threshold. The coverage cost function receives as input a client location and one of the nodes. The set of network caches are then located at the respective set of nodes. The set of network nodes can be selected from plural candidate sets based on a utility criterion. The candidate sets can be generated by successive addition and/or removal of nodes. Information obtained from a Traffic Engineering function can be used to direct selection of the set of nodes. A cache-client association can be generated for directing clients to particular caches.
October 30, 2015
Date of Patent:
June 11, 2019
HUAWEI TECHNOLOGIES CO., LTD.
Ngoc-Dung Dao, Hamidreza Farmanbar, Xu Li
Abstract: Systems, devices and methods are provided for incorporating a quality of experience (QoE) assessment into requests or negotiations for a particular quality of service (QoS) for an application in a communications network. A network may provide service in accordance with a particular set of QoS parameters in order to meet a user's requested QoE. A user may select a particular QoE for an application depending on costs associated with the corresponding sets of QoS parameters available from the network. Functionality to determine the correlation between a user's QoE and sets of QoS parameters may be implemented primarily in a user's electronic communications device, primarily in a network device, or in both of these devices. A separate device may be used for determining the QoE and corresponding sets of QoS parameters for various services or applications.
Abstract: In one embodiment, a method of wireless load balancing includes receiving, by a communications controller from a device, a plurality of messages including a plurality of demands of a plurality of UEs and a plurality of locations of the plurality of UEs, where the plurality of demands includes a demand of a UE of the plurality of UEs, where the plurality of locations includes a location of the first UE, and where the location of the UE is in a cell and determining a utility map in accordance with the plurality of demands and the plurality of locations. The method also includes determining a recommendation of user behavior of a user of the first UE in accordance with the utility map, the location of the first UE, and the demand of the UE and transmitting, by the communications controller to the UE, the recommendation of user behavior.
Abstract: A method of MB delivery of Downlink (DL) MB Data to a plurality of Electronic Devices (EDs) connected to a (Radio) Access Network (R)AN node, the method comprises: storing the DL MB Data in a buffer of the (R)AN node; and transmitting, by the (R)AN node, the DL MB Data to the plurality of EDs.
Abstract: Application Function (AF) influenced routing for peer-to-peer (P2P) communications is provided. Core network elements correlate PDU sessions and optimize the UP path for peer-to-peer traffic. UP selection, reselection, configuration or reconfiguration can be performed in support of P2P traffic routing. P2P traffic between a pair of UEs is routed or rerouted through a bridge. The bridge may be established between the first UP and the second UP, and/or between associated RAN nodes. One or more application functions can be included along the bridge path. A policy control function (PCF) directs underlying resources to route P2P traffic via the bridge, for example in response to a trigger from the AF. A session management function (SMF) directs underlying resources to configure or reconfigure user plane data paths to route P2P traffic via the bridge. First and second SMFs of the first and second UPs can cooperate to establish the desired traffic routing.
Abstract: An aspect of the disclosure provides a method for session admission at a node in an infrastructure provider network. The method includes receiving a connection request from a user equipment not associated with a network with which the infrastructure provider network is associated and obtaining from the user equipment, an identification of a service provider with which the infrastructure provider network is associated. Access authorization is then requested from the identified service provider. Embodiments allow such a process to provide government mandated free access, or for some other service provider to pay for the service.
May 31, 2016
Date of Patent:
May 21, 2019
HUAWEI TECHNOLOGIES CO., LTD.
Nimal Gamini Senarath, Sophie Vrzic, Hang Zhang, Ngoc Dung Dao
Abstract: Network caching performance can be improved by allowing users to discover distributed cache locations storing content of a central content server. Specifically, retrieving the content from a distributed cache proximately located to the user, rather than from the central content server, may allow for faster content delivery, while also consuming fewer network resources. Content can be associated with distributed cache locations storing that content by cache location tables, which may be maintained at intermediate network nodes, such as border routers and other devices positioned in-between end-users and central content servers. Upon receiving a query, the intermediate network nodes may determine whether the content requested by the query is associated with a cache location in the cache location table, and if so, provide the user with a query response identifying the associated cache location.
