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41.发明授权Methods and systems for providing enhanced position location in wireless communications 有权用于在无线通信中提供增强的位置定位的方法和系统公开(公告)号：US07876265B2
公开(公告)日：2011-01-25
申请号：US12361273
申请日：2009-01-28
申请人： Peter John Black , Matthew S. Grob
发明人： Peter John Black , Matthew S. Grob
CPC分类号： H04W72/0446 , G01S5/0221 , H04W48/08 , H04W48/14 , H04W64/00
摘要： Embodiments disclosed herein relate to methods and systems for providing improved position-location (e.g., time-of-arrival) measurement and enhanced position location in wireless communication systems. In an embodiment, an access point may replace information (e.g., data) transmission by a “known” transmission (or “reference transmission”) at a predetermined time known to access terminals in the corresponding sectors. The access terminals may use the received reference transmission to perform a position-location measurement, and report back the measured information. The access point may also send a reference transmission on demand, e.g., in response to a request from an access terminal in need for a location-based service.
摘要翻译： 本文公开的实施例涉及用于在无线通信系统中提供改进的位置定位（例如到达时间）测量和增强的位置定位的方法和系统。 在一个实施例中，接入点可以在对已知的传输（或“参考传输”）在对应扇区中的接入终端已知的预定时间内替换信息（例如，数据）传输。 接入终端可以使用接收到的参考传输来执行位置测量，并且返回所测量的信息。 接入点还可以例如响应于需要基于位置的服务的接入终端的请求，按需发送参考传输。
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42.发明授权公开(公告)号：US08737911B2
公开(公告)日：2014-05-27
申请号：US12609698
申请日：2009-10-30
IPC分类号： H04B3/36
CPC分类号： H04B7/15535 , H04B7/15585 , H04L27/2607 , H04L27/2613
摘要： In one embodiment, a method for providing echo cancellation in a wireless repeater includes: adding the pilot signal to a transmit signal; receiving a receive signal being the sum of a remote signal, a feedback pilot signal and a feedback transmit signal; cancelling the feedback transmit signal from the receive signal using a currently available feedback channel estimate and generating a first echo cancelled signal; generating an updated feedback channel estimate using the first echo cancelled signal and the pilot signal as a reference signal; cancelling the feedback transmit signal and the feedback pilot signal from the receive signal using the updated feedback channel estimate and generating a second echo cancelled signal; and amplifying the second echo cancelled signal as the transmit signal. In another embodiment, the feedback pilot signal is cancelled from the first echo cancelled signal using the updated feedback channel estimate to generate the second echo cancelled signal.
摘要翻译： 在一个实施例中，一种用于在无线中继器中提供回波消除的方法包括：将导频信号添加到发射信号; 接收作为远程信号，反馈导频信号和反馈发送信号之和的接收信号; 使用当前可用的反馈信道估计从所述接收信号中消除所述反馈发射信号并产生第一回波消除信号; 使用所述第一回波消除信号和所述导频信号作为参考信号产生更新的反馈信道估计; 使用更新的反馈信道估计从接收信号中消除反馈发射信号和反馈导频信号，并产生第二回波消除信号; 并且将第二回波消除信号放大为发送信号。 在另一个实施例中，使用更新的反馈信道估计从第一回波消除信号中消除反馈导频信号以产生第二回波消除信号。
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43.发明授权Methods and systems for server selection during feedback channel impairment in wireless communications 有权无线通信中反馈信道损伤时服务器选择的方法和系统公开(公告)号：US08406774B2
公开(公告)日：2013-03-26
申请号：US11506108
申请日：2006-08-16
IPC分类号： H04W40/00
摘要： Embodiments disclosed herein relate to methods and systems for server selection during feedback channel impairment in wireless communications. The feedback channel may be provided by a data rate control (DRC) channel, transmitted from an access terminal to an access network relating the selected serving sector (DRC cover) and the desired data rate (DRC rate) for transmission on forward link. During DRC cover erasure (e.g., due to channel impairment), a data source control (DSC) channel may be used as complimentary information to assist the DRC erasure mapping decision at the access network.
