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41. 发明授权

US07164726B1 Broadcast burst using spatial diversity for a radio communications system 有权
标题翻译：使用无线电通信系统的空间分集的广播突发
公开(公告)号：US07164726B1
公开(公告)日：2007-01-16
申请号：US10187230
申请日：2002-06-28
申请人： Mitchell D. Trott
发明人： Mitchell D. Trott
IPC分类号： H04L1/02
CPC分类号： H04B7/0615 , H04J13/0048
摘要： A method and apparatus are provided that allows a single spatially directed broadcast burst to serve users throughout a base station sector. In one embodiment, the invention includes sending a first segment of a broadcast channel burst using a first set of unchanging spatial parameters from an array of antenna elements, and sending a second segment of the broadcast channel burst using a second set of different unchanging spatial parameters from the array of antenna elements.
摘要翻译：提供了允许单个空间定向的广播突发在整个基站扇区中为用户提供服务的方法和装置。在一个实施例中，本发明包括使用来自天线元件阵列的第一组不变空间参数发送广播信道突发的第一段，以及使用第二组不同的不变空间参数发送广播信道突发的第二段从阵列天线元件。

42. 发明授权

US07039016B1 Calibration of wideband radios and antennas using a narrowband channel 有权
标题翻译：使用窄带通道校准宽带无线电和天线
公开(公告)号：US07039016B1
公开(公告)日：2006-05-02
申请号：US09967127
申请日：2001-09-28
申请人： Erik D. Lindskog , Mitchell D. Trott
发明人： Erik D. Lindskog , Mitchell D. Trott
IPC分类号： H04Q7/34
CPC分类号： H01Q3/267 , H04W24/00
摘要： A method and apparatus are provided that calibrate a wideband radio communications system without causing significant interference with simultaneous users of the system. In one embodiment, the invention includes an antenna array adapted to transmit and receive radio communications signals with a plurality of other terminals the communications signals each using a particular minimum bandwidth. A transmit chain transmits a calibration signal through the antenna array to a transponder, and a receive chain receives through the antenna array a transponder signal from the transponder, the transponder signal being based on the calibration signal and having a bandwidth narrower than the minimum bandwidth. A signal processor measures characteristics of the transponder signal as received through the receive chain. These can be used to determine spatial signatures and to calibrate the transmit chain and the receive chain.
摘要翻译：提供了一种校准宽带无线电通信系统而不对系统的同时用户造成显着干扰的方法和装置。在一个实施例中，本发明包括天线阵列，其适于与多个其他终端发送和接收每个使用特定最小带宽的通信信号的无线电通信信号。发射链通过天线阵列将校准信号发送到应答器，并且接收链通过天线阵列接收来自应答器的应答器信号，应答器信号基于校准信号并且具有比最小带宽窄的带宽。信号处理器测量通过接收链接收的应答器信号的特性。这些可用于确定空间签名并校准传输链和接收链。

43. 发明授权

US06931583B2 Decoding extended error correcting codes using soft information 失效
标题翻译：使用软信息解码扩展纠错码
公开(公告)号：US06931583B2
公开(公告)日：2005-08-16
申请号：US10394793
申请日：2003-03-21
申请人： Mitchell D. Trott , Tibor Boros
发明人： Mitchell D. Trott , Tibor Boros
IPC分类号： H03M13/13 , H03M13/19 , H03M13/29 , H03M13/45 , H03M13/00 , G06F11/00
CPC分类号： H03M13/45 , H03M13/19 , H03M13/2906 , H03M13/2927
摘要： In one embodiment, the present invention can be used to correct one more error in an extended codeword encoded with a block code and a single parity check code than the block code is able to correct. In one embodiment, a communications device includes a decoder that has a soft decoder to receive an extended codeword and a strength of each bit of the extended codeword, and to produce a codeword by soft decoding the extended codeword using the received strengths, and a block decoder coupled to the soft decoder to produce a corrected codeword by block decoding the codeword using an error correcting block code.
摘要翻译：在一个实施例中，本发明可以用于纠正用块代码和单个奇偶校验码编码的扩展码字中的一个错误，而不是块代码能够校正。在一个实施例中，通信设备包括具有软解码器的解码器，用于接收扩展码字和扩展码字的每个比特的强度，并且通过使用所接收的强度对扩展码字进行软解码来产生码字，以及块解码器，其耦合到所述软解码器以通过使用纠错块码对所述码字进行块解码来产生校正码字。

