公开(公告)号：US20120026948A1

公开(公告)日：2012-02-02

申请号：US13124811

申请日：2009-10-15

申请人： Yoshihiko Ogawa ,  Selgo Nakao ,  Daichl Imamura ,  Akihiko Nishio ,  Masayuki Hoshino ,  Katsuhiko Hiramatsu ,  Kenichi Miyoshi ,  Yasuaki Yuda ,  Megumi Ichikawa ,  Sadaki Futagi ,  Takashi Iwai

发明人： Yoshihiko Ogawa ,  Selgo Nakao ,  Daichl Imamura ,  Akihiko Nishio ,  Masayuki Hoshino ,  Katsuhiko Hiramatsu ,  Kenichi Miyoshi ,  Yasuaki Yuda ,  Megumi Ichikawa ,  Sadaki Futagi ,  Takashi Iwai

IPC分类号： H04W72/04

CPC分类号： H04W72/0453 ,  H04L1/0042 ,  H04L1/0061 ,  H04L5/0023 ,  H04L5/0039 ,  H04L5/0048 ,  H04L25/0226 ,  H04L25/03159 ,  H04L27/2602

摘要： Disclosed are a wireless communication base station device and a division number determination method that improves the frequency diversity effect while maintaining channel estimation accuracy regardless of the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. A determination unit (117) determines the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. Here, the determination unit (117) increases the number of divisions in the frequency domain of the transmission signal from the wireless communication terminal device as the number of pilot blocks included in the transmission signal increases. In addition, a scheduling unit (118) schedules allocation to the frequency resources of the divided transmission signal according to the number of divisions determined by the determination unit (117).

摘要翻译： 公开了一种无线通信基站装置和分割数确定方法，无论来自无线通信终端装置的发送信号的频域中的分割数如何，都能够在保持信道估计精度的同时提高频率分集效应。 确定单元（117）确定来自无线通信终端设备的发送信号的频域中的分割数。 这里，随着发送信号中包含的导频块的数量的增加，决定单元117增加来自无线通信终端装置的发送信号的频域的分割数。 此外，调度单元（118）根据由确定单元（117）确定的分割数来调度分配的发送信号的频率资源。

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：US20090150740A1

公开(公告)日：2009-06-11

申请号：US12089700

申请日：2006-10-03

申请人： Takashi Iwai ,  Sadaki Futagi ,  Atsushi Matsumoto ,  Kenichi Miyoshi

发明人： Takashi Iwai ,  Sadaki Futagi ,  Atsushi Matsumoto ,  Kenichi Miyoshi

IPC分类号： H04L1/18 ,  G06F11/14

CPC分类号： H04L1/1819 ,  H04L1/0015 ,  H04L1/1825 ,  H04W52/16 ,  H04W52/221 ,  H04W52/247 ,  H04W52/367

摘要： A transmitting apparatus and a transmitting method wherein the systematic bit reception quality can be improved and the throughput performance can be improved. An IR parameter control part (101) controls, based on the number of retransmissions, the ratio of systematic bits to parity bits in mapping them to packets, and controls to map a parity bit to an initially transmitted packet, while mapping a systematic bit to a retransmitted packet. An encoding part (102) generates the systematic bits and parity bits and maps them to the packets in accordance with the IR parameters. A transmission power calculating part (105) calculates, based on reception quality information of the initially transmitted packet fed back from a receiving end, the transmission power of the transmitted packet to which the systematic bit is mapped. A transmission power control part (106) controls the transmission power of the retransmitted packet such that it is equal to the transmission power as calculated by the transmission power calculating part (105).

