Abstract: A base station transmits, to a wireless device, at least one first radio resource control message comprising configuration parameters for a first session associated with a first session identifier between the wireless device and a user plane function and a second session associated with a second session identifier different from the first session identifier, for packet duplication of the first session, between the wireless device and the user plane function. The base station transmits, to the wireless device, at least one second radio resource control message indicating activation of the packet duplication. Based on the activation of the packet duplication, the base station receives original packets via the first session associated with the user plane function and duplicated packets of the first session via the second session.

Abstract: A wireless device in an RRC connected state receives a radio resource control (RRC) message from a base station. The wireless device transitions from the RRC connected state to an RRC inactive station in response to the RRC message. The RRC message indicates an active time period in which the wireless device is reachable by paging. The wireless device monitors to receive a paging message during the active time period after the transitioning. The wireless stops monitoring for the paging message in response to the expiration of the active time period.

Abstract: An access and mobility management function (AMF) receives from a wireless device, a first message indicating a request for a group communication session. The first message comprises a group communication session identifier. The AMF selects a session management function (SMF) for the group communication session of the wireless device. The AMF sends to a unified data management function (UDM), a second message to create a group context information. The second message comprises the group communication session identifier and an identifier of the SMF associated with the group communication session identifier.

Abstract: A session management function (SMF) comprises one or more processors and memory storing instructions. When executed by the one or more processors, the instructions cause the SMF to send, to a policy control function (PCF), a policy request message. The policy request message comprises a non-public network (NPN) identifier of an NPN through which a wireless device accesses a public land mobile network (PLMN) and a PLMN identifier of the PLMN. When executed by the one or more processors, the instructions cause the SMF to receive, from the PCF, a policy response message comprising a charging control policy.

Abstract: An access and mobility management function receives, from a session management function, a request to set up a communication with a wireless device for transmitting downlink data. The access and mobility management function sends, based on the request, to the base station, a first paging message for a closed access group (CAG) wireless device that is allowed to access CAG cells. The first paging message indicates transitioning the CAG wireless device from an idle state to a connected state. The first paging message comprises a parameter indicating whether the wireless device is allowed to access non-CAG cells.

Abstract: A wireless device receives an identifier of a communication service provider. The wireless device determines to establish a PDU session for a network slice associated with a service of the communication service provider. The wireless device sends to a session management function a first message requesting establishment of the PDU session, the first message comprises a single network slice selection assistance information of the network slice and an identifier of the communication service provider. The wireless device receives from the SMF a second message accepting the establishment of the PDU session.

Abstract: A second base station receives, from a first base station, a radio access network (RAN) paging message for a wireless device. The RAN paging message comprises a parameter indicating whether the wireless device is allowed to access a non-closed access group (CAG) cell. The second base station sends a second paging message via a cell determined based on the cell being the non-CAG cell and the parameter indicating that the wireless device is allowed to access a non-CAG cell.

Abstract: A first network node receives, from a second network node, at least one first message indicating a status of the second network node. The first network node determines, based on the status, to transfer a plurality of sessions for a plurality of wireless devices from the second network node to a third network node. The first network node sends, to the third network node, a second message indicating an establishment request of the plurality of sessions for the plurality of wireless devices. The second message comprises session identifiers of the plurality of sessions.

Abstract: A wireless device receives configuration parameters from a base station. The configuration parameters are for a first session and a second session. The second session is for a packet duplication of the first session. The wireless device receives an activation indication of the packet duplication. Based on the activation indication of the packet duplication, the wireless device sends packets of the first session to a user plane function and a duplication of the packets to the user plane function via the second session.

Abstract: A session management function (SMF) comprises one or more processors and memory. The memory stores instructions that, when executed by the one or more processors, cause the SMF to receive, from a network exposure function (NEF), a message comprising downlink data from an application server and for transmission to a wireless device, and a release assistance indicator (RAI), the RAI indicating, transmission of uplink data by the wireless device is expected subsequent to transmission of the downlink data and a release of a connection associated with the wireless device after the transmission of the uplink data, receive an indication that the uplink data is transmitted, and send, to an access and mobility management function (AMF) based on receiving of the indication, a release message indicating release of a non-access stratum connection associated with the wireless device, the release message comprising the RAI.