44. 发明授权

US06795409B1 Cooperative polling in a wireless data communication system having smart antenna processing 失效
标题翻译：具有智能天线处理的无线数据通信系统中的合作轮询
公开(公告)号：US06795409B1
公开(公告)日：2004-09-21
申请号：US09677460
申请日：2000-09-29
申请人： Michael Youssefmir , Mitchell D. Trott , Roger Rogard
发明人： Michael Youssefmir , Mitchell D. Trott , Roger Rogard
IPC分类号： H04B700
CPC分类号： H04W16/28 , H04B7/0617 , H04B7/086 , H04W16/00 , H04W74/06
摘要： A method, communication device, and machine-readable medium. The method includes sending a first poll from a first base station having a smart antenna system to a first user terminal. The first base station receives a first uplink response signal from the first user terminal as a result of the first user terminal successfully receiving the first poll. The first base station also receives at least one other uplink response signals as a result of at least one other remote user terminal successfully receiving a second poll from a second base station. The first base station transmits downlink data to the first user terminal using a downlink smart antenna processing strategy for transmitting to the first user terminal, including mitigating interference to the first and one or more other remote communication devices from which the first base station received a first or other uplink response signal and that may be receiving during transmission of downlink data to the first user terminal. The downlink smart antenna processing strategy is using the first and other received uplink response signals. The first base station uses a first protocol with its associated user terminals and the second base stations uses a second protocol that is coordinated with the first protocol to enable the first base station to receive the first and other uplink response signals from second and one or more other remote communication devices that may be receiving during the step of transmitting downlink data to the first user terminal.
摘要翻译：一种方法，通信装置和机器可读介质。该方法包括从具有智能天线系统的第一基站向第一用户终端发送第一轮询。作为第一用户终端成功接收第一轮询的结果，第一基站从第一用户终端接收第一上行响应信号。作为至少一个其他远程用户终端从第二基站成功接收第二轮询的结果，第一基站还接收至少一个其它上行响应信号。第一基站使用用于向第一用户终端发送的下行链路智能天线处理策略向第一用户终端发送下行链路数据，包括减轻对第一和一个或多个其他远程通信设备的干扰，第一基站从该第一用户终端接收第一用户终端或其他上行链路响应信号，并且可能在向第一用户终端发送下行链路数据期间接收。下行链路智能天线处理策略正在使用第一和其他接收的上行响应信号。第一基站使用具有其相关联的用户终端的第一协议，并且第二基站使用与第一协议协调的第二协议，以使第一基站能够从第二和第一基站接收第一和其它上行响应信号在向第一用户终端发送下行链路数据的步骤期间可能正在接收的其他远程通信设备。

45. 发明授权

US06738020B1 Estimation of downlink transmission parameters in a radio communications system with an adaptive antenna array 失效
标题翻译：具有自适应天线阵列的无线电通信系统中下行链路传输参数的估计
公开(公告)号：US06738020B1
公开(公告)日：2004-05-18
申请号：US10153515
申请日：2002-05-21
申请人： Erik D. Lindskog , Mitchell D. Trott , Hafedh Trigui , Serge de la Barbosa
发明人： Erik D. Lindskog , Mitchell D. Trott , Hafedh Trigui , Serge de la Barbosa
IPC分类号： H01Q300
CPC分类号： H04B7/0634 , H01Q3/2605 , H04B7/0643 , H04W52/42
摘要： A method and apparatus are provided that allows system calibration to be incorporated into a single function that also derives transmit parameters from receive parameters in a spatial diversity system. In one embodiment, the invention includes receiving signals at an antenna array from a plurality of different locations, deriving characterizations of the spatial parameters of the received signals, receiving measurements of a plurality of different signals transmitted from the antenna array to a plurality of different locations, deriving characterizations of the spatial parameters of the transmitted signals from the received measurements, and generating a transformation function for producing transmit spatial parameters based on measurements of received signals using the receive spatial parameter characterizations and the transmit spatial parameter characterizations.
摘要翻译：提供了一种方法和装置，其允许系统校准被并入单个功能，其也从空间分集系统中的接收参数导出发射参数。在一个实施例中，本发明包括从多个不同位置在天线阵列处接收信号，导出接收信号的空间参数的表征，接收从天线阵列发送到多个不同位置的多个不同信号的测量值从接收到的测量中导出所发射信号的空间参数的特性，以及基于使用接收空间参数表征和传输空间参数表征的接收信号的测量来生成用于产生发射空间参数的变换函数。

46. 发明授权

US06570527B1 Calibration of differential frequency-dependent characteristics of a radio communications system 有权
标题翻译：校准无线电通信系统的差分频率相关特性
公开(公告)号：US06570527B1
公开(公告)日：2003-05-27
申请号：US09967258
申请日：2001-09-28
申请人： Erik D. Lindskog , Mitchell D. Trott , Adam B. Kerr
发明人： Erik D. Lindskog , Mitchell D. Trott , Adam B. Kerr
IPC分类号： G01S740
CPC分类号： H04B7/12 , H01Q3/267 , H04B7/0613 , H04B7/0837 , H04B17/12 , H04B17/21
摘要： A method and apparatus are provided that determine a frequency dependent calibration vector for a set of transmit or receive chains of a radio communications system using only differential phase and amplitude between the transmit chains and the receive chains, respectively. In one embodiment, the invention includes an antenna array adapted to transmit and receive radio communications signals with a plurality of other terminals, a transmit chain to transmit a calibration signal through the antenna array to a transponder on at least two different frequency bands, and a receive chain to receive through the antenna array a transponder signal from the transponder, the transponder signal being received on at least two different frequency bands and being based on the calibration signal. A signal processor determines a frequency dependent calibration vector based on the at least two frequency bands of the transponder signal as received through the receive chain by comparing relative characteristics for the transponder signal at a first one of the at least two frequencies to relative characteristics for the transponder signal at a second one of the at least two frequencies.
摘要翻译：提供了一种方法和装置，其分别仅使用发射链和接收链之间的差分相位和幅度来确定无线电通信系统的一组发射或接收链的频率相关校准矢量。在一个实施例中，本发明包括适于与多个其他终端发送和接收无线电通信信号的天线阵列，通过天线阵列将校准信号发射到至少两个不同频带上的应答器的发射链，以及接收链，以通过天线阵列接收来自应答器的应答器信号，应答器信号在至少两个不同频带上被接收并且基于校准信号。信号处理器基于通过接收链接收的应答器信号的至少两个频带来确定与频率相关的校准矢量，通过将在至少两个频率中的第一个频率上的应答器信号的相对特性相对于在所述至少两个频率中的第二个频率处的应答器信号。

