Route reselection method and radio network controller

Abstract

The invention discloses a route reselection method and a radio network controller. The method is applied in a multi-operator core network, when the radio network controller, that is the RNC receives an initial direct transfer message sent by a user device, a mobile switching center, that is the MSC is selected for carrying out route reselection. When the RNC decodes a non-access layer message in the initial direct transfer message and a position updating request message is obtained, the RNC obtains a core network operator identifier carried in the position updating request message, that is PLMN-ID information; and the RNC selects the MSC for carrying out the first route reselection according to the PLMN-ID information and the corresponding relationship between the PLMN-ID and the MSC configured in the RNC. The use of the method can ensure the consistency of operators of the core network selected for UE and the operators of the core network for serving the UE during the last position updating before roaming of the UE, and improve the success probability of the first route reselection.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method and a device for selecting a mobile switching center when rerouting in a multi-operator core network. Background technique [0002] The network sharing technology in 3G Wideband Code Division Multiple Access (WCDMA) refers to allowing different network operators to share a part of WCDMA network elements. Currently, there are various solutions for network sharing, among which there is an important network sharing method: each operator builds an independent core network, but shares a radio access network (RAN) and a frequency band. This network sharing method involves the Iu-Flex technology in the 3GPP protocol and a multi-operator core network (Multi-Operator Core Network, MOCN) networking method. [0003] The introduction of Iu-Flex technology breaks the previous relationship that the radio network controller (RNC) can only be controlled by one core network node mo...

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Problems solved by technology

Therefore, this patent does not improve the situation that the first routing reselection failure that may occur in step 206

[0018] 2. The MSC is selected according to the IMSI configuration table, and the RNC cannot guarantee the consistency between the core network operator selected for the UE and the core network operator serving the UE at the time of the UE's last location update

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