公开(公告)号：WO1996002094A1

公开(公告)日：1996-01-25

申请号：PCT/US1995008619

申请日：1995-07-07

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  GILHOUSEN, Klein, S.

IPC: H04B07/185

CPC classification number: H04B7/18506 ,  H04W84/06

Abstract: The airborne communication system enables one or more radiotelephones to communicate with a ground based cellular radiotelephone system. In the preferred embodiment, the aircraft is equipped with a repeater that relays a signal from the airborne radiotelephone to the ground base station and vice versa. Alternate embodiments use as airborne base station to register the radiotelephones before registering them with the ground system. Alternately, the antennase on the ground could be used to form aerial cell sites by pointing the antennas upward to where the aircraft flies through the cells. The system of the present invention provides the additional benefit of enabling the ground based cellular radio systems to source a call to the aircraft radiotelephone.

Abstract translation: 机载通信系统使得一个或多个无线电话机能够与基于地面的蜂窝无线电话系统进行通信。 在优选实施例中，飞行器配备有中继器，其将来自机载无线电话机的信号中继到地面基站，反之亦然。 作为机载基站的替代实施例用于在将它们登记到地面系统之前登记无线电话机。 或者，地面上的天线可以通过将天线向上指向飞机穿过细胞的地方来用于形成航空电池站点。 本发明的系统提供了使基于地面的蜂窝无线电系统能够向飞机无线电话机发出呼叫的附加好处。

公开(公告)号：WO1996002093A1

公开(公告)日：1996-01-25

申请号：PCT/US1995008607

申请日：1995-07-07

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  GILHOUSEN, Klein, S.

IPC: H04B07/185

CPC classification number: H04B7/18506 ,  H04W84/06

Abstract: The airborne radio communications system of the present invention enables an airborne radio to communicate with the ground based cellular radiotelephone system. The present invention also enables the ground based system to keep track of the location of the airborne radiotelephone and page it when a call from the ground based telephone system is received. The ground base station is connected to upward radiating antennas that form airborne cells. As the aircraft with the radio flies through the airborne cells, the airborne relay receives the signals from the base station and relays them to the radio. If the radio is transmitting signals, the relay transmits those signals, through the airborne cells, to the base station. As the aircraft moves from cell to cell, the radio is handed off to the next cell to maintain communications with the ground.

Abstract translation: 本发明的机载无线电通信系统使得机载无线电能够与基于地面的蜂窝无线电话系统进行通信。 本发明还使得基于地面的系统能够跟踪机载无线电话机的位置，并且当接收到来自地面的电话系统的呼叫时，该系统将其寻址。 地面基站连接到形成气载小区的向上辐射天线。 随着无线电飞机飞行通过机载小区，机载中继站接收来自基站的信号并将其中继到无线电。 如果无线电正在传输信号，则中继站将这些信号通过机载小区发送到基站。 当飞机从小区移动到小区时，无线电被切换到下一个小区，以保持与地面的通信。

公开(公告)号：WO1996000466A1

公开(公告)日：1996-01-04

申请号：PCT/US1995007970

申请日：1995-06-22

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  ANTONIO, Franklin, P. ,  GILHOUSEN, Klein, S. ,  WOLF, Jack, K. ,  ZEHAVI, Ephraim

IPC: H04B07/26

CPC classification number: H04W16/28 ,  H04B1/7085 ,  H04B1/7117 ,  H04B1/712

Abstract: A system and method for adaptively sectorizing channel resources within a digital cellular communication system. The system utilizes an antenna array for providing at least first and second electromagnetic beams for receiving a first information signal transmitted by a specific one of a plurality of users (22), thereby generating first and second received signals. A first set of beam-forming signals are then generated from the first and second received signals by a beam-forming network (224) and a switch matrix (228). Demodulating receivers (230) are provided for demodulating at least first and second beam-forming signals included within the first set of beam-forming signals, thereby producing first and second demodulated signals. The system further includes a tracking network (240) for tracking multipath information signals, received from various positions and angles of incidence.

