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1. 发明授权

US09985701B2 Signaling and frame structure for massive MIMO cellular telecommunication systems 有权
公开(公告)号：US09985701B2
公开(公告)日：2018-05-29
申请号：US14703293
申请日：2015-05-04
申请人： NATIONAL INSTRUMENTS CORPORATION
发明人： Ian C. Wong , Karl F. Nieman , Nikhil U. Kundargi
IPC分类号： H04B7/02 , H04L1/02 , H04B7/0456 , H04L7/00 , H04B7/0413 , H04B7/024 , H04L5/00 , H04B7/0452 , H04W56/00 , H04W88/08
CPC分类号： H04B7/0456 , H04B7/024 , H04B7/0413 , H04B7/0452 , H04L5/0048 , H04L7/0012 , H04L7/0025 , H04W56/00 , H04W88/08 , H04W88/085
摘要： Techniques are disclosed relating to signaling and frame structure for massive MIMO communication systems. In some embodiments, an apparatus is configured to receive an uplink pilot symbol from a mobile device over a first channel and receive uplink data from the mobile device over the first channel, where the uplink data is included in one or more orthogonal frequency division multiplexing (OFDM) symbols at a symbol rate. In these embodiments, the apparatus is configured to, determine channel information based on the pilot symbol, precode downlink data based on the channel information, and transmit the precoded downlink data to the mobile device. In these embodiments, a transition interval between receiving the uplink pilot symbol and beginning to transmit the precoded downlink data corresponds to less than five OFDM symbols at the symbol rate. This may facilitate reciprocity-based precoding for fast-moving mobile devices, in some embodiments.

2. 发明授权

US09577729B2 Synchronization of large antenna count systems 有权
标题翻译：大型天线计数系统的同步
公开(公告)号：US09577729B2
公开(公告)日：2017-02-21
申请号：US14703262
申请日：2015-05-04
申请人： NATIONAL INSTRUMENTS CORPORATION
发明人： Ian C. Wong , Karl F. Nieman , Nikhil U. Kundargi , Brooks C. Prumo
IPC分类号： H04L7/00 , H04B7/04 , H04B7/02 , H04L5/00 , H04W56/00 , H04W88/08
CPC分类号： H04B7/0456 , H04B7/024 , H04B7/0413 , H04B7/0452 , H04L5/0048 , H04L7/0012 , H04L7/0025 , H04W56/00 , H04W88/08 , H04W88/085
摘要： Techniques are disclosed relating to synchronization of radios in a large antenna count (LAC) system. In some embodiments, a LAC system includes a plurality of slave radios, a clock and trigger distribution system, and a master device. In these embodiments, the plurality of slave radios are configured to establish a fixed relationship between a reference clock and their respective local clocks. In these embodiments, the master device and plurality of slave radios are configured to generate and align respective common periodic time reference (CPTR) signals, at a lower frequency than the local clocks. In these embodiments, the master device is configured to transmit a trigger signal based on its CPTR and the plurality of slave radios are configured to perform an action based on the trigger at a subsequent edge of their CPTRs. This may allow synchronization of sampling for antennas in a massive MIMO base station, for example. In some embodiments the master device a radio and includes a local clock, is configured to establish and maintain a fixed relationship between a reference clock and its local clock, and is configured to perform an action based on the trigger at the subsequent edge of its CPTR.
摘要翻译：公开了关于大天线计数（LAC）系统中的无线电的同步的技术。在一些实施例中，LAC系统包括多个从无线电，时钟和触发分配系统以及主设备。在这些实施例中，多个从无线电装置被配置成建立参考时钟与它们各自的本地时钟之间的固定关系。在这些实施例中，主设备和多个从属无线电被配置为以比本地时钟低的频率产生和对准各自的公共周期时间基准（CPTR）信号。在这些实施例中，主设备被配置为基于其CPTR发送触发信号，并且多个从属无线电被配置为基于在其CPTR的后续边缘处的触发来执行动作。这可以允许例如在大规模MIMO基站中的天线的采样同步。在一些实施例中，主设备无线电并且包括本地时钟，被配置为建立和维持参考时钟与其本地时钟之间的固定关系，并且被配置为基于在其CPTR的后续边缘处的触发来执行动作。

