Deregistration method of user equipment in network and user equipment performing the same
AssigneeElectronics and Telecommunications Research Institute
InventorsYoo Hwa Kang, Dongmyoung Kim, No Ik Park
Life of this patent
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Abstract
A deregistration method of user equipment in a network and user equipment performing the same is disclosed. The user equipment determines whether the user equipment is in a connection management (CM)_CONNECTED state in a non-3GPP access network and initiates a deregistration procedure through the non-3GPP access network if the user equipment is in the CM_CONNECTED state in the non-3GPP access network.
Claims16
A method for deregistering, by user equipment (UE) in a network, the method comprising:
- determining whether the UE is in a connection management (CM)_CONNECTED state in a non-3GPP access network;
- and
- initiating a deregistration procedure through the non-3GPP access network if the UE is in the CM_CONNECTED state in the non-3GPP access network,
- wherein the initiating comprises transmitting a deregistration request message to an access and mobility management function (AMF) through the non-3GPP access network.
A deregistration method of user equipment (UE), the method comprising:
- determining whether the UE is registered on both a non-3GPP access network and a 3GPP access network;
- determining whether the UE is in a connection management (CM)_IDLE state in the 3GPP access network and a CM_CONNECTED state in the non-3GPP access network;
- and
- initiating a deregistration procedure through the non-3GPP access network if the UE is registered on the non-3GPP access network and the 3GPP access network and the UE is in the CM_IDLE state in the 3GPP access network and in the CM_CONNECTED state in the non-3GPP access network,
- wherein the initiating comprises initiating the deregistration procedure through the non-3GPP access network to deregister the UE in the 3GPP access network.
User equipment (UE) performing deregistration in the network, the UE comprising:
- a processor determining whether the UE is in a connection management (CM)_CONNECTED state in a non-3GPP access network and initiating a deregistration procedure through the non-3GPP access network if the UE is in the CM_CONNECTED state in the non-3GPP access network;
- and
- a network interface transmitting a message associated with the deregistration procedure through the non-3GPP access network,
- wherein the network interface transmits a deregistration request message to an access and mobility management function (AMF) through the non-3GPP access network.
Dependencies are inferred from the claim text.