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1. 发明授权

US5617060A Method and apparatus for automatic gain control and DC offset cancellation in quadrature receiver 失效
标题翻译：正交接收机中自动增益控制和直流偏移消除的方法和装置
公开(公告)号：US5617060A
公开(公告)日：1997-04-01
申请号：US423332
申请日：1995-04-13
申请人： Nathaniel B. Wilson , Peter J. Black , Paul E. Peterzell
发明人： Nathaniel B. Wilson , Peter J. Black , Paul E. Peterzell
IPC分类号： H03G3/20 , H03D3/00 , H03D3/24 , H03D7/16 , H03G3/30 , H04B1/30 , H04L27/14 , H04L27/22
CPC分类号： H03D7/165 , H03D3/002 , H03D3/008 , H03G3/3052 , H03G3/3089 , H03D2200/0025 , H03D2200/0047 , H03D2200/005 , H03D2200/0052
摘要： An automatic gain control (AGC) and D.C. offset correction method and apparatus for controlling signal power of a received RF signal within a dual mode quadrature receiver is disclosed herein. In a preferred implementation the automatic gain control apparatus may be adjusted to provide a desired control response to various fading characteristics of a received FM, FSK, GMSK, QPSK, or BPSK signal. The AGC apparatus includes an adjustable gain amplifier having an input port for receiving an input signal, a control port for receiving a gain control signal, and an output port for providing an output signal. A quadrature downconverter coupled to the output port serves to translate the frequency of the output signal to a baseband frequency, thereby producing baseband signals. In a preferred implementation the downconverter is operative to map the carrier frequency of the output signal to a baseband frequency offset by a predetermined margin from D.C. Two high gain active lowpass filters provide out-of-band signal rejection for the baseband signals. A D.C. feedthrough suppression loop, disposed to receive said baseband signal, suppresses D.C. offsets produced by the downconverter and lowpass filters, hence providing a compensated baseband signal. The AGC apparatus is further disposed to generate a received power signal based on the power of the output signal. A saturating integrator compares the received power signal to a reference signal and produces the gain control signal by integrating or by refraining from integration based on values of the reference, received power signal, and gain control signals, thereby extending the usable dynamic range of the receiver for FM mode.
摘要翻译：本文公开了一种用于控制双模正交接收机内的接收RF信号的信号功率的自动增益控制（AGC）和直流偏移校正方法和装置。在优选实施例中，可以调整自动增益控制装置以对接收的FM，FSK，GMSK，QPSK或BPSK信号的各种衰落特性提供期望的控制响应。 AGC装置包括具有用于接收输入信号的输入端口的可调节增益放大器，用于接收增益控制信号的控制端口和用于提供输出信号的输出端口。耦合到输出端口的正交下变频器用于将输出信号的频率转换为基带频率，从而产生基带信号。在优选实施例中，下变频器可操作以将输出信号的载波频率从基准频率偏移映射到来自直流的预定余量。两个高增益有源低通滤波器为基带信号提供带外信号抑制。布置成接收所述基带信号的直流抑制回路抑制由下变频器和低通滤波器产生的直流偏移，从而提供经补偿的基带信号。 AGC设备还被设置为基于输出信号的功率产生接收功率信号。饱和积分器将接收到的功率信号与参考信号进行比较，并且通过基于参考值，接收功率信号和增益控制信号的值积分或避免积分来产生增益控制信号，从而延长接收机的可用动态范围用于FM模式。

