Patents by Inventor Wenliang Xu

Wenliang Xu 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).

  • Publication number: 20240147313
    Abstract: Methods and systems for transferring monitoring event information during a mobility procedure are provided. According to one aspect, a method for transferring monitoring event information during a mobility procedure comprises, at a first network node: receiving and storing subscription information indicating that a second network node has subscribed to get notification when there is a data delivery failure involving a User Equipment (UE), followed by the UE becoming reachable; detecting a data delivery failure involving the UE, and setting a flag to indicate that a data delivery failure involving the UE has occurred; receiving, from a third network node, a mobility related request; sending, to the third network node, a response to the mobility related request, comprising an indication that the third network node should notify the second network node when the UE becomes reachable and/or when then UE enters the IDLE state.
    Type: Application
    Filed: January 8, 2024
    Publication date: May 2, 2024
    Inventors: Yong Yang, Wenliang Xu, Yunjie Lu
  • Publication number: 20240137422
    Abstract: A first method performed by a first network function implementing Edge Enabler Server (EES). The first method comprises receiving a first request message comprising information regarding exposure context information, from a second network function implementing Edge Application Server (EAS). The first method further comprises transmitting a second request message for retrieving the exposure context information to a third network function implementing EES, in response to the information regarding exposure context information. The first method further comprises to receive a first response message including the retrieved exposure context information from the third network function. The first method further comprises to transmit a second response message including information regarding the retrieved exposure context information to the second network function. The disclosed techniques offer an option to transfer EDGE-3 exposure context between the EESs so that the existing subscriptions can be re-used.
    Type: Application
    Filed: February 4, 2022
    Publication date: April 25, 2024
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Wenliang XU
  • Publication number: 20240121591
    Abstract: Method and apparatus in which a network exposure node receives, from a server, a first request for monitoring communication failure for at least one terminal device. The network exposure node obtains a connection identity (ID) for identifying a connection between the at least one terminal device and the server, based on the received first request. The network exposure node sends, to a subscriber management node or a policy decision node, a second request for monitoring communication failure for the at least one terminal device. The second request includes the obtained connection ID.
    Type: Application
    Filed: December 15, 2023
    Publication date: April 11, 2024
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Wenliang XU, Juying GAN, Yunjie LU
  • Publication number: 20240098189
    Abstract: Methods and apparatuses for data transmission. A method implemented at a first network function may comprise obtaining information related to network slice selection; and sending a reroute message to an access network node, wherein the reroute message including a container comprising at least one information element of the information related to network slicing selection.
    Type: Application
    Filed: November 30, 2023
    Publication date: March 21, 2024
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Wenliang XU, Susana FERNANDEZ ALONSO
  • Patent number: 11910287
    Abstract: A method implemented at a network exposure node is provided. The method includes: receiving, from a first node, a first message for deleting an event subscription for at least one user equipment, UE; determining whether the at least one UE is an individual UE or a group member UE; sending a second message to a second node, when the at least one UE is a group member UE, wherein the second message includes UE identification information of the at least one UE.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: February 20, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Wenliang Xu
  • Publication number: 20240056871
    Abstract: Methods and apparatuses for resolving an issue in resource allocation status subscription for an application related function (ARF). A method of operation of the ARF comprises transmitting a request to an exposure function (EF). Herein, the request comprises a resource allocation confirmation indication that indicates whether a resource allocation status notification is required and a resource allocation status feature that indicates whether the ARF supports a resource allocation status. The resource allocation status notification is used to indicate resource allocation success or resource allocation failure. The method further comprises receiving, from the EF, a response comprising a status response feature that indicates whether both the ARF and the EF support the resource allocation status.
