公开(公告)号：US08085724B2

公开(公告)日：2011-12-27

申请号：US12531864

申请日：2008-03-18

申请人： Daichi Imamura ,  Takashi Iwai ,  Kazunori Inogai ,  Sadaki Futagi ,  Atsushi Matsumoto

发明人： Daichi Imamura ,  Takashi Iwai ,  Kazunori Inogai ,  Sadaki Futagi ,  Atsushi Matsumoto

IPC分类号： H04W4/00

CPC分类号： H04W72/0446 ,  H04J13/0062 ,  H04J13/0066 ,  H04J13/22 ,  H04J2013/0096 ,  H04L5/0053 ,  H04W72/005 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0466

摘要： 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.

摘要翻译： 公开了一种用于减少用于报告分配给小区的Zadoff-Chu序列或GCL序列的信令量的序列报告方法和序列报告装置。 从1开始的索引与不同的ZC序列相关，并且被分配给单元，使得索引是连续的。 当从BS向UE报告这样的ZC序列时，将指示连续索引的开始的开始索引与分配的序列的数量组合，并且通过报告信道被报告为分配序列信息。 UE和BS共享ZC序列和索引之间的相关性，并且UE根据从BS报告的相关性和分配顺序信息来标识可用序列号。

公开(公告)号：US20100273494A1

公开(公告)日：2010-10-28

申请号：US12672679

申请日：2008-08-07

申请人： Takashi Iwai ,  Daichi Imamura ,  Tomofumi Takata ,  Atsushi Matsumoto ,  Yoshihiko Ogawa ,  Sadaki Futagi

发明人： Takashi Iwai ,  Daichi Imamura ,  Tomofumi Takata ,  Atsushi Matsumoto ,  Yoshihiko Ogawa ,  Sadaki Futagi

IPC分类号： H04W56/00

CPC分类号： H04L5/0053 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0082 ,  H04L27/2613 ,  H04W72/0446 ,  H04W74/0833

摘要： Provided is a radio communication base station device which can suppress a use amount of an SRS communication resource. In this device, a correlation rule setting unit (102) sets a rule for correlating a preamble with an SRS transmission time interval so that the preamble transmission time band and the SRS transmission time band are in the same transmission time band. An SRS transmission band decision unit (103) decides a time interval of a transmission time band which can transmit the SRS according to the preamble transmission time interval inputted from a preamble transmission band decision unit (101) and the correlation rule setting unit (102).

摘要翻译： 提供一种能够抑制SRS通信资源的使用量的无线通信基站装置。 在该装置中，相关规则设定部（102）将前同步码与SRS发送时间间隔相关联的规则设定为前导码发送时段和SRS发送时段处于相同的发送时间段。 SRS传输频带决定单元（103）根据从前导码传输频带决定单元（101）和相关规则设置单元（102）输入的前导码传输时间间隔来确定可以发送SRS的传输时间段的时间间隔， 。

公开(公告)号：US20100272022A1

公开(公告)日：2010-10-28

申请号：US12809925

申请日：2008-12-26

申请人： Takashi Iwai ,  Daichi Imamura ,  Yoshihiko Ogawa ,  Sadaki Futagi ,  Atsushi Matsumoto ,  Tomofumi Takata

发明人： Takashi Iwai ,  Daichi Imamura ,  Yoshihiko Ogawa ,  Sadaki Futagi ,  Atsushi Matsumoto ,  Tomofumi Takata

IPC分类号： H04W40/00

CPC分类号： H04J13/22 ,  H04B1/7143 ,  H04J13/0062

摘要： 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 (105) has a table in which the sequence lengths of Zadoff-Chu sequences used for reference signals are associated with the sequence numbers of Zadoff-Chu sequences used for reference signals of a slot #1 and with the sequence numbers of Zadoff-Chu sequences used for reference signals of a slot #2. In accordance with a sequence length according to a transmission bandwidth received from a decoding part (104), the sequence number deciding part (105) refers to the table to decide the sequence number of a Zadoff-Chu sequence. In the table of the sequence number deciding part (105), different hopping amounts are provided to a plurality of slot-#2-specific Zadoff-Chu sequences having different sequence lengths.

