Abstract: A control apparatus of a communication system that uses a plurality of communication paths from a transmission node to a reception node to redundantly transmit data is provided. The apparatus comprises: a setting unit for setting priorities to a plurality of partial data; a calculation unit for calculating the time slot number which is required to transmit the partial data on the communication paths; a selection unit for selecting one or more combinations of the partial data and the communication path. The selection unit selects the one or more combinations in descending order of the priorities of the partial data and selects the one or more combinations in ascending order of the required time slot number if the priorities of the partial data are equal.

Abstract: When data either uncompressed or compressed at a predetermined compression ratio and high-compression data compressed at a compression ratio higher than the predetermined compression ratio are sent through different communication paths, if an error occurs on the communication path through which the data either uncompressed or compressed at the predetermined compression ratio is being sent, the data either uncompressed or compressed at a predetermined compression ratio is sent through the communication path used to send the high-compression data up to that time.

Abstract: Communication bands occupied by wireless communication paths extending from a source node to a destination node are determined, and a combination of wireless communication paths is selected based on spatial distances between wireless communication paths from combinations of wireless communication paths in each of which the number of communication bands with respect to a combination of wireless communication paths is smaller than a threshold.

Abstract: A communication system that transmits a plurality of pieces of video data to be synthesized and output to a plurality of output apparatus after dividing into a plurality of pieces of video having different qualities, in which, in a case where the plurality of pieces of video data are transmitted to the plurality of apparatus to synthesize and output the data, it is so configured that a difference in video quality is made so as not to be remarkable even when each apparatus cannot receive the video data having the same quality, wherein a reception state of the video data in each output apparatus of the plurality of output apparatus is determined and the quality of the video data to be synthesized and output is decided according to the reception state of the video data in each output apparatus, thereby outputting the video data having thus decided quality.

Abstract: Regarding an apparatus capable of transmitting data using a high-rate transmission channel having narrow directivity and a low-rate transmission channel having wide directivity, data is not correctly sent in some cases because a communication path for the high-rate transmission channel is easily interrupted. In contrast, it is not possible to realize sending of high-quality data using the low-rate transmission channel. The same data is simultaneously transmitted using the high-rate transmission channel and the low-rate transmission channel. The data that has been received using the high-rate transmission channel or the data that has been received using the low-rate transmission channel is selected in accordance with a state of reception using the high-rate transmission channel.

Abstract: Regarding an apparatus capable of transmitting data using a high-rate transmission channel having narrow directivity and a low-rate transmission channel having wide directivity, data is not correctly sent in some cases because a communication path for the high-rate transmission channel is easily interrupted. In contrast, paths for the low-rate transmission channel are less likely to be interrupted than a path for the high-rate transmission channel. Compressed data is transmitted via the low-rate transmission channel, and loss data that is lost by compression is transmitted via the high-rate transmission channel. An apparatus on a reception side combines, with the loss data, data that is obtained by decompressing the compressed data, and output the combined data. When the loss data cannot be received, the apparatus outputs the data that is obtained by decompressing the compressed data.

Abstract: A communication network includes a control node and one or more controlled nodes. The control node transmits allocation information, which indicates a non-conflict region of each node in the communication frame, in a non-conflict region allocated to the control node, if an access request has been received from a new node, allocates a non-conflict region of the new node to the communication frame, and updates the allocation information based upon the allocation. The controlled node relays the allocation information in the non-conflict region of the controlled node if the allocation information has been received, and relays the access request in the non-conflict region of the controlled node if the access request has been received. The new node detects the conflict region and non-conflict region of the communication frame based upon the received allocation information, and transmits, in the detected conflict region, the access request to access the communication network.

Abstract: A communication system having a plurality of communication stations, and the plurality of communication stations includes a relay station for relaying data, the relay station comprises: a reception means for receiving, from another communication station, a reception response with respect to data to be relayed; a selection means for selecting a relay destination communication station for received data based on the reception response received by the reception means; a setting means for setting redundancy of data when data is relayed to the relay destination communication station based on reception quality of data from the relay station at the relay destination communication station selected by the selection means; and a transmission means for relaying data to the relay destination communication station in accordance with the redundancy of data set by the setting means.

