Wireless device session management by an access and mobility management function
A source access and mobility management function (AMF) device may send, to a target AMF, a first message. The first message may indicate a handover of a wireless device and a source session management function (SMF). The source AMF may receive, from the target AMF, a second message causing a release of at least one second session of the wireless device. The source AMF may send, to the target AMF, a first indication of the completion of the release of the at least one second session.
1. A method comprising:
sending, by a source access and mobility management function (AMF) to a target AMF, a first message indicating:
a handover of a wireless device; and
a source session management function (SMF);
receiving, by the source AMF from the target AMF, a second message causing a release of at least one second session of the wireless device; and
sending, by the source AMF to the target AMF, a first indication of the completion of the release of the at least one second session.
2. The method of claim 1 , wherein the first message comprises at least one of: an identity of the source SMF; or an address of the source SMF.
3. The method of claim 1 , further comprising receiving, by the source AMF from the target AMF, a response message for the first message, the response message indicating a forward relocation response for the wireless device.
4. The method of claim 1 , further comprising receiving, by the source AMF from a source radio access network (RAN), a third message indicating the handover of the wireless device is required.
5. The method of claim 4 , further comprising sending, by the source AMF to the source RAN, a handover command.
6. The method of claim 1 , further comprising receiving, by the source AMF from the source SMF, a second indication of completion of the release of the at least one second session.
7. The method of claim 1 , further comprising: sending, by the source AMF to the source SMF, a data forwarding tunnel request; and receiving, by the source AMF from the source SMF, a data forwarding tunnel response.
8. A source access and mobility management function (AMF) comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the source AMF to:
send, to a target AMF, a first message indicating:
a handover of a wireless device; and
a source session management function (SMF);
receive, from the target AMF, a second message causing a release of at least one second session of the wireless device; and
send, to the target AMF, a first indication of the completion of the release of the at least one second session.
9. The source AMF of claim 8 , wherein the first message comprises at least one of: an identity of the source SMF; or an address of the source SMF.
10. The source AMF of claim 8 , wherein the instructions further cause the source AMF to receive, from the target AMF, a response message for the first message, the response message indicating a forward relocation response for the wireless device.
11. The source AMF of claim 8 , wherein the instructions further cause the source AMF to receive, from a source radio access network (RAN), a third message indicating the handover of the wireless device is required.
12. The source AMF of claim 11 , wherein the instructions further cause the source AMF to send, to the source RAN, a handover command.
13. The source AMF of claim 8 , wherein the instructions further cause the source AMF to receive, from the source SMF, a second indication of completion of the release of the at least one second session.
14. The source AMF of claim 8 , wherein the instructions further cause the source AMF to: send, to the source SMF, a data forwarding tunnel request; and receive, from the source SMF, a data forwarding tunnel response.
15. A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a source access and mobility management function (AMF), cause the source AMF to:
send, to a target AMF, a first message indicating:
a handover of a wireless device; and
a source session management function (SMF);
receive, from the target AMF, a second message causing a release of at least one second session of the wireless device; and
send, to the target AMF, a first indication of the completion of the release of the at least one second session.
16. The non-transitory computer-readable medium of claim 15 , wherein the first message comprises at least one of: an identity of the source SMF; or an address of the source SMF.
17. The non-transitory computer-readable medium of claim 15 , wherein the instructions further cause the source AMF to receive, from the target AMF, a response message for the first message, the response message indicating a forward relocation response for the wireless device.
18. The non-transitory computer-readable medium of claim 15 , wherein the instructions further cause the source AMF to receive, from a source radio access network, a third message indicating the handover of the wireless device is required.
19. The non-transitory computer-readable medium of claim 15 , wherein the instructions further cause the source AMF to receive, from the source SMF, a second indication of completion of the release of the at least one second session.
20. The non-transitory computer-readable medium of claim 15 , wherein the instructions further cause the source AMF to send, to: send, to the source SMF, a data forwarding tunnel request; and receive, from the source SMF, a data forwarding tunnel response.