公开(公告)号：JPH1079722A

公开(公告)日：1998-03-24

申请号：JP18556697

申请日：1997-07-10

Applicant: LUCENT TECHNOLOGIES INC

Inventor： I CHIH-LIN ,  PARTYKA ANDRZEJ ,  WEBB CHARLES ALBERT III

IPC: H04B1/7085 ,  H04B1/709 ,  H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04L7/00 ,  H04J13/04

Abstract: PROBLEM TO BE SOLVED: To provide a multicode code division multiple access(MC-CDMA) receiver where number of circuits to process data channels is not increased and increase in power consumption at a transmitter-receiver is suppressed even when number of data channels used for the MC-CDMA system is increased. SOLUTION: The manufacturing cost and the power consumption of the MC-CDMA receiver that receives N sets of coding signal channels via a plurality of space paths are reduced. In this MC-CDMA receiver especially, when a synchronization (1st type) correlation means recovers a synchronizing signal and a control section from a data signal received via any signal path, each of N-sets of data (2nd type) correlation means uses the synchronizing signal and the control signal to decode any of N-sets of data signal channels received via a space path and applies inverse spread spectrum processing to the decoded signal.

公开(公告)号：CA2205818C

公开(公告)日：2001-10-09

申请号：CA2205818

申请日：1997-05-22

Applicant: LUCENT TECHNOLOGIES INC

Inventor： WEBB CHARLES ALBERT III ,  I CHIH-LIN ,  PARTYKA ANDRZEJ

IPC: H04B1/7085 ,  H04B1/709 ,  H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04L7/00 ,  H04J13/02 ,  H04B7/216 ,  H04B1/69

Abstract: A Multi-Code (MC) Code Division Multiple Access (CDMA) receiver receives N (where N>1) encoded signal channels over multiple air signal p aths. In the MC-CDMA receiver, once a timing correlator means has recovered the timing and control signals for the data signal received over any particular signal path, those timing and control signals are utilized by each of the N data (second type) correlator means for decoding and despreading an associated one of the N data signal channels received over that path.

公开(公告)号：BR9704663A

公开(公告)日：1999-03-16

申请号：BR9704663

申请日：1997-09-08

Applicant: LUCENT TECHNOLOGIES INC

Inventor： PARTYKA ANDRZEJ

IPC: H03L7/08 ,  H03L7/089 ,  H04B1/16

Abstract: An improved control voltage generator for use with a voltage-controlled oscillator (VCO), so as to enable VCO operation at low supply voltages of less than three volts, includes a phase comparator (105), a charge pump (115), a switched voltage multiplier (109), and a control voltage filter. The output voltage (108) of the phase detector is coupled to a sampling terminal of the charge pump, a power supply terminal (121) of the charge pump is coupled to an output terminal (113) of the switched voltage multiplier, and a voltage input terminal (107) of the switched voltage multiplier is coupled to a first, reference signal. The charge pump (115), powered from the power supply terminal (121), generates a waveform including a plurality of pulses. Each of the plurality of pulses has a time duration substantially proportional to the voltage present at the sampling terminal. These pulses may be used as a VCO control voltage, or alternatively, a control voltage filter, coupled to the charge pump, may be used to transform the pulses into a VCO control voltage having desired characteristics.

公开(公告)号：CA2205818A1

公开(公告)日：1998-01-12

申请号：CA2205818

申请日：1997-05-22

Applicant: LUCENT TECHNOLOGIES INC

Inventor： PARTYKA ANDRZEJ ,  I CHIH-LIN ,  WEBB CHARLES ALBERT III

IPC: H04B1/7085 ,  H04B1/709 ,  H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04L7/00 ,  H04J13/02 ,  H04B7/216 ,  H04B1/69

Abstract: A Multi-Code (MC) Code Division Multiple Access (CDMA) receiver receives N (where N>1) encoded signal channels over multiple air signal paths. In the MC-CDMA receiver, once a timing correlator means has recovered the timing and control signals for the data signal received over any particular sign al path, those timing and control signals are utilized by each of the N data (second type) correlator means for decoding and despreading an associated one of the N data signal channels received over that path.

