Method, system and apparatus for conversation loss prevention in static migrating

Abstract

The present invention provides a method for preventing user disconnecting in static migration, wherein the method in the executing course of static migration comprises the following procedures: receiving radio link control RLC sequence number information transmitted by a service radio network controller SRNC corresponding with user equipment UE by a drifting radio network controller DRNC; and processing the protocol data unit PDU sequence transmitted by UE by DRNC with the RLC sequence number information. The invention also provides a system for preventing user disconnecting in static migration and a radio network controller RNC. The application of the invention can settle the problem of user disconnecting when PDU sequence is transmitted by UE to DRNC and increase the user experience in the period when the RLC sequence number information sustained by UE and DRNC is not consistent in the static migration.

Description

technical field [0001] The present invention relates to the field of Universal Mobile Telecommunication System (UMTS), in particular to a method, system and device for preventing user call drop in UMTS static migration. Background technique [0002] The current UMTS network structure such as figure 1 As shown, it mainly includes a core network (Core Network, CN), a UMTS Terrestrial Radio Access Network (UMTS Terrestrial Radio Access Network, UTRAN) and a user terminal (User Equipment, UE). Among them, CN includes packet (PacketSwitched, PS) domain and circuit (Circuit Switched, CS) domain, connected with radio network controller (Radio Network Controller, RNC) through Iu interface; UTRAN includes RNC and base station (Node B), RNC It is connected to Node B through Iub interface, and different RNCs are connected through Iur interface; RNC and Node B form a radio network control system (Radio Network System, RNS); UE is connected to Node B through Uu interface, and Uu interfa...

AI Technical Summary

Problems solved by technology

[0016] The embodiment of the present invention provides a method for preventing user call drop during static relocation, which can solve the problem of user call drop when UE sends PDU sequence to DRNC during the period of inconsistency between the RLC sequence number information maintained by UE and DRNC during the execution of static relocation , improve user experience

[0017] The embodiment of the present invention provides an RNC, which can solve the problem of user drop when the UE sends a PDU sequence to the DRNC during the inconsistency of the RLC sequence number information maintained by the UE and the DRNC during the static migration execution process, and improve user experience

[0018] The embodiment of the present invention provides a system for preventing user call drop during static relocation. The system can solve the problem of user call drop when the UE sends a PDU sequence to the DRNC when the RLC sequence number information maintained by the UE and DRNC is inconsistent during the static relocation execution process. , improve user experience

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