| Patent application number | Description | Published |
|---|
| 20090028065 | RADIO TRANSMISSION DEVICE, AND RADIO TRANSMISSION METHOD - Provided are a radio transmission device and a radio transmission method, which prevent the deterioration of a preamble detecting performance while reducing the collision probability of a RACH. In this radio transmission device, a Signature table storage unit ( | 01-29-2009 |
| 20090040973 | RADIO COMMUNICATION SYSTEM, RADIO TRANSMISSION DEVICE, AND RACH TRANSMISSION METHOD - Disclosed are a radio communication system, a radio transmission device, a RACH transmission method capable of reducing the important information conflict probability and improve the communication system throughput in a channel transmitted at a random timing such as RACH. In a frame configuration used by the communication system, the number of slots of RACH is reduced by one and the resource for the slot is equally allocated as a resource for a pilot/UE-ID of other slot. This increases the resource amount of the pilot/UE-ID. Furthermore, the resource of the pilot/UE-ID is divided into a plurality of sub slots, which are allocated as resource blocks for respective mobile stations. | 02-12-2009 |
| 20090046694 | RADIO TRANSMISSION APPARATUS, AND RADIO TRANSMISSION METHOD - Provided is a radio transmission device, which is enabled to improve a reception quality by improving the channel estimation precision of specific data such as control data. In this device, a mapping control unit ( | 02-19-2009 |
| 20090147688 | RADIO COMMUNICATION TERMINAL DEVICE, RADIO COMMUNICATION BASE STATION DEVICE, AND RADIO COMMUNICATION METHOD - It is possible to provide a radio communication terminal device, a radio communication base station device, and a radio communication method capable of improving the resource use efficiency and the throughput in synchronous random access. A resource control unit ( | 06-11-2009 |
| 20090150740 | TRANSMITTING APPARATUS AND TRANSMITTING METHOD - A transmitting apparatus and a transmitting method wherein the systematic bit reception quality can be improved and the throughput performance can be improved. An IR parameter control part ( | 06-11-2009 |
| 20090161650 | RADIO COMMUNICATION MOBILE STATION APPARATUS AND RADIO COMMUNICATION METHOD - Provided is a mobile station capable of effectively reporting control information in RACH. In the mobile station, a signature selection unit ( | 06-25-2009 |
| 20090161789 | RADIO TRANSMITTING APPARATUS AND RADIO TRANSMITTING METHOD - Disclosed are a radio sending device and a radio sending method for improving a throughput while keeping a receiving quality. In this radio sending device, an MCS switching control unit ( | 06-25-2009 |
| 20090175377 | DIGITAL SIGNAL TRANSMITTING APPARATUS - A digital signal transmitting apparatus that prevents occurrences of highness and lowness in error tolerance due to bit positions without raising the redundancy and without retransmittal. In the digital signal transmitting apparatus, a bit interchanging part ( | 07-09-2009 |
| 20090196270 | RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD - It is possible to provide a radio transmission device and a radio transmission method capable of improving resource use efficiency without increasing or decreasing the number of Signatures. The device and the method use a Signature table having Access types, DL CQI, and Signatures uniquely correlated to one another. In this Signature table, the DL CQI level is set for each Access type in accordance with the data amount transmitted/received before a data communication start after a transmission of RACH. When the Access type is IDLE, the data amount is greater as compared to other Access types and the DL CQI is set to level | 08-06-2009 |
| 20090213813 | RADIO COMMUNICATION SYSTEM, MOBILE STATION APPARATUS, AND RACH TRANSMISSION METHOD - Provided is a mobile station device capable of performing RACH transmission with a small amount of resources. In this device, a RACH generating unit ( | 08-27-2009 |
| 20090239484 | RADIO RECEIVER APPARATUS AND RADIO TRANSMITTER APPARATUS - A radio receiver apparatus that can effectively utilize GI to improve the reception quality. In this apparatus, a data extracting part ( | 09-24-2009 |
| 20090285327 | RADIO TRANSMITTING APPARATUS, RADIO RECEIVING APPARATUS, AND PILOT GENERATING METHOD - A radio transmitter and so forth capable of improving the precision of frequency domain equalization while transmitting a longer pilot sequence. In a series of pilot blocks generated from one pilot sequence with the same length as a data sequence such as a CAZAC sequence, the transmitter defines the rear end of each pilot block as the cyclic prefix of the next pilot block and defines the rear end of the last pilot block as the cyclic prefix of the first pilot block. | 11-19-2009 |
