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1. 发明申请

US20080198835A1 Wireless Transmission System And Wireless Transmission Method And Wireless Station For Use Therein 有权
标题翻译：无线传输系统及其无线传输方式及无线站
公开(公告)号：US20080198835A1
公开(公告)日：2008-08-21
申请号：US10569730
申请日：2005-09-16
申请人： Kenji Miyanaga , Hideki Nakahara , Hidetoshi Yamasaki , Hitoshi Takai
发明人： Kenji Miyanaga , Hideki Nakahara , Hidetoshi Yamasaki , Hitoshi Takai
IPC分类号： H04J3/06
CPC分类号： H04L1/1887 , H04B7/022 , H04B7/026 , H04B7/0676 , H04B7/155 , H04L2001/0093 , H04W56/00 , H04W84/042 , H04W84/047
摘要： The present invention provides a wireless station capable of increasing the probability that a path diversity effect can be obtained in a case where a plurality of wireless stations transmit packets using a modulation/demodulation scheme with an anti-multipath property. A delay amount determining section (48) randomly selects a delay amount from among a plurality of candidate values. A transmission timing control section (47) determines a transmission start timing, at which to start the packet transmission, to be a timing obtained by delaying a reference timing by the delay amount selected by the delay amount determining section. At the transmission start timing, a modulation section (49) transmits the packet via an RF section (42) and an antenna (41). The difference between the candidate values is greater than or equal to a predetermined delay resolution, and the difference between a maximum candidate value and a minimum candidate value is less than or equal to a predetermined maximum delay.
摘要翻译：本发明提供一种能够增加在多个无线站使用具有抗多径性质的调制解调方案来发送分组的情况下能够获得路径分集效果的概率的无线站。延迟量确定部分（48）从多个候选值中随机选择延迟量。发送定时控制部分47确定开始分组发送的发送开始定时是通过将参考定时延迟由延迟量确定部选择的延迟量而获得的定时。在发送开始定时，调制部（49）经由RF部（42）和天线（41）发送分组。候选值之间的差大于或等于预定延迟分辨率，并且最大候选值与最小候选值之间的差小于或等于预定最大延迟。

2. 发明授权

US09467211B2 Induced incoherency for joint transmission 有权
标题翻译：诱导联合传播的不一致性
公开(公告)号：US09467211B2
公开(公告)日：2016-10-11
申请号：US13577467
申请日：2012-06-15
申请人： David Hammarwall , Svante Bergman
发明人： David Hammarwall , Svante Bergman
IPC分类号： H04B7/02 , H04L5/00 , H04J11/00 , H04J13/00 , H04W72/12 , H04B7/06
CPC分类号： H04B7/024 , H04B7/063 , H04B7/0639 , H04B7/0676 , H04B7/0682 , H04J11/0053 , H04J13/004 , H04L5/0016 , H04L5/0035
摘要： Frequency-selective phase shifts are applied to signals transmitted from multiple transmission points involved in a coordinated (joint) transmission to a given UE. An eNodeB or other network node controlling the joint transmission artificially induces frequency selectivity between signals received by the UE in joint transmission from different transmission points, so as to ensure an even balance between constructive and destructive combination over frequency. By applying frequency-selective phase shifts (e.g., pseudo-random phase shifts) to the different transmission points that perform joint transmission, the signals from the different transmission points are forced to combine at the UE in a non-coherent manner. As a result, uncertainty in how the signals combine is drastically reduced, since it can be expected that the signals will always combine incoherently. The reduced uncertainty translates to reduced back-off offset in the link adaptation, and thus in an increased throughput.
摘要翻译：频率选择性相移被应用于从涉及协调（联合）传输到给定UE的多个传输点发送的信号。控制联合传输的eNodeB或其他网络节点在不同传输点的联合传输中人为地诱导由UE接收的信号之间的频率选择性，以便确保在频率上的建设性和破坏性组合之间的均衡。通过对执行联合传输的不同传输点应用频率选择性相移（例如，伪随机相移），来自不同传输点的信号被强制以不相干的方式在UE处组合。结果，信号组合的不确定性大大降低，因为可以预期信号将总是不连贯地组合。减少的不确定性转化为链路适配中的减小偏移，并且因此增加的吞吐量。

