公开(公告)号：US20120026948A1

公开(公告)日：2012-02-02

申请号：US13124811

申请日：2009-10-15

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

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

IPC: H04W72/04

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

Abstract: 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).

Abstract translation: 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：US08086927B2

公开(公告)日：2011-12-27

申请号：US11909415

申请日：2006-03-27

Applicant: Masayuki Hoshino ,  Ryohei Kimura ,  Yasuaki Yuda ,  Tomohiro Imai ,  Kenichi Miyoshi

Inventor： Masayuki Hoshino ,  Ryohei Kimura ,  Yasuaki Yuda ,  Tomohiro Imai ,  Kenichi Miyoshi

IPC: G08C25/02 ,  G06F11/10

CPC classification number: H04L1/0009 ,  H04L1/0071 ,  H04L1/08 ,  H04L1/1812

Abstract: A MIMO transmitting apparatus that achieves a flexible control in accordance with variation of a propagation environment to reduce the number of retransmissions is disclosed. An intra-code-word interleaver performs an interleave process on bits included in symbols to be simultaneously transmitted from a plurality of transmitting antennas. When performing the intra-code-word interleave process, the intra-code-word interleaver performs the interleave process in accordance with an interleave pattern notified from an interleave pattern table. A counter counts a number of retransmission requests, and outputs the number of retransmission requests to the interleave pattern table. The interleave pattern table stores interleave patterns to be used for the intra-code-word interleave process for the respective numbers of retransmission requests, and notifies the intra-code-word interleaver of an interleave pattern in accordance with the number of retransmission requests.

Abstract translation: 公开了一种根据传播环境的变化实现灵活控制以减少重发次数的MIMO发送装置。 码内字交错器对从多个发送天线同时发送的符号中包含的比特执行交织处理。 当执行码内字交错处理时，帧内码交织器根据从交织模式表通知的交织模式进行交织处理。 计数器对多个重传请求进行计数，并将重传请求的次数输出到交织模式表。 交织模式表存储用于各个重发请求次数的码内字交织处理的交织模式，并根据重发请求次数通知码内字交织器交织模式。

公开(公告)号：US08081702B2

公开(公告)日：2011-12-20

申请号：US12280677

申请日：2007-02-28

Applicant: Masayuki Hoshino ,  Kenichi Miyoshi ,  Yasuaki Yuda ,  Katsuhiko Hiramatsu ,  Ryohei Kimura

Inventor： Masayuki Hoshino ,  Kenichi Miyoshi ,  Yasuaki Yuda ,  Katsuhiko Hiramatsu ,  Ryohei Kimura

IPC: H04B7/02

CPC classification number: H04B7/0626 ,  H04B7/0417 ,  H04B7/0434 ,  H04B7/063 ,  H04B7/0689

Abstract: It is possible to prevent lowering of a throughput of a radio communication system even when propagation path environments of an uplink line and downlink line are asymmetric. A maximum proper value calculation unit (115) calculates a maximum proper value from a channel matrix. A maximum proper value comparison unit (116) compares the maximum proper value with a maximum proper value of the downlink line reported separately from a base station. According to the comparison result obtained by the maximum proper value comparison unit (116), a proper mode initiative instruction unit (117) decides to pass the proper mode initiative to a communication partner or to the local device. When the initiative is to be passed to the local device, this fact is reported to a proper bam correction unit (118). When the proper beam correction unit (118) gets the proper mode initiative, the proper beam correction unit (118) corrects the correlation matrix by using the proper values of both of the downlink line and the uplink line and instructs a directivity forming unit (103) to form a proper beam according to the correlation matrix after the correction.

Abstract translation: 即使上行链路和下行链路的传播路径环境不对称，也可以防止无线通信系统的吞吐量的降低。 最大适当值计算单元（115）从信道矩阵计算最大适当值。 最大适当值比较单元（116）将最大适当值与从基站分开报告的下行线路的最大适当值进行比较。 根据由最大适当值比较单元（116）获得的比较结果，正确的模式主动指示单元（117）决定将适当的模式主动通过通信对方或本地设备。 当该举措传递给本地设备时，这一事实报告给适当的巴姆纠正单位（118）。 当正确的光束校正单元（118）获得适当的模式主动时，适当的光束校正单元（118）通过使用下行链路线路和上行线路两者的适当值来校正相关矩阵，并且指示方向性形成单元（103 ）根据校正后的相关矩阵形成适当的波束。

