公开(公告)号：US20110299496A1

公开(公告)日：2011-12-08

申请号：US13201767

申请日：2010-02-17

申请人： Takashi Iwai ,  Sadaki Futagi ,  Daichi Imamura ,  Akihiko Nishio ,  Seigo Nakao ,  Yoshihiko Ogawa

发明人： Takashi Iwai ,  Sadaki Futagi ,  Daichi Imamura ,  Akihiko Nishio ,  Seigo Nakao ,  Yoshihiko Ogawa

IPC分类号： H04W72/04

CPC分类号： H04W72/0453 ,  H04L5/0037 ,  H04L5/0041 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0091 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/08

摘要： A scheduling apparatus and a scheduling method, wherein the amount of signaling for frequency resource allocation information can be reduced while maintaining system throughput performance. In a base station apparatus (100), a scheduling section (113) allocates frequency resources to frequency allocation target terminals based on set frequency allocation units, and a frequency allocation parameter setting section (112) adjusts the set frequency allocation units set in the scheduling section (113) based on cluster numbers. Due to this, in each cluster number, frequency resources can be allocated based on the most suitable frequency allocation units with respect to the signaling bit number. As a result, the amount of signaling for frequency resource allocation information can be reduced. Further, system throughput can be maintained by making the cluster number, which is a parameter having little effect on system throughput, a setting parameter for frequency allocation units.

摘要翻译： 一种调度装置和调度方法，其中可以在维持系统吞吐量性能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）基于设定的频率分配单位向频率分配对象终端分配频率资源，频率分配参数设定部（112）对调度中设定的设定频率分配单位进行调整 （113）基于簇号。 因此，在每个簇号中，可以基于针对信令比特数的最合适的频率分配单元来分配频率资源。 结果，可以减少用于频率资源分配信息的信令量。 此外，可以通过使作为对系统吞吐量影响不大的参数的簇号，频率分配单元的设定参数来维持系统吞吐量。

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。

公开(公告)号：US20110167312A1

公开(公告)日：2011-07-07

申请号：US13063163

申请日：2009-09-28

申请人： Yoshihiko Ogawa ,  Seigo Nakao ,  Katsuhiko Hiramatsu ,  Daichi Imamura ,  Masayuki Hoshino ,  Atsushi Sumasu ,  Ayako Horiuchi ,  Sadaki Futagi ,  Masaru Fukuoka ,  Takashi Iwai

发明人： Yoshihiko Ogawa ,  Seigo Nakao ,  Katsuhiko Hiramatsu ,  Daichi Imamura ,  Masayuki Hoshino ,  Atsushi Sumasu ,  Ayako Horiuchi ,  Sadaki Futagi ,  Masaru Fukuoka ,  Takashi Iwai

IPC分类号： G06F11/14

CPC分类号： H04L1/1887 ,  H04L1/1893 ,  H04W74/085

摘要： 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 (204) contains NACK and retransmission Grant, a retransmission resource check unit (205) determines that the resource indicated by the retransmission Grant is the retransmission resource. Moreover, when no retransmission Grant is detected and the initial transmission is a wideband transmission, the retransmission resource check unit (205) determines that no retransmission resource exists and instructs an RB allocation unit (209) to stop retransmission. Moreover, when no retransmission Grant is detected and the initial transmission is a narrow band transmission, a predetermined resource is determined to be the retransmission resource.

摘要翻译： 提供即使在重发中没有检测到资源分配信号的情况下也能够降低发送分组冲突发生率的无线发送装置和无线发送方法。 当从解码单元（204）输出的控制信息包含NACK和重发授权时，重发资源检查单元（205）确定由重发授权指示的资源是重传资源。 此外，当没有检测到重传授权并且初始传输是宽带传输时，重发资源检查单元（205）确定不存在重传资源，并且指示RB分配单元（209）停止重传。 此外，当没有检测到重传授权并且初始发送是窄带传输时，将预定资源确定为重传资源。

