Patent ID: 11937132
Assignee: APPLE INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for managing a fast return of a user equipment (UE) to one or more 5G systems (5GS) after handover to an Evolved Packet System (EPS) from the one or more 5GS, the method comprising:
generating, by a base station (BS), a handover request including a handover reason of no presence of quality of service (QoS) flow for a voice signal to the UE;
receiving, by the BS, a handover command generated by an access and mobility management function (AMF) to transfer the UE from the one or more 5GS to the EPS based on the handover request;
transmitting, by the BS, the handover command to the UE for the UE to establish a connection with the EPS; and
after a flow of the voice signal has terminated, re-establishing a connection, by the BS, with the UE to reconnect the UE to the one or more 5GS, wherein the connection with the UE is re-established based on a target ID of the BS.