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公开(公告)号：US07843887B2
公开(公告)日：2010-11-30
申请号：US11718371
申请日：2005-11-01
CPC分类号： H04W72/02 , H04L25/0206 , H04L25/0248 , H04W36/28 , H04W72/085
摘要： It is possible to surely improve the throughput in a handover area in the MIMO communication and increase the cell coverage. Channel estimation units (104-1, 104-2) perform a channel estimation by using a common pilot signal transmitted from each base station device and acquire a channel matrix for each cell. Singular value decomposition processing units (105-1, 105-2) perform singular value decomposition processing by using a channel matrix corresponding to each cell. Channel capacity calculation units (106-1, 106-2) compare a singular value for each path to a threshold value and calculate the number of singular values above a predetermined threshold value as the channel capacity. A cell selection unit (107) compares the channel capacity sizes and selects a base station device corresponding to a greater channel capacity.
摘要翻译： 可以确保提高MIMO通信中的切换区域的吞吐量并增加小区覆盖。 信道估计单元（104-1,104-2）通过使用从每个基站装置发送的公共导频信号进行信道估计，并获取每个小区的信道矩阵。 奇异值分解处理单元（105-1,105-2）通过使用与每个单元相对应的信道矩阵来执行奇异值分解处理。 信道容量计算单元（106-1,106-2）将每个路径的奇异值与阈值进行比较，并计算高于预定阈值的奇异值的数量作为信道容量。 小区选择单元（107）比较信道容量大小，并选择对应于较大信道容量的基站设备。
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公开(公告)号：US20080008130A1
公开(公告)日：2008-01-10
申请号：US11718371
申请日：2005-11-01
IPC分类号： H04Q7/00
CPC分类号： H04W72/02 , H04L25/0206 , H04L25/0248 , H04W36/28 , H04W72/085
摘要： It is possible to surely improve the throughput in a handover area in the MIMO communication and increase the cell coverage. Channel estimation units (104-1, 104-2) perform a channel estimation by using a common pilot signal transmitted from each base station device and acquire a channel matrix for each cell. Singular value decomposition processing units (105-1, 105-2) perform singular value decomposition processing by using a channel matrix corresponding to each cell. Channel capacity calculation units (106-1, 106-2) compare a singular value for each path to a threshold value and calculate the number of singular values above a predetermined threshold value as the channel capacity. A cell selection unit (107) compares the channel capacity sizes and selects a base station device corresponding to a greater channel capacity.
摘要翻译： 可以确保提高MIMO通信中的切换区域的吞吐量并增加小区覆盖。 信道估计单元（104-1,104-2）通过使用从每个基站设备发送的公共导频信号来执行信道估计，并获取每个小区的信道矩阵。 奇异值分解处理单元（105-1,105-2）通过使用与每个单元相对应的信道矩阵来执行奇异值分解处理。 信道容量计算单元（106-1,106-2）将每个路径的奇异值与阈值进行比较，并计算高于预定阈值的奇异值的数量作为信道容量。 小区选择单元（107）比较信道容量大小，并选择对应于较大信道容量的基站设备。
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3.发明申请WIRELESS COMMUNICATION APPARATUS, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD 审中-公开无线通信设备，无线通信系统和无线通信方法公开(公告)号：US20100211844A1
公开(公告)日：2010-08-19
申请号：US12679726
申请日：2008-09-24
CPC分类号： H04L1/06 , H04L1/0025 , H04L1/1671 , H04L1/1893
摘要： Lowering of the frequency use efficiency and throughput is prevented while the blanking advantage is provided at the retransmission time in MCW using a plurality of streams per codeword. In a wireless communication apparatus for using a plurality of streams per codeword and performing data transmission according to a plurality of codewords, when two codewords are transmitted using four streams, for example, from a base station 101 to a user terminal 102, if retransmission occurs in the codeword, the codewords and the streams are arranged so as to decrease the number of streams with the number of codewords intact so that retransmission codeword is transmitted in two streams and new codeword is transmitted in one stream.
摘要翻译： 防止频率使用效率和吞吐量的降低，而在MCW中的重传时间使用每个码字的多个流提供消隐优势。 在每个码字使用多个流并根据多个码字执行数据传输的无线通信装置中，当使用四个流（例如从基站101到用户终端102）发送两个码字时，如果重发发生 在码字中，码字和流被布置为减少码字数量不变的流的数量，使得在两个流中发送重发码字，并且在一个流中传输新的码字。
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公开(公告)号：US08542770B2
公开(公告)日：2013-09-24
申请号：US12673560
申请日：2008-08-15
IPC分类号： H04L27/00
CPC分类号： H04L5/0048 , H04B7/0413 , H04B7/0417 , H04B7/0682 , H04L5/0023 , H04L25/0226 , H04L25/0228 , H04L27/2613 , H04L27/2626 , H04W74/002 , H04W88/02 , H04W88/08
摘要： Provided is a radio communication device which can separate propagation paths of antenna ports and improve a channel estimation accuracy even when using virtual antennas. The device includes: a mapping unit (103) which maps a data signal after modulation to a virtual antenna (0) and a virtual antenna (1); a phase inversion unit (104) which inverts the phase of S0 transmitted from an antenna port (2) in synchronization with a phase inversion unit (105) between the odd-number slot and the even-number slot; the phase inversion unit (105) which inverts the phase of R0 transmitted from the antenna port (2); a phase inversion unit (113) which inverts the phase of S1 transmitted from an antenna port (3) in synchronization with a phase inversion unit (114); and the phase inversion unit (114) which inverts the phase of R1 transmitted from an antenna port (3).