公开(公告)号：US20090213813A1

公开(公告)日：2009-08-27

申请号：US12298693

申请日：2007-04-26

申请人： Sadaki Futagi ,  Takashi Iwai ,  Daichi Imamura ,  Kenichi Miyoshi

发明人： Sadaki Futagi ,  Takashi Iwai ,  Daichi Imamura ,  Kenichi Miyoshi

IPC分类号： H04B7/216 ,  H04J3/00

CPC分类号： H04J13/0059 ,  H04L1/1893 ,  H04W72/06 ,  H04W74/0866

摘要： Provided is a mobile station device capable of performing RACH transmission with a small amount of resources. In this device, a RACH generating unit (111) is formed by a signature selection unit (112) and a modulation unit (113). A RACH signal is generated as follows. That is, according to inputted RACH re-transmission quantity information, the signature selection unit (112) selects one code sequence as a signature from a plurality of different code sequences. The modulation unit (113) modulates the signature (code sequence) and generates a RACH signal. A multiplexing unit (116) time-multiplexes the RACH signal inputted from the modulation unit (113) and user data inputted from the modulation unit (115). A radio transmission unit (117) subjects the multiplexed signal to radio processing and transmits it via an antenna (121).

摘要翻译： 提供能够以少量的资源进行RACH传输的移动站装置。 在该装置中，由签名选择部（112）和调制部（113）构成RACH生成部（111）。 如下生成RACH信号。 也就是说，根据输入的RACH重传量信息，签名选择部（112）从多个不同的代码序列中选择一个代码序列作为签名。 调制单元（113）调制签名（代码序列）并产生RACH信号。 复用单元（116）对从调制单元（113）输入的RACH信号和从调制单元（115）输入的用户数据进行时分复用。 无线发送单元（117）对多路复用信号进行无线处理，经由天线（121）发送。

公开(公告)号：US08737329B2

公开(公告)日：2014-05-27

申请号：US13148890

申请日：2010-02-12

申请人： Yoshihiko Ogawa ,  Akihiko Nishio ,  Daichi Imamura ,  Seigo Nakao ,  Masayuki Hoshino ,  Takashi Iwai ,  Sadaki Futagi

发明人： Yoshihiko Ogawa ,  Akihiko Nishio ,  Daichi Imamura ,  Seigo Nakao ,  Masayuki Hoshino ,  Takashi Iwai ,  Sadaki Futagi

IPC分类号： H04W4/00

CPC分类号： H04W72/1289 ,  H04L1/00 ,  H04L1/0004 ,  H04L1/0041 ,  H04L1/0045 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/0041 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0092 ,  H04L27/2601 ,  H04L27/2607 ,  H04L27/2614 ,  H04L27/2636 ,  H04L27/2647 ,  H04W28/06 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/0466 ,  H04W72/0473 ,  H04W72/12 ,  H04W72/1268 ,  H04W84/042

摘要： Disclosed are a wireless communication base station device, a wireless communication terminal device, and a wireless communication method with which the amount of signaling is reduced while maintaining a high scheduling gain. A judgment unit (117) stores in advance a correspondence between the number of code words and the number of clusters to reduce the maximum value for the number of clusters allocated to each terminal as the number of code words increases, and thus determines the maximum value for the number of clusters based on the number of code words acquired. Based on the number of code words for a transmission signal from a terminal, an estimated value for the reception quality that is output by an estimation unit (109), and the maximum value for the number of clusters that is output by the judgment unit (117), a scheduling unit (118) schedules the allocation of the transmission signal transmitted by each terminal to a transmission band frequency (frequency resource) so as not to exceed the maximum value for the number of clusters.

摘要翻译： 公开了一种无线通信基站装置，无线通信终端装置和无线通信方法，在保持高调度增益的同时，信令量减少。 判断单元117预先存储代码字数与簇数之间的对应关系，以便随着码字数量的增加而减小分配给每个终端的簇的数量的最大值，从而确定最大值 对于基于所获取的代码字数的集群数。 基于来自终端的发送信号的码字的数量，由估计单元（109）输出的接收质量的估计值和由判断单元（109）输出的群集数的最大值 117），调度单元（118）将由各终端发送的发送信号的分配调度为发送频带频率（频率资源），以使其不超过簇的数量的最大值。

公开(公告)号：US08369806B2

公开(公告)日：2013-02-05

申请号：US11908093

申请日：2006-03-10

申请人： Kenichi Miyoshi ,  Akihiko Nishio ,  Takashi Iwai ,  Sadaki Futagi ,  Katsuhiko Hiramatsu ,  Daichi Imamura ,  Takashi Aramaki

发明人： Kenichi Miyoshi ,  Akihiko Nishio ,  Takashi Iwai ,  Sadaki Futagi ,  Katsuhiko Hiramatsu ,  Daichi Imamura ,  Takashi Aramaki