公开(公告)号：US08000295B2

公开(公告)日：2011-08-16

申请号：US12965641

申请日：2010-12-10

Applicant: Jun Cheng ,  Akihiko Nishio ,  Kenichi Miyoshi

Inventor： Jun Cheng ,  Akihiko Nishio ,  Kenichi Miyoshi

IPC: H04W4/00

CPC classification number: H04W72/0413 ,  H04W36/16 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/087 ,  H04W72/10 ,  H04W74/004 ,  H04W74/0833 ,  H04W88/08

Abstract: There are disclosed a random access method for establishing an individual channel between a radio communication terminal device and a base station device in a short time and a radio communication terminal device executing the random access method. In this device, in step ST320, a RACH sub-channel allocation unit (211) allocates a transmission packet inputted from a replication unit (202) to an arbitrary sub-carrier at the RACH arbitrary time slot at random. In step ST330, an allocation unit (210) judges whether an overlap is generated in the allocation result obtained by the RACH sub-channel allocation unit (211). When the allocation unit (210) judges that an overlap is generated in the allocation result, the allocation unit (210) causes one of the RACH sub-channel allocation units (211) which has caused the overlap to again perform allocation of step ST320. On the other hand, when judgment is made that no overlap is generated in the allocation result, step ST340 is executed.

Abstract translation: 公开了一种用于在短时间内在无线电通信终端设备和基站设备之间建立单独信道的随机接入方法和执行随机接入方法的无线电通信终端设备。 在该装置中，在步骤ST320中，RACH子信道分配单元（211）随机地将从复制单元（202）输入的发送分组分配给RACH任意时隙的任意子载波。 在步骤ST330中，分配单元（210）判断在由RACH子信道分配单元（211）获得的分配结果中是否生成了重叠。 当分配单元（210）判定在分配结果中产生重叠时，分配单元（210）使引起重叠的RACH子信道分配单元（211）中的一个再次执行步骤ST320的分配。 另一方面，当判断在分配结果中没有产生重叠时，执行步骤ST340。

公开(公告)号：US07953197B2

公开(公告)日：2011-05-31

申请号：US11917758

申请日：2006-06-15

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

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

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

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

Abstract: 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.

Abstract translation: 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：US07953013B2

公开(公告)日：2011-05-31

申请号：US12430357

申请日：2009-04-27

Applicant: Kenichi Miyoshi

Inventor： Kenichi Miyoshi

IPC: H04J3/16

CPC classification number: H04L1/0016 ,  H04B7/2659 ,  H04L1/0001 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025

Abstract: A transmission apparatus and method updates a communication mode selection table that updates a communication mode selection table correctly and selects an optimal MCS according to an actual channel condition. A buffer temporarily stores calibration data to be transmitted for updating a table. A scheduler performs scheduling of data to be transmitted based on a CIR on a downlink reported from a plurality of communication terminal apparatuses. When there is no data to be transmitted, the scheduler sends calibration data from the buffer. When calibration data is transmitted as a result of the scheduling, the scheduler notifies an address information generation section of the communication terminal apparatus to which the calibration data is transmitted. In one mode, first data is transmitted from a first communication apparatus to another communication apparatus, the first communication apparatus receives from the other communication apparatus, information on an error rate when the other communication apparatus receives the first data; and the first communication apparatus transmits second data to the other communication apparatus based on a communication mode determined using the information on the error rate.

Abstract translation: 发送装置和方法更新正确更新通信模式选择表的通信模式选择表，并根据实际信道条件选择最佳MCS。 缓冲器临时存储要发送用于更新表的校准数据。 调度器基于从多个通信终端装置报告的下行链路上的CIR进行要发送的数据的调度。 当没有要发送的数据时，调度器从缓冲器发送校准数据。 当作为调度的结果发送校准数据时，调度器通知发送校准数据的通信终端装置的地址信息生成部。 在一种模式中，第一数据从第一通信装置发送到另一通信装置，第一通信装置从另一通信装置接收另一通信装置接收第一数据时的错误率信息; 并且第一通信装置基于使用关于错误率的信息确定的通信模式向第二通信装置发送第二数据。