3. 发明申请

US20120218945A1 Method and Arrangement for Random Access Diversity 审中-公开
标题翻译：随机访问多样性的方法和布置
公开(公告)号：US20120218945A1
公开(公告)日：2012-08-30
申请号：US13505178
申请日：2009-11-25
申请人： Ali Behravan , Robert Baldemair
发明人： Ali Behravan , Robert Baldemair
IPC分类号： H04W74/08
CPC分类号： H04W74/0833 , H04B7/022 , H04B7/0613 , H04B7/0671 , H04B7/0676
摘要： Methods and arrangements for enablement of transmission of a network node assisted random access request using transmit diversity. The methods and arrangements relate to providing information related to a non-transparent diversity scheme to a mobile terminal, which diversity scheme then is used by the mobile terminal when transmitting a network node assisted random access request.
摘要翻译：使用发射分集实现网络节点辅助随机接入请求传输的方法和装置。所述方法和装置涉及向移动终端提供与不透明分集方案有关的信息，然后在发送网络节点辅助随机接入请求时移动终端使用该分集方案。

4. 发明授权

US10079633B2 Time-based and frequency-based radio beamforming waveform transmission 有权
公开(公告)号：US10079633B2
公开(公告)日：2018-09-18
申请号：US14868509
申请日：2015-09-29
申请人： The United States of America, as represented by the Secretary of the Army
发明人： Ryan Elwell , Mark Govoni
IPC分类号： H04B7/06 , H04B7/08
CPC分类号： H04B7/0671 , H04B7/0617 , H04B7/0676 , H04B7/068 , H04B7/08
摘要： Various embodiments are described that relate to radio beamforming waveform transmission. Transmission can occur, for example, in three manners. The first manner is time-based where waveform transmission is staggered at the same frequency. The second manner is frequency-based where different frequencies are used at one time. This third manner is a combination of time and frequency such that simultaneous transmission occurs, but at different times different frequencies are used.

5. 发明申请

US20080175221A1 Wireless Transmission System and Wireless Transmission Method and Wireless Station and Transmitting Station for Use Therein 有权
标题翻译：无线传输系统和无线传输方法及其使用的无线站和传输站
公开(公告)号：US20080175221A1
公开(公告)日：2008-07-24
申请号：US10569491
申请日：2005-09-16
申请人： Hideki Nakahara , Hitoshi Takai , Hidetoshi Yamasaki , Kenji Miyanaga , Koichiro Tanaka
发明人： Hideki Nakahara , Hitoshi Takai , Hidetoshi Yamasaki , Kenji Miyanaga , Koichiro Tanaka
IPC分类号： H04J3/06
CPC分类号： H04L1/1887 , H04B7/022 , H04B7/0667 , H04B7/0676 , H04B7/15592 , H04W84/042 , H04W84/047
摘要： The present invention provides a wireless transmission system in which it is possible to exert a maximum path diversity effect even if the maximum number of effective branches is limited to a small number. A transmission timing control section (23) determines a transmission start timing to be a timing obtained by delaying a reference timing by a predetermined delay amount. A modulation section (21) modulates a signal by a modulation scheme such that an anti-multipath property is exerted when the signal is demodulated on a receiver side, and transmits the modulated signal at the transmission start timing. In a receiving station (12), a demodulation section (33) demodulates the receive signal to obtain receive data. The predetermined delay amount is such that signals are received at the receiving station (12) at a plurality of signal-receiving timings, and the number of signal-receiving timings is less than or equal to a predetermined maximum number of effective branches, a difference between the signal-receiving timings is greater than or equal to a predetermined delay resolution and is less than or equal to a predetermined maximum delay.
摘要翻译：本发明提供一种无线传输系统，其中即使最大数量的有效分支被限制为少数，也可以施加最大路径分集效应。发送定时控制部（23）将发送开始定时确定为通过将基准定时延迟预定延迟量而获得的定时。调制部（21）通过调制方式对信号进行调制，使得当在接收机侧解调信号时施加抗多径特性，并在发送开始定时发送调制信号。在接收站（12）中，解调部（33）对接收信号进行解调，得到接收数据。预定延迟量使得在接收站（12）处以多个信号接收定时接收信号，并且信号接收定时的数量小于或等于预定的最大有效分支数，差在信号接收定时之间大于或等于预定的延迟分辨率并且小于或等于预定的最大延迟。

