摘要:
A method for maintaining traffic continuity through a Traffic Offload Function (TOF) entity includes the following steps: the TOF entity receives a downlink packet of offload traffic of a User Equipment (UE), where the downlink packet of the offload traffic is sent by a Packet Data Network (PDN); the TOF entity sends a Core Network (CN) paging message to the UE; the TOF entity receives a paging response sent by the UE to the CN, where the paging response includes a service request message of the UE, and the service request message includes a Service Type field indicative of the paging response; and the TOF entity forwards the service request message to the CN so that the CN sets up a Radio Access Bearer (RAB) after the service request message is received, where the Service Type field in the service request indicates a data content (Data). With the method, the communication between the CN and the UE can be restored to guarantee the transmission of traffic. Accordingly, a TOF entity is also disclosed according to the present invention.
摘要:
Embodiments of the present invention provide a traffic offload method, a traffic offload function entity, and a traffic offload system. The method includes: receiving, by a first traffic offload function entity, user information of a user equipment sent by a core network device or a second traffic offload function entity, where when the user information is sent by the second traffic offload function entity, the first traffic offload function entity is a traffic offload function entity after a handover and the second traffic offload function entity is a traffic offload function entity before the handover; obtaining, a traffic offload policy and matching the traffic offload policy with the user information; and offloading traffic corresponding to the user equipment according to the user information that successfully matches the traffic offload policy. The traffic offload function entity may obtain the user information and may perform traffic offload according to the user information.
摘要:
The present invention relates to a bearer control method and system. The bearer control method is applied to a network architecture supporting multiple access technologies, and includes: establishing a packet data network PDN connection when a terminal device UE accesses a network; and identifying and transmitting a service data flow of the UE on an air interface bearer between the UE and an access network access node according to obtained quality of service QoS information, and transmitting the service data flow by using a transmission tunnel between the access network access node and a core network gateway, or directly sending the service data flow to a packet data network by using the access network access node. A function of an MME is simplified by performing hierarchical management on a bearer between the UE and a network. The access network access node controls transmission of the service data flow on the air interface bearer according to the QoS information. This enhances management on an air interface resource status by the access network access node, improves network resource management efficiency and a network capacity, reduces power consumption, and provides a basis for further evolution of a mobile network.
摘要:
This application discloses a communication method and a related apparatus. The communication method includes: A first core network element receives a first message from a second core network element, where the first message includes identification information of a first terminal and first identification information of a session, and the session indicated by the first identification information is used by a second terminal to transmit data for the first terminal; the first core network element obtains, based on the identification information of the first terminal, terminal context information corresponding to the session; and the first core network element sends a second message to the second core network element, where the second message includes the terminal context information corresponding to the session. This can directly control session permission of a terminal device, thereby improving accuracy of performing permission control on the terminal device.
摘要:
Embodiments of this application disclose a network access method and a communication apparatus, applied to the communication field, to improve accuracy of accessing a network by a terminal device. The method in embodiments of this application includes: A first network element first obtains an access request including access location information of a first terminal device, where the first network element may be an access management network element or a UDM network element, and the access management network element may be an AMF network element or an MME network element; then, the first network element may obtain subscription information including subscription location information of the first terminal device; when the first network element determines that the access location information of the first terminal device does not belong to the subscription location information, the first network element may obtain allowed information for allowing the first terminal device to access a network at an access location corresponding to the access location information; and the first terminal device may further be allowed, based on the allowed information, to access the network at the access location corresponding to the access location information.
摘要:
Embodiments of this application relate to the field of communications technologies, and provide a user plane network element management method, apparatus, and system, so that a session management network element can correctly address a data plane instance. The method includes: The session management network element determines information about a target data plane instance, where the information about the target data plane instance includes a routing indicator, the routing indicator is used to determine an address of the target data plane instance, and the target data plane instance is associated with a wireless backhaul IAB node. The session management network element sends an N4 session management request message and a first indication to the IAB node by using a mobility management network element or a donor (Donor) node that provides a service for the IAB node, where the first indication is used to indicate the IAB node to send the N4 session management request message to the target data plane instance.
摘要:
Embodiments of this application relate to a data transmission method, a terminal device, and a network device. The method includes: First, a terminal device receives indication information from a PCF network element, and the indication information indicating data network access identifier information corresponding to an application; and then the terminal device determines, based on the indication information, a PDU session for transmitting data of the application. In this way, the terminal device may select a same PDU session for applications corresponding to same data network access identifier information, so that data transmission efficiency can be improved.
摘要:
Embodiments of this application provide a method and an apparatus for determining a status of a terminal device, and a device. The method includes: obtaining, by an access and mobility management network element, an access type used by the terminal device to access a network, where the access type includes at least one of 3rd generation partnership project 3GPP access and non-3GPP access; and determining, by the access and mobility management network element based on a status of the terminal device in the access type, the status of the terminal device, where the status of the terminal device includes at least one of a loss-of-connectivity state and an available-to-connectivity state. By using the method according to the embodiments of this application, accuracy of determining the status of the terminal device is improved.