Patent application number | Description | Published |
20120163320 | WIRELESS COMMUNICATION SYSTEM, MOBILE STATION APPARATUS AND BASE STATION APPARATUS - To provide a wireless communication system, a mobile station apparatus and a base station apparatus which reduce a resource overhead in the transmission of an aperiodic SRS, and are not accompanied with a major change from the specification of the LTE. The wireless communication system includes the base station apparatus and the mobile station apparatus transmitting a data signal to the base station apparatus by SC-FDMA (Single Carrier Frequency Division Multiple Access) system, and the mobile station apparatus transmits a reference signal for channel measurement to the base station apparatus, and the reference signal for channel measurement is transmitted using a channel for data transmission allocated for each of the mobile station apparatuses from the base station apparatus. | 06-28-2012 |
20120281650 | WIRELESS COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS, CONTROL METHOD OF WIRELESS COMMUNICATION SYSTEM, CONTROL PROGRAM OF BASE STATION APPARATUS, AND CONTROL PROGRAM OF MOBILE STATION APPARATUS - A base station apparatus communicates with a mobile station apparatus transmitting a data signal and a reference signal for channel estimation. The base station includes: a simultaneous transmission setting part which sets simultaneous transmission control information indicating whether or not to enable simultaneous transmission of the data signal and the reference signal, a transmission section which transmits the set simultaneous transmission control information to the mobile station apparatus; and a radio resource control section which determines whether or not to enable simultaneous transmission of the data signal and the reference signal on the basis of a power headroom which is notified from the mobile station apparatus, the headroom being a difference between the maximum transmit power value of the mobile station apparatus and a prescribed power value estimated for uplink transmission. | 11-08-2012 |
20120328044 | COMMUNICATION APPARATUS, CONTROL PROGRAM FOR THE SAME, AND INTEGRATED CIRCUIT - In a radio communication method non-contiguously using a frequency, notification information is reduced, while suppressing an effect on performance. In a communication apparatus which switches between a communication method contiguously using a frequency and a communication method non-contiguously using the frequency, sets a parameter corresponding to each communication method, and performs radio communication, the communication apparatus sets a same parameter to an entire frequency band in the communication method contiguously using the frequency, while dividing a frequency band into a plurality of frequency bands and setting a different parameter for each divided frequency band in the communication method non-contiguously using the frequency. The communication method contiguously using the frequency and the communication method non-contiguously using the frequency mutually have different PAPR (Peak to Average Power Ratio) characteristics. | 12-27-2012 |
20130121280 | WIRELESS COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS, WIRELESS COMMUNICATION METHOD AND INTEGRATED CIRCUIT - It is possible to perform effective communication based on an A-SRS transmitted from a mobile station apparatus. A base station apparatus: notifies the mobile station apparatus of control information for setting, to the mobile station apparatus, whether to transmit a first sounding reference signal assigned in a physical uplink shared channel resource or to transmit a second sounding reference signal assigned in a resource different from the physical uplink shared channel resource; and notifies the mobile station apparatus of an uplink grant including an indication of transmission of a sounding reference signal. When receiving the indication of transmission of the sounding reference signal included in the uplink grant, the mobile station apparatus transmits the first sounding reference signal to the base station apparatus when the transmission of the first sounding reference signal is set by transmission control information, and transmits the second sounding reference signal to the base station apparatus when the transmission of the second sounding reference signal is set by the transmission control information. | 05-16-2013 |
20130148593 | MOBILE STATION APPARATUS, BASE STATION APPARATUS, RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - In a radio communication system using OCC for DMRS, a base station apparatus correctly receives PUSCH. If a first mode is set in which a demodulation reference signal of a physical uplink shared channel is multiplied by an orthogonal code determined in advance or if a temporary C-RNTI was used for a transmission of downlink control information, the demodulation reference signal of the physical uplink shared channel is multiplied by the orthogonal code determined in advance, and if a second mode is set in which the demodulation reference signal of the physical uplink shared channel is multiplied by an orthogonal code determined on the basis of cyclic shift information in the downlink control information and moreover, if an RNTI other than the temporary C-RNTI was used for the transmission of the downlink control information, the demodulation reference signal of the physical uplink shared channel is multiplied by the orthogonal code determined on the basis of the cyclic shift information in the downlink control information. | 06-13-2013 |
20130156011 | MOBILE STATION APPARATUS, BASE STATION APPARATUS, WIRELESS COMMUNICATION SYSTEM, WIRELSS COMMUNICATION METHOD AND INTEGRATED CIRCUIT - A mobile station apparatus efficiently codes and transmits ACK/NACKs for a plurality of PDSCHs. The mobile station transmits a plurality of ACK/NACKs for transport blocks transmitted by a base station apparatus in a plurality of component carriers to the base station. First and second ACK/NACKs are individually coded, repetition processing is performed on coded bits of the first ACK/NACKs until the number of coded bits of the first ACK/NACKs reaches a first value, the repetition processing is performed on the coded bits of the second ACK/NACKs until the number of coded bits reaches a second value, the coded bits of the first ACK/NACKs and the coded bits of the second ACK/NACKs are concatenated, and the first ACK/NACKs and the second ACK/NACKs are transmitted to the base station apparatus using one physical uplink channel. | 06-20-2013 |
