Abstract: The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). A method disclosed herein includes receiving, by a group management server, a request from a group management client for creating at least one Vertical Application Layer (VAL) group. The method further includes creating, by the group management server, the at least one VAL group. The method further includes obtaining, by the group management server, external group identifier information for identifying a group of member User Equipments (UEs) of the at least one VAL group at a 3rd Generation Partnership Project (3GPP) core network. The method further includes sending, by the group management server, a creation response to the group management client, on obtaining the external group identifier information for the created at least one VAL group.

Abstract: A method for managing a Mission Critical Video (MCVideo) group call is provided. The method includes transmitting by at least one sender user equipment (UE) in the MCVideo group call, a MCVideo message to an MCVideo Server, receiving, by at least one receiver UE in the MCVideo group call, the MCVideo message from the MCVideo server, wherein at least one of a plurality of functional alias identification (ID) is encoded and included in the MCVideo message, and decoding, by the at least one receiver UE in the MCVideo group call, the at least one of the plurality of functional alias ID from the MCVideo message.

Abstract: A method for associating services in an electronic device is provided. The method includes sending, by a first electronic device, a first service with a first private association dialog (PAD) to a second electronic device, wherein the first PAD of the first service includes a first PAD identifier and sending, by the first electronic device, a second service with a second PAD to the second electronic device, wherein the second PAD of the second service includes a second PAD identifier that matches the first PAD identifier to associate the second service with the first service at the second electronic device.

Abstract: A method for associating services in an electronic device is provided. The method includes sending, by a first electronic device, a first service with a first private association dialog (PAD) to a second electronic device, wherein the first PAD of the first service includes a first PAD identifier and sending, by the first electronic device, a second service with a second PAD to the second electronic device, wherein the second PAD of the second service includes a second PAD identifier that matches the first PAD identifier to associate the second service with the first service at the second electronic device.