摘要翻译： 一种无线通信终端装置，其中可以减少序列跳变之前的参考信号与序列跳变之后的参考信号之间的序列间干扰的出现，以便改善由序列跳变获得的随机化效果。 在该装置中，序列号决定部（105）具有将用于参考信号的Zadoff-Chu序列的序列长度与用于时隙＃1的参考信号的Zadoff-Chu序列的序列号相关联的表， 其中Zadoff-Chu序列的序列号用于时隙＃2的参考信号。 根据从解码部（104）接收到的发送带宽的序列长度，序列号判定部（105）参照表来决定Zadoff-Chu序列的序列号。 在序列号决定部（105）的表中，向具有不同序列长度的多个时隙＃2特定的Zadoff-Chu序列提供不同的跳频量。

公开(公告)号：US07821991B2

公开(公告)日：2010-10-26

申请号：US12278543

申请日：2007-02-09

申请人： Takashi Iwai ,  Daichi Imamura ,  Kenichi Miyoshi ,  Sadaki Futagi ,  Atsushi Matsumoto ,  Tomofumi Takata

发明人： Takashi Iwai ,  Daichi Imamura ,  Kenichi Miyoshi ,  Sadaki Futagi ,  Atsushi Matsumoto ,  Tomofumi Takata

IPC分类号： H04W4/00

CPC分类号： H04J13/0055 ,  H04J13/0062 ,  H04J13/0066

摘要： 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 (103) divides the magnitudes of transmission loss levels into individual levels corresponding to the distances from a base station, to cause CAZAC series and circulation shift quantities to correspond to each other at the individual levels, and is provided with a table containing a plurality of Signatures created from the CAZAC series and the circulation shift quantities caused to correspond to each other. A Signature selecting unit (104) selects one of the corresponding Signatures at random from the Signature table storage unit (103), on the basis of the magnitude of the transmission loss level outputted from a transmission loss level deciding unit (102). A RACH signal generating unit (105) generates the RACH signal with the Signature selected.

摘要翻译： 提供一种无线传输装置和无线传输方法，其防止前导码检测性能的劣化，同时降低RACH的冲突概率。 在该无线发送装置中，签名表存储部（103）将传输损耗级别的大小划分为与基站的距离对应的各个级别，使得CAZAC序列和循环移位量在各个级别彼此对应 并且设置有包含从CAZAC系列创建的多个签名和导致彼此对应的循环移位量的表。 签名选择单元（104）根据从传输损失等级决定单元（102）输出的传输损耗电平的大小，从签名表存储单元（103）中随机选择一个对应的签名。 RACH信号生成单元（105）在选择了签名的情况下生成RACH信号。

公开(公告)号：US20100220666A1

公开(公告)日：2010-09-02

申请号：US12159373

申请日：2006-12-26

申请人： Daichi Imamura ,  Atsushi Matsumoto ,  Takashi Iwai ,  Sadaki Futagi ,  Tomofumi Takata

发明人： Daichi Imamura ,  Atsushi Matsumoto ,  Takashi Iwai ,  Sadaki Futagi ,  Tomofumi Takata

IPC分类号： H04W40/00 ,  H04W72/04

CPC分类号： H04W74/002 ,  H04W74/0891

摘要： 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 (205) is the higher, a RACH format selecting part (206) selects a RACH format having the longer frame length. Contrarily, when a received signal power estimated by the received signal power estimating part (205) is the lower, the RACH format selecting part (206) selects a RACH format having the shorter frame length. A RACH data part arranging part (207) appropriately selects, in accordance with the selected RACH format, top-priority information, such as terminal identifiers, priority information, such as connection request information or band assignment request information, and non-priority information and arranges RACH data parts.