20130242922 | WIRELESS COMMUNICATION SYSTEM, MOBILE STATION DEVICE, BASE STATION DEVICE, WIRELESS COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - A mobile station device efficiently transmits an ACK/NACK of more than 11 bits on a physical uplink channel. A mobile station device for communicating with a base station device divides a plurality of ACKs/NACKs indicating success or failure of decoding of a plurality of pieces of uplink data received from the base station device, separately encodes the divided ACKs/NACKs, and changes a method for concatenating the encoded bits of the separately encoded ACKs/NACKs in accordance with whether the ACKs/NACKs are to be transmitted on a physical uplink control channel or a physical uplink shared channel. | 09-19-2013 |
20130265962 | MOBILE STATION APPARATUS, BASE STATION APPARATUS, METHOD AND INTEGRATED CIRCUIT - To provide a mobile station apparatus, a base station apparatus, a method and an integrated circuit which are capable of dissolving complexity of setting by the base station apparatus and performing efficient scheduling by improving the orthogonality of resources of a reference signal for every antenna. A mobile station apparatus which transmits a sounding reference signal to a base station apparatus using a plurality of antenna ports, wherein based on one value set specifically to a mobile station apparatus by a parameter notified of by a higher layer from the base station apparatus, a cyclic shift applied to a sounding reference signal corresponding to the plurality of antenna ports is determined. | 10-10-2013 |
20130265963 | MOBILE STATION DEVICE, BASE STATION DEVICE, WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - A mobile station device executes processing on uplink control information by effectively using uplink resources when transmitting the uplink control information. The mobile station device generates a plurality of ACK/NACK sequences by interleaving and dividing ACKs/NACKs for a plurality of cells in a plurality of subframes, and separately encodes the plurality of ACK/NACK sequences. Also, the mobile station device interleaves a plurality of ACKs/NACKs and a scheduling request together. | 10-10-2013 |
20140036850 | WIRELESS COMMUNICATION SYSTEM, MOBILE STATION APPARATUS AND BASE STATION APPARATUS - Regarding an uplink demodulation reference signal to which a cyclic shift and an orthogonal cover code is applied, IFDM is applied to the uplink demodulation reference signal while retaining the number of bits of control information that specifies a cyclic shift and an orthogonal cover code transmitted from a base station apparatus to a mobile station apparatus. A subcarrier offset and a subcarrier interval based on IFDM are uniquely determined in accordance with the cyclic shift and the orthogonal cover code of the uplink demodulation reference signal, reported from the base station apparatus to the mobile station apparatus. | 02-06-2014 |
20140153536 | COMMUNICATION SYSTEM, TERMINAL, BASE STATION, AND COMMUNICATION METHOD - There are provided a base station, a terminal, a communication system, and a communication method in a wireless communication system in which a base station and a terminal | 06-05-2014 |
20140169209 | COMMUNICATION SYSTEM, TERMINAL, AND BASE STATION - There are provided a base station, a terminal, and a communication system in a wireless communication system in which a base station and a terminal communicate with each other, in which the base station and the terminal can efficiently perform communication. The base station includes a higher layer processing unit | 06-19-2014 |
20140169321 | COMMUNICATION SYSTEM, TERMINAL, AND BASE STATION - There are provided a base station, a terminal, and a communication system in a wireless communication system in which a base station and a terminal communicate with each other, in which the base station and the terminal can efficiently perform communication. The terminal includes a higher layer processing unit | 06-19-2014 |
20140169322 | TERMINAL, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - There are provided a base station, a terminal, a communication system, and a communication method in a communication system in which a base station | 06-19-2014 |
20140177531 | COMMUNICATION SYSTEM, TERMINAL, AND BASE STATION - There are provided a base station, a terminal, and a communication system in a wireless communication system in which a base station and a terminal communicate with each other, in which the base station and the terminal can efficiently perform communication. The communication system includes a higher layer processing unit | 06-26-2014 |
20140177584 | TERMINAL, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - A base station, a terminal, a communication system and a communication method are provided. The communication system comprises a base station | 06-26-2014 |
20140221038 | MOBILE STATION DEVICE, COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - In a system including at least one base station device, the base station device efficiently controls uplink signals. A mobile station device includes a path loss calculation unit | 08-07-2014 |
20140241301 | MOBILE STATION APPARATUS, COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - In a communication system including multiple mobile station apparatuses and at least one base station apparatus, the base station apparatus efficiently controls transmission of an uplink signal to the mobile station apparatuses. A path loss calculator calculates path loss on the basis of a reference signal received by a reception processing unit. A transmit power setter sets desired transmit power of an uplink signal using the path loss calculated by the path loss calculator. Additionally, a power head room controller generates power head room that is information concerning a margin of the transmit power using the desired transmit power set in the transmit power setter to control transmission of the power head room. The power head room controller determines to transmit the power head room upon switching of a kind of the reference signal used in the calculation in the path loss calculator. | 08-28-2014 |
20150063272 | MOBILE STATION APPARATUS, BASE STATION APPARATUS, RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - In a radio communication system using OCC for DMRS, a base station apparatus correctly receives PUSCH. If a first mode is set in which a demodulation reference signal of a physical uplink shared channel is multiplied by an orthogonal code determined in advance or if a temporary C-RNTI was used for a transmission of downlink control information, the demodulation reference signal of the physical uplink shared channel is multiplied by the orthogonal code determined in advance, and if a second mode is set in which the demodulation reference signal of the physical uplink shared channel is multiplied by an orthogonal code determined on the basis of cyclic shift information in the downlink control information and moreover, if an RNTI other than the temporary C-RNTI was used for the transmission of the downlink control information, the demodulation reference signal of the physical uplink shared channel is multiplied by the orthogonal code determined on the basis of the cyclic shift information in the downlink control information. | 03-05-2015 |