Apparatuses, methods, and systems are disclosed for indicating a packet data unit session as unavailable. One apparatus includes a processor that determines that at least one packet data unit session is unavailable. The apparatus includes a transmitter that transmits information indicating that the at least one packet data unit session is to be released.

Techniques for connectivity session between devices based on a connectivity trigger are described and may be implemented to enable a first device (e.g., a mobile device) to provide network connectivity for a second device. Generally, the described implementations enable multiple different connectivity triggers to be utilized to trigger a connectivity session between devices, such as for enabling network connectivity of a first device to be provided to a second device.

Techniques for connectivity session between devices based on a connectivity trigger are described and may be implemented to enable a first device (e.g., a mobile device) to provide network connectivity for a second device. Generally, the described implementations enable multiple different connectivity triggers to be utilized to trigger a connectivity session between devices, such as for enabling network connectivity of a first device to be provided to a second device.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may obtain a discontinuous reception (DRX) short cadence value that corresponds to a number of Hertz (Hz). The UE may sleep as part of a DRX cycle. The UE may wake up, starting at a subframe, based at least in part on the DRX short cadence value and a subframe identifier of the subframe. Numerous other aspects are described.

A user equipment (UE) includes a receiver configured to receive, during operation based on a first mode, a configuration message from a base station. The configuration message indicates sidelink resources associated with a sidelink data channel. The UE further includes a transmitter configured to transmit, based on detecting that one or more conditions associated with the configuration message are satisfied, and during operation based on a second mode, a sidelink message to a second UE via the sidelink data channel during an occasion associated with the sidelink resources.

A method of a service enabler architecture layer (SEAL) can include receiving a monitoring event subscription request for network connection status information at a network resource management server in the SEAL from a vertical application layer (VAL) server. The monitoring event subscription request can indicate a target VAL user equipment (UE), a type of the network connection status information, and a timeout period indicating an amount of time lapsed after the monitoring event subscription request was transmitted. The requested network connection status information is not transmitted after the timeout period. The network connection status information of the target VAL UE can be obtained from a wireless network system. A network connection status information response message can be transmitted from the network resource management server in the SEAL to the VAL server. The network connection status information response message can include the network connection status information of the target VAL UE.

A method of a service enabler architecture layer (SEAL) can include receiving a monitoring event subscription request for network connection status information at a network resource management server in the SEAL from a vertical application layer (VAL) server. The monitoring event subscription request can indicate a target VAL user equipment (UE), a type of the network connection status information, and a timeout period indicating an amount of time lapsed after the monitoring event subscription request was transmitted. The requested network connection status information is not transmitted after the timeout period. The network connection status information of the target VAL UE can be obtained from a wireless network system. A network connection status information response message can be transmitted from the network resource management server in the SEAL to the VAL server. The network connection status information response message can include the network connection status information of the target VAL UE.

Secondary cell management in wireless communications is described. A plurality of cells may be grouped into a plurality of groups that comprise a primary group comprising a primary cell with a primary control channel, and a secondary group comprising a plurality of secondary cells. The secondary group may comprise a first secondary cell with a secondary control channel. The wireless device may keep the first secondary cell active based on a secondary cell in the secondary group being active.

Secondary cell management in wireless communications is described. A plurality of cells may be grouped into a plurality of groups that comprise a primary group comprising a primary cell with a primary control channel, and a secondary group comprising a plurality of secondary cells. The secondary group may comprise a first secondary cell with a secondary control channel. The wireless device may keep the first secondary cell active based on a secondary cell in the secondary group being active.

This disclosure provides a User Equipment (UE), including: a transmitter configured to transmit at least one Protocol Data Unit (PDU) session identifier (ID), each of which indicates a PDU session that the UE needs to use in a Non Access Stratum (NAS) Service Request message to a Mobility Management Function (MMF) via an access network (AN) node when the UE has user data to send.