公开(公告)号：US20020031192A1

公开(公告)日：2002-03-14

申请号：US09956325

申请日：2001-09-18

Applicant: Qualcomm, Inc.

Inventor： Qiuzhen Zou ,  Gilbert C. Sih ,  Inyup Kang

IPC: H04L027/14 ,  H04L027/22

CPC classification number: G01S5/0036 ,  G01S19/235 ,  G01S19/254 ,  G01S19/258 ,  G01S19/30

Abstract: The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. One embodiment of the invention comprises a method for performing position location on a subscriber unit in a terrestrial wireless telephone system using a set of satellites each transmitting a signal, the terrestrial wireless telephone system having base stations, including the steps of transmitting an aiding message from the base station to the subscriber unit, said aiding message containing information regarding a data boundary for each signal from the set of satellites, applying correlation codes to each signal yielding corresponding correlation data and accumulating said correlation data over an first interval preceding a corresponding data boundary yielding a first accumulation result, and a second interval following said corresponding data boundary yielding a second accumulation result.

Abstract translation: 本发明是一种用于在无线通信系统中执行位置定位的新颖且改进的方法和装置。 本发明的一个实施例包括一种用于在陆地无线电话系统中的用户单元上执行位置定位的方法，该方法使用一组发射信号的卫星，具有基站的地面无线电话系统包括以下步骤：从 基站到用户单元，所述辅助消息包含关于来自卫星组的每个信号的数据边界的信息，将相关代码应用于产生相应相关数据的每个信号，并在对应的数据边界之前的第一间隔上累加所述相关数据 产生第一累积结果，并且在所述对应数据边界之后的第二间隔产生第二累积结果。

公开(公告)号：US06167270A

公开(公告)日：2000-12-26

申请号：US503871

申请日：2000-02-14

Applicant: Ramin Rezaiifar ,  Yu-Cheun Jou ,  Edward G. Tiedemann, Jr.

Inventor： Ramin Rezaiifar ,  Yu-Cheun Jou ,  Edward G. Tiedemann, Jr.

IPC: E06C1/32 ,  E06C7/08 ,  E06C7/46 ,  E06C7/48 ,  H04B7/185 ,  H04B7/26 ,  H04J1/00 ,  H04W36/18 ,  H04W48/12 ,  H04W52/02 ,  H04W72/04 ,  H04W72/12 ,  H04W76/04 ,  H04Q7/20

CPC classification number: H04B7/2656 ,  H04B7/18584 ,  H04B7/264 ,  H04W36/18 ,  H04W48/12 ,  H04W52/0216 ,  H04W52/0245 ,  H04W72/0406 ,  H04W72/1278 ,  H04W76/27 ,  Y02D70/1222 ,  Y02D70/446 ,  Y02D70/449

Abstract: A channel structure for use in communication systems. Two sets of physical channels, one for the forward link and another for the reverse link, are utilized to facilitate communication of a variety of logical channels. The physical channels comprise data and control channels. In the exemplary embodiment, the data channels comprise fundamental channels which are used to transmit voice traffic, data traffic, high speed data, and other overhead information and supplemental channels which are used to transmit high speed data. The fundamental channels can be released when the remote stations are idle to more fully utilized the available capacity. The control channels are used to transmit paging and control messages and scheduling information.

Abstract translation: 用于通信系统的通道结构。 利用两组物理信道，一个用于前向链路，另一个用于反向链路，以促进各种逻辑信道的通信。 物理信道包括数据和控制信道。 在示例性实施例中，数据信道包括用于传输语音业务，数据业务，高速数据以及用于发送高速数据的其他开销信息和补充信道的基本信道。 当远程站空闲以便更充分地利用可用容量时，可以释放基本信道。 控制信道用于发送寻呼和控制消息和调度信息。

公开(公告)号：US6166599A

公开(公告)日：2000-12-26

申请号：US330494

申请日：1999-06-11

Applicant: Vladimir Aparin ,  Charles J. Persico

Inventor： Vladimir Aparin ,  Charles J. Persico

IPC: H03F1/32 ,  H03H11/28 ,  H03F1/26 ,  H03F1/30

CPC classification number: H03H11/28 ,  H03F1/3241 ,  H03F1/3258 ,  H03F2200/294 ,  H03F2200/372

