摘要:
A portable communication terminal comprises wireless communication units 1, 2 for transmitting and receiving data by connecting to a communication line by wireless, broadcasting receiving units 3-9 for receiving digital broadcasting including a program image and data broadcasting, a communication service area determining unit 17 for determining whether or not to be in communication service area, a display unit 12 which has an image display region 23, a data broadcasting display region 24, and a soft key display region 25, a display control unit 11 for controlling display of the data broadcasting display region 24 and/or the soft key display region 25 based on at least the determination result by the communication service area determining unit 17, an access request detecting unit 15, and a wireless communication control unit 18 for controlling the wireless communication units 1,2 based on detection result by the access request detecting unit 15.
摘要:
In order to perform handover from a first wireless communication network to a second wireless communication network, a handover control unit obtains a handover preparation time Tb to handover, respective delay times Tddn1 and Tddn2 of the wireless communication networks, and the jitter buffer monitoring unit monitors a packet amount Tc in the jitter buffer and a type of the packet to be reproduced. The application is controlled, in case of voice packets, so as to reproduce the voice packets at a reproduction speed calculated based on the handover preparation time Tb, the delay times Tddn1 and Tddn2, the packet amount Tc in the jitter buffer and an elapsed time after start of handover preparation and, in case of non-voice packets, so as to control the non-voice packets at a reproduction speed in accordance with a silent period thereof. Thereby, it is possible to perform handover to a different wireless communication network without deteriorating reproduction quality and real-time property.
摘要:
An origination terminal UA100 according to the present invention is provided with a screen state memory unit 500 for storing a screen state of an information display unit 360 at transmission of a call request including information on communication on a desired network and an initiation state of an application corresponding to the screen state and a control unit 320 for controlling the information display unit 360, when receiving a call enable notification in response to a call enable notification request transmitted after cancellation of a call from a destination terminal UA200, which becomes able to use the desired network, to display the screen state stored in the screen state memory unit 500 and, when detecting a call instruction in the screen state, an application corresponding to the call instruction to send a call.
摘要:
A reproduction speed of an application being executed is controlled with changing an upper limit of accumulation of a jitter buffer based on a radio state during communication by a first wireless communication network. If it is determined to start handover preparation from the first wireless communication network to a second wireless communication network, a preparation time before handover and an absolute delay time of each of the first wireless communication network and the second wireless communication network are obtained from the handover control unit. Based on such information obtained and a data amount in a jitter buffer at a time when it is determined to start the handover preparation, the reproduction speed of the application being executed is controlled to be slowed down. Thereby, it is possible to perform handover to a different wireless communication network without deteriorating reproduction quality and real-time property.
摘要:
In order to perform handover from a first wireless communication network to a second wireless communication network, a handover control unit obtains a handover preparation time Tb to handover, respective delay times Tddn1 and Tddn2 of the wireless communication networks, and the jitter buffer monitoring unit monitors a packet amount Tc in the jitter buffer and a type of the packet to be reproduced. The application is controlled, in case of voice packets, so as to reproduce the voice packets at a reproduction speed calculated based on the handover preparation time Tb, the delay times Tddn1 and Tddn2, the packet amount Tc in the jitter buffer and an elapsed time after start of handover preparation and, in case of non-voice packets, so as to control the non-voice packets at a reproduction speed in accordance with a silent period thereof. Thereby, it is possible to perform handover to a different wireless communication network without deteriorating reproduction quality and real-time property.
摘要:
In order to perform handover from a first wireless communication network 15 to a second wireless communication network 16, a preparation time for handover, communication quality after scheduled handover execution, and a delay time of each of the first wireless communication network and the second wireless communication network are obtained by a handover control unit 36 in advance. Based on such information obtained and data amount in a jitter buffer 47 at a time of determination to start preparation for handover, a reproduction speed of an application being executed is controlled. Thereby, it is possible to perform handover to a different wireless communication network without deteriorating the reproduction quality and real-time property.
摘要:
Each of wireless communication terminals UA10 and UA20, capable of using a plurality of different wireless communication systems in accordance with the present invention, are provided with a transmission unit 110 for transmitting a call request including information on a condition of a wireless communication system desired by a calling side by use of a predetermined wireless communication system and a control unit 120 for controlling, when information that the called side uses the wireless communication system not satisfying the condition of the wireless communication system desired by the calling side is received in response to the call request transmitted by the transmission unit 110, to retransmit the call request based on the received information on the wireless communication system used by the called side by use of another wireless communication system different from the predetermined wireless communication system.
摘要:
The communication control apparatus 100 of the present invention carries out complementary communication by selecting plural wireless communication paths 10A, 10B between a wireless communication apparatus 300 and itself. The communication control apparatus 100 includes: a calculation unit (135, 137, 105) for calculating, on the basis of a packet received by way of each wireless communication path, ideal signal-reception timing and allowable limit timing of the received packet at the wireless communication path; a memory unit (107) for receiving and memorizing variation absorbing time at the received packet in the application transmitted from the wireless communication apparatus; and a selection unit (105) for selecting the plural different wireless communication paths such that variation request time, obtained on the basis of the ideal signal-reception timing and the allowable limit timing at each wireless communication path calculated by the calculation unit, does not exceed the variation absorbing time in the application memorized in the memory unit.
摘要:
In order to decide an attribute of each data carrier without manual operation, an RFID reader (30) which is carried by a user includes an identification information acquisition unit (310) reading identification information for identifying an RFID from the RFID in the vicinity in a non-contact state, a reader position acquisition unit (315) obtaining reader position information indicating a position of the RFID reader (30) when the identification information is read, an RFID position decision unit (316) deciding representative position information indicating the position of the RFID based on the obtained reader position information, and a storage unit (32) correlating the decided representative position information with the read identification information and storing them.
摘要:
A transmission control device is attached to a package containing contents which have individual wireless transmitting devices for transmitting identifiable information. The transmission control device detects whether the package is opened, and invalidates the identifiable information when the opening of the package is not detected.