US 11,991,603 B2
Methods and apparatuses for facilitating roaming of terminal device
Juying Gan, Shanghai (CN); Qian Chen, Mölndal (SE); and Stefan Rommer, Västra Frölunda (SE)
Assigned to Telefonaktiebolagget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 17/420,764
Filed by Telefonaktiebolaget LM Ericsson (PUBL), Stockholm (SE)
PCT Filed Jan. 9, 2020, PCT No. PCT/CN2020/071198
§ 371(c)(1), (2) Date Jul. 6, 2021,
PCT Pub. No. WO2020/143716, PCT Pub. Date Jul. 16, 2020.
Claims priority of application No. PCT/CN2019/071234 (WO), filed on Jan. 10, 2019.
Prior Publication US 2022/0116753 A1, Apr. 14, 2022
Int. Cl. H04W 76/12 (2018.01); H04M 15/00 (2006.01); H04W 4/24 (2018.01); H04W 28/02 (2009.01)
CPC H04W 4/24 (2013.01) [H04M 15/66 (2013.01); H04M 15/8016 (2013.01); H04M 15/8038 (2013.01); H04M 15/8228 (2013.01); H04W 28/0268 (2013.01)] 11 Claims
OG exemplary drawing
 
5. A method implemented at a session management node operable in a visiting network, the method comprising:
obtaining, from another session management node operable in a home network, quality of service, QoS, parameters authorized by the home network, during establishment of a protocol data unit, PDU, session for a terminal device;
determining a result based on a QoS policy per a roaming agreement between the visiting network and the home network and the QoS parameters authorized by the home network, determining the result comprising:
determining whether the QoS parameters authorized by the home network are compliant with the QoS policy; and
when determining that at least one QoS parameter of the QoS parameters authorized by the home network is not compliant with the QoS policy, modifying the at least one QoS parameter such that the modified at least one QoS parameter is compliant with the QoS policy.