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1. 再颁专利

USRE44200E1 Wireless communication system 有权
标题翻译：无线通信系统
公开(公告)号：USRE44200E1
公开(公告)日：2013-05-07
申请号：US13444664
申请日：2006-03-13
申请人： Tomohiro Imai , Ayako Horiuchi , Akihiko Nishio , Kenichi Kuri , Hiroaki Morino
发明人： Tomohiro Imai , Ayako Horiuchi , Akihiko Nishio , Kenichi Kuri , Hiroaki Morino
IPC分类号： H04B15/00 , H04B7/15
CPC分类号： H04B7/15557 , H04B7/2606 , H04L1/0003 , H04L1/0009 , H04L2001/0092
摘要： A wireless communication system enabling multihop communication while maintaining the system throughput and preventing degradation of the user throughput. In the system, a BS (base station) determines the relaying method (whether an RS performs reproduction relay or nonreproduction relay) of the RS (relaying station) and the MCS of multihop communication according to the reception quality (the line quality among an MS2, the RS, and the BS) of the pilot for nonreproduction relay, the reception quality (the line quality between the RS and the BS) of the pilot 2 for reproduction relay, and the line quality (the line quality between the MS2 and the RS) measured at the RS. The determination result is transmitted as relay information to the RS and to the MS2 (a mobile station (2)) through the RS. The MS2 encodes and modulates the uplink data with the MCS based on the relay information and transmits the data to the RS. The RS relays the uplink data while selecting nonreproduction relay or reproduction relay according to the relay information.
摘要翻译：一种能够实现多跳通信同时维持系统吞吐量并防止用户吞吐量恶化的无线通信系统。在该系统中，BS（基站）根据接收质量（MS2中的线路质量）确定RS（中继站）的RS中继方法（RS是否执行再生中继或不再生中继）用于非再生继电器的导频的RS，和BS），用于再现中继的导频2的接收质量（RS与BS之间的线路质量）和线路质量（MS2与 RS）。确定结果通过RS作为中继信息发送到RS和MS2（移动台（2））。 MS2通过基于中继信息的MCS对上行数据进行编码和调制，并将数据发送给RS。 RS根据中继信息选择非再生继电器或再生继电器时中继上行数据。

2. 发明授权

US08064503B2 Multicarrier communication apparatus and multicarrier communication method 有权
标题翻译：多载波通信装置和多载波通信方法
公开(公告)号：US08064503B2
公开(公告)日：2011-11-22
申请号：US11576039
申请日：2005-09-26
申请人： Yasuaki Yuda , Tomohiro Imai , Kenichi Miyoshi
发明人： Yasuaki Yuda , Tomohiro Imai , Kenichi Miyoshi
IPC分类号： H04B1/38 , H04W4/00
CPC分类号： H04L27/2626 , H04B7/0615 , H04L27/2647
摘要： A multicarrier communication apparatus and the like wherein the arithmetic amount required for calculating a reception weight by which a multicarrier signal is to be multiplied is suppressed, while the reception characteristic for the multicarrier signal is improved. In the apparatus, a subcarrier transmission weight generating part (513) generates a transmission weight of each subcarrier, based on channel information of each subcarrier received from a channel information generating part (511) and a reception weight of each subcarrier group received from a subcarrier group reception weight generating part (512). The subcarrier transmission weight generating part (513) inputs the generated transmission weights of the respective subcarriers to the corresponding ones of multipliers (522).
摘要翻译：在多载波信号的接收特性提高的情况下，抑制用于计算要乘以多载波信号的接收权重所需的算术量的多载波通信装置等。在该装置中，副载波发送权重生成部（513）根据从信道信息生成部（511）接收到的各子载波的信道信息和从子载波接收到的各子载波组的接收权重，生成各副载波的发送权重组接收权重生成部（512）。子载波传输权重产生部分（513）将生成的各个子载波的传输权重输入到相应的乘法器（522）。

