公开(公告)号：WO1998026503A1

公开(公告)日：1998-06-18

申请号：PCT/US1997022113

申请日：1997-12-05

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  SEVIC, John, F. ,  CAMARILLO, Richard, J.

IPC: H03G03/30

CPC classification number: H03F3/211 ,  H03F1/0277 ,  H03F1/0288 ,  H03F3/24 ,  H03F3/602 ,  H03F3/72 ,  H03F2200/294 ,  H03F2203/7236 ,  H03G3/3042 ,  H04B1/0483 ,  H04B2001/0408

Abstract: An amplifier circuit (40) for providing an amplified signal in response to an input signal. The amplifier circuit (40) includes an input network (44) for applying the input signal to a selected at least one of a plurality of amplifier stages. An output network (48) is provided for coupling the amplified signal from the selected at least one amplifier stage. The appropriate amplifier stage is selected by a control circuit (56) in response to a desired power value of the amplified signal. By selectively activating only the amplifier stage(s) that is/are necessary to provide the desired level of output power, increased DC efficiency can be accomplished in applications that require an amplifier which operates linearly over a wide dynamic range.

Abstract translation: 一种用于响应于输入信号提供放大信号的放大器电路（40）。 放大器电路（40）包括用于将输入信号施加到所选择的多个放大器级中的至少一个的输入网络（44）。 输出网络（48）用于耦合来自所选择的至少一个放大器级的放大信号。 响应于放大信号的期望功率值，由控制电路（56）选择适当的放大器级。 通过选择性地激活仅需要提供期望输出功率电平的放大器级，可以在需要在宽动态范围内线性运行的放大器的应用中实现增加的DC效率。

公开(公告)号：WO1998015071A1

公开(公告)日：1998-04-09

申请号：PCT/US1997017380

申请日：1997-09-26

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  KREMM, Steven, A.

IPC: H04B07/01

CPC classification number: H04B7/01 ,  H04B7/2125

Abstract: A method and apparatus for precorrecting timing and frequency in a communication system (100) that employs satellites (116, 118) to reduce timing uncertainty and frequency uncertainty due to satellite motion. A transmitted signal (410) is precorrected, or compensated (342), to account for effects based on known satellite mo tion as the transmitted signal propagates from the transmitter (120) to the satellite (116). Removing these effects reduces the amount of uncertainty in the transmitted signal when it arrives at the receiver (124), thereby making the task of signal reception easier.

Abstract translation: 一种用于在采用卫星（116,118）以减少由于卫星运动引起的定时不确定性和频率不确定性的通信系统（100）中对定时和频率进行预校正的方法和装置。 发射信号（410）被预先校正或补偿（342），以便当发射信号从发射机（120）传播到卫星（116）时，考虑基于已知卫星移动的影响。 当发送信号到达接收机（124）时，去除这些影响减少了传输信号的不确定性，从而使信号接收的任务变得更容易。

公开(公告)号：WO1998015070A1

公开(公告)日：1998-04-09

申请号：PCT/US1997017323

申请日：1997-09-26

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  KREMM, Steven, A. ,  SKINNER, Gordon, S. +di

IPC: H04B07/01

CPC classification number: H04B7/1855 ,  H04B7/01

Abstract: A method and apparatus for determining frequency offsets caused by oscillator error or Doppler effects in a user terminal in a communication system. The system (100) includes at least one user terminal (124, 126) and a base station (112), or gateway (120, 122) for communicating through a satellite (116, 118) with predetermined orbital positions or patterns. A communication signal (500) is precorrected (512) for known Doppler effects, such as between a gateway and a transferring satellite, when used, and transmitted to a user terminal. The user terminal determines the signal frequency relative to a reference oscillator (516, 518), and treats any detected difference as resulting completely from Doppler. The frequency difference is either transferred as data in reverse link transmissions (524, 526), or used as a pre-correction factor for such transmissions (522, 526). The frequency of the reverse link user terminal signals is measured at the gateway (528), again compensating for knowm Doppler effects, to provide a nominal error measurement (530). Measured frequency error or offsets are then divided in half to arrive at a Doppler shift error, or divided in half and scaled to the appropriate frequency to arrive at a user terminal oscillator error (532). The detected error can be transmitted to the user terminal (534) for use in correcting the oscillator output frequency, or for adjusting the timing of, or time tracking for, the user terminal. Alternatively, the detected error can be included as data in subsequent signals for use by gateways or base stations (538, 540).

