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公开(公告)号：US07902936B2
公开(公告)日：2011-03-08
申请号：US12411278
申请日：2009-03-25
IPC分类号： H03L1/00
CPC分类号： H03L1/022 , H03B5/06 , H03B5/1265 , H03B2200/0066 , H03B2200/0094 , H03L3/00 , H04B2001/6908
摘要： An apparatus for generating an oscillating signal that includes a circuit to accelerate the time in which an oscillating signal reaches a defined steady-state condition from a cold start. The apparatus includes an oscillating circuit to generate an oscillating signal; a first circuit to supply a first current to the oscillating circuit; and a second circuit to supply a second current to the oscillating circuit, wherein the first and second currents are adapted to reduce the time duration for the oscillating signal to reach a defined steady-state condition. The apparatus may be useful in communication systems that use low duty cycle pulse modulation to establish one or more communications channels, whereby the apparatus begins generating an oscillating signal at approximately the beginning of the pulse and terminates the oscillating signal at approximately the end of the pulse.
摘要翻译： 一种用于产生振荡信号的装置，其包括用于加速从冷启动振荡信号达到确定的稳态状态的时间的电路。 该装置包括产生振荡信号的振荡电路; 向振荡电路提供第一电流的第一电路; 以及向振荡电路提供第二电流的第二电路，其中第一和第二电流适于减小振荡信号达到所定义的稳态条件的持续时间。 该装置在使用低占空比脉冲调制以建立一个或多个通信信道的通信系统中可能是有用的，由此该装置在大约开始的脉冲处开始产生振荡信号，并在脉冲的大致末端终止振荡信号 。
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72.发明申请METHOD AND APPARATUS FOR ADJUSTING POWER CONTROL SETPOINT IN A WIRELESS COMMUNICATION SYSTEM 审中-公开用于在无线通信系统中调整功率控制设置点的方法和装置公开(公告)号：US20100093387A1
公开(公告)日：2010-04-15
申请号：US12636497
申请日：2009-12-11
申请人： Tao Chen , Jack M. Holtzman , Fuyun Ling , Keith Saints , Nagabhushana Sindhushayana , Charles E. Wheatley, III
发明人： Tao Chen , Jack M. Holtzman , Fuyun Ling , Keith Saints , Nagabhushana Sindhushayana , Charles E. Wheatley, III
CPC分类号： H04W52/12 , H04L1/0051 , H04L1/0066 , H04L1/208 , H04W52/20 , H04W52/36
摘要： Techniques to adjust the setpoint of a power control loop in a wireless communication system. The setpoint may be adjusted based on frame status indicative of erased/good decoded frames, one or more (typically soft) metrics indicative of the confidence in the decoded results, power surplus/deficit indicative of the difference between the received signal quality and the setpoint, setpoint surplus/deficit indicative of the difference between the setpoint and a threshold Eb/Nt needed for the desired level of performance, or a combination thereof. The metrics may include re-encoded symbol error rate, re-encoded power metric, modified Yamamoto metric, minimum or average LLR among decoded bits, number of decoding iterations, and possibly others. The setpoint may be adjusted in different manners and/or by different amounts depending on the above-noted factors. The techniques may be employed for forward and/or reverse links in CDMA systems.
摘要翻译： 调整无线通信系统中功率控制回路设定值的技术。 可以基于指示擦除/良好解码帧的帧状态来调整设定点，指示解码结果的置信度的一个或多个（通常为软）度量，指示接收信号质量与设定点之间的差异的功率余量/ ，表示设定值与所需性能水平所需的阈值Eb / Nt之间的差异的设定值剩余/缺失，或其组合。 度量可以包括重新编码的符号错误率，重新编码的功率度量，修改的Yamamoto度量，解码比特中的最小或平均LLR，解码迭代次数，以及可能的其他值。 可以根据上述因素以不同的方式和/或不同的量调节设定点。 这些技术可以用于CDMA系统中的前向和/或反向链路。
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73.发明授权Method and apparatus for time-aligning transmissions from multiple base stations in a CDMA communication system 失效用于在CDMA通信系统中对来自多个基站的传输进行时间调整的方法和装置公开(公告)号：US07433321B2
公开(公告)日：2008-10-07
申请号：US10414578
申请日：2003-04-15
IPC分类号： H04J3/06
CPC分类号： H04W56/002 , H04B7/2668 , H04B2201/70702 , H04W56/001 , H04W56/0015 , H04W56/0045 , H04W92/20
摘要： Schemes to time-align transmissions from multiple base stations to a terminal. To achieve time-alignment, differences between the arrival times of transmissions from the base stations, as observed at the terminal, are determined and provided to the system and used to adjust the timing at the base stations such that terminal-specific radio frames arrive at the terminal within a particular time window. In one scheme, a time difference between two base stations is partitioned into a frame-level time difference and a chip-level time difference. Whenever requested to perform and report time difference measurements, the terminal measures the chip-level timing for each candidate base station relative to a reference base station. Additionally, the terminal also measures the frame-level timing and includes this information in the time difference measurement only if required. Otherwise, the terminal sets the frame-level part to a predetermined value (e.g., zero).