Abstract: Techniques to reduce intermodulation distortion at the output of an active circuit having even-order and odd-order nonlinearities. The IM3 products generated by the even-order nonlinearity of the active circuit are canceled against the IM3 products generated by the odd-order nonlinearity. The amplitude and phase of the IM3 products can be manipulated by adjusting either the source or load impedance, or both, of the active circuit. The amplitude and phase of the IM2 products generated by the even-order nonlinearity can be manipulated by adjusting the impedance of the active circuit at sub-harmonic and second harmonic frequencies (i.e., the frequencies of the IM2 products). The amplitude and phase of the IM3 products generated by the odd-order nonlinearity can be manipulated by adjusting the impedance of the active circuit at the fundamental frequency. By properly tuning or "matching" the impedance of either the source or load, or both, of the active circuit at either the sub-harmonic or second harmonic frequency, or both, the amplitude and phase of the IM2 products can be adjusted such that the IM3 products resulting from the even-order nonlinearity approximately cancel the IM3 product(s) resulting from the odd-order nonlinearity.

Abstract translation: 降低具有偶次和奇数非线性的有源电路的输出端的互调失真的技术。 由有源电路的偶次非线性产生的IM3产品与由奇数非线性产生的IM3产品相抵消。 可以通过调节有源电路的源或负载阻抗或两者来操纵IM3产品的振幅和相位。 通过调节亚谐波和二次谐波频率（即IM2产品的频率）上的有源电路的阻抗，可以控制由偶次非线性产生的IM2产品的振幅和相位。 由奇数阶非线性产生的IM3产品的振幅和相位可以通过调节基频的有源电路的阻抗来进行调节。 通过在亚谐波或二次谐波频率或两者中适当调谐或“匹配”有源电路的源或负载或两者的阻抗，可以调整IM2产品的振幅和相位，使得 由偶数非线性产生的IM3产品大致取消了由奇数非线性引起的IM3产品。

公开(公告)号：US6101168A

公开(公告)日：2000-08-08

申请号：US969319

申请日：1997-11-13

Applicant: Tao Chen ,  Joseph P. Odenwalder ,  Edward G. Tiedemann, Jr. ,  Serge Willenegger

Inventor： Tao Chen ,  Joseph P. Odenwalder ,  Edward G. Tiedemann, Jr. ,  Serge Willenegger

IPC: H04L1/00 ,  H04L1/08 ,  H04L1/18 ,  H04J13/00

CPC classification number: H04L1/0059 ,  H04L1/0001 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0054 ,  H04L1/0068 ,  H04L1/0069 ,  H04L1/0071 ,  H04L1/08 ,  H04L1/1816 ,  H04L1/1819 ,  H04L1/1825 ,  H04L1/1845 ,  H04L1/1867 ,  H04L1/1893 ,  H04W52/44 ,  H04L1/1809 ,  Y02B60/50

Abstract: An efficient retransmission of data using symbol accumulation wherein the packet received in error is retransmitted at a lower energy-per-bit level concurrently in the same frame with the new packet. The destination device receives the data transmission and retransmission, demodulate the signal, and separates the received data into the new and retransmitted packet. The destination device then accumulates the energy of the retransmitted packet with the energy already accumulated for the packet received in error and decodes the accumulated packet. The accumulation of the additional energy provided by the subsequent retransmissions improves the probability of a correct decoding. The throughput rate can be improved since the packet received in error is retransmitted concurrently with the transmission of the new data packet. The capacity is maximized since the retransmission of the packet received in error is at a lower energy level than that of the new packet.

Abstract translation: 使用符号累积的数据的有效重传，其中以与新分组相同的帧同时以较低的每比特能级重发误差接收的分组。 目的设备接收数据传输和重传，对信号进行解调，并将接收到的数据分离成新的和重发的分组。 然后，目的地设备以错误地接收的分组已经累积的能量累积重传分组的能量，并对累积的分组进行解码。 由后续重传提供的附加能量的累加提高了正确解码的概率。 可以提高吞吐率，因为与新数据分组的传输同时重发错误接收的分组。 容量被最大化，因为错误地接收到的分组的重传处于比新分组更低的能级。

公开(公告)号：US6075847A

公开(公告)日：2000-06-13

申请号：US247881

申请日：1999-02-10

Applicant: Nikolai K. N. Leung

Inventor： Nikolai K. N. Leung

IPC: H04N1/32 ,  H04M11/00 ,  H04N1/327

CPC classification number: H04N1/32708 ,  H04N1/32704 ,  H04N1/32719 ,  H04N1/32721

