MOBILE COMMUNICATION METHOD, MOBILE MANAGEMENT NODE, AND PACKET SWITCH

摘要

PROBLEM TO BE SOLVED: To avoid suspension of service provision and a failure in communication establishment even when supported versions of "PMIPv6" are different in an installed S-GW and P-GW.

SOLUTION: A mobile communication method comprises: a step A in which an MME or SGSN acquires information related to a version of "PMIPv6" supported in an S-GW and P-GW; a step B in which the MME or SGSN selects the S-GW and P-GW establishing PDN connection of a UE on the basis of the information related to the version of the "PMIPv6"; and a step C in which the MME or SGSN transmits a "Create Session Request" including information related to a version of "PMIP" used in establishing the PDN connection of the UE to the selected S-GW.

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