3. 发明授权

US08050619B2 Radio communication apparatus and radio communication method 有权
标题翻译：无线电通信装置和无线电通信方法
公开(公告)号：US08050619B2
公开(公告)日：2011-11-01
申请号：US12282331
申请日：2007-03-29
申请人： Ayako Horiuchi , Kenichi Miyoshi , Tomohiro Imai , Hiroaki Morino
发明人： Ayako Horiuchi , Kenichi Miyoshi , Tomohiro Imai , Hiroaki Morino
IPC分类号： H04B3/36
CPC分类号： H04B7/022 , H04B7/026 , H04B7/15592 , H04L1/0643 , H04L1/1887 , H04L2001/0097
摘要： Provided is a mobile communication system capable of obtaining a diversity effect even when a signal received by a relay station has an error in a corporate relay to which time space encoding is applied. In this mobile communication system, when S1 has no error and S2 has an error, a relay station (1) does not perform relay transmission at time t (Null) and relay-transmits S1* to a base station at time t+T. That is, in this case, the relay station (1) relay-transmits at time t+T only S1 to be transmitted at time t when no error is contained in either S1 or S2. Moreover, when S1 has an error and S2 has no error, the relay station (1) relay-transmits S2 at time t and does not perform relay transmission at time t+T (Null). That is, in this case, the relay station (1) relay-transmits only S2 to be transmitted at time t+T at time t if no error is contained in either S1 or S2.
摘要翻译：提供了即使当中继站接收的信号在应用了时间空间编码的公司中继中具有错误时，也能够获得分集效应的移动通信系统。在该移动通信系统中，当S1没有错误且S2有错误时，中继站（1）在时刻t（Null）不执行中继传输，并且在时刻t + T向基站中继发送S1 *。也就是说，在这种情况下，中继站（1）在时刻t + T仅中继 - 在S1或S2中不包含错误的情况下，在时间t发送要发送的S1。此外，当S1发生错误且S2没有错误时，中继站（1）在时刻t中继发送S2，在时刻t + T（Null）不进行中继发送。也就是说，在这种情况下，如果在S1或S2中没有包含错误，则中继站（1）在时间t仅中继仅发送在时间t + T发送的S2。

4. 发明申请

US20100315962A1 BASE STATION DEVICE, TERMINAL DEVICE, AND CLOSED LOOP CONTROL METHOD 有权
标题翻译：基站设备，终端设备和闭环控制方法
公开(公告)号：US20100315962A1
公开(公告)日：2010-12-16
申请号：US12521514
申请日：2007-12-27
申请人： Tomohiro Imai , Shozo Okasaka , Katsuhiko Hiramatsu
发明人： Tomohiro Imai , Shozo Okasaka , Katsuhiko Hiramatsu
IPC分类号： H04J3/14 , H04J3/00
CPC分类号： H04L5/0053 , H04B7/2615 , H04L1/0015 , H04L1/0029 , H04L5/0051 , H04L25/023
摘要： Provided is a base station device capable of reducing a DL-CSI feedback amount in a TDD type radio communication system in which a DL bandwidth is different from a UL bandwidth. In this device, a demultiplexing unit (133) separates an UL pilot, a DL-CQI, and a DL-CSI fed back from a plurality of UEs as communication partners; a channel estimation unit (134) performs channel sounding by using a UL pilot from a UE in which a DL channel and a UL channel are allocated by overlapping a part of the bandwidth so as to obtain UL-CSI; a control DL-CSI acquisition unit (135) performs interpolation of DL-CSI by using the DL-CSI of some RB contained in the bandwidth where the DL channel and the UL channel fed back from the UE are not overlapped; and a DL close loop control unit (104) combines the estimated UL-CSI and the interpolated DL-CSI so as to use them as DL-CSI for controlling the DL close loop.
摘要翻译：提供一种能够减少DL带宽与UL带宽不同的TDD型无线通信系统中的DL-CSI反馈量的基站装置。在该设备中，解复用单元（133）将从多个UE反馈的UL导频，DL-CQI和DL-CSI分离为通信伙伴; 信道估计单元（134）通过使用来自通过重叠一部分带宽来分配DL信道和UL信道的UE的UL导频来执行信道探测，以获得UL-CSI; 控制DL-CSI获取单元（135）通过使用包含在从UE反馈的DL信道和UL信道不重叠的带宽中的一些RB的DL-CSI来执行DL-CSI的内插; 并且DL闭环控制单元（104）将估计的UL-CSI和内插的DL-CSI组合，以便将它们用作用于控制DL闭环的DL-CSI。