Abstract: A method and system for detecting fax calls in a network that alternatively operates in either a voice mode or a fax mode. A detection threshold is first initialized, a first detector detects whether a calling tone has been transmitted from a calling fax machine to a called fax machine, and a second detector detects whether an identification tone has been sent from the called fax machine to the calling fax machine. If the calling tone has been transmitted from the calling fax machine to the called fax machine the detection threshold is decremented a first amount, if the identification tone has been transmitted from the called fax machine to the calling fax machine the detection threshold is decremented a second amount, and if both the calling tone and the identification tone have been sent the detection threshold is decremented a third amount. A flag measure is generated by monitoring, with a third detector, signals sent from the called fax machine. The flag measure is representative of the number of information flags detected by the third detector. The flag measure is compared to the detection threshold and, if the flag measure exceeds the detection threshold, a fax call is detected. The detection of the fax call may then be used to switch a network from voice mode to fax mode. The vocoder used in the voice mode is temporarily muted when the detection threshold is first exceeded in order to confirm the existence of the fax call before switching from voice mode to fax mode.

Abstract translation: 一种在网络中检测传真呼叫的方法和系统，其可以以语音模式或传真模式操作。 检测阈值首先被初始化，第一检测器检测呼叫音是否已经从呼叫传真机发送到被叫传真机，而第二检测器检测是否已经从被叫传真机发送识别音到主叫传真 机。 如果已经从主叫传真机向被叫传真机传送呼叫音，则检测阈值递减第一量，如果已经从被叫传真机向主叫传真机发送了识别音，则检测阈值递减一秒 量，并且如果呼叫音和识别音都已经被发送，则检测阈值递减第三量。 通过使用第三检测器监视从被叫传真机发送的信号来生成标志测量。 标志测量表示由第三检测器检测的信息标志的数量。 将标志测量与检测阈值进行比较，如果标志测量超过检测阈值，则检测到传真呼叫。 然后可以使用传真呼叫的检测来将网络从语音模式切换到传真模式。 当首先超过检测阈值时，在语音模式下使用的声码器暂时被静音，以便在从语音模式切换到传真模式之前确认传真呼叫的存在。

公开(公告)号：US6044103A

公开(公告)日：2000-03-28

申请号：US877293

申请日：1997-06-17

Applicant: Lindsay A. Weaver, Jr.

Inventor： Lindsay A. Weaver, Jr.

IPC: H04B7/26 ,  H04J11/00 ,  H04B1/707

CPC classification number: H04B7/2631

Abstract: A novel and improved method and apparatus for generating a reduced peak amplitude high data rate channel comprised of a set of lower rate channels is described. The set of lower rate channels are phase rotated before being summed and transmitted. The amount of phase rotation is dependent on the number of channels used to form the higher rate channel. In an embodiment where two lower rate channels are used, the in-phase and quadrature-phase components of the two channels are complex multiplied before upconversion with an in-phase and quadrature-phase sinusoids. For a high rate channel comprised of more than two lower rate channels, the in-phase and quadrature-phase component of each channel is upconverted with a set of sinusoids that are phase offset from one another.

Abstract translation: 描述了一种用于产生由一组较低速率信道组成的降低峰值幅度的高数据速率信道的新颖和改进的方法和装置。 较低速率信道的集合在被相加和发送之前被相位旋转。 相位旋转量取决于用于形成较高速率通道的通道数。 在使用两个较低速率信道的实施例中，两个信道的同相和正交相位分量在上变频之前与同相和正交相位正弦波相乘。 对于由多于两个较低速率信道组成的高速率信道，每个信道的同相和正交相位分量由彼此相位偏移的一组正弦波上变频。

公开(公告)号：US5940762A

公开(公告)日：1999-08-17

申请号：US649959

申请日：1996-05-01

Applicant: Kuo-Chun Lee ,  Gadi Karmi ,  Bibhu Mohanty ,  Todd R. Sutton ,  Noam A. Ziv

Inventor： Kuo-Chun Lee ,  Gadi Karmi ,  Bibhu Mohanty ,  Todd R. Sutton ,  Noam A. Ziv

