ENABLING SERVICE CONTINUITY BETWEEN STANDALONE NON-PUBLIC NETWORK AND PLMN
Systems and methods are described herein for enabling service continuity between standalone non-public network (SNPN) and a public land mobile network (PLMN). A wireless transmit/receive unit (WTRU) may enable service continuity, for example, by triggering a temporary leave of the WTRU from a serving SNPN to prepare a pre-established backup user plane (UP) connection in a PLMN. A network may enable service continuity, for example, by triggering a temporary leave of a WTRU from a serving SNPN to prepare a pre-established backup UP connection in a PLMN. A WTRU may switch back to SNPN from PLMN, for example, using an SNPN priority search mode and/or other WTRU behavior(s).
1 - 20 . (canceled)
21 . A wireless transmit/receive unit (WTRU) comprising:
a processor and memory, the processor and memory configured to:
register with a public land mobile network (PLMN) and camp on a cell of the PLMN;
determine configuration information for searching for cells of a non-public network, wherein the configuration information indicates one or more triggers for searching for the cells of the non-public network when the WTRU is in idle mode and camped on a cell of the PLMN;
determine that at least one of the one or more triggers for searching for the cells of the non-public network has occurred while the WTRU is in idle mode and camped on the cell of the PLMN; and
search for the cells of the non-public network based on the determination that the at least one of the one or more triggers has occurred.
22 . The WTRU of claim 21 , wherein the processor and memory are configured to prioritize searching for the cells of the non-public network upon determining that the at least one of the one or more triggers has occurred.
23 . The WTRU of claim 22 , wherein the processor and memory are configured to refrain from searching cells of the PLMN when prioritizing searching for the cells of the non-public network.
24 . The WTRU of claim 22 , wherein the processor and memory are configured to:
determine that a suitable non-public network cell was not found in a period of time after initiation of the search for the cells of the non-public network; and
initiate a search for cells of the PLMN based on a determination that a suitable non-public network cells was not found.
25 . The WTRU of claim 21 , wherein the non-public network is a standalone non-public network.
26 . The WTRU of claim 21 , wherein the one or more triggers for searching for the cells of the non-public network occurs upon the elapse of a determined time period.
27 . The WTRU of claim 26 , wherein the determined time period is associated with a location update or a registration update that is configured for the PLMN.
28 . The WTRU of claim 21 , wherein the one or more triggers for searching for the cells of the non-public network occurs if a cell receive power level drops below a threshold level or if a cell quality level drops below a threshold level.
29 . The WTRU of claim 21 , wherein the processor and memory are further configured to:
detect one or more non-public networks;
present the one or more detected non-public network to a user; and
wait for the user to select a non-public network from the one or more non-public networks.
30 . The WTRU of claim 21 , wherein the processor and memory are further configured to:
detect one or more non-public networks;
activate an access mode that selects a non-public network from the one or more non-public networks; and
register the WTRU with the selected non-public network.
31 . A method implemented by a wireless transmit/receive unit (WTRU), the method comprising:
registering with a public land mobile network (PLMN) and camp on a cell of the PLMN;
determining configuration information for searching for cells of a non-public network, wherein the configuration information indicating one or more triggers for searching for the cells of the non-public network when the WTRU is in idle mode and camped on a cell of the PLMN;
determining that at least one of the one or more triggers for searching for the cells of the non-public network has occurred while the WTRU is in idle mode and camped on the cell of the PLMN; and
searching for the cells of the non-public network based on the determination that the at least one of the one or more triggers has occurred.
32 . The method of claim 31 , the method comprising searching for the cells of the non-public network upon determining that the at least one of the one or more triggers has occurred.
33 . The method of claim 32 , the method comprising refraining from searching cells of the PLMN when prioritizing searching for the cells of the non-public network.
34 . The method of claim 32 , the method comprising:
determining that a suitable non-public network cell was not found in a period of time after initiation of the search for the cells of the non-public network; and
initiating a search for cells of the PLMN based on a determination that a suitable non-public network cells was not found.
35 . The method of claim 31 , wherein the non-public network is a standalone non-public network.
36 . The method of claim 31 , wherein the one or more triggers for searching for the cells of the non-public network occurs upon the elapse of a determined time period.
37 . The method of claim 36 , wherein the determined time period is associated with a location update or a registration update that is configured for the PLMN.
38 . The method of claim 31 , wherein the one or more triggers for searching for the cells of the non-public network occurs if a cell receive power level drops below a threshold level or if a cell quality level drops below a threshold level.
39 . The method of claim 31 , wherein the processor and memory are further configured to:
detecting one or more non-public networks;
presenting the one or more detected non-public network to a user; and
waiting for the user to select a non-public network from the one or more non-public networks.
40 . The method of claim 31 , wherein the processor and memory are further configured to:
detecting one or more non-public networks;
activating an access mode that selects a non-public network from the one or more non-public networks; and
registering the WTRU with the selected non-public network.