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 |
20120172048 | WIRELESS COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS, AND RANDOM ACCESS METHOD - A random access instructed by a base station apparatus and having a small delay is enabled in Advanced-EUTRA system. Upon detection of control data in any one of a plurality of component carriers, component carrier information, a preamble number, and random access channel information are extracted from the control data, and if the extracted information indicates dedicated preamble transmission, a random access channel position to be used is selected from information on random access of a component carrier specified in the component carrier information and the random access channel information, a random access preamble is generated from the information on random access and the dedicated preamble number, and the random access preamble is transmitted at the random access channel position. | 07-05-2012 |
20120182910 | WIRELESS COMMUNICATION SYSTEM, MOBILE STATION APPARATUS, BASE STATION APPARATUS, COMMUNICATION CONTROL METHOD AND INTEGRATED CIRCUIT - To efficiently control channel quality indicators CQIs in response to a plurality of downlink component frequency bands in a wireless communication system using a plurality of component frequency bands, and enable a mobile station apparatus to suitably transmit signals including the channel quality indicators CQIs, the mobile station apparatus is provided with an uplink control data generation part | 07-19-2012 |
20120182949 | MOBILE STATION APPARATUS AND COMMUNICATION METHOD - A mobile station apparatus which communicates with a base station apparatus using a plurality of component carriers, transmits uplink control information to the base station apparatus using a single physical uplink control channel in a plurality of uplink component carriers, regardless of whether or not a plurality of physical uplink control channels is assigned by the base station apparatus and, when each physical uplink shared channel of the plurality of uplink component carriers including a first uplink component carrier on which the uplink control information is transmitted using the physical uplink control channel is assigned in the same subframe by the base station apparatus, transmits the uplink control information to the base station apparatus using the physical uplink shared channel of the first uplink component carrier. | 07-19-2012 |
20120188958 | WIRELESS COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS, AND WIRELESS COMMUNICATION METHOD - A mobile station apparatus determines an uplink carrier component to which a physical downlink control channel instructing to start random access procedure corresponds. A wireless communication system includes a base station apparatus and a mobile station apparatus that communicate with each other using a plurality of component carriers. The base station apparatus includes a random access controller that preliminarily allocates random access resources corresponding to a specific downlink component. A transmission processor transmits control information instructing to start the random access procedure. The mobile station apparatus includes a random access processor that, upon receipt of the control information instructing to start the random access procedure, starts the random access procedure by means of the random access resource corresponding to a specific downlink component carrier preliminarily allocated by the base station apparatus. | 07-26-2012 |
20120188961 | MOBILE STATION APPARATUS, RADIO COMMUNICATION METHOD, AND CONTROL PROGRAM FOR MOBILE STATION APPARATUS - A plurality of uplink and downlink component carriers are allocated from a base station apparatus, a common search space of a specific downlink component carrier of the allocated downlink component carriers is monitored, and random access processing is started in any one of the uplink component carriers. A mobile station apparatus applied to a communication system allocates to any mobile station apparatus the plurality of downlink component carriers including the common search space to be monitored together with any other mobile station apparatus. In performing random access to said base station apparatus, the mobile station apparatus extends a monitored object of a physical downlink control channel from a first common search space of the downlink component carrier to a second common search space of any downlink component carrier other than the downlink component carrier including the first common search space. | 07-26-2012 |
20120281576 | MOBILE STATION APPARATUS, BASE STATION APPARATUS AND PROCESSING METHOD - A communication system, a mobile station apparatus, a base station apparatus, and a processing method are provided that can perform decoding processing of a PDCCH related to a search space efficiently, and can perform communication promptly. A mobile station apparatus for performing communication with a base station apparatus in a mobile communication system: perform monitoring of a physical downlink control channel in an extension search space in accordance with an instruction from the base station apparatus. | 11-08-2012 |
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 |
