Abstract:
Sending an authentication request message to an authentication device, receiving an authentication response message sent by the authentication device, where the authentication response message includes a trust relationship information element which is used for indicating a trust relationship of a current access, and establishing an S2c tunnel security association according to the trust relationship of the current access. The trust relationship when the non-3GPP access side accesses the EPS network may be obtained, thereby ensuring establishment of a correct S2c tunnel security data channel.
Abstract:
A network access method and apparatus for improving network access accuracy of a terminal device are disclosed. A first network element (for example, an access management network element (for example, access and mobility management function (AMF) network element or a mobility management entity (MME) network element) or a unified data management (UDM) network element) obtains an access request including access location information of a first terminal device; obtains subscription information including subscription location information of the first terminal device; in response to confirming that the access location information of the first terminal device does not belong to the subscription location information, obtains permission information for permitting the first terminal device to access a network at an access location corresponding to the access location information; and permits, based on the permission message, the first terminal device to access the network at the access location corresponding to the access location information.
Abstract:
This application discloses a communication method and apparatus, to improve transmission efficiency of a control plane message of a terminal according to a control and provisioning of wireless access points protocol. In this application, a control request message of a terminal may be transmitted between a first communication apparatus and a second communication apparatus through a target channel. Because the target channel supports concurrency of a plurality of messages, transmission efficiency of the control request message of the terminal can be improved.
Abstract:
A user plane network element management method, apparatus, and system are provided so that a session management network element can correctly address a data plane instance. 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 integrated access and backhaul (IAB) node.
Abstract:
Embodiments of this application provide a gateway handover method, a gateway reselection method, and a communications apparatus. The method includes: A source gateway determines to perform gateway handover on a terminal device; determines a target gateway that is to be used to serve the terminal device; and hands over the terminal device from the source gateway to the target gateway. According to the gateway handover method, the gateway reselection method, and the communications apparatus provided in the embodiments of this application, in a non-3GPP network architecture, when gateway handover needs to be performed on the terminal device, the source gateway of the terminal device or the terminal device may hand over the terminal device from the source gateway of the terminal device to the target gateway, to implement gateway handover in the non-3GPP network architecture.
Abstract:
A first network element first obtains an access request including access location information of a first terminal device; 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.
Abstract:
A data packet processing method and apparatus, where a storage apparatus disposed on a network side stores a correspondence between an identifier and data flow characteristic information. When configuring a policy for a data packet including a first identifier, a network-side device requests the storage apparatus for data flow characteristic information corresponding to the first identifier. A policy and charging enforcement function (PCEF) receives a data packet that is sent by a user equipment (UE), matches the data packet against the data flow characteristic information, and when the data packet matches the data flow characteristic information, executes a policy on the data packet according to policy information corresponding to the first identifier.
Abstract:
This application discloses a method and an apparatus for obtaining an identifier of a terminal device. The method is performed by a gateway node and includes: receiving a first message sent by a terminal device, and sending a second message to a control plane node, where both the first message and the second message carry a temporary identifier of the terminal device; receiving a third message sent by the control plane node, where the third message is sent by the control plane node when the control plane node cannot obtain a permanent identifier of the terminal device; sending a fourth message to the terminal device based on the third message; receiving a fifth message sent by the terminal device, where the fifth message carries the permanent identifier of the terminal device; and sending the permanent identifier to the control plane node based on the fifth message.
Abstract:
A data transmission channel processing method, an apparatus and a system, the method comprising determining, by a session management network element, that a data flow of a packet data unit (PDU) session of a terminal needs to be offloaded, where the PDU session is established by using a 3rd generation partnership project (3GPP) access technology and a non-3GPP access technology, and determining, by the session management network element, to insert an offloading device into a data path of the PDU session, where the data path of the PDU session includes a data transmission channel in the 3GPP access technology or a data transmission channel in the non-3GPP access technology.
Abstract:
In a method, after determining an operation mode of a terminal device based on third private network information of the terminal device, an access and mobility management network element sends third updated network configuration information to the terminal device, and after determining fourth policy information based on third policy information and the operation mode, a policy control network element sends fourth updated network configuration information to the terminal device, so that the terminal device accesses a private network based on updated network configuration information, and routes application traffic based on the updated network configuration information.