Secondary authorization at PDU session establishment for home routed roaming

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United States of America Patent

PATENT NO 11546966
APP PUB NO 20210136864A1
SERIAL NO

17147563

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Abstract

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Exemplary embodiments include a method, performed by a session management function (V-SMF) of a visited public land mobile network (VPLMN), for establishing a user-requested PDU session to be routed through the user's home PLMN (HPLMN). Such embodiments include receiving, from an access management function (AMF) in the HPLMN, a first request to establish a home-routed PDU session, wherein the first request identifies an SMF (H-SMF) in the HPLMN. Such embodiments also include sending, to the H-SMF, a second request to create the home-routed PDU session. The second request can include an identifier of a resource in the V-SMF associated with the PDU session; and one or more indicators of whether the V-SMF supports respective one or more features related to receiving, from the H-SMF, an identifier of a resource in the H-SMF that is associated with the PDU session. Embodiments also include complementary methods performed by the H-SMF.

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Patent Owner(s)

Patent OwnerAddress
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)SE-164 83 STOCKHOLM SE-164 83

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gan, Juying Shanghai, CN 61 72
Lu, Yunjie Shanghai, CN 58 47
Yang, Yong Kållered, SE 588 2958

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