5. 发明申请

US20100222003A1 RADIO COMMUNICATION SYSTEM, RADIO BASE STATION DEVICE, AND TRANSMISSION CONTROL METHOD 有权
标题翻译：无线电通信系统，无线基站设备和传输控制方法
公开(公告)号：US20100222003A1
公开(公告)日：2010-09-02
申请号：US12678099
申请日：2008-09-25
申请人： Isamu Yoshii , Atsushi Sumasu , Tomohiro Imai , Naoya Yosoku , Hidenori Kayama
发明人： Isamu Yoshii , Atsushi Sumasu , Tomohiro Imai , Naoya Yosoku , Hidenori Kayama
IPC分类号： H04B15/00
CPC分类号： H04W72/082 , H04L5/0032 , H04W52/243 , H04W72/0413
摘要： It is possible to provide a transmission control method, a radio communication system, and a radio base station device which can reduce the time required until an inter-cell interference is reduced so as to improve the system throughput. A base station (200) includes: an FFT unit (210) which receives an interference report transmitted by using a common radio resource common to adjacent cells from a plurality of radio terminals (100) existing in different adjacent cells; and an adaptive FFR processing unit (230) which controls adaptive FFR processing in a downstream line of the local cell according to the reception interference report. Thus, by receiving an interference report directly from the radio terminals (100) existing in adjacent cells, it is possible to modify the transmission mode by considering the interference state in the adjacent cells. This eliminates the need of sending a report on a transmission mode modification which has been conventionally sent between adjacent base stations (200). This reduces the signaling required in the system, which improves the system throughput.
摘要翻译：可以提供一种传输控制方法，无线电通信系统和无线电基站装置，其可以减少小区间干扰减少所需的时间，从而提高系统吞吐量。基站（200）包括：FFT单元（210），其接收通过使用来自存在于不同相邻小区中的多个无线终端（100）的相邻小区共用的公共无线资源来发送的干扰报告; 以及根据接收干扰报告来控制本地小区的下游线路中的自适应FFR处理的自适应FFR处理单元（230）。因此，通过直接从相邻小区中存在的无线终端（100）接收干扰报告，可以通过考虑相邻小区中的干扰状态来修改发送模式。这消除了发送关于传统上在相邻基站（200）之间发送的传输模式修改的报告的需要。这减少了系统中所需的信令，这提高了系统吞吐量。

6. 发明申请

US20100135428A1 MULTIANTENNA RADIO TRANSMITTING APPARATUS AND MULTIANTENNA RADIO TRANSMITTING METHOD 审中-公开
标题翻译：多波束无线电发射装置和多波束无线电发射方法
公开(公告)号：US20100135428A1
公开(公告)日：2010-06-03
申请号：US12376532
申请日：2007-08-07
申请人： Yasuaki Yuda , Masayuki Hoshino , Tomohiro Imai
发明人： Yasuaki Yuda , Masayuki Hoshino , Tomohiro Imai
IPC分类号： H04L27/00
CPC分类号： H04B7/04 , H04B7/0452 , H04L1/0009 , H04L1/0025 , H04L1/0039 , H04L1/0072
摘要： There are disclosed a multiantenna radio transmitting apparatus and others wherein control information can be transmitted with enhanced reliability while overheads of transport signals being reduced. This apparatus uses a transmission antenna (Tx) (119) to SDM transmit transport data (1) (CW1) and also uses a transmission antenna (120) to SDM transmit transport data (2) (CW2). In this apparatus, when the transmission quality of the transmission antenna (Tx) (119) is better than that of the transmission antenna (Tx) (120), the control information (2) related to the transport data (2) (CW2) is transmitted in a space division multiplex mode via the transmission antenna (Tx) (119), while the control information (1) related to the transport data (1) (CW1) is transmitted in a diversity mode.
摘要翻译：公开了一种多天线无线发送装置等，其中控制信息可以以更高的可靠性传输，同时降低了传输信号的开销。该设备使用发送天线（Tx）（119）到SDM发送传输数据（1）（CW1），并且还使用发送天线（120）到SDM发送传输数据（2）（CW2）。在该装置中，当发送天线（Tx）（119）的发送质量好于发送天线（Tx）（120）的发送质量时，与传输数据（2）（CW2）相关的控制信息（2）通过发送天线（Tx）（119）以空分多路复用模式发送，而以分集模式发送与传输数据（1）（CW1）相关的控制信息（1）。

