Patent application number | Description | Published |
20080280650 | COMMUNICATION CONTROL APPARATUS, COMMUNICATION APPARATUS AND COMMUNICATION SYSTEM - An EV-DO terminal module is made up of hardware and software for implementing the function as an EV-DO terminal. A W-LAN terminal module is made up of hardware and software for implementing the function as an AP of W-LAN. An information exchange terminal module has a function equal to that of the W-LAN terminal module. A control module has a dialup function and a function based on PPP protocol and is a hardware and software module for controlling the EV-DO terminal module, the information exchange terminal module, and the W-LAN terminal module. | 11-13-2008 |
20090034456 | Communications Systems - In a multi user communication system, subcarriers are allocated to subchannels using a quality measurement for each subchannel. An initial sub carrier is allocated to each subchannel, and a quality metric measured. Subsequent subcarriers are allocated in dependence upon the quality measurement for each subchannel. The subchannel with the lowest quality measurement receives the first allocation, and the subchannel with the highest quality measurement receives the last allocation. The subsequent allocation is repeated, following a re-sort of the subchannel quality measurements, until all of the subcarriers are allocated. | 02-05-2009 |
20090207829 | Communications Systems - In a multi user communication system, subcarriers are allocated to subchannels using a quality measurement for each subchannel. An initial sub carrier is allocated to each subchannel, and a quality metric measured. Subsequent subcarriers are allocated in dependence upon the quality measurement for each subchannel. The subchannel with the lowest quality measurement receives the first allocation, and the subchannel with the highest quality measurement receives the last allocation. The subsequent allocation is repeated, following a re-sort of the subchannel quality measurements, until all of the subcarriers are allocated. | 08-20-2009 |
20100142477 | Wireless Communication Terminal and Method of Controlling the Same - It is judged whether a mobile node | 06-10-2010 |
20100290434 | Radio Communication Device and Radio Communication Method - A radio communication terminal | 11-18-2010 |
20100329191 | Radio Communication Device and Radio Communication Method - A wireless communication device includes a battery voltage monitoring section, which monitors the amount of decline in output voltage when a network connection section is connected to a wireless communication network to which the wireless communication device should be connected based on a communication, request; and an operation control section, which selects fewer wireless communication networks than the wireless communication device should be connected to based on the communication request if a predicted voltage calculated by subtracting the amount of decline from the output voltage is less than or equal to a predetermined threshold, and connects the network connection section to the selected one or more wireless communication networks. Based on the amount of decline, the operation control section selects one or more wireless communication networks so that the predicted voltage exceeds the predetermined threshold. | 12-30-2010 |
20110044210 | Communication System, Wireless Communication Terminal, Communication Method, Wireless Communication Method, Wireless Communication Apparatus and Control Method Thereof - A communication system having call control servers ( | 02-24-2011 |
20110158201 | RADIO TERMINAL AND COMMUNICATION TERMINAL - A radio terminal ( | 06-30-2011 |
20110205922 | RADIO TERMINAL AND COMMUNICATION TERMINAL - A radio terminal ( | 08-25-2011 |
20110286559 | INTERFERENCE CANCELLATION - There is provided a first device for use in a communication system, the communication system further comprising a plurality of second devices divided into a plurality of groups, the system having a plurality of orthogonal frequency carriers available for transmissions, each second device having a respective carrier frequency offset estimated from signals received from the first device, each of the second devices transmitting a respective stream of symbols using the respective estimated carrier frequency offset and one or more frequency carriers selected from the plurality of orthogonal frequency carriers, the first device comprising receiver circuitry for receiving respective signals from each of the second devices; a channel estimator for generating, from the received signals, an estimate of the channel over which the signals have been transmitted; an interference estimator for generating, from the received signals, an estimate of interference at the first device caused by errors in the carrier frequency offsets estimated by each second device; first circuitry for cancelling interference in the signals received at the first device using the estimate of the interference, the circuitry being configured to cancel interference between second devices within a first one of the plurality of groups; second circuitry for equalising the signals output from the first circuitry using the estimate of the channel; and third circuitry for cancelling interference in the signals output from the second circuitry, the third circuitry being configured to cancel the interference between second devices in a second one of the plurality of groups. | 11-24-2011 |
20120039192 | INTERFERENCE CANCELLATION - There is provided a first device for use in a communication system, the communication system further comprising a plurality of second devices, the system having a plurality of orthogonal frequency carriers available for transmissions, each second device having a respective carrier frequency offset estimated from signals received from the first device, each of the second devices transmitting a respective stream of symbols using the respective estimated carrier frequency offset and one or more frequency carriers selected from the plurality of orthogonal frequency carriers, the first device comprising receiver circuitry for receiving respective signals from each of the second devices; a channel estimator for generating, from the received signals, an estimate of the channel over which the signals have been transmitted; an interference estimator for generating, from the received signals, an estimate of interference at the first device caused by errors in the carrier frequency offsets estimated by each second device; and circuitry for equalising the received signals using the estimate of the channel and the estimate of the interference. | 02-16-2012 |
20120046067 | RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION TERMINAL AND COMMUNICATION CONTROLLING METHOD - A video streaming client ( | 02-23-2012 |