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1. 发明授权

US08355372B2 Transmission mode and rate selection for a wireless communication system 有权
标题翻译：无线通信系统的传输模式和速率选择
公开(公告)号：US08355372B2
公开(公告)日：2013-01-15
申请号：US12463078
申请日：2009-05-08
申请人： Santosh Abraham , Arnaud Meylan , Jay Rodney Walton
发明人： Santosh Abraham , Arnaud Meylan , Jay Rodney Walton
IPC分类号： H04W4/00
CPC分类号： H04L25/0202 , H04B7/0421 , H04L1/0002 , H04L1/0026
摘要： To select a transmission mode to use for a data transmission via a MIMO channel from station A to station B, station A obtains channel information used for spatial processing and determines the age of this information. Station A selects one of multiple transmission modes based on the age of the channel information and possibly other information (e.g., the fading characteristic of the MIMO channel). To select rate(s) to use for the data transmission, station A obtains channel state information (CSI) indicative of the received signal quality for the MIMO channel, e.g., received SNRs or “initial” rates. Station A determines the age of the CSI and selects one or more “final” rates based on the CSI, the age of the CSI, the selected transmission mode, and possibly other information. Station A processes data in accordance with the selected transmission mode and final rate(s) and transmits the processed data to station B.
摘要翻译：为了选择通过从站A到站B的MIMO信道进行数据传输的传输模式，站A获得用于空间处理的信道信息，并确定该信息的年龄。站A基于信道信息的年龄和可能的其他信息（例如，MIMO信道的衰落特性）来选择多种传输模式之一。为了选择用于数据传输的速率，站A获得指示MIMO信道的接收信号质量的信道状态信息（CSI），例如接收到的SNR或初始速率。站A确定CSI的年龄，并且基于CSI，CSI的年龄，所选择的传输模式以及可能的其他信息来选择一个或多个最终速率。站A根据选择的传输模式和最终速率处理数据，并将处理的数据发送到站B.

2. 发明申请

US20090290655A1 TRANSMISSION MODE AND RATE SELECTION FOR A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：无线通信系统的传输模式和速率选择
公开(公告)号：US20090290655A1
公开(公告)日：2009-11-26
申请号：US12463078
申请日：2009-05-08
申请人： Santosh Abraham , Arnaud Meylan , Jay Rodney Walton
发明人： Santosh Abraham , Arnaud Meylan , Jay Rodney Walton
IPC分类号： H04B7/02
CPC分类号： H04L25/0202 , H04B7/0421 , H04L1/0002 , H04L1/0026
摘要： To select a transmission mode to use for a data transmission via a MIMO channel from station A to station B, station A obtains channel information used for spatial processing and determines the age of this information. Station A selects one of multiple transmission modes based on the age of the channel information and possibly other information (e.g., the fading characteristic of the MIMO channel). To select rate(s) to use for the data transmission, station A obtains channel state information (CSI) indicative of the received signal quality for the MIMO channel, e.g., received SNRs or “initial” rates. Station A determines the age of the CSI and selects one or more “final” rates based on the CSI, the age of the CSI, the selected transmission mode, and possibly other information. Station A processes data in accordance with the selected transmission mode and final rate(s) and transmits the processed data to station B.
摘要翻译：为了选择通过从站A到站B的MIMO信道进行数据传输的传输模式，站A获得用于空间处理的信道信息，并确定该信息的年龄。站A基于信道信息的年龄和可能的其他信息（例如，MIMO信道的衰落特性）来选择多种传输模式之一。为了选择用于数据传输的速率，站A获得指示MIMO信道的接收信号质量的信道状态信息（CSI），例如接收到的SNR或“初始”速率。站A确定CSI的年龄，并且基于CSI，CSI的年龄，所选择的传输模式以及可能的其他信息来选择一个或多个“最终”速率。站A根据选择的传输模式和最终速率处理数据，并将处理的数据发送到站B.