摘要翻译： 将来自多个基站的传输时间对齐到终端的方案。 为了实现时间对准，确定在终端观察到的来自基站的传输的到达时间之间的差异，并将其提供给系统，并用于调整基站处的定时，使得终端专用无线帧到达 终端在特定的时间窗口内。 在一个方案中，两个基站之间的时差被划分为帧级时间差和码片级时间差。 无论何时请求执行和报告时差测量，终端测量每个候选基站相对于参考基站的芯片级定时。 此外，终端还测量帧级定时，并且仅在需要时在时差测量中包括该信息。 否则，终端将帧级部分设置为预定值（例如，零）。
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74.发明授权Method and apparatus for adjusting power control setpoint in a wireless communication system 失效用于在无线通信系统中调整功率控制设定点的方法和装置公开(公告)号：US06763244B2
公开(公告)日：2004-07-13
申请号：US09810685
申请日：2001-03-15
申请人： Tao Chen , Jack M. Holtzman , Fuyun Ling , Keith Saints , Nagabhushana Sindhushayana , Charles E. Wheatley, III
发明人： Tao Chen , Jack M. Holtzman , Fuyun Ling , Keith Saints , Nagabhushana Sindhushayana , Charles E. Wheatley, III
IPC分类号： H04B116
CPC分类号： H04W52/12 , H04L1/0051 , H04L1/0066 , H04L1/208 , H04W52/20 , H04W52/36
摘要： Techniques to adjust the setpoint of a power control loop in a wireless communication system. The setpoint may be adjusted based on frame status indicative of erased/good decoded frames, one or more (typically soft) metrics indicative of the confidence in the decoded results, power surplus/deficit indicative of the difference between the received signal quality and the setpoint, setpoint surplus/deficit indicative of the difference between the setpoint and a threshold Eb/Nt needed for the desired level of performance, or a combination thereof. The metrics may include re-encoded symbol error rate, re-encoded power metric, modified Yamamoto metric, minimum or average LLR among decoded bits, number of decoding iterations, and possibly others. The setpoint may be adjusted in different manners and/or by different amounts depending on the above-noted factors. The techniques may be employed for forward and/or reverse links in CDMA systems.
摘要翻译： 调整无线通信系统中功率控制回路设定值的技术。 可以基于指示擦除/良好解码帧的帧状态来调整设定点，指示解码结果的置信度的一个或多个（通常为软）度量，指示接收信号质量与设定点之间的差异的功率余量/ ，表示设定值与所需性能水平所需的阈值Eb / Nt之间的差异的设定值剩余/缺失，或其组合。 度量可以包括重新编码的符号错误率，重新编码的功率度量，修改的Yamamoto度量，解码比特中的最小或平均LLR，解码迭代次数，以及可能的其他值。 可以根据上述因素以不同的方式和/或不同的量调节设定点。 这些技术可以用于CDMA系统中的前向和/或反向链路。
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公开(公告)号：US5722061A
公开(公告)日：1998-02-24
申请号：US723491
申请日：1996-09-30
IPC分类号： H04B1/06 , H03G1/00 , H03G3/30 , H04B20060101 , H04B1/10 , H04B1/16 , H04B1/18 , H04B1/40 , H04B3/06 , H04B7/005 , H04B7/26 , H04B15/00 , H03G3/20
CPC分类号： H03F3/72 , H03G1/0088 , H03G3/3052 , H03G3/3068 , H04B1/109 , H04B1/70755 , H04B1/7097 , H04W52/52 , H03F2203/7239 , Y02B60/50
摘要： A method for adjusting the gain of a receive circuit, thereby improving a receiver's immunity to interference. The circuit has an LNA which amplifies the received signal. The receive signal power is controlled by enabling or disabling the LNA in response to the measured received signal power. The received power level is periodically compared to a threshold. When the received power level is greater than the threshold, the LNA is disabled. The LNA is re-enabled when the received power level is less than the threshold, and there are no significant intermodulation components detected. The intermodulation components are detected by briefly enabling the LNA and detecting the resultant change in the measured signal power. If the detected change is more than a predetermined amount, then there are significant intermodulation components present, and the LNA is not re-enabled. Otherwise, there are not significant intermodulation components present, and the LNA is re-enabled.