公开(公告)号：MX9706858A

公开(公告)日：1998-07-31

申请号：MX9706858

申请日：1997-09-09

Applicant: LUCENT TECHNOLOGIES INC

Inventor： PARTYKA ANDRZEJ

IPC: H03L7/08 ,  H03L7/089 ,  H02M01/00

Abstract: La presente invencion se refiere a un generador de voltaje de control mejorado para utilizar con un oscilador controlado de voltaje (VCO), para permitir la operacion VCO a bajos voltajes de suministro inferiores a 3 volts. El generador de control incluye un comparador de fase, una bomba de carga, un multiplicador de voltaje conmutado, y un filtro de voltaje de control. El voltaje de salida del detector de fase se acopla a una terminal de muestreado de la bomba de carga, una terminal de suministro de energía de la bomba de carga se acopla a una terminal de salida de un multiplicador de voltaje conmutado, y una terminal de alimentacion de voltaje del multiplicador de voltaje conmutado se acopla a una primer señal de referencia. La bomba de carga, energizada desde la terminal de suministro de energía, genera una forma de onda que incluye una pluralidad de pulsos. Cada uno de la pluralidad de pulsos tiene una duracion de tiempo substancialmente proporcional la voltaje presente en la terminal de muestreo. Estos pulsos pueden emplearse como un voltaje de control VCO o en forma alterna un filtro de voltaje de control acoplado a la bomba de carga, puede emplearse para transformar los pulsos en un voltaje de control VCO que tiene las características deseadas.

公开(公告)号：EP0814569A1

公开(公告)日：1997-12-29

申请号：EP97303991

申请日：1997-06-09

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ABRAMSKY VICTOR A ,  PARTYKA ANDRZEJ

IPC: H03G3/30 ,  H04B1/10 ,  H03G3/20

CPC classification number: H03G3/3068 ,  H04B1/109

Abstract: An improved radio receiver includes a variable attenuator (107), an RF signal amplifier (111), and a controller (135) which controls the amount of attenuation provided by the variable attenuator in response to signals received by the RF signal amplifier. The controller adjusts the variable attenuator to achieve a minimum symbol error rate and/or to maximize the signal-to-noise and interference ratio for a desired signal, irrespective of the levels of any interfering signals received by the RF signal amplifier. In this manner, the variable attenuator is adjusted to obtain just the right amount of intermodulation performance for a given set of receiving conditions. This technique saves operating current and minimizes noise figure because, in practice, interference conditions do not persist all of the time, and are usually of temporary duration.

Abstract translation: 改进的无线电接收机包括可变衰减器（107），RF信号放大器（111）和控制器（135），该控制器控制由可变衰减器响应于由RF信号放大器接收的信号而提供的衰减量。 无论RF信号放大器接收的任何干扰信号的电平如何，控制器调整可变衰减器以实现最小符号错误率和/或最大化所需信号的信噪比和干扰比。 以这种方式，调整可变衰减器以获得对于给定的一组接收条件恰恰适当的互调性能量。 这种技术可以节省工作电流并最大程度地降低噪声系数，因为在实践中，干扰条件并不总是持续存在，通常是暂时的。

公开(公告)号：EP0814568A1

公开(公告)日：1997-12-29

申请号：EP97303974

申请日：1997-06-09

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ABRAMSKY VICTOR A ,  PARTYKA ANDRZEJ

IPC: H03G3/30 ,  H04B1/10 ,  H04B1/12 ,  H04B7/26

CPC classification number: H04B1/109 ,  H03G3/3068

Abstract: An improved radio receiver includes two variable attenuators (107,117), a variable-current RF signal amplifier (111), and a controller (135) which controls the amount of attenuation provided by the variable attenuators, and/or the current (via 113) consumed by the variable-current RF signal amplifier, in response to signals received by the RF signal amplifier. The controller adjusts the variable attenuators, and/or the RF signal amplifier, to achieve a minimum symbol error rate and/or to maximize the signal-to-noise and interference ratio for a desired signal, irrespective of the levels of any interfering signals received by the RF signal amplifier. In this manner, the variable attenuators, and/or the variable current RF signal amplifier, are adjusted to obtain just the right amount of intermodulation performance for a given set of receiving conditions. This technique saves operating current and minimizes noise figure because, in practice, interference conditions do not persist all of the time, and are usually of temporary duration.

Abstract translation: 一种改进的无线电接收机包括两个可变衰减器（107,117），可变电流RF信号放大器（111）和控制由可变衰减器提供的衰减量的控制器（135）和/或电流（经由113） 由可变电流RF信号放大器消耗，响应于由RF信号放大器接收的信号。 控制器调整可变衰减器和/或RF信号放大器以实现最小符号错误率和/或最大化期望信号的信噪比和干扰比，而不管接收到的任何干扰信号的电平如何 由RF信号放大器。 以这种方式，调整可变衰减器和/或可变电流RF信号放大器，以便为给定的一组接收条件仅获得正确的互调性能量。 这种技术可以节省工作电流并最大程度地降低噪声系数，因为在实践中，干扰条件并不总是持续存在，通常是暂时的。