Method and apparatus for controlling PDU session
AssigneeSamsung Electronics Co., Ltd.
InventorsMahmoud Watfa, Lalith Kumar
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Abstract
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. According to an embodiment, the method comprises establishing at least one PDU connection in an S1 mode; performing an inter system change from the S1 mode to an N1 mode; and in case that a successful UE-requested PDU session modification procedure is not previously performed and the UE is in a 5GMM-REGISTERED.NON-ALLOWED-SERVICE state, performing a UE-requested PDU session modification procedure to report 5G session management (5GSM) capability of the UE after entering a 5GMM-REGISTERED.NORMAL-SERVICE state.
Claims16
A method performed by a user equipment (UE) in a network, the method comprising:
- establishing at least one protocol data unit (PDU) connection in an S1 mode;
- performing an inter system change operation from the S1 mode to an N1 mode, wherein the S1 mode and the N1 mode are operation modes identified, respectively, in different networks;
- and
- in case that a successful UE-requested PDU session modification procedure is not previously performed and the UE is in a 5GMM-REGISTERED.NON-ALLOWED-SERVICE state, performing a UE-requested PDU session modification procedure to report 5th generation session management (5GSM) capability of the UE after entering a 5GMM-REGISTERED.NORMAL-SERVICE state, wherein the 5GMM-REGISTERED.NON-ALLOWED-SERVICE state and the 5GMM-REGISTERED.NORMAL-SERVICE state are determined based on whether a tracking area identity (TAI) is included in a list of an allowed tracking area.
A method performed by a session management function (SMF) in a network, the method comprising:
- in case that an inter system change operation from an S1 mode to an N1 mode is performed at a user equipment (UE), a successful UE-requested protocol data unit (PDU) session modification procedure is not previously performed for the UE and the UE is in a 5GMM-REGISTERED.NON-ALLOWED-SERVICE state, receiving, from the UE, a PDU session modification request after a state of the UE is transited from the 5GMM-REGISTERED.NON-ALLOWED-SERVICE state to a 5GMM-REGISTERED.NORMAL-SERVICE state, wherein the S1 mode and the N1 mode are operation modes identified, respectively, in different networks, wherein the 5GMM-REGISTERED.NON-ALLOWED-SERVICE state and the 5GMM-REGISTERED.NORMAL-SERVICE state are determined based on whether a tracking area identity (TAI) is included in a list of an allowed tracking area;
- and
- obtaining information for the 5GSM capability from the PDU session modification request.
A user equipment (UE) in a network, the UE comprising:
- a transceiver;
- and
- a processor operably coupled with the transceiver and configured to:
- establish at least one protocol data unit (PDU) connection in an S1 mode,
- perform an inter system change operation from the S1 mode to an N1 mode, and
- in case that a successful UE-requested PDU session modification procedure is not previously performed and the UE is in a 5GMM-REGISTERED.NON-ALLOWED-SERVICE state, perform a UE-requested PDU session modification procedure to report 5th generation session management (5GSM) capability of the UE after entering a 5GMM-REGISTERED.NORMAL-SERVICE state, wherein the 5GMM-REGISTERED.NON-ALLOWED-SERVICE state and the 5GMM-REGISTERED.NORMAL-SERVICE state are determined based on whether a tracking area identity (TAI) is included in a list of an allowed tracking area,
- wherein the S1 mode and the N1 mode are operation modes identified, respectively, in different networks.
A session management function (SMF) in a network, the SMF comprising:
- a transceiver;
- and
- a processor operably coupled with the transceiver and configured to:
- in case that an inter system change operation from an S1 mode to an N1 mode is performed at a user equipment (UE), a successful UE-requested protocol data unit (PDU) session modification procedure is not previously performed for the UE and the UE is in a 5GMM-REGISTERED.NON-ALLOWED-SERVICE state, receive, from the UE, a PDU session modification request from the UE after a state of the UE is transited from the 5GMM-REGISTERED.NON-ALLOWED-SERVICE state to a 5GMM-REGISTERED.NORMAL-SERVICE state, wherein the S1 mode and the N1 mode are operation modes identified, respectively, in different networks, wherein the 5GMM-REGISTERED.NON-ALLOWED-SERVICE state and the 5GMM-REGISTERED.NORMAL-SERVICE state are determined based on whether a tracking area identity (TAI) is included in a list of an allowed tracking area, and
- obtain information for the 5GSM capability from the PDU session modification request.
Dependencies are inferred from the claim text.