公开(公告)号：US20110261741A1

公开(公告)日：2011-10-27

申请号：US13176486

申请日：2011-07-05

申请人： Atsushi MATSUMOTO ,  Sadaki Futagi ,  Akihiko Nishio

发明人： Atsushi MATSUMOTO ,  Sadaki Futagi ,  Akihiko Nishio

IPC分类号： H04W52/04

CPC分类号： H04W52/325 ,  H04L1/0003 ,  H04L1/04 ,  H04L1/08 ,  H04L27/261 ,  H04L27/2626 ,  H04W52/42

摘要： A transmission power control apparatus capable of reducing unnecessary transmission power that is consumed in transmission of pilot symbols. In the apparatus, a power control part establishes, based on a repetition number of a data signal, a transmission power value of a pilot signal. For example, the power control part establishes, based on an improved reception quality when data signals as replicated in accordance with the repetition number of a data signal are combined, a transmission power value of a pilot signal at a level required and sufficient for meeting a target value of the reception quality of the other end of communication. A power amplifying part amplifies the pilot signal in accordance with the established transmission power value.

摘要翻译： 一种发送功率控制装置，其能够减少在导频符号的发送中消耗的不必要的发送功率。 在该装置中，功率控制部基于数据信号的重复次数建立导频信号的发送功率值。 例如，当根据数据信号的重复次数复制的数据信号被组合时，功率控制部件基于改进的接收质量来建立导频信号的发射功率值，其级别为满足 通信另一端的接收质量的目标值。 功率放大部分根据建立的发射功率值放大导频信号。

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：US07953197B2

公开(公告)日：2011-05-31

申请号：US11917758

申请日：2006-06-15

申请人： Masaru Fukuoka ,  Sadaki Futagi ,  Atsushi Matsumoto ,  Kenichi Miyoshi ,  Akihiko Nishio

发明人： Masaru Fukuoka ,  Sadaki Futagi ,  Atsushi Matsumoto ,  Kenichi Miyoshi ,  Akihiko Nishio

IPC分类号： H04L7/00 ,  H04L23/00 ,  H04B15/00

CPC分类号： H04B7/0854 ,  H04B1/7107 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/08 ,  H04L25/0224 ,  H04L27/2602 ,  H04L27/2626 ,  H04L27/2647 ,  H04W52/48

摘要： There is provided a mobile station device capable of effectively performing interference suppression symbol synthesis while suppressing the lowering of the transfer rate when using the repetition technique in multi-carrier communication. In the mobile station device (100), when the interference level exceeds a threshold value, a switching control unit (110) controls a switch (109) to connect a P/S unit (106) to a weight multiplication unit (113) and controls a switch (111) to connect a channel estimation unit (108) to a weight calculation unit (112). The weight calculation unit (112) calculates an interference suppression weight based on MMSE from a pilot symbol and a channel estimation value. The weight multiplication unit (113) multiplies a data symbol by the interference suppression weight. A synthesis unit (114) synthesizes the data symbol multiplied by the interference suppression weight in repetition unit.

摘要翻译： 提供了一种能够在多载波通信中使用重复技术的同时抑制传输速率降低的同时有效地进行干扰抑制符号合成的移动站装置。 在移动站装置（100）中，当干扰电平超过阈值时，切换控制单元（110）控制开关（109）将P / S单元（106）连接到加权乘法单元（113），并且 控制开关（111）将信道估计单元（108）连接到权重计算单元（112）。 权重计算单元（112）根据来自导频符号的MMSE和信道估计值来计算干扰抑制加权。 加权乘法单元（113）将数据符号乘以干扰抑制权重。 合成单元（114）以重复单位合成乘以干扰抑制权重的数据符号。

公开(公告)号：US20110080966A1

公开(公告)日：2011-04-07

申请号：US12969425

申请日：2010-12-15

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： H04L27/00

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：US20100303019A1

公开(公告)日：2010-12-02

申请号：US12853582

申请日：2010-08-10

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： H04W72/00

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).

