Terminal address allocation method, UPF, system and storage medium

Abstract

The invention provides a terminal address allocation method, a UPF, a system and a storage medium. The method comprises the steps: the UPF receives a session establishment request message sent by an SMF; the UPF extracts user position information corresponding to the terminal from the session establishment request message, and allocates an IP address to the terminal based on the user position information; and the UPF returns a session establishment response message to the SMF, wherein the information carried in the session establishment response message comprises the IP address allocated to the terminal. According to the method, the UPF, the system and the storage medium provided by the invention, the position information of the user is added in the session establishment request message sent by the SMF to the UPF, and the UPF allocates the user address according to the position information of the user, so that the service experience can be improved, the configuration and maintenance workload of the network is reduced, and the utilization rate of the IP address is improved.

Description

technical field [0001] The present invention relates to the technical field of communication, and in particular to a terminal address allocation method, UPF, system and storage medium. Background technique [0002] In the 5G architecture, the user plane and the control plane are completely separated. When a user creates a data session, according to the 3GPP standard, the user address can be assigned by the control plane network element SMF (Session Management Function, session management function), or by the user plane network element UPF (User Plane Function, user plane function). The user plane address is essentially owned by UPF. When SMF and UPF are deployed in many-to-many (that is, one UPF is controlled by multiple SMFs at the same time), if SMF is used to allocate user addresses, the address of each UPF needs to be assigned in advance. The pool is divided into multiple sub-address pools and configured in the SMF in advance, resulting in a heavy workload for network c...

AI Technical Summary

Problems solved by technology

The user plane address is essentially owned by UPF. When SMF and UPF are deployed in many-to-many (that is, one UPF is controlled by multiple SMFs at the same time), if SMF is used to allocate user addresses, the address of each UPF needs to be assigned in advance. The pool is divided into multiple sub-address pools, which are configured in SMF in advance, resulting in a heavy workload for network configuration and maintenance, and resulting in a decrease in the statistical reuse rate of IP addresses, reducing the utilization rate of IP addresses

However, if UPF is used to assign user addresses, since UPF cannot assign user addresses based on user location information, it cannot be applied to some scenarios that require regulatory control

Images