Abstract translation: 一种用于在数字蜂窝通信系统内自适应地划分信道资源的系统和方法。 该系统利用天线阵列来提供至少第一和第二电磁波束，用于接收由多个用户（22）中的特定一个用户发送的第一信息信号，从而产生第一和第二接收信号。 然后通过波束形成网络（224）和开关矩阵（228）从第一和第二接收信号产生第一组波束形成信号。 解调接收机（230）被提供用于解调包括在第一组波束形成信号内的至少第一波束形成信号和第二波束形成信号，从而产生第一和第二解调信号。 该系统还包括用于跟踪从各种位置和入射角接收的多径信息信号的跟踪网络（240）。

公开(公告)号：WO1995030274A1

公开(公告)日：1995-11-09

申请号：PCT/US1995005250

申请日：1995-04-28

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  PETERZELL, Paul, E. ,  WILSON, Nathaniel, B. ,  BLACK, Peter, J.

IPC: H03G03/20

CPC classification number: H03G3/3078 ,  H03G3/3089

Abstract: An automatic gain control (AGC) apparatus for a digital receiver is disclosed herein. The AGC apparatus includes an adjustable gain amplifier (18) 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 (22) compares the received power signal to a reference signal and generates a gain control signal in response to a result of the comparison. The saturating integrator (22) includes a decision circuit (46) 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.

Abstract translation: 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增益放大器（18），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（22）将接收的功率信号与参考信号进行比较，并且响应于比较的结果生成增益控制信号。 饱和积分器（22）包括用于基于接收功率信号，参考信号和增益控制信号的值进行积分的判定电路（46）。 在优选实施方式中，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。

公开(公告)号：WO1995026510A1

公开(公告)日：1995-10-05

申请号：PCT/US1995003479

申请日：1995-03-24

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  GILHOUSEN, Klein, S.

IPC: G01S05/06

CPC classification number: H04W64/00 ,  G01S5/06 ,  G01S13/878 ,  H04W76/20

Abstract: A method and apparatus for determining the location of a mobile unit (412) within a cellular system. A synchronized signal at a common phase is generated at each base station (400, 401, 402) in a system. The mobile unit (412) transmits a signal tone. Each base station (400, 401, 402) compares the phase of the signal tone to the common phase of the synchronized signal to produce a phase offset. A system controller compares the difference between the phase offset of a first base station (400) and the phase offset of a second base station (401) and determines the difference in distance between the first base station (400) and the mobile unit (412) and the second base station (401) and the mobile unit (412) defining a hyperbolic or linear curve of locations. The system controller compares the difference between the phase offset of the first base station (400) and the phase offset of a third base station (402) and determines the difference in distance between the first base station (400) and the mobile unit (412) and the third base station (402) and the mobile unit (412) defining a second hyperbolic curve of locations. The system controller determines the intersection of the first and the second hyperbolic curves thus determining the location of the mobile unit (412).

Abstract translation: 一种用于确定蜂窝系统内的移动单元（412）的位置的方法和装置。 在系统中的每个基站（400,401,402）处产生在公共相位处的同步信号。 移动单元（412）发送信号音。 每个基站（400,401,402）将信号音调的相位与同步信号的公共相位进行比较，以产生相位偏移。 系统控制器比较第一基站（400）的相位偏移与第二基站（401）的相位偏移之间的差异，并且确定第一基站（400）和移动单元（412）之间的距离差 ）和第二基站（401）和移动单元（412），其限定位置的双曲线或线性曲线。 系统控制器比较第一基站（400）的相位偏移和第三基站（402）的相位偏移之间的差异，并确定第一基站（400）和移动单元（412）之间的距离差 ）和第三基站（402）和移动单元（412），其定义位置的第二双曲线。 系统控制器确定第一和第二双曲线的交点，从而确定移动单元的位置（412）。

公开(公告)号：WO1995014356A2

公开(公告)日：1995-05-26

申请号：PCT/US1994013091

申请日：1994-11-14

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  GROB, Matthew, S. ,  KARMI, Gadi

