Methods, apparatuses, computer readable media and computer programs for performing admission control for limited access service

1. A network node providing wireless access, the network node comprising:

at least one processor; and

at least one memory including computer program code;

the at least one memory and computer program code configured to, with the at least one processor, cause an access point at least to perform:

providing a limited access service to one or more applications, wherein the limited access service is provided without setting up non access stratum services for a user device and in the limited access service the user device is not required to access a core network for authentication and for communication;

broadcasting information that the network node supports the limited access service, wherein the broadcasted information specifically indicates support for vehicle-to-everything communications;

receiving from the user device a request for the limited access service with one or more credentials for an application, the application comprising a vehicle-to-everything service application;

establishing a connection to an application server for authentication, the application server comprises a vehicle-to-everything application server;

sending, in response to the request, an authentication request with the one or more credentials to the application server for the application;

receiving a response indicating a result of authentication of the one or more credentials from the application server;

in response to the response indicating a successful authentication, granting the user device the limited access service for the application by:

configuring one or more radio bearers for the limited access service for the application; and

causing sending to the user device a radio resource control connection establishment response that indicates the one or more radio bearers as a response granting the limited access service for the application,

wherein the network node and another network node have overlapping coverage areas, and the other network node has a service provider different from the network node,

wherein one or more user devices subscribed with the network node access the other network node to utilize the limited access service for vehicle-to-everything communication.

2. A user device, comprising:

at least one processor; and

at least one memory including computer program code and, at least for one vehicleto-everything application, one or more preconfigured credentials;

the at least one memory and computer program code configured to, with the at least one processor, cause the user device at least to perform:

detecting a cell providing limited access service to one or more vehicle-to-everything applications including the at least one vehicle-to-everything application, wherein the limited access service is provided without setting up non access stratum services for the user device and in the limited access service the user device is not required to access a core network for authentication and for communication;

causing sending a request for the limited access service for the at least one vehicleto-everything application with the one or more preconfigured credentials in a radio resource control connection request to a network node providing the detected cell;

causing sending the request with the one or more preconfigured credentials in response to the cell locating in a network a service provider different from the service provider to which the user device has a subscription; and

performing, in response to receiving the radio resource control connection establishment response from the network node that indicates one or more radio bearers configured for the limited access service for the at least one vehicle-to-everything application, limited access service communication for the at least one vehicle-to-everything application using the indicated one or more radio bearers;

wherein the user device is configured to prioritize the limited access service provided by another network for vehicle-to-everything communications even when the user device is within coverage of its home network.

3. A vehicle-to-everything application server, comprising:

at least one processor; and

at least one memory including computer program code;

the at least one memory and computer program code configured to, with the at least one processor, cause the vehicle-to-everything application server at least to perform:

establishing a connection from a network node to the vehicle-to-everything application server for authentication;

receiving, from the network node providing wireless access to user devices, an authentication request comprising one or more credentials, wherein the network node providing wireless access to a user device provides a limited access service to one or more vehicle-to-everything service applications, wherein the limited access service is provided without setting up non access stratum services for the user device and in the limited access service the user device is not required to access a core network for authentication and for communication;

searching, amongst credentials issued by the vehicle-to-everything application server or an intelligent transportation system whereto the vehicle-to-everything application server belongs, a match for the received one or more credentials; and

sending an authentication response indicating a successful authentication in response to a match being found,

wherein the network node and another network node have overlapping coverage areas, and the other network node has a service provider different from the network node,

wherein one or more user devices subscribed with the network node access the other network node to utilize the limited access service for vehicle-to-everything communication.

