Contention-based integration of device to device (D2D) networks with wireless infrastructure

    公开(公告)号:US09888506B2

    公开(公告)日:2018-02-06

    申请号:US13973307

    申请日:2013-08-22

    Inventor: Xu Li Hang Zhang

    CPC classification number: H04W76/023 H04W8/005 H04W76/14

    Abstract: Efficient D2D link integration can be achieved by allowing mobile devices to independently initiate D2D/connection-proxy discovery without re-broadcasting beacons originating from the wireless access point. A mobile station wanting to establish a D2D link may broadcast a search message to neighboring mobile stations, which may return offer messages specifying a connection quality and/or parameters of the candidate indirect connection. The requesting mobile station may then select one of the responding neighboring mobile stations through which to establish the indirect connection. Responding mobile stations may delay offer message transmission by a period that is proportional to a connection quality to reduce offer message redundancy.

    Traffic Engineering Feeder for Packet Switched Networks
    15.
    发明申请
    Traffic Engineering Feeder for Packet Switched Networks 审中-公开
    分组交换网络的交通工程馈线

    公开(公告)号:US20160269298A1

    公开(公告)日:2016-09-15

    申请号:US14643883

    申请日:2015-03-10

    Inventor: Xu Li Hang Zhang

    CPC classification number: H04L47/18 H04L45/04 H04L45/64

    Abstract: It is possible to implement traffic engineering policies in a packet switched network by dynamically configuring different transport protocols to be used over different path segments of an end-to-end path. Specifically, a controller may communicate forward information base (FIB) control signaling instructions to network nodes along an end-to-end path. The FIB signaling instructions may configure network nodes on different path segments of the end-to-end path to route a traffic flow using different path transport protocols. For example, the FIB signaling instructions may assign a link-based transport protocol to a first path segment, and a path-based or source-based transport protocol to a second path segment. Alternatively, the controller may indirectly assign transport protocols to regions/path segments by classifying regions of a packet switched network as link-preferred regions, path-preferred regions, or no-preference regions.

    Abstract translation: 通过在端到端路径的不同路径段上动态配置不同的传输协议,可以在分组交换网络中实现流量工程策略。 具体地,控制器可以沿着端到端路径向前向信息库(FIB)控制信令指令传送到网络节点。 FIB信令指令可以在端到端路径的不同路段上配置网络节点,以使用不同的路径传输协议来路由业务流。 例如,FIB信令指令可以将基于链路的传输协议分配给第一路径段,以及将路由或基于源的传输协议分配给第二路径段。 或者,控制器可以通过将分组交换网络的区域分类为链路优选区域,路径优选区域或不偏好区域来间接地将传输协议分配给区域/路径段。

    Traffic behavior driven dynamic zoning for distributed traffic engineering in SDN
    16.
    发明授权
    Traffic behavior driven dynamic zoning for distributed traffic engineering in SDN 有权
    流量行为驱动SDN中分布式流量工程的动态分区

    公开(公告)号:US09432257B2

    公开(公告)日:2016-08-30

    申请号:US14142344

    申请日:2013-12-27

    CPC classification number: H04L41/0823 H04L41/042 H04L41/0816 H04L41/12

    Abstract: System and method embodiments are provided for traffic behavior driven dynamic zoning for distributed traffic engineering (TE) in software defined networking (SDN). In an embodiment, a method in a network component for dynamic zoning for TE in SDN includes receiving at the network component network information from at least one SDN controller from a plurality of SDN controllers in a network; determining with the network component a plurality of TE zones for the network, selecting a local zone TE controller for each of the plurality of TE zones, and selecting a master TE controller according to the network information and a zoning scheme, wherein the local zone TE controller and the master TE controller are selected form one of the SDN controllers; and transmitting with the network component an indication of the local zone TE controllers, zone membership, and the master controllers to at least some of the SDN controllers.

    Abstract translation: 为软件定义网络(SDN)中的分布式流量工程(TE)提供了用于交通行为驱动的动态分区的系统和方法实施例。 在一个实施例中,用于SDN中的TE的动态分区的网络组件中的方法包括在网络中从网络中的多个SDN控制器接收来自至少一个SDN控制器的网络组件网络信息; 使用所述网络组件确定所述网络的多个TE区域,为所述多个TE区域中的每一个选择本地区域TE控制器,以及根据所述网络信息和分区方案来选择主TE控制器,其中,所述本地区域TE 控制器和主TE控制器从SDN控制器之一中选择; 以及与所述网络组件一起向所述SDN控制器中的至少一些与所述网络组件发送所述本地区域TE控制器,区域成员资格以及所述主控制器的指示。

    System and Method for Downlink Machine-To-Machine Communications
    17.
    发明申请
    System and Method for Downlink Machine-To-Machine Communications 审中-公开
    下行机器到机器通信的系统和方法

    公开(公告)号:US20160150349A1

    公开(公告)日:2016-05-26

    申请号:US14949231

    申请日:2015-11-23

    Abstract: An embodiment method for downlink machine type communications (MTC), includes receiving, at a base station, parameters including a geographic location related to a remote equipment (RE), receiving a predicate identifying the RE, determining a target zone in which the RE is located, determining a radio bearer associated with the target zone, and transmitting a data packet and the predicate by the base station on the radio bearer to a plurality of REs disposed in the target zone, the plurality of REs comprising at least the RE.

    Abstract translation: 一种用于下行链路机器类型通信(MTC)的实施例方法,包括在基站处接收包括与远程设备(RE)有关的地理位置的参数,接收标识RE的谓词,确定RE在其中的目标区域 确定与目标区域相关联的无线电承载,以及由无线电承载上的基站将数据分组和谓词发送到设置在目标区域中的多个RE,所述多个RE至少包括RE。

    Terrestrial positioning system
    18.
    发明授权

    公开(公告)号:US12200571B2

    公开(公告)日:2025-01-14

    申请号:US17170560

    申请日:2021-02-08

    Inventor: Hang Zhang

    Abstract: A method and apparatus for estimating a location using a network function. In the method, at least one positioning apparatus registers to a management function by sending a registration message and transmit a location information message containing an indication of geographic location of said positioning apparatus; the management function gets the at least one positioning apparatus registered according to the received registration message, and sends a response message including information associated with a transmission of the location information message to the at least one positioning apparatus. The location information message is transmitted by the at least one positioning apparatus to a mobile device according to the information included in the response message.

    System, method and apparatus supporting navigation

    公开(公告)号:US12190721B2

    公开(公告)日:2025-01-07

    申请号:US17169197

    申请日:2021-02-05

    Inventor: Hang Zhang

    Abstract: Methods and System for enhanced navigation and traffic management are provided. A controller obtains input indicative of conditions on a physical road, traffic status information associated with the physical road and requirements of a mobile device. Based at least in part on the input, one or more virtual lanes defining respective routes along the physical road are determined. The virtual lanes are communicated to mobile devices which follow them in place of painted lanes. The virtual lanes can be dynamically updated for example to avoid obstacles. Different lanes can correspond to different priorities of traffic.

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