摘要翻译： 一种用于调整接收电路的增益的方法，从而提高接收机对干扰的抗扰度。 该电路具有放大接收信号的LNA。 通过响应于测量的接收信号功率启用或禁用LNA来控制接收信号功率。 接收功率电平定期与阈值进行比较。 当接收到的功率级别大于阈值时，LNA被禁用。 当接收功率电平小于阈值时，LNA被重新使能，并且没有检测到显着的互调分量。 通过短暂启用LNA并检测所测量的信号功率的结果变化来检测互调分量。 如果检测到的改变超过预定量，则存在显着的互调分量，并且LNA不被重新启用。 否则，不存在显着的互调组件，并且LNA被重新启用。
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公开(公告)号：US5533011A
公开(公告)日：1996-07-02
申请号：US370769
申请日：1994-12-23
CPC分类号： H04B7/0671 , H01Q21/29 , H04B7/0491 , H04B7/0845 , H04B7/0894 , H04B7/2628 , H04B7/2643 , H04W88/085 , H04B7/022 , H04W36/18
摘要： A distributed antenna system is utilized in a system for providing multipath signals which facilitate signal diversity for enhanced system performance. Each node of the antenna comprises more than one antenna. Each antenna at a common node provides a path having a different delay to the base station.
摘要翻译： 在用于提供多径信号的系统中使用分布式天线系统，其便于信号分集以增强系统性能。 天线的每个节点包括多于一个的天线。 公共节点处的每个天线提供与基站具有不同延迟的路径。
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公开(公告)号：US5513176A
公开(公告)日：1996-04-30
申请号：US112392
申请日：1993-08-27
IPC分类号： H04B7/04 , H01Q21/29 , H04B7/02 , H04B7/06 , H04B7/08 , H04B7/26 , H04W36/18 , H04W88/08 , H04Q7/36
CPC分类号： H04B7/0671 , H01Q21/29 , H04B7/0491 , H04B7/0845 , H04B7/0894 , H04B7/2628 , H04B7/2643 , H04W88/085 , H04B7/022 , H04W36/18
摘要： A distributed antenna system is utilized in a system for providing multipath signals which facilitate signal diversity for enhanced system performance. Each node of the antenna comprises more than one antenna. Each antenna at a common node provides a path having a different delay to the base station.
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公开(公告)号：US4684903A
公开(公告)日：1987-08-04
申请号：US623291
申请日：1984-04-30
IPC分类号： H03B29/00
CPC分类号： H03B29/00
摘要： Method and apparatus for varying the output signal frequency of a controlled oscillator. The oscillator control signal is formed by filtering the output of a random number generator in such a way that the oscillatory output signal has a random frequency walk phase characteristic having predetermined, controlled characteristics.
摘要翻译： 用于改变受控振荡器的输出信号频率的方法和装置。 振荡器控制信号通过对随机数发生器的输出进行滤波而形成，使得振荡输出信号具有具有预定的受控特性的随机频率走相相位特性。
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公开(公告)号：US08270927B2
公开(公告)日：2012-09-18
申请号：US10983051
申请日：2004-11-04
IPC分类号： H04B1/10
CPC分类号： H04B1/1036 , H04B1/525 , H04B1/7097
摘要： Systems and techniques for adaptive interference filtering in a communications device are disclosed. The communications device may include a transmitter, a receiver, a duplexer coupled to the transmitter and the receiver, and an adaptive filter disposed between the duplexer and the receiver. A processor may be configured to monitor cross modulation in the receiver between transmitter leakage through the duplexer and a jammer, and adapt the filter to vary its transmit signal rejection as a function of the cross modulation.
摘要翻译： 公开了一种用于通信设备中的自适应干扰滤波的系统和技术。 通信设备可以包括发射机，接收机，耦合到发射机和接收机的双工器，以及布置在双工器和接收机之间的自适应滤波器。 处理器可以被配置为在发射机通过双工器和干扰器之间的泄漏中监测接收机中的交叉调制，并且调整滤波器以改变其作为交叉调制的函数的发射信号抑制。
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公开(公告)号：US20120050015A1
公开(公告)日：2012-03-01
申请号：US13039142
申请日：2011-03-02
IPC分类号： G06K7/01 , H05K9/00 , G06K19/073
CPC分类号： H04B5/005 , G06K7/10158 , G06K19/0715 , H02J5/005 , H02J7/025 , H02J50/12 , H02J50/20 , H04B5/0031 , H04B5/0037 , H04B5/0087 , H05K9/0071
摘要： Exemplary embodiments are directed to a device include a parasitic coil for protection of the device. A device may include a first circuit configured to receive a first transmitted signal at an operational frequency. The device may also include a second circuit a second circuit configured to generate a field that opposes at least one of an undesirable portion of a wireless power field of the first transmitted signal and a portion of another wireless power field proximate the first circuit, the another wireless power field generated by a second transmitted signal at a non-operational frequency of the first circuit.
摘要翻译： 示例性实施例涉及一种装置，包括用于保护装置的寄生线圈。 设备可以包括被配置为以工作频率接收第一发射信号的第一电路。 该设备还可以包括第二电路，第二电路被配置为生成与第一发射信号的无线功率场的不期望部分和接近第一电路的另一无线功率场的一部分中的至少一个相对的场，另一个 由在第一电路的非操作频率的第二发射信号产生的无线功率场。
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