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 rule-based mission critical (MCX) communication by an MCS server is provided. The method includes: receiving, from an MCX client, an MCX service request which includes rule-set information for the MCX service request; determining at least one MCX participant required for the MCX service request based on the rule-set information for the MCX service request; and initiating a wireless communication between the determined MCX participant and the MCX client based on the rule-set information for the MCX service request.

Abstract: The disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). A method is provided. The method includes transmitting by at least one sender, respective MCData User Identifier (ID) to at least one receiver User Equipment (UE), receiving, by the at least one receiver UE, the MCData User ID of the at least one sender UE, and decoding, by the at least one receiver UE, the received sender MCData User ID to identify the at least one sender UE, wherein the sender MCData User ID is included in one of a signaling payload message content and a MCData notification message sent by the at least one sender UE to the at least one receiver UE.

Abstract: Embodiments herein provide a user equipment (UE) and a method for performing communication in a mission critical services (MCX) off-network. The method includes: sending an announcement message for a slot reservation for a complete scheduling assignment (SA) cycle; determining whether a second UE in the MCX Off-network is trying to reserve same slot and having a higher priority than priority of the first UE. Further, the method includes performing one of: backing off and sending a new announcement message for the slot reservation in response to determining that the second UE is trying to reserve a same slot and has the higher priority than the priority of the first UE, and reserving the same slot in response to determining that the second UE is trying to reserve the same slot and the second UE has a lower priority than the priority of the first UE.

Abstract: A method for initiating a private communication session by a user equipment (UE) includes: initiating, by the initiating UE, at least one private communication session with a terminating UE using a Session Initiation Protocol (SIP) INVITE message including an I_MESSAGE; and reusing, by the initiating UE, the I_MESSAGE for initiating at least one subsequent private communication session with the terminating UE.

Abstract: A method and system for providing mission critical service (MCX) in a wireless communication network are provided. The method includes receiving, by a network-bridge entity, a communication request from an electronic device in a non-MCX zone. The network-bridge entity interfaces communication between the non-MCX zone and an MCX zone in the wireless communication network. Further, the method includes performing, by the network-bridge entity, a registration of the electronic device with an MCX server present in the MCX zone. Further, the method includes establishing, by the network-bridge entity, an MCX with the MCX server. Further, the method includes transferring, by the network-bridge entity, an MCX functionality to the electronic device in the non-MCX zone.

Abstract: A method and system for providing mission critical service (MCX) in a wireless communication network are provided. The method includes receiving, by a network-bridge entity, a communication request from an electronic device in a non-MCX zone. The network-bridge entity interfaces communication between the non-MCX zone and an MCX zone in the wireless communication network. Further, the method includes performing, by the network-bridge entity, a registration of the electronic device with an MCX server present in the MCX zone. Further, the method includes establishing, by the network-bridge entity, an MCX with the MCX server. Further, the method includes transferring, by the network-bridge entity, an MCX functionality to the electronic device in the non-MCX zone.