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1. 发明申请

US20110287797A1 WIRELESS TRANSMITTER AND REFERENCE SIGNAL TRANSMISSION METHOD 审中-公开
标题翻译：无线发射机和参考信号传输方法
公开(公告)号：US20110287797A1
公开(公告)日：2011-11-24
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： H04W72/04
CPC分类号： H04L5/0048 , H04L25/022 , H04L25/0226 , H04L25/03159 , H04L27/2613
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.
摘要翻译：公开了一种提高信道估计精度的无线发射机和参考信号传输方法。在使用n（n为非负整数2以上）的频带（与此相对应的集群）发送参考信号的终端（100）中，在频率方向上设置有空格的参考信号控制器（106）基于频带块的数量（n）在第一形成方法和第二形成方法之间切换参考信号发生器（107）的参考信号形成方法。此外，阈值设定部（105）根据频带间的频率间隔调整切换阈值。因此，可以以高精度选择参考信号形成方法，结果进一步提高了信道估计精度。

2. 发明授权

US10263744B2 Wireless transmitter and reference signal transmission method 有权
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.

3. 发明申请

US20090161650A1 RADIO COMMUNICATION MOBILE STATION APPARATUS AND RADIO COMMUNICATION METHOD 有权
标题翻译：无线电通信移动站装置和无线电通信方法
公开(公告)号：US20090161650A1
公开(公告)日：2009-06-25
申请号：US12293530
申请日：2007-03-20
申请人： Daichi Imamura , Sadaki Futagi , Atsushi Matsumoto , Takashi Iwai , Tomohumi Takata
发明人： Daichi Imamura , Sadaki Futagi , Atsushi Matsumoto , Takashi Iwai , Tomohumi Takata
IPC分类号： H04B7/216
CPC分类号： H04W74/0833 , H04J13/0059 , H04J13/0066 , H04J13/16 , H04J13/22 , H04L5/0091 , H04W72/042
摘要： Provided is a mobile station capable of effectively reporting control information in RACH. In the mobile station, a signature selection unit (111) selects one of different code sequences as a signature according to inputted control information and a modulation unit (112) modulates a signature (code sequence). In a table provided in the signature selection unit (111), for control information ‘000’, CAZAC sequence #1 as a basic code sequence and a derived code sequence of shifts 0 to 7 derived from the CAZAC sequence #1 are set while being correlated to each other. The derived code sequence of shifts 0 to 7 of the CAZAC sequence #1 respectively correspond to signatures #1 to #8. Moreover, for control information ‘001’, CAZAC sequence #2 as a basic code sequence and a derived code sequence of shifts 0 to 7 derived from CAZAC sequence #2 are set while being correlated to each other. The derived code sequence of shifts 0 to 7 of the CAZAC sequence #2 respectively correspond to the signatures #9 to #16.
摘要翻译：提供能够有效地报告RACH中的控制信息的移动站。在移动站中，签名选择部（111）根据输入的控制信息选择不同的代码序列之一作为签名，调制部（112）调制签名（代码序列）。在签名选择部（111）中设置的表中，对于控制信息'000'，作为基本代码序列的CAZAC序列＃1和从CAZAC序列＃1导出的移位0〜7的导出代码序列被设定为相互关联。 CAZAC序列＃1的移位0到7的导出代码序列分别对应于签名＃1到＃8。此外，对于控制信息“001”，作为基本代码序列的CAZAC序列＃2和从CAZAC序列＃2导出的移位0〜7的导出代码序列被设定为彼此相关。 CAZAC序列＃2的移位0到7的导出代码序列分别对应于签名＃9至＃16。

4. 发明申请

US20130003659A1 RADIO COMMUNICATION BASE STATION DEVICE AND CORRELATION SETTING METHOD 有权
标题翻译：无线电通信基站设备和相关设置方法
公开(公告)号：US20130003659A1
公开(公告)日：2013-01-03
申请号：US13608894
申请日：2012-09-10
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： H04W74/08
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，。

