Abstract: Systems, methods, and software of directly connecting a SIM-less device with a cellular network. In one embodiment, User Equipment (UE) includes a Subscriber Identity Module 5 (SIM) provisioned with a plurality of subscription profiles for subscriptions to the cellular network. The UE establishes a direct communication with a SIM-less device that does not have a subscription with the cellular network. The UE selects one of the subscriptions provisioned in the SIM as a temporary subscription assigned to the SIM-less device to allow the SIM-less device to establish a direct connection with the cellular network using the 10 temporary subscription, and transmits a message to the SIM-less device via the direct communication containing subscription credentials for the temporary subscription. The SIM-less device may therefore register with the cellular network using the subscription credentials provided by the UE, and establish a direct connection with the cellular network using the temporary subscription.

Abstract: There is provided an apparatus, said apparatus comprising means for providing a first registration request from a user equipment to a first visited network for a first network slice provided by the first visited network and providing a further registration request from the user equipment to at least one second visited network for at least one second network slice provided by the second visited network, wherein the first network slice and at least one second network slice are mapped to subscribed network slices in a home network and the at least one second network slice is not provided by the first visited network.

Abstract: Methods, apparatuses, and computer program products are described that support access to multiple mutually exclusive, isolated, and/or disjointed network slices by User Equipment, UE, across one or more networks. The UE connects (1102) to multiple network slices via a Radio Access Network, RAN, by way of one or more Radio Resource Control, RRC, connections. The RRC connections are maintained (1104) between the UE and a respective network slice by switching the connection to inactive or idle when another RRC connection needs to be established. The UE and/or the RAN switches (1106) an RRC connection from an inactive state to an active state based on a trigger condition such as receipt of a notification that downlink data is available over the inactive RRC connection. A Unified Data Management Function, UDM, stores and updates registration state information for the UE and multiple Access and Mobility Management Functions, AMFs.

Abstract: There is provided an apparatus, said apparatus comprising means for at a user equipment registered with a first network and a second network, accessing the second network and receiving at the user equipment from the second network a downlink data notification associated with the first network.

Abstract: A method, apparatus, and computer program product for detecting and switching between locally available PLMNs accessible to a user equipment based on a Preferred PLMN List and a Network Slice Aware PLMN Exceptions List configured by a HPLMN. The user equipment connects to a preferred VPLMN. The user equipment determines that a particular network function is not supported by the connected preferred VPLMN. The user equipment determines that another VPLMN is required to support the particular network function. The user equipment then switches to a non-preferred VPLMN which supports the particular network function.

Abstract: A technique comprising: broadcasting, from a user equipment device having user equipment functionality in a mobile communication system, a message announcing to receiving devices a gateway service for transfer of data to and/or from a radio access network of the mobile communication system via the user equipment device.

Abstract: Systems, methods, and software of directly connecting a SIM-less device with a cellular network. In one embodiment, User Equipment (UE) includes a Subscriber Identity Module (SIM) provisioned with a plurality of subscription profiles for subscriptions to the cellular network. The UE establishes a direct communication with a SIM-less device that does not have a subscription with the cellular network. The UE selects one of the subscriptions provisioned in the SIM as a temporary subscription assigned to the SIM-less device to allow the SIM-less device to establish a direct connection with the cellular network using the temporary subscription, and transmits a message to the SIM-less device via the direct communication containing subscription credentials for the temporary subscription. The SIM-less device may therefore register with the cellular network using the subscription credentials provided by the UE, and establish a direct connection with the cellular network using the temporary subscription.

Abstract: Techniques for providing a secure clock source in a communication network are disclosed. For example, a method comprises participating in a bi-directional authentication with a network entity in a communication network, sending a clock service request message to the network entity, receiving a clock service accept message in response to the clock service request message when the apparatus is eligible to use a clock service, and receiving one or more secure clock signals from the network entity. Another method comprises participating in a bi-directional authentication with a requesting device in a communication network, receiving a clock service request message from the requesting device, verifying the eligibility of the requesting device to request a clock service, and sending one or more secure clock signals to the requesting device in response to successfully verifying the requesting device.

Abstract: A method, apparatus, and computer program product provide for controlling access attempts for wireless backhaul. In the context of a method, the method constructs an access request comprising an Integrated Access and Backhaul (IAB) access indication. The method further determines whether the access attempt is allowed for a particular cell, and if so, determines an establishment cause value based at least on the IAB access indication. The method also causes transmission of the access request and establishment cause value.

Abstract: Methods and apparatus, including computer program products, are provided for public warning messages. In some example embodiment, there may be provided a method including receiving, at a user equipment, an indication, wherein the indication indicates whether a radio access network provides support for public warning system warning messages and/or indicates whether the radio access network allows the public warning system warning messages to be received by non-allowed user equipment; and deciding, by the user equipment, whether to select or reselect the radio access network based on the received indication. Related systems, methods, and articles of manufacture are also disclosed.

Abstract: Systems, methods, and software of directly connecting a SIM-less device with a cellular network. In one embodiment, User Equipment (UE) includes a Subscriber Identity Module (SIM) provisioned with a plurality of subscription profiles for subscriptions to the cellular network. The UE establishes a direct communication with a SIM-less device that does not have a subscription with the cellular network. The UE selects one of the subscriptions provisioned in the SIM as a temporary subscription assigned to the SIM-less device to allow the SIM-less device to establish a direct connection with the cellular network using the temporary subscription, and transmits a message to the SIM-less device via the direct communication containing subscription credentials for the temporary subscription. The SIM-less device may therefore register with the cellular network using the subscription credentials provided by the UE, and establish a direct connection with the cellular network using the temporary subscription.

Abstract: Methods and apparatus, including computer program products, are provided for public warning messages. In some example embodiment, there may be provided a method including receiving, at a user equipment, an indication, wherein the indication indicates whether a radio access network provides support for public warning system warning messages and/or indicates whether the radio access network allows the public warning system warning messages to be received by non-allowed user equipment; and deciding, by the user equipment, whether to select or reselect the radio access network based on the received indication. Related systems, methods, and articles of manufacture are also disclosed.

Abstract: Techniques for providing a secure clock source in a communication network are disclosed. For example, a method comprises participating in a bi-directional authentication with a network entity in a communication network, sending a clock service request message to the network entity, receiving a clock service accept message in response to the clock service request message when the apparatus is eligible to use a clock service, and receiving one or more secure clock signals from the network entity. Another method comprises participating in a bi-directional authentication with a requesting device in a communication network, receiving a clock service request message from the requesting device, verifying the eligibility of the requesting device to request a clock service, and sending one or more secure clock signals to the requesting device in response to successfully verifying the requesting device.

Abstract: A method, apparatus, and computer program product provide for controlling access attempts for wireless backhaul. In the context of a method, the method constructs an access request comprising an Integrated Access and Backhaul (IAB) access indication. The method further determines whether the access attempt is allowed for a particular cell, and if so, determines an establishment cause value based at least on the IAB access indication. The method also causes transmission of the access request and establishment cause value.

Abstract: A technique includes detecting, by a user device, a network slice associated with an access attempt by the user device to access a wireless network, and making, by the user device, a barring decision for the access attempt based on the network slice associated with the access attempt. Another example technique may include receiving, by a base station from one or more core network entities within a wireless network, network slice-specific load information that indicates a load for each of one or more network slices, determining, by the base station based on the received network slice-specific load information, a barring configuration that indicates a set of barring parameters for one or more access categories, and sending, by the base station to a user device, the barring configuration to reduce a load on the wireless network.