25 results about "Packet data gateway" patented technology

A method for obtaining information for establishing emergency service sessions over a non-3GPP wireless access network, the method comprising: by a wireless device: Sending an initial query for emergency service public land mobile network (PLMN) information to a Domain Name System (DNS) server; receiving a first response including a list of one or more PLMNs supporting emergency service sessions over the non-3GPP wireless access network from the DNS server; Selecting a PLMN from the list of one or more PLMNs; Sending a second query for emergency service evolved packet data gateway (ePDG) information to the DNS server; receiving a second response including a list of Internet Protocol (IP) addresses for ePDGs supporting emergency service sessions over the non-3GPP wireless access network from the DNS server; and Sending a third query for local emergency number information to a DNS server located in a country in which the wireless device is roaming; and Receiving a third response including a list of local emergency service numbers categorized by emergency service type from the DNS server located in the country in which the wireless device is roaming.

Disclosed in the present application are a registration method, a packet data gateway, a terminal device, and a storage medium. The registration method is applied to a packet data gateway (PDG). The method comprises: establishing a control plane connection with a terminal device on the basis of a Quick User-Datagram-Protocol Internet Connections (QUIC)-based control plane protocol; receiving a registration request message which is sent by the terminal device on the basis of the control plane connection, wherein the registration request message comprises identification information and a registration parameter of the terminal device; sending an authentication request message to a core network device on the basis of the identification information and the registration parameter of the terminal device; and receiving an authentication authorization message sent by the core network device, and sending a registration response message to the terminal device on the basis of the authentication authorization message.

Implementations are described herein for wireless communication network handovers. One or more components of a visited public land mobile network (VPLMN) may send, to a packet data gateway (PGW) of a home public land mobile network (HPLMN), a create session request. The PGW of the HPLMN may send, to the one or more components of the VPLMN, a create session response that includes an identifier of the PGW. A mobility management entity (MME) of the VPLMN may send, to a home subscriber service (HSS) of the HPLMN, the PGW identifier. The HSS may use the PGW for a handover process, such as a handover from voice over Internet Protocol (VoIP) to voice over wireless local area network (WLAN).

A method, a network device, and a non-transitory computer-readable storage medium are described in relation to a low latency, low loss, and scalable throughput (L4S)-triggered prioritized connection service. The L4S-triggered prioritized connection service may enable an evolved packet data gateway (ePDG) to provision prioritized and non-prioritized tunnels with end devices via untrusted wireless local area networks. The prioritized tunnel may support L4S or another quality of service in which the ePDG may provide prioritized data forwarding. The end device may transmit a request that includes priority data.

The present disclosure provides a voice service configuration method and device, electronic equipment and storage medium, and relates to the technical field of wireless communication. The method comprises the following steps: obtaining a response message sent by an evolved packet data gateway (ePDG), wherein the response message comprises whether to carry back-off timer information; judging whether the response message carries the back-off timer information; if yes, stopping initiating a request for accessing a voice over WiFi (VoWiFi) network within a time limited by the back-off timer information according to the back-off timer information; and if no, stopping initiating the request for accessing the VoWiFi network. The present disclosure obtains the timer information of the response message sent by the ePDG, formulates a voice service configuration method according to the timer information, and avoids that the user does not open the VoWiFi service, thereby increasing the network resource pressure caused by the terminal constantly trying to access the VoWiFi network.

Systems and methods described herein enable 5G core session management function (SMF) / user plan function (UPF) relocation to support ATSSS-enabled evolved packet data gateways (ePDG). An ePDG receives an access traffic steering, switching and splitting (ATSSS) trigger message from a user equipment (UE) device. The UE device is connected via a first session using a session management function (SMF) and a via a second session using a packet data network gateway (PGW). The ATSSS trigger message includes an SMF identifier for the SMF. The ePDG sends, in response to the ATSSS trigger message, a request to the SMF to merge the first session and the second session into a single registration.

Implementations are described herein for wireless communication network handovers. One or more components of a visited public land mobile network (VPLMN) may send, to a packet data gateway (PGW) of a home public land mobile network (HPLMN), a create session request. The PGW of the HPLMN may send, to the one or more components of the VPLMN, a create session response that includes an identifier of the PGW. A mobility management entity (MME) of the VPLMN may send, to a home subscriber service (HSS) of the HPLMN, the PGW identifier. The HSS may use the PGW for a handover process, such as a handover from voice over Internet Protocol (VoIP) to voice over wireless local area network (WLAN).

Provided in the present application are a communication method, and a device and a storage medium. The communication method applied to a packet data gateway comprises: sending a first discovery request message carrying at least first capability-related information to discover a first network element, wherein the first capability-related information is capability-related information supported by the first network element; and selecting, on the basis of a received first discovery response message, the first network element matching the first capability-related information.

Methods, systems, and apparatus for wireless communications are described. A user equipment (UE) may establish a cellular connection with a base station associated with a cellular radio network. The UE may receive an access policy of the cellular radio network, the access policy identifying an access preference rule for the UE to employ for connecting to a core network function of the cellular radio network, the access preference rule indicating to the UE that connection to the core network function is preferably via a non-cellular radio network. The UE may determine that a gateway between the non-cellular radio network and the core network function of the cellular radio network is not configured. The UE may determine that a gateway selection policy for the cellular radio network is not configured. The UE may establish a connection to a legacy core network function of a legacy cellular radio network via a legacy gateway.

