Abstract: A second base station receives, from a first base station, a message comprising neighbor cell information for a neighbor cell of a first cell of the first base station. The neighbor cell information indicates a height level at which the neighbor cell neighbors the first cell.

Abstract: A wireless device receives, from a first base station, non-access stratum information indicating a second session for applying session duplication of downlink packets of a first session and not applying session duplication of uplink packets of the first session. The wireless device receives, based on the non-access stratum information and via the second session, duplication of the downlink packets of the first session, and does not apply the session duplication of the uplink packets of the first session.

Abstract: A network function receives, from a radio access network (RAN), a message indicating a wireless device identifier of a wireless device, one or more requested network slices requested by the wireless device, isolation of the one or more requested network slices from one or more other network slices, and access and mobility management function (AMF) discovery. The network function sends, to a unified data management (UDM), a subscriber data request message indicating the wireless device identifier and the one or more requested network slices. The network function receives, from the UDM, a subscriber data response message indicating one or more allowed network slices that the wireless device is allowed to access. The network function determines, based on the network slice isolation information, an address of an AMF that serves the one or more allowed network slices and does not serve the one or more other network slices.

Abstract: An access and mobility management function (AMF) receives, from a first wireless device, a service request message requesting activation of a user plane connection of a PDU session for transmission of data packets to a wireless device group comprising one or more second wireless devices. The service request message comprises a multicast information associated with the wireless device group. A determination is made, based on the service request message, to activate a user plane connection of the wireless device group. A message requesting activation of the user plane connection of the wireless device group is sent to a Session Management Function (SMF).

Abstract: A base station central unit (BS-CU) transmits, to a wireless device, a first radio resource control (RRC) release message comprising a first configured uplink grant configuration, of a first cell, for an RRC inactive state or an RRC idle state of the wireless device. The BS-CU receives, from the wireless device, via a second cell different from the first cell, a second RRC message comprising a resume identity of the wireless device and indicating a release, by the wireless device, of the first configured uplink grant configuration of the first cell. The BS-CU sends, to a base station distributed unit (BS-DU) associated with the first cell, a message indicating release of the first configured uplink grant configuration.

Abstract: A base station central unit control plane (CU-CP) receives, from a base station central unit user plane (CU-UP), an indication of a size of downlink data for a wireless device. The base station CU-CP transmits, to a base station distributed unit (DU) and base on the size of the downlink data, a first paging message for the wireless device indicating a small data transmission (SDT) procedure of the wireless device.

Abstract: A method can include transmitting, by a base station to a wireless device, a radio resource control (RRC) message to transition the wireless device from an RRC connected state to an RRC inactive state. The RRC message can indicate a time period in which the wireless device is reachable by paging. The RRC message can be configured to trigger the wireless device to transition from the RRC connected state to the RRC inactive state while remaining in a connection management (CM) connected state. The RRC message can also trigger the wireless device to monitor, in the RRC inactive state, to receive a paging message during the time period after the transitioning. The RRC message can further trigger the wireless device to, in response to an expiration of the time period, stop the monitoring to receive the paging message.

Abstract: A method can include transmitting, by a wireless device to an access and mobility management function (AMF), a registration request message for the wireless device. The method can also include transmitting, by the wireless device to the AMF, a protocol data unit (PDU) session establishment request to establish a PDU session associated with an aerial service, wherein the transmitting is after an authentication and/or authorization procedure for the aerial service of the wireless device is confirmed. The method can further include receiving, by the wireless device from by the AMF, an indication of acceptance or rejection of the PDU session establishment request, wherein the rejection or acceptance of the PDU session establishment request is based on an indication of whether the aerial service of the wireless device has been authenticated and/or authorized by an uncrewed aerial system service supplier (USS).

Abstract: A session management function (SMF) receives, from a wireless device, an indication that an always-on packet data unit (PDU) session is requested. The SMF determines to establish the PDU session as an always-on PDU session based on: the indication that the always-on PDU session is requested; and the PDU session being for an ultra-reliable low-latency communication (URLLC) service. The SMF sends, to the wireless device, an indication that the PDU session is to be established as the always-on PDU session.

Abstract: Systems, apparatuses, and methods are described for wireless communications. Third party charging may be performed to provide services for a wireless device. One or more policies may be determined for the wireless device based on charging information.

