公开(公告)号：WO1995012937A1

公开(公告)日：1995-05-11

申请号：PCT/US1994012448

申请日：1994-10-27

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  ZEHAVI, Ephraim

IPC: H04J13/00

CPC classification number: H04J13/0048 ,  H04B1/707 ,  H04J13/0022 ,  H04J13/102

Abstract: An improved system and method for communicating information over in-phase (I) and quadrature phase (Q) communication channels in a spread spectrum communication system is disclosed herein. In an exemplary implementation, first and second information signals (an, bn) are respectively transmitted over the I and Q communication channels using direct sequence spread spectrum communication signals. In-phase pseudorandom noise (PNI) and quadrature phase pseudorandom noise (PNQ) signals of predetermined PN codes (178, 180) are used for spreading the first and second information signals (an, bn), respectively. In particular, the PNI and PNQ signals are respectively combined with the first and second information signals (an, bn) and an orthogonal function signal (174) to provide I-channel and Q-channel modulation signals (SI, SQ). The I-channel and Q-channel modulation signals (SI, SQ) are used for modulating in-phase (I) and quadrature phase (Q) carrier signals for transmission to a receiver via the I and Q communication channels, respectively. In a preferred implementation, the receiver is operative to produce an estimate of at least the first information signal on the basis of the I-channel and Q-channel modulated carrier signals (RI, RQ) received over the I and Q communication channels. The received I-channel and Q-channel modulated carrier signals (RI, RQ) are demodulated and despread, with the resultant sequences being correlated into in-phase (I) and quadrature phase (Q) projection signals. A phase rotator operates to provide an estimate of at least the first information signal based on the I and Q projection signals and a received pilot signal.

Abstract translation: 本文公开了一种用于在扩展频谱通信系统中的同相（I）和正交相位（Q）通信信道上传送信息的改进的系统和方法。 在示例性实现中，使用直接序列扩展频谱通信信号，在I和Q通信信道上分别发送第一和第二信息信号（a，bn）。 使用预定PN码（178,180）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和第二信息信号（an，bn）。 特别地，PNI和PNQ信号分别与第一和第二信息信号（an，bn）和正交函数信号（174）组合以提供I信道和Q信道调制信号（SI，SQ）。 I信道和Q信道调制信号（SI，SQ）用于调制同相（I）和正交相位（Q）载波信号，以分别经由I和Q通信信道发送到接收机。 在优选实现中，接收机可操作以基于通过I和Q通信信道接收的I信道和Q信道调制载波信号（RI，RQ）产生至少第一信息信号的估计。 所接收的I信道和Q信道调制载波信号（RI，RQ）被解调和解扩，结果序列被相关成同相（I）和正交相位（Q）投影信号。 相位旋转器用于基于I和Q投影信号和接收到的导频信号来提供至少第一信息信号的估计。

公开(公告)号：WO1995012262A1

公开(公告)日：1995-05-04

申请号：PCT/US1994012452

申请日：1994-10-28

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  BLAKENEY, Robert, D., II ,  WEAVER, Lindsay, A., Jr. ,  ZIV, Noam, A. ,  WILLIAMSON, Paul, T. ,  PADOVANI, Roberto

IPC: H04J13/00

CPC classification number: H04B1/7117 ,  H04B1/7087

Abstract: In a receiver having a plurality of demodulation elements (204A, 204B, 204C), a method of assigning the plurality of demodulation element to a set of available signals. A first method emphasizes diversity of transmitting devices so that power control is optimal. A second method emphasizes the maximum signal strength available to produce aggregate maximum signal strength. Both methods control the number of reassignments so that excessive data is not lost during the reassignment process. The apparatus comprises the plurality of demodulation elements (204A, 204B, 204C), at least one searcher element (202), and a controller (200).

Abstract translation: 在具有多个解调元件（204A，204B，204C）的接收机中，将多个解调元件分配给一组可用信号的方法。 第一种方法强调发射设备的多样性，使得功率控制是最佳的。 第二种方法强调可产生最大信号强度的最大信号强度。 这两种方法都可以控制重新分配的次数，以便在重新分派过程中不会丢失过多的数据。 该装置包括多个解调元件（204A，204B，204C），至少一个搜索器元件（202）和控制器（200）。

公开(公告)号：WO1995008888A1

公开(公告)日：1995-03-30

申请号：PCT/US1994010774

申请日：1994-09-23

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  KINDRED, Daniel, Ray ,  BUTLER, Brian, K. ,  ZEHAVI, Ephraim ,  WOLF, Jack, Keil

