The present disclosure relates to trunking communication systems, servers, access networks, and trunking communication methods. One example system includes a trunking management server and an access network. The trunking management server includes a trunking call service control module and a connected trunking call media gateway module. The trunking call media gateway module is configured to receive service data sent through the access network by a trunking UE, and forward the service data according to a communication type of the service data for implementing user plane communication of the trunking UE. The trunking call service control module is configured to receive a communication request sent through the access network by a trunking UE, and perform call control and bearer management on the trunking UE according to a communication type of the communication request for implementing control plane communication of the trunking UE.

The present application discloses a discovery method and device, and relates to the field of wireless communications technologies, to resolve a problem that existing two communication parties cannot accurately discover each other, and then it cannot be ensured that the two communication parties perform service communication in a Prose manner. The method provided in the present application includes: sending a discovery message, where the discovery message includes application layer identifier information of a discovery target, and the discovery target is at least one target user or at least one communications group of a first user that uses the first MCPTT UE; and receiving a response message sent by second MCPTT UE, where the response message includes a layer 2 identifier of the second MCPTT UE and an application layer identifier of a user that uses the second MCPTT UE.

A device, system and method for failure management in push to talk for the internet of things is provided. A Push-To-Talk (PTT) server receives, from a device, a control command for an Internet-of-Things (IoT) device, the IoT device and the device mapped to a talkgroup identifier identifying a talkgroup used by the device to send the control command; outputting, via the PTT server, to the IoT device, the control command. The PTT server determines that the control command has failed. The PTT server transmits, to the device, an indication that the control command has failed, the indication transmitted over the talkgroup identified by the talkgroup identifier.

A smart mic may be combined with an LMR radio terminal for user communication. An outgoing user communication by either the LMR terminal or the smart mic causes a corresponding incoming communication received respectively at the smart mic or the LMR terminal to be suppressed in various ways. This prevents audio interference for the user.

A device, system and method for failure management in push to talk for the internet of things is provided. A Push-To-Talk (PTT) server receives, from a device, a control command for an Internet-of-Things (IoT) device, the IoT device and the device mapped to a talkgroup identifier identifying a talkgroup used by the device to send the control command; outputting, via the PTT server, to the IoT device, the control command. The PTT server determines that the control command has failed. The PTT server transmits, to the device, an indication that the control command has failed, the indication transmitted over the talkgroup identified by the talkgroup identifier.

Some example communication systems include a fixed network equipment (FNE) operable to receive a talk group call from a first radio. The FNE is operable to transmit the talk group call to a second radio. The FNE is operable to receive a request for a high priority call. The communication system includes a gateway operable to transmit an interrupt signaling message through a broadband channel to the first radio. The interrupt signaling message includes instructions to de-key from the talk group call. Some example communication systems include a first radio operable to communicate with a second radio in a talk group call. The communication system includes a gateway operable to receive a request for a high priority call. The gateway is operable to transmit an interrupt signaling message through a broadband channel to the first radio. The interrupt signaling message includes instructions to make a high priority call decision.

Some example communication systems include a fixed network equipment (FNE) operable to receive a talk group call from a first radio. The FNE is operable to transmit the talk group call to a second radio. The FNE is operable to receive a request for a high priority call. The communication system includes a gateway operable to transmit an interrupt signaling message through a broadband channel to the first radio. The interrupt signaling message includes instructions to de-key from the talk group call. Some example communication systems include a first radio operable to communicate with a second radio in a talk group call. The communication system includes a gateway operable to receive a request for a high priority call. The gateway is operable to transmit an interrupt signaling message through a broadband channel to the first radio. The interrupt signaling message includes instructions to make a high priority call decision.

A wireless communication system comprises a first wireless communication device for a first team member, and a second wireless communication device for a second team member. The first wireless communication device comprises a microphone and a transmitter for transmitting an oral message via a first wireless communication protocol. The second wireless communication device comprises a main transceiver, and a wearable audio device. The first wireless communication device may include a push to talk hard trigger assembly. The wearable audio device may comprise an epaulet speaker. The system may include a support for mounting the main transceiver onto a shoulder pad of the second team member.

A wireless communication system comprises a first wireless communication device for a first team member, and a second wireless communication device for a second team member. The first wireless communication device comprises a microphone and a transmitter for transmitting an oral message via a first wireless communication protocol. The second wireless communication device comprises a main transceiver, and a wearable audio device. The first wireless communication device may include a push to talk hard trigger assembly. The wearable audio device may comprise an epaulet speaker. The system may include a support for mounting the main transceiver onto a shoulder pad of the second team member.

A method for regrouping multiple groups and a device are provided. The method includes: receiving, by a first group management functional entity, a group regrouping creation message sent by first UE, where the group regrouping creation message includes identifiers of N MCPTT groups, and the group regrouping creation message is used to request the first group management functional entity to create, according to the identifiers of the N MCPTT groups, a temporary group which is initiated by a first MCPTT user and into which the N MCPTT groups are regrouped; and the first MCPTT user belongs to at least one MCPTT group of the N MCPTT groups; and configuring information about the temporary group, where the information about the temporary group includes an identifier of the temporary group into which the N MCPTT groups are regrouped, and the identifiers of the N MCPTT groups.