摘要翻译： 提供了即使在使用虚拟天线时也能够分离天线端口的传播路径并提高信道估计精度的无线通信装置。 该装置包括：将调制后的数据信号映射到虚拟天线（0）和虚拟天线（1）的映射单元（103）; 相位反转单元，其与奇数槽和偶数槽之间的相位反转单元同步地反转从天线端口（2）发送的S0的相位; 相位反转单元（105），其使从天线端口（2）发送的R0的相位反转; 相位反转部（113），其与相位反转部（114）同步地使从天线端口（3）发送的S1的相位反相; 以及反转从天线端口（3）发送的R1的相位的相位反转单元（114）。
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公开(公告)号：US20110216845A1
公开(公告)日：2011-09-08
申请号：US12673560
申请日：2008-08-15
IPC分类号： H04B7/02
CPC分类号： H04L5/0048 , H04B7/0413 , H04B7/0417 , H04B7/0682 , H04L5/0023 , H04L25/0226 , H04L25/0228 , H04L27/2613 , H04L27/2626 , H04W74/002 , H04W88/02 , H04W88/08
摘要： Provided is a radio communication device which can separate propagation paths of antenna ports and improve a channel estimation accuracy even when using virtual antennas. The device includes: a mapping unit (103) which maps a data signal after modulation to a virtual antenna (0) and a virtual antenna (1); a phase inversion unit (104) which inverts the phase of S0 transmitted from an antenna port (2) in synchronization with a phase inversion unit (105) between the odd-number slot and the even-number slot; the phase inversion unit (105) which inverts the phase of R0 transmitted from the antenna port (2); a phase inversion unit (113) which inverts the phase of S1 transmitted from an antenna port (3) in synchronization with a phase inversion unit (114); and the phase inversion unit (114) which inverts the phase of R1 transmitted from an antenna port (3).
摘要翻译： 提供了即使在使用虚拟天线时也能够分离天线端口的传播路径并提高信道估计精度的无线通信装置。 该装置包括：将调制后的数据信号映射到虚拟天线（0）和虚拟天线（1）的映射单元（103）; 相位反转单元，其与奇数槽和偶数槽之间的相位反转单元同步地反转从天线端口（2）发送的S0的相位; 相位反转单元（105），其使从天线端口（2）发送的R0的相位反转; 相位反转部（113），其与相位反转部（114）同步地使从天线端口（3）发送的S1的相位反相; 以及反转从天线端口（3）发送的R1的相位的相位反转单元（114）。
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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。
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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。
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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。
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9.发明申请RADIO BASE STATION DEVICE, RADIO TERMINAL DEVICE, AND RADIO COMMUNICATION SYSTEM 有权无线电台站设备，无线电终端设备和无线电通信系统公开(公告)号：US20100041413A1
公开(公告)日：2010-02-18
申请号：US12521292
申请日：2007-12-25
申请人： Atsushi Sumasu , Shutai Okamura , Katsuhiko Hiramatsu , Masayuki Orihashi , Ayako Horiuchi , Daichi Imamura , Yoshihiko Ogawa
发明人： Atsushi Sumasu , Shutai Okamura , Katsuhiko Hiramatsu , Masayuki Orihashi , Ayako Horiuchi , Daichi Imamura , Yoshihiko Ogawa
CPC分类号： H04W52/367 , H04L1/0026 , H04L1/1893 , H04L5/0048 , H04L5/006 , H04L5/143 , H04W52/0229 , Y02D70/1262 , Y02D70/164
摘要： It is possible to provide a radio communication system, a radio base station device, and a radio terminal device capable of reducing the power consumption in a radio terminal device without thinning pilot signals used for measuring upstream line quality. In the radio base station device (100) used in a radio communication system using different frequency bands for the upstream line and the downstream line, an upstream line pilot generation unit (115) forms a CQI measuring pilot signal and an upstream line RF unit (105) transmits the communication quality measuring pilot signal by using the upstream line use frequency band in the upstream line pilot transmission section. Thus, the upstream communication quality measuring pilot signal used by the radio base station device (100) to measure the line quality is transmitted by using the upstream line frequency band and accordingly, it is possible to reduce the power consumption in the radio terminal device.
摘要翻译： 可以提供一种能够减少无线终端装置的功耗而不减薄用于测量上游线路质量的导频信号的无线电通信系统，无线电基站装置和无线电终端装置。 在上行线路和下游线路使用了不同频带的无线通信系统中使用的无线基站装置（100）中，上游线路导频生成部（115）形成CQI测定导频信号和上行线路RF单元 105）通过使用上游线路导频发送部中的上游线路使用频带来发送通信质量测量导频信号。 因此，通过使用上游线路频带来发送无线基站装置（100）使用的测量线路质量的上行通信质量测量导频信号，因此能够降低无线终端装置的功耗。
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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。
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