A connection restoration method and device, and computer storage medium

Abstract

The invention discloses a connection recovery method and device, and a computer storage device. The method includes: a network element of a first access network according to the context information of a terminal obtained from a network element of a second access network or reported by the terminal and the The state of the core network element that the first access network element can connect to determines whether it can access the second core network element, wherein the second core network element is connected to the second access network element ; When the first access network element cannot access the second core network element, send an indication message to the terminal; the first access network element receives the response message sent by the terminal , accessing the first core network element, and performing message transmission based on the first core network element.

Description

technical field [0001] The present invention relates to the fifth generation (5G, 5 th Generation) mobile communication technology field, especially relate to a kind of connection recovery method and device, computer storage medium. Background technique [0002] In order to reduce the delay of data transmission, 5G is in the fourth generation (4G, 4 th Generation) based on the idle state and connected state of mobile communication, the inactive state is introduced. [0003] For the non-access (NAS, Non-Access Stratum) layer, the inactive state is equivalent to the connected state, so in the inactive state, the network will only initiate the paging of the wireless area, for a user who moves in the inactive state , when it moves from one wireless area to another, it should report to the network through the wireless area update process, so that the network can update the wireless area it maintains, so that the core network can initiate paging in the correct real-time wirele...

AI Technical Summary

Problems solved by technology

However, if the new base station (gNB) where the UE resides cannot connect to the source core network element, although the wireless area update process can be completed, the core network area update process cannot be performed normally

That is to say: once the wireless area update process is performed in an inactive state, but at this time the new gNB cannot connect to the old access and mobility management function (AMF, Access and Mobility management function), there will be a cross-AMF series of questions

Images