20120281654 | MOBILE COMMUNICATION METHOD AND SYSTEM FOR SOUNDING REFERENCE SIGNAL TRANSMISSION, AND BASE STATION, USER EQUIPMENT AND INTEGRATED CIRCUIT THEREIN - A communication method for sounding reference signal transmission is provided. A communication method of a user equipment in a mobile communication system in which a base station apparatus schedules a physical uplink shared channel in an uplink component carrier by using a downlink control information format, the method comprising: receiving, from the base station apparatus, the downlink control information format including first information which instructs to transmit sounding reference signal and second information which indicates the uplink component carrier in which the physical uplink shared channel is scheduled by the downlink control information format, transmitting, to the base station apparatus, sounding reference signal on the uplink component carrier indicated by the second information in case that the first information is detected. | 11-08-2012 |
20120294269 | PROCESSING METHOD AND MOBILE STATION DEVICE - A communication system, a mobile station device, a base station device, and a processing method for carrying out processing involved in introducing a contention based uplink efficiently, and carrying out communication promptly, are provided. A mobile station device communicating with a base station device in a mobile communication system includes a buffer for a contention based uplink and a buffer for a regular uplink HARQ, as a buffer for a HARQ. | 11-22-2012 |
20120294270 | PROCESSING METHOD AND MOBILE STATION DEVICE - A communication system, a mobile station device, a base station device, and a processing method for carrying out processing involved in introducing a contention based uplink efficiently, and carrying out communication promptly are provided. A mobile station device communicating with a base station device in a mobile communication system obtains an uplink grant from the base station device, and when a timer for prohibiting transmission of a scheduling request is not running, uses a contention based uplink when the uplink grant is a grant for a contention based uplink, and when the timer for prohibiting transmission of a scheduling request is running, does not use the contention based uplink when the uplink grant is a grant for a contention based uplink. | 11-22-2012 |
20120307767 | PROCESSING METHOD AND MOBILE STATION DEVICE - A communication system, a mobile station device, a base station device, and a processing method for carrying out processing involved in introducing a contention based uplink efficiently, and carrying out communication promptly are provided. A mobile station device communicating with a base station device in a mobile communication system obtains an uplink grant from the base station device, and when the uplink grant is a normal grant, cancels a pending scheduling request, and when the uplink grant is a grant for a contention based uplink, not canceling the pending scheduling request. | 12-06-2012 |
20120327876 | RADIO COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS AND RADIO COMMUNICATION METHOD - A reference signal for channel estimation is transmitted a predetermined number of times with one signaling. In a radio communication system including a base station apparatus and a mobile station apparatus, the base station apparatus transmits a radio resource control signal including information indicating a number of times of transmission of the reference signal for channel estimation to the mobile station apparatus, and transmits a physical downlink control channel including information indicating transmission of the reference signal to the mobile station apparatus. The mobile station apparatus transmits the reference signal to the base station apparatus until the number of transmissions of the reference signal reaches the number of times of transmission, according to information, which is included in the radio resource control signal, when the information indicating transmission of the reference signal is included in the physical downlink control channel. | 12-27-2012 |
20130010721 | COMMUNICATION METHOD, MOBILE STATION APPARATUS, BASE STATION APPARATUS AND MOBILE COMMUNICATION SYSTEM - In case that a base station apparatus and a mobile station apparatus use a plurality of component carriers to communicate with each other, they effectively transmit and receive HARQ control information. At least one physical downlink control channel on at least a first downlink component carrier attempts to be decoded, and, in case that one physical downlink control channel corresponding to one physical downlink shared channel transmission on a second downlink component carrier other than the first downlink component carrier is detected, the HARQ control information is transmitted to the base station apparatus using a first physical uplink control channel resource whereas, in case that one physical downlink control channel corresponding to one physical downlink shared channel transmission on the first downlink component carrier is detected, the HARQ control information is transmitted to the base station apparatus using a second physical uplink control channel resource. | 01-10-2013 |