5. 发明申请

US20120063469A1 SCHEDULING DEVICE AND SCHEDULING METHOD 审中-公开
标题翻译：调度装置和调度方法
公开(公告)号：US20120063469A1
公开(公告)日：2012-03-15
申请号：US13256591
申请日：2010-03-15
申请人： Takashi Iwai , Akihiko Nishio , Daichi Imamura , Kenichi Miyoshi , Megumi Ichikawa , Yoshihiko Ogawa , Sadaki Futagi
发明人： Takashi Iwai , Akihiko Nishio , Daichi Imamura , Kenichi Miyoshi , Megumi Ichikawa , Yoshihiko Ogawa , Sadaki Futagi
IPC分类号： H04L12/66
CPC分类号： H04W72/085 , H04W72/042
摘要： Provided are a scheduling device and a scheduling method, in which the amount of signaling of frequency resource allocation information can be reduced while the system throughput is maintained. In a base station device (100), a scheduling unit (113) selects, as an allocation resource for a terminal to which resources are to be allocated, at most one cluster band in each of a plurality of allocatable ranges set within a system band and generates allocation resource information including information relating to the selected cluster, and an encoding unit (114), a modulation unit (115), and a transmission RF unit (116) which serve as a transmission means transmit the allocation resource information generated by the scheduling unit (113) to the terminal to which the resources are to be allocated. Among the plurality of allocatable ranges, a first allocatable range is the entire system band, while a second allocatable range is a low frequency-side band or a high frequency-side band when the system band is divided into halves.
摘要翻译：提供了一种调度装置和调度方法，其中可以在保持系统吞吐量的同时减少频率资源分配信息的信令量。在基站装置（100）中，调度部（113）在系统频带内设定的多个可分配范围的每一个中，选择作为分配资源的终端的分配资源，并生成包括与所选择的群集有关的信息的分配资源信息，作为发送单元的编码单元（114），调制单元（115）和发送RF单元（116）发送由调度单元（113）发送到要向其分配资源的终端。在多个可分配范围中，第一可分配范围是整个系统频带，而当系统频带被分成两半时，第二可分配范围是低频侧频带或高频侧频带。

6. 发明授权

US08081617B2 Radio transmitting apparatus and radio transmitting method 有权
标题翻译：无线发送装置和无线发送方法
公开(公告)号：US08081617B2
公开(公告)日：2011-12-20
申请号：US12376002
申请日：2007-08-02
申请人： Takashi Iwai , Sadaki Futagi , Daichi Imamura , Atsushi Matsumoto , Yoshihiko Ogawa
发明人： Takashi Iwai , Sadaki Futagi , Daichi Imamura , Atsushi Matsumoto , Yoshihiko Ogawa
IPC分类号： H04B7/216
CPC分类号： H04W56/005 , H04J13/0074 , H04J13/10 , H04W8/26 , H04W74/0866
摘要： 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 (104) selects, based on the magnitude of a propagation loss level outputted by a propagation loss level determining part (102), one of the corresponding signatures from the signature table storing part (103) at random. A RACH signal generating part (105) uses the selected signature to generate a RACH signal.
摘要翻译：一种无线电发送装置和无线电发送方法，其中可以减少代码之间的干扰，并且可以防止前导码检测能力的劣化。根据这些装置和方法，一种签名表存储部分（103），其存储包括根据与基站的距离将传播损耗级别的大小分级为等级而获得的多个签名的表，将前同步码检测窗宽度通过循环移位与签名#n对应的检测窗签名#n的图案，生成签名＃n + 1。签名选择部（104）基于由传播损耗等级确定部（102）输出的传播损耗等级的大小，从签名表存储部（103）中随机选择一个对应的签名。 RACH信号生成部（105）使用所选择的签名来生成RACH信号。

