Patents by Inventor Hang Zhang

Hang Zhang 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).

  • Patent number: 10321440
    Abstract: To effectively and efficiently provide control information, a broadcast pointer channel (BPCH) may be used to identify the type and perhaps relative location of control information that is being provided in a given frame structure, such as a sub-frame, frame, or superframe. A sub-frame (or like framing entity, such a frame or superframe) may have a BPCH and a corresponding system control information segment in which control information may reside. The system control information segment may have any number of control information blocks, wherein each control information block that is present may correspond to a particular type of control information. The BPCH is used to identify the type of control information that is present in a corresponding system control information segment, and if needed or desired, the relative locations of the various control information.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: June 11, 2019
    Assignee: Apple Inc.
    Inventors: Mo-Han Fong, Hang Zhang, Sophie Vrzic, Robert Novak, Jun Yuan, Dong-Sheng Yu
  • Patent number: 10321409
    Abstract: An embodiment of a method for network resource management comprises performing joint traffic engineering and physical layer power control on a controller and using a routing and power control optimization process that comprises a combined alternating direction method of multipliers (ADMM) process and a power management process. First and second commands are generated at the controller according to optimization parameters determined by the routing and power control optimization process. The first and second commands are transmitted from the controller to nodes connected to the controller. The first commands are for modifying transmission parameters for links between nodes and the second commands are for modifying transmission parameters for connections between nodes and user devices.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: June 11, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Wei-Cheng Liao, Mingyi Hong, Zhi-Quan Luo, Hamidreza Farmanbar, Xu Li, Hang Zhang
  • Patent number: 10321285
    Abstract: Methods and apparatus for supporting customer charging in 5G networks are provided. Monitoring functions are instantiated at selected network locations for tracking access to network services. The monitoring functions provide charging information for use in customer billing. A customer can enter a service level agreement with a particular customized method of charging for service usage, and the monitoring functions can be customized to provide charging information according to the service level agreement. Charging can vary based on factors such as time of day, network congestion, service traffic characteristics, and geographic location.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: June 11, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Nimal Gamini Senarath, Hang Zhang
  • Patent number: 10315977
    Abstract: The present invention relates to a method of preparing n-butyric acid by using poly-3-hydroxybutyrate. The method comprises following steps: placing poly-3-hydroxybutyrate in a closure means, passing hydrogen into the closure means to eliminate air after making an initial hydrogen pressure be 2 to 6 MPa, carrying out an agitation at 190 to 240° C. for reaction for 6 to 36 hours to obtain n-butyric acid. The preparation method provided by the present invention does not require a catalyst or a reaction solvent, and converts poly-3-hydroxybutyrate into n-butyric acid by a one-step reaction under a hydrogen atmosphere. The conversion rate of poly-3-hydroxybutyrate is 100%, the yield of n-butyric acid reaches up to 97%, the purity of n-butyric acid in all obtained liquid products reaches up to 98%, and no additional subsequent separation process is needed to the target product n-butyric acid.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: June 11, 2019
    Assignee: DONGGUAN UNIVERSITY OF TECHNOLOGY
    Inventors: Shimin Kang, Hang Zhang, Jietai Li, Zhilin Li, Yongjun Xu, Chenghua Sun, Nanlong Hong
  • Publication number: 20190167848
    Abstract: The invention relates to a selenium-doped hydroxyapatite and a preparation method thereof. The selenium-doped hydroxyapatite provided is a single crystal comprising a rod-like structure, a uniform morphology, and a good dispersibility. The preparation method comprises adding a mixed solution of a phosphate and a selenite dropwise to a mixed solution of a calcium salt and a dispersing agent, and reacting for 1.5-2.5 hrs at a controlled temperature of 80-90° C., to obtain a solution of a calcium phosphate amorphous precursor, followed by performing a hydrothermal reaction at 190-210° C., to obtain a selenium-doped hydroxyapatite comprising a rod-like structure.
    Type: Application
    Filed: February 6, 2018
    Publication date: June 6, 2019
    Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Shengmin Zhang, Yan Li, Hang Hao
  • Publication number: 20190168185
    Abstract: The invention relates to regenerative, solid sorbents for adsorbing carbon dioxide from a gas mixture, including air, with the sorbent including a modified polyamine and a solid support. The modified polyamine is the reaction product of an amine and an epoxide. The sorbent provides structural integrity, as well as high selectivity and increased capacity for efficiently capturing carbon dioxide from gas mixtures, including the air. The sorbent is regenerative, and can be used through multiple cycles of adsorption-desorption.
