Patent application number | Description | Published |
20110305212 | BASE STATION, METHOD FOR ARRANGING SUB BURST REGION IN BASE STATION, METHOD FOR DETERMINING TERMINAL TO BE COMMUNICATED WITH, AND METHOD FOR ALLOCATING DOWNLINK BURST REGION - A base station according to the present invention is a base station in WiMAX. The base station according to the present invention includes: a first arrangement section for arranging a predetermined region for sub-burst, in a downlink sub-frame to be transmitted from a transmission section to a communication terminal; and a second arrangement section for arranging, in the predetermined region, at least one sub-burst region for HARQ allocated to at least one communication terminal. The second arrangement section sequentially reserves a plurality of sub-burst slots in the predetermined region, and thereby arranges the sub-burst region in the predetermined region. With respect to at least initial and next slots reserved in the predetermined region, the second arrangement section reserves these slots along a symbol direction. | 12-15-2011 |
20120195199 | WIRELESS TERMINAL, AND WIRELESS COMMUNICATION METHOD - A QoS management unit receives notification of QoS parameters for a plurality of uplink service flows from a wireless base station. A burst region management unit receives notification of an uplink user data burst region from the wireless base station. A service flow assignment unit assigns a region of uplink service flows at the uplink user data burst region assigned to its own terminal. The service flow assignment unit assigns a region of uplink service flows, prioritizing the region of at least one service flow satisfying conditions for the transmission rate, delay time, and delay time variation of the notified QoS parameters for each service flow over a region of another service flow. | 08-02-2012 |
20120195217 | COMMUNICATION DEVICE - A communication device and methods are disclosed. A first throughput is calculated when a current modulation scheme and a current encoding rate is changed, and a second throughput is calculated when a current retransmission unit is changed. The current modulation scheme and the current encoding rate are changed to provide a changed modulation scheme and a changed encoding rate, if the first throughput is greater than or equal to the second throughput when prescribed conditions are met. The current retransmission unit is changed to provide a changed retransmission unit, if the first throughput is less than the second throughput. Information is transmitted to a communication device of a communication partner based on the changed modulation scheme, the changed encoding rate, and the changed retransmission unit. | 08-02-2012 |
20120287788 | COMMUNICATION APPARATUS AND COMMUNICATION METHOD - A setting unit sets a communication mode for different one or more counterpart communication apparatuses to a non-spatial multiplexing mode or a spatial multiplexing mode. Setting unit switches the setting of the communication mode for the different one or more counterpart communication apparatuses from the non-spatial multiplexing mode to the spatial multiplexing mode, on the basis of a capability of a communication system having an own apparatus and the different one or more counterpart communication apparatuses. A transmitting unit processes a transmitting signal to the different one or more counterpart communication apparatuses to output the processed signal to a plurality of antennas, on the basis of the set communication mode. | 11-15-2012 |
20130114555 | WIRELESS BASE STATION AND WIRELESS COMMUNICATION METHOD - A user data resource determination unit determines any sub carriers in any downlink subframe as a first resource from which downlink user data is transmitted to a wireless terminal. A sounding resource determination unit determines a part of an uplink part in a closest switch subframe preceding the determined downlink subframe as a second resource from which a wireless terminal transmits a sounding reference signal, and notifies the wireless terminal of the determined second resource. A transmission path state estimation unit estimates a state of a transmission path to the wireless terminal based on the sounding reference signal from the wireless terminal. A transmission unit forms directivity of a plurality of antennas based on the estimated state of the transmission path and transmits downlink user data. | 05-09-2013 |
20130176977 | WIRELESS BASE STATION AND WIRELESS COMMUNICATION METHOD - A resource determination unit determines at least a part of an uplink part in a switch subframe as a second resource for a wireless terminal to transmit an SRS and determines at least a part within any uplink subframe as a third resource for the wireless terminal to transmit uplink user data including a DRS for a prescribed period. A transmission path state estimation unit estimates a state of a transmission path to the wireless terminal based on the DRS included in the uplink user data after the third resource is determined. A resource notification unit forms antenna directivity based on the estimated state of the transmission path and transmits a control message for notifying the wireless terminal of the determined second resource. | 07-11-2013 |
20130176996 | WIRELESS BASE STATION AND WIRELESS COMMUNICATION METHOD - A resource determination unit determines at least a part within any downlink subframe as a first resource and determines at least a part of an UpPTS (Uplink Pilot Timeslot) or a part of an uplink subframe as a second resource for transmitting an SRS (Sounding Reference Signal). A transmission path state estimation unit estimates a state of a transmission path to a wireless terminal based on a DRS (Demodulation Reference Signal) included in uplink user data after the first resource is determined and until it receives an SRS, and it estimates a state of the transmission path to the wireless terminal based on an SRS after it received the SRS. | 07-11-2013 |
20130215847 | WIRELESS BASE STATION AND WIRELESS COMMUNICATION METHOD - A transmission path state estimation unit estimates a state of a transmission path to a wireless terminal based on a DRS (Demodulation Reference Signal) included in uplink user data received from the wireless terminal when a re-sending request is received after transmission of an SRS is stopped. A transmission unit forms directivity of a plurality of antennas based on the estimated state of the transmission path and transmits downlink user data. | 08-22-2013 |
Patent application number | Description | Published |
20130215851 | RADIO BASE STATION AND COMMUNICATION CONTROL METHOD - A wireless base station (eNB | 08-22-2013 |
20130225186 | RADIO BASE STATION, RADIO TERMINAL, AND COMMUNICATION CONTROL METHOD - In a case where, although a radio base station (eNB | 08-29-2013 |
20130230018 | RADIO BASE STATION AND COMMUNICATION CONTROL METHOD - Disclosed is a wireless base station (eNB | 09-05-2013 |
20130273973 | RADIO BASE STATION AND COMMUNICATION CONTROL METHOD - If the frequency band of an SRS from a serving radio terminal (UE | 10-17-2013 |
20130308594 | RADIO BASE STATION, RADIO TERMINAL, AND COMMUNICATION CONTROL METHOD | 11-21-2013 |
20140023012 | BASE STATION - A use signal determining section determines the use of a first known signal for array transmission control, when a downlink priority is higher than a threshold value. The use signal determining section determines the use of a second known signal for the array transmission control, when the downlink priority is lower than the threshold value. When the first known signal is used for the array transmission control for a communication terminal performing downlink communication therewith, a scheduling executing section determines to perform uplink communication with the communication terminal. When the second known signal is used for the array transmission control for a communication terminal performing downlink communication therewith, the scheduling executing section determines whether or not to perform uplink communication with the communication terminal by using an uplink priority for the communication terminal. | 01-23-2014 |