IPC: H04L25/02

CPC classification number: H03M13/3776 ,  H03M13/37 ,  H03M13/41 ,  H04B1/707 ,  H04B2201/70703 ,  H04L1/0009 ,  H04L1/0032 ,  H04L1/0046 ,  H04L1/0052 ,  H04L1/0054 ,  H04L1/0071 ,  H04L1/08 ,  H04L1/20 ,  H04L1/208 ,  H04L25/0262 ,  H04L25/03178

Abstract: A Viterbi decoder (20) for recovering the original bit data stream that was convolutionally encoded as a code symbol stream in a Code Division Multiple Access (CDMA) mobile communication system (22). The decoder (20) simultaneously decodes at the several data rates associated with certain multirate vocoders. The decoder (20) can decode at an unknown data rate in either continuous or framed packed modes. It accomplishes this by simultaneously decoding at multiple rates and by creating one or more data quality metrics for each decoded data packet. Special input and output buffering is provided to isolate the decoder (50) from system timing constraints. The input buffer (48) includes selection and accumulation logic to organize code symbol data into the packet order for repeat mode or random burst mode at lower frame data rates. Decoded data packets for each of several predetermined data transfer rates are held in an output buffer (54) for about half of the decoding cycle, thereby permitting the system microprocessor to examine and select the appropriate decoded data packet. The decoder (50) also can be reconfigured to operate at any one of several predetermined convolutional encoding algorithms. The Viterbi decoder (20), implemented as a single monolithic integrated circuit, can be used in any and all of many different multiuser telecommunications channels.

Abstract translation: 一种用于在码分多址（CDMA）移动通信系统（22）中恢复被卷积编码为码符号流的原始比特数据流的维特比解码器（20）。 解码器（20）以与某些多速率声码器相关联的几个数据速率同时解码。 解码器（20）可以以连续或框架打包模式中的未知数据速率进行解码。 它通过以多个速率同时解码并通过为每个解码的数据分组创建一个或多个数据质量度量来实现。 提供特殊的输入和输出缓冲以将解码器（50）与系统时序约束隔离开来。 输入缓冲器（48）包括选择和累积逻辑，用于以较低帧数据速率将代码符号数据组织成用于重复模式或随机突发模式的分组顺序。 用于数个预定数据传送速率中的每一个的解码的数据分组被保存在输出缓冲器（54）中约一半的解码周期，从而允许系统微处理器检查并选择适当的解码数据分组。 解码器（50）还可以被重新配置为在几个预定的卷积编码算法中的任何一个上进行操作。 实现为单个单片集成电路的维特比解码器（20）可以用于许多不同的多用户电信信道中的任何一个和全部。

公开(公告)号：WO1993015502A1

公开(公告)日：1993-08-05

申请号：PCT/US1993000703

申请日：1993-01-26

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  GARDNER, William, R. ,  JACOBS, Paul, E.

IPC: G10L09/02

CPC classification number: H04L1/0071 ,  G10L19/005 ,  G10L19/07 ,  H03M13/35 ,  H04B1/665 ,  H04L1/0083 ,  H04L1/0086

Abstract: A method and system (16) by which parameter data representative of vocoded speech are organized into a data packet for transmission so as to reduce the impact of transmission channel induced errors on the data packet. A data packet is constructed with certain most perceptually significant bits of parameter data at the beginning of the data packet. Following in the data packet are lesser perceptually significant bits of the same parameter data. Other parameter data then follows in the data packet. Interleaved in the data packet following the most perceptually significant bits at the beginning of the data packet are most perceptually significant bits of other parameter data. A parity check code is computed from the most perceptually significant bits in the data packet and also interleaved in the data packet following the most perceptually significant bits at the beginning of the data packet.

Abstract translation: 一种方法和系统（16），通过该方法和系统（16），将表示声码语音的参数数据组织成用于传输的数据分组，以便减少传输信道引起的错误对数据分组的影响。 数据包在数据包的开头被构造成具有某些最感知有效的参数数据位。 在数据包中的以下是相同参数数据的较小的感知有效位。 其他参数数据随后在数据包中。 在数据包开头的最感知有效位之后的数据包中交织是其他参数数据的最感知有效位。 从数据分组中最感知有效位计算奇偶校验码，并且在数据分组的开始处跟随最感知有效位之后的数据分组中交织。

公开(公告)号：WO1993007702A1

公开(公告)日：1993-04-15

申请号：PCT/US1992008613

申请日：1992-10-08

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  WHEATLEY, Charles, E.

