公开(公告)号：US08532160B2

公开(公告)日：2013-09-10

申请号：US13651014

申请日：2012-10-12

申请人： Seigo Nakao ,  Daichi Imamura ,  Katsuhiko Hiramatsu

发明人： Seigo Nakao ,  Daichi Imamura ,  Katsuhiko Hiramatsu

IPC分类号： H04B1/707

CPC分类号： H04J11/005 ,  H04B1/713 ,  H04J13/0059 ,  H04J13/0074 ,  H04L5/0055 ,  H04L5/0057 ,  H04L5/0073 ,  H04W72/0413 ,  H04W72/042 ,  H04W88/08

摘要： A radio communication device capable of randomizing both inter-cell interference and intra-cell interference. In this device, a spreading section primarily spreads a response signal in a ZAC sequence set by a control unit. A spreading section secondarily spreads the primarily spread response signal in a block-wise spreading code sequence set by the control unit. The control unit controls the cyclic shift amount of the ZAC sequence used for the primary spreading in the spreading section and the block-wise spreading code sequence used for the secondary spreading in the spreading section according to a set hopping pattern. The hopping pattern set by the control unit is made up of two hierarchies. An LB-based hopping pattern different for each cell is defined in the first hierarchy in order to randomize the inter-cell interference. A hopping pattern different for each mobile station is defined in the second hierarchy to randomize the intra-cell interference.

公开(公告)号：US08379750B2

公开(公告)日：2013-02-19

申请号：US12664953

申请日：2008-06-24

申请人： Masayuki Hoshino ,  Katsuhiko Hiramatsu ,  Yasuaki Yuda ,  Ryohei Kimura

发明人： Masayuki Hoshino ,  Katsuhiko Hiramatsu ,  Yasuaki Yuda ,  Ryohei Kimura

IPC分类号： H04B7/02

CPC分类号： H04B7/0617 ,  H04B7/0408 ,  H04B7/0417

摘要： The signaling amount in selecting a plurality of beams is reduced in pre-coding to thereby enhance the throughput. To select a plurality of beams when the pre-coding is applied, when notification of a beam number is provided in a feedback signal from a user equipment 102 as a reception station to a radio base station 101 as a transmission station, a superior beam number having a high quality rank with small time variation is bound up and fixed for a predetermined time period and notification of only a inferior beam number is provided within the time period. For example, to select three beams from six beams, first, notification of the superior two beam numbers (beam numbers ‘b’ and ‘c’) is provided and the superior beam numbers are fixed for a predetermined time period and then notification of only the inferior one beam number (beam number ‘e’) is provided within the predetermined time period for reducing the signaling amount for providing beam number notification.

摘要翻译： 在预编码中减少了选择多个光束的信令量，从而提高了吞吐量。 为了在应用预编码时选择多个波束，当在作为接收站的用户设备102作为发送站的无线基站101的反馈信号中提供波束号的通知时，优先的波束号 具有小时间变化的高质量等级被约束并固定预定时间段，并且在该时间段内提供仅次于较差波束号的通知。 例如，为了从六个光束中选择三个光束，首先提供上述两个光束号（光束号b和c）的通知，并且将上级光束号固定预定的时间段，然后仅通知下一个光束 在预定时间段内提供数字（波束编号e），以减少用于提供波束号通知的信令量。

公开(公告)号：US08374276B2

公开(公告)日：2013-02-12

申请号：US12518787

申请日：2007-12-07

申请人： Masayuki Hoshino ,  Katsuhiko Hiramatsu

发明人： Masayuki Hoshino ,  Katsuhiko Hiramatsu

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04B7/068 ,  H04B7/04 ,  H04L1/1867

摘要： A synthesized gain in a resending operation can be improved significantly by relatively simple control when resending control is applied upon executing of a transmission diversity using CDD. A radio communication apparatus equipped with a plurality of antennas and for performing communication by MIMO, includes a phase shift amount assigning section 18 for executing a CDD process to assign a cyclic phase shift to a transmission signal on a frequency axis, a response signal demodulator 16 for demodulating ACK/NACK received from a destination station, and outputting control information about a resending operation when NACK is received and a reception is failed, and an initial phase controller 17 for setting an offset to a phase shift at a time of CDD process in response to a number of transmission times in resending control such that a predetermined offset, which is produced by adding a phase difference from a signal transmitted from other antenna to the phase shift, is assigned to a signal transmitted from the antenna over a full frequency band, wherein a frequency characteristic of a radio propagation path at a time of resending is changed every time of transmission times.