摘要翻译： 一种无线发送装置和无线发送方法，其中减少随机接入区域中的保护时间的增加以确保上游线路的数据发送区域。 在该装置中，当由接收信号功率估计部（205）估计的接收信号功率越高时，RACH格式选择部（206）选择具有较长帧长的RACH格式。 相反，当由接收信号功率估计部分（205）估计的接收信号功率较低时，RACH格式选择部分（206）选择具有较短帧长的RACH格式。 RACH数据部分配置部分207根据选择的RACH格式，适当地选择诸如终端标识符等优先级信息，连接请求信息或频带分配请求信息等优先级信息，以及非优先级信息，以及 安排RACH数据部分。

公开(公告)号：US20100150056A1

公开(公告)日：2010-06-17

申请号：US12088401

申请日：2006-09-29

申请人： Takashi Iwai ,  Daichi Imamura ,  Sadaki Futagi ,  Atsushi Matsumoto

发明人： Takashi Iwai ,  Daichi Imamura ,  Sadaki Futagi ,  Atsushi Matsumoto

IPC分类号： H04W40/00

CPC分类号： H04W74/0866 ,  H04L5/023 ,  H04L27/2607 ,  H04L27/261 ,  H04W64/006

摘要： 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 (106) determines a moving speed of the mobile station (100). A frame selecting part (105) selects, based on both an arrangement pattern indicated by arrangement pattern information and the moving speed, one of frames to be used for transmission of RACH data. In accordance with a result of the selection, the frame selecting part (105) outputs the number of symbols per block to a block dividing part (113), and also outputs the number of duplications of each of blocks to a duplicating part (114). The block dividing part (113) divides the RACH data symbols, which are sequentially received from a modulating part (112), into blocks in accordance with the number of symbols per block received from the frame selecting part (105), thereby generating RACH data blocks. The duplicating part (114) duplicates the RACH data blocks in accordance with the number of duplications received from the frame selecting part (105).

摘要翻译： 能够降低随机接入中的RACH数据的冲突概率的移动站。 在该移动站中，移动速度确定部（106）确定移动台（100）的移动速度。 帧选择部（105）基于排列模式信息和移动速度指示的排列模式，选择要用于传送RACH数据的帧之一。 根据选择的结果，帧选择部分（105）将每个块的符号数输出到块分割部分（113），并且还将每个块的重复次数输出到复制部分（114） 。 根据从帧选择部（105）接收到的每个符号的符号数，块分割部（113）将从调制部（112）顺序接收的RACH数据符号分割为块，从而生成RACH数据 块。 复制部分（114）根据从帧选择部分（105）接收的重复次数复制RACH数据块。

公开(公告)号：US20100111142A1

公开(公告)日：2010-05-06

申请号：US12531247

申请日：2008-03-14

申请人： Takashi Iwai ,  Daichi Imamura ,  Sadaki Futagi ,  Yoshihiko Ogawa ,  Tomofumi Takata ,  Atsushi Matsumoto

发明人： Takashi Iwai ,  Daichi Imamura ,  Sadaki Futagi ,  Yoshihiko Ogawa ,  Tomofumi Takata ,  Atsushi Matsumoto

IPC分类号： H04B1/707

CPC分类号： H04B1/692 ,  H04J13/0048 ,  H04J13/0059 ,  H04J13/0062 ,  H04J13/0074 ,  H04J13/14

摘要： 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.

摘要翻译： 公开了一种在保持其他小区干扰的随机化效果的同时可以减少处理量或存储量的无线传输装置和无线传输方法。 当使用参考信号时，随着发送带宽变小并且ZC序列的序列长度变短，与参考信号的传输带宽唯一相关的序列长度的ZC序列变短，所以在更短的时间内切换序列 间隔，并且随着传输带宽变大并且ZC序列的序列长度变长，则以更长的时间间隔进行切换。 因此，根据参考信号传输带宽和序列被切换到的定时，通过使用ZC序列来生成参考信号。

公开(公告)号：US20100054188A1

公开(公告)日：2010-03-04

申请号：US12531862

申请日：2008-03-18

申请人： Atsushi Matsumoto ,  Sadaki Futagi ,  Daichi Imamura ,  Takashi Iwai ,  Tomofumi Takata

发明人： Atsushi Matsumoto ,  Sadaki Futagi ,  Daichi Imamura ,  Takashi Iwai ,  Tomofumi Takata

IPC分类号： H04W40/00

CPC分类号： H04L1/1829 ,  H04L1/1671 ,  H04L1/1854 ,  H04L1/1861 ,  H04L2001/0093

摘要： 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 (101) multiplexes ACK or NACK signals to be transmitted to a plurality of terminals belonging to a plurality of groups for initial transmittals, thereby generating ACK/NACK multiplexed signals. A multiplexing part (102) multiplexes the group ID of one retransmittal group associated with the plurality of groups for initial transmittals with control information directed to retransmittal terminals that are some of the plurality of initial transmittal terminals and with the ACK/NACK multiplexed signals generated by the multiplexing part (101), thereby generating a control information multiplexed signal. A mapping part (107) maps the control information multiplexed signal generated by the multiplexing part (102) into PDCCH. A radio transmitting part (110) transmits, via a transmission antenna (111), the control information multiplexed signal mapped in the PDCCH.