    Type: Application
    Filed: January 14, 2022
    Publication date: February 15, 2024
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Wenliang XU
  • Publication number: 20240056321
    Abstract: The embodiments herein relate to methods, network functions, and computer readable medium for handling dynamic group membership for an application group in a mobile communication system. In one embodiment, there proposes a method performed by a network function implementing a policy control function, comprising: receiving, from a network function implementing a terminal management function and/or a network function implementing a data repository function, a notification message indicating one or more changed application groups, wherein the notification message comprises one or more internal group identifiers each of which identifies respective one of the one or more changed application groups. With embodiments herein, it enables the PCF to properly handle all the service procedures that are related to the UE subscription to respective application groups.
    Type: Application
    Filed: December 18, 2020
    Publication date: February 15, 2024
    Inventors: Wenliang Xu, Fuencisla Garcia Azorero, Susana Fernandez Alonso
  • Publication number: 20240056906
    Abstract: Embodiments of the present disclosure provide method and apparatus for service continuity. A method performed by an edge enabler client comprises detecting that application context relocation (ACR) is required. The method further comprises setting an information element indicating a type of service continuity in an ACR request message. The method further comprises sending the ACR request message to an edge enabler server.
    Type: Application
    Filed: May 17, 2022
    Publication date: February 15, 2024
    Inventor: Wenliang Xu
  • Patent number: 11902838
    Abstract: Methods and systems for transferring monitoring event information during a mobility procedure are provided. According to one aspect, a method for transferring monitoring event information during a mobility procedure comprises, at a first network node: receiving and storing subscription information indicating that a second network node has subscribed to get notification when there is a data delivery failure involving a User Equipment (UE), followed by the UE becoming reachable; detecting a data delivery failure involving the UE, and setting a flag to indicate that a data delivery failure involving the UE has occurred; receiving, from a third network node, a mobility related request; sending, to the third network node, a response to the mobility related request, comprising an indication that the third network node should notify the second network node when the UE becomes reachable and/or when then UE enters the IDLE state.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: February 13, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yong Yang, Wenliang Xu, Yunjie Lu
  • Patent number: 11882234
    Abstract: Methods and apparatuses for data transmission. A method implemented at a first network function may comprise obtaining information related to network slice selection; and sending a reroute message to an access network node, wherein the reroute message including a container comprising at least one information element of the information related to network slicing selection.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: January 23, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Wenliang Xu, Susana Fernandez Alonso
  • Publication number: 20240015529
    Abstract: Embodiments of the present disclosure provide method and apparatus for user plane path management. A method performed by an edge enabler server comprises receiving a first request from an edge application server. The first request comprises at least one identifier of at least one user equipment and an information element for indicating to the edge enabling server a request for delegation of user plane path management related to the at least one user equipment. The method further comprises sending a first response to the edge application server.
    Type: Application
    Filed: August 13, 2021
    Publication date: January 11, 2024
    Inventor: Wenliang Xu
  • Publication number: 20230422004
    Abstract: Embodiments include methods of updating a background data transfer (BDT) policy negotiated between an application function (AF) and a core network (CN) of a telecommunication network. Such methods can be performed by a Policy Control Function (PCF) of the CN and can include, in response to receiving a notification of degraded network performance of a network area, determining that the negotiated BDT policy is affected by the degraded network performance and an Application Service Provider (ASP) associated with the negotiated BDT policy requested a warning notification. Such methods can include determining, at least based on operator policies, updated BDT policy information for the negotiated BDT policy, wherein the updated BDT policy information comprises at least one of the following: at least one candidate BDT policy, and updated conditions for the negotiated BDT policy. Such methods can include sending the updated BDT policy information to the AF.
    Type: Application
    Filed: September 6, 2023
    Publication date: December 28, 2023
    Inventors: Antonio Iniesta Gonzalez, Wenliang Xu, Susana Fernandez Alonso, Miguel Angel Garcia Martin, Miguel Angel Puente Pestaña, Maria Belen Pancorbo Marcos
  • Publication number: 20230388395
    Abstract: Methods performed by an Edge Data Network (EDN) and a User Equipment (UE) for enabling Application Context Change (ACR) are disclosed. More specifically, methods performed by a UE and an EDN node for enabling ACR are provided. The method disclosed herein can provide solutions to many open issues in the Third-Generation Partnership Project standard with respect to applying Application Function (AF) influence during an ACR.
