Method for registering a user terminal with a network-sliced communication network

A device for registering a user terminal with a network-sliced communication network, said user terminal being capable of transmitting and receiving data on the network, the user terminal comprising subscription data of a user for at least one of the slices of the network, the device being implemented at least by network equipment capable of communicating with the user terminal via the network and comprising:

• a receiver, a transmitter, a processor and a memory coupled to the processor with instructions which when executed by the processor configure the device to:
• receive a registration request emitted by the user terminal to register with the network;
• obtain, in context information associated with the user terminal, an authorization or a rejection of at least one of the slices of the network authorized or rejected previously during at least one previous registration of the user terminal for a same access type and a same registration area, delivering a registration decision, or
• autonomously determine a registration status for each of the slices of the network subscribed by the user and identified by the network equipment in a network parameter comprising identifiers of all the network slices subscribed by the user, delivering a registration decision.

A user terminal capable of transmitting and receiving data on a network-sliced communication network with which the user terminal is registered, the user terminal comprising:

• subscription data of a user for at least one of the slices of the network, and
• a receiver, a transmitter, a processor and a memory coupled to the processor with instructions which when executed by the processor configure the user terminal to:
• verify whether at least one subscribed slice has been authorized or rejected previously during at least one previous registration of the user terminal for a same access type and a same registration area and,
• in response to the verification being positive, emitting a registration request by the user terminal to register with the network in which the registration request does not contain an identifier of the slice authorized or rejected previously.

An A non-transitory computer readable information medium including instructions of a computer program stored thereon which when executed by a processor of a network equipment configure the network equipment to

• register a user terminal with a network-sliced communication network, said user terminal being capable of transmitting and receiving data on the network, the user terminal comprising subscription data of a user for at least one of the slices of the network, the network equipment capable of communicating with the user terminal via the network and the registering comprising:
• receiving a registration request emitted by the user terminal to register with the network;
• obtaining, in context information associated with the user terminal, an authorization or a rejection of at least one of the slices of the network authorized or rejected previously during at least one previous registration of the user terminal for a same access type and a same registration area, delivering a registration decision, or
• autonomously determining a registration status for each of the slices of the network subscribed by the user and identified by the network equipment in a network parameter comprising identifiers of all the network slices subscribed by the user, delivering a registration decision.