Method for broadcast and index generation in UE
According to certain embodiments, a method in a wireless device comprises detecting system information broadcast from a network node. The system information comprises a list of Non-Public Network (NPN) identifiers identifying a plurality of NPNs. The method comprises selecting a network from the plurality of NPNs and determining an index value associated with the selected network. When the NPN identifier associated with the selected network comprises a Closed Access Group (CAG) identifier, determining the index value is based at least partially on Public Land Mobile Network (PLMN) elements included in combination with at least one CAG identifier in the list of NPN identifiers. When the NPN identifier associated with the selected network comprises a Network Identifier (NID), determining the index value is based at least partially on a number of NIDs included in the list of NPN identifiers.
1. A wireless device, the wireless device comprising:
power supply circuitry configured to supply power to the wireless device; and
processing circuitry, the processing circuitry configured to:
receive, from a radio network, system information, the system information comprising a list of Non-Public Network (NPN) identifiers identifying a plurality of NPNs;
select a network from the plurality of NPNs;
determine an index value associated with the selected network, wherein:
when the NPN identifier associated with the selected network comprises a Closed Access Group (CAG) identifier, determining the index value is based at least partially on Public Land Mobile Network (PLMN) identities included in combination with at least one CAG identifier in the list of NPN identifiers; or
when the NPN identifier associated with the selected network comprises a Network Identifier (NID), determining the index value is based at least partially on a number of NIDs included in the list of NPN identifiers; and
transmit, to the radio network, a message comprising an indication of the index value associated with the selected network.
2. The wireless device of claim 1 , wherein the NPN identifier associated with the selected network comprises the CAG identifier, and wherein determining the index value is based on using a same index value for all NPNs that are identified by a respective CAG identifier and are associated with a same PLMN in the system information.
3. The wireless device of claim 1 , wherein the NPN identifier associated with the selected network comprises the NID, and wherein determining the index value is based on each NPN that the system information identifies by a respective NID having an index value of the respective NPN.
4. The wireless device of claim 1 , the processing circuitry further configured to:
use the index value during connection setup to indicate that the wireless device requests access to the selected network; or
use the index value to determine Unified Access Control (UAC) parameters associated with the selected network.
5. The wireless device of claim 1 , the processing circuitry further configured to:
generate a network index based on the system information, wherein to generate the network index the processing circuitry is configured to:
determine whether the system information includes a list comprising one or more PLMN identities and, when the system information includes the list comprising one or more PLMN identities, including one or more index values for the one or more PLMN identities in the network index;
determine whether the list of NPN identifiers includes a list comprising one or more CAG identifiers and, when the list of NPN identifiers includes the list comprising one or more CAG identifiers, including one or more index values for the one or more CAG identifiers in the network index; and
determine whether the list of NPN identifiers includes a list comprising one or more NIDs and, when the list of NPN identifiers includes the list comprising one or more NIDs, including one or more index values for the one or more NIDs in the network index;
wherein the index value associated with the selected network is determined based on the network index.
6. The wireless device of claim 5 , the processing circuitry further configured to:
detect a parameter indicating that a cell is an NPN-only cell and, in response, generate the network index assuming that there are no index values for PLMN identities to include in the network index.
7. A method in a wireless device, the method comprising:
receiving, from a radio network, system information the system information comprising a list of Non-Public Network (NPN) identifiers identifying a plurality of NPNs;
selecting a network from the plurality of NPNs;
determining an index value associated with the selected network, wherein:
when the NPN identifier associated with the selected network comprises a Closed Access Group (CAG) identifier, determining the index value is based at least partially on Public Land Mobile Network (PLMN) identities included in combination with at least one CAG identifier in the list of NPN identifiers; or
when the NPN identifier associated with the selected network comprises a Network Identifier (NID), determining the index value is based at least partially on a number of NIDs included in the list of NPN identifiers; and
transmitting, to a radio network, a message comprising an indication of the index value associated with the selected network.
8. The method of claim 7 , wherein the NPN identifier associated with the selected network comprises the CAG identifier, and wherein determining the index value is based on using a same index value for all NPNs that are identified by a respective CAG identifier and are associated with a same PLMN in the system information.