Abstract: An access and mobility management function (AMF) receives from a session management function (SMF) a first session configuration request message for a packet duplication of a first session between a user plane function (UPF) and a wireless device. The AMF receives from the SMF, based on traffic load information received at the SMF from the UPF, a first message for activation of a configuration of the packet duplication of the first session of the wireless device. The AMF sends to the SMF a second message indicating a result of the activation of the packet duplication of the first session.

Abstract: A base station may include one or more processors and memory storing instructions that, when executed by the one or more processors, cause the base station to perform a process. The process may include sending, to a wireless device, a radio resource control (RRC) message comprising at least one packet data convergence protocol (PDCP) configuration parameter indicating Ethernet header compression for a data radio bearer. The method may also include sending, to the wireless device, information associated with the Ethernet header compression. The information may include a source medium access control (MAC) address and a destination MAC address, as well as a header compression index corresponding to the source MAC address and the destination MAC address. The process may further include sending, to the wireless device, a compressed Ethernet packet comprising a packet header being compressed and the corresponding header compression index.

Abstract: A user plane function receives, from a session management function, a request for at least one quality of service (QoS) report for a data flow, the request indicating: a QoS event; and a first QoS value for the QoS event. Monitoring packets for monitoring a second QoS value of the data flow are sent to a base station. A determination is made of an occurrence of the QoS event based on the second QoS value and the first QoS value. An indication of the occurrence is sent to the session management function.

Abstract: A wireless device may communicate with a base station via a cell. A cell may be selected for wireless communications based on having a configuration that is capable of serving certain wireless resources associated with a wireless device. A wireless device may select a cell that comprises a communication link supporting certain wireless resources that may be required for use by the wireless device.

Abstract: An access and mobility management function (AMF) receives a request to establish a session from a wireless device. A control plane cellular internet of things (CIoT) indication requesting discovery of a session management function (SMF) that supports exchange of user data between the wireless device and the SMF is sent to a network repository function (NRF). An instance of the SMF is received from the NRF. A request to establish the session for CIoT packet transmission is sent to the SMF.

Abstract: A session management function (SMF) sends, to a policy control function (PCF), a policy request message comprising a network identifier for a non-public network (NPN) and a PLMN identifier for the NPN. The SMF receives, from the PCF, a policy response message comprising a charging control policy.

Abstract: An access and mobility management function (AMF) of a first network receives, from a first network function, a first indication that a session of a wireless device with a second network is released. The AMF sends, to a base station and based on the session being released, a second indication that transition of the wireless device to a radio resource control (RRC) idle state is allowed.

Abstract: A method may include sending, to a wireless device, a system information block (SIB) indicating that restricted local operator services (RLOS) are supported by a public land mobile network. The method may also include receiving, from the wireless device and after the sending of the SIB indicating support for the RLOS, a preamble. The method may further include sending, to the wireless device, a random access response to the preamble. The method may additionally include receiving, from the wireless device and after the random access response, at least one first radio resource control (RRC) message. The message may indicate that an RRC connection of the wireless device is for the RLOS and that an attach request of the wireless device is for the RLOS. The method may also include sending, to the wireless device, a second RRC message comprising an attach accept message indicating acceptance of the RLOS.

Abstract: A method may include receiving, by a wireless device from an access and mobility management function (AMF), a registration accept message comprising one or more configuration parameters of the wireless device. The method may also include receiving, by the wireless device from the AMF, a wireless device configuration update command that includes a parameter for a multimedia priority service (MPS) configuration of the wireless device. The method may further include sending, by the wireless device to the AMF, a packet data unit (PDU) session establishment request after receiving the parameter for the MPS configuration of the wireless device.

Abstract: A second base station may perform a method including sending, to a wireless device, an indication of a data radio bearer (DRB) configured for a small data transmission (SDT) procedure of the wireless device. The method may include receiving, from a first base station, a request for a context of the wireless device. The method may include sending, to the first base station, in response to the request, a response message. The response message may indicate that the context of the wireless device is not being relocated and may indicate the DRB configured for the SDT procedure. The method may include receiving, from the first base station, downlink data forwarding information associated with the DRB configured for the SDT procedure. The method may include, consistent with the downlink data forwarding information, sending, to the first base station, downlink data of the SDT procedure received from a core network node.