Abstract translation: 一种用于确定由通信系统中的用户终端中的振荡器误差或多普勒效应引起的频率偏移的方法和装置。 系统（100）包括用于通过具有预定轨道位置或模式的卫星（116,118）进行通信的至少一个用户终端（124,126）和基站（112）或网关（120,122）。 对于已知的多普勒效应，例如网关和传送卫星之间的通信信号（500）在使用时被预先校正（512），并被发送到用户终端。 用户终端确定相对于参考振荡器（516,518）的信号频率，并且完全由多普勒处理任何检测到的差异。 频率差异作为反向链路传输（524,526）中的数据传送，或用作这种传输（522,526）的预校正因子。 在网关（528）处测量反向链路用户终端信号的频率，再次补偿知识多普勒效应，以提供标称误差测量（530）。 然后将测量的频率误差或偏移量分成两半，以得到多普勒频移误差，或者将其分频一半并且缩放到适当的频率以达到用户终端振荡器误差（532）。 检测到的错误可以被发送到用户终端（534），以用于校正用户终端的振荡器输出频率，或用于调整用户终端的定时或时间跟踪。 或者，检测到的错误可以被包括在随后的信号中作为网关或基站使用的信号（538,540）。

公开(公告)号：WO1998014797A1

公开(公告)日：1998-04-09

申请号：PCT/US1997017378

申请日：1997-09-26

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  LEVANON, Nadav ,  VICTOR, Edward, B. ,  VEMBU, Sridhar

IPC: G01S05/12

CPC classification number: G01S5/12 ,  G01S2205/008

Abstract: A system and method for unambiguously determining the position of a user terminal (for example, a mobile wireless telephone) in a low-Earth orbit satellite communications system (100). The system includes a user terminal (106), at least two satellites (104A, 1104B) with known positions and known velocities, and a gateway (102) (that is, a terrestrial base station) for communicating with the user terminal (106) through the satellites (104A, 104B). The method includes the steps of determining a range parameter (1002, 1102, 1202), a range difference parameter (1004, 1104, 1204), and either or both of a range-rate parameter (1106, 1206) and a range-rate difference parameter (1008, 1208). A range parameter represents a distance between one of the satellites (104B, 104B) and the user terminal (106). A range difference parameter represents the difference between (1) the distance between a first one of the satellites (104B, 104B) and the user terminal (106) and (2) the distance between a second one of the satellites (104A, 104B) and the user terminal (106). A range-rate parameter represents a relative radial velocity between one of the satellites (104A, 104B) and the user terminal (106). A range-rate difference parameter represents the difference between (a) a relative radial velocity between a first one of the satellites (104A, 104B) and the user terminal (106) and (b) a relative radial velocity between a second one of the satellites (104A, 104B) and the user terminal (106). The position of the user terminal (106) on the Earth's surface is then determined based on the known positions and known velocities of the satellites (104A, 104B), the range parameter, the range difference parameter, and either or both of the range-rate parameter and the range-rate difference parameter.

Abstract translation: 一种用于明确地确定低地球轨道卫星通信系统（100）中的用户终端（例如，移动无线电话）的位置的系统和方法。 该系统包括用户终端（106），具有已知位置和已知速度的至少两个卫星（104A，1104B）以及用于与用户终端（106）通信的网关（102）（即，地面基站） 通过卫星（104A，104B）。 该方法包括以下步骤：确定范围参数（1002,1102,1202），范围差参数（1004,1104,1204）以及范围速率参数（1106,1206）和范围速率参数 差参数（1008,1208）。 范围参数表示卫星（104B，104B）和用户终端（106）之间的距离。 范围差参数表示（1）卫星（104B，104B）中的第一卫星与用户终端（106）之间的距离与（2）卫星（104A，104B）中的第二卫星之间的距离 和用户终端（106）。 距离率参数表示其中一个卫星（104A，104B）和用户终端（106）之间的相对径向速度。 距离率差参数表示（a）卫星（104A，104B）中的第一卫星与用户终端（106）之间的相对径向速度和（b）第一卫星之间的相对径向速度 卫星（104A，104B）和用户终端（106）。 然后，基于卫星（104A，104B）的已知位置和已知速度，范围参数，距离差参数以及范围 - 距离的一个或两个来确定用户终端（106）在地球表面上的位置， 速率参数和范围速率差参数。

公开(公告)号：WO1998013951A2

公开(公告)日：1998-04-02

申请号：PCT/US1997016977

申请日：1997-09-23

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  SAINTS, Keith, W.

