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1. 发明授权

US6141567A Apparatus and method for beamforming in a changing-interference environment 有权
标题翻译：在变化干扰环境中波束成形的装置和方法
公开(公告)号：US6141567A
公开(公告)日：2000-10-31
申请号：US327776
申请日：1999-06-07
申请人： Michael Youssefmir , Mitchell D. Trott , Kamaraj Karuppiah , Paul Petrus
发明人： Michael Youssefmir , Mitchell D. Trott , Kamaraj Karuppiah , Paul Petrus
IPC分类号： H01Q3/26 , H04B7/06 , H04B7/08 , H04B7/10 , H04B7/26 , H04L1/06 , H04B7/00
CPC分类号： H04B7/0615 , H04B7/0619 , H04B7/0848 , H04B7/0851 , H04L25/0204 , H04L25/021 , H04B7/0617 , H04B7/086 , H04L25/03203 , H04L25/0328 , H04L25/03299
摘要： An apparatus and method for adaptively producing transmitted signals and processing received signals in a communication system which includes smart antenna array of antenna elements. When processing received signals, the invention modifies an existing processing scheme by incorporating information about a second set of signals for which training or other characteristic information such as a reference is unknown to information about a first set of signals for which characteristic information such as a reference is known, prior to executing the processing scheme. This approach can be used to modify the receive weights which determine the relative weight assigned to the signals received from each of a plurality of antenna elements to take into account the presence of a changing interference environment. This permits an adaptive updating of the receive weights based on the additional information provided by the second set of data., and may be accomplished faster and with less computational resources than required to determine the weights based on applying the entire processing scheme to the second set of data. In addition, assuming a relationship between the transmit and receive environment, the invention can also be used to modify the transmit weights used by the base station.
摘要翻译：一种用于在包括天线元件的智能天线阵列的通信系统中自适应地产生发射信号和处理接收信号的装置和方法。在处理接收到的信号时，本发明通过并入关于第二组信号的信息来修改现有的处理方案，对于这样的第二组信号，训练或诸如参考的其他特征信息对于关于哪个特征信息例如参考的第一组信号的信息是未知的在执行处理方案之前是已知的。该方法可以用于修改接收权重，其确定分配给从多个天线元件中的每个天线元件接收的信号的相对权重，以考虑变化的干扰环境的存在。这允许基于由第二组数据提供的附加信息来适应性地更新接收权重，并且可以比基于将整个处理方案应用于第二组来确定权重所需的更快和更少的计算资源来实现更少的计算资源数据的。此外，假设发送和接收环境之间的关系，本发明也可以用于修改由基站使用的发送权重。

2. 发明授权

US06275543B1 Method for reference signal generation in the presence of frequency offsets in a communications station with spatial processing 有权
公开(公告)号：US06275543B1
公开(公告)日：2001-08-14
申请号：US09153110
申请日：1998-09-15
申请人： Paul Petrus , Alain M. Chiodini , Mitchell D. Trott , David M. Parish , Michael Youssefmir , Dov Rosenfeld
发明人： Paul Petrus , Alain M. Chiodini , Mitchell D. Trott , David M. Parish , Michael Youssefmir , Dov Rosenfeld
IPC分类号： H04L2714
CPC分类号： H04L27/2332 , H04B7/0851 , H04L1/06 , H04L2027/003 , H04L2027/0046 , H04L2027/0095
摘要： A method for generating a reference signal from a modulated signal transmitted to a communications station that includes an array of antenna elements and spatial processing means including: separating from the signals received at the antenna elements a copy signal corresponding to the signal transmitted by a particular remote station using an initial spatial weight vector corresponding to the particular remote station; determining from the terminal copy signal a reference signal having substantially the same frequency offset and time alignment as the received antenna signals; and computing a new spatial weight vector by optimizing a cost function, the cost function using the received antenna signals and the reference signal. For demodulation, the method further includes extracting the symbols of the modulated signal.