4. A method, comprising:

providing, by a network node providing wireless access, a limited access service to one or more applications, wherein the limited access service is provided without setting up non access stratum services for a user device and in the limited access service the user device is not required to access a core network for authentication and for communication;

broadcasting, by the network node, information that the network node supports the limited access service, wherein the broadcasted information specifically indicates support for vehicle-to-everything communications;

receiving, in the network node from the user device, a request for the limited access service with one or more credentials for an application, the application comprising a vehicle-to-everything service application;

establishing a connection to an application server for authentication, the application server comprises a vehicle-to-everything application server;

sending, in response to the request, from the network node, an authentication request with the one or more credentials to the application server for the application;

receiving, in the network node, a response indicating a result of authentication of the one or more credentials from the application server; and

in response to the response indicating a successful authentication, granting, by the network node, the user device the limited access service for the application by:

configuring one or more radio bearers for the limited access service for the application; and

causing sending to the user device a radio resource control connection establishment response that indicates the one or more radio bearers as a response granting the limited access service for the application,

wherein the network node and another network node have overlapping coverage areas, and the other network node has a service provider different from the network node,

wherein one or more user devices subscribed with the other network node access the network node to utilize the limited access service for vehicle-to-everything communication.

5. A method comprising:

storing, by a user device, in a memory, at least for one vehicle-to-everything application, one or more preconfigured credentials:

detecting, by the user device, a cell providing limited access service to one or more vehicle-to-everything applications including the at least one vehicle-to-everything application, wherein the limited access service is provided without setting up non access stratum services for the user device and in the limited access service the user device is not required to access a core network for authentication and for communication;

causing, by the user device, sending a request for the limited access service for the at least one vehicle-to-everything application with the one or more preconfigured credentials in a radio resource control connection request to a network node providing the detected cell;

causing sending the request with the one or more preconfigured credentials in response to the cell locating in a network a service provider different from the service provider to which the user device has a subscription; and

performing, in response to receiving the radio resource control connection establishment response from the network node that indicates one or more radio bearers configured for the limited access service for the at least one vehicle-to-everything application, limited access service communication for the at least one vehicle-to-everything application using the indicated one or more radio bearers;

wherein the user device is configured to prioritize the limited access service provided by another network for vehicle-to-everything communications even when the user device is within coverage of its home network.

6. A non-transitory computer readable medium comprising program instructions encoded thereon which, when executed on an apparatus configured to act as a network node providing wireless access, cause the apparatus to perform at least:

providing a limited access service to one or more applications, wherein the limited access service is provided without setting up non access stratum services for a user device and in the limited access service the user device is not required to access a core network for authentication and for communication;

broadcasting, by the network node, information that the network node supports the limited access service, wherein the broadcasted information specifically indicates support for vehicle-to-everything communications;

receiving, in the network node from the user device, a request for the limited access service with one or more credentials for an application, the application comprising a vehicle-to-everything service application;

establishing a connection to an application server for authentication, the application server comprises a vehicle-to-everything application server;

sending, in response to the request, an authentication request with the one or more credentials to the application server for the application; and

receiving a response indicating a result of authentication of the one or more credentials from the application server; and

in response to the response indicating a successful authentication, granting the user device the limited access service for the application by:

configuring one or more radio bearers for the limited access service for the application; and

causing sending to the user device a radio resource control connection establishment response that indicates the one or more radio bearers as a response granting the limited access service for the application,

wherein the network node and another network node have overlapping coverage areas, and the other network node has a service provider different from the network node,

wherein one or more user devices subscribed with the network node access the other network node to utilize the limited access service for vehicle-to-everything communication.

7. A non-transitory computer readable medium comprising program instructions encoded thereon which, when executed on an apparatus configured to act as a user device in a wireless network, cause the apparatus to perform at least:

storing, in a memory, at least for one vehicle-to-everything application, one or more preconfigured credentials;

detecting a cell providing limited access service to one or more vehicle-to-everything applications including the at least one vehicle-to-everything application, wherein the limited access service is provided without setting up non access stratum services for the user device and in the limited access service the user device is not required to access a core network for authentication and for communication;

causing sending a request for the limited access service for the at least one vehicleto-everything application with the one or more preconfigured credentials in a radio resource control connection request to a network node providing the detected cell;

causing sending the request with the one or more preconfigured credentials in response to the cell locating in a network a service provider different from the service provider to which the user device has a subscription; and

performing, in response to receiving the radio resource control connection establishment response from the network node that indicates one or more radio bearers configured for the limited access service for the at least one vehicle-to-everything application, limited access service communication for the at least one vehicle-to-everything application using the indicated one or more radio bearers;

wherein the user device is configured to prioritize the limited access service provided by another network for vehicle-to-everything communications even when the user device is within coverage of its home network.