Provided are a message forwarding method, a UPF selection method, an electronic device and a storage medium, the message forwarding method comprising: sending a first message to an evolved packet data gateway (ePDG), the first message carrying a communication capability identifier of a UE, the communication capability identifier being used for determining that the UE supports separation of a control plane and a media plane; a second message sent by the ePDG is received, the second message carries address information and a security parameter index SPI corresponding to a target user plane function UPF, and the target UPF supports separation of a control plane and a media plane; generating a first target message according to the SPI of the target UPF; and directly forwarding the first target message to the target UPF based on the address information of the target UPF. In this way, in the link of receiving the address information of the target UPF and the real-time call of the SPI, the UE can further directly send the first target message to the target UPF with the address information of the target UPF and the SPI as identifiers, and the message information in the actual call does not need to be forwarded through the ePDG, thereby effectively reducing the transmission delay in the message communication transmission.

The application provides a user positioning method, device, equipment, medium and product. The method comprises the following steps: in response to a user address query request, a location service platform acquires a user number segment of a user to be queried corresponding to the user address query request, so as to determine an evolved packet data gateway corresponding to the user to be queried; the evolved packet data gateway acquires the user number segment; the evolved packet data gateway queries home broadband account information of the user to be queried according to the user number segment; the evolved packet data gateway returns the home broadband account information to the location service platform; the location service platform determines home broadband location information according to the home broadband account information, and determines the home broadband location information as location information of the user to be queried. The method of the application provides the location information of the user to be queried in real time, and improves the accuracy of the location information of the user to be queried.

The present application relates to the technical field of selecting packet data gateway, and particularly relates to a method, system, device and medium for flexibly selecting packet data gateway. The method comprises: generating priority and / or weight information corresponding to candidate packet data gateway control plane nodes in a packet data gateway set during user session establishment or mobility switching; sending the priority and / or weight information to a mobility management network element through a session response message; and when detecting that a fault occurs in an accessed packet data gateway control plane node, selecting a target packet data gateway control plane node from the packet data gateway set according to the priority and / or weight information to restore the user session. The MME / ePDG can select a PGW according to a configured priority and load sharing strategy, so that the resource utilization and load of the PGW Set reach an expectation, and load sharing according to priority or weight is realized.

The invention relates to the technical field of mobile communication, and discloses a service private network isolation system in an operator network, an enhanced home subscriber server HSS + comprises PGW addresses of all private networks, a DNS server IP and a VLAN ID; an enhanced mobile management entity MME + requests a PGW address, a DNS server IP and a VLAN ID of a corresponding private network from an HSS + according to a PDU session request of the terminal equipment, sends the DNS server IP to the terminal equipment, and sends the VLAN ID and the PGW address to an enhanced serving gateway SGW +; the SGW + sends the VLAN ID to a corresponding enhanced packet data gateway PGW + according to the PGW address; and the PGW + prints the VLAN ID corresponding to the private network on the data packet sent by the terminal equipment, forwards the data packet to the private network, removes the VLAN ID carried on the data packet sent by the private network, and forwards the data packet to the terminal equipment.

The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method and apparatus for enhancing the quality of a Wi-Fi voice (VoWi-Fi) call in an electronic device (300) is disclosed herein. The method includes detecting, using an evolved packet data gateway (ePDG) interface, voice communications on a first wireless local area network (WLAN) among a plurality of WLANs associated with a node of a network. The method also includes determining one or more ePDG interface tunnel parameters associated with the plurality of ePDG interface tunnels. The method further includes, upon detecting a change in the determined one or more ePDG interface tunnel parameters, establishing a voice communication using a second WLAN among the plurality of WLANs to enhance quality of the VoWi-Fi call.

Systems and methods described herein enable 5G core session management function (SMF) / user plan function (UPF) relocation to support ATSSS-enabled evolved packet data gateways (ePDG). An ePDG receives an access traffic steering, switching and splitting (ATSSS) trigger message from a user equipment (UE) device. The UE device is connected via a first session using a session management function (SMF) and a via a second session using a packet data network gateway (PGW). The ATSSS trigger message includes an SMF identifier for the SMF. The ePDG sends, in response to the ATSSS trigger message, a request to the SMF to merge the first session and the second session into a single registration.

The invention discloses a registration method, a packet data gateway, terminal equipment and a storage medium. The registration method is applied to a packet data gateway PDG. The method comprises the following steps: establishing a control plane connection with a terminal device according to a control plane protocol based on a fast user datagram protocol network connection QUIC; receiving a registration request message sent by the terminal device based on the control plane connection, wherein the registration request message comprises identification information and registration parameters of the terminal device; sending an authentication request message to a core network device according to the identification information and the registration parameter of the terminal device; and receiving an authentication and authorization message sent by the core network equipment, and sending a registration response message to the terminal equipment according to the authentication and authorization message.