摘要翻译： 通过在执行使用CDD的传输分集时重新执行控制时，通过相对简单的控制可以显着地改善重新发送操作中的合成增益。 配备有多个天线并用于通过MIMO进行通信的无线电通信装置包括：相移量分配部分18，用于执行CDD处理以向频率轴上的发送信号分配循环相移;响应信号解调器16 用于解调从目的地站接收的ACK / NACK，并且当接收到NACK并且接收失败时，输出关于重新发送操作的控制信息;以及初始相位控制器17，用于在CDD处理时将偏移设置为相移 响应于重发控制中的多个发送时间，使得通过将从其他天线发送的信号相加到相移而产生的预定偏移被分配给在全频带上从天线发送的信号 其中，每次发送时间改变重发时的无线传播路径的频率特性。

公开(公告)号：US08351538B2

公开(公告)日：2013-01-08

申请号：US12673000

申请日：2008-08-12

申请人： Seigo Nakao ,  Daichi Imamura ,  Yoshihiko Ogawa ,  Atsushi Matsumoto ,  Katsuhiko Hiramatsu

发明人： Seigo Nakao ,  Daichi Imamura ,  Yoshihiko Ogawa ,  Atsushi Matsumoto ,  Katsuhiko Hiramatsu

IPC分类号： H04L27/00

CPC分类号： H04L5/0057 ,  H04B1/7075 ,  H04J11/0023 ,  H04J13/0062 ,  H04J13/0074 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/1607 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0055 ,  H04L27/00 ,  H04W24/02 ,  H04W72/0413 ,  H04W72/0446

摘要： It is possible to improve the CQI reception performance even when a delay is caused in a propagation path, a transmission timing error is caused, or a residual interference is generated between cyclic shift amounts of different ZC sequences. For the second symbol and the sixth symbol of the ACK/NACK signal which are multiplexed by RS of CQI, (+, +) or (−, −) is applied to a partial sequence of the Walsh sequence. For RS of CQI transmitted from a mobile station, + is added as an RS phase of the second symbol and − is added as an RS phase of the sixth symbol. A base station (100) receives multiplexed signals of ACK/NACK signals and CQI signals transmitted from a plurality of mobile stations. An RS synthesis unit (119) performs synthesis by aligning the RS phase of CQI.

摘要翻译： 即使在传播路径中引起延迟，导致发送定时误差，或者在不同ZC序列的循环移位量之间产生残留干扰，也可以提高CQI接收性能。 对于由CQI的RS复用的ACK / NACK信号的第二符号和第六符号，（+，+）或（ - ， - ）被应用于沃尔什序列的部分序列。 对于从移动站发送的CQI的RS，将+作为第二符号的RS相位相加，并且作为第六符号的RS相加。 基站（100）接收从多个移动台发送的ACK / NACK信号和CQI信号的复用信号。 RS合成单元（119）通过对齐CQI的RS相位进行合成。

公开(公告)号：US08145231B2

公开(公告)日：2012-03-27

申请号：US12968139

申请日：2010-12-14

申请人： Atsushi Matsumoto ,  Daichi Imamura ,  Takashi Iwai ,  Yoshihiko Ogawa ,  Tomofumi Takata ,  Katsuhiko Hiramatsu

发明人： Atsushi Matsumoto ,  Daichi Imamura ,  Takashi Iwai ,  Yoshihiko Ogawa ,  Tomofumi Takata ,  Katsuhiko Hiramatsu

IPC分类号： H04W72/08 ,  H04W72/04

CPC分类号： H04L5/0057 ,  H04J11/0023 ,  H04L5/001 ,  H04L5/0012 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0062 ,  H04L27/2657 ,  H04L27/2662 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/085 ,  H04W72/1268 ,  H04W84/042

摘要： Provided is a radio communication device which can prevent interference between SRS and PUCCH when the PUCCH transmission bandwidth fluctuates and suppress degradation of CQI estimation accuracy by the band where no SRS is transmitted. The device includes: an SRS code generation unit (201) which generates an SRS (Sounding Reference Signal) for measuring uplink line data channel quality; an SRS arrangement unit (202) which frequency-multiplexes the SRS on the SR transmission band and arranges it; and an SRS arrangement control unit (208) which controls SRS frequency multiplex so as to be uniform in frequency without modifying the bandwidth of one SRS multiplex unit in accordance with the fluctuation of the reference signal transmission bandwidth according to the SRS arrangement information transmitted from the base station and furthermore controls the transmission interval of the frequency-multiplexed SRS.