7. 发明申请

US20090291702A1 RADIO COMMUNICATION TERMINAL AND RADIO COMMUNICATION BASE STATION DEVICE 审中-公开
标题翻译：无线电通信终端和无线电通信基站装置
公开(公告)号：US20090291702A1
公开(公告)日：2009-11-26
申请号：US12293528
申请日：2007-03-23
申请人： Tomohiro Imai , Masayuki Hoshino , Yasuaki Yuda
发明人： Tomohiro Imai , Masayuki Hoshino , Yasuaki Yuda
IPC分类号： H04B17/00 , H04B7/00 , H04B1/04
CPC分类号： H04B7/0417 , H04B7/0452 , H04B7/0628 , H04B7/0632 , H04B7/0634 , H04B7/0643 , H04B7/0854 , H04L1/0003
摘要： Provided are a radio communication terminal and a radio communication base station device which are installed in a Multi-User MIMO system even if the ability to suppress interference is low. According to beam combination information fed back from NON-MIMO UE, and beam information and a CQI fed back from another MIMO UE, a scheduler section (102) allocates a space resource to the NON-MIMO UE and allocates the remaining resource to the another MIMO UE. According to the beam combination information, a beam weight generating section (104) generates weight. A transmission beam forming section (105) multiplies each stream outputted from modulation sections (103-1, 103-2) by the weight to form a transmission beam.
摘要翻译：提供即使抑制干扰的能力低的情况下也安装在多用户MIMO系统中的无线通信终端和无线通信基站装置。根据从NON-MIMO UE反馈的波束组合信息，以及波束信息和从另一个MIMO UE反馈的CQI，调度器部分（102）向NON-MIMO UE分配空间资源，并将剩余资源分配给另一个 MIMO UE。根据光束组合信息，光束重量产生部分（104）产生重量。发送波束形成部（105）将从调制部（103-1,103-2）输出的各流乘以权重，形成发送波束。

8. 发明申请

US20090238290A1 TRANSMITTING DEVICE, RECEIVING DEVICE, TRANSMITTING METHOD, RECEIVING METHOD AND WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：发送装置，接收装置，发送方法，接收方法和无线通信系统
公开(公告)号：US20090238290A1
公开(公告)日：2009-09-24
申请号：US12091092
申请日：2006-10-27
申请人： Tomohiro Imai , Masayuki Hoshino , Yasuaki Yuda , Ryohei Kimura , Yuichi Kobayakawa
发明人： Tomohiro Imai , Masayuki Hoshino , Yasuaki Yuda , Ryohei Kimura , Yuichi Kobayakawa
IPC分类号： H04L27/28
CPC分类号： H04B7/0613 , H04B7/0684 , H04L1/0026 , H04L1/0041 , H04L1/06 , H04L5/0023 , H04L5/0051 , H04L25/0204 , H04L25/0226 , H04L27/2613 , H04W24/00 , H04W48/08 , H04W72/04
摘要： Provided is a transmitting device which improves a data rate while maintaining channel estimation accuracy, or improves channel estimation accuracy while maintaining a data rate, in a MIMO-OFDM system. In the transmitting device, a transmitting antenna information adding section (104) adds transmitting antenna information to a pilot signal by performing different phase rotation to the separate pilot signal by transmitting antenna by having a common pilot signal as a reference phase. A pilot arranging section (107) is previously provided with, as a conversion table, a corresponding relationship between combination information of the transmitting antenna and a subcarrier to be used for transmission of the pilot signal and control information. The pilot arranging section (107) allocates the pilot signal outputted from the transmitting antenna information adding section (104) to the subcarrier to have the combination information in accordance with the control information.
摘要翻译：提供了一种发送装置，其在维持信道估计精度的同时提高数据速率，或者在MIMO-OFDM系统中保持数据速率的同时提高信道估计精度。在发送装置中，发送天线信息添加部（104）通过以公共导频信号作为参考相位，通过发送天线对分离导频信号进行不同相位旋转，将发送天线信息添加到导频信号。导频安排部分（107）预先具有作为转换表的发送天线的组合信息和要用于发送导频信号的子载波和控制信息之间的对应关系。导频安排部分（107）将从发射天线信息添加部分（104）输出的导频信号分配给子载波，以根据控制信息具有组合信息。