3. 发明授权

US07564814B2 Transmission mode and rate selection for a wireless communication system 有权
标题翻译：无线通信系统的传输模式和速率选择
公开(公告)号：US07564814B2
公开(公告)日：2009-07-21
申请号：US11101086
申请日：2005-04-06
申请人： Santosh Abraham , Arnaud Meylan , Jay Rodney Walton
发明人： Santosh Abraham , Arnaud Meylan , Jay Rodney Walton
IPC分类号： H04W4/00
CPC分类号： H04L25/0202 , H04B7/0421 , H04L1/0002 , H04L1/0026
摘要： To select a transmission mode to use for a data transmission via a MIMO channel from station A to station B, station A obtains channel information used for spatial processing and determines the age of this information. Station A selects one of multiple transmission modes based on the age of the channel information and possibly other information (e.g., the fading characteristic of the MIMO channel). To select rate(s) to use for the data transmission, station A obtains channel state information (CSI) indicative of the received signal quality for the MIMO channel, e.g., received SNRs or “initial” rates. Station A determines the age of the CSI and selects one or more “final” rates based on the CSI, the age of the CSI, the selected transmission mode, and possibly other information. Station A processes data in accordance with the selected transmission mode and final rate(s) and transmits the processed data to station B.
摘要翻译：为了选择通过从站A到站B的MIMO信道进行数据传输的传输模式，站A获得用于空间处理的信道信息，并确定该信息的年龄。站A基于信道信息的年龄和可能的其他信息（例如，MIMO信道的衰落特性）来选择多种传输模式之一。为了选择用于数据传输的速率，站A获得指示MIMO信道的接收信号质量的信道状态信息（CSI），例如接收到的SNR或“初始”速率。站A确定CSI的年龄，并且基于CSI，CSI的年龄，所选择的传输模式以及可能的其他信息来选择一个或多个“最终”速率。站A根据选择的传输模式和最终速率处理数据，并将处理的数据发送到站B.

4. 发明授权

US08483105B2 High speed media access control 有权
公开(公告)号：US08483105B2
公开(公告)日：2013-07-09
申请号：US10964321
申请日：2004-10-13
申请人： Sanjiv Nanda , Arnaud Meylan , Jay Rodney Walton
发明人： Sanjiv Nanda , Arnaud Meylan , Jay Rodney Walton
IPC分类号： H04B7/005
CPC分类号： H04L29/06068 , H04L1/0025 , H04L1/0073 , H04L1/0078 , H04L1/0618 , H04L1/1621 , H04L1/1671 , H04L12/403 , H04L12/4633 , H04L29/06 , H04L69/08 , H04L69/24 , H04W28/04 , H04W28/06 , H04W48/08 , H04W52/383 , H04W74/06
摘要： Embodiments disclosed herein for MAC processing for efficient use of high throughput systems and that may be backward compatible with various types of legacy systems. In one aspect, a data transmission structure comprises a consolidated poll and one or more frames transmitted in accordance with the consolidated poll. In another aspect, a Time Division Duplexing (TDD) data transmission structure comprises a pilot, a consolidated poll, and zero or more access point to remote station frames in accordance with the consolidated poll. In one aspect, frames are transmitted sequentially with no or substantially reduced interframe spacing. In another aspect, a guard interframe spacing may be introduced between frames transmitted from different sources, or with substantially different power levels. In another aspect, a single preamble is transmitted in association with one or more frames. In another aspect, a block acknowledgement is transmitted subsequent to the transmission of one or more sequential frames.

5. 发明申请

US20100150077A1 APPARATUS AND METHOD FOR WIRELESS COMMUNICATION VIA AT LEAST ONE OF DIRECTIONAL AND OMNI-DIRECTION ANTENNAS 有权
公开(公告)号：US20100150077A1
公开(公告)日：2010-06-17
申请号：US12711954
申请日：2010-02-24
申请人： Sanjiv Nanda , Saishankar Nandagopalan , Santosh Abraham , Jay Rodney Walton , Ernesl T. Ozaki
发明人： Sanjiv Nanda , Saishankar Nandagopalan , Santosh Abraham , Jay Rodney Walton , Ernesl T. Ozaki
IPC分类号： H04W4/00
CPC分类号： H04B15/00 , H01Q1/246 , H01Q3/24 , H04B7/0602 , H04B7/0615 , H04B7/0842 , H04W16/28 , H04W28/18
摘要： Techniques for using at least one of omni-directional and directional antennas for communication are described. A station may be equipped antenna elements selectable for use as an omni-directional antenna or one or more directional antennas. The station may select the omni-directional antenna or a directional antenna for use for communication based on various factors such as, e.g., whether the location or direction of a target station for communication is known, whether control frames or data frames are being exchanged, etc.

