A unidirectional service implementation method and an apparatus for transmitting media content collected by a terminal in a wireless communication system are provided. The unidirectional service implementation method includes registering with a server by transmitting a registration message, transmitting a first unidirectional service request message including information requesting a first unidirectional service, and establishing a first session based on the first unidirectional service request message.

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.

Some embodiments include systems and methods for establishing incident communications networks. The system can include an incident controller, a communications resource database that stores communications resources information, and a marshalling rules module that stores a set of marshalling rules. The incident controller can use a marshalling rule to identify and select the communications resources to be marshaled into the incident communications network based on an incident trigger. Upon receipt of an incident trigger, the incident controller is configured to establish the incident communications network by obtaining a marshalling rule based on the incident trigger. The incident controller marshals communications resources based on the marshalling rule and the communications resources determined to be available. Information sources can either provide an incident trigger (e.g., a hurricane warning) or provide data to be analyzed to determine an incident trigger. In some embodiments, an incident communications network includes one or more mobile interoperability workstation.

Some embodiments include systems and methods for establishing incident communications networks. The system can include an incident controller, a communications resource database that stores communications resources information, and a marshalling rules module that stores a set of marshalling rules. The incident controller can use a marshalling rule to identify and select the communications resources to be marshaled into the incident communications network based on an incident trigger. Upon receipt of an incident trigger, the incident controller is configured to establish the incident communications network by obtaining a marshalling rule based on the incident trigger. The incident controller marshals communications resources based on the marshalling rule and the communications resources determined to be available. Information sources can either provide an incident trigger (e.g., a hurricane warning) or provide data to be analyzed to determine an incident trigger. In some embodiments, an incident communications network includes one or more mobile interoperability workstation.

A communication method implemented on a 3rd Generation Partnership Project (3GPP) communication network includes providing an attachment between a group member of a communication group and a group application server, detecting a detachment between the group member and the group application server, and reestablishing the attachment by the 3GPP communication network. A Mobility Management Entity (MME) may provide the attachment. A Group Communication Service Enabler Application Server (GCSE AS) or a Multipoint Service (MuSe) functionality may detect the detachment. The attachment may be reestablished according to the MuSe functionality. A group communication bearer may have a first priority level for allocating resources to the group communication bearer, and a second priority level for allocating resources to the non-group communication bearer. The second priority level may be different from the first priority level. Different Quality Control Indexes (QCIs) may be provided to the group communication bearer and the non-group communication bearer.

Method and device for responding to an audio inquiry. The electronic computing device monitors audio communications transmitted between communication devices that are members of a talk group on a talk group channel. The electronic computing device detects an audio inquiry from a first communication device and generates an audio content response to be provided in response to the audio inquiry. The electronic computing device determines based on one or both of the audio inquiry and the audio content response, and as a function of the context information, that the audio content response is to be individually provided to the first communication device. The electronic computing device then establishes a private call with the first communication device and provides the audio content response to the first communication device via the private call.

A process and device for responding to a query includes receiving, at an electronic computing device, a query for providing a response at a first communication device. The process further includes determining that the response to the query is to be provided as a group response to communication devices in the first communication group. When one or more of the communication devices do not have permission to receive the group response, the electronic computing device causes modification of the group response to generate a second response and provides the second response to at least one of the communication devices in the first communication group. Alternatively, the electronic computing device alters an output action and provides the group response to at least one of the communication devices in the first communication group in accordance with the altered output action.

An embodiment method includes initiating, by one or more servers of a push-to-talk (PTT) platform, a PTT call session in response to a PTT call session initiation request from a first client device, receiving, by the one or more servers, a first estimated modulation and coding scheme (MCS) from the first client device, and receiving, by the one or more servers, a first transmission in accordance with an initial media encoding scheme (MES) from the first client device during an initial volley. The method further includes transmitting, by the one or more servers, instructions to the first client device to use a first MES different than the initial MES for a second transmission during a subsequent volley.

A method and a communications system for speech communication includes a plurality of workstations and a plurality of radio transmission devices and radio receiving devices. There are control units in the signal path between the workstations and the radio transmission devices and the radio receiving devices. The control units select the speech signals of one of the workstations according to predetermined or predeterminable criteria when there is a simultaneous plurality of operating signals of a plurality of workstations, or overlap the speech signals of a plurality of workstations according to predefined criteria, and transmit the speech signal thus obtained, chosen or overlapped for sending on the radio transmission device. Further, the control units transmit a receiving signal to the workstations connected thereto when the speech signals transmitted from the radio receiving unit are present, and transfer the speech signals to said workstations.

A method of displaying user information of a group including a plurality of terminals, the plurality of terminals including a first terminal manager a floor and a second terminal, the method including transmitting a floor grant message from the first terminal to the plurality of terminals, wherein the floor grant message indicates the second terminal as a transfer target of the floor; acquiring floor candidate information of the second terminal by using a floor request queue; receiving a real-time transport protocol media packet within a predetermined time; determining whether the RTP media packet is from the second terminal; and displaying second terminal user information using the floor candidate information based on a result of the determining.