2. 发明授权

US5469115A Method and apparatus for automatic gain control in a digital receiver 失效
标题翻译：数字接收机中自动增益控制的方法和装置
公开(公告)号：US5469115A
公开(公告)日：1995-11-21
申请号：US235811
申请日：1994-04-28
申请人： Paul E. Peterzell , Nathaniel B. Wilson , Peter J. Black
发明人： Paul E. Peterzell , Nathaniel B. Wilson , Peter J. Black
IPC分类号： H03G3/20 , H03G3/30 , H04B1/16 , H04B1/18 , H04L27/22 , H04L27/38
CPC分类号： H03G3/3078 , H03G3/3089
摘要： An automatic gain control (AGC) apparatus for a digital receiver is disclosed herein. The AGC apparatus includes an adjustable gain amplifier having an input port for receiving an input signal, a control port for receiving a gain control signal, and an output port for providing an output signal. The AGC apparatus further includes a measurement circuit for generating a received power signal based on the power of the output signal. A saturating integrator compares the received power signal to a reference signal and generates an gain control signal in response to a result of the comparison. The saturating integrator includes a decision circuit for enabling integration based on values of the received power signal, the reference signal, and the gain control signal. In a preferred implementation the utilization of an input limiter in conjunction with an analog to digital converter enables accommodation of an increased input signal dynamic range. Accordingly, the AGC apparatus is capable of being used in digital demodulation of FM signals. The AGC apparatus may also be employed within a dual mode receiver designed to process both FM and code division multiple access (CDMA) input signals.
摘要翻译：本文公开了一种用于数字接收机的自动增益控制（AGC）装置。 AGC装置包括具有用于接收输入信号的输入端口的可调节增益放大器，用于接收增益控制信号的控制端口和用于提供输出信号的输出端口。 AGC装置还包括用于基于输出信号的功率产生接收功率信号的测量电路。饱和积分器将接收到的功率信号与参考信号进行比较，并且响应于比较的结果而生成增益控制信号。饱和积分器包括基于接收功率信号，参考信号和增益控制信号的值来实现集成的判定电路。在优选实施例中，输入限幅器与模数转换器结合使用能够调节增加的输入信号动态范围。因此，AGC装置能够用于FM信号的数字解调。 AGC设备还可以被用于设计成处理FM和码分多址（CDMA）输入信号的双模式接收机。

3. 发明授权

US5757858A Dual-mode digital FM communication system 失效
标题翻译：双模数字FM通信系统
公开(公告)号：US5757858A
公开(公告)日：1998-05-26
申请号：US779601
申请日：1997-01-07
申请人： Peter J. Black , Nathaniel B. Wilson
发明人： Peter J. Black , Nathaniel B. Wilson
IPC分类号： H04L27/10 , H04B1/04 , H04B1/40 , H04B7/26 , H04L25/49 , H04L27/14 , H04L27/233 , H04W4/18 , H04W88/06 , H04B1/16 , H04J13/02
CPC分类号： H04B1/406 , H04L25/4904 , H04L27/142 , H04L27/2337 , H04B2201/70707 , H04W4/18 , H04W88/06
摘要： A dual-mode digital communication system for communicating an information signal during operation in frequency-modulated (FM) and multiple-access modes is disclosed herein. The digital communication system includes a dual-mode transmitter for transmitting the information signal using an FM communication signal during FM mode operation, and for transmitting the information signal using a multiple-access communication signal during multiple-access mode operation. The communication system further includes a dual-mode receiver for receiving the FM communication signal during FM mode operation, and for receiving the multiple-access communication signal during multiple-access mode operation. Incorporated within the dual-mode receiver is a digital demodulator for recovering the information signal from the received FM signal during operation in the FM mode, and for recovering the information signal from the received multiple-access signal during multiple-access mode operation. In a preferred implementation the dual-mode transmitter is disposed to convert a first sequence of binary data within the information signal into a sampled modulation waveform, and to provide the FM communication signal by modulating a carrier signal based at least in part on the sampled modulation waveform. The dual-mode transmitter may also be configured to multiplex a second sequence of wideband message data with the sampled modulation waveform so as to form a composite FM modulation waveform.
摘要翻译：这里公开了一种用于在频率调制（FM）和多接入模式中的操作期间传送信息信号的双模式数字通信系统。数字通信系统包括一个双模发射机，用于在FM模式操作期间使用FM通信信号发送信息信号，并且在多址模式操作期间使用多址通信信号发送信息信号。通信系统还包括一个双模式接收器，用于在FM模式操作期间接收FM通信信号，并且用于在多址模式操作期间接收多址通信信号。在双模式接收机内并入的是数字解调器，用于在FM模式下操作期间从接收到的FM信号中恢复信息信号，并且用于在多址模式操作期间从所接收的多址信号中恢复信息信号。在优选实施例中，双模式发射器被设置成将信息信号内的二进制数据的第一序列转换成采样的调制波形，并且至少部分地基于采样的调制来调制载波信号来提供FM通信信号波形双模发射机还可以被配置为将第二序列宽带消息数据与采样的调制波形进行复用，以形成复合FM调制波形。