| 20090298523 | RADIO COMMUNICATION BASE STATION APPARATUS, RADIO COMMUNICATION TERMINAL APPARATUS, AND RESOURCE BLOCK ALLOCATION METHOD - Provided is a radio communication base station device capable of obtaining a large multi-user diversity effect while suppressing increase of overhead of a communication signal. The radio communication base station device includes a scheduler ( | 12-03-2009 |
| 20090323641 | RADIO COMMUNICATION MOBILE STATION DEVICE AND MCS SELECTION METHOD - Provided is a radio communication mobile station device capable of preventing a transmission delay when a transmission data amount is increased in a radio communication system where persistent scheduling is performed. In this device, an MCS selection unit ( | 12-31-2009 |
| 20090325513 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - A wireless communication apparatus wherein the performance can be prevented from degrading due to the affection of a frequency offset, while the sequence length of Zadoff-Chu sequence (ZC sequence) being kept long. In this wireless communication apparatus, a ZC sequence generating part ( | 12-31-2009 |
| 20100002671 | RADIO TRANSMITTING APPARATUS AND RADIO TRANSMITTING METHOD - A radio transmitting apparatus and a radio transmitting method wherein the interference between codes can be reduced and the degradation of preamble detection capability can be prevented. According to these apparatus and method, a signature table storing part (103) that stores a table including a plurality of signatures obtained by classifying the magnitudes of propagation loss levels into levels in accordance with the distances from a base station, associating preamble detection window widths with those levels as classified, and by circularly shifting the pattern of a detection window signature #n corresponding to a signature #n to generate a signature #n+1. A signature selecting part ( | 01-07-2010 |
| 20100002804 | RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD - It is possible to provide a radio transmission device and a radio transmission method which can avoid degradation of a channel estimation accuracy using a reference signal formed by a ZC sequence even when the RS transmission band of a local cell is different from that of an adjacent cell. A mobile station decides a cyclic shift sequence corresponding to RB allocation information from an RS table which correlates different frequency bandwidths from a reference point of respective transmission bands to a spectrum start number of the cyclic shift sequence so as to satisfy a particular relationship based on the sequence length and transmits the decided cyclic shift sequence as RS to a base station. The base station uses the same RS table as the RS table of the mobile station and performs correlation calculation of the RS transmitted from the mobile station, thereby performing channel estimation. | 01-07-2010 |
| 20100027484 | RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD - Disclosed is a radio transmission device and a radio transmission method which reduces the RACH conflict ratio and improve the RACH detection characteristic. When the device and the method are used: as the number of signature numbers allocated for UE by the network side increases, the condition for allocating a signature by UE itself is mitigated and an expectation value which is a statistic average value of the RA quantity using the signature allocated by UE for itself is decreased; and as the number of signature numbers allocated for UE by the network side decreases, the condition for allocating a signature by UE itself is limited and an expectation value of the RA quantity using the signature allocated by UE for itself is increased. | 02-04-2010 |
| 20100039998 | SEQUENCE ALLOCATING METHOD AND SEQUENCE ALLOCATING APPARATUS - A sequence allocating method and a sequence allocating apparatus wherein in a system where a plurality of different Zadoff-Chu sequences or GCL sequences are allocated to a single cell, the arithmetic amount and circuit scale of a correlating circuit at a receiving end can be reduced. According to these method and apparatus, in ST | 02-18-2010 |
| 20100054188 | Wireless Communication Base Station Apparatus and Wireless Communication Method - A wireless communication base station apparatus capable of suppressing the waste of a signaling source in retransmittal signaling of group scheduling. In this apparatus, a multiplexing part ( | 03-04-2010 |
| 20100086082 | RADIO COMMUNICATION TERMINAL DEVICE, RADIO COMMUNICATION BASE STATION DEVICE, AND RADIO COMMUNICATION METHOD - Disclosed are a radio communication terminal device, a radio communication base station device, and a radio communication method which can prevent input of an interference wave peak into a detection window of a cyclic shift sequence allocated to a local cell and improve the channel estimation accuracy in a base station. A frequency serving as a reference is set for a transmission band width of all the cells and respective terminals in which frame synchronization is established. By using the frequency as a reference point, a phase rotation addition unit ( | 04-08-2010 |
