A method implemented by a client transmitting entity included in a 3GPP MCS (3rd Generation Partnership Program Mission Critical Services) standard network, the client transmitting entity being configured to transmit a plurality of contents intended for at least one client receiving entity included in the network, the client transmitting entity and the client receiving entity being affiliated with a same communication group, the method including generating, by the client transmitting entity, a group user key identifier, the group user key identifier being specific to the communication group and being used to encrypt the content, the generation being repeated each time a predetermined event takes place.

Efficient use of channel bandwidth response, response timing, along with the ability to acquire the most accurate and up to date response are provided for management of virtual assistant search queries within a communication system. Improved management is obtained using an artificial intelligence (AI) server controlling response activity to a query communication device by adjusting content of a verbose response to the query by varying the verbosity of the response based on channel availability. The channel availability is determined based on channel bandwidth and channel occupancy.

Efficient use of channel bandwidth response, response timing, along with the ability to acquire the most accurate and up to date response are provided for management of virtual assistant search queries within a communication system. Improved management is obtained using an artificial intelligence (AI) server controlling response activity to a query communication device by adjusting content of a verbose response to the query by varying the verbosity of the response based on channel availability. The channel availability is determined based on channel bandwidth and channel occupancy.

A system is presented that includes secure push-to-talk voice functionality. Using encryption, authentication, user filtering, and integration with new and existing LMR systems, a secure voice platform ensures malicious software, unauthorized access and brute force security attacks will not compromise the voice communications of the system. The VoIP system is engineered to ensure graceful system degradation in the event of maintenance activities, natural disasters and failure modes. The hardened VoIP system offers the functions a LMR trunking system while utilizing broadband connections. Private calls, group calls, Emergency Alarms with covert monitoring capability, scanning and priority scanning may be incorporated into the system. The system includes a VoIP-controller that serves as a trunking controller, manages available VoIP-based conference bridges, and assigns them as needed to the parties involved in each voice call. The system includes multiple fallback methods that may be prioritized based on pre-failure analytics.

A system is presented that includes secure push-to-talk voice functionality. Using encryption, authentication, user filtering, and integration with new and existing LMR systems, a secure voice platform ensures malicious software, unauthorized access and brute force security attacks will not compromise the voice communications of the system. The VoIP system is engineered to ensure graceful system degradation in the event of maintenance activities, natural disasters and failure modes. The hardened VoIP system offers the functions a LMR trunking system while utilizing broadband connections. Private calls, group calls, Emergency Alarms with covert monitoring capability, scanning and priority scanning may be incorporated into the system. The system includes a VoIP-controller that serves as a trunking controller, manages available VoIP-based conference bridges, and assigns them as needed to the parties involved in each voice call. The system includes multiple fallback methods that may be prioritized based on pre-failure analytics.

A server receives a call request for a mission critical, push to talk (MCPTT) call. In response to receiving the call request, the server accesses a mapping of an MCPTT identifier of a user equipment with an interworking identifier that is formed according to an address format implemented in Global System for Mobile communications (GSM) for Railways (GSM-R). The server then forwards the call request from the server based on the mapping. In some cases, the MCPTT identifier is a uniform resource identifier (URI) and the interworking identifier is represented in an e164 format.

A server receives a call request for a mission critical, push to talk (MCPTT) call. In response to receiving the call request, the server accesses a mapping of an MCPTT identifier of a user equipment with an interworking identifier that is formed according to an address format implemented in Global System for Mobile communications (GSM) for Railways (GSM-R). The server then forwards the call request from the server based on the mapping. In some cases, the MCPTT identifier is a uniform resource identifier (URI) and the interworking identifier is represented in an e164 format.

Method comprising: determining at least one terminal that should be kept in RRC connected state, wherein the determination is based on at least one of the following criteria: participation of the terminal in a communication session that is to be distributed via multicast or broadcast, a history of communication patterns of the terminal, and input of a human moderator; and informing a network function of the determined at least one terminal that the terminal should be kept in the RRC connected state.

The technologies described herein are generally directed to facilitating operation of system that can include a processor and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations. In embodiments, the operations can include receiving, from a source user equipment, a first request to communicate to a destination group of user equipment via a multi-cast connection. Further operations can include identifying respective service areas of ones of the destination group, comprising a service area of a destination user equipment of the destination group. In some embodiments, operations can include generating a second request to initiate the multi-cast connection, the second request comprising the destination group of user equipment with the respective service areas, wherein the respective service area of the destination user equipment is for selection, by second network equipment based on the service area, a gateway group of base station equipment.

Provided are methods and apparatuses for prioritizing Mission Critical Push to Talk Traffic during an emergency, related to wireless communication networks, and more particularly to mission critical services in Long Term Evolution (LTE) communication networks. A channel sensitive MCPTT prioritization scheduling method and system are provided to increase the download/upload. speeds for MCPTT users during the emergency situations. Also provided are methods and systems for prioritizing traffic for connected User Equipments (UEs) over idle UEs.