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：US20100246559A1

公开(公告)日：2010-09-30

申请号：US12295260

申请日：2007-03-29

申请人： Yoshihiko Ogawa ,  Daichi Imamura ,  Ayako Horiuchi ,  Sadaki Futagi

发明人： Yoshihiko Ogawa ,  Daichi Imamura ,  Ayako Horiuchi ,  Sadaki Futagi

IPC分类号： H04J3/00

CPC分类号： H04W72/1289 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0085 ,  H04L5/023 ,  H04W88/085

摘要： A radio communication base station device can efficiently obtain a multiuser diversity gain from frequency scheduling while reducing the amount of a reference signal occupying an uplink. In the device, a grouping section (109) divides a plurality of RBs (Resource Blocks) into a plurality of RB groups. An RB group control unit (108) performs a control to change the correspondence relationship between the RBs and the RB groups with time. When the grouping section (109) divides the RBs into the RB groups, the RB control unit (108) performs a control to change a combination of the RBs included in each of the RB groups with time. A scheduling section (110) performs a scheduling of allocating each of a plurality of mobile stations to each of the RBs in each of the RB groups according to the reception quality of the reference signal.

摘要翻译： 无线通信基站装置可以在减少占用上行链路的参考信号的量的情况下，有效地从频率调度获得多用户分集增益。 在该装置中，分组部（109）将多个RB（资源块）划分为多个RB组。 RB组控制单元（108）执行随时间改变RB和RB组之间的对应关系的控制。 当分组部分（109）将RB分成RB组时，RB控制单元（108）执行控制以随时间改变每个RB组中包括的RB的组合。 调度部（110）根据参考信号的接收质量，执行向RB组中的每个RB分配多个移动台中的每一个的调度。

公开(公告)号：US08571001B2

公开(公告)日：2013-10-29

申请号：US12295260

申请日：2007-03-29

申请人： Yoshihiko Ogawa ,  Daichi Imamura ,  Ayako Horiuchi ,  Sadaki Futagi

发明人： Yoshihiko Ogawa ,  Daichi Imamura ,  Ayako Horiuchi ,  Sadaki Futagi

IPC分类号： H04J3/00

CPC分类号： H04W72/1289 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0085 ,  H04L5/023 ,  H04W88/085

摘要： A radio communication base station device can efficiently obtain a multiuser diversity gain from frequency scheduling while reducing the amount of a reference signal occupying an uplink. In the device, a grouping section (109) divides a plurality of RBs (Resource Blocks) into a plurality of RB groups. An RB group control unit (108) performs a control to change the correspondence relationship between the RBs and the RB groups with time. When the grouping section (109) divides the RBs into the RB groups, the RB control unit (108) performs a control to change a combination of the RBs included in each of the RB groups with time. A scheduling section (110) performs a scheduling of allocating each of a plurality of mobile stations to each of the RBs in each of the RB groups according to the reception quality of the reference signal.

摘要翻译： 无线通信基站装置可以在减少占用上行链路的参考信号的量的情况下，有效地从频率调度获得多用户分集增益。 在该装置中，分组部（109）将多个RB（资源块）划分为多个RB组。 RB组控制单元（108）执行随时间改变RB和RB组之间的对应关系的控制。 当分组部分（109）将RB分成RB组时，RB控制单元（108）执行控制以随时间改变每个RB组中包括的RB的组合。 调度部（110）根据参考信号的接收质量，执行向RB组中的每个RB分配多个移动台中的每一个的调度。

公开(公告)号：US20120021754A1

公开(公告)日：2012-01-26

申请号：US13062177

申请日：2009-09-03

申请人： Yoshihiko Ogawa ,  Sergio Nakao ,  Daichi Imamura ,  Katsuhiko Hiramatsu ,  Kenichi Miyoshi ,  Megumi Ichikawa ,  Sadaki Futagi ,  Yasuaki Yuda ,  Ayako Horiuchi

发明人： Yoshihiko Ogawa ,  Sergio Nakao ,  Daichi Imamura ,  Katsuhiko Hiramatsu ,  Kenichi Miyoshi ,  Megumi Ichikawa ,  Sadaki Futagi ,  Yasuaki Yuda ,  Ayako Horiuchi

IPC分类号： H04W72/04

CPC分类号： H04L1/1893 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0066 ,  H04W72/082

摘要： Disclosed is a radio communication device that, even when a terminal erroneously receives a retransmission grant or a response signal from a base station, can reduce the number of other terminals in which the terminal interferes at a retransmission. In this device, a determination unit (205) determines a bandwidth between the two ends of a transmission band allocated to a transmitted signal at the retransmission of the transmitted signal. An allocation unit (209) allocates the transmitted signal to a frequency resource based on the bandwidth that is input from the determination unit (205). The determination unit (205) increases at the retransmission the amount of decrease in the bandwidth from the previous transmission, as the consecutiveness of the transmitted signal in the frequency region decreases.

摘要翻译： 公开了一种无线电通信装置，即使当终端错误地接收到来自基站的重发授权或响应信号时，也可以减少终端在重发时干扰的其他终端的数量。 在该装置中，确定单元（205）确定在发送信号的重发时分配给发送信号的发送频带的两端之间的带宽。 分配单元（209）基于从确定单元（205）输入的带宽，将发送的信号分配给频率资源。 随着频率区域中的发送信号的连续性降低，确定单元（205）在重传时增加了来自先前传输的带宽的减少量。

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.

公开(公告)号：US20130003684A1

公开(公告)日：2013-01-03

申请号：US13610665

申请日：2012-09-11

申请人： Yoshihiko Ogawa ,  Daichi Imamura ,  Sadaki Futagi ,  Tomofumi Takata

发明人： Yoshihiko Ogawa ,  Daichi Imamura ,  Sadaki Futagi ,  Tomofumi Takata

IPC分类号： H04W72/00 ,  H04W4/00

CPC分类号： H04J11/005 ,  H04B1/38 ,  H04J13/0062 ,  H04J13/22 ,  H04L5/0048 ,  H04L5/0073 ,  H04L27/2602 ,  H04L43/16 ,  H04W16/10 ,  H04W72/042

摘要： Provided is a sequence allocation method capable of reducing inter-cell interference of a reference signal when a ZC sequence is used as the reference signal in a mobile communication system. In the sequence allocation method divides R×M sequences specified by a ZC sequence number r(r=1 to R) and a cyclic shift sequence number m (m=1 to M) into a plurality of sequence groups X (X=1 to R) in accordance with the transmission band width of the reference signal, so that the ZC sequence is allocated to each cell in each sequence group unit. When it is assumed that R=9 and M=6, the number of sequence is 54. Each of the sequence groups is formed by two sequences. Accordingly, the number of sequence groups is 27. The 27 types of sequence groups are allocated to each cell.

摘要翻译： 提供了当在移动通信系统中使用ZC序列作为参考信号时，能够减少参考信号的小区间干扰的序列分配方法。 在序列分配方法中，将由ZC序列号r（r = 1〜R）和循环移位序列号m（m = 1〜M）指定的R×M序列划分为多个序列组X（X = 1〜 R），使得ZC序列被分配给每个序列组单元中的每个小区。 当假定R = 9且M = 6时，序列数为54.每个序列组由两个序列组成。 因此，序列组的数量为27.将27种类型的序列组分配给每个单元。

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， 。

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。

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。

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。