IPC: H04L27/30

CPC classification number: H04W52/52 ,  H04W52/0245 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/40 ,  Y02D70/00

Abstract: A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell-site (12, 14) using code division multiple access spread spectrum communication signals. The power control system controls transmission signal power for each cellular mobile telephone (16, 18) in the cellular mobile telephone system wherein each cellular mobile telephone has an antenna (70), transmitter (84) and receiver (72, 74) and each cell-site also has an antenna (52), transmitter (62) and receiver (54, 56). The signal power of cell-site (12, 14) transmitted signals is measured as received at the mobile unit (16, 18). Transmitter power is adjusted at the mobile unit (16, 18) in an opposite manner with respect to increases and decreases in received signal power. A power control feedback scheme may also be utilized. At the cell-site (12, 14) in communication with the mobile unit (16, 18), the signal power of mobile unit (16, 18) transmitted signals is measured as received at the cell-site (12, 14). A command signal is generated at the cell-site (12, 14) and transmitted to the mobile unit (16, 18) for further adjusting mobile unit transmitter power corresponding to deviations in the cell-site (12, 14) received signal power. The feedback scheme is used to further adjust the mobile unit (16, 18) transmitter power so that mobile unit (16, 18) transmitted signals arrive at the cell-site (12, 14) at a desired power level.

Abstract translation: 一种用于蜂窝移动电话系统的功率控制系统，其中系统用户使用码分多址扩频通信信号经由至少一个小区站点（12,14）在彼此之间传送信息信号。 功率控制系统控制蜂窝移动电话系统中每个蜂窝移动电话（16,18）的传输信号功率，其中每个蜂窝移动电话具有天线（70），发射机（84）和接收机（72,74）以及每个小区 现场还具有天线（52），发射机（62）和接收机（54,56）。 单元（12,14）发送信号的信号功率在移动单元（16,18）处被接收到。 相对于接收信号功率的增加和减小，以移动单元（16,18）调整发射机功率。 还可以使用功率控制反馈方案。 在与移动单元（16,18）通信的小区站点（12,14）处，测量在小区站点（12,14）处接收到的发送信号的移动单元（16,18）的信号功率。 在小区站点（12,14）处生成指令信号并发送到移动单元（16,18），用于进一步调整与小区（12,14）接收信号功率的偏差相对应的移动单元发射机功率。 反馈方案用于进一步调整移动单元（16,18）发射机功率，使得移动单元（16,18）发射的信号以期望的功率电平到达小区站点（12,14）。

公开(公告)号：WO1992020162A2

公开(公告)日：1992-11-12

申请号：PCT/US1992003656

申请日：1992-05-01

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  WOLF, Jack, Keil

IPC: H03M13/00

CPC classification number: H03M13/256 ,  H03M13/25 ,  H03M13/41 ,  H04L27/186

Abstract: A codec for resolving transmission phase ambiguities in the M-ary PSK modulation of trellis coded data. A trellis encoder (10) uses a differential encoder (22) and a convolutional encoder (24), along with multiplexed differential encoders (18, 20), to generate from sets of input data bits corresponding phase point values for use in M-ary PSK carrier modulation (12). A trellis decoder (32) uses a Viterbi decoder (40) and a differential decoder (50), along with multiplexed differential decoders (46, 48), to produce estimates of the original input data bits from the received signal sector value.

公开(公告)号：WO1992007424A1

公开(公告)日：1992-04-30

申请号：PCT/US1991007702

申请日：1991-10-15

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  WHEATLEY, Charles, E., III

IPC: H03G03/30

CPC classification number: H03G1/04 ,  H03G3/3036

Abstract: An amplification circuit having a compensation circuit (10) for receiving a control signal and generating a corresponding compensation signal according to predetermined compensation characteristics. An input amplification circuit (12) is provided for, receiving an input signal and the compensation signal, amplifying the input signal at an input gain level determined by the compensation signal and providing a corresponding input amplification circuit output signal. A filter element (14) receives and filters unwanted frequency components from the input amplification circuit output signal. An output amplification circuit (16) is provided for, receiving the filtered input amplification circuit output signal and the compensation signal, amplifying the filtered input amplification circuit output signal at an output gain level determined by the compensation signal and providing a corresponding output amplification circuit output signal.

公开(公告)号：WO2001057950A1

公开(公告)日：2001-08-09

申请号：PCT/US2001003990

申请日：2001-02-07

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  WALLACE, Raymond, C. ,  DRAXLER, Paul, J.

IPC: H01Q1/22

CPC classification number: H01Q23/00 ,  H01Q9/16

Abstract: An efficient radio communications device. The device includes a computer and a balanced antenna system that delivers electromagnetic energy to and from the computer via a radio section. The radio section is connected to the computer and the antenna feed and interfaces the antenna system to the computer to facilitate electrical communication between the computer and the antenna system. The balanced antenna system includes an antenna feed for extending radiating elements of the antenna system from the computer to reduce electrical coupling and interference between the computer and electromagnetic energy radiated or received by the antenna system. The antenna system includes a ballun that interfaces the antenna feed to the radio section. In an alternative embodiment, the balun interfaces the antenna radiating elements to the antenna feed. The balun is a lumped or discrete element balun or a bazooka balun. The antenna feed includes a coaxial transmission line. The balanced antenna system includes a dipole antenna. The dipole antenna has approximately symmetrical radiating elements oriented in opposing directions. The radio section includes a transceiver and a duplexer that is connected between the antenna system and the transceiver and facilitates the sharing of antenna system resources between transmit and receive functions.