7. 发明申请

US20110205966A1 RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD 有权
标题翻译：无线传输设备和无线传输方法
公开(公告)号：US20110205966A1
公开(公告)日：2011-08-25
申请号：US12989694
申请日：2009-06-16
申请人： Takashi Iwai , Katsuhiko Hiramatsu , Daichi Imamura , Akihiko Nishio , Seigo Nakao , Atsushi Sumasu , Yoshihiko Ogawa , Sadaki Futagi
发明人： Takashi Iwai , Katsuhiko Hiramatsu , Daichi Imamura , Akihiko Nishio , Seigo Nakao , Atsushi Sumasu , Yoshihiko Ogawa , Sadaki Futagi
IPC分类号： H04W4/00
CPC分类号： H04L27/0008 , H04B7/063 , H04B7/0639 , H04B7/0643 , H04B7/0689 , H04L1/0021 , H04L1/0029 , H04L5/0007 , H04L27/2636 , H04W52/367 , H04W52/42
摘要： Provided are a radio transmission device and a radio transmission method which can suppress lowering of the throughput caused by switching between the single carrier communication method and the multi-carrier communication method while suppressing increase of the signaling amount. A PHR threshold value setting unit (116) sets a threshold value Y1 at a position greater by a predetermined value than the PHR at which the throughput performance of the SC-FDMA coincides with that of the OFDMA. A trigger signal transmission judgment unit (117) judges that a mobile station transmits a trigger signal for switching from the OFDMA to the SC-FDMA if the PHR in the OFDMA communication method is lower than the threshold value Y1.
摘要翻译：提供一种能够抑制在单载波通信方式和多载波通信方式之间切换的吞吐量的降低同时抑制信令量的增加的无线传输装置和无线传输方法。 PHR阈值设置单元（116）将阈值Y1设置在比SCDMA的吞吐量性能与OFDMA的吞吐量性能一致的PHR更大预定值的位置处。如果OFDMA通信方法中的PHR低于阈值Y1，则触发信号发送判断单元（117）判断移动站发送用于从OFDMA切换到SC-FDMA的触发信号。

8. 发明申请

US20100284394A1 RADIO COMMUNICATION TERMINAL DEVICE AND RADIO TRANSMISSION METHOD 有权
标题翻译：无线电通信终端设备和无线传输方法
公开(公告)号：US20100284394A1
公开(公告)日：2010-11-11
申请号：US12811189
申请日：2008-12-26
申请人： Tomofumi Takata , Daichi Imamura , Seigo Nakao , Sadaki Futagi , Takashi Iwai , Yoshihiko Ogawa
发明人： Tomofumi Takata , Daichi Imamura , Seigo Nakao , Sadaki Futagi , Takashi Iwai , Yoshihiko Ogawa
IPC分类号： H04J1/00
CPC分类号： H04L5/0048 , H04B7/0632 , H04J11/00 , H04J13/0003 , H04J13/0055 , H04J13/0059 , H04J13/0074 , H04J13/10 , H04L5/0007 , H04L5/0057 , H04L25/0204 , H04L25/0208 , H04L25/0228 , H04L27/2695 , H04W72/0413 , H04W72/0446 , H04W72/082 , H04W88/02
摘要： 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 (112) stores a phase table which correlates the amount of cyclic shift to complex coefficients {w1, W2} to be multiplied on the reference signal. A complex coefficient multiplication unit (113) reads out a complex coefficient corresponding to the amount of cyclic shift indicated by resource allocation information, from the phase table storage unit (112) and multiplies the read-out complex coefficient on the reference signal so as to change the phase relationship between the reference signals in a slot.
摘要翻译：可以提供可以提高CQI的接收性能和参考信号的无线通信终端装置和无线发送方法。相位表存储单元（112）存储将循环移位量与要参考信号相乘的复系数{w1，W2}相关的相位表。复系数乘法单元（113）从相位表存储单元（112）读出与由资源分配信息指示的循环移位量相对应的复数系数，并将读出的复数系数与参考信号相乘，从而改变一个插槽中的参考信号之间的相位关系。

