Method and device for user terminal context processing

Abstract

The embodiment of the present invention discloses a user terminal context processing method and device. The method includes: if it is judged that the user terminal UE carries the secondary new air interface base station SgNB information for handover, then adding the UE's identification ID information in the handover message; according to the The ID information in the handover message acquires the UE, and acquires the target UE context of the UE; uses the target UE context as the UE context after the handover, so that the SgNB after handover does not need to The UE creates a new UE context, and directly multiplexes the target UE context. By adding the identification ID information of the UE in the handover message, in the MeNB handover scenario where the SgNB at the S1 interface remains unchanged, the SgNB after handover does not need to create a new UE context for the UE, and directly reuses the existing UE context, reducing the number of SgNB Establishing the number of UE contexts, when the number of users is large, greatly reduces the processing capacity of the SgNB and the processing time inside the base station, which is beneficial to the control plane handover delay and saves the storage space of the SgNB.

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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