3. 发明申请

US20140040855A1 Optimization of a Data Flow Program Based on Access Pattern Information 有权
标题翻译：基于访问模式信息的数据流程序优化
公开(公告)号：US20140040855A1
公开(公告)日：2014-02-06
申请号：US14050084
申请日：2013-10-09
申请人： NATIONAL INSTRUMENTS CORPORATION
发明人： Guoqiang Wang , Kaushik Ravindran , Rhishikesh Limaye , Guang Yang , Arkadeb Ghosal , Hugo A. Andrade , John R. Allen , Jacob Kornerup , Ian C. Wong , Jeffrey N. Correll , Michael J. Trimborn
IPC分类号： G06F9/44
CPC分类号： G06F8/34 , G06F9/4494 , G06F17/5022 , G06F17/505 , G06F17/5054
摘要： System and method for optimizing a data flow diagram based on access pattern information are described. Access pattern information for a data flow diagram may be received. The data flow diagram may include a plurality of interconnected actors, e.g., functional blocks, visually indicating functionality of the data flow diagram. The access pattern information may include one or more of: input pattern information specifying cycles on which tokens are consumed by at least one of the actors, or output pattern information specifying cycles on which tokens are produced by at least one of the actors. A program that implements the functionality of the data flow diagram may be generated based at least in part on the access pattern information.
摘要翻译：描述了基于访问模式信息优化数据流图的系统和方法。可以接收数据流程图的访问模式信息。数据流程图可以包括多个互连的执行者，例如功能块，在视觉上指示数据流图的功能。访问模式信息可以包括以下中的一个或多个：指定循环的输入模式信息，其中由至少一个参与者消耗令牌，或输出模式信息指定周期中的至少一个角色产生令牌。可以至少部分地基于访问模式信息来生成实现数据流程图的功能的程序。

4. 发明申请

US20150326383A1 Synchronization of Large Antenna Count Systems 有权
标题翻译：大型天线计数系统的同步
公开(公告)号：US20150326383A1
公开(公告)日：2015-11-12
申请号：US14703262
申请日：2015-05-04
申请人： NATIONAL INSTRUMENTS CORPORATION
发明人： Ian C. Wong , Karl F. Nieman , Nikhil U. Kundargi , Brooks C. Prumo
IPC分类号： H04L7/00 , H04B7/02 , H04B7/04
CPC分类号： H04B7/0456 , H04B7/024 , H04B7/0413 , H04B7/0452 , H04L5/0048 , H04L7/0012 , H04L7/0025 , H04W56/00 , H04W88/08 , H04W88/085
摘要： Techniques are disclosed relating to synchronization of radios in a large antenna count (LAC) system. In some embodiments, a LAC system includes a plurality of slave radios, a clock and trigger distribution system, and a master device. In these embodiments, the plurality of slave radios are configured to establish a fixed relationship between a reference clock and their respective local clocks. In these embodiments, the master device and plurality of slave radios are configured to generate and align respective common periodic time reference (CPTR) signals, at a lower frequency than the local clocks. In these embodiments, the master device is configured to transmit a trigger signal based on its CPTR and the plurality of slave radios are configured to perform an action based on the trigger at a subsequent edge of their CPTRs. This may allow synchronization of sampling for antennas in a massive MIMO base station, for example. In some embodiments the master device a radio and includes a local clock, is configured to establish and maintain a fixed relationship between a reference clock and its local clock, and is configured to perform an action based on the trigger at the subsequent edge of its CPTR.
摘要翻译：公开了关于大天线计数（LAC）系统中的无线电的同步的技术。在一些实施例中，LAC系统包括多个从无线电，时钟和触发分配系统以及主设备。在这些实施例中，多个从无线电装置被配置成建立参考时钟与它们各自的本地时钟之间的固定关系。在这些实施例中，主设备和多个从属无线电被配置为以比本地时钟低的频率产生和对准各自的公共周期时间基准（CPTR）信号。在这些实施例中，主设备被配置为基于其CPTR发送触发信号，并且多个从属无线电被配置为基于在其CPTR的后续边缘处的触发来执行动作。这可以允许例如在大规模MIMO基站中的天线的采样同步。在一些实施例中，主设备无线电并且包括本地时钟，被配置为建立和维持参考时钟与其本地时钟之间的固定关系，并且被配置为基于在其CPTR的后续边缘处的触发来执行动作。

