公开(公告)号：US06510189B1

公开(公告)日：2003-01-21

申请号：US09284243

申请日：1999-04-14

申请人： Katsuhiko Hiramatsu ,  Atsushi Matsumoto ,  Hideyuki Takahashi ,  Kenichi Miyoshi

发明人： Katsuhiko Hiramatsu ,  Atsushi Matsumoto ,  Hideyuki Takahashi ,  Kenichi Miyoshi

IPC分类号： H04B110

CPC分类号： H04W36/06 ,  H04W16/14 ,  H04W24/00

摘要： The reception electric field strength of a desired wave is detected by desired wave reception electric field strength detecting means 102, the reception electric field strength of an interference wave is detected by interference wave reception electric field strength detecting means 103, and they are compared with each by comparing means 104 so as to calculate a D/U ratio. Also, an FER is detected by frame error rate detecting means 106. Future D/U ratio and FER are predicted from both histories and the switching of a communication channel is performed, whereby a reception state is detected without interrupting communications, and a communication quality is improved.

摘要翻译： 期望波的接收电场强度由期望的波接收电场强度检测装置102检测，干扰波接收电场强度检测装置103检测干扰波的接收电场强度，并将它们与每个 通过比较装置104以便计算D / U比。 此外，由帧错误率检测装置106检测到FER。从两个历史预测未来D / U比和FER，并且执行通信信道的切换，从而在不中断通信的情况下检测接收状态，并且通信质量 改进了

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：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：US07761113B2

公开(公告)日：2010-07-20

申请号：US12132992

申请日：2008-06-04

申请人： Kenichi Miyoshi ,  Takahisa Aoyama ,  Toyoki Ue ,  Osamu Kato ,  Katsuhiko Hiramatsu ,  Atsushi Sumasu

发明人： Kenichi Miyoshi ,  Takahisa Aoyama ,  Toyoki Ue ,  Osamu Kato ,  Katsuhiko Hiramatsu ,  Atsushi Sumasu

IPC分类号： H04B7/00

CPC分类号： H04W52/265 ,  H04W52/24 ,  H04W52/241 ,  H04W52/246 ,  H04W52/262 ,  H04W52/267 ,  H04W52/367

摘要： An allocation section 101 in a base station apparatus of the present invention sets the transmission rate of a transmit signal for a communication terminal apparatus based on a DRC signal transmitted from that communication terminal apparatus. A power margin information detector 117 detects power margin information from a demodulated signal generated by a demodulator 115, and, using that power margin information, a power setting section 118 makes a setting so as to give the minimum transmission power value at which received signal characteristics in each communication terminal apparatus meet the desired quality. Using the set transmission power value, the base station apparatus transmits a transmit signal of the set transmission rate to a communication terminal apparatus. By this means it is possible to suppress interference to a communication terminal apparatus that performs adaptive modulation communication with another base station apparatus and a communication terminal apparatus that performs adaptive modulation communication with the local base station apparatus at the same time.

摘要翻译： 本发明的基站装置中的分配部101基于从该通信终端装置发送的DRC信号来设定通信终端装置的发送信号的发送速度。 功率余量信息检测器117从解调器115产生的解调信号中检测功率余量信息，并且使用该功率余量信息，功率设定部118进行设定，以便给出接收信号特性 在每个通信终端设备中满足期望的质量。 使用设定的发送功率值，基站装置向通信终端装置发送所设定的发送速率的发送信号。 通过这种方式，可以抑制对与本地基站装置同时执行自适应调制通信的另一基站装置和通信终端装置进行自适应调制通信的通信终端装置的干扰。

公开(公告)号：US20090239484A1

公开(公告)日：2009-09-24

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： H04B1/02 ,  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分。 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：US20090185634A1

公开(公告)日：2009-07-23

申请号：US12280677

申请日：2007-02-28

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

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

IPC分类号： H04B7/02 ,  H04L27/06

CPC分类号： H04B7/0626 ,  H04B7/0417 ,  H04B7/0434 ,  H04B7/063 ,  H04B7/0689

摘要： 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.

