Mobility management for next generation mobile network
A network may implement a method to support a mobility of a wireless transmit/receive unit (WTRU). The network or network functions may identify the WTRU that is associated with one or more capabilities and one or more mobility properties. The network or network functions may determine subscription information and network policy information for the WTRU. The network or network functions may select a mobility pattern for the WTRU based on the one or more capabilities and the one or more mobility properties associated with the WTRU, the subscription information, and the network policy information. The mobility pattern may be associated with a mobility parameter and a value corresponding to the mobility parameter.
1. A wireless transmit/receive unit (WTRU) comprising circuitry, including a transmitter, a receiver and a processor, configured to:
receive a plurality of network policies from a network, wherein a first policy of the plurality of network policies maps an application of the WTRU to a network slice and a second policy of the plurality of network policies indicates at least one mobility-related criteria for the application, the at least one mobility-related criteria comprising an indication of whether an Internet Protocol (IP) address can be changed during a session for the application;
determine that a current connection between the WTRU and a data network does not support one or more of (i) the network slice indicated by the first policy or (ii) the at least one mobility-related criteria indicated by the second policy;
send a request to a network node via a wireless interface, wherein the request indicates the at least one mobility-related criteria indicated by the second policy; and
receive, via the wireless interface, a response indicating that the current connection has been modified such that the WTRU can communicate data associated with the application of the WTRU using the network slice indicated by the first policy and in accordance with the at least one mobility-related criteria indicated by the second policy.
2. The WTRU of claim 1 , wherein the request sent to the network node indicates the network slice indicated by the first policy.
3. The WTRU of claim 1 , wherein at least one of the plurality of network policies comprises a network slice identification that identifies the network slice.
4. The WTRU of claim 1 , wherein at least one of the plurality of network policies comprises an application identification that identifies the application.
5. The WTRU of claim 1 , wherein at least one of the plurality of network policies comprises a network slice identification (ID) that identifies the network slice and an application ID that identifies the application, and the network slice ID maps to the application ID.
6. The WTRU of claim 1 , wherein at least one of the plurality of network policies comprises an IP flow that indicates the IP address.
7. The WTRU of claim 1 , wherein the second policy of the plurality of network policies indicates a second mobility-related criteria for the application, the second mobility-related criteria comprising a second indication whether distributed mobility management is supported during the session for the application.
8. The WTRU of claim 1 , wherein the indication indicates the IP address is fixed during the session for the application.
9. The WTRU of claim 1 , wherein the current connection supports a default mobility-related criteria.
10. The WTRU of claim 1 , wherein the circuitry is configured to re-attach to the network node during the modification of the current connection.
11. A method implemented in a wireless transmit/receive unit (WTRU), the method comprising:
receiving a plurality of network policies from a network, wherein a first policy of the plurality of network policies maps an application of the WTRU to a network slice and a second policy of the plurality of network policies indicates at least one mobility-related criteria for the application, the at least one mobility related criteria comprising an indication of whether an Internet Protocol (IP) address can be changed during a session for the application;
determining that a current connection between the WTRU and a data network does not support one or more of the network slice indicated by the first policy or the at least one mobility-related criteria indicated by the second policy;
sending a request to a network node via a wireless interface, wherein the request indicates the at least one mobility-related criteria indicated by the second policy; and
receiving, via a wireless interface, a response indicating that the current connection has been modified such that the WTRU can communicate data associated with the application of the WTRU using the network slice indicated by the first policy and in accordance with the at least one mobility-related criteria indicated by the second policy.
12. The method of claim 11 , wherein the request sent to the network node indicates the network slice indicated by the first policy.
13. The method of claim 11 , wherein at least one of the plurality of network policies comprises a network slice identification that identifies the network slice.
14. The method of claim 11 , wherein at least one of the plurality of network policies comprises an application identification that identifies the application.
15. The method of claim 11 , wherein at least one of the plurality of network policies comprises a network slice identification (ID) that identifies the network slice and an application ID that identifies the application, and the network slice ID maps to the application ID.
16. The method of claim 11 , wherein at least one of the plurality of network policies comprises an IP flow that indicates the IP address.
17. The method of claim 11 , wherein the second policy of the plurality of network policies indicates a second mobility-related criteria for the application, the second mobility-related criteria comprising a second indication whether distributed mobility management is supported during the session for the application.
18. The method of claim 11 , wherein the indication indicates the IP address is fixed during the session for the application.
19. The method of claim 11 , wherein the current connection supports a default mobility-related criteria.
20. The method of claim 11 , further comprising re-attaching to the network node during the modification of the current connection.