3. 发明授权

US06690747B2 Method for reference signal generation in the presence of frequency offsets in a communications station with spatial processing 有权
标题翻译：在具有空间处理的通信站中存在频率偏移的参考信号生成方法
公开(公告)号：US06690747B2
公开(公告)日：2004-02-10
申请号：US09877807
申请日：2001-06-06
申请人： Paul Petrus , Alain M. Chiodini , Mitchell D Trott , David M. Parish , Michael Youssefmir , Dov Rosenfeld
发明人： Paul Petrus , Alain M. Chiodini , Mitchell D Trott , David M. Parish , Michael Youssefmir , Dov Rosenfeld
IPC分类号： H04L2714
CPC分类号： H04L27/2332 , H04B7/0851 , H04L1/06 , H04L2027/003 , H04L2027/0046 , H04L2027/0095
摘要： A method for generating a reference signal from a modulated signal transmitted to a communications station that includes an array of antenna elements and spatial processing means including: separating from the signals received at the antenna elements a copy signal corresponding to the signal transmitted by a particular remote station using an initial spatial weight vector corresponding to the particular remote station; determining from the terminal copy signal a reference signal having substantially the same frequency offset and time alignment as the received antenna signals; and computing a new spatial weight vector by optimizing a cost function, the cost function using the received antenna signals and the reference signal. For demodulation, the method further includes extracting the symbols of the modulated signal.
摘要翻译：一种用于从发射到通信站的调制信号产生参考信号的方法，所述调制信号包括天线元件阵列和空间处理装置，所述调制信号包括：与在天线元件处接收到的信号分离出与由特定遥控器发送的信号相对应的复制信号使用对应于特定远程站的初始空间权重向量; 从所述终端复制信号确定具有与所接收的天线信号基本相同的频率偏移和时间对准的参考信号; 以及通过优化成本函数，使用所接收的天线信号的成本函数和参考信号来计算新的空间权重向量。为了解调，该方法还包括提取调制信号的符号。

4. 发明授权

US06839573B1 Apparatus and method for beamforming in a changing-interference environment 有权
标题翻译：在变化干扰环境中波束成形的装置和方法
公开(公告)号：US06839573B1
公开(公告)日：2005-01-04
申请号：US09704393
申请日：2000-10-31
申请人： Michael Youssefmir , Mitchell D. Trott , Kamarai Karuppiah , Paul Petrus
发明人： Michael Youssefmir , Mitchell D. Trott , Kamarai Karuppiah , Paul Petrus
IPC分类号： H01Q3/26 , H04B7/06 , H04B7/08 , H04B7/10 , H04B7/26 , H04L1/06 , H04M1/00
CPC分类号： H04B7/0615 , H04B7/0617 , H04B7/0619 , H04B7/0848 , H04B7/0851 , H04B7/086 , H04L25/0204 , H04L25/021 , H04L25/03203 , H04L25/0328 , H04L25/03299
摘要： An apparatus and method for adaptively producing transmitted signals and processing received signals in a communication system which includes smart antenna array of antenna elements. When processing received signals, the invention modifies an existing processing scheme by incorporating information about a second set of signals for which training or other characteristic information such as a reference is unknown to information about a first set of signals for which characteristic information such as a reference is known, prior to executing the processing scheme. This approach can be used to modify the receive weights which determine the relative weight assigned to the signals received from each of a plurality of antenna elements to take into account the presence of a changing interference environment. This permits an adaptive updating of the receive weights based on the additional information provided by the second set of data, and may be accomplished faster and with less computational resources than required to determine the weights based on applying the entire processing scheme to the second set of data. In addition, assuming a relationship between the transmit and receive environment, the invention can also be used to modify the transmit weights used by the base station.

5. 发明授权

US07512109B2 Slot structure for radio communications system 失效
标题翻译：无线电通信系统的插槽结构
公开(公告)号：US07512109B2
公开(公告)日：2009-03-31
申请号：US10262108
申请日：2002-09-30
申请人： Mitchell D. Trott , Mithat C. Dogan , Paul Petrus , Sundar G. Sankaran
发明人： Mitchell D. Trott , Mithat C. Dogan , Paul Petrus , Sundar G. Sankaran
IPC分类号： H04B7/212
CPC分类号： H04B7/0851 , H04B7/2656 , H04B7/2659 , H04L27/18
摘要： In one embodiment, the present invention includes a slot in a repeating time division frame with a first training sequence, an information sequence after the first training sequence, and a second training sequence after the information sequence. In some embodiments either the first or the second training sequences indicates a type for the information sequence, such as a random access channel message and a traffic channel message, a configuration message, a channel assignment message, or a data traffic message.
摘要翻译：在一个实施例中，本发明包括具有第一训练序列，第一训练序列之后的信息序列和信息序列之后的第二训练序列的重复时分帧中的时隙。在一些实施例中，第一或第二训练序列指示信息序列的类型，诸如随机接入信道消息和业务信道消息，配置消息，信道分配消息或数据业务消息。

