Patent application number | Description | Published |
20090147893 | INTERFERENCE SUPPRESSION METHOD AND INTERFERENCE SUPPRESSION DEVICE - A reception station | 06-11-2009 |
20090161600 | Wireless slave unit - In a network area of a wireless network managed by a wireless master device, a wireless slave device performs wireless network communication with another wireless slave device connected by wire to a terminal, and wired network communication with a terminal connected by wire to the wireless slave device. The wireless slave device includes a wireless reception unit ( | 06-25-2009 |
20090190553 | RADIO COMMUNICATION SYSTEM, RADIO TERMINAL, BASE STATION, AND BASE STATION SEARCH METHOD - A wireless communication system includes a wireless terminal and a plurality of base stations that can communicate with each other via a predetermined communication path that is different from the wireless communication path to the wireless terminal. The wireless terminal transmits a request signal to one of the base stations to request a response signal from another base station. The one base station transfers the received request signal to the other base station via the predetermined communication path. Upon reception of the request signal transferred from the one base station, the second base station transmits a response signal to the wireless terminal via the predetermined channel. The wireless terminal receives the response signal transmitted from the second base station via the predetermined channel. | 07-30-2009 |
20090238196 | NETWORK SYSTEM AND RELAY DEVICE - when a network system of the present invention performs a bandwidth-guaranteed communication, a terminal device collects information on one or more relay devices on a path to another terminal device via a bandwidth request packet transmitted to the another terminal. When the bandwidth cannot be allocated, a detour path is searched according to the collected relay device information so as to perform the bandwidth-guaranteed communication via the detour path. | 09-24-2009 |
20100183087 | RECEPTION DEVICE, TRANSMISSION DEVICE, AND ADAPTIVE TRANSMISSION RATE CONTROL METHOD - In a receiver | 07-22-2010 |
20100232415 | CONTROL DEVICE, TERMINAL DEVICE, AND COMMUNICATION SYSTEM AND COMMUNICATION METHOD, USING THE SAME - A terminal device ( | 09-16-2010 |
20100260084 | WIRELESS COMMUNICATION APPARATUS, TERMINAL, SYSTEM, PROGRAM - Provided is a compact and low power consumption wireless communication system, including a base station and communication terminals, in which power consumption of the communication terminal is reduced. The base station alternately sets an active interval during which predetermined data communication is performed, and an inactive interval during which the predetermined data communication is not performed. During the active interval, a beacon including information indicating a start timing of a subsequent active interval is transmitted and received. During the inactive interval, a sub-beacon including information providing notice of a transmission timing of a subsequent beacon is transmitted and received. When receiving the sub-beacon, the communication terminal obtains the transmission timing of the subsequent beacon and stops a supply of power to an unit related to a wireless communication function until the transmission timing. | 10-14-2010 |
20110086661 | BASE STATION AND COMMUNICATION METHOD - A base station includes: an estimation section estimating transmission condition of each of frequency channels used for communication; a reception section receiving a data signal from each communication terminal through any of the frequency channels; a measurement section measuring received signal power of the received data signal for each frequency channel; a determination section determining, for each frequency channel, whether the received data signal is demodulated errorlessly; and a control section assigning frequency channels estimated as being in good transmission condition by the estimation section, to communication terminals the data signals of which are determined as not being errorlessly demodulated by the determination section, such that a frequency channel in a better transmission condition is assigned preferentially to a communication terminal having larger received signal power detected by the detection section, and transmitting retransmission request signals requesting the communication terminals to retransmit the data signals using the assigned frequency channels. | 04-14-2011 |
20110096679 | CONTROL DEVICE, TERMINAL DEVICE, AND COMMUNICATION SYSTEM - Provided is, a wireless network that conducts wireless communications having superior latency and power-saving performance, while avoiding interference wave influences by using multiple channels. Besides conducting communications with wireless communication terminals | 04-28-2011 |
20120147802 | COMMUNICATION APPARATUS AND COMMUNICATION METHOD - An energy controller ( | 06-14-2012 |
20120307702 | COMMUNICATION APPARATUS, COMMUNICATION METHOD, TERMINAL APPARATUS, AND COMMUNICATION SYSTEM - Provided is a communication apparatus which allows multi-rate control causing less waste of communication band as compared to conventional, the communication apparatus according to the present invention includes: the wireless communication unit for performing wireless communication with the terminal apparatus; a transfer rate setting unit for setting a transfer rate; a beacon generation unit for generating a beacon which is a first control signal; and a control unit for causing the wireless communication unit to wirelessly transmit, for every predetermined period, the beacon, and, to cause the wireless communication unit to wirelessly transmit the beacon, the control unit causes the transfer rate setting unit to set a transfer rate different from the transfer rate previously used for the wireless transmission of the beacon, and causes the wireless communication unit to transmit the beacon to the terminal apparatus. | 12-06-2012 |
20130034195 | INTERFERENCE SUPPRESSION METHOD AND INTERFERENCE SUPPRESSION DEVICE - A reception station | 02-07-2013 |
20130077558 | RELAY DEVICE, RECEIVING DEVICE, TRANSMITTING DEVICE, AND RELAY METHOD - A relay device according to the present invention includes: a receiving unit which receives a frame; a transmitting unit which transmits a frame; a frame determination unit which stores therein the first frame when the frame determination unit determines that the received frame is the first frame; a proxy ACK generation unit which generates a third frame which is a proxy frame of a second frame which is a frame to be transmitted from the receiving device, as a receipt acknowledgement to the first frame; and a communication control unit which: causes the transmitting unit to transmit the third frame; sets an extended active period in the inactive period subsequent to the active period; and transmits the first frame in the extended active period when the receiving unit does not receive the second frame within a predetermined period after reception of the first frame. | 03-28-2013 |
20130170426 | CONTROLLER, COMMUNICATION TERMINAL, AND WIRELESS COMMUNICATION SYSTEM - A control point device that reduces delay in a power-saving wireless network includes a normal data generating unit that generates 1 | 07-04-2013 |