IPC: H04Q07/22

CPC classification number: H04W28/06 ,  H04L1/1809 ,  H04M11/06 ,  H04N1/00106 ,  H04W76/10 ,  H04W92/18

Abstract: An apparatus and method of providing communications between standard unmodified terminal equipment over a telephone link that includes a digital wireless link. The digital wireless link introduces substantial time variable delay. In order to pass time sensitive messages over the link, time sensitive messages are recognized and translated into time insensitive messages for transmission over the wireless link. The time insensitive messages indicate the information contained in the time sensitive messages and in the timing of the time sensitive messages. At the receiving end, the time insensitive messages are recognized and the time sensitive messages reconstructed with the appropriate timing.

Abstract translation: 一种通过包括数字无线链路的电话链路在标准未修改的终端设备之间提供通信的装置和方法。 数字无线链路引入了大量的时间可变延迟。 为了通过链接传递时间敏感的消息，时间敏感的消息被识别并转换为无时间敏感的消息以通过无线链路进行传输。 时间不敏感的消息指示时间敏感消息中包含的信息和时间敏感消息的时间。 在接收端，时间不敏感的消息被识别，时间敏感的消息用适当的时间重建。

公开(公告)号：WO1995012938A1

公开(公告)日：1995-05-11

申请号：PCT/US1994012540

申请日：1994-11-01

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  ZEHAVI, Ephraim

IPC: H04J13/00

CPC classification number: H04J13/00 ,  H04B1/707 ,  H04J13/0022 ,  H04J13/004 ,  H04L1/08 ,  H04L27/3427

Abstract: An improved system and method for communicating information at variable data rates over in-phase (I) and quadrature phase (Q) communication channels in a CDMA spread spectrum communication system is disclosed herein. In an exemplary implementation an input information signal is transmitted over either an I or Q communication channel using a direct sequence spread spectrum communication signal. The information signal is initially divided into first and second subsignals, which are respectively provided to first and second coset-encoding networks. The first coset-encoding combines the first subsignal with a first coset code, while the second coset-encoding network combines the second subsignal with a second cosed code orthogonal to the first cosed code. In this way the first and second coset-encoding networks are operative to produce first and second coset-encoding signals, respectively. A composite coset-encoded signal formed from the first and second coset-encoded signals is then modulated by an orthogonal function signal to provide a first modulated signal. In-phase pseudorandom noise (PNI) and quadrature phase pseudorandom noise (PNQ) signals of predetermined PN codes are used for spreading the first modulated signal for transmission to a receiver over either the I or Q communication channel, respectively. The receiver is operative to produce an estimate of the input information signal on the basis of the modulated carrier signal received over either the I or Q communication channel.

Abstract translation: 本文公开了一种用于在CDMA扩频通信系统中的同相（I）和正交相位（Q）通信信道上以可变数据速率传送信息的改进的系统和方法。 在示例性实施方式中，使用直接序列扩频通信信号通过I或Q通信信道发送输入信息信号。 信息信号最初分为第一和第二子信号，分别提供给第一和第二陪集编码网络。 第一陪集编码将第一子信号与第一陪集码组合，而第二陪集编码网络将第二子信号与与第一起诉码正交的第二起始码组合。 以这种方式，第一和第二陪集编码网络分别用于产生第一和第二陪集编码信号。 然后由第一和第二陪集编码信号形成的复合陪集编码信号由正交函数信号调制以提供第一调制信号。 使用预定PN码的同相伪随机噪声（PNI）和正交相位伪随机噪声（PNQ）信号来分别扩展第一调制信号以在I或Q通信信道上传输到接收机。 接收机可操作以基于通过I或Q通信信道接收的调制载波信号来产生输入信息信号的估计。

公开(公告)号：WO1995012296A1

公开(公告)日：1995-05-04

申请号：PCT/US1994012453

申请日：1994-10-28

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  GILHOUSEN, Klein, S. ,  PADOVANI, Roberto ,  WEAVER, Lindsay, A., Jr.