    Type: Application
    Filed: February 8, 2019
    Publication date: June 6, 2019
    Inventors: Alain GOEPPERT, Hang ZHANG, George A. OLAH, G.K. Surya Prakash
  • Publication number: 20190173722
    Abstract: The present invention provides a preamble that is inserted into an OFDMA frame and has a common sequence for all the base stations participating in a transmission. The subscriber station performs fine synchronization using the common sequence on the common preamble, and the resulting peaks will provide the locations of candidate base stations. The base station specific search is then performed in the vicinities of those peaks by using base station specific pseudo-noise sequences. With this two stage cell search, the searching window is drastically reduced. The preamble is matched to known values by a respective receiver to decode the signals and permit multiple signals to be transferred from the transmitter to the receiver. The preamble may comprise two parts, Preamble-I and Preamble-2, which may be used in different systems, including multioutput, multi-input (MIMO) systems.
    Type: Application
    Filed: January 16, 2019
    Publication date: June 6, 2019
    Inventors: Jianglei Ma, Hang Zhang, Wen Tong, Ming Jia, Peiying Zhu, Mo-Han Fong
  • Publication number: 20190173701
    Abstract: Methods and systems are provided that enable an OFDM transmitter to be used for transmitting conventional OFDM or a form of transformed OFDM. A technique is provided for transforming a coded and modulated sequence of samples prior to an IFFT that enables the transformed sequence of samples to be transmitted using conventional OFDM or transformed OFDM. The selection of a transform function for transforming the coded and modulated sequence of samples may be based on optimizing the transform function for particular operating conditions between the transmitter and receiver. In some embodiments of the invention OFDM and time transformed OFDM are multiplexed in time and/or frequency in a transmission frame. In some embodiments of the invention a pilot pattern is provided in which the pilot are sent using OFDM and data is sent using OFDM and/or transformed OFDM.
    Type: Application
    Filed: February 12, 2019
    Publication date: June 6, 2019
    Inventors: Jianglei Ma, Wen Tong, Ming Jia, Hua Xu, Peiying Zhu, Hang Zhang
  • Patent number: 10313887
    Abstract: There is provided systems and methods for Network Function Virtualization (NFV) in a control plane. The NFV framework is be used to define a plurality of virtual network functions (VNFs), each of which can correspond to a function enabling operation of a communication network. There is provided a method and system for managing a plurality of network slices in a communication network, the method comprising: instantiating a Global Control Plane set apart from the plurality of network slices, the Global Control Plane configured to at least partially manage each of the plurality of network slices.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: June 4, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Sophie Vrzic, Hang Zhang, Nimal Gamini Senarath
  • Publication number: 20190166492
    Abstract: Wireless network specific (WN-specific) key can be used to provide access protection over the radio access link. A WN-specific key may be associated with (or assigned to) a wireless network, and distributed to access points of the wireless network, as well as to user equipments (UEs) following UE authentication. The WN-specific key is then used to encrypt/decrypt data transported over the radio access link. The WN-specific key can be used in conjunction with the UE-specific keys to provide multi-level access protection. In some embodiments, WN-specific kays are shared between neighboring wireless networks to reduce the frequency of key exchanges during handovers. Service-specific keys may be used to provide access protection to machine to machine (M2M) services. Group-specific keys may be used to provide access protection to traffic communicated between members of a private social network.
    Type: Application
    Filed: January 16, 2019
    Publication date: May 30, 2019
    Inventor: Hang Zhang
  • Publication number: 20190158408
    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.
    Type: Application
    Filed: November 9, 2018
    Publication date: May 23, 2019
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xu LI, Ngoc Dung DAO, Hang ZHANG
  • Publication number: 20190158364
    Abstract: A method comprises communicating a specification of a network slice instance (NSI) that identifies a network function (NF), and operating the identified NF in accordance with the specification.
    Type: Application
    Filed: November 9, 2018
    Publication date: May 23, 2019
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Hang ZHANG, Nimal Gamini SENARATH, Chengchao LIANG, Remziye Irem BOR-YALINIZ
  • Publication number: 20190158328
    Abstract: A method and apparatus for improving channel estimation within an OFDM communication system. Channel estimation in OFDM is usually performed with the aid of pilot symbols. The pilot symbols are typically spaced in time and frequency. The set of frequencies and times at which pilot symbols are inserted is referred to as a pilot pattern. In some cases, the pilot pattern is a diagonal-shaped lattice, either regular or irregular. The method first interpolates in the direction of larger coherence (time or frequency). Using these measurements, the density of pilot symbols in the direction of faster change will be increased thereby improving channel estimation without increasing overhead. As such, the results of the first interpolating step can then be used to assist the interpolation in the dimension of smaller coherence (time or frequency).