摘要翻译： 一种发送装置和发送方法，其中可以提高系统比特接收质量并且可以提高吞吐量性能。 IR参数控制部分（101）基于重发次数来控制系统比特与奇偶校验位的比率，将它们映射到分组，并且控制将奇偶校验位映射到初始发送的分组，同时将系统比特映射到 重发数据包。 编码部分（102）生成系统比特和奇偶校验比特，并根据IR参数将它们映射到分组。 发送功率计算部（105）基于从接收端反馈的初始发送分组的接收质量信息，计算发送的分组的发送功率，系统比特被映射到该发送功率。 发送功率控制部（106）控制重发分组的发送功率，使其等于由发送功率计算部（105）计算出的发送功率。

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：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：US07844881B2

公开(公告)日：2010-11-30

申请号：US12089700

申请日：2006-10-03

申请人： Takashi Iwai ,  Sadaki Futagi ,  Atsushi Matsumoto ,  Kenichi Miyoshi

发明人： Takashi Iwai ,  Sadaki Futagi ,  Atsushi Matsumoto ,  Kenichi Miyoshi

IPC分类号： H03M13/00

CPC分类号： H04L1/1819 ,  H04L1/0015 ,  H04L1/1825 ,  H04W52/16 ,  H04W52/221 ,  H04W52/247 ,  H04W52/367

摘要： A transmitting apparatus and a transmitting method wherein the systematic bit reception quality can be improved and the throughput performance can be improved. An IR parameter control part (101) controls, based on the number of retransmissions, the ratio of systematic bits to parity bits in mapping them to packets, and controls to map a parity bit to an initially transmitted packet, while mapping a systematic bit to a retransmitted packet. An encoding part (102) generates the systematic bits and parity bits and maps them to the packets in accordance with the IR parameters. A transmission power calculating part (105) calculates, based on reception quality information of the initially transmitted packet fed back from a receiving end, the transmission power of the transmitted packet to which the systematic bit is mapped. A transmission power control part (106) controls the transmission power of the retransmitted packet such that it is equal to the transmission power as calculated by the transmission power calculating part (105).

摘要翻译： 一种发送装置和发送方法，其中可以提高系统比特接收质量并且可以提高吞吐量性能。 IR参数控制部分（101）基于重发次数来控制系统比特与奇偶校验位的比率，将它们映射到分组，并且控制将奇偶校验位映射到初始发送的分组，同时将系统比特映射到 重发数据包。 编码部分（102）生成系统比特和奇偶校验比特，并根据IR参数将它们映射到分组。 发送功率计算部（105）基于从接收端反馈的初始发送分组的接收质量信息，计算发送的分组的发送功率，系统比特被映射到该发送功率。 发送功率控制部（106）控制重发分组的发送功率，使其等于由发送功率计算部（105）计算出的发送功率。

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：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.

公开(公告)号：US08750235B2

公开(公告)日：2014-06-10

申请号：US13614417

申请日：2012-09-13

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： H04W72/00 ,  H04W72/04

CPC分类号： H04W74/0833 ,  H04B1/707 ,  H04B1/7083 ,  H04B2201/70702 ,  H04B2201/70713 ,  H04J13/0062 ,  H04J13/102 ,  H04J13/22 ,  H04L5/0048 ,  H04L23/02 ,  H04L27/2613 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0875

摘要： A sequence allocating method and apparatus wherein in a system where a plurality of different Zadoff-Chu sequences or GCL sequences are allocated to a single cell, the arithmetic amount and circuit scale of a correlating circuit at a receiving end can be reduced. In ST201, a counter (a) and a number (p) of current sequence allocations are initialized, and in ST202, it is determined whether the number (p) of current sequence allocations is coincident with a number (K) of allocations to one cell. In ST203, it is determined whether the number (K) of allocations to the one cell is odd or even. If K is even, in ST204-ST206, sequence numbers (r=a and r=N−a), which are not currently allocated, are combined and then allocated. If K is odd, in ST207-ST212, for sequences that cannot be paired, one of sequence numbers (r=a and r=N−a), which are not currently allocated, is allocated.

摘要翻译： 一种序列分配方法和装置，其中在将多个不同的Zadoff-Chu序列或GCL序列分配给单个小区的系统中，可以减少接收端的相关电路的算术量和电路规模。 在ST201中，初始化当前序列分配的计数器（a）和数量（p），并且在ST202中，确定当前序列分配的数量（p）是否与一个分配的数量（K）一致 细胞。 在ST203中，确定对一个单元的分配的数量（K）是奇数还是偶数。 如果K是偶数，则在ST204-ST206中，组合然后分配未被分配的序列号（r = a和r = N-a）。 如果K是奇数，则在ST207-ST212中，对于不能配对的序列，分配未分配的序列号（r = a和r = N-a）中的一个。