摘要翻译： 提供一种当PUCCH传输带宽波动时能够防止SRS与PUCCH之间的干扰的无线通信装置，并且通过不发送SRS的频带来抑制CQI估计精度的劣化。 该装置包括：SRS代码生成单元，生成用于测量上行线路数据信道质量的SRS（探测参考信号）; 在SR传输频带上对SRS进行频率复用并布置的SRS布置单元（202）; 以及SRS配置控制单元（208），其根据从所述SRS配置信息发送的SRS配置信息，根据所述参考信号传输带宽的波动来调整SRS频率复用以使其频率均匀，而不修改一个SRS多路复用单元的带宽 并且进一步控制频率复用SRS的发送间隔。

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。

公开(公告)号：US20110170425A1

公开(公告)日：2011-07-14

申请号：US12993595

申请日：2009-05-13

申请人： Ayako Horiuchi ,  Seigo Nakao ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Hiroaki Morino

发明人： Ayako Horiuchi ,  Seigo Nakao ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Hiroaki Morino

IPC分类号： H04L12/26 ,  H04J3/08

CPC分类号： H04L1/1867 ,  H04B7/026 ,  H04B7/155 ,  H04B7/15592 ,  H04L2001/0097 ,  H04W40/22 ,  H04W72/08 ,  H04W84/047

摘要： Disclosed is a radio communication device capable of improving the usage efficiency of resources in multi-stage relay to reduce the amount of delay of a relay signal and improving the reception quality of signals by a relay station or a base station. A transmission determining unit 16 determines whether to transmit the relay signal and whether to transmit ACK/NACK on the basis of whether there is an error in the relay signal, and on the basis of ACK/NACK received from a one-hop-downstream radio communication device. An MCS determining unit 17 provided in the transmission determining unit 16 determines an MCS for the relay signal. A transmission instruction generated by the transmission determining unit 16 is output to a buffer 11 and an ACK/NACK generating unit 19. The determined MCS is output to an error correction coding unit 12 and a modulation unit 13. The ACK/NACK generating unit 19 generates ACK when there is no error in the relay signal, and generates NACK when there is an error in the relay signal.

摘要翻译： 公开了能够提高多级继电器中的资源的使用效率的无线通信装置，以减少中继信号的延迟量，并且提高中继站或基站对信号的接收质量。 传输确定单元16基于中继信号中是否存在错误，并且基于从一跳下行无线电接收的ACK / NACK来确定是否发送中继信号以及是否发送ACK / NACK 通讯装置 设在发送判定部16中的MCS判定部17判定为继电器信号的MCS。 由发送确定单元16产生的发送指令被输出到缓冲器11和ACK / NACK生成单元19.所确定的MCS被输出到纠错编码单元12和调制单元13. ACK / NACK生成单元19 当继电器信号没有错误时，产生ACK，当继电器信号发生错误时，产生NACK。

公开(公告)号：US07961695B2

公开(公告)日：2011-06-14

申请号：US12522781

申请日：2008-01-11

申请人： Masaru Fukuoka ,  Akihiko Nishio ,  Seigo Nakao ,  Katsuhiko Hiramatsu

发明人： Masaru Fukuoka ,  Akihiko Nishio ,  Seigo Nakao ,  Katsuhiko Hiramatsu

IPC分类号： H04B7/216

CPC分类号： H04L1/001 ,  H04J11/0026 ,  H04J13/16 ,  H04L1/0004 ,  H04L1/0026 ,  H04L1/0038 ,  H04L1/1812 ,  H04L5/0053 ,  H04W52/262 ,  H04W52/325 ,  H04W52/346 ,  H04W72/0466

摘要： Provided is a radio communication base station device capable of suppressing degradation of a signal error ratio characteristic for a mobile station in the vicinity of the cell center when a plurality of signals whose transmission power is to be controlled are frequency-multiplexed or code-multiplexed. In the device (100), a classification unit (118) classifies a plurality of DPCCH according to the MCS of SCCH into a plurality of groups based on the transmission power intensity. A spread code is allocated for each DPCCH according to the classification result. A spread code for spreading a response signal (ACK signal/NACK signal) is instructed to spread units (103-1 to 103-n). The spread units (103-1 to 103-n) spread the response signal by the spread code instructed from the classification unit (118). According to the classification result in the classification unit (118), a mapping unit (104) maps the response signal after the spread to one of the subcarriers constituting the OFDM symbol.