47. 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.

48. 发明授权

US07702336B2 Channel assignment based on spatial strategies in a wireless network using adaptive antenna arrays 失效
公开(公告)号：US07702336B2
公开(公告)日：2010-04-20
申请号：US12467132
申请日：2009-05-15
申请人： Elvino S. Sousa , Athanasios A. Kasapi , Mitchell D. Trott
发明人： Elvino S. Sousa , Athanasios A. Kasapi , Mitchell D. Trott
IPC分类号： H04W72/00 , H04W4/00
CPC分类号： H04W72/08 , H04W16/28 , H04W72/046
摘要： Channels are assigned based on co-spatial constraints in wireless network using spatial division multiple access. In one example, the invention includes assigning a co-spatial constraint to each of a plurality of conventional traffic communications channels of a base station, and receiving a request from a user terminal to communicate using a traffic communication channel of the base station. The invention further includes measuring a quality parameter of the request deriving a co-spatial constraint for the user terminal, assigning the user terminal co-spatial constraint to the user terminal, and assigning the user terminal to a traffic communication channels having a channel co-spatial constraint that is no less than the user terminal co-spatial constraint and that has no more assigned radios than permitted by the channel co-spatial constraint.

49. 发明申请

US20090233614A1 Channel Assignment Based on Spatial Strategies in a Wireless Network Using Adaptive Antenna Arrays 失效
标题翻译：基于使用自适应天线阵列的无线网络中的空间策略的信道分配
公开(公告)号：US20090233614A1
公开(公告)日：2009-09-17
申请号：US12467132
申请日：2009-05-15
申请人： Elvino S. Sousa , Athanasios A. Kasapi , Mitchell D. Trott
发明人： Elvino S. Sousa , Athanasios A. Kasapi , Mitchell D. Trott
IPC分类号： H04W72/00 , H04W72/12 , H04L27/28
CPC分类号： H04W72/08 , H04W16/28 , H04W72/046
摘要： Channels are assigned based on co-spatial constraints in wireless network using spatial division multiple access. In one example, the invention includes assigning a co-spatial constraint to each of a plurality of conventional traffic communications channels of a base station, and receiving a request from a user terminal to communicate using a traffic communication channel of the base station. The invention further includes measuring a quality parameter of the request deriving a co-spatial constraint for the user terminal, assigning the user terminal co-spatial constraint to the user terminal, and assigning the user terminal to a traffic communication channels having a channel co-spatial constraint that is no less than the user terminal co-spatial constraint and that has no more assigned radios than permitted by the channel co-spatial constraint.
摘要翻译：基于使用空分多址的无线网络中的空间约束来分配信道。在一个示例中，本发明包括将共空间约束分配给基站的多个传统业务通信信道中的每一个，并且从用户终端接收使用基站的业务通信信道进行通信的请求。本发明还包括测量导出用户终端的协同空间约束的请求的质量参数，将用户终端同空间约束分配给用户终端，以及将用户终端分配给具有频道共享的业务通信信道，空间约束不小于用户终端协同空间约束，并且没有比通道协同空间约束允许的更多的分配无线电。

50. 发明授权

US07430246B1 Broadcast burst using spatial diversity for a radio communications system 有权
标题翻译：使用无线电通信系统的空间分集的广播突发
公开(公告)号：US07430246B1
公开(公告)日：2008-09-30
申请号：US11581192
申请日：2006-10-12
申请人： Mitchell D. Trott
发明人： Mitchell D. Trott
IPC分类号： H04L1/02
CPC分类号： H04B7/0615 , H04J13/0048
摘要： A method and apparatus are provided that allows a single spatially directed broadcast burst to serve users throughout a base station sector. In one embodiment, the invention includes sending a first segment of a broadcast channel burst using a first set of unchanging spatial parameters from an array of antenna elements, and sending a second segment of the broadcast channel burst using a second set of different unchanging spatial parameters from the array of antenna elements.
摘要翻译：提供了允许单个空间定向的广播突发在整个基站扇区中为用户提供服务的方法和装置。在一个实施例中，本发明包括使用来自天线元件阵列的第一组不变空间参数发送广播信道突发的第一段，以及使用第二组不同的不变空间参数发送广播信道突发的第二段从阵列天线元件。

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