A wireless communication device comprising a communication unit, a storage, an operation unit, a communication quality measuring unit, and a controller that controls the communication unit and the storage, wherein the controller further controls the storage to store, when the operation unit detects a transmission starting operation during every channel frequency is used by other wireless communication devices, the voice data until the operation unit detects a transmission stopping operation;

controls the communication unit to transmit, when every channel frequency is not used and the bit error rate is smaller than a first threshold, all pieces of voice data that have not been transmitted, and to transmit, when every channel frequency is not used and the bit error rate is between the first threshold and a second threshold, a piece of divided data having a predetermined length from a head of the voice data which has not been transmitted.

A method for sharing a reason cause for a mission critical communication (MCX) communication over pre-established session in an MCC network is provided. The method includes transmitting, to the server, a call initiation request to initiate a call, wherein the call initiation request includes first information on a session type and second information on a resource list, receiving, from the server, a mission critical pre-established session control (MCPC) connect message including a security message, determining whether an authentication for the security message is successful, and transmitting, to the server, a first MCPC acknowledgement message including a reason cause field to inform a reason for terminating the call in response to determining that the authentication for the security message is not successful.

The disclosed technology is generally directed towards, for interworking function interworking group call services, configuring each of the interworking groups with a separate group home server, with the servers coupled to one another via an interworking function. The interworking function receives a floor taken message from one server, and, in response, obtains a floor grant from the other server, which facilitates communication from a device to which the floor was granted to other devices, including devices associated with the other server. If the interworking function receives colliding floor taken messages from both servers, the interworking function performs mediation to determine which server/user has a higher priority level. The interworking function acknowledges the floor taken message to the higher priority server, and sends a floor request (with high priority) message to the other server, which triggers a floor revoke message to a device on the lower priority side.

Embodiments of an audio distribution module and system provide a compact and rugged audio switching device including a radio control unit in communication with an operator control panel. In various embodiments, an audio switching fabric is included with audio relays for directing the transmission and receipt of audio content between a headset in communication with the operator control panel and one or more radios in communication with the radio control unit, facilitating transmission and receipt of audio communications between the radio(s) and the headset.

A communication method between road users, which can each connect to a server via at least one communication interface. The following steps carried out by the server for establishing communication: establishing local and thematic information for determining communication participants; determining a group of communication participants based on local and thematic information, with a local area being defined for the local restriction of the communication participants and with at least one technological aspect and/or one interest-based aspect being taken as a basis for the thematic restriction on the part of the server; and granting permission for data communication by the road users based on the server prioritizing the data transmitted by the road users to the server once the group has been determined. The local and thematic information determined from the average of the spatial coordinates of the road users and respective average speed and average direction of the road users.

A communication method between road users, which can each connect to a server via at least one communication interface. The following steps carried out by the server for establishing communication: establishing local and thematic information for determining communication participants; determining a group of communication participants based on local and thematic information, with a local area being defined for the local restriction of the communication participants and with at least one technological aspect and/or one interest-based aspect being taken as a basis for the thematic restriction on the part of the server; and granting permission for data communication by the road users based on the server prioritizing the data transmitted by the road users to the server once the group has been determined. The local and thematic information determined from the average of the spatial coordinates of the road users and respective average speed and average direction of the road users.

A radio device includes a storage unit, a group call control unit, and a cipher key generation unit. The storage unit is configured to store therein a plurality of primary cipher keys, a plurality of pieces of device information, and a plurality of pieces of group information. The group call control unit is configured to perform a group call with radio devices belonging to a first group using a primary cipher key. The cipher key generation unit is configured to generate a secondary cipher key that is different from the primary cipher key when one or more radio devices belonging to the first group are selected during the group call. The group call control unit performs a temporary group call with the selected radio devices by switching the primary cipher key to the secondary cipher key.

Embodiments of the present invention disclose an interaction method and apparatus, and an electronic device. In a specific embodiment, the method comprises: displaying a stream pushing acknowledgement control; and sending stream pushing acknowledgement information to a server in response to detection of a trigger operation for the stream pushing acknowledgement control, wherein the server sends, in response to reception of the stream pushing acknowledgement information, a live stream generated according to a multimedia conference stream to a target stream pushing address specified by a participant. Hence, a new interaction mode can be provided.

Embodiments of the present application describe techniques of facilitating directing operations. The techniques comprise obtaining guest information of a target studio, where the guest information includes a room identification number of a guest room, the guest room associated with producing content scenes; generating a directing configuration file based on the guest information of the target studio; and sending the directing configuration file to a director terminal associated with content directing, so that the director terminal performs a directing operation based on the directing configuration file.

An apparatus comprising means for performing: receiving, from a first client, a call request comprising address information for calling at least one second client, the address information comprising a Functional Alias, wherein the Functional Alias is activated by the at least one second client; in response to receiving the call request at the apparatus, sending, to a server, a request to re-solve the Functional Alias to at least one Mission Critical Push to Talk Identifier of the at least one second client that has activated the Functional Alias; receiving, at the apparatus from the server, the at least one Mission Critical Push to Talk Identifier of the at least one second client; sending, from the apparatus, a call request to the at least one second client using the at least one Mission Critical Push to Talk Identifier of the at least one second client.