摘要翻译： 提供一种无线通信基站装置，其能够抑制当发送功率要被控制的多个信号被频率复用或码复用时，小区中心附近的移动台的信号差错率特性的劣化。 在设备（100）中，分类单元（118）基于发送功率强度将根据SCCH的MCS的多个DPCCH分类为多个组。 根据分类结果为每个DPCCH分配扩频码。 指示用于扩展响应信号（ACK信号/ NACK信号）的扩展码扩展单元（103-1至103-n）。 扩展单元（103-1至103-n）通过从分类单元（118）指示的扩展码扩展响应信号。 根据分类单元（118）的分类结果，映射单元（104）将扩展后的响应信号映射到构成OFDM符号的子载波之一。

公开(公告)号：US20110105016A1

公开(公告)日：2011-05-05

申请号：US12919366

申请日：2009-02-26

申请人： Yoshiko Saito ,  Takashi Aramaki ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Hideshi Taki ,  Daichi Imamura ,  Ayako Horiuchi ,  Yuichi Kobayakawa

发明人： Yoshiko Saito ,  Takashi Aramaki ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Hideshi Taki ,  Daichi Imamura ,  Ayako Horiuchi ,  Yuichi Kobayakawa

IPC分类号： H04B3/36

CPC分类号： H04B7/15507 ,  H04B7/2606 ,  H04W28/06 ,  H04W36/06 ,  H04W88/04

摘要： Provided is a mobile communication system capable of eliminating the use of a control channel for transmitting specific area information and suppressing the overhead caused by a frequency change process for a mobile station to receive the specific area information. In the mobile communication system, a relay station (20) has a coverage area (21) (specific area) and relays and transmits, in the coverage area (21), a signal received from a base station (10) to a mobile station (30). The relay station (20) adds, to the signal received from the base station (10), the offset of any of a frequency offset, a time offset, and a power offset depending on a risk indicated by risk information in the coverage area (21) (specific area) and transmits the signal after the addition of the offset to the mobile station (30) located in the coverage area (21).

摘要翻译： 提供一种能够消除用于发送特定区域信息的控制信道的使用并且抑制由移动站接收特定区域信息的频率变化处理引起的开销的移动通信系统。 在移动通信系统中，中继站（20）具有覆盖区域（21）（特定区域），并且在覆盖区域（21）中中继发送从基站（10）向移动台 （30）。 中继站（20）根据由覆盖区域（10）中的风险信息所指示的风险，将从基站（10）接收到的信号中的任何偏移，时间偏移和功率偏移相加， 21）（特定区域），并且在添加偏移之后将信号发送到位于覆盖区域（21）中的移动站（30）。

公开(公告)号：US20100251057A1

公开(公告)日：2010-09-30

申请号：US12744120

申请日：2008-09-04

申请人： Masayuki Hoshino ,  Katsuhiko Hiramatsu

发明人： Masayuki Hoshino ,  Katsuhiko Hiramatsu

IPC分类号： H04L1/18 ,  G06F11/14

CPC分类号： H04L1/1812 ,  H04L1/0048 ,  H04L1/06 ,  H04L1/1845 ,  H04L1/1854

摘要： Information on other code words can be utilized at the time of retransmitting, and transmission characteristics of the case of using multiple code words are improved. In a radio communication apparatus for transmitting data using multiple code words, as response time taken by a transmitting station to receive a response signal (Ack/Nack signal) after the data is transmitted from the transmitting station (BS) to a receiving station (UE), a cycle of second response time (RTT2) corresponding to a low-order code word is longer than a cycle of first response time (RTT1) corresponding to a high-order code word. In the receiving station, received data of the low-order code word is decoded using at least one of retransmission data and the first received data of the high-order code word and response signals are respectively generated according to a decoding result of each of the code words and notification of the response signal is provided. In the transmitting station, the response signal is acquired at timing of each of the code words and retransmitting control by HARQ is performed.

摘要翻译： 在重发时可以利用关于其他码字的信息，并且改善了使用多个码字的情况的传输特性。 在用于使用多个码字发送数据的无线电通信装置中，作为在从发送站（BS）向接收站（UE）发送数据之后发送站接收响应信号（Ack / Nack信号）所作的响应时间 ），对应于低阶码字的第二响应时间（RTT2）的周期比对应于高阶码字的第一响应时间（RTT1）的周期长。 在接收站中，使用重发数据中的至少一个解码低位码字的接收数据，并且根据每个的解码结果分别生成高阶码字的第一接收数据和响应信号 提供了代码字和响应信号的通知。 在发送站中，在每个码字的定时获取响应信号，并且通过HARQ进行重发控制。