5. 发明申请

US20150326286A1 Massive MIMO Architecture 审中-公开
标题翻译：大规模MIMO架构
公开(公告)号：US20150326286A1
公开(公告)日：2015-11-12
申请号：US14703214
申请日：2015-05-04
申请人： NATIONAL INSTRUMENTS CORPORATION
发明人： Ian C. Wong , Karl F. Nieman , Nikhil U. Kundargi
IPC分类号： H04B7/04 , H04W56/00
CPC分类号： H04B7/0456 , H04B7/024 , H04B7/0413 , H04B7/0452 , H04L5/0048 , H04L7/0012 , H04L7/0025 , H04W56/00 , H04W88/08 , H04W88/085
摘要： Techniques are disclosed relating to a massive MIMO base station architecture. In some embodiments, a base station is configured to combine signals received by multiple antennas and, for at least a subset of processing elements included in the base station, each processing element is configured to operate on a different portion of the combined signals. In these embodiments, each portion includes signals from multiple antennas. In some embodiments, the portions are different time and/or frequency portions of the combined signals. In some embodiments, this distributed processing may allow the number of antennas of the base station to scale dramatically, provide dynamic re-configurability, facilitate real-time reciprocity-based precoding, etc.
摘要翻译：公开了与大规模MIMO基站架构相关的技术。在一些实施例中，基站被配置为组合由多个天线接收的信号，并且对于基站中包括的处理元件的至少一个子集，每个处理元件被配置为在组合信号的不同部分上操作。在这些实施例中，每个部分包括来自多个天线的信号。在一些实施例中，这些部分是组合信号的不同时间和/或频率部分。在一些实施例中，这种分布式处理可以允许基站的天线数目显着地缩放，提供动态可重新配置性，促进基于实时互惠的预编码等。

6. 发明授权

US10855346B2 Massive MIMO architecture 有权
公开(公告)号：US10855346B2
公开(公告)日：2020-12-01
申请号：US14703214
申请日：2015-05-04
申请人： NATIONAL INSTRUMENTS CORPORATION
发明人： Ian C. Wong , Karl F. Nieman , Nikhil U. Kundargi
IPC分类号： H04L7/00 , H04B7/0413 , H04B7/0456 , H04B7/024 , H04L5/00 , H04W56/00 , H04B7/0452 , H04W88/08
摘要： Techniques are disclosed relating to a massive MIMO base station architecture. In some embodiments, a base station is configured to combine signals received by multiple antennas and, for at least a subset of processing elements included in the base station, each processing element is configured to operate on a different portion of the combined signals. In these embodiments, each portion includes signals from multiple antennas. In some embodiments, the portions are different time and/or frequency portions of the combined signals. In some embodiments, this distributed processing may allow the number of antennas of the base station to scale dramatically, provide dynamic re-configurability, facilitate real-time reciprocity-based precoding, etc.