摘要翻译： 本文公开的实施例涉及在无线通信中的反馈信道损伤期间服务器选择的方法和系统。 反馈信道可以由数据速率控制（DRC）信道提供，数据速率控制（DRC）信道从接入终端发送到与所选择的服务扇区（DRC覆盖）相关联的接入网络和用于在前向链路上传输的期望数据速率（DRC速率）。 在DRC覆盖擦除期间（例如，由于信道损害），可以使用数据源控制（DSC）信道作为补充信息来辅助接入网络处的DRC擦除映射决定。
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公开(公告)号：US08010113B2
公开(公告)日：2011-08-30
申请号：US12543078
申请日：2009-08-18
申请人： Peter John Black
发明人： Peter John Black
IPC分类号： H04Q7/20
摘要： A communication system including a closed loop power control system. Prior to allowing a handoff to a new base station, the subscriber station verifies that its reverse link signal is being received by the destination base station with sufficient energy. The determination is made based on the received reverse link power control commands from the base station. Moreover, a handoff may be forced when the base station providing the best forward link signal in not receiving the reverse link signal from the subscriber station with sufficient energy.
摘要翻译： 一种包括闭环功率控制系统的通信系统。 在允许切换到新的基站之前，用户站验证其反向链路信号正在被目的地基站以足够的能量接收。 基于从基站接收到的反向链路功率控制命令进行确定。 此外，当提供最佳前向链路信号的基站没有以足够的能量从用户站接收到反向链路信号时，可能迫使切换。
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45.发明授权Method and apparatus for an adaptive de-jitter buffer in a wireless communication system 有权用于无线通信系统中的自适应去抖动缓冲器的方法和装置公开(公告)号：US07826441B2
公开(公告)日：2010-11-02
申请号：US11216799
申请日：2005-08-30
IPC分类号： H04L12/66
CPC分类号： H04L12/66 , G10L19/005 , H04J3/0632 , H04L29/06027 , H04L47/10 , H04L47/2416 , H04L47/28 , H04L47/29 , H04L47/30 , H04L49/90 , H04L49/9094 , H04L65/80
摘要： Adaptive De-Jitter Buffer for Voice over IP (VoIP) for packet switch communications. The de-jitter buffer methods and apparatus presented avoid playback of underflows while balancing end-to-end delay. In one example, the de-jitter buffer is recalculated at the beginning of each talkspurt. In another example, talkspurt packets are compressed upon receipt of all remaining packets.
摘要翻译： 用于分组交换通信的用于IP语音（VoIP）的自适应去抖动缓冲器。 所提供的去抖动缓冲器方法和装置避免了下溢的重放，同时平衡了端到端延迟。 在一个示例中，在每个话音突峰的开始处重新计算去抖动缓冲器。 在另一个示例中，在接收到所有剩余的分组时，话音分组被压缩。
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46.发明授权Method and apparatus for processing packetized data in a wireless communication system 有权一种在无线通信系统中处理分组化数据的方法和装置公开(公告)号：US07817677B2
公开(公告)日：2010-10-19
申请号：US11216601
申请日：2005-08-30
IPC分类号： H04J3/06
CPC分类号： H04L12/66 , G10L19/005 , H04J3/0632 , H04L29/06027 , H04L47/10 , H04L47/2416 , H04L47/28 , H04L47/29 , H04L47/30 , H04L49/90 , H04L49/9094 , H04L65/80
摘要： Adaptive De-Jitter Buffer for Voice over IP (VoIP) for packet switch communications. The de-jitter buffer methods and apparatus presented avoid playback of underflows while balancing end-to-end delay. In one example, the de-jitter buffer is recalculated at the beginning of each talkspurt. In another example, talkspurt packets are compressed upon receipt of all remaining packets.
摘要翻译： 用于分组交换通信的用于IP语音（VoIP）的自适应去抖动缓冲器。 所提供的去抖动缓冲器方法和装置避免了下溢的重放，同时平衡了端到端延迟。 在一个示例中，在每个话音突峰的开始处重新计算去抖动缓冲器。 在另一个示例中，在接收到所有剩余的分组时，话音分组被压缩。
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公开(公告)号：US20090252201A1
公开(公告)日：2009-10-08
申请号：US12484572
申请日：2009-06-15
CPC分类号： H04B1/7107 , H04B1/71075 , H04B2201/70701 , H04L25/0224 , H04W52/12
摘要： Techniques for generalized pilot interference cancellation in a communications receiver. In an exemplary embodiment, a residual pilot is cancelled from a post-traffic cancellation signal following initial first-pass pilot cancellation. Residual pilot cancellation is achieved by adding the first-pass cancelled pilot as earlier stored in memory back to the post-traffic cancellation signal, and pilot filtering the resulting signal to generate an improved pilot interference estimate. In an alternative exemplary embodiment, an arbitrary number of iterations may be applied to generate the pilot interference estimate by successively storing each generated pilot interference estimate in memory.
