Wireless device request for protocol data unit session
A method can include sending, by a wireless device to an access and mobility management function (AMF) a non-access stratum (NAS) message indicating a request to establish a packet data unit (PDU) session to join a group communication session. The NAS message can include an identifier of the group communication session, an identifier of a network slice, and a protocol configuration option information. The method can also include receiving, by the wireless device from the AMF, a response message indicating acceptance of the request.
1 . A method comprising:
sending, by a wireless device to an access and mobility management function (AMF) a non-access stratum (NAS) message indicating a request to establish a packet data unit (PDU) session to join a group communication session, wherein the group communication session is an activated group communication session, the NAS message comprising:
an identifier of the group communication session, wherein the AMF is configured to select a session management function (SMF) for the group communication session based on a query to a network repository function (NRF), wherein the query comprises the identifier of the group communication session;
an identifier of a network slice; and
a protocol configuration option information; and
receiving, by the wireless device from the AMF, a response message indicating acceptance of the request.
2 . The method of claim 1 , wherein the identifier of the group communication session comprises a data network name.
3 . The method of claim 1 , wherein the identifier of the group communication session comprises a single network slice selection assistance information (S-NSSAI).
4 . The method of claim 1 , wherein the NAS message further comprises an identifier of the wireless device.
5 . The method of claim 4 , wherein the identifier of the wireless device comprises a subscriber permanent identifier.
6 . The method of claim 4 , wherein the identifier of the wireless device comprises a generic public subscription identifier.
7 . The method of claim 1 , wherein the network repository function (NRF) maintains an association of the SMF with the identifier associated with the group communication session.
8 . A wireless device, comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the wireless device to perform:
sending, to an access and mobility management function (AMF) a non-access stratum (NAS) message indicating a request to establish a packet data unit (PDU) session to join a group communication session, wherein the group communication session is an activated group communication session, the NAS message comprising:
an identifier of the group communication session, wherein the AMF is configured to select a session management function (SMF) for the group communication session based on a query to a network repository function (NRF), wherein the query comprises the identifier of the group communication session;
an identifier of a network slice; and
a protocol configuration option information; and
receiving, from the AMF, a response message indicating acceptance of the request.
9 . The wireless device of claim 8 , wherein the identifier of the group communication session comprises a data network name.
10 . The wireless device of claim 8 , wherein the identifier of the group communication session comprises a single network slice selection assistance information (S-NSSAI).
11 . The wireless device of claim 8 , wherein the NAS message further comprises an identifier of the wireless device.
12 . The wireless device of claim 11 , wherein the identifier of the wireless device comprises a subscriber permanent identifier.
13 . The wireless device of claim 11 , wherein the identifier of the wireless device comprises a generic public subscription identifier.
14 . The wireless device of claim 8 , wherein the network repository function (NRF) maintains an association of the SMF with the identifier associated with the group communication session.
15 . A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a wireless device, cause the wireless device to perform:
sending, to an access and mobility management function (AMF) a non-access stratum (NAS) message indicating a request to establish a packet data unit (PDU) session to join a group communication session, wherein the group communication session is an activated group communication session, the NAS message comprising:
an identifier of the group communication session, wherein the AMF is configured to select a session management function (SMF) for the group communication session based on a query to a network repository function (NRF), wherein the query comprises the identifier of the group communication session;
an identifier of a network slice; and
a protocol configuration option information; and
receiving, from the AMF, a response message indicating acceptance of the request.
16 . The non-transitory computer-readable medium of claim 15 , wherein the identifier of the group communication session comprises a data network name.
17 . The non-transitory computer-readable medium of claim 15 , wherein the identifier of the group communication session comprises a single network slice selection assistance information (S-NSSAI).
18 . The non-transitory computer-readable medium of claim 15 , wherein the NAS message further comprises an identifier of the wireless device.
19 . The non-transitory computer-readable medium of claim 18 , wherein the identifier of the wireless device comprises a subscriber permanent identifier.
20 . The non-transitory computer-readable medium of claim 18 , wherein the identifier of the wireless device comprises a generic public subscription identifier.