A method includes receiving, by a mobility management network element in a first network, first information from an access network device in the first network, where the first information indicates a handover of a terminal device from the first network to a second network, and sending, by the mobility management network element in the first network, second information to a mobility management network element in a third network based on the first information, where the second information instructs the mobility management network element in the third network to send a handover request to a mobile switching network element in the second network, and the handover request requests to hand over a voice service of the terminal device to the second network.

A method includes receiving, by a mobility management network element in a first network, first information from an access network device in the first network, where the first information indicates a handover of a terminal device from the first network to a second network, and sending, by the mobility management network element in the first network, second information to a mobility management network element in a third network based on the first information, where the second information instructs the mobility management network element in the third network to send a handover request to a mobile switching network element in the second network, and the handover request requests to hand over a voice service of the terminal device to the second network.

A wireless device sends a registration request message to an access and mobility management function (AMF) of a network. The wireless device receives, from the AMF, a registration accept message comprising an access traffic steering, switching, and splitting (ATSSS) capability indication of the network.

A wireless device sends a registration request message to an access and mobility management function (AMF) of a network. The wireless device receives, from the AMF, a registration accept message comprising an access traffic steering, switching, and splitting (ATSSS) capability indication of the network.

Certain aspects of the present disclosure provide techniques for group semi-persistent scheduling (SPS) for path diversity. A method that may be performed by a node includes configuring one or more groups of user equipments (UEs) with one or more SPS resources. The node sends a downlink control information (DCI) to activate one of the SPS resources for one of the groups of UEs and transmits data to the group of UEs using the activated SPS resource. A first UE may receive data from the node using the activated SPS resource and retransmit the data to the second UE. The first helping UE and the second targeted UE may be identified based on the higher layer configuration with the SPS resources, based on information in the DCI, and/or based on information sent with the data.

Certain aspects of the present disclosure provide techniques for group semi-persistent scheduling (SPS) for path diversity. A method that may be performed by a node includes configuring one or more groups of user equipments (UEs) with one or more SPS resources. The node sends a downlink control information (DCI) to activate one of the SPS resources for one of the groups of UEs and transmits data to the group of UEs using the activated SPS resource. A first UE may receive data from the node using the activated SPS resource and retransmit the data to the second UE. The first helping UE and the second targeted UE may be identified based on the higher layer configuration with the SPS resources, based on information in the DCI, and/or based on information sent with the data.

The present disclosure relates to a communication scheme and system for converging a 5.sup.th generation (5G) communication system for supporting a data rate higher than that of a 4.sup.th generation (4G) system with an internet of things (IoT) technology. The present disclosure is applicable to intelligent services (e.g., smart homes, smart buildings, smart cities, smart cars, connected cars, health care, digital education, retails, and security and safety-related services) based on the 5G communication technology and the IoT-related technology. The present disclosure provides a method performed by an access and mobility management function (AMF) entity of a visited public land mobile network (VPLMN) in a communication system.

The present disclosure relates to a communication method and system for converging a 5.sup.th-Generation (5G) communication system for supporting higher data rates beyond a 4.sup.th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.

The present disclosure relates to a communication method and system for converging a 5.sup.th-Generation (5G) communication system for supporting higher data rates beyond a 4.sup.th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.

A communication method and a communication apparatus are provided, which relate to the field of communication technologies. The communication apparatus includes a communication protocol module and a QUIC module. The communication protocol module is configured to send a first request to establish a first PDU session for a first data network, receive a first response indicating that the first PDU session is successfully established, and after receiving the first response, send, to the QUIC module, a first notification including a first IP address. The QUIC module is configured to, after receiving the first notification, send, to an application server of the first data network, a second request to establish a first QUIC connection, and receive a second response that indicates that the first QUIC connection is successfully established. An IP address on a terminal device side of the first QUIC connection is the first IP address.