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: A first base station receives a first request to notify a change of a closed access group (CAG) area of a wireless device. The first base station determines the change of the CAG area of the wireless device, and sends, to an access and mobility management function (AMF) and based on the determining, a location report message indicating the change of the CAG area of the wireless device.

Abstract: A wireless device in an RRC connected state receives a radio resource control (RRC) message from a base station. The wireless device transitions from the RRC connected state to an RRC inactive station in response to the RRC message. The RRC message indicates an active time period in which the wireless device is reachable by paging. The wireless device monitors to receive a paging message during the active time period after the transitioning. The wireless device activates a mobile initiated communication only (MICO) mode in response to an expiration of the active time period. The wireless stops monitoring for the paging message in response to the expiration of the active time period.

Abstract: A wireless cellular network system comprising MME configured to send a first create session request to SGW-C, the SGW-C configured to select SGW-U and transmit a first resource request to the selected SGW-U, and the SGW-U configured to, upon a receipt of the first resource request, allocate an IP address and TEIDs of the SGW-U, and transmit a resource message including the IP address and the TEIDs of the SGW-U to SGW-C. A method of SGW-C in a wireless communication system, the method comprising receiving, from MME, a first create session request, selecting SGW-U among a plurality of SGW-Us, wherein the selection is based on a location of a terminal, transmitting a first resource request to the selected SGW-U, receiving, from the selected SGW-U, a resource message including an IP address and TEID of the SGW-U, the IP address and TEIDs being allocated by the selected SGW-U.

Abstract: A base station receives, from an access and mobility management function (AMF), a first paging message for a wireless device. The first paging message comprises a parameter indicating whether the wireless device is allowed to access a non-closed access group (CAG) cell. The base station sends, via a cell, a second paging message based on the first paging message, wherein the sending is based on the parameter.

Abstract: A session management function (SMF) receives, from an access and mobility management function (AMF), a request for a time sensitive network (TSN) bridge. The SMF sends, to a user plane function (UPF) that supports TSN functionality, a message comprising configuration parameters of the TSN bridge. The configuration parameters comprise an identifier of the TSN bridge. The configuration parameters comprise an identifier of a port associated with TSN packet transmission.

Abstract: A session management function (SMF) receives, from a wireless device, time sensitive networking (TSN) bridge parameter comprising port information of a TSN bridge. The SMF sends, to a policy and charging function (PCF), a request for policy information, the request comprising the TSN bridge parameter. The SMF receives, from the PCF, a response to the request, the response comprising policy information for the wireless device.

Abstract: A session management function sends, to a policy control function, a policy request message. The policy request message comprises a non-public network identifier of a non-public network through which a wireless device accesses a public land mobile network. The policy request message comprises an identifier of the public land mobile network. The session management function receives, from the policy control function, a policy response message comprising a charging control policy.

Abstract: A method of an access and mobility function (AMF) for state management in a wireless communication system is provided. The method comprises determining a state of at least one state machine, receiving, from a target access network (AN), an N2 path switch request message based on the state of the at least one state machine, transmitting, to a session management function (SMF), an N11 message, and transmitting, to the target AN, an N2 path switch request acknowledgement (Ack) message when receiving an N11 Ack message, from the SMF, corresponding to the N11 message, wherein the target AN transmits a release resource message to a source AN when the target AN receives the N2 path switch request Ack message.

Abstract: A SMF receives from a first UPF, first message(s) indicating a status of the first UPF. The SMF determines, based on the status, to transfer sessions for a group of wireless devices from the first UPF to a second UPF. The SMF sends to the second UPF, a second message indicating an establishment request of sessions for the group of wireless devices. The second message comprises session identifiers of the sessions. The SMF receives from the second UPF, a third message indicating a result of the establishment request. The SMF sends to the first UPF, based on the result, a fourth message indicating release of session(s) of the sessions. The fourth message comprises session identifier(s) of the session(s).