Switching management method for 5G ultra-dense network

Abstract

The embodiment of the invention provides a switching management method for a 5G ultra-dense network. The method comprises the steps: starting an inactive timer for a terminal which has no uplink and downlink data transmission and is in a connection state, and stopping timing when the uplink and downlink data transmission of the terminal is detected; determining whether the terminal has a switchingrequirement or not under the condition that the inactive timer is not overtime; in response to a switching demand of the terminal, judging whether the inactive timer stops timing or not; under the condition that the inactive timer does not stop timing, switching processing or state conversion processing is carried out on the terminal according to the data arrival probability of the terminal before timeout of the inactive timer, the switching cost of the terminal and the state conversion cost; and under the condition that the inactive timer stops timing, performing switching processing or state conversion processing on the terminal according to the switching cost and the state conversion cost of the terminal. According to the embodiment of the invention, unnecessary switching is avoided, and the switching frequency and interruption time delay in the 5G ultra-dense network are reduced.

Description

technical field [0001] The present invention relates to the technical field of mobile communications, and more specifically, to a handover management method for 5G ultra-dense networks. Background technique [0002] 5G ultra-dense network (UDN) obtains greater cell splitting gain through high-density base station deployment, and achieves higher spectral efficiency and capacity than LTE. 5G RRC state (that is, radio resource control state) includes idle state (RRCIdle) , Connected state (RRC Connected) and inactive state (RRC Inactive), wherein in the idle state and inactive state, the terminal completes mobility management through cell selection / reselection, and in the connected state, the terminal assists the base station in cell handover process to complete mobility management. [0003] The high-density deployment of base stations brings many problems, for example, because a single base station has a small transmission power and coverage area, the frequency of handover in...

AI Technical Summary

Problems solved by technology

However, there are following problems in this scenario: after the handover process is performed, the new base station will start the inactive timer again. If the terminal does not transmit uplink and downlink data, the inactive timer may time out, and then the terminal switches to the inactive state

If the handover fails during the handover process, the reconstruction process initiated by the terminal will also bring more signaling processing and resource allocation operations, resulting in a large interruption delay for the terminal

Images