Method for preventing false resource release in tracing section updating or switching course

Abstract

The invention discloses a method for avoiding resource release by mistake during an update or switch process in a tracking area, which includes the following steps: a target MME judges whether to use an old system architecture evolution serving GW or to reselect a new serving GW; if the target MME judges to select the new serving GW, a source MME is notified and sends a request for deleting the context to the old serving GW. No notice is needed to be sent when the old serving GW is used since the target MME knows whether to use the old serving GW or reselect the new serving GW; the notice is only sent when the new serving GW is selected, thus solving the problem of resource release by mistake in the source serving GW and guaranteeing the success of the update or the conversion.

Description

technical field

[0001] The invention relates to the field of wireless communication, in particular to a method for avoiding wrong release of resources during tracking area update or handover. Background technique

[0002] With the sudden emergence of Wimax (World Interoperability for Microwave Access, the third-generation mobile communication system must improve its network performance and reduce network construction and operation in order to maintain its strong competitiveness in the field of mobile communication. cost. Therefore, the standardization working group of 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) is currently working on researching PS Core (Packet Switch Core, packet switching core network) and UTRAN (Universal Mobile Telecommunication System Radio Access Network, The evolution of the Global System for Mobile Communications Radio Access Network), this research topic is called System Architecture Evolution (SAE for short), the...

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