Abstract: A method of transmitting PDU packets of an unstructured PD session comprises: mapping UpLink packet and QFI of unstructured PDU session, reading a QoS flow identifier (QFI) of a received UpLink PDU packet of the unstructured PD session; identifying IP header information associated with the QFI; encapsulating the UpLink PDU packet with the identified IP header information; and transmitting the encapsulated UpLink PDU packet.
Abstract: An embodiment method for network optimization includes obtaining a first request to deliver a first data to a node in a network at a first data rate; obtaining a second request to deliver the first data to the node at a second data rate; and determining a flow decision schedule for a streaming session. The determining the flow decision schedule includes: scheduling a steady-state delivery period to deliver the first data at a steady-state data rate in accordance with the first data rate; and performing a best-effort allocation in accordance with the second data rate to determine a schedule for a supplemental delivery period, concurrent with at least a portion of the steady-state delivery period, to deliver the first data at a supplemental data rate.
Abstract: A system and method is provided for mission critical communications. In an aspect, a computer-implemented method may be implemented for a node device on a network to facilitate communication between a sending device and an intended recipient device. The node device may receive from the sending device a mission critical (MC) communication directed to the intended recipient device. The node device may process the received MC communication to produce processed MC data and cache some or all of the processed MC data. The node device may transmit at least a portion of the received MC communication, the processed MC data, and/or the cached MC data to the intended recipient device.
Abstract: A method for rata adaption and a network device providing rate adaption are disclosed. In an embodiment the method includes determining a source rate adjustment in accordance with a buffer status of a radio node and transmitting towards a traffic source, a source rate adjustment request in accordance with the determined source rate adjustment.
Abstract: Methods and apparatus for determining whether to admit a virtual network using a set of communication network resources are provided. Different network resources can be owned by different infrastructure providers. Virtual network requests include a spatial profile of traffic requirements to be accommodated, and a determination is made as to whether the request can be accommodated based on available network resources. The resources include available backhaul link capacities. The resources can include computing resources for supporting service functions of the virtual network. Monitored network resource usage and traffic corresponding to the virtual network can be used to adjust future requests and accommodations. When a virtual network cannot be accommodated, a counter-offer can be made. Accommodation may incorporate monetary considerations. A feasibility computation of the admission procedure is formulated.
Abstract: In one embodiment, method for transmitting video includes determining a first video transmission schedule and selecting one frame type of a plurality of frame types to produce a selected encoded frame in accordance with the first video transmission schedule. The method also includes transmitting, by a first device to a second device, the selected encoded.
Abstract: Embodiments are provided herein for a system and methods for real-time video (or other real-time traffic) delivery, e.g., for cellular or wireless networks. The schemes herein address real-time video delivery by a joint design of the radio resource scheduler and the video encoder at the network side, and of the decoder at the users' terminals. The system design reduces frame loss and hence improves user quality of experience. In an embodiment, a radio node detects a frame of a real-time traffic flow. Upon determining that a transmission deadline corresponding to a rate for real-time traffic flow does not support a size of the frame, the transmission deadline is extended according to the size of the frame and a size of a next frame. The frame and the next frame are scheduled for forwarding within the extended transmission deadline.
Abstract: A method, apparatus and system for supporting Mobile Edge Computing (MEC) in a network such as a 5G communication network. Application Function (AF) request data is received from an AF operating in the network in support of MEC, stored in memory, and transmitted from the memory to one or more Policy Control Functions (PCFs) operating in the network. Subscribing PCFs may be notified of the receipt and storage of the data and request retrieval of the data. The data may be stored and handled by a function referred to as the Application Data Repository, or by another data repository. The operations may be performed by a network function such as but not limited to an Application Data Repository function. The function can store the AF request data and notify the PCFs. The function can handle AF requests associated with roaming UEs.
Abstract: The present application provides a channel type used to support user QoE expectations, which is, in particular, a QoS and QoE guaranteed channel (QQGC). Also provided is a related method and system for providing a QQGC. Effective bit rate (EBR), average bit rate, and maximum bit rate, are determined and used to support the channel. The EBR can be determined based on QoE reports. An application function, such as a network data analytics function provides the indication of effective bit rate. One or more portions of the application function can be provided in potentially different locations of a communications network and operatively coupled. Alternatively, application function portions can be co-located. The EBR is provided to and used by devices in the network to reserve user plane resources to support data flows at the EBR. The EBR can also be used for admission or rejection of requests for a QQGC channel.