Abstract: If a paging or notification message is received by a user equipment (UE) when a UE-initiated 5GMM specific procedure or service request procedure is ongoing, a UE may buffer the paging or notification message. To buffer the paging or notification message, the UE may remember the pending mobile terminated transaction and re-attempt the registration or request procedure with the access category 0 (=MT_acc), if the ongoing UE-initiated 5GMM specific procedure or service request procedure fails due to access barring. If a 5GMM specific procedure or service request procedure is received by the network when a MT transaction is ongoing (i.e. a paging message with the access type set to 3GPP access or notification message via non-3GPP access with the access type indicating 3GPP access) the network may complete the incoming MT transaction and may remember the pending mobile terminated transaction and continue it once the MO transaction is completed.

Abstract: This application regards optimization of non-access stratum signaling between a wireless device and a cellular wireless network to reduce network signaling load, conserve local access radio resources, and enhance the user experience of the wireless device. The wireless device proactively releases a packet data network (PDN) connection locally at the wireless device and marks a corresponding radio bearer inactive in a tracking area update request sent to the cellular wireless network to shorten time to complete the PDN connection, reducing network signaling load and freeing up access network resources. The wireless device also proactively releases a NAS signaling connection locally without waiting for a cellular wireless network disconnection when the NAS signaling connection is no longer required by the active subscriber identity module (SIM) of the wireless device, thereby allowing resources to be reallocated if needed to another SIM of the wireless device.

Abstract: A wireless device may transmit, using a first SIM associated with a first radio, a first attach request to a network node and transmit, using a second SIM associated with a second radio, a second attach request to the network node. Additionally, the wireless device may receive, operating in a multiple-subscriber identity module (MSIM) mode, an attach reject message including an attach reject cause code from the network node. The wireless device may transition, based at least in part on reception of the attach reject message, the second SIM to a limited service camped state, disable one of the first radio or second radio, transition to a single-SIM mode, and communicate with the network node via the first SIM.

Abstract: A method performed by a user equipment that is in communication with a network, includes receiving, a CAG information list from the network, the CAG information list including one or more CAG IDs and an association between each of the one or more CAG IDs and one or more NPN PLMN IDs. The method includes receiving, from the network, a network name list including one or more network names and the one or more CAG IDs and an association between each of the one or more network names and the one or more CAG IDs in the CAG information list, selecting a CAG cell as a serving cell based at least on the CAG information list or the network name list, and sending to a SIM of the UE, CAG data based on the CAG information list and the network name list.

Abstract: If a paging or notification message is received by a user equipment (UE) when a UE-initiated 5GMM specific procedure or service request procedure is ongoing, a UE may buffer the paging or notification message. To buffer the paging or notification message, the UE may remember the pending mobile terminated transaction and re-attempt the registration or request procedure with the access category 0 (=MT_acc), if the ongoing UE-initiated 5GMM specific procedure or service request procedure fails due to access barring. If a 5GMM specific procedure or service request procedure is received by the network when a MT transaction is ongoing (i.e. a paging message with the access type set to 3GPP access or notification message via non-3GPP access with the access type indicating 3GPP access) the network may complete the incoming MT transaction and may remember the pending mobile terminated transaction and continue it once the MO transaction is completed.