DEDICATED BEARER CREATION METHOD AND MOBILITY MANAGEMENT ENTITY

A dedicated bearer creation method, an MME, and a PDN gateway are provided. The dedicated bearer creation method includes: in a TAU procedure, when it is determined that a UE has moved from a 5G network to a 4G network based on identification information provided by the UE, keeping a control plane N...

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Bibliographic Details
Main Author WANG, Hucheng
Format Patent
LanguageEnglish
French
German
Published 26.07.2023
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
WIRELESS COMMUNICATIONS NETWORKS
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Summary:A dedicated bearer creation method, an MME, and a PDN gateway are provided. The dedicated bearer creation method includes: in a TAU procedure, when it is determined that a UE has moved from a 5G network to a 4G network based on identification information provided by the UE, keeping a control plane NAS connection after the TAU procedure; and when a create dedicated bearer request has been received from a PDN gateway, creating a dedicated bearer for the UE using the NAS connection. According to the present disclosure, it is able to create a radio bearer based on the practical need, and prevent the occurrence of a waste of air interface resources caused when the MME requests an eNB to create a user plane radio bearer in the TAU procedure, thereby to solve the problem in the related art where the waste of the air interface resources is caused by a dedicated bearer creation scheme.
Bibliography:Application Number: EP20180880786