User Plane Function Selection for Isolated Network Slice
Systems, apparatuses, and methods are described for wireless communications. A first message indicating a request to select a user plane function (UPF) device may comprise a network slice isolation information parameter and a network slice identifier associated with a wireless device. A second message comprising an identifier of a UPF device may be received.
1 . A method comprising:
sending, by a first core network device to a second core network device, a first message for establishing a session, the first message comprising an indication of a network slice restriction to be used in selecting a user plane resource for sending data associated with a wireless device; and
receiving, by the first core network device and from the second core network device, a second message comprising an indication of a user plane resource that satisfies the network slice restriction.
2 . The method of claim 1 , wherein:
the first message comprises a network slice identifier associated with the wireless device, and
the indicated user plane resource is associated with the network slice identifier.
3 . The method of claim 1 , wherein the indicated user plane resource comprises a user plane resource of a user plane function device.
4 . The method of claim 1 , further comprising receiving, from the wireless device, a request to establish a session for sending the data associated with the wireless device, wherein the request to establish the session comprises the indication of the network slice restriction.
5 . The method of claim 1 , wherein the network slice restriction comprises at least one of:
a network slice isolation type descriptor; or
a degree of network slice isolation.
6 . The method of claim 1 , wherein the first core network device is an access and mobility management function (AMF) device, and the second core network device is a session management function (SMF) device.
7 . A method comprising:
receiving, by a second core network device and from a first core network device, a first message comprising a network slice restriction for selection of user plane resources of a plurality of network slices;
selecting, by the second core network device and based on the network slice restriction, a user plane resource of one of the plurality of network slices; and
sending, by the second core network device to the first core network device, a second message comprising an indication of the selected user plane resource.
8 . The method of claim 7 , wherein the selected user plane resource comprises a user plane resource of a user plane function device.
9 . The method of claim 7 , wherein:
the first message comprises a network slice identifier associated with a wireless device, and
the selected user plane resource is associated with the network slice identifier.
10 . The method of claim 7 , further comprising sending, by the second core network device to the first core network device, a third message indicating a change in at least one of:
the network slice restriction, or
a user plane function selection rule.
11 . The method of claim 7 , wherein the network slice restriction comprises at least one of:
a network slice isolation type descriptor; or
a degree of network slice isolation.
12 . The method of claim 7 , wherein the first core network device is an access and mobility management function (AMF) device, and the second core network device is a session management function (SMF) device.
13 . A first core network device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, configure the first core network device to:
send, to a second core network device, a first message for establishing a session, the first message comprising an indication of a network slice restriction to be used in selecting a user plane resource for sending data associated with a wireless device; and
receive, from the second core network device, a second message comprising an indication of a user plane resource that satisfies the network slice restriction.
14 . The first core network device of claim 13 , wherein:
the first message comprises a network slice identifier associated with the wireless device, and
the indicated user plane resource is associated with the network slice identifier.
15 . The first core network device of claim 13 , wherein the indicated user plane resource comprises a user plane resource of a user plane function device.
16 . The first core network device of claim 13 , wherein the instructions, when executed by the one or more processors, further configure the first core network device to receive, from the wireless device, a request to establish a session for sending the data associated with the wireless device, and wherein the request to establish the session comprises the indication of the network slice restriction.
17 . The first core network device of claim 13 , wherein the network slice restriction comprises at least one of:
a network slice isolation type descriptor; or
a degree of network slice isolation.
18 . The first core network device of claim 13 , wherein the first core network device is an access and mobility management function (AMF) device, and the second core network device is a session management function (SMF) device.
19 . A second core network device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, configure the second core network device to:
receive, from a first core network device, a first message comprising a network slice restriction for selection of user plane resources of a plurality of network slices;
select, based on the network slice restriction, a user plane resource of one of the plurality of network slices; and
send, to the first core network device, a second message comprising an indication of the selected user plane resource.
20 . The second core network device of claim 19 , wherein the selected user plane resource comprises a user plane resource of a user plane function device.
21 . The second core network device of claim 19 , wherein:
the first message comprises a network slice identifier associated with a wireless device, and
the selected user plane resource is associated with the network slice identifier.
22 . The second core network device of claim 19 , wherein the instructions, when executed by the one or more processors, configure the second core network device to send, to the first core network device, a third message indicating a change in at least one of:
the network slice restriction, or
a user plane function selection rule.
23 . The second core network device of claim 19 , wherein the network slice restriction comprises at least one of:
a network slice isolation type descriptor; or
a degree of network slice isolation.
24 . The second core network device of claim 19 , wherein the first core network device is an access and mobility management function (AMF) device, and the second core network device is a session management function (SMF) device.