摘要翻译： 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链路线路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：US07460880B2

公开(公告)日：2008-12-02

申请号：US11341430

申请日：2006-01-30

申请人： Kenichi Miyoshi ,  Takahisa Aoyama ,  Toyoki Ue ,  Osamu Kato ,  Katsuhiko Hiramatsu ,  Atsushi Sumasu

发明人： Kenichi Miyoshi ,  Takahisa Aoyama ,  Toyoki Ue ,  Osamu Kato ,  Katsuhiko Hiramatsu ,  Atsushi Sumasu

IPC分类号： H04B7/00

CPC分类号： H04W52/265 ,  H04W52/24 ,  H04W52/241 ,  H04W52/246 ,  H04W52/262 ,  H04W52/267 ,  H04W52/367

摘要： An allocation section 101 in a base station apparatus of the present invention sets the transmission rate of a transmit signal for a communication terminal apparatus based on a DRC signal transmitted from that communication terminal apparatus. A power margin information detector 117 detects power margin information from a demodulated signal generated by a demodulator 115, and, using that power margin information, a power setting section 118 makes a setting so as to give the minimum transmission power value at which received signal characteristics in each communication terminal apparatus meet the desired quality. Using the set transmission power value, the base station apparatus transmits a transmit signal of the set transmission rate to a communication terminal apparatus. By this means it is possible to suppress interference to a communication terminal apparatus that performs adaptive modulation communication with another base station apparatus and a communication terminal apparatus that performs adaptive modulation communication with the local base station apparatus at the same time.

摘要翻译： 本发明的基站装置中的分配部101基于从该通信终端装置发送的DRC信号来设定通信终端装置的发送信号的发送速度。 功率余量信息检测器117从解调器115产生的解调信号中检测功率余量信息，并且使用该功率余量信息，功率设定部118进行设定，以便给出接收信号特性 在每个通信终端设备中满足期望的质量。 使用设定的发送功率值，基站装置向通信终端装置发送所设定的发送速率的发送信号。 通过这种方式，可以抑制对与本地基站装置同时执行自适应调制通信的另一基站装置和通信终端装置进行自适应调制通信的通信终端装置的干扰。

公开(公告)号：US06463261B1

公开(公告)日：2002-10-08

申请号：US09319940

申请日：1999-07-30

申请人： Katsuhiko Hiramatsu ,  Kenichi Miyoshi

发明人： Katsuhiko Hiramatsu ,  Kenichi Miyoshi

IPC分类号： H04B1500

CPC分类号： H04W56/001 ,  H04B7/2681 ,  H04W56/003 ,  H04W92/10

摘要： The radio communication apparatus of the present invention changes the transmission timing of a mobile station of the self station with respect to the transmission timing of a mobile station of a peripheral transmission station. This makes it possible to extract a received signal from the self station even if the mobile station of the self station and the mobile station of the peripheral transmission station use identical unique words.

摘要翻译： 本发明的无线通信装置相对于外围发送站的移动台的发送定时改变自身站的移动台的发送定时。 这使得即使本台的移动台和外围发送站的移动台使用相同的唯一字，也可以从本台提取接收的信号。

公开(公告)号：US08743769B2

公开(公告)日：2014-06-03

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： H04B7/14

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：US08265551B2

公开(公告)日：2012-09-11

申请号：US12669148

申请日：2008-07-18

申请人： Yoshiko Saito ,  Takashi Aramaki ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Hidetoshi Suzuki ,  Jun Hirano

发明人： Yoshiko Saito ,  Takashi Aramaki ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Hidetoshi Suzuki ,  Jun Hirano

IPC分类号： H04Q7/20

CPC分类号： H04W16/26 ,  H04B7/15507 ,  H04W16/24 ,  H04W48/08 ,  H04W84/047

摘要： Provided is a mobile communication system which includes a plurality of RAT (Radio Access Technology) and can eliminate the need of a control channel for reporting RAT information so as to prevent congestion or shortage of the control channel capacity. In the mobile communication system, an LTE relay station (30) has a cover area (31) identical to a cover area (21) owned by a WLAN host station (20) and relays/transmits the signal received from an LTE base station (10) to a mobile station (40) in the cover area (31). The LTE relay station (30) adds to the signal received from the LTE base station (10), one of the offsets: a frequency offset, a time offset, and a power offset as information indicating that the mobile station (40) which receives a relay signal from the local station is located in the cover area (21) of WLAN and transmits the signal after offset addition to the mobile station (40) located in the cover area (31) (i.e., the cover area (21)).

摘要翻译： 提供了包括多个RAT（无线电接入技术）的移动通信系统，并且可以消除用于报告RAT信息的控制信道的需要，以防止控制信道容量的拥塞或不足。 在移动通信系统中，LTE中继站（30）具有与WLAN主站（20）拥有的覆盖区域（21）相同的覆盖区域（31），并且中继/发送从LTE基站接收的信号 10）到覆盖区域（31）中的移动站（40）。 LTE中继站（30）将从LTE基站（10）接收到的信号中的一个相加，作为指示接收到的移动站（40）的信息的偏移中的一个：频率偏移，时间偏移和功率偏移 来自本地站的中继信号位于WLAN的覆盖区域（21）中，并且将偏移相加后的信号发送到位于覆盖区域（31）（即，覆盖区域（21））中的移动站（40） 。