20130010722 | MOBILE STATION DEVICE, RADIO COMMUNICATION METHOD AND CIRCUIT DEVICE - A mobile station device communicates with a base station device. The mobile station device—includes a reception unit receiving downlink data and a downlink control channel including information indicating a radio resource for contention based signal transmission, and a transmission unit-transmitting at least one of ACK/NACK for the downlink data and a contention based signal when the ACK/NACK and the contention based signal collide with each other in the same uplink time frame. | 01-10-2013 |
20130010723 | RADIO COMMUNICATION SYSTEM, MOBILE STATION APPARATUS, RADIO COMMUNICATION METHOD AND INTEGRATED CIRCUIT - For efficient transmission of a first reference signal and a second reference signal for channel estimation without deteriorating a channel estimation accuracy, and without deteriorating a communication quality, a mobile station apparatus, in the case where a transmission of the first reference signal and a transmission of the second reference signal coincide in the same timing (Step S | 01-10-2013 |
20130012252 | RADIO COMMUNICATION SYSTEM, MOBILE STATION APPARATUS, BASE STATION APPARATUS, RADIO COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - Optimal transmit power control is performed on each of a periodic SRS and an aperiodic SRS. In a radio communication system in which a mobile station apparatus | 01-10-2013 |
20130034073 | COMMUNICATION METHOD AND SYSTEM FOR PHYSICAL UPLINK CONTROL CHANNEL RESOURCE ASSIGNMENT, AND BASE STATION, USER EQUIPMENT AND INTEGRATED CIRCUIT THEREIN - A communication system in which a base station apparatus and a user equipment communicate on multiple component carriers comprising primary component carrier and non-primary component carrier, the base station apparatus, transmits, to the user equipment, four indices for physical uplink control channel resource using higher layer signaling, transmits, to the user equipment, an index indicator using transmission power control command for physical uplink control channel field, the user equipment, determines an index among the four indices according to the index indicator, transmits, to the base station apparatus, HARQ-ACK/NACK using physical uplink control channel resource the index, wherein the transmission power control command for physical uplink control channel field is included in a downlink control information format, which is used to schedule a physical downlink shared channel on the non-primary component carrier. | 02-07-2013 |
20130034089 | MOBILE STATION APPARATUS, COMMUNICATION METHOD, INTEGRATED CIRCUIT, RADIO COMMUNICATION SYSTEM, AND CONTROL PROGRAM - In a radio communication system including a plurality of mobile station apparatuses and a base station apparatus, a physical uplink reference signal and a physical uplink control channel signal are efficiently controlled and the mobile station apparatus appropriately transmits a signal. The mobile station apparatus includes: a radio resource control unit | 02-07-2013 |
20130044706 | WIRELESS COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS, WIRELESS COMMUNICATION METHOD AND INTEGRATED CIRCUIT - When a common search space and a user equipment-specific search space overlap with each other, and bit numbers of DCI formats transmitted in the common search space and the user equipment-specific search space, respectively are the same as each other, a mobile station apparatus identifies a type of the DCI format. When the common search space and the user equipment-specific search space overlap with each other, and a bit number of a DCI format allocated in the common search space and a bit number of a DCI format allocated in the user equipment-specific search space are the same as each other, a base station apparatus does not allocate the DCI format allocated in the user equipment-specific search space in the overlapped space, and a mobile station apparatus performs blind decoding only of the DCI format allocated in the common search space in the overlapped space. | 02-21-2013 |
20130044711 | MOBILE COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS AND COMMUNICATION METHOD - In a system where two or more bands the channel state information of which is to be measured can be configured, measurement target of the channel state or the transmission resource is flexibly configured. In a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers configured by the base station apparatus, the base station apparatus transmits, to the mobile station apparatus, a downlink control information format which is used for scheduling of a physical uplink shared channel on a certain uplink component carrier and, the mobile station apparatus transmits, to the base station apparatus, the channel state information for a downlink component carrier corresponding to the certain uplink component carrier in case that downlink control information included in the downlink control information format is set to request a transmission of the channel state information. | 02-21-2013 |
20130051341 | WIRELESS COMMUNICATION METHOD, MOBILE STATION APPARATUS, WIRELESS COMMUNICATION SYSTEM AND INTEGRATED CIRCUIT - To perform control of PUSCH retransmission efficiently in a wireless communication system where a mobile station apparatus and a base station apparatus communicate with each other using a plurality of downlink component carriers. In a mobile station apparatus which communicates with a base station apparatus using a plurality of downlink component carriers and a plurality of uplink component carriers, in case that the downlink component carrier corresponding to the uplink component carrier is set not to be used for downlink communication, the mobile station apparatus flushes HARQ buffers of the uplink component carrier associated with the downlink component carrier set not to be used for downlink communication. | 02-28-2013 |
