Standalone non-public network access
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine whether a standalone non-public network (SNPN), to which the UE is not subscribed, permits access to subscribers of a network to which the UE is subscribed. The UE may register with the SNPN based at least in part on a determination that the SNPN permits access to subscribers of the network to which the UE is subscribed. Numerous other aspects are provided.
1 . A method of wireless communication performed by a user equipment (UE), comprising:
receiving, from a network node, a broadcast communication indicating a plurality of standalone non-public networks (SNPNs), and indicating, per SNPN, of the plurality of SNPNs, whether the SNPN supports access from UEs not subscribed to the one or more SNPNs;
comparing an SNPN identifier of an SNPN to a set of SNPN identifiers, the set of SNPN identifiers comprising subscription permanent identifiers (SUPIs) corresponding to the plurality of SNPNs, wherein the set of SNPN identifiers is based at least in part on the broadcast communication;
determining, based at least in part on the comparing, that the SNPN permits access from UEs subscribed to a network different from the SNPN;
selecting the SNPN, from the plurality of SNPNs, based at least in part on the SNPN identifier of the SNPN having a highest priority among the set of SNPN identifiers corresponding to the plurality of SNPNs; and
registering with the SNPN using subscription information of the network to which the UE is subscribed, based at least in part on determining that the SNPN permits access to subscribers of the network to which the UE is subscribed.
2 . The method of claim 1 , further comprising:
receiving a communication that includes the SNPN identifier of the SNPN.
3 . The method of claim 2 , further comprising:
receiving, from a network entity of the network, a configuration for the set of SNPN identifiers prior to determining whether the SNPN permits access to subscribers of the network.
4 . The method of claim 1 , further comprising:
receiving the broadcast communication, wherein the broadcast communication includes one or more network identifiers corresponding to respective networks of which subscribers are permitted access to the SNPN; and
comparing an identifier of the network to the one or more network identifiers.
5 . The method of claim 4 ,
wherein the one or more network identifiers are shortened network identifiers that correspond to full network identifiers of the respective networks, and the identifier of the network is a shortened identifier that corresponds to a full network identifier of the network.
6 . The method of claim 4 , further comprising transmitting a request to receive the one or more network identifiers,
wherein the broadcast communication that includes the one or more network identifiers is a response to the request.
7 . The method of claim 6 , further comprising
receiving, prior to transmitting the request, another communication that indicates support for requests to receive the one or more network identifiers.
8 . The method of claim 6 ,
wherein the request is a first unauthenticated non-access stratum (NAS) message, a first authenticated NAS message, a first radio resource control (RRC) message, or a system information request message, and
wherein the response is a second unauthenticated NAS message, a second authenticated NAS message, a second RRC message, or a system information block message.
9 . The method of claim 1 ,
wherein a first SNPN is determined to permit access to subscribers of a first network and a second SNPN is determined to permit access to subscribers of a second network, and
wherein the method further comprises selecting the first SNPN or the second SNPN as the SNPN with which the UE is to register.
10 . The method of claim 1 ,
wherein registering with the SNPN comprises transmitting a subscription identifier associated with the network.
11 . The method of claim 1 ,
wherein selecting the SNPN from the one or more SNPNs further comprises:
determining the SNPN identifier having the highest priority based at least in part on a configuration of a priority order for the set of SNPN identifiers.
12 . The method of claim 3 , further comprising:
periodically receiving an updated configuration for the set of SNPN identifiers.
13 . The method of claim 1 , further comprising:
receiving the broadcast communication from a base station, wherein the one or more SNPNs are associated with the base station.
14 . The method of claim 1 ,
wherein a cell is shared by the one or more SNPNs.
15 . The method of claim 1 , further comprising:
receiving the broadcast communication in a system information block.
16 . The method of claim 1 , further comprising:
entering a SNPN access mode.
17 . A user equipment (UE) for wireless communication, comprising:
a transceiver;
one or more memories; and
one or more processors coupled to the transceiver and the one or more memories, wherein the one or more processors are configured to:
receive, from a network node via the transceiver, a broadcast communication indicating a plurality of standalone non-public networks (SNPNs), and indicating, per SNPN, of the plurality of SNPNs, whether the SNPN supports access from UEs not subscribed to the plurality of SNPNs;
compare an SNPN identifier of an SNPN to a set of SNPN identifiers, the set of SNPN identifiers comprising subscription permanent identifiers (SUPIs) corresponding to the plurality of SNPNs, wherein the set of SNPN identifiers is based at least in part on the broadcast communication;
determine, based at least in part on the comparing, that the SNPN permits access from UEs subscribed to a network different from the SNPN;
select the SNPN, from the plurality of SNPNs, based at least in part on the SNPN identifier of the SNPN having a highest priority among the set of SNPN identifiers corresponding to the plurality of SNPNs; and
register with the SNPN using subscription information of the network to which the UE is subscribed, based at least in part on determining that the SNPN permits access to subscribers of the network to which the UE is subscribed.