IPC: H04Q07/38

CPC classification number: H04W36/06 ,  H04B7/0491 ,  H04W16/24 ,  H04W36/18 ,  H04W52/146 ,  H04W52/40

Abstract: A method and apparatus providing softer handoff of a mobile unit (90) between sectors (50, 70 and 80) of a common base station (60). A sectorized base station (60) comprises a set of demodulation elements (240A-204N). Each demodulation element (240A-204N) may be assigned to a signal from one of a plurality of sectors. The output of the demodulators (240A-204N) are combined before the decoding process independent of the sector from which the data originated. This configuration provides improved output data reliability, more stable power control, and more efficient use of resources at the base station.

Abstract translation: 一种在公共基站（60）的扇区（50,70和80）之间提供移动单元（90）的更软切换的方法和装置。 扇区化基站（60）包括一组解调单元（240A-204N）。 每个解调元件（240A-204N）可以被分配给来自多个扇区之一的信号。 解调器（240A-204N）的输出在独立于数据来源的扇区的解码处理之前组合。 该配置提供了改进的输出数据可靠性，更稳定的功率控制以及在基站上更有效地利用资源。

公开(公告)号：WO1995006365A1

公开(公告)日：1995-03-02

申请号：PCT/US1994009657

申请日：1994-08-24

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  DEAN, Richard, F. ,  ANTONIO, Franklin, P. ,  GILHOUSEN, Klein, S. ,  WHEATLEY, Charles, E., III

IPC: H04B07/04

CPC classification number: H04B7/0671 ,  H01Q21/29 ,  H04B7/022 ,  H04B7/0491 ,  H04B7/0845 ,  H04B7/0894 ,  H04B7/2628 ,  H04B7/2643 ,  H04W36/18 ,  H04W88/085

Abstract: A distributed antenna system (30, 35) is utilized in a communication system for providing multipath signals which facilitate signal diversity for enhanced system performance. Each node (200) of the antenna system (30, 35) comprises more than one antenna (196). Each antenna (196) at a common node (200) provides a path having a different delay to the base station (100).

Abstract translation: 在用于提供多径信号的通信系统中使用分布式天线系统（30,35），其便于信号分集以增强系统性能。 天线系统（30,35）的每个节点（200）包括多于一个天线（196）。 公共节点（200）处的每个天线（196）提供与基站（100）具有不同延迟的路径。

公开(公告)号：WO1995001018A1

公开(公告)日：1995-01-05

申请号：PCT/US1994006602

申请日：1994-06-22

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  VITERBI, Audrey ,  VITERBI, Andrew

IPC: H04K01/00

CPC classification number: H04B1/707 ,  H04B1/7115

Abstract: A method and apparatus for decoding an orthogonally encoded data signal in a noncoherent receiver system. The method is referred to as dual-maxima metric generation. It comprises the steps of sequentially searching for a maximum energy level in each of two subsets of a given set of symbol indexes and associated energy levels and calculating a difference of the two values to form a soft decision output value. The two subsets are identified by the binary value (either "0" or "1") of a given digit of the binary equivalent of the symbol index. The soft decision output value reflects a measure of confidence of the value of the corresponding digit of the original signal. The dual-maxima generator (204) sequences through the steps one time for each binary digit of the original signal. The method allows the correlated energy from multiple receivers to be combined before the decoding of the signals, thus further reducing the complexity of the circuitry and improving the performance of the decoder.

Abstract translation: 一种在非相干接收机系统中对正交编码的数据信号进行解码的方法和装置。 该方法被称为双最大值度量生成。 它包括以下步骤：依次搜索给定的一组符号索引和相关能级的两个子集中的每一个中的最大能级，并计算两个值的差以形成软决策输出值。 两个子集由符号索引的二进制等效的给定数字的二进制值（“0”或“1”）标识。 软判决输出值反映了原始信号的相应数字值的置信度的度量。 双重最大值生成器（204）对原始信号的每个二进制数字序列进行一次。 该方法允许来自多个接收机的相关能量在信号解码之前被组合，从而进一步降低了电路的复杂性并提高了解码器的性能。