公开(公告)号：US07949058B2

公开(公告)日：2011-05-24

申请号：US11908100

申请日：2006-03-10

Applicant: Kenichi Miyoshi ,  Akihiko Nishio ,  Yuichi Kobayakawa

Inventor： Kenichi Miyoshi ,  Akihiko Nishio ,  Yuichi Kobayakawa

IPC: H04L27/28 ,  H04K1/10

CPC classification number: H04L27/2628 ,  H04L1/08 ,  H04L27/2602 ,  H04L27/265

Abstract: A radio receiver apparatus and a radio transmitter apparatus wherein the energy loss caused by addition of GI is suppressed, while the reception quality is improved. A signal having been subjected to an IFFT process is repetitively transmitted N times with a length of one OFDM symbol interval. At a receiver apparatus receiving the transmitted signals, a leading data extracting part (207) extracts, from the leading data portions of the direct waves of the received signals, portions that are not interfered with by temporally adjacent data. A combing part (209) combines the received signals in such a manner that align the rear end of each repetitively transmitted data portion except the leading data portion with the rear end of the leading data portion extracted by the leading data extracting part (207). The combined signal is then subjected to an FFT process in an FFT part (210).

Abstract translation: 无线电接收装置和无线电发射装置，其中抑制了由添加GI引起的能量损失，同时提高了接收质量。 经过IFFT处理的信号以一个OFDM符号间隔的长度重复发送N次。 在接收发送信号的接收装置中，前导数据提取部（207）从接收信号的直接波的前导数据部分中提取不受时间相邻数据干扰的部分。 梳理部（209）将接收到的信号组合成将前导数据部分以外的重复发送的数据部分的后端与前导数据提取部（207）提取的前导数据部分的后端对齐。 然后，组合的信号在FFT部分（210）中进行FFT处理。

公开(公告)号：US07940728B2

公开(公告)日：2011-05-10

申请号：US11909922

申请日：2006-03-29

Applicant: Ayako Horiuchi ,  Kenichi Miyoshi ,  Hiroaki Morino

Inventor： Ayako Horiuchi ,  Kenichi Miyoshi ,  Hiroaki Morino

IPC: H04B7/216

CPC classification number: H04L25/20 ,  H04B7/155 ,  H04L25/242 ,  H04L27/0008 ,  H04L27/0012

Abstract: A wireless communication method capable of preventing reduction of the throughput. According to this wireless communication method, in a frame (2), a relay station (1) decides that the amount of delay to be Δt2 because the modulation scheme of a relayed signal is 16 QAM, while another relay station (2) decides that the delay amount be Δt4 because the modulation scheme of a relayed signal is QPSK. The relay station (1) transmits, at Δt2 of the frame (2), the relayed signal, the modulation scheme of which is 16 QAM, to abase station. On the other hand, the relay station (2) detects, by Δt4, the fact that the relay station (1) transmitted the relayed signal at Δt2, and estimates, from the detected fact, that the modulation scheme used by the relay station (1) was 16 QAM. The relay station (2) then updates its modulation scheme from the initially established modulation scheme of QPSK to the same modulation scheme of 16 QAM as the relay station (1), and modulates the relayed signal by use of 16 QAM and then transmits it to the base station.

Abstract translation: 一种能够防止吞吐量降低的无线通信方法。 根据该无线通信方法，在帧（2）中，由于中继信号的调制方式为16QAM，所以中继站（1）将延迟量判定为＆Dgr; t2，而另一个中继站（2） 由于中继信号的调制方式为QPSK，所以判定延迟量为＆Dgr; t4。 中继站（1）在帧（2）的＆Dgr t2发送其调制方案为16QAM的中继信号到中继站。 另一方面，中继站（2）通过＆Dgr; t4检测中继站（1）在＆Dgr; t2发送中继信号的事实，并从检测到的事实估计出所使用的调制方案 中继站（1）为16 QAM。 中继站（2）然后将其调制方案从最初建立的QPSK调制方案更新为与中继站（1）相同的16QAM调制方案，并通过使用16QAM对中继信号进行调制，然后将其发送到 基站。

公开(公告)号：US20110096877A1

公开(公告)日：2011-04-28

申请号：US12920030

申请日：2009-03-05

Applicant: Ryohei Kimura ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu

Inventor： Ryohei Kimura ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu

IPC: H04L1/02

CPC classification number: H04L1/003 ,  H04L1/0026 ,  H04L1/0029 ,  H04L1/06 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0248 ,  H04W72/0413 ,  H04W72/085