IPC分类号： G06F3/033

CPC分类号： H04L27/2666 ,  H04L25/03159 ,  H04L27/2607 ,  H04L27/2646 ,  H04L27/2647 ,  H04L27/2662

摘要： A radio receiver apparatus that can effectively utilize GI to improve the reception quality. In this apparatus, a data extracting part (104) extracts a data portion of a direct wave from a signal subjected to a radio reception process by a received RF part (102). A GI extracting part (107) extracts, from the signal subjected to the radio reception process by the received RF part (102), GI having a length determined by an extracted GI length deciding part (106). The extracted GI is adjusted by a data position adjusting part (108) such that its rear end coincides with the read end of the extracted data portion. A combining part (109) combines the extracted data portion with the GI the data position of which has been adjusted. The combined signal is then supplied to a frequency axis equalizing part (110), which equalizes the signal distortions of the combined signal on the frequency axis.

摘要翻译： 能够有效地利用GI来提高接收质量的无线接收装置。 在该装置中，数据提取部（104）从接收到的RF部（102）的无线接收处理的信号中提取直接波的数据部。 GI提取部分（107）从接收到的RF部分（102）的经过无线电接收处理的信号中提取具有由提取的GI长度确定部分（106）确定的长度的GI。 提取的GI由数据位置调整部（108）调整，使得其后端与提取的数据部分的读取端一致。 组合部分（109）将提取的数据部分与其数据位置已被调整的GI组合。 然后将组合的信号提供给频率轴均衡部分（110），其使得频率轴上的组合信号的信号失真均衡。

公开(公告)号：US20100086082A1

公开(公告)日：2010-04-08

申请号：US12597491

申请日：2008-04-25

申请人： Yoshihiko Ogawa ,  Daichi Imamura ,  Takashi Iwai ,  Tomofumi Takata

发明人： Yoshihiko Ogawa ,  Daichi Imamura ,  Takashi Iwai ,  Tomofumi Takata

IPC分类号： H04L27/20

CPC分类号： H04L27/2626 ,  H04J13/0003 ,  H04J13/0059 ,  H04L27/2613

摘要： 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 (110) of a reference signal generation unit (108) adds a phase rotation corresponding to a frequency difference δ; between the transmission band of the reference point and that of the reference signal to a ZC sequence as a reference signal in the frequency region. The ZC sequence to which the phase rotation is added is multiplexed with transmission data in a multiplexing unit (114) and a multiplexed signal is transmitted from a transmission RF unit (115).

摘要翻译： 公开了一种无线通信终端装置，无线通信基站装置和无线通信方法，其能够防止干扰波峰值输入到分配给本地小区的循环移位序列的检测窗口，并提高信道估计精度 一个基站。 对于建立帧同步的所有小区和各个终端的发送带宽设定用作参考的频率。 通过以频率为参考点，参考信号生成单元（108）的相位旋转加法单元（110）将与频率差δ相对应的相位旋转相加; 在参考点的传输频带和参考信号的传输频带之间作为频率区域中的参考信号。 将相位旋转相加的ZC序列与复用单元（114）中的发送数据进行多路复用，并且从发送RF单元（115）发送多路复用信号。

公开(公告)号：US08711814B2

公开(公告)日：2014-04-29

申请号：US12679660

申请日：2008-09-26

申请人： Takashi Iwai ,  Tomofumi Takata ,  Daichi Imamura ,  Yoshihiko Ogawa

发明人： Takashi Iwai ,  Tomofumi Takata ,  Daichi Imamura ,  Yoshihiko Ogawa

IPC分类号： H04B1/707

CPC分类号： H04J13/105 ,  H04J13/0062

摘要： 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 (103) truncates or extends the ZC sequence while maintaining the symmetry of the ZC sequence inputted from a ZC sequence generation unit (102) so as to adjust the sequence length to the number of subcarriers equivalent to the transmission bandwidth of a reference signal inputted from a sequence length setting unit (101). More specifically, the sequence length adjustment unit (103) truncates or extends any one of symbols constituting the ZC sequence so as to truncate or extend the ZC sequence. A transmission RF unit (107) transmits the ZC sequence after the sequence length adjustment.