Abstract: A control apparatus for use in a system in which a transmission source apparatus transmits data to a destination apparatus a plurality of times via a plurality of different communication paths comprising at least one path link each formed by two communication apparatuses directly communicating with each other using at least one of a plurality of antenna radiation patterns, the control apparatus including an acquisition unit configured to acquire communication quality information for each antenna radiation pattern of each communication apparatus forming the path links of the communication paths, a selection unit configured to select a plurality of communication paths exhibiting high communication quality based on the communication quality information acquired by the acquisition unit, and a first allocation unit configured to allocate, to a time slot, a path link of the selected communication paths and an associated antenna radiation pattern for each communication apparatus forming the allocated path link.

Abstract: A control apparatus of a communication system that uses a plurality of communication paths from a transmission node to a reception node to redundantly transmit data is provided. The apparatus comprises: a setting unit for setting priorities to a plurality of partial data; a calculation unit for calculating the time slot number which is required to transmit the partial data on the communication paths; a selection unit for selecting one or more combinations of the partial data and the communication path. The selection unit selects the one or more combinations in descending order of the priorities of the partial data and selects the one or more combinations in ascending order of the required time slot number if the priorities of the partial data are equal.

Abstract: A wireless communication device includes a first storage unit, a second storage unit, an operating unit, and a control unit. The first storage unit further includes a plurality of separate storage areas corresponding to a plurality of program codes, respectively. The second storage unit is used to execute the plurality of program codes. The operating unit is configured to issue instructions to turn on power and to start up an application. The control unit is configured to load, on receipt of the instructions from the operating unit, at least one program code required to start up the application from the first storage unit into the second storage unit. The control unit is also configured to execute the at least one program code to start up the application. The at least one program code is included in the plurality of program codes.

Abstract: A radio communication terminal of the present invention determines expected communication speeds used on a forward link on the basis of receiving conditions of carriers Cfw1 to Cfw3 and transmits DRC values indicating the expected communication speeds to radio base stations. When the number of reverse link carriers used for communication on a reverse link is less than the number of radio base stations, the radio communication terminal transmits the speed control values for the radio base is stations by use of a carrier Crv1.

Abstract: There is provided a control section 82 having a first function of commencing receipt of broadcast contents data in accordance with an open/closed state of the housing that is a result of detection performed by the housing status detection section or completing receiving operation in consideration of the content of received data; a second function of commencing or completing, during receipt of broadcast contents data, saving of data into a storage section 83 in accordance with the open/closed state of the housing that is a result of detection performed by the housing status detection section; and a third function of commencing or completing, during receipt of the broadcast contents data, playback of the data saved in the storage section 83 in accordance with the open/closed state of the housing that is a result of detection performed by the housing status detection section.

Abstract: The present invention has an object to prevent an automatic download from overlapping usage of the mobile communication terminal completely or as much as possible. In order to achieve the above-described objective, the present invention provides a mobile communication terminal includes: a wireless communication portion; and a control portion which downloads software via the wireless communication portion from a software distribution apparatus connected to a network, wherein the control portion, when an update operation is conducted by using the downloaded software, displays a screen indicating end of operations of system software of the mobile communication terminal.

Abstract: A WiMAX compatible base station (BS) includes: an allocator unit (10B, 10C) configured to allocate allocation information of the downlink burst (DL-MAP) as transmission information in a first region (MAP region), and to allocate the downlink burst as transmission information in the second region (downlink burst region); and a transmitter unit (10F) configured to transmit the allocation information of the downlink burst with a non-directional beam, and to transmit the downlink burst with a non-directional beam or a directional beam. When detecting an unused region (A) where no transmission information is allocated after allocating the transmission information in the first region and the second region in the frame structure, the allocator unit is configured to reallocate, by use of the detected unused region, the allocation information of the downlink burst as the transmission information in the first region.

Abstract: A wireless communication device includes a first storage unit, a second storage unit, an operating unit, and a control unit. The first storage unit further includes a plurality of separate storage areas corresponding to a plurality of program codes, respectively. The second storage unit is used to execute the plurality of program codes. The operating unit is configured to issue instructions to turn on power and to start up an application. The control unit is configured to load, on receipt of the instructions from the operating unit, at least one program code required to start up the application from the first storage unit into the second storage unit. The control unit is also configured to execute the at least one program code to start up the application. The at least one program code is included in the plurality of program codes.