A source access and mobility management function (AMF) sends, to a target AMF, a first message indicating: a handover of a wireless device; and a source session management function (SMF). A second message causing a release of at least one second session of the wireless device is received from the target AMF. A request for the release of the at least one second session is sent to the source SMF. An indication of completion of the release is received from the source SMF. An indication of the completion of the release is sent to the target AMF.

A source access and mobility management function (AMF) sends, to a target AMF, a first message indicating: a handover of a wireless device; and a source session management function (SMF). A second message causing a release of at least one second session of the wireless device is received from the target AMF. A request for the release of the at least one second session is sent to the source SMF. An indication of completion of the release is received from the source SMF. An indication of the completion of the release is sent to the target AMF.

A method of operating a source node of a wireless network for controlling handover of a device from the source node to a target node of the wireless network is provided. The method comprises selecting, by the source node, to handover the device from the source node to the target node at a future time on a basis of a predicted location of the device at the future time; transmitting, by the source node, a pre-configuration message to the device including a configuration for the handover of the device from the source node to the target node at the future time; and arranging, by the source node, for the device to receive a trigger instructing the device to handover from the source node to the target node at the future time.

Apparatus and methods are provided for RRM measurement in the NR network. In one novel aspect, the RRM measurement is configured with one measurement gap for SS block and CSI-RS. In one embodiment, an extended MGL (eMGL) is configured such that the SS block and CSI-RS is measurement within one measurement gap. In another embodiment, the shorter MGL (sMGL) that is shorter than the standard MGL is configured. In another novel aspect, the CSI-RS is allocated adjacent to the SS blocks such that one measurement gap is configured for both the SS block and CSI-RS measurement. In another novel aspect, the CSI-RS measurement is conditionally configured. In yet another novel aspect, the UE decodes the time index of the SS block conditionally.

Apparatus and methods are provided for RRM measurement in the NR network. In one novel aspect, the RRM measurement is configured with one measurement gap for SS block and CSI-RS. In one embodiment, an extended MGL (eMGL) is configured such that the SS block and CSI-RS is measurement within one measurement gap. In another embodiment, the shorter MGL (sMGL) that is shorter than the standard MGL is configured. In another novel aspect, the CSI-RS is allocated adjacent to the SS blocks such that one measurement gap is configured for both the SS block and CSI-RS measurement. In another novel aspect, the CSI-RS measurement is conditionally configured. In yet another novel aspect, the UE decodes the time index of the SS block conditionally.

A method performed by a User Equipment (UE) for handling a Conditional Handover (CHO) from a first cell to a second cell in a wireless communications network. The UE is served by a Master Node (MN), in the first cell and by a Secondary Node (SN) in a third cell. The UE receives a CHO configuration from the first network node acting as the MN. The CHO configuration includes an indication to release configurations of any one or more out of: Multi Radio Access Technology Dual Connectivity (MR-DC), and SN terminated bearers. Upon execution of the CHO according to the CHO configuration, the UE releases the MR-DC configuration and/or a configuration for SN terminated bearers.

In a LTE network user devices can access voice application service via Voice over LTE (VoLTE) and Voice over WiFi (VoWiFi). To detect faults in the data link associated with an evolved packet data gateway for providing access by the user device to the LTE network from a non-trusted network which will affect VoWiFi capability, a packet data gateway monitors the status of ePDG and if a fault is detected, the user device is notified that it should connect to voice services via VoLTE.

A source access and mobility management function (AMF) sends, to a target AMF, a first message indicating: a handover of a wireless device; and a source session management function (SMF). A second message causing a release of at least one second session of the wireless device is received from the target AMF. A request for the release of the at least one second session is sent to the source SMF. An indication of completion of the release is received from the source SMF. An indication of the completion of the release is sent to the target AMF.

A source access and mobility management function (AMF) sends, to a target AMF, a first message indicating: a handover of a wireless device; and a source session management function (SMF). A second message causing a release of at least one second session of the wireless device is received from the target AMF. A request for the release of the at least one second session is sent to the source SMF. An indication of completion of the release is received from the source SMF. An indication of the completion of the release is sent to the target AMF.

Systems and methods for dynamically managing the states (e.g., enabling/disabling) of telecommunication services/features are disclosed. To do so, the system associates parameters (e.g., timers) with the impacted services/features. For example, when a user experiences issues with voice calls, he/she calls the telecommunications service provider (carrier) to help resolve the issue. A customer care representative may ask the user to temporality turn off the VoNR service to help alleviate the issue. When the user turns off (or toggles off) the VoNR service on his/her mobile device, the system can start a configurable timer (parameter) for the VoNR service. In this manner, the system can replace the conventional toggle on/off feature with a time-based feature. The system monitors the timer's value and when the timers value reaches a target value (e.g., 24 hours, 1 week, etc.), the system alerts the user that the VoNR service will be turned on (or toggled on).