4. 发明授权

US09408165B2 Increasing capacity in wireless communications 有权
标题翻译：增加无线通信的容量
公开(公告)号：US09408165B2
公开(公告)日：2016-08-02
申请号：US12424019
申请日：2009-04-15
申请人： Yu-Cheun Jou , Peter J. Black , Rashid Ahmed A. Attar
发明人： Yu-Cheun Jou , Peter J. Black , Rashid Ahmed A. Attar
IPC分类号： H04L12/26 , H04W52/44 , H04L1/18 , H04W52/58 , H04L1/16 , H04L1/00
CPC分类号： H04W52/44 , H04B2201/709709 , H04L1/0002 , H04L1/0025 , H04L1/0027 , H04L1/0029 , H04L1/0045 , H04L1/1607 , H04L1/1854 , H04L1/1887 , H04L2001/0092 , H04W52/58
摘要： Techniques to increase capacity in a wireless communications system. In an aspect, systematic non-transmission, or “blanking,” of minimal-rate frames transmitted in a communications system is provided. In an exemplary embodiment, eighth rate frames in a cdma2000 voice communications system are systematically substituted with null-rate frames carrying zero traffic bits. Provisions are nevertheless made for the transmission of certain designated as “critical” by, e.g., a vocoder. The receiver detects the presence of null rate or non-null rate transmissions and processes the received frames accordingly, including updating an outer loop power control only in response to non-null rate frames. Further techniques for changing the pilot transmission gating pattern to assist the receiver in detecting null rate frames are provided. In another aspect, early termination of a signal transmission over a wireless communications link is provided. In an exemplary embodiment, a base station (BS) transmits power control groups (PCG's) for a frame over a forward link (FL) to a mobile station (MS) until accurate reception of the frame is acknowledged by the MS over a reverse link (RL), possibly before all PCG's of the frame are received over the FL. Possible ACK signaling methods are defined for channels associated with a cdma2000 wireless communications system. In another exemplary embodiment, techniques for reverse link early termination are also provided.
摘要翻译：提高无线通信系统容量的技术。在一方面，提供了在通信系统中传输的最小速率帧的系统非传输或“消隐”。在示例性实施例中，cdma2000语音通信系统中的第八速率帧被系统地替换为带有零业务位的零速率帧。然而，对于由例如声码器指定为“关键”的某些设备进行了规定。接收机检测到零速率或非零速率传输的存在并相应地处理接收到的帧，包括仅响应于非空速率帧来更新外部环路功率控制。提供了用于改变导频传输门控模式以辅助接收机检测零速率帧的其它技术。在另一方面，提供了通过无线通信链路的信号传输的提前终止。在示例性实施例中，基站（BS）通过前向链路（FL）向移动站（MS）发送用于帧的功率控制组（PCG），直到MS通过反向链路确认帧的准确接收（RL），可能在帧的所有PCG之前都被接收到FL。针对与cdma2000无线通信系统相关的通道定义了可能的ACK信令方法。在另一示例性实施例中，还提供了用于反向链路提前终止的技术。

5. 发明授权

US09118387B2 Pilot reference transmission for a wireless communication system 有权
标题翻译：无线通信系统的导频参考传输
公开(公告)号：US09118387B2
公开(公告)日：2015-08-25
申请号：US11858840
申请日：2007-09-20
申请人： Roberto Padovani , Peter J. Black , Nagabhushana T. Sindhushayana
发明人： Roberto Padovani , Peter J. Black , Nagabhushana T. Sindhushayana
IPC分类号： H04L12/28 , H04B7/26 , H04B1/707 , H04W52/32 , H04J1/16 , H04J3/06
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.
摘要翻译：公开了一种非常适合高数据速率无线通信系统的导频参考传输方案。为了在导频间隔期间使来自相邻传输源（例如，接入点或基站）的传输的干扰量最大化，并且因此在数据间隔期间最小化来自非发射源的干扰量，导频参考以突发并且来自接入点的导频突发是同步的。这导致来自非发射相邻接入点的最大干扰贡献，促进对最差情况下的载波干扰（C / I）的可靠估计，并且还允许接收设备（例如，接入终端）容易地将突发识别为导频参考。在一个实施例中，每个接入点在其最大发射功率电平处或其附近发射导频脉冲串，并且在导频突发期间不发送用户特定数据。

