| Patent application number | Description | Published |
|---|
| 20080248824 | Scheduling Method, Base Station and Terminal - A radio communications system includes a base station that measures reception quality based on a pilot signal received from terminals in its service area and allocates radio resources to the terminals based on the reception quality. The base station generates scheduling information that specifies time for transmission of a pilot signal and a frequency band at which the pilot signal is to be transmitted such that transmissions from the terminals in the service area will not overlap. Each terminal performs transmission based on the scheduling information received from the base station. | 10-09-2008 |
| 20090175183 | DATA COMMUNICATION METHOD AND MOBILE COMMUNICATION SYSTEM - Since OFDM (Orthogonal Frequency Division Multiplexing), which is a downlink access scheme used for an LTE (Long Term Evolution) communication system, is weak at interference, it is preferable that the number of base stations for transmitting the same E-MBMS (Evolved Multimedia Broadcast Multicast Service) data be not excessive. | 07-09-2009 |
| 20090180414 | Mobile Communication System and Mobile Terminal - A mobile terminal judges whether or not the mobile terminal is able to make a transition to a DTX period during Active, and, when judging that the mobile terminal is able to make a transition to a DTX period during Active, notifies a base station to that effect. If the base station judges that the mobile terminal is able to make a transition to a DRX period during Active when triggered by the notification from the mobile terminal, the base station temporarily stops supply of electric power to the data transmission processing units and the data reception processing units of the mobile terminal. | 07-16-2009 |
| 20090290544 | COMMUNICATION METHOD AND COMMUNICATION APPARATUS - A communication method that performs low density parity check (LDPC) coding to a data stream to be transmitted in a radio communication system by using a parity check matrix that has columns with uneven column degrees. The columns are arranged in a descending order of the column degrees. The communication method includes segmenting a code word into a plurality of data streams depending on number of data bits that are assignable to a radio resource block that is a unit of radio transmission, and assigning a segmented data stream having a higher column degree to a radio resource block with higher quality. | 11-26-2009 |
| 20100061285 | DATA COMMUNICATIONS METHOD AND MOBILE COMMUNICATIONS SYSTEM - In a communications system including a base station capable of altering a frequency bandwidth which is used for transmitting broadcast data for providing point-to-multipoint broadcasting communications service and which is used for transmitting individual communications data for providing point-to-point individual communications service, and a mobile terminal capable of altering a receivable bandwidth which is used for receiving at least the broadcast data and the individual communications data transmitted from the base station, decision processing of making a decision as to whether the mobile terminal can receive reception-desired content it desires to receive among contents provided by the broadcasting communications service is executed in accordance with a frequency occupying bandwidth used for transmitting the reception-desired content. Thus, the mobile terminal becomes able to make a decision as to whether it can receive particular E-MBMS content considering its own UE position. | 03-11-2010 |
| 20100118995 | WIRELESS COMMUNICATION SYSTEM, BASE STATION, TERMINAL DEVICE, AND WIRELESS COMMUNICATION METHOD - In a communication system in which a communication is performed between a base station and one or more terminals by using one or more communication channels, a control element unit is defined by T OFDM symbols and F subcarriers. A second combination of T and F is determined for a first combination of T and F such that the number of modulation symbols (one OFDM symbol x one subcarrier) included in the control element unit defined by the second combination is closest to the number of modulation symbols included in the control element unit defined by the first combination. | 05-13-2010 |
| 20100165933 | CHANNEL ALLOCATION NOTIFYING METHOD, COMMUNICATION METHOD, AND COMMUNICATION APPARATUS - The number of communication channels necessary for communication with a terminal is calculated by using type and volume of data to be transmitted (Step S | 07-01-2010 |
| 20100167772 | COMMUNICATION METHOD, WIRELESS COMMUNICATION SYSTEM, TRANSMITTER, AND RECEIVER - In a wireless communication system where data transmission is performed between a base station and terminals, the base station individually generates, for each terminal, a bit map indicative of scheduling resource numbers to be allocated to terminals to which Localized transmission is applied, based on a resource-number mapping rule defined by providing individual resource block numbers to all resource blocks, taking resource block numbers of resource blocks for Distributed transmission as fixed values, and providing individual scheduling resource numbers to remaining resource blocks for Localized transmission except the resource blocks for Distributed transmission for each of scheduling resources corresponding to the number of aggregation. | 07-01-2010 |
| 20100214990 | WIRELESS COMMUNICATION SYSTEM, BASE STATION, TERMINAL DEVICE, AND WIRELESS COMMUNICATION METHOD - In a communication system in which a communication is performed between a base station and one or more terminals by using one or more communication channels, a control element unit is defined by T OFDM symbols and F subcarriers. A second combination of T and F is determined for a first combination of T and F such that the number of modulation symbols (one OFDM symbol×one subcarrier) included in the control element unit defined by the second combination is closest to the number of modulation symbols included in the control element unit defined by the first combination. | 08-26-2010 |
| 20100232302 | CHANNEL QUALITY REPORTING METHOD, SCHEDULING METHOD, AND COMMUNICATION SYSTEM, TERMINAL AND BASE STATION - A method of reporting channel quality indication according to the present invention is a method in which each terminal in a communication system monitors quality of a complete system frequency range. When a frequency band of better quality than a frequency band being currently used for data communication and a frequency group including the frequency band of better quality are not detected, each terminal reports channel quality indication of a frequency group formed by a plurality of frequency bands including the frequency band being currently used for data communication. On the other hand, when a frequency band of better quality than a frequency band being currently used for data communication and a frequency group including the frequency band of better quality are detected, each terminal reports channel quality indication of the frequency group that is formed by a plurality of frequency bands including the frequency band of better quality. | 09-16-2010 |
| 20100232367 | COMMUNICATION APPARATUS, RADIO COMMUNICATION SYSTEM AND RADIO COMMUNICATION METHOD - A communication apparatus for use in a radio communication system having plural communication channels on a frequency domain. The communication apparatus includes an ACK/NACK generating unit that generates an ACK or a NACK based on a result of decoding of a received signal; a quality-information organizing unit that accumulates a channel quality obtained by a predetermined measuring process, of each of the communication channels, and that outputs a CQI in timing of an ACK or an NACK output by the ACK/NACK generating unit; and a transmitting unit that receives a CQI from the quality-information organizing unit and receives an ACK or an NACK from the ACK/NACK generating unit, and that transmits the CQI and the ACK or the NACK through the same communication channel. | 09-16-2010 |
| 20110090836 | DATA COMMUNICATION METHOD AND MOBILE COMMUNICATION SYSTEM - Since OFDM (Orthogonal Frequency Division Multiplexing), which is a downlink access scheme used for an LTE (Long Term Evolution) communication system, is weak at interference, it is preferable that the number of base stations for transmitting the same E-MBMS (Evolved Multimedia Broadcast Multicast Service) data be not excessive. | 04-21-2011 |