20130102320 | RADIO COMMUNICATION SYSTEM, BASE STATION DEVICE, MOBILE STATION DEVICE, RADIO COMMUNICATION METHOD, AND CIRCUIT DEVICE - Contention based uplink transmission is efficiently performed. A scheduling unit selects, when uplink grant includes C-RNTI allocated to its device, the whole of radio resources indicated by this uplink grant. When uplink grant includes CB-RNTI, the scheduling unit randomly selects one radio resource from multiple radio resources indicated by this uplink grant. The scheduling unit generates control information for controlling a transmission unit so that PUSCH is multiplexed on the selected radio resource, and outputs it to a control unit. When blind decoding of multiple uplink grants including CB-RNTI has successfully been performed, the scheduling unit randomly selects one radio resource from the whole of multiple radio resources indicated by multiple uplink grants. The scheduling unit generates control information for controlling the transmission unit so that PUSCH is multiplexed on the selected radio resource, and outputs it to the control unit. | 04-25-2013 |
20130107835 | MOBILE COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS AND COMMUNICATION METHOD | 05-02-2013 |
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 |
20130128854 | MOBILE STATION DEVICE COMMUNICATION SYSTEM, COMMUNICATION METHOD, INTEGRATED CIRCUIT, AND CIRCUIT DEVICE - A mobile station device includes: a management unit managing generation of uplink control information; a transmission power parameter setting unit setting a value of a parameter relevant to transmission power in accordance with the number of information bits of receipt acknowledgement and scheduling request, when the management unit generates the receipt acknowledgement which is uplink control information indicating positive or negative acknowledgement for downlink data and the scheduling request which is uplink control information indicating whether to request resource allocation; and a transmission processing unit controlling, by means of the parameter value set by the transmission power parameter setting unit, the transmission power for a physical uplink control channel used for transmitting a signal generated from the information bits of the receipt acknowledgement and the scheduling request, and transmitting the signal to a base station device using the physical uplink control channel with the controlled transmission power. | 05-23-2013 |
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 |
20130163571 | MOBILE COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS AND COMMUNICATION METHOD - To provide a mobile communication system and communication method for efficient scheduling to be performed when a base station apparatus notifies a mobile station apparatus of a plurality of downlink control information formats in the same subframe and/or for some particular time period, in a mobile communication system comprised of a base station apparatus and a mobile station apparatus, the base station apparatus notifies the mobile station apparatus of a plurality of downlink control information formats including at least one downlink control information format including instructions for transmission of a sounding reference signal and a parameter in the same subframe, and the mobile station apparatus transmits a sounding reference signal set based on the parameter to the base station apparatus when among the plurality of downlink control information formats, a predetermined downlink control information format includes instructions for transmission of a sounding reference signal and the parameter. | 06-27-2013 |
20130188589 | MOBILE STATION APPARATUS, COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - A mobile station apparatus controls the transmission method of uplink signals to efficiently transmit uplink control information, while avoiding increase of overhead of the control information. The mobile station apparatus has a reception processing unit | 07-25-2013 |
20130188590 | MOBILE COMMUNICATION SYSTEM, MOBILE STATION APPARATUS, BASE STATION APPARATUS, COMMUNICATION METHOD AND INTEGRATED CIRCUIT - A mobile communication system and a communication method are provided in which, a base station apparatus can efficiently allocate, to a mobile station apparatus, an uplink resource for transmitting information indicating an ACK/NACK for downlink data. The mobile station apparatus that communicates with the base station apparatus, comprising: a scheduling unit configured to determine two physical uplink control channel resources for a transmission using a physical downlink shared channel in a case that a downlink transmission mode that supports the transmission of up to two downlink transport blocks using the physical downlink shared channel is configured for the secondary cell, and a physical downlink control channel that indicates the transmission using the physical downlink shared channel on the secondary cell is detected on the secondary cell. | 07-25-2013 |
