Multicast/broadcast support in dual-connectivity

A terminal device comprising:

• at least one processor;
• and
• at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the terminal device to:
• receive from a first network device a command to report interested multicast and broadcast services (MBSs);
• send information of one or more interested MBS services to the first network device;
• receive from the first network device configuration of at least one of the one or more interested MBS services and configuration of a second network device providing the at least one of the one or more interested MBS services;
• set up or modify connection with the second network device based on the configuration of the second network device so that the terminal device is simultaneously connected to both the first network device and the second network device;
• and
• receive the at least one of the one or more interested MBS services from the second network device based on the configuration of the at least one of the one or more interested MBS services.

A network device comprising:

• at least one processor;
• and
• at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the network device to:
• send a command to report interested multicast and broadcast services (MBSs) to a terminal device;
• receive from the terminal device information of one or more interested MBS services, the network device operating as a master node (MN) for the terminal device;
• send a secondary node (SN) addition or modification request comprising the information of one or more interested MBS services to an additional network device, the additional network device operating or being selected to operate as an SN for the terminal device;
• receive from the additional network device acknowledgement to the SN addition or modification request, the acknowledgement to the SN addition or modification request comprising configuration of at least one of the one or more interested MBS services and configuration of the additional network device;
• and
• send the configuration of the at least one of the one or more interested MBS services and the configuration of the additional network device to the terminal device.

A network device comprising:

• at least one processor;
• and
• at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the network device to:
• receive a secondary node (SN) addition or modification request from an additional network device, the SN addition or modification request comprising information of one or more multicast and broadcast services (MBSs) a terminal device is interested in;
• and
• send acknowledgement to the SN addition or modification request to the additional network device, the acknowledgement to the SN addition or modification request comprising configuration of at least one of the one or more interested MBS services and configuration of the network device.