IP address allocation method and device

Abstract

The invention discloses an IP (internet protocol) address allocation method and device. A first terminal obtains at least two IP addresses allocated by a network device; and the first terminal allocates a first IP address in the at least two IP addresses to a second terminal, wherein the second terminal is a terminal accessing the network device through the first terminal. Through the IP address allocation method and device, it can be ensured that the second terminal accessing a core network through the first terminal can have normal interaction with the core network in a D2D-based network access mode.

Description

technical field [0001] The invention relates to the field of communication technologies, and in particular, to a method and device for allocating an Internet Protocol (IP, Internet Protocol) address. Background technique [0002] With the development of network technology, the cellular network has developed from the current Long Term Evolution (LTE) network to the LTE-Advanced (LTE-A) network, and the newly proposed fifth-generation mobile communication (5th- generation, 5G) network. In the Internet of Everything network, more and more IoT communication devices need to access the core network, which makes the base station access load in the core network heavier and heavier. Hope to solve this problem. Among them, D2D-based network access means that some terminals do not directly access the base station to connect to the cellular network, but access the adjacent network access device through the D2D network access method, and the network access device may support access to ...

AI Technical Summary

Problems solved by technology

During the communication process between user 3 and user 4 and other terminals, user 1 and user 2 respectively act as network bridges. In this case, some terminals that access the core network through D2D network access will not be able to communicate with the core network. Perform normal interactions, causing problems in some businesses

For example, the voice service VOLTE (Voice-Over LTE) based on the IP Multimedia Subsystem (IMS), when entering the public network from the private network or entering the private network from the public network, the bridge needs to support certain specific Protocols (such as IMS series protocols), which are usually difficult to deploy on special terminals as D2D network access devices, resulting in the core network only being able to count the VOLTE charging information of user 3 and user 4 to user 1 and user 2, which in turn leads to an increase in the voice service VOLTE cost of user 1 and user 2, so that they do not want to appear as special terminals for D2D network access devices

In addition, because some applications opened by user 1 and user 2 cannot be reversely accessed, external Internet terminals will be restricted when accessing the D2D private network

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