IPC: H04W36/14 ,  H04W36/18 ,  H04Q7/22

CPC classification number: H04W36/0066 ,  H04W36/18 ,  H04W36/22

Abstract: A method and apparatus for performing an inter-system soft handoff is described. In accordance with the present invention, when a subscriber unit crosses from a first cellular system to a second cellular system, a base station controller determines if sufficient network resources are available to conduct a inter-system soft handoff. If so, the base station controller generates a set of signaling messages that cause call processing resource to be allocated and for the call to be processed at the second cellular system. The base station controller then perform data-selection and data-broadcast for the call by transmitting data to the subscriber unit by way of the second cellular system as well as via one or more base stations to which the base station controller is directly coupled. The determination as to whether sufficient network resources are available to conduct the inter-system soft handoff is based on the type of connection that exists between the first cellular system and the second cellular system, the number of inter-system calls being conducted, and the frame offset of the call currently being processed.

Abstract translation: 描述了用于执行系统间切换的方法和装置。 根据本发明，当用户单元从第一蜂窝系统交叉到第二蜂窝系统时，基站控制器确定足够的网络资源是否可用于进行系统间切换。 如果是，则基站控制器生成一组信令消息，这些信令消息使呼叫处理资源被分配，并且呼叫在第二蜂窝系统处被处理。 基站控制器然后通过第二蜂窝系统以及经由基站控制器直接耦合到的一个或多个基站向用户单元发送数据来执行呼叫的数据选择和数据广播。 关于足够的网络资源是否可用于进行系统间切换的确定是基于存在于第一蜂窝系统和第二蜂窝系统之间的连接类型，正在进行的系统间呼叫的数量，以及 正在处理的呼叫的帧偏移量。

公开(公告)号：US09628309B1

公开(公告)日：2017-04-18

申请号：US15016731

申请日：2016-02-05

Applicant: QUALCOMM Incorporated

Inventor： Le Nguyen Luong ,  Yoshiro Fukuoka

IPC: H04L27/00 ,  H04L27/14 ,  H04L27/22

CPC classification number: H04L25/03057

Abstract: A method performed by a wireless device includes receiving a first signal that contains one or more modulated symbols and determining a signal strength of the first signal. The method also includes adjusting a remembrance factor based on the signal strength of the first signal and demodulating the one or more modulated symbols based on the first signal and based on a number of previously demodulated symbols. The number of previously demodulated symbols utilized in the demodulation is based on the remembrance factor.

公开(公告)号：US09312835B2

公开(公告)日：2016-04-12

申请号：US13776274

申请日：2013-02-25

Applicant: QUALCOMM Incorporated

Inventor： Crown Sen Shieh ,  Abid Hussain ,  Thomas J O'Brien

IPC: H03K5/12 ,  G06F1/26 ,  G06F1/32

CPC classification number: H03K5/12 ,  G06F1/26 ,  G06F1/263 ,  G06F1/3287 ,  Y02D10/171

Abstract: A power control device can generate control signals to control operation of power sources. Additional control signals control operation of load switches that can be connected to the power sources to provide secondary sources of power. The load switches can be turned in a gradual manner at rates that depend on the power sources to which they are connected. The outputs of the load switches can be monitored for overvoltage and undervoltage conditions relative to the power sources to which they are connected.

Abstract translation: 功率控制装置可以产生控制信号以控制电源的操作。 附加的控制信号控制可连接到电源的负载开关的操作，以提供二次电源。 负载开关可以以依赖于它们连接的电源的速率逐渐地转动。 负载开关的输出可以相对于与它们连接的电源进行过压和欠压条件的监控。

公开(公告)号：US20130328634A1

公开(公告)日：2013-12-12

申请号：US13536728

申请日：2012-06-28

Applicant: Daniel Fred Filipovic ,  Vishal Agarwal

Inventor： Daniel Fred Filipovic ,  Vishal Agarwal

IPC: H03L1/04

CPC classification number: H03L1/022

Abstract: A method in a mobile communication device includes: measuring a first temperature associated with a crystal configured to provide a reference signal having a frequency; measuring a second temperature associated with a component that is coupled to the crystal by an electrically and thermally conductive line; and compensating, based upon the measuring of the first and second temperatures, for a change in the frequency of the reference signal of the crystal.

Abstract translation: 一种移动通信设备中的方法包括：测量与被配置为提供具有频率的参考信号的晶体相关联的第一温度; 测量与通过导电和导热线耦合到所述晶体的部件相关联的第二温度; 并且基于第一和第二温度的测量来补偿晶体的参考信号的频率的变化。