Message and system for application function influence on traffic routing

    公开(公告)号:US11711869B2

    公开(公告)日:2023-07-25

    申请号:US17230293

    申请日:2021-04-14

    CPC classification number: H04W80/12 H04M15/66 H04W40/20 H04W40/34 H04W80/10

    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. In some embodiments, the preserving includes preventing reselection of a protocol data unit (PDU) session anchor (PSA) to which the UE IP address is associated.

    Methods and systems for network slicing

    公开(公告)号:US10999739B2

    公开(公告)日:2021-05-04

    申请号:US16026563

    申请日:2018-07-03

    Abstract: An aspect of the disclosure provides a method of network slice management performed by a Communication Service Management Function (CSMF). The method includes receiving service requirements and receiving capability exposure information. The method further includes transmitting network slice requirements in accordance with the service requirements and capability exposure information. In some embodiments the capability exposure information is received from a Network Slice Management Function (NSMF). In some embodiments the network slice requirements are transmitted to the NSMF. Other aspects are directed to methods implemented by an NSMF and a Network Sub-Slice Management Function (NSSMF). Other aspects are directed to the network functions themselves.

    System and method for wireless network access protection and security architecture

    公开(公告)号:US10530573B2

    公开(公告)日:2020-01-07

    申请号:US16249232

    申请日:2019-01-16

    Inventor: Hang Zhang

    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 keys 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.

    System and method for a customized fifth generation (5G) network

    公开(公告)号:US10484877B2

    公开(公告)日:2019-11-19

    申请号:US15702428

    申请日:2017-09-12

    Inventor: Hang Zhang

    Abstract: An embodiment logical function architecture for next-generation 5G wireless networks may include a control plane comprising a software defined topology (SDT) logical entity configured to establish a virtual data-plane logical topology for a service, a software defined resource allocation (SDRA) logical entity configured to map the virtual data-plane topology to a physical data-plane for transporting service-related traffic over the wireless network, and a software defined per-service customized data plane process (SDP) logical entity configured to select transport protocol(s) for transporting the service-related traffic over a physical data-plane of the wireless network. An embodiment virtual service specific serving gateway (v-s-SGW) for next-generation 5G networks may be assigned specifically to a service being provided by a group of wirelessly enabled devices, and may be responsible for aggregating service-related traffic communicated by the group of wirelessly enabled devices.

    System and Method for a Control Plane Reference Model Framework

    公开(公告)号:US20180205640A1

    公开(公告)日:2018-07-19

    申请号:US15925412

    申请日:2018-03-19

    Inventor: Hang Zhang

    CPC classification number: H04L45/42 H04L41/12 H04L45/302 H04L45/64 H04W28/0231

    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.

    Systems and methods for downlink power control and scheduling in a wireless network

    公开(公告)号:US10028233B2

    公开(公告)日:2018-07-17

    申请号:US15176697

    申请日:2016-06-08

    Abstract: Methods and systems for providing joint power control (PC) and scheduling in a wireless network are provided. In one example, a method includes generating a near-optimal power pattern for PC and scheduling in accordance with long term channel statistics. The near-optimal PC solution may be generated by first generating a set of possible power patterns in accordance with likely scheduling scenarios, then statistically narrowing the set of possible power patterns to identify the most commonly used power patterns, and finally selecting one of the most commonly used power patterns as the near-optimal power pattern. In another example, a table of optimal PC solutions are provided for performing distributed PC and scheduling in an adaptive and/or dynamic manner.

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