Nec Corporation

Hotaka Sugano

Satoshi Hasegawa

Toru Yamada

Masahiro Serizawa

Akira Kamei

Masashi Shimoma

Kyoji Hirata

Yumiko Okuyama

The present invention addresses the problems of reduction of an operation guaranteed period and an operation failure of an entire system caused by the reduction of the operation guaranteed period or an operation stop of a specific device. The present invention includes a control unit that controls transmission of a triggering message to a terminal based on at least one of an identifier included in the triggering message for triggering the terminal and used to identify the terminal, and an identifier for identifying a group to which the terminal belongs.

Communication system, communication control apparatus, communication control method, and communication program

The present invention addresses the issue of responding to a state in which operation has stopped as a result of high frequency triggering of a specified application either intentionally or as a result of a malfunction, etc. The present invention relates to communication system including: a monitoring unit that monitors the occurrence state of triggering messages on the basis of port number information identifying port numbers included in triggering messages that trigger a terminal; and a control unit that controls transmission of the triggering messages to the terminal, on the basis of the occurrence state.

Communication system, communication control apparatus, communication control method, and program

A system of this invention is directed to a communication processing system that copes with a failure while avoiding network congestion or overload by reducing signaling even if a device cannot receive a group message. This communication processing system forms VPLMN (Visited Public Land Mobile Network), and includes a group messaging request acquirer that acquires, from an application, a group messaging request to be distributed to a plurality of devices, a group messaging request distributer that distributes the group messaging request to the plurality of devices, and a redistribution instructor that instructs, when receiving no response to the group messaging request from any one device in the plurality of devices within a predetermined time, the group messaging request distributer to redistribute the group messaging request to a service area including the any one device based on error information of the service area.

Communication processing system and group message processing method

A wireless communication system that enables a wireless terminal to perform communication using a plurality of component carriers having different frequencies. The wireless communication system monitors a communication state of each of the component carriers allocated to the wireless terminal; distributes, to the component carriers, data to be transmitted, based on the communication state of each of the component carriers; starts a reception operation at a predetermined timing in a non-reception period of a second cycle during a discontinuous reception operation at the second cycle in some of the component carriers allocated to the wireless terminal, and performs the reception operation a predetermined number of times, the second cycle being longer than a first cycle.

Wireless communication system, wireless communication network, wireless terminal, and wireless communication method

A system of this invention is directed to a communication processing system that suppresses an increase in number of control messages even if devices cannot receive a group message. The communication processing system includes a holder that holds identifiers of a plurality of devices included in a device group as a target of a group messaging requested from an application, an unreached-device list acquirer that acquires an unreached-device list created by excluding, identifiers of devices which the group message has reached from the identifiers held in the holder based on responses to delivery of the group message, and a message deliverer that delivers a message based on the group messaging to devices having identifiers included in the unreached-device list.

Communication processing system, group message processing method, communication processing apparatus, and control method and control program of communication processing apparatus

The present invention has been made in view of the aforementioned problem and aims to provide a technique for reducing consumption of transmission power of an MTC device. The present invention relates to a communication terminal including measurement means for measuring a measurement target, reception means for receiving a certain condition regarding transmission from an application server, and determination means for determining, when the resulting measurement value satisfies the condition, that the measurement value should not be transmitted to the application server.

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Tokyo, Japan

Hotaka Sugano