6. 发明授权

US09078269B2 Interference management utilizing HARQ interlaces 有权
标题翻译：利用HARQ交织的干扰管理
公开(公告)号：US09078269B2
公开(公告)日：2015-07-07
申请号：US12212622
申请日：2008-09-17
申请人： Mehmet Yavuz , Sanjiv Nanda , Peter J. Black , Bibhu Mohanty
发明人： Mehmet Yavuz , Sanjiv Nanda , Peter J. Black , Bibhu Mohanty
IPC分类号： H04W4/00 , H04W72/08 , H04W52/24 , H04W48/08 , H04W72/04
CPC分类号： H04W72/082 , H04W48/08 , H04W52/244 , H04W72/0406
摘要： Interference that occurs during wireless communication may be managed through the use of fractional reuse and other techniques. In some aspects fractional reuse may relate to HARQ interlaces, portions of a timeslot, frequency spectrum, and spreading codes. Interference may be managed through the use of a transmit power profile and/or an attenuation profile. Interference also may be managed through the use of power management-related techniques.
摘要翻译：可以通过使用分数重用和其他技术来管理在无线通信期间发生的干扰。在某些方面，分数重用可涉及HARQ交错，时隙的一部分，频谱和扩展码。可以通过使用发射功率分布和/或衰减分布来管理干扰。干扰也可以通过使用与电源管理相关的技术进行管理。

7. 发明授权

US08983480B2 Multiplexing on the reverse link feedbacks for multiple forward link frequencies 有权
标题翻译：对多个前向链路频率的反向链路反馈进行多路复用
公开(公告)号：US08983480B2
公开(公告)日：2015-03-17
申请号：US12906378
申请日：2010-10-18
申请人： Ramin Rezaiifar , Parag Agashe , Peter J. Black
发明人： Ramin Rezaiifar , Parag Agashe , Peter J. Black
IPC分类号： H04W72/04 , H04J13/00 , G11B5/40 , G11B5/84
CPC分类号： H04W72/0466 , G11B5/40 , G11B5/8404 , H04J13/0003
摘要： A method and apparatus for multiplexing reverse link feedback channels on a single reverse link frequency supporting multiple forward link frequencies for forward link channels is provided. The design includes assigning the reverse link frequency to a mobile station, assigning one or more of the forward link frequencies to the reverse link frequency, and code division multiplexing a plurality of the reverse link feedback channels on the reverse link frequency.
摘要翻译：提供一种用于在支持前向链路信道的多个前向链路频率的单个反向链路频率上复用反向链路反馈信道的方法和装置。该设计包括将反向链路频率分配给移动台，将一个或多个前向链路频率分配给反向链路频率，以及对反向链路频率上的多个反向链路反馈信道进行码分复用。

8. 发明授权

US08867456B2 Interface management in wireless communication system using hybrid time reuse 有权
标题翻译：使用混合时间重用的无线通信系统中的接口管理
公开(公告)号：US08867456B2
公开(公告)日：2014-10-21
申请号：US12276932
申请日：2008-11-24
申请人： Mehmet Yavuz , Peter J. Black , Sanjiv Nanda
发明人： Mehmet Yavuz , Peter J. Black , Sanjiv Nanda
IPC分类号： H04W4/00 , H04J3/06 , H04W52/20 , H04W52/14 , H04W52/24 , H04W52/32 , H04W56/00 , H04W28/04 , H04W52/44 , H04W52/38
CPC分类号： H04W72/082 , H04L1/1825 , H04L5/0092 , H04W28/04 , H04W52/143 , H04W52/20 , H04W52/244 , H04W52/32 , H04W52/322 , H04W52/325 , H04W52/38 , H04W52/44 , H04W56/001 , H04W56/0015 , H04W56/0025 , H04W74/04
摘要： Interference that occurs during wireless communication may be managed by hybrid time reuse. A method, apparatus amend medium of communication determines one or more time reuse patterns of respective one or more unplanned access points. A second time reuse pattern that is less interfering with the one or more time reuse patterns is selected. Signals are transmitted according to the second time reuse pattern from a second unplanned access point to an associated access terminal.
摘要翻译：在无线通信期间发生的干扰可以通过混合时间重用来管理。一种修改通信介质的装置的方法确定相应的一个或多个非计划接入点的一个或多个时间重用模式。选择较少干扰一个或多个时间重用模式的第二次重用模式。信号根据第二次重用模式从第二计划外接入点发送到相关接入终端。