20130215838 | MOBILE COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS AND COMMUNICATION METHOD - Based on a sounding reference signal, a base station apparatus performs efficient scheduling. The base station apparatus includes information for requesting the transmission of the sounding reference signal in a first downlink control information format or a second downlink control information format, and transmits the information to the mobile station apparatus, the mobile station apparatus transmits, based on detection of the information, the sounding reference signal to the base station apparatus, and a first parameter used for the transmission of the sounding reference signal based on the detection of the information included in the first downlink control information format and a second parameter used for the transmission of the sounding reference signal based on the detection of the information included in the second downlink control information format are individually set by a signal of a higher layer transmitted from the base station apparatus. | 08-22-2013 |
20130215848 | BASE STATION APPARATUS, MOBILE STATION APPARATUS, MOBILE COMMUNICATION SYSTEM, COMMUNICATION METHOD, CONTROL PROGRAM, AND INTEGRATED CIRCUIT - In a case where a transmission timing in a mobile station apparatus varies among individual cells, efficient random access can be performed. A base station apparatus which is applied to a mobile communication system in which random access from a mobile station apparatus to a base station apparatus is executed allocates a plurality of cells to the mobile station apparatus, groups the cells into groups in each of which cells have an identical transmission timing in the mobile station apparatus, notifies the mobile station apparatus of transmission timings determined for the individual groups, permits the mobile station apparatus to execute random access using any one of the cells included in the groups, and notifies the mobile station apparatus of random access execution information about the cell for which random access is permitted. | 08-22-2013 |
20130215862 | MOBILE STATION DEVICE, RADIO COMMUNICATION METHOD AND INTEGRATED CIRCUIT - In a mobile station device capable of transmitting up to a predetermined number of transport blocks to a base station device on a single physical uplink shared channel, an object is to efficiently perform HARQ in case that the mobile station device receives an uplink grant that disables a part of uplink data. The mobile station device receives downlink control information transmitted by the base station device and used for scheduling the physical uplink shared channel. In case that the downlink control information indicates that a specific transport block is disabled, the mobile station device sets ACK for a HARQ process corresponding to the specific transport block. | 08-22-2013 |
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 |
20130244587 | TERMINAL APPARATUS, BASE-STATION APPARATUS, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - A base-station apparatus ( | 09-19-2013 |
20130258978 | MOBILE STATION APPARATUS, PROCESSING METHOD, AND INTEGRATED CIRCUIT - A mobile station apparatus efficiently switches coding schemes when coding both information indicating an ACK/NACK and first control information. A mobile station apparatus | 10-03-2013 |
20130259011 | MOBILE STATION DEVICE, COMMUNICATION SYSTEM, COMMUNICATION METHOD AND INTEGRATED CIRCUIT - A mobile station device set to communicate with a base station device over a plurality of subframes using a plurality of cells is provided. When ACK/NACK for reception of data transmitted from the base station device is to be transmitted to the base station device using a PUCCH and the PUCCH is set to select one resource from a plurality of PUCCH candidate resources to transmit with prescribed transmit power using the selected resource, the mobile station device determines a parameter value related to prescribed transmit power in accordance with the number of cells used for data communication in the plurality of subframes. | 10-03-2013 |
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 |
20130279486 | MOBILE STATION APPARATUS, BASE STATION APPARATUS, WIRELESS COMMUNICATION SYSTEM, CONTROL METHOD, AND INTEGRATED CIRCUIT - In a mobile station that performs communication with a base station device via a plurality of cells, the plurality of cells are grouped into a first group constituted by cells having an uplink transmission timing that is the same as that of one primary cell and a second group constituted by one or more cells having an uplink transmission timing that is different from that of the primary cell. The uplink transmission timings are each managed using a corresponding transmission timing timer for each of the groups. In a case where a transmission timing timer for the first group has expired, the mobile station stops all uplink transmissions in the plurality of cells. In a case where a transmission timing timer for the second group has expired, the mobile station stops uplink transmissions in the cells constituting the second group for which the transmission timing timer has expired. | 10-24-2013 |
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 |