IPC: H04B07/00

CPC classification number: H04W52/08 ,  H04W52/18

Abstract: The present invention is a method and apparatus for providing a received signal quality metric which is optimally designed to control the transmission power of a transmitter in a closed loop power control system. The present invention is described in the context of a spread spectrum communication system but it is equally applicable to other types of communication systems. In the present invention, the power control system is described for controlling the power of transmissions from a base station to a mobile station, referred to as forward link transmissions.

Abstract translation: 本发明是一种用于提供接收信号质量度量的方法和装置，其被最佳地设计成在闭环功率控制系统中控制发射机的发射功率。 在扩频通信系统的上下文中描述了本发明，但是它同样适用于其他类型的通信系统。 在本发明中，描述了用于控制从基站到移动台的传输功率的功率控制系统，称为前向链路传输。

公开(公告)号：WO1998009460A1

公开(公告)日：1998-03-05

申请号：PCT/US1997015371

申请日：1997-08-28

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  ZIV, Noam, A.

IPC: H04Q07/30

CPC classification number: H04W92/12 ,  H04W28/08

Abstract: A network providing communication between a public switched telephone network and a remote unit (34) is comprised of a mobile switching center (10, 20). The network also comprises a plurality of base station controllers (12A-C, 22A-C) coupled to the mobile switching center (10, 20). A packet routing entity (26) is coupled to the plurality of base station controllers (12A-I, 24A-I). A plurality of base station transceiver subsystems coupled to the packet routing entity (26). The packet routing entity (26) is capable of passing packets between a first one of the plurality of base station transceivers (14A) and each of the plurality of base station controllers (12A-C, 22A-C). In this way the capacity of the network is decoupled from the coverage area of the network.

Abstract translation: 提供公共交换电话网络和远程单元（34）之间的通信的网络包括移动交换中心（10,20）。 网络还包括耦合到移动交换中心（10,20）的多个基站控制器（12A-C，22A-C）。 分组路由实体（26）耦合到多个基站控制器（12A-1,24A-I）。 耦合到分组路由实体（26）的多个基站收发器子系统。 分组路由实体（26）能够在多个基站收发机（14A）中的第一个与多个基站控制器（12A-C，22A-C）中的每一个之间传送分组。 以这种方式，网络的容量与网络的覆盖区域分离。

公开(公告)号：WO1998005129A2

公开(公告)日：1998-02-05

申请号：PCT/US1997013225

申请日：1997-07-29

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  SOLIMAN, Samir, S.

IPC: H04B07/005

CPC classification number: H04W52/343 ,  H04B7/216 ,  H04W24/00 ,  H04W52/08

Abstract: A system and method for monitoring and managing the loading conditions in a CDMA wireless communication system (100). The system comprises a load monitoring device (102) such as a CDMA mobile station (104) connected to a data logging and processing device (106) such as a diagnostic monitor. The monitoring device (102) is placed within the service area of a base station (112). The monitoring device (102) periodically initiates a call, is assigned to a traffic channel normally, and logs a power control parameter such as mobile station transmit power or the number of closed-loop power control commands received per unit time. From this information, the load monitoring device (102) can infer the real-time traffic loading conditions of the base station (112). If the loading of the system exceeds a predetermined threshold, an alarm may be sent to the system management center (114) in order to take some action to limit additional loading on the base station (112).

Abstract translation: 一种用于在CDMA无线通信系统（100）中监视和管理加载条件的系统和方法。 该系统包括诸如连接到诸如诊断监视器的数据记录和处理设备（106）的CDMA移动站（104）的负载监视设备（102）。 监视装置（102）被放置在基站（112）的服务区域内。 监视装置（102）周期性地发起呼叫，被正常分配给业务信道，并且记录诸如移动台发射功率的功率控制参数或每单位时间接收的闭环功率控制命令的数量。 根据该信息，负载监视装置（102）可以推断基站（112）的实时业务负载状况。 如果系统的加载超过预定阈值，则可以向系统管理中心（114）发送警报，以便采取一些动作来限制基站（112）上的附加负载。