摘要翻译： 一种无线通信基站装置，其能够抑制组调度的重发信令中的信令源的浪费。 在该装置中，复用部（101）将要发送的ACK或NACK信号复用到属于多个用于初始发送的组的多个终端，从而生成ACK / NACK多路复用信号。 复用部分（102）将与多个组相关联的一个重传组的组ID复用到初始发送，其中控制信息指向多个初始发送终端中的一些的重发终端，以及由多个初始发送终端中的一些发送的ACK / NACK复用信号 复用部分（101），从而产生控制信息复用信号。 映射部（107）将由复用部（102）生成的控制信息复用信号映射到PDCCH。 无线发送部（110）经由发送天线（111）发送映射在PDCCH中的控制信息复用信号。

公开(公告)号：US20090028065A1

公开(公告)日：2009-01-29

申请号：US12278543

申请日：2007-02-09

申请人： Takashi Iwai ,  Daichi Imamura ,  Kenichi Miyoshi ,  Sadaki Futagi ,  Atsushi Matsumoto ,  Tomofumi Takata

发明人： Takashi Iwai ,  Daichi Imamura ,  Kenichi Miyoshi ,  Sadaki Futagi ,  Atsushi Matsumoto ,  Tomofumi Takata

IPC分类号： H04L12/26

CPC分类号： H04J13/0055 ,  H04J13/0062 ,  H04J13/0066

摘要： 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 (103) divides the magnitudes of transmission loss levels into individual levels corresponding to the distances from a base station, to cause CAZAC series and circulation shift quantities to correspond to each other at the individual levels, and is provided with a table containing a plurality of Signatures created from the CAZAC series and the circulation shift quantities caused to correspond to each other. A Signature selecting unit (104) selects one of the corresponding Signatures at random from the Signature table storage unit (103), on the basis of the magnitude of the transmission loss level outputted from a transmission loss level deciding unit (102). A RACH signal generating unit (105) generates the RACH signal with the Signature selected.

摘要翻译： 提供一种无线传输装置和无线传输方法，其防止前导码检测性能的劣化，同时降低RACH的冲突概率。 在该无线发送装置中，签名表存储部（103）将传输损耗级别的大小划分为与基站的距离对应的各个级别，使得CAZAC序列和循环移位量在各个级别彼此对应 并且设置有包含从CAZAC系列创建的多个签名和导致彼此对应的循环移位量的表。 签名选择单元（104）根据从传输损失等级决定单元（102）输出的传输损耗电平的大小，从签名表存储单元（103）中随机选择一个对应的签名。 RACH信号生成单元（105）在选择了签名的情况下生成RACH信号。

公开(公告)号：US10263744B2

公开(公告)日：2019-04-16

申请号：US13146611

申请日：2010-01-28

申请人： Takashi Iwai ,  Sadaki Futagi ,  Tomohumi Takata ,  Daichi Imamura ,  Yoshihiko Ogawa

发明人： Takashi Iwai ,  Sadaki Futagi ,  Tomohumi Takata ,  Daichi Imamura ,  Yoshihiko Ogawa

IPC分类号： H04L5/00 ,  H04L25/02 ,  H04L27/26 ,  H04L25/03

摘要： Disclosed are a wireless transmitter and a reference signal transmission method that improve channel estimation accuracy. In a terminal (100), which transmits a reference signal using n (n is a non-negative integer 2 or greater) band blocks (which correspond to clusters here), which are disposed with spaces therebetween in a frequency direction, a reference signal controller (106) switches the reference signal formation method of a reference signal generator (107) between a first formation method and a second formation method based on the number (n) of band blocks. In addition, a threshold value setting unit (105) adjusts a switching threshold value based on the frequency spacing between band blocks. Thus, the reference signal formation method can be selected with good accuracy and, as a result, channel estimation accuracy is further improved.