20140086193 | WIRELESS COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS, WIRELESS COMMUNICATION METHOD AND INTEGRATED CIRCUIT - In a case that a mobile station apparatus transmits a physical random access channel to a base station apparatus in a plurality of cells, it is possible to efficiently control transmission power of a physical uplink channel. A mobile station apparatus which performs a random access procedure with a base station apparatus in a plurality of cells, receives downlink control information including a transmission power control command for a physical uplink control channel from the base station apparatus, calculates a parameter by accumulating a value indicated by the transmission power control command, sets transmission power of a physical uplink control channel by using the parameter, transmits the physical uplink control channel to the base station apparatus in a specific cell, and resets accumulated parameter, when a random access response for the specific cell is received from the base station apparatus. | 03-27-2014 |
20140133452 | TERMINAL, BASE STATION, COMMUNICATIONS SYSTEM, AND COMMUNICATION METHOD - A terminal that communicates with a base station monitors a physical downlink control channel allocated in a physical downlink control channel region and an enhanced physical downlink control channel allocated in a physical downlink shared channel region different from the physical downlink control channel region. If the enhanced physical downlink control channel is detected, the terminal reports response information via a physical uplink control channel resource corresponding to the resource in which the enhanced physical downlink control channel was detected. | 05-15-2014 |
20140153532 | TERMINAL, BASE STATION, COMMUNICATIONS SYSTEM, AND COMMUNICATION METHOD - A terminal that communicates with a base station monitors a physical downlink control channel allocated in a physical downlink control channel region and an enhanced physical downlink control channel allocated in a physical downlink shared channel region different from the physical downlink control channel region. If the physical downlink control channel is detected, the terminal reports response information via a physical uplink control channel resource corresponding to the resource in which the physical downlink control channel was detected. If the enhanced physical downlink control channel is detected, the terminal reports via a prescribed physical uplink control channel resource. | 06-05-2014 |
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 |
20140198747 | COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS, AND COMMUNICATION METHOD - Provided are a communication system, a base station apparatus, a mobile station apparatus, and a communication method for reducing interference between uncoordinated adjacent cells. The communication system of the present invention comprises a base station apparatus and a mobile station apparatus. The base station apparatus notifies the mobile station apparatus of a downlink control information format, the downlink control information format including resource allocation information that dictates switching of resource allocation of an uplink demodulation reference signal localized resource allocation and distributed resource allocation, and a frequency offset of the distributed resource allocation of the uplink demodulation reference signal specific to the mobile station apparatus. The mobile station apparatus determines the resource allocation of the uplink demodulation reference signal in accordance with the frequency offset of the mobile station apparatus when information comprised in the downlink control information format dictates the distributed resource allocation in the resource allocation information, and transmits the uplink demodulation reference signal to the base station apparatus. | 07-17-2014 |
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 |
20140247796 | TERMINAL APPARATUS, COMMUNICATION SYSTEM, BASE STATION APPARATUS, AND COMMUNICATION METHOD - In a communication system in which a base station apparatus and a terminal apparatus communicate with each other, a base station apparatus, a terminal apparatus, and a communication system with which the base station apparatus and the terminal apparatus can efficiently communicate with each other are provided. The terminal apparatus that communicates with the base station apparatus includes a radio resource control section | 09-04-2014 |
20140247799 | MOBILE STATION APPARATUS, BASE STATION APPARATUS, WIRELESS COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - To make a mobile station apparatus efficiently generate a base sequence. In a mobile station apparatus that generates a sequence for a demodulation reference signal on the basis of at least a sequence group number and transmits to a base station apparatus the demodulation reference signal together with a physical uplink shared channel used for transmission of a transport block, the mobile station apparatus receives information indicating a value of a parameter relating to the sequence from the base station apparatus, and determines the sequence group number without using the value of the parameter in a case where the mobile station apparatus performs transmission of the transport block on the physical uplink shared channel as part of a contention based random access procedure. | 09-04-2014 |
20140293946 | BASE STATION DEVICE, MOBILE STATION DEVICE, WIRELESS COMMUNICATION METHOD, WIRELESS COMMUNICATION SYSTEM, AND INTEGRATED CIRCUIT - A base station device that communicates with a mobile station device is provided. The base station device uses a physical broadcast channel to transmit information instructing the mobile station device to monitor a common search space or an enhanced common search space for a physical downlink channel. | 10-02-2014 |
