Method for controlling resource release, network element equipment and network system

Abstract

The embodiment of the present invention discloses a method for controlling resource release, a network element device, and a network system. The method for controlling resource release includes: when the user equipment UE migrates from the source-side mobility management entity MME to the new-side MME, confirming When the UE migrates due to the load balancing of the source-side MME, the controlling base station refuses to delete the context information of the UE. The technical solutions provided by the embodiments of the present invention are used to ensure that the user plane is not interrupted.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for controlling resource release, a network element device and a network system. Background technique [0002] The core network of the wireless evolved network mainly includes three logical functional bodies: a mobility management entity (Mobile Management Entity, MME), a serving gateway (Serving Gateway, S-GW), and a packet data gateway (PacketData Network Gateway, P-GW). MME is a mobile management entity, responsible for non-access layer NAS signaling encryption, roaming, tracking and other functions, assigning user temporary identities, security functions, etc. It corresponds to the internal GPRS service of the current Universal Mobile Telecommunications System (UMTS) The control plane part of the supporting node (Serving GPRSSupport Node, SGSN). The S-GW is responsible for the local mobility anchor point and the mobility anchor point within the 3GPP system an...

AI Technical Summary

Problems solved by technology

[0006] In the TAU process or handover process of the above-mentioned prior art, after the target side network resources are established, the S1 connection between the base station and the source side MME will be released, and all S1 user plane bearers on the source S-GW will be released; and the UE The RRC connection with the base station will also be released with the release of the S1 connection, resulting in the release of the radio bearer RB between the UE and the base station, and then the RAB (Radio Access Bear, radio access bearer) between the UE and the core network The bearer is disconnected, because the RAB bearer is established on the basis of the radio bearer RB to bear the business

To sum up, the disconnection of S1 connection resources will lead to disconnection of all user plane resources, resulting in service interruption

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