6. 发明申请

US20100150038A1 APPARATUS AND METHOD FOR WIRELESS COMMUNICATION VIA AT LEAST ONE OF DIRECTIONAL AND OMNI-DIRECTION ANTENNAS 有权
标题翻译：用于无线通信的装置和方法，通过至少一个方向和OMNI-方向天线
公开(公告)号：US20100150038A1
公开(公告)日：2010-06-17
申请号：US12712715
申请日：2010-02-25
申请人： Sanjiv Nanda , Saishankar Nandagopalan , Santosh Abraham , Jay Rodney Walton , Ernest T. Ozaki
发明人： Sanjiv Nanda , Saishankar Nandagopalan , Santosh Abraham , Jay Rodney Walton , Ernest T. Ozaki
IPC分类号： H04B7/00
CPC分类号： H04B15/00 , H01Q1/246 , H01Q3/24 , H04B7/0602 , H04B7/0615 , H04B7/0842 , H04W16/28 , H04W28/18
摘要： Techniques for using at least one of omni-directional and directional antennas for communication are described. A station may be equipped antenna elements selectable for use as an omni-directional antenna or one or more directional antennas. The station may select the omni-directional antenna or a directional antenna for use for communication based on various factors such as, e.g., whether the location or direction of a target station for communication is known, whether control frames or data frames are being exchanged, etc.
摘要翻译：描述了使用全向和定向天线中的至少一个进行通信的技术。站可以配备可选择用作全向天线或一个或多个定向天线的天线元件。基站可以基于各种因素选择全向天线或定向天线，用于通信，例如，目的站通信的位置或方向是否已知，是否正在交换控制帧或数据帧，等等

7. 发明授权

US08175532B2 Apparatus and method for wireless communication via at least one of directional and omni-direction antennas 有权
公开(公告)号：US08175532B2
公开(公告)日：2012-05-08
申请号：US11758578
申请日：2007-06-05
申请人： Sanjiv Nanda , Saishankar Nandagopalan , Santosh Abraham , Jay Rodney Walton , Ernest T. Ozaki
发明人： Sanjiv Nanda , Saishankar Nandagopalan , Santosh Abraham , Jay Rodney Walton , Ernest T. Ozaki
IPC分类号： H04B1/00
CPC分类号： H04B15/00 , H01Q1/246 , H01Q3/24 , H04B7/0602 , H04B7/0615 , H04B7/0842 , H04W16/28 , H04W28/18
摘要： Techniques for using at least one of omni-directional and directional antennas for communication are described. A station may be equipped antenna elements selectable for use as an omni-directional antenna or one or more directional antennas. The station may select the omni-directional antenna or a directional antenna for use for communication based on various factors such as, e.g., whether the location or direction of a target station for communication is known, whether control frames or data frames are being exchanged, etc.

8. 发明授权

US08903016B2 Spatial spreading in a multi-antenna communication system 有权
标题翻译：多天线通信系统中的空间扩展
公开(公告)号：US08903016B2
公开(公告)日：2014-12-02
申请号：US13526160
申请日：2012-06-18
申请人： Jay Rodney Walton , Lizhong Zheng , John W. Ketchum , Mark S. Wallace , Steven J. Howard
发明人： Jay Rodney Walton , Lizhong Zheng , John W. Ketchum , Mark S. Wallace , Steven J. Howard
IPC分类号： H04L27/26 , H04B7/02 , H04B7/06 , H04L1/06 , H04B7/04
CPC分类号： H04B7/0417 , H04B7/0456 , H04B7/0669 , H04B17/336 , H04L1/06
摘要： Spatial spreading is performed in a multi-antenna system to randomize an “effective” channel observed by a receiving entity for each transmitted data symbol block. For a MIMO system, at a transmitting entity, data is processed (e.g., encoded, interleaved, and modulated) to obtain ND data symbol blocks to be transmitted in NM transmission spans, where ND≧1 and NM>1. The ND blocks are partitioned into NM data symbol subblocks, one subblock for each transmission span. A steering matrix is selected (e.g., in a deterministic or pseudo-random manner from among a set of L steering matrices, where L>1) for each subblock. Each data symbol subblock is spatially processed with the steering matrix selected for that subblock to obtain transmit symbols, which are further processed and transmitted via NT transmit antennas in one transmission span. The ND data symbol blocks are thus spatially processed with NM steering matrices and observe an ensemble of channels.
摘要翻译：在多天线系统中执行空间扩展，以随机化接收实体针对每个发送的数据符号块观察到的“有效”信道。对于MIMO系统，在发送实体处理（例如，编码，交织和调制）数据，以获得将以NM≥1和NM> 1的NM传输跨度发送的ND数据符号块。 ND块被划分为NM数据符号子块，每个传输跨度的一个子块。对于每个子块，选择导向矩阵（例如，以确定性或伪随机方式从一组L个导引矩阵中，其中L> 1）。每个数据符号子块用为该子块选择的导引矩阵进行空间处理，以获得在一个传输范围内经由NT个发射天线进一步处理和传输的发射符号。因此，ND数据符号块用NM导引矩阵进行空间处理，并观察信道的集合。