6. 发明申请

US20130242769A1 Induced Incoherency for Joint Transmission 有权
标题翻译：联合传动引起的不连续性
公开(公告)号：US20130242769A1
公开(公告)日：2013-09-19
申请号：US13577467
申请日：2012-06-15
申请人： David Hammarwall , Svante Bergman
发明人： David Hammarwall , Svante Bergman
IPC分类号： H04W24/10
CPC分类号： H04B7/024 , H04B7/063 , H04B7/0639 , H04B7/0676 , H04B7/0682 , H04J11/0053 , H04J13/004 , H04L5/0016 , H04L5/0035
摘要： Frequency-selective phase shifts are applied to signals transmitted from multiple transmission points involved in a coordinated (joint) transmission to a given UE. An eNodeB or other network node controlling the joint transmission artificially induces frequency selectivity between signals received by the UE in joint transmission from different transmission points, so as to ensure an even balance between constructive and destructive combination over frequency. By applying frequency-selective phase shifts (e.g., pseudo-random phase shifts) to the different transmission points that perform joint transmission, the signals from the different transmission points are forced to combine at the UE in a non-coherent manner. As a result, uncertainty in how the signals combine is drastically reduced, since it can be expected that the signals will always combine incoherently. The reduced uncertainty translates to reduced back-off offset in the link adaptation, and thus in an increased throughput.
摘要翻译：频率选择性相移被应用于从涉及协调（联合）传输到给定UE的多个传输点发送的信号。控制联合传输的eNodeB或其他网络节点在不同传输点的联合传输中人为地诱导由UE接收的信号之间的频率选择性，以便确保在频率上的建设性和破坏性组合之间的均衡。通过对执行联合传输的不同传输点应用频率选择性相移（例如，伪随机相移），来自不同传输点的信号被强制以不相干的方式在UE处组合。结果，信号组合的不确定性大大降低，因为可以预期信号将总是不连贯地组合。减少的不确定性转化为链路适配中的减小偏移，并且因此增加的吞吐量。

7. 发明授权

US07756218B2 Wireless transmission system and wireless transmission method and wireless station and transmitting station for use therein 有权
标题翻译：无线传输系统和无线传输方法以及其中使用的无线站和发射站
公开(公告)号：US07756218B2
公开(公告)日：2010-07-13
申请号：US10569491
申请日：2005-09-16
申请人： Hideki Nakahara , Hitoshi Takai , Hidetoshi Yamasaki , Kenji Miyanaga , Koichiro Tanaka
发明人： Hideki Nakahara , Hitoshi Takai , Hidetoshi Yamasaki , Kenji Miyanaga , Koichiro Tanaka
IPC分类号： H04L27/00
CPC分类号： H04L1/1887 , H04B7/022 , H04B7/0667 , H04B7/0676 , H04B7/15592 , H04W84/042 , H04W84/047
摘要： A wireless transmission system exerts a maximum path diversity effect even if the maximum number of effective branches is limited to a small number. A transmission timing control section determines a transmission start timing to be a timing obtained by delaying a reference timing by a predetermined delay amount. A modulation section modulates a signal by a modulation scheme such that an anti-multipath property is exerted when the signal is demodulated on a receiver side, and transmits the modulated signal at the transmission start timing. In a receiving station, a demodulation section demodulates the receive signal to obtain receive data. The predetermined delay amount is such that signals are received at the receiving station at a plurality of signal-receiving timings, and the number of signal-receiving timings is less than or equal to a predetermined maximum number of effective branches, a difference between the signal-receiving timings is greater than or equal to a predetermined delay resolution and is less than or equal to a predetermined maximum delay.
摘要翻译：无线传输系统即使最大数量的有效分支被限制为少数，也施加最大路径分集效应。发送定时控制部分将发送开始定时确定为通过将基准定时延迟预定延迟量而获得的定时。调制部通过调制方式对信号进行调制，使得当在接收机侧解调信号时施加反多径特性，并在发送开始定时发送调制信号。在接收站中，解调部分解调接收信号以获得接收数据。预定延迟量使得在多个信号接收定时在接收站处接收信号，并且信号接收定时的数量小于或等于预定的最大有效分支数，信号之间的差接收定时大于或等于预定的延迟分辨率，并且小于或等于预定的最大延迟。

