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41. 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。

42. 发明授权

US07027415B1 Dynamic allocation and de-allocation of multiple communication channels for bandwidth on-demand 失效
标题翻译：针对带宽需求的多个通信信道的动态分配和去分配
公开(公告)号：US07027415B1
公开(公告)日：2006-04-11
申请号：US09813200
申请日：2001-03-20
申请人： Douglas C. Dahlby , Stephen D. Fleischer , Mitchell D. Trott , Christopher R. Uhlik
发明人： Douglas C. Dahlby , Stephen D. Fleischer , Mitchell D. Trott , Christopher R. Uhlik
IPC分类号： H04B7/212
CPC分类号： H04L41/0896 , H04W28/20
摘要： A method and apparatus are provided that dynamically allocates communication streams to provide flexible bandwidth to terminals of a communications system. In one embodiment the invention includes identifying a first terminal and a second terminal to each other for the communication of traffic over at least one of multiple streams; and dynamically allocating and de-allocating further streams based on the traffic to be carried and the traffic capacity of opened streams between the first and the second terminals. The invention may further include comparing traffic to be carried between the first terminal and the second terminal to the capacity of any open streams between the first terminal and the second terminal and allocating or de-allocating at least one stream based on the comparison. Alternatively, the invention may include comparing depths of transmit queues to the capacity of any open streams between the first terminal and the second terminal and allocating or de-allocating at least one stream based on the comparison.
摘要翻译：提供了一种方法和装置，其动态地分配通信流以向通信系统的终端提供灵活的带宽。在一个实施例中，本发明包括将多个流中的至少一个流上的业务的通信彼此识别为第一终端和第二终端; 以及基于要携带的流量和在第一和第二终端之间的开放流的业务容量来动态地分配和去分配进一步的流。本发明还可以包括将在第一终端和第二终端之间承载的流量与第一终端和第二终端之间的任何开放流的容量进行比较，并且基于该比较分配或解除分配至少一个流。或者，本发明可以包括将发射队列的深度与第一终端和第二终端之间的任何开放流的容量进行比较，并且基于该比较分配或解除分配至少一个流。

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

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。

45. 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。

46. 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.

47. 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。

48. 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。

49. 发明授权

US07406315B2 Method and apparatus for resource management in a wireless data communication system 有权
标题翻译：无线数据通信系统中资源管理的方法和装置
公开(公告)号：US07406315B2
公开(公告)日：2008-07-29
申请号：US09813386
申请日：2001-03-20
申请人： Christopher Richard Uhlik , Mitchell D. Trott , Douglas C. Dahlby , Stephen D. Fleischer
发明人： Christopher Richard Uhlik , Mitchell D. Trott , Douglas C. Dahlby , Stephen D. Fleischer
IPC分类号： H04Q7/20
CPC分类号： H04W76/25
摘要： A method and apparatus for delaying or hastening the “lifespan” of a session in response to detecting (or causing) a session renewal. A “session,” refers to a particular user terminal's right of access to one or more communication channels to exchange data with the base station (and other devices/networks coupled thereto). A session renewal refers to an event or condition that delays the lapse/expiration of the session lifespan (i.e., extends the lifespan) or conversely, an event or condition that causes hastens the lapse of the session lifespan (i.e., causes an earlier lapse of the session). In one embodiment, a session represents the period of time in which a user terminal is registered with a base station and can thus access or attempt to access one or more wireless communication channels to exchange data with the base station. Therefore, a session “lifespan” represents a length of time subsequent to which, upon lapse of the lifespan, the session terminates and a remote user terminal must re-register with a base station to establish a session and to gain access to one or more wireless communication channels in which data may be exchanged between the user terminal and the base station.
摘要翻译：响应于检测（或导致）会话更新而延迟或加速会话的“寿命”的方法和装置。 “会话”是指特定用户终端访问一个或多个通信信道以与基站（以及与其耦合的其他设备/网络）交换数据的权利。会议更新是指延迟会话生命周期的延迟/到期（即延长寿命）的事件或条件，或相反地，导致加速会话生命周期的延迟的事件或条件（即，导致更早的过去会议）。在一个实施例中，会话表示用户终端向基站注册的时间段，并且因此可以访问或尝试访问一个或多个无线通信信道以与基站交换数据。因此，会话“寿命”表示随后的时间长度，随后的寿命延长，会话终止，并且远程用户终端必须向基站重新注册以建立会话并获得访问一个或多个可以在用户终端和基站之间交换数据的无线通信信道。

50. 发明授权

US07299073B2 System and related methods for clustering multi-point communication targets 有权
标题翻译：用于聚类多点通信目标的系统和相关方法
公开(公告)号：US07299073B2
公开(公告)日：2007-11-20
申请号：US11254599
申请日：2005-10-19
申请人： Sarah Kate Wilson , Todd Henry Chauvin , Adam Bruce Kerr , Christopher Brunner , Mitchell D. Trott , Athanasios A. Kapasi , Erik David Lindskog
发明人： Sarah Kate Wilson , Todd Henry Chauvin , Adam Bruce Kerr , Christopher Brunner , Mitchell D. Trott , Athanasios A. Kapasi , Erik David Lindskog
IPC分类号： H04M1/00 , H04B1/00 , H04Q7/20
CPC分类号： H04W16/28 , H04W4/08 , H04W24/00
摘要： A system and related methods for clustering multi-point communication targets is presented. According to one aspect of the invention, a method comprising measuring one or more performance characteristics associated for each of at least a subset of a plurality of targets in a wireless communication system, and selectively building one or more clusters, each cluster including one or more target(s) and sharing a wireless communication channel, based at least in part on the performance characteristics.
摘要翻译：提出了一种用于聚类多点通信目标的系统和相关方法。根据本发明的一个方面，一种方法包括测量与无线通信系统中的多个目标的至少一个子集中的每一个相关联的一个或多个性能特征，并且选择性地建立一个或多个集群，每个集群包括一个或多个目标和共享无线通信信道，至少部分地基于性能特征。

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