An electronic messaging device includes a receiver configured to receive a message at one of a first operational frequency and second operational frequency. The messaging device can added to a message distribution group comprising a plurality of existing messaging devices. A test communication can be sent through a coupling to test an operation of the messaging device and confirming the addition of the messaging device to the message distribution group without communicating with the existing messaging devices.

A first user device may be included in a user device group including the first user device and a second user device that share a same service identifier for a communication service. The method may include accepting user input at the first user device to activate an operation mode for the first user device. Responsive to accepting the user input to activate the operation mode at the first user device, the operation mode may be activated at the first user device. Responsive to accepting the user input to activate the operation mode at the first user device, a notification regarding activation of the operation mode may be transmitted to a control server that is remote from the first user device. Related user devices and control servers are also discussed.

A vehicle messaging method (600) and system (100) can include any number of data sources (101-103), an interface (104) that formats messages and addresses from the data sources, and a corresponding number of messaging servers (111-113) that receive targeted messages intended for a predetermined subset of subscribers associated with a vehicle identification number (VIN). Each messaging server can include a corresponding controller (121-123) programmed to assign (604) targeted messages to a predetermined channel and encode (606) the addresses of the targeted messages to the predetermined subset of subscribers using a VIN or portion thereof. The controller can be further programmed to transfer (608) the targeted messages and addresses to a satellite uplink (107) and satellite (110) via a messaging uplink interface (106) for retransmission and reception by a plurality of selective call receivers 109 addressable individually using a predetermined VIN or portion thereof.

An electronic messaging device includes a receiver configured to receive a message at one of a first operational frequency and second operational frequency. The messaging device can operate using a time synchronous protocol and can receive commands through over-the-internet-programming (OTIP) and over-the-air-programming (OTAP).

A first user device may be included in a user device group including the first user device and a second user device that share a same service identifier for a communication service. The method may include accepting user input at the first user device to activate an operation mode for the first user device. Responsive to accepting the user input to activate the operation mode at the first user device, the operation mode may be activated at the first user device. Responsive to accepting the user input to activate the operation mode at the first user device, a notification regarding activation of the operation mode may be transmitted to a control server that is remote from the first user device. Related user devices and control servers are also discussed.

A method and base station in a wireless communication system are provided. The method includes transmitting, to a terminal, system information including information associated with a sub-frame configuration of multimedia broadcast multicast service single frequency network (MBSFN) sub-frames, identifying whether the transmission mode of the terminal is a first transmission mode or a second transmission mode, transmitting, to the terminal, dedicated message including configuration information of the identified transmission mode of the terminal, transmitting, to the terminal, control information in a physical downlink control channel (PDCCH) and data in a physical downlink shared channel (PDSCH) in a first sub-frame of the MBSFN sub-frames, if the terminal is configured in the first transmission mode, and transmitting, to the terminal, the control information in the PDCCH and the data in the PDSCH in a second sub-frame of a non-MBSFN sub-frames, if the terminal is configured in the second transmission mode.

The present disclosure proposes a method capable of, when a user simultaneously selects several PTT channels even in an apparatus not supporting a display, identifying the several PTT channels using alarm sounds for the PTT channels to transmit voices and distinguishing through which PTT channel a received voice is received, and a PTT terminal supporting the same. The present disclosure provides a push-to-talk (PTT) communication method, comprising: a step of connecting multiple PTT channels for communications between terminals; a step of storing history information representing received time of voice data through the multiple PTT channels; a step of selecting a PTT channel on the basis of the history information with respect to the multiple PTT channels, if an input of a PTT button is sensed; and a step of transmitting voice data to the selected PTT channel.

According to implementations of the subject matter described herein, a new approach for receiving the CBS message is proposed. Generally speaking, in response to receiving a CBS message from a network device, a terminal device will determine an attribute of the CBS message. Then, the terminal device will determine a policy for receiving a further CBS message based on the determined attribute. That is, the policy is determined through a self-learning process performed on the received CBS message (s). In this way, the power consumption of the terminal device for receiving the CBS messages can be reduced. As a result, the battery life of the terminal device can be guaranteed.

A vehicle messaging method (600) and system (100) can include any number of data sources (101-103), an interface (104) that formats messages and addresses from the data sources, and a corresponding number of messaging servers (111-113) that receive targeted messages intended for a predetermined subset of subscribers associated with a vehicle identification number (VIN). Each messaging server can include a corresponding controller (121-123) programmed to assign (604) targeted messages to a predetermined channel and encode (606) the addresses of the targeted messages to the predetermined subset of subscribers using a VIN or portion thereof. The controller can be further programmed to transfer (608) the targeted messages and addresses to a satellite uplink (107) and satellite (110) via a messaging uplink interface (106) for retransmission and reception by a plurality of selective call receivers 109 addressable individually using a predetermined VIN or portion thereof.

A first user device may be included in a user device group including the first user device and a second user device that share a same service identifier for a communication service. The method may include accepting user input at the first user device to activate an operation mode for the first user device. Responsive to accepting the user input to activate the operation mode at the first user device, the operation mode may be activated at the first user device. Responsive to accepting the user input to activate the operation mode at the first user device, a notification regarding activation of the operation mode may be transmitted to a control server that is remote from the first user device. Related user devices and control servers are also discussed.