9. 发明申请

US20120149379A1 METHODS AND SYSTEMS FOR VARIABLE RATE BROADCAST WITH SOFT HANDOFF 有权
标题翻译：具有软手动变化速率广播的方法和系统
公开(公告)号：US20120149379A1
公开(公告)日：2012-06-14
申请号：US13334882
申请日：2011-12-22
申请人： Peter J. Black
发明人： Peter J. Black
IPC分类号： H04W36/18 , H04W72/04
CPC分类号： H04W72/005 , H04W36/18
摘要： Embodiments described herein relate to providing variable rate broadcast services with soft handoff in wireless communications. In an embodiment, a plurality of access points (e.g., servicing various cells in a broadcast area) may transmit a broadcast content in accordance with a rate set. The rate set may include a plurality of distinct data rates each associated with a transmission format, configured to allow the broadcast packets transmitted by the access points to be incrementally combined (e.g., on a per-slot basis at a subscribing AT). The data rates and corresponding transmission formats in the rate set may be selected in relation to the supportable data rates of the cells in the broadcast area, as well as the requirements for supporting soft handoff in these cells.
摘要翻译：本文描述的实施例涉及在无线通信中提供具有软切换的可变速率广播服务。在一个实施例中，多个接入点（例如，为广播区域中的各个小区提供服务）可以根据速率集合发送广播内容。速率设置可以包括每个与传输格式相关联的多个不同的数据速率，其被配置为允许由接入点发送的广播分组被增量地组合（例如，在订阅的AT以每个时隙为基础）。可以相对于广播区域中的小区的可支持数据速率以及在这些小区中支持软切换的要求来选择速率集合中的数据速率和相应的传输格式。

10. 发明授权

US08189540B2 Method and apparatus for high rate packet data transmission 有权
标题翻译：用于高速率分组数据传输的方法和装置
公开(公告)号：US08189540B2
公开(公告)日：2012-05-29
申请号：US12545471
申请日：2009-08-21
申请人： Roberto Padovani , Paul E Bender , Peter J. Black , Matthew S. Grob , Jurg K. Hinderling , Nagabhushana T. Sindhushayana , Charles E. Wheatley, III
发明人： Roberto Padovani , Paul E Bender , Peter J. Black , Matthew S. Grob , Jurg K. Hinderling , Nagabhushana T. Sindhushayana , Charles E. Wheatley, III
IPC分类号： H04B7/216
CPC分类号： H04W24/02 , H04B7/264 , H04L1/0002 , H04L1/0025 , H04L1/0026 , H04L1/1809 , H04L1/1829 , H04W24/00 , H04W28/04 , H04W28/22 , H04W74/04 , H04W88/02 , H04W88/08
摘要： Methods and apparatus used in a wireless communication system. A data request message may be periodically transmitting by a mobile station to a base station. The data request message may provide information about orthogonal codes to be used by the base station to communicate with the mobile station. The mobile station may receive data transmitted by the base station, the data being transmitted by the base station based on the information about the orthogonal codes provided in the data request message. The information about the orthogonal codes may be based on a quality measure made by the mobile station on a forward link pilot channel from the base station to the mobile station.
摘要翻译：在无线通信系统中使用的方法和装置。数据请求消息可以由移动台周期性地发送到基站。数据请求消息可以提供关于基站要用于与移动台进行通信的正交码的信息。移动台可以基于在数据请求消息中提供的关于正交码的信息，接收由基站发送的数据，由基站发送的数据。关于正交码的信息可以基于移动站在从基站到移动站的前向链路导频信道上所做的质量测量。

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