Methods and user equipment for wireless communications

A method of handling multi-access, MA, Protocol data unit, PDU, session establishment procedure for adding a 3GPP PDN leg to an MA PDU session already established with a non-3GPP leg, comprising, for a 5GS MA PDU session already established on non-3GPP access (501), upon receipt (503) of an ACTIVATE...

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Bibliographic Details
Main Author LIN, YUANIEH
Format Patent
LanguageChinese
English
Published 01.10.2023
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
WIRELESS COMMUNICATIONS NETWORKS
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Summary:A method of handling multi-access, MA, Protocol data unit, PDU, session establishment procedure for adding a 3GPP PDN leg to an MA PDU session already established with a non-3GPP leg, comprising, for a 5GS MA PDU session already established on non-3GPP access (501), upon receipt (503) of an ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST message for establishing a PDN connection as a user-plane resource for the MA PDU session over 3GPP access, the UE sends (505) an ACTIVATE DEFAULT EPS BEARER CONTEXT REJECT message if any value of at least one of the critical parameters, including the PDN type, ESM cause, PDN address, S-NSSAI, SSC mode, said mode set to SSC mode 1, and APN IEs in the ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST message does not match, sync or is compatible to the corresponding stored value of the MA PDU session with a non-3GPP leg (504).
Bibliography:Application Number: TW202211150857