Abstract: Disclosed is a wireless receiver and feedback method for reducing the amount of CQI feedback in a MIMO channel. A channel estimation unit (103) uses a received pilot signal to estimate the channel matrix for each RB between respective transceiver antennas, and then performs eigenvalue decomposition of the estimated channel matrix to find eigenvalues and eigenvectors. A feedback data generator (104) is provided with a feedback bit table that correlates the number of quantized bits for the averaged CQI to be transmitted for each eigenvalue and the number of quantized bits for the CQI in each RB, and then reduces the number of quantized bits for the averaged CQI Xk commensurate with the magnitude of the eigenvalue number k. The feedback data generator (104) averages eigenvalues found by the channel estimator (103) for each RB, converts the averaged eigenvalue to a CQI for each eigenvalue number, and generates feedback data from the CQI for each eigenvalue with the number of quantized bits according to the feedback table.

Abstract translation: 公开了一种用于减少MIMO信道中的CQI反馈量的无线接收机和反馈方法。 信道估计单元（103）使用接收到的导频信号来估计各个收发天线之间的每个RB的信道矩阵，然后执行所估计的信道矩阵的特征值分解以找到特征值和特征向量。 反馈数据生成器（104）具有将每个特征值要发送的平均CQI的量化比特数与每个RB中的CQI的量化比特数相关联的反馈比特表，然后减少 用于与特征值k的大小相称的平均CQI Xk的量化比特。 反馈数据生成器（104）对于每个RB对由信道估计器（103）找到的特征值进行平均，将每个特征值数的平均特征值转换为CQI，并且针对每个具有量化比特数的特征值的CQI生成反馈数据， 到反馈表。

公开(公告)号：US20110096761A1

公开(公告)日：2011-04-28

申请号：US12921549

申请日：2009-03-12

Applicant: Yoshiko Saito ,  Ayako Horiuchi ,  Seigo Nakao ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Yuichi Kobayakawa

Inventor： Yoshiko Saito ,  Ayako Horiuchi ,  Seigo Nakao ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Yuichi Kobayakawa

IPC: H04B7/00 ,  H04W4/00

CPC classification number: H04L5/003 ,  H04B7/022 ,  H04B7/026 ,  H04B7/15592 ,  H04B7/2606 ,  H04L1/1812 ,  H04L1/1893 ,  H04L5/0035 ,  H04L2001/0097 ,  H04W72/0406 ,  H04W84/047

Abstract: There are provided a communication device, a base station, a communication system, and a communication method that make it possible to yield a diversity effect by cooperative relay without involvement of disproportionateness in data received by an eNB even when one of parties has unsuccessfully exchanged data. After received an ACK signal from a repeater 1, a repeater 2 which has transmitted a NACK signal in procedure 7 transmits data S2 to the eNB by use of its own resource, thereby making its own resource available for the repeater 1 (the repeater 2 does not use its own resource, and the repeater 1 uses the resource of the repeater 2). In procedures 8, the repeater 1 has received the NACK signal from the repeater 2 and subsequently transmits data S1 to the eNB by use of its own resource. Subsequently, the repeater 1 which has received the MACK signal in procedure 9 determines that the resource of the repeater 2 is available and transmits data P1 to the eNB by use of the resource of the repeater 2. In procedure 10, the repeater 1 transmits previously-generated data P2 to the eNB by use of its own resource.

Abstract translation: 提供了一种通信设备，基站，通信系统和通信方法，其可以通过协同中继产生分集效应，而不涉及由eNB接收的数据中的不成比例，即使当一方有成功交换的数据 。 在从中继器1接收到ACK信号之后，在过程7中发送了NACK信号的中继器2通过使用其自己的资源向eNB发送数据S2，从而使其自己的资源可用于中继器1（中继器2 不使用自己的资源，中继器1使用中继器的资源2）。 在过程8中，中继器1已经从中继器2接收到NACK信号，并且随后利用自己的资源向eNB发送数据S1。 随后，在过程9中接收到MACK信号的中继器1确定中继器2的资源可用，并且通过使用中继器2的资源将数据P1发送到eNB。在过程10中，中继器1先前 生成的数据P2通过使用其自己的资源到eNB。