9. The method of claim 7 , wherein the NPN identifier associated with the selected network comprises the NID, and wherein determining the index value is based on each NPN that the system information identifies by a respective NID having an index value of the respective NPN.
10. The method of claim 7 , further comprising:
using the index value during connection setup to indicate that the wireless device requests access to the selected network; or
using the index value to determine Unified Access Control (UAC) parameters associated with the selected network.
11. A network node, the network node comprising:
power supply circuitry configured to supply power to the network node; and
processing circuitry, the processing circuitry configured to:
transmit, to a wireless device, system information comprising a list of Non-Public Network (NPN) identifiers identifying a plurality of NPNs; and
receiving, from the wireless device, a message comprising an indication of an index value associated with a network of the plurality of NPNs, wherein:
when the NPN identifier associated with said network comprises a Closed Access Group (CAG) identifier, the index value is based at least partially on Public Land Mobile Network (PLMN) identities included in combination with at least one CAG identifier in the list of NPN identifiers; or
when the NPN identifier associated with said network comprises a Network Identifier (NID), the index value is based at least partially on a number of NIDs included in the list of NPN identifiers.
12. The network node of claim 11 , wherein the NPN identifier associated with said network comprises the CAG identifier, and wherein the index value is based on using a same index value for all NPNs that are identified by a respective CAG identifier and are associated with a same PLMN in the system information.
13. The network node of claim 11 , wherein the NPN identifier associated with said network comprises the NID, and wherein determining the index value is based on each NPN that the system information identifies by a respective NID having an index value of the respective NPN.
14. The network node of claim 11 , the processing circuitry further configured to:
determine that a wireless device requests access to said network based on receiving the message comprising the indication of the index value associated with said network from the wireless device during connection setup; or
transmit Unified Access Control (UAC) parameters with the index value associated with said network in order to indicate that the UAC parameters are associated with said network.
15. The network node of claim 11 , the processing circuitry further configured to generate a network index based on the system information, wherein:
when the system information includes a list comprising one or more PLMN identities, the network index includes one or more index values for the one or more PLMN identities;
when the list of NPN identifiers includes a list comprising one or more CAG identifiers, the network index includes one or more index values for the one or more CAG identifiers; and
when the list of NPN identifiers includes a list comprising one or more NIDs, the network index includes including one or more index values for the one or more NIDs;
wherein the index value associated with said network is based on the network index.
16. The network node of claim 11 , the processing circuitry further configured to:
transmit a parameter indicating that a cell is an NPN-only cell, thereby indicating to a wireless device that there are no index values for PLMN identities to include in a network index.
17. A method in a network node, the method comprising:
transmitting, to a wireless device, system information comprising a list of Non-Public Network (NPN) identifiers identifying a plurality of NPNs; and
receiving, from the wireless device, a message comprising an indication of an index value associated with a network of the plurality of NPNs, wherein:
when the NPN identifier associated with said network comprises a Closed Access Group (CAG) identifier, the index value is based at least partially on Public Land Mobile Network (PLMN) identities included in combination with at least one CAG identifier in the list of NPN identifiers; or
when the NPN identifier associated with said network comprises a Network Identifier (NID), the index value is based at least partially on a number of NIDs included in the list of NPN identifiers.
18. The method of claim 17 , wherein the NPN identifier associated with said network comprises the CAG identifier, and wherein the index value is based on using a same index value for all NPNs that are identified by a respective CAG identifier and are associated with a same PLMN in the system information.
19. The method of claim 17 , wherein the NPN identifier associated with said network comprises the NID, and wherein determining the index value is based on each NPN that the system information identifies by a respective NID having an index value of the respective NPN.
20. The method of claim 17 , further comprising:
determining that a wireless device requests access to said network based on receiving the message comprising the indication of the index value associated with said network from the wireless device during connection setup; or
transmitting Unified Access Control (UAC) parameters with the index value associated with said network in order to indicate that the UAC parameters are associated with said network.