User terminal context processing method and device

Abstract

The embodiment of the invention discloses a user terminal context processing method and device, and the method comprises the steps: adding the identification ID information of UE in a switching message if the UE carries auxiliary new air interface base station SgNB information for switching; acquiring the UE according to the ID information in the switching message, and acquiring a target UE context of the UE; and taking the target UE context as the UE context after the UE is switched, so that the switched SgNB does not need to newly establish the UE context for the UE and directly multiplexesthe target UE context. According to the invention, by adding identification ID information of UE into a switching message; therefore, in an MeNB switching scene in which the SgNB of the S1 port is notchanged, the switched SgNB does not need to newly establish a UE context for the UE and directly multiplexes the target UE context, so the number of UE contexts established by the SgNB is reduced, when the number of users is large, the processing amount of the SgNB and the processing time in the base station are greatly reduced, the control plane switching time delay is facilitated, and meanwhile, the storage space of the SgNB is saved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a user terminal context processing method and device. Background technique [0002] NSA (Non-Stand Alone, non-independent networking) is introduced into the 5G (5th-Generation, fifth-generation mobile communication technology) standard, and EN-DC (E-UTRA-NR Dual Connectivity, evolved type) is available under the Option3 architecture For a terminal capable of dual connectivity between a base station and a new air interface base station, when dual connectivity has been established, there are various scenarios for the mobility of the terminal. In terms of interface, it includes at least X2 handover and S1 handover. In terms of coverage, there are MeNB (Master eNB, main base station) handover with SgNB (Secondary gNB, auxiliary new air interface base station) unchanged, MeNB handover with SgNB change, and MeNB with unchanged MeNB SgNB modification or change, etc. In ...

AI Technical Summary

Problems solved by technology

[0004] Due to the incompleteness of the S1 interface of the R15 protocol, for a terminal in a dual connection state in the existing technology, in the MeNB handover scenario where the S1 interface SgNB remains unchanged, the SgNB needs to re-establish the UE context for the UE, resulting in the same UE being in the SgNB There are two UE contexts with the same content. When the number of users is large, the processing capacity of the SgNB and the processing time inside the base station are increased, which affects the handover delay of the control plane and wastes the storage space of the SgNB.

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