9. 发明授权

US08792441B2 Method and apparatus for increasing spectrum use efficiency in a mesh network 有权
标题翻译：提高网格网络频谱利用效率的方法和装置
公开(公告)号：US08792441B2
公开(公告)日：2014-07-29
申请号：US13283510
申请日：2011-10-27
申请人： Jay Rodney Walton , Sanjiv Nanda
发明人： Jay Rodney Walton , Sanjiv Nanda
IPC分类号： H04W72/04 , H04W74/04 , H04W74/08 , H04W72/12 , H04W84/18 , H04W16/28
CPC分类号： H04W74/0808 , H04W16/28 , H04W72/1231 , H04W84/18
摘要： Mesh Network Access Points (APs) points, including gateways and routers, are deployed over a geographic area. The APs monitor the communication channel for other carriers and transmit accordingly. The APs selectively co-transmit when other carriers are sensed, if the efficiency of the mesh network will improve. APs select a transmission rate based on observed carrier-to-interference ratios. APs use directional antennas to increase carrier-to-interference ratios and spectral efficiency. AP transmit schedules are adaptable and adjusted according to observed carrier-to-interference measurements.
摘要翻译：网络接入点（AP）点，包括网关和路由器，部署在一个地理区域。 AP监控其他运营商的通信信道，并进行相应的传输。当其他载波被感测到时，如果网状网络的效率将提高，则选择性地共同发射AP。 AP基于观察到的载波干扰比选择传输速率。 AP使用定向天线来增加载波干扰比和频谱效率。 AP发射时间表可以根据观测到的载波干扰测量进行适应性调整。

10. 发明授权

US08767701B2 Unified MIMO transmission and reception 有权
标题翻译：统一的MIMO传输和接收
公开(公告)号：US08767701B2
公开(公告)日：2014-07-01
申请号：US12534137
申请日：2009-08-02
申请人： Steven J. Howard , Jay Rodney Walton , Mark S. Wallace
发明人： Steven J. Howard , Jay Rodney Walton , Mark S. Wallace
IPC分类号： H04B7/02 , H04B7/04 , H04B7/12
CPC分类号： H04B7/0413 , H04B7/0417 , H04B7/0421 , H04B7/0617 , H04L1/0026
摘要： A “unified” MIMO system that supports multiple operating modes for efficient data transmission is described. Each operating mode is associated with different spatial processing at a transmitting entity. For example, four operating modes may be defined for (1) full-CSI or partial-CSI transmission and (2) with or without steering transmit diversity (STD). An appropriate operating mode may be selected for use based on various factors (e.g., availability of a good channel estimate). With steering transmit diversity, data is spatially spread and transmitted on multiple spatial channels, and a single rate may then be used for all spatial channels used for data transmission. A receiving entity may utilize a minimum mean square error (MMSE) technique for all operating modes. The receiving entity may derive a spatial filter matrix and perform receiver spatial processing in the same manner for all operating modes, albeit with different effective channel response matrices.
摘要翻译：描述了支持多种操作模式以实现有效数据传输的“统一”MIMO系统。每个操作模式与发送实体处的不同空间处理相关联。例如，可以为（1）全CSI或部分CSI传输定义四种操作模式，以及（2）具有或不具有导向发射分集（STD）的操作模式。可以基于各种因素（例如，良好信道估计的可用性）来选择适当的操作模式来使用。利用转向发射分集，数据在空间上扩展并在多个空间信道上传输，然后可以将单个速率用于用于数据传输的所有空间信道。接收实体可以针对所有操作模式使用最小均方误差（MMSE）技术。接收实体可以导出空间滤波器矩阵并且以相同的方式对所有操作模式执行接收机空间处理，尽管具有不同的有效信道响应矩阵。

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