公开(公告)号：CA2733205A1

公开(公告)日：2006-04-06

申请号：CA2733205

申请日：2005-09-12

Applicant: MOTOROLA INC

Inventor： LUZ YUDA Y ,  CROCKER RONALD T ,  HARRIS JOHN M

IPC: H04W12/00 ,  H04W12/02 ,  H04W12/04

Abstract: A communication device (202) converts a bit stream to multiple symbols and provides encryption at a physical layer by shifting a phase of each symbol of the multiple symbols to produce multiple encrypted symbols. Each encrypted symbol of the multiple encrypted symbols is modulated with an orthogonal (214) subcarrier to produce at least one modulated subcarrier and the at least one modulated subcarrier is then transmitted (278) via a wireless link. On a receive side (260), a receiving (260) communication device (250) receives the transmitted (230), encrypted symbols and provides decryption at a physical layer by shifting a phase of each encrypted symbol in correspondence with the phase (234) used to encrypt the symbol at the transmit side.

公开(公告)号：DE19782040T1

公开(公告)日：1999-09-23

申请号：DE19782040

申请日：1997-09-05

Applicant: MOTOROLA INC

Inventor： SCHIEMENZ ARTHUR F ,  LUZ YUDA Y ,  ANDERSON DALE R ,  JALLOUL LOUAY A

IPC: H03F3/68 ,  H03F3/60 ,  H04B1/04

Abstract: In a hybrid matrix amplifier array (100), a configurable digital transform matrix (116) is initialize with a matrix of transform coefficients. A plurality of digital input signals (M1-M4) are received at inputs of the configurable digital transform matrix (116). The plurality of digital input signals are transformed to produce a plurality of transform digital signals (A1-A4) using the matrix of transform coefficients. The plurality of transform digital signals are converted to a plurality of transformed analoged signals (206) to produce a plurality of transformed analog signals. The transformed analog signals are amplified (104, 208) to produce amplified transformed signals. Finally, the amplified transformed signals are inverse transformed (102, 210) to produce output signals that correspond to a respective digital input signal (M1-M4). Upon sensing a failure in an amplifier array (104,126) a controller (128) recalls matrix transform coefficients from a memory (130) and write and reconfigures the digital transform matrix (116) to minimize the effects of the amplifier failure at the hybrid matrix amplifier outputs (132).

公开(公告)号：MX2007003452A

公开(公告)日：2007-10-10

申请号：MX2007003452

申请日：2005-09-12

Applicant: MOTOROLA INC

Inventor： HARRIS JOHN M ,  LUZ YUDA Y ,  CROCKER RONALD T

IPC: H04B1/00

Abstract: Un aparato de comunicacion (202) que convierte una corriente de bits a simbolos multiples y proporciona encriptacion en una capa fisica alternando una fase de cada simbolo de los simbolos multiples, para producir simbolos encriptados multiples. Cada simbolo encriptado de los simbolos encriptados multiples, se modulan con un subtransportador ortogonal (214) para producir al menos un subtransportador modulado y al menos un subtransportador modulado es transmitido (278) posteriormente a traves de un enlace inalambrico. En una parte de recepcion (260), un aparato de comunicacion de recepcion (250) recibe los simbolos encriptados, transmitidos (230) y proporciona desencriptacion en una capa fisica alternando una fase de cada simbolo encriptado en correspondencia con la fase (234) utilizada para encriptar el simbolo en la parte de transmision.

公开(公告)号：DE69737734D1

公开(公告)日：2007-06-28

申请号：DE69737734

申请日：1997-01-15

Applicant: MOTOROLA INC

Inventor： LUREY DANIEL M ,  LUZ YUDA Y ,  RADER SHEILA M ,  ROTTINGHAUS ALAN P

IPC: H03D7/00 ,  H04L25/08 ,  H01Q1/24 ,  H01Q3/26 ,  H03B28/00 ,  H03C1/00 ,  H03C3/00 ,  H03D7/16 ,  H04B1/04 ,  H04B1/16 ,  H04B1/26 ,  H04B1/28 ,  H04B1/38 ,  H04B1/40 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04B7/185 ,  H04B7/24 ,  H04B7/26 ,  H04L1/06 ,  H04L1/22 ,  H04L27/20 ,  H04W4/18 ,  H04W88/06

Abstract: Generally stated, an apparatus and method for routing a digitized radio frequency (RF) signal 140-143 to a plurality of paths is described herein. In accordance with a first preferred embodiment, the apparatus comprises a digital upconverter/modulator (DUC) 125, 129 coupled to a scaling and switching network 100N which is comprised of, at minimum, a first, second, third and fourth digital switch, and a first, second and third adder. Within the scaling and switching network 100N, the first digital switch is responsive to the DUC 125,129. The first adder is responsive to the first and second digital switches, while the second adder is responsive to the third and fourth digital switches. Finally, the third adder is responsive to the first and second adders.

