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US 12,739,710 B2Granted
Methods for PDU session interworking across EPS and 5GS for NB-IoT
AssigneeSamsung Electronics Co., Ltd.
InventorMahmoud Watfa
Life of this patent
Estimating the term…
Abstract
Disclosed is a method of managing PDU session inter-working in a User Equipment, UE, wherein if the UE changes from WB-N1 mode to NB-S1 mode, then the UE sets the state of any dedicated EPS bearer context to be inactive.
Claims9
A method performed by a User Equipment (UE) in a wireless communication system, the method comprising:
- changing a mode of the UE operating in a single registration mode from a WB-N1 mode to an NB-S1 mode in an idle mode;
- upon changing the mode of the UE operating in the single registration mode from the WB-N1 mode to the NB-S1 mode in the idle mode, setting a state of a dedicated evolved packet system (EPS) bearer context to be inactive;
- after setting the state of the dedicated EPS bearer context to be inactive, including an EPS bearer context status information element (IE) in a tracking area update (TAU) request message;
- and
- upon changing the mode of the UE operating in the single registration mode from the WB-N1 mode to the NB-S1 mode in the idle mode, locally deactivating a dedicated EPS bearer.
2 more elements
A user equipment (UE) in a wireless communication system, comprising:
- transceiver;
- and
- at least one processor configured to:
- change a mode of the UE operating in a single registration mode from a WB-N1 mode to an NB-S1 mode in an idle mode,
- upon changing the mode of the UE operating in the single registration mode from the WB-N1 mode to the NB-S1 mode in the idle mode, set a state of a dedicated evolved packet system (EPS) bearer context to be inactive,
- after setting the state of the dedicated EPS bearer context to be inactive, include an EPS bearer context status information element (IE) in a tracking area update (TAU) request message, and
- upon changing the mode of the UE operating in the single registration mode from the WB-N1 mode to the NB-S1 mode in the idle mode, locally deactivating a dedicated EPS bearer.
4 more elements
Dependencies are inferred from the claim text.