20140328304 | MOBILE STATION DEVICE, BASE STATION DEVICE, WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - If a plurality of channel state information reports corresponding to different cells have collided (Yes in step S | 11-06-2014 |
20140329553 | MOBILE STATION APPARATUS, COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - A base station apparatus efficiently controls transmission of an uplink signal to a mobile station apparatus. A transmission power setting unit sets transmission power for a physical uplink shared channel using one of a plurality of calculated path losses. A power headroom generation unit generates a first power headroom and a second power headroom, wherein the first power headroom is information associated with a margin of transmission power and produced using a band width of a resource allocated for the physical uplink shared channel and the path loss used in the setting of the transmission power for the physical uplink shared channel, and the second power headroom is information associated with a margin of transmission power and produced, without depending on the band width of the resource allocated for the physical uplink shared channel, using a path loss that is one of the plurality of calculated path losses but that is not used in the setting of the transmission power for the physical uplink shared channel. | 11-06-2014 |
20140362797 | MOBILE COMMUNICATION SYSTEM, BASE STATION DEVICE, MOBILE STATION DEVICE, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - A mobile communication system, a base station device, a mobile station device, a communication method, and an integrated circuit that each can efficiently transmit HARQ-ACK and/or channel state information are provided. | 12-11-2014 |
20150016385 | TERMINAL DEVICE, BASE STATION DEVICE, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - According to the present invention, there is provided a base station device, a terminal device, a communication method, an integrated circuit, and a radio communication system enabling a base station and a terminal device to decide a parameter related to a reference signal and efficiently communicate. A terminal device receives a reference signal associated with a physical downlink shared channel, the terminal device including means that receives the reference signal generated on the basis of a physical layer cell identity in a case in which a predetermined downlink control information format is used for scheduling of the physical downlink shared channel, and means that receives the reference signal generated on the basis of a parameter configured by a higher layer in a case in which a downlink control information format other than the predetermined downlink control information format is used for scheduling of the physical downlink shared channel. | 01-15-2015 |
20150023282 | TERMINAL DEVICE, BASE STATION DEVICE, AND INTEGRATED CIRCUIT - There are provided a terminal device, a base station device, and an integrated circuit that enable a base station device and a terminal device to determine parameters related to uplink signals or uplink reference signals and to perform efficient communication. A terminal device that transmits a demodulation reference signal associated with a physical uplink shared channel to a base station device includes determining a base sequence number on the basis of a value of a parameter configured by a higher layer, determining the base sequence number on the basis of a physical layer cell identity, and generating a sequence of the demodulation reference signal on the basis of the base sequence number, wherein the base sequence number is determined on the basis of the physical layer cell identity in a case where a transmission on the physical uplink shared channel corresponding to a downlink control information format to which CRC parity bits scrambled by a Temporary C-RNTI are attached is performed in a random access procedure. | 01-22-2015 |
20150029929 | MOBILE STATION DEVICE, BASE STATION DEVICE, WIRELESS COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - A mobile station device and a base station device correctly communicate using E-PHICH. The mobile station device receives information indicating a subframe to be reserved for transmitting a HARQ feedback using an enhanced physical HARQ indicator channel, transmits a transport block by using a physical uplink shared channel, and if a time in which the HARQ feedback for the transmission of the transport block is received by using the enhanced physical HARQ indicator channel is a subframe excluding the subframe indicated by the information, when the HARQ feedback for the transmission of the transport block is received, the mobile station device sets a state variable managed by a HARQ process corresponding to the transport block to acknowledgement (ACK). | 01-29-2015 |