6. 发明授权

US07519011B2 Frame structure for radio communications system 失效
标题翻译：无线电通信系统的帧结构
公开(公告)号：US07519011B2
公开(公告)日：2009-04-14
申请号：US10262104
申请日：2002-09-30
申请人： Paul Petrus , Christopher R. Uhlik , Mitchell D. Trott
发明人： Paul Petrus , Christopher R. Uhlik , Mitchell D. Trott
IPC分类号： H04J3/00
CPC分类号： H04B7/2659 , H04B7/0617 , H04B7/0697 , H04B7/2656
摘要： In one embodiment, the present invention includes a repeating frame for a time division radio communications system with a sequence of uplink slots each having a predetermined duration, a sequence of downlink slots, each having a predetermined duration that is greater than the duration of the uplink slots, an interburst guard time between each uplink slot, an interburst guard time between each downlink slot, and an interframe guard time after the sequence of downlink slots.
摘要翻译：在一个实施例中，本发明包括用于具有每个具有预定持续时间的上行链路时隙序列的时分无线电通信系统的重复帧，每个具有大于上行链路持续时间的预定持续时间的下行链路时隙序列每个上行链路时隙之间的突发间保护时间，每个下行链路时隙之间的突发间保护时间和下行链路时隙序列之后的帧间保护时间。

7. 发明授权

US06650714B2 Spatial processing and timing estimation using a training sequence in a radio communications system 有权
公开(公告)号：US06650714B2
公开(公告)日：2003-11-18
申请号：US09841456
申请日：2001-04-24
申请人： Mithat C. Dogan , Paul Petrus , Mitchell D. Trott
发明人： Mithat C. Dogan , Paul Petrus , Mitchell D. Trott
IPC分类号： H04L2706
CPC分类号： H04L27/18 , H04B7/0851
摘要： A method and apparatus are provided that performs spatial processing, timing estimation and frequency offset using a training sequence of a received burst. According to one aspect of the present invention, the invention includes receiving a burst having a known training sequence at a set of diversity antennas, sampling the received burst at each antenna, determining a coarse timing estimate for samples from at least one antenna, and determining a spatial weighting vector using the coarse timing estimate. The embodiment further includes applying the spatial weighting vector to the received burst samples for each antenna to form a single channel signal, determining a fine timing estimate for the single channel signal, determining a second spatial weighting vector using the fine timing estimate, applying the second spatial weighting vector to the received burst samples for each antenna to form a second single channel signal, and demodulating the second single channel signal.

8. 发明授权

US08638833B1 Method and apparatus for physical layer control communications in a wireless communications protocol 有权
标题翻译：无线通信协议中用于物理层控制通信的方法和装置
公开(公告)号：US08638833B1
公开(公告)日：2014-01-28
申请号：US12512896
申请日：2009-07-30
申请人： Sundar G. Sankaran , Tevlik Yucek , Paul Petrus , Matthew Smith
发明人： Sundar G. Sankaran , Tevlik Yucek , Paul Petrus , Matthew Smith
IPC分类号： H04B1/00
CPC分类号： H04B7/0617 , H04B7/0689
摘要： A system is disclosed with a first transceiver configured to communicate with a second transceiver. The first transceiver includes a message encoded by a spreading code and a transmitter configured to use beam forming to send the message as a beamformed transmit message to the second transceiver in one of multiple regions repeatedly targeted by the beam forming. The transceivers include a receiver configured to operating without beam forming in receiving to decode the message using the spreading code with a spreading length to compensate for the lack of beam forming. Other embodiments may include an integrated circuit with a processor operating a transmitter and a receiver of the first or the second transceiver. The integrated circuit may act as a central point, a base station and/or an access point communicating with a client, or operate the transceiver as the client, a station or as a cellular phone.
摘要翻译：公开了一种具有配置成与第二收发器进行通信的第一收发器的系统。第一收发器包括由扩展码编码的消息和被配置为使用波束形成的发射机将波形形成的发射消息作为波束形成的发射消息发送到由波束形成重复定向的多个区域中的一个区域中的第二收发器。收发机包括接收机，其被配置为在接收到无波束成形时进行操作，以使用具有扩展长度的扩展码对消息进行解码以补偿波束形成的缺失。其他实施例可以包括具有操作第一或第二收发器的发射机和接收机的处理器的集成电路。集成电路可以充当与客户端通信的中心点，基站和/或接入点，或者作为客户机，站或蜂窝电话来操作收发器。