7. 发明授权

US09335977B2 Optimization of a data flow program based on access pattern information 有权
标题翻译：基于访问模式信息优化数据流程序
公开(公告)号：US09335977B2
公开(公告)日：2016-05-10
申请号：US14050084
申请日：2013-10-09
申请人： NATIONAL INSTRUMENTS CORPORATION
发明人： Guoqiang Wang , Kaushik Ravindran , Rhishikesh Limaye , Guang Yang , Arkadeb Ghosal , Hugo A. Andrade , John R. Allen , Jacob Kornerup , Ian C. Wong , Jeffrey N. Correll , Michael J. Trimborn
IPC分类号： G06F17/50 , G06F9/00 , G06F9/44
CPC分类号： G06F8/34 , G06F9/4494 , G06F17/5022 , G06F17/505 , G06F17/5054
摘要： System and method for optimizing a data flow diagram based on access pattern information are described. Access pattern information for a data flow diagram may be received. The data flow diagram may include a plurality of interconnected actors, e.g., functional blocks, visually indicating functionality of the data flow diagram. The access pattern information may include one or more of: input pattern information specifying cycles on which tokens are consumed by at least one of the actors, or output pattern information specifying cycles on which tokens are produced by at least one of the actors. A program that implements the functionality of the data flow diagram may be generated based at least in part on the access pattern information.
摘要翻译：描述了基于访问模式信息优化数据流图的系统和方法。可以接收数据流程图的访问模式信息。数据流程图可以包括多个互连的执行者，例如功能块，在视觉上指示数据流图的功能。访问模式信息可以包括以下中的一个或多个：指定循环的输入模式信息，其中由至少一个参与者消耗令牌，或输出模式信息指定周期中的至少一个角色产生令牌。可以至少部分地基于访问模式信息来生成实现数据流程图的功能的程序。

8. 发明申请

US20150326291A1 Signaling and Frame Structure for Massive MIMO Cellular Telecommunication Systems 有权
标题翻译：大量MIMO蜂窝电信系统的信令和帧结构
公开(公告)号：US20150326291A1
公开(公告)日：2015-11-12
申请号：US14703293
申请日：2015-05-04
申请人： NATIONAL INSTRUMENTS CORPORATION
发明人： Ian C. Wong , Karl F. Nieman , Nikhil U. Kundargi
IPC分类号： H04B7/04 , H04L5/00
CPC分类号： H04B7/0456 , H04B7/024 , H04B7/0413 , H04B7/0452 , H04L5/0048 , H04L7/0012 , H04L7/0025 , H04W56/00 , H04W88/08 , H04W88/085
摘要： Techniques are disclosed relating to signaling and frame structure for massive MIMO communication systems. In some embodiments, an apparatus is configured to receive an uplink pilot symbol from a mobile device over a first channel and receive uplink data from the mobile device over the first channel, where the uplink data is included in one or more orthogonal frequency division multiplexing (OFDM) symbols at a symbol rate. In these embodiments, the apparatus is configured to, determine channel information based on the pilot symbol, precode downlink data based on the channel information, and transmit the precoded downlink data to the mobile device. In these embodiments, a transition interval between receiving the uplink pilot symbol and beginning to transmit the precoded downlink data corresponds to less than five OFDM symbols at the symbol rate. This may facilitate reciprocity-based precoding for fast-moving mobile devices, in some embodiments.
摘要翻译：公开了涉及大量MIMO通信系统的信令和帧结构的技术。在一些实施例中，设备被配置为通过第一信道从移动设备接收上行链路导频符号，并且在第一信道上从移动设备接收上行链路数据，其中上行链路数据被包括在一个或多个正交频分复用中 OFDM）符号。在这些实施例中，该装置被配置为基于导频符号确定基于信道信息的预编码下行链路数据的信道信息，并将预编码的下行链路数据发送到移动设备。在这些实施例中，接收上行导频符号并开始发送预编码的下行链路数据之间的转换间隔对应于符号速率下的少于5个OFDM符号。这在一些实施例中可以促进用于快速移动的移动设备的基于互易的预编码。

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