| 20100111142 | Radio Transmission Device and Radio Transmission Method - Disclosed are a radio transmission device and a radio transmission method which can reduce a processing amount or a memory amount while maintaining the randomizing effect of other cell interference. When using as a reference signal, a ZC sequence of the sequence length uniquely correlated to a transmission bandwidth of a reference signal, as the transmission bandwidth becomes smaller and the sequence length of the ZC sequence becomes shorter, the sequence is switched at a shorter time interval and as the transmission bandwidth becomes greater and the sequence length of the ZC sequence becomes longer, the switching is performed at a longer time interval. Thus, a reference signal is generated by using the ZC sequence in accordance with the timing into which the reference signal transmission bandwidth and the sequence are switched. | 05-06-2010 |
| 20100113046 | Sequence Report Method and Sequence Report Device - Disclosed are a sequence report method and a sequence report device for reducing a signaling amount for reporting a Zadoff-Chu sequence or a GCL sequence allocated for a cell. Indexes starting at 1 are correlated to different ZC sequences and are allocated for cells so that the indexes are continuous. When such ZC sequences are reported from BS to UE, a start index indicating the start of the continuous indexes is combined with the number of allocated sequences and they are reported as allocation sequence information by a report channel. The UE and the BS share the correlation between the ZC sequences and the indexes and the UE identifies a usable sequence number according to the correlation and the allocation sequence information reported from the BS. | 05-06-2010 |
| 20100150056 | WIRELESS COMMUNICATION MOBILE STATION APPARATUS AND RACH DATA TRANSMITTING METHOD - A mobile station capable of reducing the probability of collision of RACH data in a random access. In this mobile station, a moving speed determining part ( | 06-17-2010 |
| 20100173642 | Sequence Allocating Method, Transmitting Method and Wireless Mobile Station Device - It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups. This method comprises the steps of setting a standard sequence with a standard sequence length (Nb) and a standard sequence number (rb) in a step (ST | 07-08-2010 |
| 20100188984 | RADIO TRANSMISSION APPARATUS, AND RADIO TRANSMISSION METHOD - Provided is a communication device, which is enabled to improve the throughput of a communication system by reducing the difference of a transmission power between an SCCH and an SDCH thereby to satisfy the required quality of a PAPR. In this device, an MCS selection unit ( | 07-29-2010 |
| 20100195637 | RADIO COMMUNICATION DEVICE AND SEQUENCE LENGTH ADJUSTING METHOD - Provided is a radio communication device which can prevent generation of mutual correlation peak between ZC sequences and reduce degradation of BLER characteristic of a CS-ZC sequence. In this device, a sequence length adjustment unit ( | 08-05-2010 |
| 20100195700 | Cyclic Shift Sequence Generation Method, Radio Communication Terminal Device, and Radio Communication Base Station Device - Provided is a cyclic shift sequence generation method which can prevent coming of an interference wave into a desired wave detection window even if a cyclic shift sequence has a high mutual correlation in different bandwidths, thereby improving a channel estimation accuracy in a base station. In this method, a cyclic shift sequence number to be allocated to a cell is decided in advance. Moreover, when the cyclic shift amount between cyclic shift sequences allocated in cells is Δ | 08-05-2010 |
| 20100210274 | Sequence Allocating Method and Wireless Mobile Station Device - It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups and between same sequential groups. This method comprises the steps of setting a standard sequence with a standard sequence length (Nb) and a standard sequence number (rb) in a step (ST | 08-19-2010 |
| 20100220666 | RADIO TRANSMITTING APPARATUS AND RADIO TRANSMITTING METHOD - A radio transmitting apparatus and a radio transmitting method wherein the increase of the guard time in a random access region is reduced to secure the data transmitting region of an upstream line. In this apparatus, when a received signal power estimated by a received signal power estimating part ( | 09-02-2010 |
| 20100232284 | RADIO TRANSMITTING APPARATUS AND RADIO TRANSMITTING METHOD - A radio transmitting apparatus and a radio transmitting method wherein the throughput is improved and a fast initial access processing including an RA burst is accomplished. According to these apparatus and method, a signature table storing part ( | 09-16-2010 |