8. 发明申请

US20170093035A1 Time-Based and Frequency-Based Radio Beamforming Waveform Transmission 审中-公开
公开(公告)号：US20170093035A1
公开(公告)日：2017-03-30
申请号：US14868509
申请日：2015-09-29
申请人： The Government of the United States, as represented by the Secretary of the Army
发明人： Ryan Elwell , Mark Govoni
IPC分类号： H01Q3/24 , H01Q25/00
CPC分类号： H04B7/0671 , H04B7/0617 , H04B7/0676 , H04B7/068
摘要： Various embodiments are described that relate to radio beamforming waveform transmission. Transmission can occur, for example, in three manners. The first manner is time-based where waveform transmission is staggered at the same frequency. The second manner is frequency-based where different frequencies are used at one time. This third manner is a combination of time and frequency such that simultaneous transmission occurs, but at different times different frequencies are used.

9. 发明授权

US07664093B2 Wireless transmission system and wireless transmission method and wireless station for use therein 有权
标题翻译：无线传输系统和无线传输方法及其中使用的无线站
公开(公告)号：US07664093B2
公开(公告)日：2010-02-16
申请号：US10569730
申请日：2005-09-16
申请人： Kenji Miyanaga , Hideki Nakahara , Hidetoshi Yamasaki , Hitoshi Takai
发明人： Kenji Miyanaga , Hideki Nakahara , Hidetoshi Yamasaki , Hitoshi Takai
IPC分类号： H04J3/06
CPC分类号： H04L1/1887 , H04B7/022 , H04B7/026 , H04B7/0676 , H04B7/155 , H04L2001/0093 , H04W56/00 , H04W84/042 , H04W84/047
摘要： A wireless station capable of increasing the probability that a path diversity effect can be obtained in a case where a plurality of wireless stations transmit packets using a modulation/demodulation scheme with an anti-multipath property. A delay amount determining section (48) randomly selects a delay amount from among a plurality of candidate values. A transmission timing control section (47) determines a transmission start timing, at which to start the packet transmission, to be a timing obtained by delaying a reference timing by the delay amount selected by the delay amount determining section. At the transmission start timing, a modulation section (49) transmits the packet via an RF section (42) and an antenna (41). The difference between the candidate values is greater than or equal to a predetermined delay resolution, and the difference between a maximum candidate value and a minimum candidate value is less than or equal to a predetermined maximum delay.
摘要翻译：能够增加在多个无线站使用具有抗多径性质的调制解调方式发送分组的情况下能够获得路径分集效果的概率的无线站。延迟量确定部分（48）从多个候选值中随机选择延迟量。发送定时控制部分47确定开始分组发送的发送开始定时是通过将参考定时延迟由延迟量确定部选择的延迟量而获得的定时。在发送开始定时，调制部（49）经由RF部（42）和天线（41）发送分组。候选值之间的差大于或等于预定延迟分辨率，并且最大候选值与最小候选值之间的差小于或等于预定最大延迟。

10. 发明授权

US06842487B1 Cyclic delay diversity for mitigating intersymbol interference in OFDM systems 有权
标题翻译：循环延迟分集，用于减轻OFDM系统中的符号间干扰
公开(公告)号：US06842487B1
公开(公告)日：2005-01-11
申请号：US09667504
申请日：2000-09-22
申请人： Peter Larsson
发明人： Peter Larsson
IPC分类号： H04J11/00 , H04B7/06 , H04L1/06 , H04L27/26 , H04K1/10 , H04L27/28
CPC分类号： H04B7/0671 , H04B7/0676 , H04L1/06 , H04L5/0023 , H04L27/2602
摘要： A method and/or an apparatus for mitigating intersymbol interference. In systems which employ transmission diversity when transmitting symbols which have a guard interval, the multiple versions of the transmitted symbols have the samples of the transmitted symbols shifted relative to each version transmitted. The shifted samples of the transmitted symbol are shifted from the end of the transmitted symbol into the beginning of the transmitted symbol. A last number of samples of the transmitted symbol are copied and placed in the guard interval which precedes the symbol. The guard interval and the symbol are transmitted to a receiver.
摘要翻译：一种减轻符号间干扰的方法和/或装置。在发送具有保护间隔的符号时采用传输分集的系统中，所发送的符号的多个版本具有相对于发送的每个版本移动的发送符号的样本。发送符号的移位样本从发送符号的结尾移动到发送符号的开头。发送符号的最后数量的样本被复制并放置在符号之前的保护间隔中。保护间隔和符号被发送到接收器。

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