9. 发明申请

US20100284265A1 SEQUENCE NUMBER ESTABLISHING METHOD, WIRELESS COMMUNICATION TERMINAL APPARATUS AND WIRELESS COMMUNICATION BASE STATION APPARATUS 审中-公开
标题翻译：序列号建立方法，无线通信终端装置和无线通信基站装置
公开(公告)号：US20100284265A1
公开(公告)日：2010-11-11
申请号：US12810814
申请日：2008-12-26
申请人： Yoshihiko Ogawa , Daichi Imamura , Sadaki Futagi , Takashi Iwai , Atsushi Matsumoto , Tomofumi Takata
发明人： Yoshihiko Ogawa , Daichi Imamura , Sadaki Futagi , Takashi Iwai , Atsushi Matsumoto , Tomofumi Takata
IPC分类号： H04J11/00
CPC分类号： H04J13/0062 , H04J11/005 , H04J13/22
摘要： 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 (105) has a table in which the sequence numbers of a plurality of Zadoff-Chu sequences having different sequence lengths are associated with the sequence group numbers of a plurality of sequence groups into which the Zadoff-Chu sequences are grouped and with the transmission bandwidths of reference signals. In accordance with a sequence group number and a transmission bandwidth both 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 sequence-number start-positions are established for the Zadoff-Chu sequences having the different sequence lengths.
摘要翻译：可以减少小区间序列间干扰出现的无线通信终端装置。在该装置中，序列号判定部（105）具有将具有不同序列长度的多个Zadoff-Chu序列的序列号与多个序列组的序列组号相关联的表，Zadoff- Chu序列被分组并且具有参考信号的传输带宽。根据从解码部（104）接收的序列组号和发送带宽，序列号决定部（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，针对具有不同序列长度的Zadoff-Chu序列建立不同的序列号开始位置。

10. 发明申请

US20090323641A1 RADIO COMMUNICATION MOBILE STATION DEVICE AND MCS SELECTION METHOD 审中-公开
标题翻译：无线电通信移动站设备和MCS选择方法
公开(公告)号：US20090323641A1
公开(公告)日：2009-12-31
申请号：US12514270
申请日：2007-11-09
申请人： Sadaki Futagi , Daichi Imamura , Yoshihiko Ogawa , Atsushi Matsumoto , Takashi Iwai , Katsuhiko Hiramatsu
发明人： Sadaki Futagi , Daichi Imamura , Yoshihiko Ogawa , Atsushi Matsumoto , Takashi Iwai , Katsuhiko Hiramatsu
IPC分类号： H04B7/216
CPC分类号： H04W72/085 , H04L1/0003 , H04L1/0009 , H04L1/0017 , H04W28/18
摘要： 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 (104) selects a first MCS if the transmission data amount accumulated in a buffer of a data control unit (105) is smaller than a threshold value and selects a second MCS having a higher MCS level than the first MCS if the transmission data amount is not smaller than the threshold value. Thus, in a mobile station (100), data encoded and modulated according to the first MCS is transmitted during a normal state when the transmission data amount is small, and data encoded and modulated according to the second MCS having a higher MCS level than the first MCS is transmitted when the transmission data amount is increased to a large amount.
摘要翻译：提供一种无线电通信移动站装置，其能够在执行持续调度的无线电通信系统中防止传输数据量增加时的传输延迟。在该装置中，如果在数据控制单元（105）的缓冲器中累积的发送数据量小于阈值，则MCS选择单元（104）选择第一MCS，并且选择具有比该阈值更高的MCS级别的第二MCS 如果传输数据量不小于阈值，则是第一MCS。因此，在移动台（100）中，当发送数据量小时，在正常状态期间发送根据第一MCS编码和调制的数据，并且根据具有比该第一MCS更高的MCS级别的第二MCS编码和调制的数据当发送数据量增加到大量时，发送第一MCS。

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