Abstract translation: 一种高效的无线电通信设备。 该装置包括计算机和平衡天线系统，其通过无线电部分向计算机提供电磁能量和从计算机传送电磁能量。 无线电部分连接到计算机，天线馈送并将天线系统连接到计算机，以便于计算机和天线系统之间的电气通信。 平衡天线系统包括用于从计算机延伸天线系统的辐射元件的天线馈电，以减少计算机与由天线系统辐射或接收的电磁能之间的电耦合和干扰。 天线系统包括将天线馈电连接到无线电部分的气球。 在替代实施例中，平衡 - 不平衡变换器将天线辐射元件接合到天线馈送。 平衡 - 不平衡变换器是集中或分立元件平衡 - 不平衡转换器或火箭筒平衡 - 不平衡转换器。 天线馈电包括同轴传输线。 平衡天线系统包括偶极天线。 偶极天线具有相对方向定向的大致对称的辐射元件。 无线电部分包括收发器和双工器，其连接在天线系统和收发器之间，并且有助于在发射和接收功能之间共享天线系统资源。

公开(公告)号：WO1999029047A1

公开(公告)日：1999-06-10

申请号：PCT/US1997016270

申请日：1997-09-30

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  HUTCHISON, James, A., IV ,  WIECK, Chris, P.

IPC: H04B07/005

CPC classification number: H04W52/52 ,  H03F2203/7239

Abstract: 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 (1702). The receive signal power is controlled by enabling or disabling the LNA in response to the measured received signal power (1704). The received power level is periodically compared to a threshold (1704). When the received power level is greater than the threshold, the LNA is disabled (1706). The LNA is re-enabled when the received power level is less than the threshold (1708), and there are no significant intermodulation components detected (1710). The intermodulation components are detected by briefly enabling the LNA and detecting the resultant change in the measured signal power (1710). If the detected change is more than a predetermined amount, then there are significant intermodulation components present, and the LNA is not re-enabled (1706). Otherwise, there are not significant intermodulation components present, and the LNA is re-enabled (1702).

Abstract translation: 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。 电路具有放大接收信号的LNA（1702）。 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（1704）。 接收功率电平与阈值（1704）周期性地进行比较。 当接收功率电平大于阈值时，LNA被禁用（1706）。 当接收功率电平小于阈值（1708）时，LNA被重新使能，并且没有检测到显着的互调分量（1710）。 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（1710）。 如果检测到的改变大于预定量，则存在显着的互调分量，并且LNA不被重新启用（1706）。 否则，不存在显着的互调分量，并且重新启用LNA（1702）。

公开(公告)号：WO1998032263A2

公开(公告)日：1998-07-23

申请号：PCT/US1997023651

申请日：1997-12-19

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  ODENWALDER, Joseph, P. ,  ANTONIO, Franklin, P. ,  TIEDEMANN, Edward, G., Jr. ,  JOU, Yu-Cheun

IPC: H04L12/00

CPC classification number: H04B1/707 ,  H04B7/264 ,  H04J13/0003 ,  H04J13/0048 ,  H04L1/0041 ,  H04L1/0059 ,  H04L1/0067 ,  H04L1/08 ,  H04L2001/0093

Abstract: A novel and improved method for implementing a high-transmission-rate over-the-air interface is described. A transmit system provides an in-phase channel set (90) and a quadrature-phase channel set (92). The in-phase channel set (90) is used to provide a complete set of orthogonal medium rate control and traffic channels. The quadrature-phase channel (92) set is used to provide a high-rate supplemental channel and an extended set of medium rate channels that are orthogonal to each other and the original medium rate channels. The high-rate supplemental channel is generated over a set of medium rate channels using a short channel code. The medium rate channel are generated using a set of long channel codes.

Abstract translation: 描述了一种用于实现高速率空中接口的新颖和改进的方法。 发射系统提供同相信道集（90）和正交相位信道集合（92）。 同相信道集（90）用于提供一组完整的正交媒体速率控制和业务信道。 正交相位信道（92）集合用于提供彼此正交的原始中等速率信道的高速率补充信道和扩展的中等速率信道集合。 使用短信道码在一组中等速率信道上生成高速率补充信道。 中频率信道是使用一组长信道码产生的。