This application proposes a communication method, device, and storage medium. The communication method applied to a packet data gateway includes: sending a first discovery request message carrying at least first capability-related information to discover a first network element; wherein the first capability-related information is capability-related information supported by the first network element; and selecting a first network element that matches the first capability-related information based on a received first discovery response message.

The present application provides a packet forwarding method, a user plane function (UPF) selection method, an electronic device, and a storage medium. The packet forwarding method comprises: sending a first message to an evolved packet data gateway (ePDG) (S110), wherein the first message carries a communication capability identifier of a UE, and the communication capability identifier is used for determining that the UE supports control plane and media plane separation; receiving a second message sent by the ePDG (S120), wherein the second message carries address information and a security parameter index (SPI) corresponding to a target UPF, and the target UPF supports control plane and media plane separation; generating a first target packet on the basis of the SPI of the target UPF (S130); and directly forwarding the first target packet to the target UPF on the basis of the address information of the target UPF (S140).

The invention discloses a business tracing method and device, computer equipment and a storage medium. The method belongs to the technical field of wireless communication, and specifically comprises the following steps: after a first traceability request carrying a device identifier sent by an evolved packet data gateway is received, sending a second traceability request carrying the device identifier to a service operation platform; wherein the first tracing request is sent by the evolved packet data gateway under the condition that the evolved packet data gateway detects that the target terminal initiates a service request through the target CPE; the second traceability request is used for indicating the service operation platform to determine the equipment information of the target CPE based on the equipment identifier, and sending the equipment information to the traceability gateway. And determining a traceability result based on the equipment information. And sending the traceability result to the evolved packet data gateway. Based on the service traceability method, traceability in a VoWiFi service scene can be realized, the traceability efficiency is high, the response speed of some specific VoWiFi services is improved, and thus the user satisfaction is improved.

Described are examples for modifying a packet data network (PDN) gateway used for a session in wireless communications where the PDN gateway can receive, for a mobility management entity (MME) or evolved packet data gateway (ePDG), a request to restore an existing session with the first PDN gateway, receive, from a database, and based on attempting to restore the existing session for the MME or ePDG, a read lock failure based on a restoration of the existing session established for the MME or ePDG and a second PDN gateway, and send, for the MME or ePDG, a rejection message in response to the request, where the rejection message includes a cause code indicating to restore the existing session with the second PDN gateway. Other examples relate to the MME or ePDG receiving the rejection message and sending the request to restore the existing session with the second PDN gateway.

Embodiments of the present application provide a network tracing method and device, electronic equipment and storage medium. A location query request message is sent to a first tracing gateway device. When the first tracing gateway device determines that a broadband access device belongs to a broadband access device of a second operator through an IP address, the first tracing gateway device sends a query request instruction to a second tracing gateway device. The second tracing gateway device forwards the query request instruction to a tracing system. The tracing system generates first query response information and sends the first query response information to the second tracing gateway device. The second tracing gateway device forwards the first query response information to the first tracing gateway device. The first tracing gateway device generates first location query reply information based on the first query response information and sends the first location query reply information to an evolved packet data gateway device. The first location query reply information is received and used for network tracing, thereby realizing location tracing across operators in a VoWiFi environment.

A gateway access method and an electronic device are provided. The gateway access method includes: determining a target ePDG based on a priority level of at least one pre-recorded evolved packet data gateway ePDG; and initiating an access procedure to the target ePDG based on pre-recorded address information; where the priority level includes a priority level that is determined based on access parameter information of the at least one ePDG; and the address information includes address information of the target ePDG.

Method and apparatus are provided to handle PDU session duplication when a UE has duplicate PDU session over different access networks or systems when the PDU session and the duplicate PDU session are anchored at different session management entities. The method comprises at a UDM detecting duplicate PDU session established over an evolved packet data gateway (ePDG) used to provide access to a UE over non-3GPP access for a UE and notifying the old session management entity anchoring the old / existing PDU session that a duplicate (new) PDU session is setup over an ePDG. Different examples are described as to how that indication is provided. The old session management entity uses the information to initiate release of the PDU session without releasing the PDU session in the UE. A method and apparatus is provided for the SMF that is required to handle the deregistration notification from the UDM.

System and methods for efficient serving gateway and packet data gateway selections are described. A mobile device may attempt transmit an attach request to a network requesting packet data services in a particle protocol. A control plane of a serving gateway may receive the attach request and determine a serving gateway user plane that is configured to operate in the specified protocol. The serving gateway control plane may then propagate the determined serving gateway user plane to a packet data network gateway control plane for selection of the serving gateway user plane and a corresponding packet data network gateway user plane for use in providing packet services to the mobile device.

In one aspect, a method includes receiving, a serving gateway of a core network of a wireless communication system, a call request associated with an emergency service; assigning a Tunnel Endpoint Identifier (TEID) to the call, wherein the TEID has a plurality of bits and a first segment of the plurality of bits are set to identify the TEID as being associated with the emergency service; and establishing the call for the emergency service with a Packet Data Gateway (PGW) of the core network using the TEID, wherein the TEID enables the PGW to suppress deletion of a bearer associated with the call.