    Type: Application
    Filed: January 23, 2019
    Publication date: May 23, 2019
    Inventors: Jianglei Ma, Ming Jia, Wen Tong, Peiying Zhu, Hang Zhang, Hua Xu, Dongsheng Yu
  • Patent number: 10298580
    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.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: May 21, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Nimal Gamini Senarath, Sophie Vrzic, Hang Zhang, Ngoc Dung Dao
  • Publication number: 20190150158
    Abstract: Systems and methods for performing traffic engineering in a communications network using a plurality of network slices are disclosed. The network slices are configured to manage a service including transmission of data along one or more flows along nodes of the communications network using a portion of physical link resources of the communications network. The method includes allocating the portion of physical link resources of the communications network associated with a first network slice of the plurality of network slices in accordance with instructions received from a traffic engineering entity associated with the first network slice.
    Type: Application
    Filed: November 8, 2018
    Publication date: May 16, 2019
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Hamidreza FARMANBAR, Sophie VRZIC, Hang ZHANG
  • Publication number: 20190149666
    Abstract: A method and system for providing Customer Service Management (CSM) a communication network, such as a 5G wireless communication network. The communication network provides at least one service involving one or more terminals serviced by the communication network. A CSM function is defined which is based upon said at least one service and customized to said at least one service, to provide service-customized CSM. CSM may provide service-based charging/billing, service-based context management, service-customized QoE control, service-customized network topology.
    Type: Application
    Filed: December 19, 2018
    Publication date: May 16, 2019
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Nimal Gamini SENARATH, Hang ZHANG, Sophie VRZIC
  • Patent number: 10291515
    Abstract: Embodiments are provided for implementing control plane functionality to configure a data plane at a plurality of network nodes. A software defined topology (SDT) component is configured to determine a data plane logical topology indicating a plurality of selected nodes and a logical architecture connecting the selected nodes. The data plane logical topology enables traffic delivery for a service or virtual network for an end-customer or operator. A software defined networking (SDN) component is configured to interact with the SDT component and map the data plane logical topology to a physical network. The mapping includes allocating network nodes including the selected nodes and network resources which enable communications for the service or virtual network and meet QoS requirement. A software defined protocol (SDP) component is configured to interact with the SDN and define data plane protocol and process functionality for the network nodes.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: May 14, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Hang Zhang
  • Patent number: 10292125
    Abstract: Methods of location tracking and location resolution are discussed for network architectures which allow devices, such as User Equipment, to communicate with different networks (e.g., different network operators) without roaming. A hierarchical Connectivity Management (CM) is provided which allows for location tracking and location resolution as devices move within and between different network boundaries. Such a hierarchy includes a Global CM which provides inter network CM, and domain CM which provides intra network CM. Some embodiments utilize virtual user CMs within the domain. In some embodiments the global CM is implemented by a third party. In other embodiments different networks inter operate by utilizing virtual network slices over non-owned infrastructure to provide what appears to be a global network by each operator.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: May 14, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Hang Zhang
  • Patent number: 10291514
    Abstract: Aspects of this disclosure provide techniques for dynamically configuring flow splitting via software defined network (SDN) signaling instructions. An SDN controller may instruct an ingress network node to split a traffic flow between two or more egress paths, and instruct the ingress network node, and perhaps downstream network nodes, to transport portions of the traffic flow in accordance with a forwarding protocol. In one example, the SDN controller instructs the network nodes to transport portions of the traffic flow in accordance with a link-based forwarding protocol. In other examples, the SDN controller instructs the network nodes to transport portions of the traffic flow in accordance with a path-based or source-based transport protocol.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: May 14, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xu Li, Hang Zhang
  • Publication number: 20190138637
    Abstract: In some embodiments, the disclosed subject matter involves online, or Web-based, automated assistance with documents using examples, and, more specifically, to providing an online user with automatic and quality ranked examples of content that are related to the context of a document that the user is drafting. The quality criteria may be used to train a model to assist in ranking candidate examples. An embodiment uses a resume assistant add-in to a document editor to provide relevant work experience examples to the user to be rendered on a display in proximity to a resume being edited. The add-in communicates with a backend server via an API, where the backend serve pre-processes available content and stores candidate examples having user selectable criteria in key-value form. Other embodiments are described and claimed.
    Type: Application
    Filed: November 7, 2017
    Publication date: May 9, 2019
    Inventors: Deirdre Hogan, Hang Zhang, Kylan Matthew Nieh