9. 发明授权

US08446839B2 Multi-dimensional rate adaptation in a communication system 有权
标题翻译：通信系统中的多维速率调整
公开(公告)号：US08446839B2
公开(公告)日：2013-05-21
申请号：US13352433
申请日：2012-01-18
申请人： Paul Petrus
发明人： Paul Petrus
IPC分类号： H04L12/26
CPC分类号： H04W28/10
摘要： Performing wireless transmission of data over a wireless communication medium. A first data structure may be maintained which includes data rate information for transmission using a first number of streams. A second data structure may be maintained which includes data rate information for transmission using a second number of streams. Channel characteristics of the wireless communication medium may be determined. Channel characteristic information may be maintained based on the determined channel characteristics. Accordingly, a stream configuration and data rate may be determined based on the current channel characteristic information. Wireless transmission may be performed using the determined stream configuration and data rate. Determining channel characteristics, maintaining current channel characteristic information, determining a stream configuration and data rate, and performing wireless transmission may be dynamically performed a plurality of times during wireless data transmission.
摘要翻译：通过无线通信介质执行数据的无线传输。可以维护第一数据结构，其包括用于使用第一数量的流传输的数据速率信息。可以维护第二数据结构，其包括用于使用第二数量的流进行传输的数据速率信息。可以确定无线通信介质的信道特性。可以基于确定的信道特性来维持信道特征信息。因此，可以基于当前信道特性信息来确定流配置和数据速率。可以使用确定的流配置和数据速率来执行无线传输。确定信道特性，维持当前信道特征信息，确定流配置和数据速率以及执行无线传输可以在无线数据传输期间多次动态地执行。

10. 发明授权

US08290461B1 Transferring control of a common gain element in a wireless device supporting multiple protocols 失效
标题翻译：在支持多种协议的无线设备中传送公共增益元素的控制
公开(公告)号：US08290461B1
公开(公告)日：2012-10-16
申请号：US12767563
申请日：2010-04-26
申请人： Sundar G. Sankaran , Tevfik Yucek , Paul Petrus
发明人： Sundar G. Sankaran , Tevfik Yucek , Paul Petrus
IPC分类号： H04B1/06 , H04B7/00
CPC分类号： H04B1/0475 , H03G3/3078 , H04B1/0053
摘要： A communication device supporting multiple wireless protocols may share a common gain element in a coordinated manner. A first wireless protocol circuitry of the communication device may enter an active state, and in response to entering the active state, may determine whether a second wireless protocol circuitry of the communication device is active and whether the common gain element is currently shared. The gain element may be adjustable to amplify signals by an adjustable amount. The first wireless protocol circuitry may take control of the gain element from the second wireless protocol circuitry in response to determining that the second wireless protocol circuitry is active and the gain element is currently shared.
摘要翻译：支持多个无线协议的通信设备可以以协调的方式共享公共增益元素。通信设备的第一无线协议电路可以进入活动状态，并且响应于进入活动状态，可以确定通信设备的第二无线协议电路是否是活动的，以及公共增益元素当前是否被共享。增益元件可以是可调节的以将信号放大可调量。响应于确定第二无线协议电路是活动的并且增益元件当前被共享，第一无线协议电路可以控制来自第二无线协议电路的增益元件。

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