公开(公告)号：AU2003254318A8

公开(公告)日：2004-02-23

申请号：AU2003254318

申请日：2003-08-01

Applicant: MOTOROLA INC

Inventor： DECLERCK DAN ,  LUZ YUDA Y ,  TENBROOK KEITH

IPC: H04W36/14 ,  H04Q7/00

公开(公告)号：FI990786A0

公开(公告)日：1999-04-09

申请号：FI990786

申请日：1999-04-09

Applicant: MOTOROLA INC

Inventor： SCHIEMENZ ARTHUR F ,  LUZ YUDA Y ,  ANDERSON DALE R ,  JALLOUL LOUAY A

IPC: H03F3/60 ,  H03F3/68 ,  H04B1/04 ,  H03F

Abstract: In a hybrid matrix amplifier array (100), a configurable digital transform matrix (116) is initialize with a matrix of transform coefficients. A plurality of digital input signals (M1-M4) are received at inputs of the configurable digital transform matrix (116). The plurality of digital input signals are transformed to produce a plurality of transform digital signals (A1-A4) using the matrix of transform coefficients. The plurality of transform digital signals are converted to a plurality of transformed analoged signals (206) to produce a plurality of transformed analog signals. The transformed analog signals are amplified (104, 208) to produce amplified transformed signals. Finally, the amplified transformed signals are inverse transformed (102, 210) to produce output signals that correspond to a respective digital input signal (M1-M4). Upon sensing a failure in an amplifier array (104,126) a controller (128) recalls matrix transform coefficients from a memory (130) and write and reconfigures the digital transform matrix (116) to minimize the effects of the amplifier failure at the hybrid matrix amplifier outputs (132).

公开(公告)号：CA2580106C

公开(公告)日：2013-11-12

申请号：CA2580106

申请日：2005-09-12

Applicant: MOTOROLA INC

Inventor： LUZ YUDA Y ,  CROCKER RONALD T ,  HARRIS JOHN M

IPC: H04W12/00 ,  H04W12/02

Abstract: A communication device (202) converts a bit stream to multiple symbols and provides encryption at a physical layer by shifting a phase of each symbol of the multiple symbols to produce multiple encrypted symbols. Each encrypted symbol of the multiple encrypted symbols is modulated with an orthogonal (214) subcarrier to produce at least one modulated subcarrier and the at least one modulated subcarrier is then transmitted (278) via a wireless link. On a receive side (260), a receiving (260) communication device (250) receives the transmitted (230), encrypted symbols and provides decryption at a physical layer by shifting a phase of each encrypted symbol in correspondence with the phase (234) used to encrypt the symbol at the transmit side.

公开(公告)号：CA2580106A1

公开(公告)日：2006-04-06

申请号：CA2580106

申请日：2005-09-12

Applicant: MOTOROLA INC

Inventor： HARRIS JOHN M ,  LUZ YUDA Y ,  CROCKER RONALD T

IPC: H04B1/69

Abstract: A communication device converts a bit stream to multiple symbols and provides encryption at a physical layer by shifting a phase of each symbol of the multiple symbols to produce multiple encrypted symbols. Each encrypted symbol of the multiple encrypted symbols is modulated with an orthogonal subcarrier to produce at least one modulated subcarrier and the at least one modulated subcarrier is then transmitted via a wireless link. On a receive side, a receiving communication device receives the transmitted, encrypted symbols and provides decryption at a physical layer by shifting a phase of each encrypted symbol in correspondence with the phase used to encrypt the symbol at the transmit side.

公开(公告)号：SE9603102D0

公开(公告)日：1996-08-28

申请号：SE9603102

申请日：1996-08-28

Applicant: MOTOROLA INC

Inventor： SMITH PAUL F ,  SMITH JOHN M ,  ROTTINGHAUS ALAN P ,  RADER SHELIA M ,  PINCKLEY DANNY T ,  LUZ YUDA Y ,  LUREY DANIEL M ,  LAIRD KEVIN M ,  KOBRINETZ TONY ,  ELDER ROBERT C ,  BAILEY DONALD E

IPC: H03D7/00 ,  H01Q1/24 ,  H01Q3/26 ,  H03B28/00 ,  H03C1/00 ,  H03C3/00 ,  H03D7/16 ,  H04B1/04 ,  H04B1/16 ,  H04B1/26 ,  H04B1/28 ,  H04B1/38 ,  H04B1/40 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04B7/185 ,  H04B7/24 ,  H04L1/06 ,  H04L1/22 ,  H04L27/20 ,  H04W4/18 ,  H04W88/06 ,  H04B

Abstract: A multi-channel digital transceiver (400) receives uplink radio frequency signals and converts these signals to digital intermediate frequency signals. Digital signal processing, including a digital converter module (426), is employed to select digital intermediate frequency signals received at a plurality of antennas (412) and to convert these signals to baseband signals. The baseband signals are processed to recover a communication channel therefrom. Downlink baseband signals are also processed and digital signal processing within the digital converter module (426) up converters and modulates the downlink baseband signals to digital intermediate frequency signals. The digital intermediate frequency signals are converted to analog radio frequency signals, amplified and radiated from transmit antennas (420).

公开(公告)号：WO2004014011A3

公开(公告)日：2004-06-17

申请号：PCT/US0324450

申请日：2003-08-01

Applicant: MOTOROLA INC

Inventor： LUZ YUDA Y ,  TENBROOK KEITH ,  DECLERCK DAN

IPC: H04W36/14 ,  H04Q7/00

CPC classification number: H04W36/0066 ,  H04W36/30

Abstract: A method (700) and a base station controller (120) for operating in accordance with a wireless communication protocol are described herein. In a wireless communication system (100), the base station controller (120) may detect that the mobile station (160) is operable in accordance with the wireless communication protocol based on information associated with the mobile station. In response to detecting at least one of condition of the system (100) suggesting a potential for improved system performance, the base station controller (120) may transmit a handoff message from the first base station (140) to the mobile station (160). The handoff message may notify the mobile station (160) to operate in accordance with the wireless communication protocol.

Abstract translation: 这里描述了根据无线通信协议操作的方法（700）和基站控制器（120）。 在无线通信系统（100）中，基站控制器（120）可以基于与移动台相关联的信息来检测移动台（160）能够根据无线通信协议进行操作。 响应于检测到系统（100）的条件中的至少一个提示改善系统性能的潜力，基站控制器（120）可以从第一基站（140）向移动台（160）发送切换消息， 。 切换消息可以通知移动台（160）根据无线通信协议进行操作。