20150036525 | TERMINAL APPARATUS, BASE STATION APPARATUS, AND INTEGRATED CIRCUIT - A terminal apparatus, a base station apparatus, a communication method, an integrated circuit, and a radio communication system are provided that enable a base station apparatus and a terminal apparatus to determine parameters relating to an uplink reference signal and efficiently communicate with each other. A terminal apparatus that transmits a demodulation reference signal, the terminal apparatus comprising: means for receiving a cell-specific parameter used for enabling or disabling a sequence group hopping, means for a user-equipment-specific parameter used for disabling the sequence group hopping, and means for generating a sequence of the demodulation reference signal on the basis of the enabled or disabled sequence group hopping, wherein, in a case that a transmission on the physical uplink shared channel corresponding to a downlink control information format to which CRC parity bits scrambled by a temporary C-RNTI are attached, the sequence group hopping is enabled or disabled on the basis of the cell-specific parameter. | 02-05-2015 |
20150043501 | MOBILE COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS AND COMMUNICATION METHOD - Based on a sounding reference signal, a base station apparatus performs efficient scheduling. The base station apparatus includes information for requesting the transmission of the sounding reference signal in a first downlink control information format or a second downlink control information format, and transmits the information to the mobile station apparatus, the mobile station apparatus transmits, based on detection of the information, the sounding reference signal to the base station apparatus, and a first parameter used for the transmission of the sounding reference signal based on the detection of the information included in the first downlink control information format and a second parameter used for the transmission of the sounding reference signal based on the detection of the information included in the second downlink control information format are individually set by a signal of a higher layer transmitted from the base station apparatus. | 02-12-2015 |
20150049695 | TERMINAL DEVICE, BASE STATION DEVICE, AND INTEGRATED CIRCUIT - There are provided a terminal device, a base station device, a communication method, an integrated circuit, and a wireless communication system that enable a base station device and a terminal device to determine parameters related to uplink signals or uplink reference signals and to perform efficient communication. In a terminal device that transmits a demodulation reference signal, a sequence group number is determined on the basis of a value of a parameter configured by a higher layer in a case where a transmission on a physical uplink shared channel is performed in accordance with a downlink control information format to which CRC parity bits scrambled by a C-RNTI are attached, which is transmitted on an enhanced physical downlink control channel, and the sequence group number is determined on the basis of a physical layer cell identity in a case where a transmission on the physical uplink shared channel is performed in accordance with a downlink control information format to which CRC parity bits scrambled by a Temporary C-RNTI are attached, which is transmitted on a physical downlink control channel. | 02-19-2015 |
20150063237 | TERMINAL DEVICE, BASE STATION DEVICE, AND INTERGRATED CIRCUIT - There are provided a terminal device, a base station device, and an integrated circuit that enable a base station device and a terminal device to determine parameters related to uplink signals or uplink reference signals and to perform efficient communication. A terminal device that transmits a demodulation reference signal associated with a physical uplink shared channel includes determining a value related to a cyclic shift on the basis of a value of a parameter configured by a higher layer, determining the value related to the cyclic shift on the basis of a physical layer cell identity, and generating a sequence of the demodulation reference signal on the basis of the value related to the cyclic shift, wherein the value related to the cyclic shift is determined on the basis of the physical layer cell identity in a case where a transmission on the physical uplink shared channel corresponding to a downlink control information format to which CRC parity bits scrambled by a Temporary C-RNTI are attached is performed. | 03-05-2015 |
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 |
20150078273 | TERMINAL DEVICE, BASE STATION DEVICE, AND INTEGRATED CIRCUIT - There are provided a terminal device, a base station device, and an integrated circuit that enable a base station device and a terminal device to determine parameters related to uplink signals or uplink reference signals and to perform efficient communication. A terminal device that transmits a demodulation reference signal associated with a physical uplink shared channel to a base station device includes determining a sequence group number on the basis of a value of a parameter configured by a higher layer, determining the sequence group number on the basis of a physical layer cell identity, and generating a sequence of the demodulation reference signal on the basis of the sequence group number, wherein the sequence group number is determined on the basis of the physical layer cell identity in a case where a transmission on the physical uplink shared channel corresponding to a downlink control information format to which CRC parity bits scrambled by a Temporary C-RNTI are attached is performed in a random access procedure. | 03-19-2015 |