Method for routing data of a session initialized between a terminal and a server

1. A routing method for routing data of a session initialized between a terminal and an application server, over a first network slice corresponding to a set of data processing functions of a communication infrastructure, implemented by the terminal, and comprising:

receiving from the application server at least one identifier of a second slice of the communication infrastructure determined based on at least one communication parameter of the session,

configuring a piece of session information based on the received at least one identifier of the second slice, and

transmitting to the application server subsequent data routed over at least the second slice corresponding to the configured piece of session information.

2. The routing method as claimed in claim 1 , where the session is ciphered by the terminal and deciphered by the application server.

3. The routing method as claimed in claim 1 , where the session is initialized by the terminal by configuring a default piece of session information.

4. The routing method as claimed in claim 1 , where the piece of session information is a data element relating to a piece of NSSAI information.

5. The routing method as claimed in claim 1 , further comprising the terminal storing in memory the at least one identifier received based on the at least one communication parameter of the session.

6. A determination method for determining at least one routing identifier of data of a session initialized between a terminal and an application server, over a first network slice corresponding to a set of functions for processing the data of a communication infrastructure, implemented by the application server and comprising:

determining at least one identifier of a second slice of the communication infrastructure based on at least one communication parameter of the session,

transmitting to the terminal the determined at least one identifier of the second slice, and

receiving from the terminal subsequent data routed over at least the second slice.

7. The determination method as claimed in claim 6 , where the at least one communication parameter relates to a transport layer of the session.

8. The determination method as claimed in claim 6 , where the at least one communication parameter relates to a Quick User Datagram Protocol (UDP) Internet Connections (QUIC) protocol.

9. The determination method as claimed in claim 6 , where the at least one communication parameter relates to a protocol version of a transport layer.

10. The determination method as claimed in claim 6 , where the at least one identifier is transmitted in a data element of a transport protocol.

11. A routing device for routing data of a session initialized between a terminal and an application server, over a first network slice corresponding to a set of data processing functions of a communication infrastructure, implemented by the terminal, wherein the device comprises:

a receiver, configured to receive from the application server at least one identifier of a second slice of the communication infrastructure determined based on at least one communication parameter of the session,

a processor, configured to configure a piece of session information based on the received at least one identifier of the second slice, and

a transmitter, configured to transmit to the application server subsequent data routed over at least the second slice corresponding to the configured piece of session information.

12. A terminal comprising the routing device as claimed in claim 11 .

13. A device for determining at least one routing identifier of data of a session initialized between a terminal and an application server, over a first network slice corresponding to a set of functions for processing the data of a communication infrastructure, implemented by the application server, wherein the device comprises:

a processor, configured to determine at least one identifier of a second slice of the communication infrastructure determined based on at least one communication parameter of the session,

a transmitter, configured to transmit to the terminal the determined at least one identifier of the second slice, and

a receiver, configured to receive from the terminal the subsequent data routed over at least the second slice.

14. A non-transitory computer-readable recording medium comprising a computer program recorded thereon, the computer program comprising instructions for implementing a routing method when the instructions are executed by a processor of a terminal, the routing method routing data of a session initialized between the terminal and an application server, over a first network slice corresponding to a set of data processing functions of a communication infrastructure,

wherein the instructions configure the terminal to:

receive from the application server at least one identifier of a second slice of the communication infrastructure determined based on at least one communication parameter of the session,

configure a piece of session information based on the received at least one identifier of the second slice, and

transmit to the application server subsequent data routed over at least the second slice corresponding to the configured piece of session information.

15. A non-transitory computer-readable recording medium comprising a computer program recorded thereon, the computer program comprising instructions for implementing a determination method when the instructions are executed by a processor of an application server, the determination method for determining at least one routing identifier of data of a session initialized between a terminal and the application server, over a first network slice corresponding to a set of functions for processing the data of a communication infrastructure,

wherein the instructions configure the application server to:

determine at least one identifier of a second slice of the communication infrastructure based on at least one communication parameter of the session,

transmit to the terminal the determined at least one identifier of the second slice, and

receive from the terminal subsequent data routed over at least the second slice.