摘要翻译： 提供一种无线通信装置，其能够防止ZC序列之间产生相互相关峰值，并且降低CS-ZC序列的BLER特性的劣化。 在该装置中，序列长度调整部（103）在保持从ZC序列生成部（102）输入的ZC序列的对称性的同时，对ZC序列进行截断或扩展，将序列长度调整为与 从序列长度设置单元（101）输入的参考信号的传输带宽。 更具体地，序列长度调整单元（103）截断或扩展构成ZC序列的符号中的任何一个，以便截断或扩展ZC序列。 发送RF单元（107）在序列长度调整之后发送ZC序列。

公开(公告)号：US20120195274A1

公开(公告)日：2012-08-02

申请号：US13438761

申请日：2012-04-03

申请人： Takashi Iwai ,  Daichi Imamura ,  Tomofumi Takata ,  Yoshihiko Ogawa

发明人： Takashi Iwai ,  Daichi Imamura ,  Tomofumi Takata ,  Yoshihiko Ogawa

IPC分类号： H04W72/04

CPC分类号： H04W72/0446 ,  H04J13/0055 ,  H04J13/0062 ,  H04J13/22 ,  H04W72/0453 ,  H04W72/0466

摘要： 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 (ST101), setting a threshold value (Xth(m)) in accordance with an RB number (m) in a step (ST103), setting a sequence length (N) corresponding to RB number (m) in a step (ST104), judging whether |r/N−rb/Nb|=Xth(m) is satisfied in a step (ST106), including a plurality of Zadoff-Chu sequences with a sequence number (r) and a sequence length (N) in a sequence group (rb) in a step (ST107) if the judgment is positive, and allocating the sequence group (rb) to the same cell in a step (ST112).

摘要翻译： 本发明的目的是提供一种在保持Zadoff-Chu序列的数量以构成序列组的同时，使得可以减少不同顺序组之间的相关性的序列分配方法。 该方法包括以下步骤：在步骤（ST101）中设置标准序列长度（Nb）和标准序列号（rb）的标准序列，根据RB号设置阈值（Xth（m）） 在步骤（ST103）中，在步骤（ST104）中设定与RB号（m）对应的序列长度（N）的步骤（ST103），判断是否满足| r / N-rb / Nb | = Xth（m） 步骤（ST106），如果判断为肯定，则在步骤（ST107）中包括序列号（rb）中的序列号（r）和序列长度（N）的多个Zadoff-Chu序列，并且分配序列 组（rb）到步骤中的相同单元（ST112）。

公开(公告)号：US20100210274A1

公开(公告)日：2010-08-19

申请号：US12665249

申请日：2008-06-18

申请人： Takashi Iwai ,  Daichi Imamura ,  Tomofumi Takata ,  Yoshihiko Ogawa

发明人： Takashi Iwai ,  Daichi Imamura ,  Tomofumi Takata ,  Yoshihiko Ogawa

IPC分类号： H04W72/04

CPC分类号： H04J13/22 ,  H04J13/0062

摘要： 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 (ST101), setting a threshold values (Xth1(m)) and (Xth2(m)) in accordance with an RB number (m) in a step (ST103), setting a sequence length (N) corresponding to RB number (m) in a step (ST104), judging whether ¦r/N−rb/Nb¦=Xth1(m) is satisfied in a step (ST106), judging whether ¦r/N−rb/Nb¦=Xth2(m) is satisfied in a step (ST107), including Zadoff-Chu sequences with a sequence number (r) and a sequence length (N) in a sequence group (rb) in a step (ST108); if both judgments are positive, and allocating the sequence group (rb) to the same cell in a step (ST113).

摘要翻译： 本发明的目的是提供一种序列分配方法，该方法在保持Zadoff-Chu序列的数目以构成序列组的同时，可以减少不同顺序组之间和相同序列组之间的相关性。 该方法包括以下步骤：在步骤（ST101）中设置标准序列长度（Nb）和标准序列号（rb）的标准序列，设定阈值（Xth1（m））和（Xth2（m）） 根据步骤（ST103）中的RB号（m），在步骤（ST104）中设定与RB号（m）对应的序列长度（N），判断是否| r / N-rb /Nb≥= Xth1 在步骤（ST106）中，满足步骤（ST106）满足步骤（ST107）中判断是否满足步骤（ST107）中的| r / N-rb /Nb≥= Xth2（m），包括序列号（r）的Zadoff-Chu序列和 步骤（ST108）中序列组（rb）中的序列长度（N）; 如果两个判断都是肯定的，并且在步骤（ST113）中将序列组（rb）分配给相同的单元。