9. 发明申请

US20090227201A1 WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：无线通信系统
公开(公告)号：US20090227201A1
公开(公告)日：2009-09-10
申请号：US11908486
申请日：2006-03-13
申请人： Tomohiro Imai , Ayako Horiuchi , Akihiko Nishio , Kenichi Kuri , Hiroaki Morino
发明人： Tomohiro Imai , Ayako Horiuchi , Akihiko Nishio , Kenichi Kuri , Hiroaki Morino
IPC分类号： H04B7/14
CPC分类号： H04B7/15557 , H04B7/2606 , H04L1/0003 , H04L1/0009 , H04L2001/0092
摘要： A wireless communication system enabling multihop communication while maintaining the system throughput and preventing degradation of the user throughput. In the system, a BS (base station) determines the relaying method (whether an RS performs reproduction relay or nonreproduction relay) of the RS (relaying station) and the MCS of multihop communication according to the reception quality (the line quality among an MS2, the RS, and the BS) of the pilot for nonreproduction relay, the reception quality (the line quality between the RS and the BS) of the pilot 2 for reproduction relay, and the line quality (the line quality between the MS2 and the RS) measured at the RS. The determination result is transmitted as relay information to the RS and to the MS2 (a mobile station (2)) through the RS. The MS2 encodes and modulates the uplink data with the MCS based on the relay information and transmits the data to the RS. The RS relays the uplink data while selecting nonreproduction relay or reproduction relay according to the relay information.
摘要翻译：一种能够实现多跳通信同时维持系统吞吐量并防止用户吞吐量恶化的无线通信系统。在该系统中，BS（基站）根据接收质量（MS2中的线路质量）确定RS（中继站）的RS中继方法（RS是否执行再生中继或非再生中继）用于非再生继电器的导频的RS，和BS），用于再现中继的导频2的接收质量（RS与BS之间的线路质量）和线路质量（MS2与 RS）。确定结果通过RS作为中继信息发送到RS和MS2（移动台（2））。 MS2通过基于中继信息的MCS对上行数据进行编码和调制，并将数据发送给RS。 RS根据中继信息选择非再生继电器或再生继电器时中继上行数据。

10. 发明申请

US20090034637A1 TRANSMITTING APPARATUS, RECEIVING APPARATUS, AND LINK ADAPTATION METHOD 有权
标题翻译：发送装置，接收装置和链路适配方法
公开(公告)号：US20090034637A1
公开(公告)日：2009-02-05
申请号：US11912630
申请日：2006-04-24
申请人： Masayuki Hoshino , Ryohei Kimura , Yasuaki Yuda , Tomohiro Imai , Kenichi Miyoshi , Akihiko Nishio
发明人： Masayuki Hoshino , Ryohei Kimura , Yasuaki Yuda , Tomohiro Imai , Kenichi Miyoshi , Akihiko Nishio
IPC分类号： H04L27/28 , H04J99/00
CPC分类号： H04B7/0669 , H04B7/0417 , H04B7/063 , H04B7/0632 , H04B7/0673 , H04B17/24 , H04L1/0003 , H04L1/0009 , H04L1/004 , H04L1/1867 , H04W52/267
摘要： A link adaptation method and others wherein feedback information amount can be reduced. According to this method, a receiving apparatus (100) calculates, based on a channel matrix, a capacity (C) and a stream ratio (r) that is a ratio of the reception qualities of streams, and then transmits, as feedback information, the calculated capacity (C) and stream ratio (r) to a transmitting apparatus. In the transmitting apparatus (200), the number of transmittable streams, the modulation scheme and the fed-back capacity (C) are used to calculate the encoding ratio (R) and sequence length (S) of spatial multiplexed symbols. Then, the modulation scheme (M1-Mn) of each stream is decided based on the fed-back stream ratio (r) and the sequence length (S) of spatial multiplexed symbols.
摘要翻译：链路适配方法等可以减少反馈信息量。根据该方法，接收装置（100）基于信道矩阵计算作为流的接收质量的比率的容量（C）和流比（r），然后作为反馈信息，计算的容量（C）和流量比（r）。在发送装置（200）中，使用可发送流的数量，调制方式和反馈容量（C）来计算空间复用符号的编码率（R）和序列长度（S）。然后，基于反馈流比（r）和空间复用符号的序列长度（S）来决定各流的调制方式（M1-Mn）。

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