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    Restoration of a PDN connection at PGW failure
    71.
    发明授权
    Restoration of a PDN connection at PGW failure 有权

    公开(公告)号：US11870854B2

    公开(公告)日：2024-01-09

    申请号：US18026844

    申请日：2021-09-20

    Applicant: Telefonaktiebolaget LM Ericsson (publ)

    Inventor： Yong Yang

    IPC: G06F15/16 ,  H04L67/141 ,  H04L61/4511

    CPC classification number: H04L67/141 ,  H04L61/4511

    Abstract: A method of operation of a cellular communications system is disclosed. The method comprises: at a MME: receiving an attach request from a UE; sending a location update request to a HSS; receiving a location update acknowledgement; sending, to a DNS, a DNS query request comprising an APN FQDN; receiving a DNS query response comprising information that indicates candidate PGWs that satisfy the DNS query request and at least two PGWs belonging to a same PGW set; selecting the first PGW; sending, to a SGW, a first create session request that comprises information that indicates the first PGW; receiving a first create session response; sending an attach accept to the UE; and at the SGW: receiving the first create session request from the MME; forwarding the first create session request to the first PGW; receiving the first create session response; and forwarding the first create session response to the MME.

    Functions and method for handling a credit pool of service units
    75.
    发明授权
    Functions and method for handling a credit pool of service units 有权

    公开(公告)号：US11671803B2

    公开(公告)日：2023-06-06

    申请号：US17354350

    申请日：2021-06-22

    Applicant: Telefonaktiebolaget LM Ericsson (publ)

    Inventor： Yong Yang ,  Ioannis Sapountzis ,  Jiehong Yang

    IPC: H04W4/24 ,  H04L12/14 ,  H04M15/00

    CPC classification number: H04W4/24 ,  H04L12/1407 ,  H04M15/61 ,  H04M15/66 ,  H04M2215/32

    Abstract: The embodiments herein relate to a method performed by a Control Plane (CP) function for handling a credit pool comprising granted service units to be used by multiple services. The multiple services are grouped in at least one first Rating Group (RG). The CP function creates an individual Usage Reporting Rule (URR) for each of the at least one first RG. Each individual URR comprises a first credit pool threshold. The CP function provides the individual URRs to a User Plane (UP) function. The CP function creates a Usage Reporting Rule for the Credit Pool (URR CRPL). The URR CRPL comprises instructions to the UP function to aggregate service unit usage for all individual URRs for all first RGs. The URR CRPL further comprises the first credit pool threshold. The CP function provides the URR CRPL to the UP function.

    Conditional packets forward control rules
    76.
    发明授权
    Conditional packets forward control rules 有权

    公开(公告)号：US11641611B2

    公开(公告)日：2023-05-02

    申请号：US17533781

    申请日：2021-11-23

    Applicant: Telefonaktiebolaget LM Ericsson (publ)

    Inventor： Yong Yang ,  Stefan Rommer ,  Jan Backman

    IPC: H04W40/02

    Abstract: Disclosed herein is a method for implementing conditional packet forwarding control rules, performed by User Plane Function (UPF). The method comprises: receiving, from a Control Plane Function (CPF) a packet forwarding control rule comprising one or more rule enforcement conditions; and applying the packet forwarding control rule according to the rule enforcement condition(s).

    Secondary Authorization at PDU Session Establishment for Home Routed Roaming
    77.
    发明申请
    Secondary Authorization at PDU Session Establishment for Home Routed Roaming 有权

    公开(公告)号：US20230112860A1

    公开(公告)日：2023-04-13

    申请号：US18072803

    申请日：2022-12-01

    Applicant: Telefonaktiebolaget LM Ericsson (publ)

    Inventor： Juying Gan ,  Yunjie Lu ,  Yong Yang

    IPC: H04W80/10 ,  H04W76/11 ,  H04W12/06

    Abstract: Exemplary embodiments include methods for establishing a user-requested protocol data unit (PDU) session in a user's visited public land mobile network (VPLMN), by a session management function (V-SMF) in the VPLMN. Such methods include receiving, from an access and mobility management function (AMF) in the VPLMN, a PDUSession_CreateSMContext Request to establish the PDU session to be routed through the user's home PLMN (HPLMN). The PDUSession_CreateSMContext Request identifies an SMF (H-SMF) in the user's HPLMN. Such methods include sending, to the identified H-SMF, a PDUSession_Create Request to create the PDU session. The PDUSession_Create Request includes an identifier of a session management (SM) context, in the V-SMF, that is associated with the PDU session. Such methods include receiving, from the H-SMF, a PDUSession_Update Request that includes an identifier of an SM context, in the H-SMF, that is associated with the PDU session. Embodiments also include complementary methods performed by the H-SMF.

    SYSTEMS AND METHODS TO MEASURE THE NUMBER OF PACKETS IN CUPS
    78.
    发明申请
    SYSTEMS AND METHODS TO MEASURE THE NUMBER OF PACKETS IN CUPS 有权

    公开(公告)号：US20220329530A1

    公开(公告)日：2022-10-13

    申请号：US17634261

    申请日：2020-08-17

    Applicant: Telefonaktiebolaget LM Ericsson (publ)

    Inventor： Yong Yang ,  Erik Wikström

    IPC: H04L47/2408 ,  H04L43/0894 ,  H04L45/00 ,  H04W28/10 ,  H04W24/08

    Abstract: Systems and methods to measure the number of packets in Control/User Plane Separation, CUPS, are provided. In some embodiments, a method performed by a Control Plane, CP, entity includes: determining that packet counting should be performed by a User Plane, UP, entity; providing measurement instructions to the UP entity for counting packets and identifying a recipient of a packet count if the CP entity is not the recipient; and, if the CP entity is the recipient of the packet count, receiving, from the UP entity, a packet count. In this way, a CP function is able to instruct a UP function to perform a measurement in terms of packets, e.g., a measurement of the number of packets transmitted.

    NETWORK FUNCTION HANDLING IN THE CONTEXT OF INTER-MANAGEMENT FUNCTION MOBILITY
    79.
    发明申请
    NETWORK FUNCTION HANDLING IN THE CONTEXT OF INTER-MANAGEMENT FUNCTION MOBILITY 有权

    公开(公告)号：US20220279392A1

    公开(公告)日：2022-09-01

    申请号：US17747370

    申请日：2022-05-18

    Applicant: Telefonaktiebolaget LM Ericsson (publ)

    Inventor： Qian Chen ,  Yong Yang

    IPC: H04W36/00 ,  H04W8/02 ,  H04W8/26 ,  H04W48/18 ,  H04W8/12

    Abstract: A method for a target mobility management entity and a target mobility management entity for executing the method in a core network to communicate network function (NF) utilization information with a source mobility management entity during a change of mobility management entity are disclosed. The method comprises: receiving at least one old NF identifier (ID) from the source mobility management entity that corresponds to an old NF entity serving a user equipment (UE); determining to either use the at least one old NF ID or to use at least one new NF ID that corresponds to a new NF entity of a same NF type as the old NF entity; and communicating, to the source mobility management entity, information that indicates to the source mobility management entity whether the target mobility management entity uses the at least one old NF ID or uses the at least one new NF ID.

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