18 . The UE of claim 17 ,
wherein the one or more processors are further configured to:
receive a communication that includes the SNPN identifier of the SNPN.
19 . The UE of claim 18 ,
wherein the one or more processors are further configured to receive, from a network entity of the network, a configuration for the set of SNPN identifiers prior to determining whether the SNPN permits access to subscribers of the network.
20 . The UE of claim 17 ,
wherein the one or more processors are further configured to:
receive the broadcast communication, wherein the broadcast communication includes one or more network identifiers corresponding to respective networks of which subscribers are permitted access to the SNPN; and
compare an identifier of the network to the one or more network identifiers.
21 . The UE of claim 20 ,
wherein the one or more network identifiers are shortened network identifiers that correspond to full network identifiers of the respective networks, and the identifier of the network is a shortened identifier that corresponds to a full network identifier of the network.
22 . The UE of claim 20 ,
wherein the one or more processors are further configured to transmit a request to receive the one or more network identifiers,
wherein the broadcast communication that includes the one or more network identifiers is a response to the request.
23 . The UE of claim 22 ,
wherein the one or more processors are further configured to receive, prior to transmitting the request, another communication that indicates support for requests to receive the one or more network identifiers.
24 . The UE of claim 22 ,
wherein the request is a first unauthenticated non-access stratum (NAS) message, a first authenticated NAS message, a first radio resource control (RRC) message, or a system information request message, and
wherein the response is a second unauthenticated NAS message, a second authenticated NAS message, a second RRC message, or a system information block message.
25 . The UE of claim 17 ,
wherein a first SNPN is determined to permit access to subscribers of a first network and a second SNPN is determined to permit access to subscribers of a second network, and
wherein the one or more processors are further configured to select the first SNPN or the second SNPN as the SNPN with which the UE is to register.
26 . The UE of claim 17 ,
wherein the one or more processors, when registering with the SNPN, are configured to transmit a subscription identifier associated with the network.
27 . The UE of claim 17 ,
wherein the one or more processors, to select the SNPN from the one or more SNPNs, are further configured to:
determine the SNPN identifier having the highest priority based at least in part on a configuration of a priority order for the set of SNPN identifiers.
28 . The UE of claim 19 ,
wherein the one or more processors are further configured to:
periodically receive an updated configuration for the set of SNPN identifiers.
29 . A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to:
receive, from a network node, a broadcast communication indicating a plurality of standalone non-public networks (SNPNs), and indicating per SNPN, of the plurality of SNPNs, of whether the SNPN supports access from UEs not subscribed to the plurality of SNPNs;
compare an SNPN identifier of an SNPN to a set of SNPN identifiers, the set of SNPN identifiers comprising subscription permanent identifiers (SUPIs) corresponding to the plurality of SNPNs, wherein the set of SNPN identifiers is based at least in part on the broadcast communication;
determine, based at least in part on the comparing, that the SNPN permits access from UEs subscribed to a network different from the SNPN;
select the SNPN, from the plurality of SNPNs, based at least in part on the SNPN identifier of the SNPN having a highest priority among the set of SNPN identifiers corresponding to the plurality of SNPNs; and
register with the SNPN using subscription information of the network to which the UE is subscribed, based at least in part on determining that the SNPN permits access to subscribers of the network to which the UE is subscribed.
30 . An apparatus for wireless communication, comprising:
means for receiving, from a network node, a broadcast communication indicating a plurality of standalone non-public networks (SNPNs), and indicating, per SNPN, of the plurality of SNPNs, whether the SNPN supports access from UEs not subscribed to the plurality of SNPNs;
means for comparing an SNPN identifier of an SNPN to a set of SNPN identifiers, the set of SNPN identifiers comprising subscription permanent identifiers (SUPIs) corresponding to the plurality of SNPNs, wherein the set of SNPN identifiers is based at least in part on the broadcast communication;
means for determining, based at least in part on the comparing, that the SNPN permits access from UEs subscribed to a network different from the SNPN;
means for selecting the SNPN, from the plurality of SNPNs, based at least in part on the SNPN identifier of the SNPN having a highest priority among the set of SNPN identifiers corresponding to the plurality of SNPNs; and
means for registering with the SNPN using subscription information of the network to which the apparatus is subscribed, based at least in part on determining that the SNPN permits access to subscribers of the network to which the apparatus is subscribed.