    Type: Application
    Filed: September 28, 2021
    Publication date: November 30, 2023
    Inventor: Wenliang Xu
  • Publication number: 20230388268
    Abstract: A method for a user equipment (UE) service management network element in a communication network, comprising: receiving a first request, and in response to determining that the first request is to request the UE service management network element to be an intermediate UE service management network element for a service of a UE, sending a second request to another UE service management network element indicated in the first request, and receiving a response corresponding to the second request, wherein the response comprises Internet Protocol (IP) address information of the UE.
    Type: Application
    Filed: June 22, 2021
    Publication date: November 30, 2023
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yunjie LU, Wenliang XU
  • Publication number: 20230370527
    Abstract: The present disclosure provides a method in a network node implementing an Edge Enabler Server, EES. The method includes: transmitting, to an Edge Configuration Server, ECS, a registration request or a registration update request containing one or more Data Network Access Identifiers, DNAIs, associated with an Edge Application Server, EAS, or the EES. The EAS is registered with the EES.
    Type: Application
    Filed: August 20, 2021
    Publication date: November 16, 2023
    Inventor: Wenliang Xu
  • Publication number: 20230370834
    Abstract: Various embodiments of the present disclosure provide methods and apparatuses for improved capability exposure at an edge enabler entity. The method implemented at the edge enabler entity comprises receiving a request for an exposure capability of 3GPP core network from an edge application entity, the request comprising a user equipment, UE, group identifier identifying a group of UEs. The method further comprises communicating with the 3GPP core network based on the request, and transmitting a response to the edge application entity.
    Type: Application
    Filed: August 27, 2021
    Publication date: November 16, 2023
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Wenliang XU
  • Publication number: 20230359515
    Abstract: Embodiments of the present disclosure provide method and apparatus for API management. A method performed by a first network function. The method comprises sending a first service application programming interface (API) discover request to a second network function. The method further comprises receiving a first service API discover response from the second network function. The first service API discover response comprises location information of at least one API exposing function providing the discovered service API.
    Type: Application
    Filed: September 28, 2021
    Publication date: November 9, 2023
    Inventor: Wenliang Xu
  • Publication number: 20230353498
    Abstract: Various embodiments of the present disclosure provide a method for traffic detection. The method which may be performed by a first network node includes receiving a message from a second network node. The method further includes determining packet flow description information for traffic detection according to the message. The packet flow description information may indicate a combination criterion for two or more packet flow descriptions, and/or a protocol matching criterion for a domain name in a packet flow description. According to the embodiments of the present disclosure, the packet flow description definition can be extended to support more accurate traffic detection.
    Type: Application
    Filed: July 12, 2023
    Publication date: November 2, 2023
    Inventors: Wenliang XU, Miguel Angel MUÑOZ DE LA TORRE ALONSO, Antonio Cañete MARTINEZ
  • Publication number: 20230354149
    Abstract: The disclosure relates to a method executed in a domain name system (DNS) proxy, and to a DNS proxy, apparatus or system for application server (AS) discovery for edge computing in a mobile network. The method comprises receiving a DNS query from a user equipment (UE) with an application fully qualified domain name (FQDN). Based on FQDN, retrieving a location of the UE that sent the DNS query; adding subnet(s) or full IP address(es) of one or more preferred location for accessing to a data network (DN) as one or more Extension mechanisms for DNS (EDNS) client subnet (ECS) options in the DNS query; forwarding the DNS query to a mobile network operator (MNO) DNS; receiving a DNS response and based on the DNS response determining an AS site and AS IP address(es); requesting traffic steering and sending the DNS response to the UE.
    Type: Application
    Filed: October 5, 2020
    Publication date: November 2, 2023
    Inventors: Wenliang XU, Maria Luisa MAS ROSIQUE, Attila MIHÁLY, Jan BACKMAN
  • Patent number: D1024768
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: April 30, 2024
    Inventor: Wenliang Xu