公开(公告)号：WO1998005090A1

公开(公告)日：1998-02-05

申请号：PCT/US1997013585

申请日：1997-07-31

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  FILIPOVIC, Daniel

IPC: H01Q11/08

CPC classification number: H01Q1/362 ,  H01Q11/08

Abstract: A bent-segment helical antenna (700A, 700B) utilizes one or more radiators (720) wrapped in a helical fashion. The radiators (720) are comprised of a plurality of segments (712, 714, 716). A first segment (712) extends from a feed network (730) at a first end (732) of a radiator portion (702) of the antenna (700A, 700B) toward a second end (734) of the radiator portion (702A, 702B). A second segment (714) is adjacent to and offset from the first segment (712). A third segment (716) connects the first and second segments (712, 714) at the second end (734) of the radiator portion (702A, 702B).

Abstract translation: 弯曲段螺旋天线（700A，700B）利用以螺旋方式包裹的一个或多个辐射器（720）。 散热器（720）由多个段（712,714,716）组成。 第一段（712）从天线（700A，700B）的散热器部分（702）的第一端（732）处的馈电网络（730）朝向散热器部分（702A，700B）的第二端（734） 702B）。 第二段（714）与第一段（712）相邻并偏移。 第三段（716）连接散热器部分（702A，702B）的第二端（734）处的第一和第二段（712,714）。

公开(公告)号：WO1998002936A1

公开(公告)日：1998-01-22

申请号：PCT/US1997012399

申请日：1997-07-16

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  NGHIEM, David ,  STILLINGER, David, C. ,  LE, Joe, Chieu

IPC: H01Q11/08

CPC classification number: H01Q11/08

Abstract: A modified helical antenna having increased gain over that of a conventional axial mode helical antenna (200) without increasing the length of the antenna. The modified helical antenna (700) uses a conducting cylinder (702) placed around approximately the first two turn of the helix (716) of the antenna (700). The height of the conducting cylinder (702) should extend from a ground plane (712) to approximately 1.5 helical turns. Closely coupling the conducting cylinder (702) to the helix (716) increases the gain in the main beam (318) as energy in the side lobes (324, 326) decreases. This is true as the inside diameter of the conducting cylinder (702) approaches that of the helix (716) up to a cut-off point. For a particular application, optimization of the inside diameter (710) of the conducting cylinder (702) can be achieved empirically or through numerical analysis.

Abstract translation: 改进的螺旋天线的增益高于常规轴向模式螺旋天线（200）的增益，而不增加天线的长度。 改进的螺旋天线（700）使用围绕天线（700）的螺旋（716）的前两转的大致放置的导电圆筒（702）。 导电圆筒（702）的高度应该从接地平面（712）延伸到约1.5螺旋匝。 随着旁瓣（324,326）中的能量减小，将导电圆筒（702）紧密耦合到螺旋（716）增加了主波束（318）中的增益。 这是真实的，因为导电圆筒（702）的内径接近螺旋（716）的直径直到截止点。 对于特定应用，导电气缸（702）的内径（710）的优化可以凭经验地或通过数值分析实现。

公开(公告)号：WO1997048248A2

公开(公告)日：1997-12-18

申请号：PCT/US1997010285

申请日：1997-06-11

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  YAO, Yu-Dong ,  GROB, Matthew, S. ,  LEKVEN, Eric, J. ,  WHITE, Katherine, W.

IPC: H04Q07/28

CPC classification number: H04W72/005 ,  H04W4/10 ,  H04W28/26 ,  H04W76/45 ,  H04W84/08

Abstract: In a push-to-talk dispatch system, a method and apparatus for providing an accelerated response to a push-to-talk origination message. A first base station (110A) allocates a first set of equipment (112A) to support a push-to-talk connection. A first system controller (118) allocates a second set of equipment (12A, 126) to support the push-to-talk connection. Upon receipt of a push-to-talk origination message from a first remote unit (100), the first base station (110A) transmits an immediate response to the first remote unit (100), instructing it to communicate through the first set of equipment (112A) and the second set of allocated equipment (120A, 126).

Abstract translation: 在即按即说调度系统中，提供对即按即说发起消息的加速响应的方法和装置。 第一基站（110A）分配第一组设备（112A）以支持即按即说连接。 第一系统控制器（118）分配第二组设备（12A，126）以支持即按即说连接。 在从第一远程单元（100）接收到即按即说发起消息时，第一基站（110A）向第一远程单元（100）发送即时响应，指示其通过第一组设备进行通信 （112A）和第二组分配的设备（120A，126）。