摘要翻译： 通信接收机中广义导频干扰消除技术。 在示例性实施例中，在初次首次通过导频消除之后，从后业务消除信号中消除残余导频。 剩余导频消除是通过将先前存储在存储器中的首次通过取消的导频返回到业务后消除信号来实现的，并对所得到的信号进行导频过滤以产生改进的导频干扰估计。 在替代示例性实施例中，可以应用任意数量的迭代来通过在存储器中连续地存储每个产生的导频干扰估计来生成导频干扰估计。
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公开(公告)号：US09124344B2
公开(公告)日：2015-09-01
申请号：US12874156
申请日：2010-09-01
CPC分类号： H04B7/2687 , H04B1/707 , H04B2201/70701 , H04J3/0644 , H04W52/325
摘要： A pilot reference transmission scheme well suited for high data rate wireless communication systems is disclosed. To maximize the amount of interference from transmissions from neighboring transmission sources (e.g., access points or base stations) during the pilot interval, and hence minimize the amount of interference from non-transmitting sources during the data intervals, the pilot references are transmitted in bursts at predetermined time intervals, and the pilot bursts from the access points are synchronized. This results in maximum interference contributions from non-transmitting neighboring access points, facilitating reliable estimation of worst case carrier-to-interference (C/I), and further allows the receiving devices (e.g., access terminals) to easily recognize the bursts as pilot reference. In one embodiment, each access point transmits the pilot bursts at or near its maximum transmit power level and no user-specific data is transmitted during the pilot bursts.
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49.发明授权Methods and systems for providing enhanced position location in wireless communications 有权用于在无线通信中提供增强的位置定位的方法和系统公开(公告)号：US08773308B2
公开(公告)日：2014-07-08
申请号：US13024230
申请日：2011-02-09
CPC分类号： H04W72/0446 , G01S5/0221 , H04W48/08 , H04W48/14 , H04W64/00
摘要： Embodiments disclosed herein relate to methods and systems for providing improved position-location (e.g., time-of-arrival) measurement and enhanced position location in wireless communication systems. In an embodiment, an access point may replace information (e.g., data) transmission by a “known” transmission (or “reference transmission”) at a predetermined time known to access terminals in the corresponding sectors. The access terminals may use the received reference transmission to perform a position-location measurement, and report back the measured information. The access point may also send a reference transmission on demand, e.g., in response to a request from an access terminal in need for a location-based service.
摘要翻译： 本文公开的实施例涉及用于在无线通信系统中提供改进的位置定位（例如到达时间）测量和增强的位置定位的方法和系统。 在一个实施例中，接入点可以在对已知的传输（或“参考传输”）在对应扇区中的接入终端已知的预定时间内替换信息（例如，数据）传输。 接入终端可以使用接收到的参考传输来执行位置测量，并且返回所测量的信息。 接入点还可以例如响应于需要基于位置的服务的接入终端的请求，按需发送参考传输。
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公开(公告)号：US08514988B2
公开(公告)日：2013-08-20
申请号：US12113903
申请日：2008-05-01
申请人： Qiang Wu , Wanlun Zhao , Peter John Black
发明人： Qiang Wu , Wanlun Zhao , Peter John Black
IPC分类号： H04B1/00
CPC分类号： H04W4/02 , H03M1/185 , H04L5/0023 , H04L5/0048 , H04L27/261 , H04L27/2613 , H04W16/02 , H04W64/00
摘要： Briefly, in accordance with one embodiment, a method of adjusting for digital automatic gain control (DAGC) quantization error in a mobile station is as follows. A first DAGC value is stored before reception of one or more enhanced pilot signals. A second DAGC value is computed during reception of the one or more enhanced pilot signal. The first DAGC value is restored after reception of the one or more enhanced pilot signals is over. An advantage associated with this particular embodiment may include reduction in quantization error for digital automatic gain control.
摘要翻译： 简而言之，根据一个实施例，移动台中的数字自动增益控制（DAGC）量化误差的调整方法如下。 在接收到一个或多个增强导频信号之前存储第一DAGC值。 在接收一个或多个增强导频信号期间计算第二DAGC值。 在接收到一个或多个增强导频信号结束之后恢复第一个DAGC值。 与该特定实施例相关联的优点可以包括减少用于数字自动增益控制的量化误差。
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