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：US20100002804A1

公开(公告)日：2010-01-07

申请号：US12524689

申请日：2008-01-30

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

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

IPC分类号： H04L27/04 ,  H04L27/00

CPC分类号： H04L25/0226 ,  H04J13/0059 ,  H04J13/22

摘要： 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.

摘要翻译： 可以提供一种无线传输装置和无线传输方法，即使当本地小区的RS传输频带与相邻小区的RS传输频带不同时，也可以使用由ZC序列形成的参考信号来降低信道估计精度的劣化 。 移动台从RS表中确定与RB分配信息相对应的循环移位序列，该RS表把不同的频带宽度从各个传输频带的参考点相关到循环移位序列的频谱起始号，从而满足基于 序列长度，并将所确定的循环移位序列作为RS发送到基站。 基站使用与移动站的RS表相同的RS表，对从移动台发送的RS进行相关运算，进行信道估计。

公开(公告)号：US20090298523A1

公开(公告)日：2009-12-03

申请号：US12304728

申请日：2007-06-14

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

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

IPC分类号： H04B7/00

CPC分类号： H04W72/1231 ,  H04W72/04

摘要： 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 (101) which performs scheduling for allocating RB (Resource Block) to terminals belonging to a first group by FSA (Frequency Scheduled Allocation) in accordance with line quality of each terminal and each RB and allocating remaining RB other than the RB allocated to the terminals belonging to the first group, to terminals belonging to a second group according to a predetermined allocation rule. That is, the scheduler (101) performs RB allocation to the terminals belonging to the first group with a higher priority than RB allocation to the terminals belonging to the second group. Each time the scheduler (101) performs FSA, it outputs the result of the FSA to the terminals belonging to the first group to an encoding unit (102) and an extraction unit (111) and does not output any scheduling result to the terminals belonging to the second group.

摘要翻译： 提供一种能够在抑制通信信号的开销增加的同时获得大的多用户分集效应的无线通信基站装置。 无线通信基站装置包括调度器（101），其通过FSA（频率调度分配）根据各终端的线路质量和每个RB进行分配RB（资源块）到属于第一组的终端的调度，并分配剩余 根据预定分配规则，分配给属于第一组的终端的RB以外的RB属于第二组。 也就是说，调度器（101）对属于第一组的终端对属于第二组的终端具有比RB分配更高的优先级的RB分配。 每当调度器（101）执行FSA时，它将FSA的结果输出到属于第一组的终端到编码单元（102）和提取单元（111），并且不向归属的终端输出任何调度结果 到第二组。

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：US20090196270A1

公开(公告)日：2009-08-06

申请号：US12304720

申请日：2007-06-14

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

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

IPC分类号： H04B7/216

CPC分类号： H04W74/0833 ,  H04W24/08 ,  H04W28/0278 ,  H04W36/00 ,  H04W48/10 ,  H04W74/004 ,  H04W74/08

摘要： 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 1 to 6. When the Access type is ACTIVE, the data amount is smaller as compared to other Access types and the DL CQI is set to smaller than level 3 and greater than level 4. Furthermore, when the Access type is Handover, the data amount is middling as compared to other Access types and the DL CQI is set to level 1 to 3 or above.

摘要翻译： 可以提供能够提高资源使用效率而不增加或减少签名数量的无线传输装置和无线传输方法。 该设备和方法使用具有彼此唯一相关的Access类型，DL CQI和签名的签名表。 在该签名表中，根据在发送RACH之后的数据通信开始之前发送/接收的数据量，为每个Access类型设置DL CQI级别。 当Access类型为空闲时，数据量与其他Access类型相比较大，DL CQI设置为1级到6级。当Access类型为ACTIVE时，数据量与其他Access类型相比较小， DL CQI被设置为小于等级3并且大于等级4.此外，当Access类型是切换时，与其他接入类型相比，数据量是中等的，并且DL CQI被设置为级别1至3或更高。