Abstract: A LPWA communication apparatus 100 comprises a radio communicator 131 configured to perform a radio communication with a radio communication network 300 by an LPWA scheme, receive, from the radio communication network 300, data transmitted using a UDP, and a transfer controller 132 configured to transfer, to the host device 200, the data received by the radio communicator 131. The radio communicator 131 is configured to resume the radio communication after a predetermined time elapses after transitioning to a power saving state in which the radio communication is stopped, and receive data stored during in the power saving state. The transfer controller 132 is configured to cause a buffer to hold the data received by the radio communicator 131 when data transfer to the host device 200 is impossible when the radio communicator 131 resumes the radio communication.

Abstract: A LPWA communication apparatus 100 comprises a radio communicator 131 configured to perform a radio communication with a radio communication network 300 by an LPWA scheme, receive, from the radio communication network 300, data transmitted using a UDP, and a transfer controller 132 configured to transfer, to the host device 200, the data received by the radio communicator 131. The radio communicator 131 is configured to resume the radio communication after a predetermined time elapses after transitioning to a power saving state in which the radio communication is stopped, and receive data stored during in the power saving state. The transfer controller 132 is configured to cause a buffer to hold the data received by the radio communicator 131 when data transfer to the host device 200 is impossible when the radio communicator 131 resumes the radio communication.

Abstract: A radio communication terminal that performs data communication by selecting either one of a first data communication protocol and a second data communication protocol that has a lower level of priority than that of the first data communication protocol, comprising: a communication protocol determining part (6c) that determines whether or not a base station that is performing a communication is compatible with the first data communication protocol; a session status determining part (6f) that determines whether or not the establishment of communication session layers that perform the exchanging of the parameters required for communication with the base station has been completed; and a communication control part (6a) that selects either one of the first data communication protocol and the second data communication protocol based on a determination of the communication protocol determining part, and performs data communication on a selected protocol, wherein when the communication control part (6a) begins data

Abstract: It is possible to provide a radio communication terminal, a radio communication terminal communication control method, and a radio communication system which can effectively capture a communication system and try connection by a communication method desired by a user even if judgment of a blind spot is made when a transmission operation is performed. The radio communication terminal includes at least: a communication system selection unit (185); and a capture instruction function execution unit (186). The communication system selection unit (185) reports a capture failure to a capture instruction function execution unit (186) only when all the communication systems in which the radio communication terminal can perform a system scan cannot be captured. Moreover, the capture instruction function execution unit (186) does not issue a system scan again unless the capture failure is reported as a result of all the system scan from the communication system selection unit (185).

Abstract: It is possible to provide a radio communication terminal, a radio communication terminal communication control method, and a radio communication system which can effectively capture a communication system and try connection by a communication method desired by a user even if judgment of a blind spot is made when a transmission operation is performed. The radio communication terminal includes at least: a communication system selection unit (185); and a capture instruction function execution unit (186). The communication system selection unit (185) reports a capture failure to a capture instruction function execution unit (186) only when all the communication systems in which the radio communication terminal can perform a system scan cannot be captured. Moreover, the capture instruction function execution unit (186) does not issue a system scan again unless the capture failure is reported as a result of all the system scan from the communication system selection unit (185).

Abstract: It is possible to provide a radio communication terminal, a radio communication terminal communication control method, and a radio communication system, capable of effectively performing acquisition of a communication system and trying connection by a communication method desired by a user when a transmission process is generated even if the state is judged to be out-of-cell. When a communication start request is made in the state of out-of-cell in which communication is disabled, a control unit (18) performs an acquisition process start instruction instructing a communication unit (11) to acquire one of communication systems.

Abstract: A radio communication terminal that performs data communication by selecting either one of a first data communication protocol and a second data communication protocol that has a lower level of priority than that of the first data communication protocol, comprising: a communication protocol determining part (6c) that determines whether or not a base station that is performing a communication is compatible with the first data communication protocol; a session status determining part (6f) that determines whether or not the establishment of communication session layers that perform the exchanging of the parameters required for communication with the base station has been completed; and a communication control part (6a) that selects either one of the first data communication protocol and the second data communication protocol based on a determination of the communication protocol determining part, and performs data communication on a selected protocol, wherein when the communication control part (6a) begins data