| 20100254434 | RADIO COMMUNICATION DEVICE AND SEQUENCE CONTROL METHOD - Provided is a radio communication device which can reduce the affect of inter-cell interference using a small reception process amount. The radio communication device includes a sequence number setting unit ( | 10-07-2010 |
| 20100265814 | SEQUENTIAL TRANSMISSION METHOD - Provided is a sequential allocation method which can reduce mutual correlation between different sequential groups while maintaining a number of sequential groups. ST | 10-21-2010 |
| 20100272022 | SEQUENCE HOPPING METHOD, WIRELESS COMMUNICATION TERMINAL APPARATUS AND WIRELESS COMMUNICATION BASE STATION APPARATUS - A wireless communication terminal apparatus wherein the occurrences of inter-sequence interferences between a reference signal preceding a sequence hopping and a reference signal following the sequence hopping can be reduced so as to improve the randomizing effect achieved by the sequence hopping. In this apparatus, a sequence number deciding part ( | 10-28-2010 |
| 20100272028 | WIRELESS TRANSMITTER AND WIRELESS TRANSMITTING METHOD - A wireless transmitter and a wireless transmitting method in a communication system are provided with features in which a contention based channel and a scheduled channel are time-division-multiplexed, influence of interference between the channels is reduced while receiving quality is improved even if a delay in the contention based channel takes place. In the device and method, a heading portion MCS of the scheduled channel following the contention based channel is set to be more tolerant of errors (for example, QPSK, R=⅓) than the other portion MCS (for example, 16 QAM, R=⅓) and transmission is carried out. | 10-28-2010 |
| 20100284394 | RADIO COMMUNICATION TERMINAL DEVICE AND RADIO TRANSMISSION METHOD - It is possible to provide a radio communication terminal device and a radio transmission method which can improve reception performance of a CQI and a reference signal. A phase table storage unit ( | 11-11-2010 |
| 20100285755 | SEQUENCE NUMBER ESTABLISHING METHOD, WIRELESS COMMUNICATION TERMINAL APPARATUS AND WIRELESS COMMUNICATION BASE STATION APPARATUS - A wireless communication terminal apparatus wherein the occurrences of inter-sequence interferences between cells can be reduced. In this apparatus, a sequence number deciding part ( | 11-11-2010 |
| 20100290543 | RADIO TRANSMITTING APPARATUS, RADIO RECEIVING APPARATUS, AND DATA PLACING METHOD - A radio transmitting apparatus wherein when both a first data and a second data, which has a greater importance than the first data, are placed in a single block, the BER characteristic of the second data can be well maintained. In this apparatus, a modulating part ( | 11-18-2010 |
| 20110002321 | RADIO TRANSMISSION DEVICE, AND RADIO TRANSMISSION METHOD - Provided are a radio transmission device and a radio transmission method, which prevent the deterioration of a preamble detecting performance while reducing the collision probability of a RACH. In this radio transmission device, a Signature table storage unit ( | 01-06-2011 |
| 20110041045 | TRANSMITTING APPARATUS AND TRANSMITTING METHOD - A transmitting apparatus and a transmitting method wherein the systematic bit reception quality can be improved and the throughput performance can be improved. An IR parameter control part ( | 02-17-2011 |
| 20110075760 | RADIO TRANSMISSION DEVICE AND RADIO COMMUNICATION METHOD - It is possible to provide a radio transmission device and a radio communication method which can reduce inter-sequence interference and reduce the circuit size and the calculation amount even when RS is transmitted with different transmission bandwidths. Sequence length decision units ( | 03-31-2011 |
| 20110081929 | BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD - Provided is a radio communication device which can prevent interference between SRS and PUCCH when the PUCCH transmission bandwidth fluctuates and suppress degradation of CQI estimation accuracy by the band where no SRS is transmitted. The device includes: an SRS code generation unit ( | 04-07-2011 |
| 20110164519 | POWER HEAD ROOM REPORTING METHOD AND MOBILE STATION DEVICE - Disclosed are a control signal transmitting method and mobile terminal device capable of switching between a plurality of terminal communication modes having different maximum transmissible power values with a high degree of precision, while suppressing increases in signaling overhead. In a mobile station ( | 07-07-2011 |
| 20110167312 | RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD - Provided are a radio transmission device and a radio transmission method which can reduce the transmission packet collision generation ratio even when no resource allocation signal is detected in retransmission. When control information outputted from a decoding unit ( | 07-07-2011 |
