公开(公告)号：GB2301990A

公开(公告)日：1996-12-18

申请号：GB9617716

申请日：1995-12-05

Applicant: MOTOROLA INC

Inventor： SMITH PAUL FIELDING ,  SMITH JOHN M ,  ROTTINGHAUS ALAN P ,  RADER SHELIA MARIE ,  PINCKLEY DANNY THOMAS ,  LUZ YUDA YEHUDA ,  LUREY DANIEL MORRIS ,  LAIRD KEVIN MICHAEL ,  KOBRINETZ TONY ,  ELDER ROBERT ,  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 ,  H04Q7/30

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 converts 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：TR9501721A1

公开(公告)日：1996-10-21

申请号：TR9501721

申请日：1995-12-29

Applicant: MOTOROLA INC

Inventor： SMITH PAUL FIELDING ,  SMITH JOHN M ,  ROTTINGHAUS ALAN P ,  RADER SHELIA MARIE ,  PINCKLEY DANNY THOMAS ,  LUZ YUDA YEHUDA ,  LUREY DANIEL MORRIS ,  LAIRD KEVIN MICHAEL ,  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

CPC classification number: H04B7/0691 ,  H01Q1/246 ,  H01Q3/2605 ,  H03B28/00 ,  H03C1/00 ,  H03C3/00 ,  H03D7/165 ,  H04B1/0003 ,  H04B1/001 ,  H04B1/0017 ,  H04B1/0021 ,  H04B1/0483 ,  H04B1/16 ,  H04B1/26 ,  H04B1/28 ,  H04B1/38 ,  H04B1/40 ,  H04B7/04 ,  H04B7/06 ,  H04B7/0802 ,  H04B7/0874 ,  H04B7/18515 ,  H04B7/24 ,  H04L1/06 ,  H04L1/22 ,  H04W4/18 ,  H04W88/06

公开(公告)号：TR199501721A1

公开(公告)日：1996-10-21

申请号：TR9501721

申请日：1995-12-29

Applicant: MOTOROLA INC

Inventor： SMITH PAUL FIELDING ,  SMITH JOHN M ,  ROTTINGHAUS ALAN P ,  RADER SHELIA MARIE ,  PINCKLEY DANNY THOMAS ,  LUZ YUDA YEHUDA ,  LUREY DANIEL MORRIS ,  LAIRD KEVIN MICHAEL ,  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：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：IE69267B1

公开(公告)日：1996-08-21

申请号：IE214689

申请日：1989-07-03

Applicant: MOTOROLA INC

Inventor： SMITH JOHN M ,  LONG JAMES F ,  WANAT RONALD J ,  KOBRINETZ ANTHONY

IPC: C07K20060101 ,  H04B7/26 ,  H04H20/81 ,  H04M20060101 ,  H04W88/08 ,  H04Q7/04

公开(公告)号：FR2729026A1

公开(公告)日：1996-07-05

申请号：FR9513455

申请日：1995-11-14

Applicant: MOTOROLA INC

Inventor： SMITH PAUL FIELDING ,  SMITH JOHN M ,  ROTTINGHAUS ALAN P ,  RADER SHELIA MARIE ,  PINCKLEY DANNY THOMAS ,  LUZ YUDA YEHUDA ,  LUREY DANIEL MORRIS ,  LAIRD KEVIN M ,  KOBRINETZ TONY ,  ELDER ROBERT C

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 ,  H04Q7/20

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 converts 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：DE68923509T2

公开(公告)日：1996-03-07

申请号：DE68923509

申请日：1989-09-12

Applicant: MOTOROLA INC

Inventor： SMITH JOHN M ,  LONG JAMES F ,  WANAT RONALD J ,  KOBRINETZ ANTHONY

IPC: H04B7/26 ,  H04W16/24 ,  H04W88/08 ,  H04Q7/22

Abstract: Cellular radiotelephone communication system cell site equipment has a radio frequency transmitter (240) operating as one signal frequency source and a first and a second signal combiner device (282) tuned to a first and a second signal frequency, respectively, each signal combiner device (282) having resonant cavity means for isolating a signal frequency source from other signal frequency sources. Each signal combiner device (282) has coupling means (210) for coupling the isolated signal frequency source to a respective common transmitter output. The system further comprises a radio frequency switching means (230), operatively coupled to the radio frequency transmitter (240), the first signal combiner device (282) and the second signal combiner device (282), for coupling the radio frequency transmitter (240) to either of the first and the second signal combiner devices (282).

公开(公告)号：DE68923509D1

公开(公告)日：1995-08-24

申请号：DE68923509

申请日：1989-09-12

Applicant: MOTOROLA INC

Inventor： SMITH JOHN M ,  LONG JAMES F ,  WANAT RONALD J ,  KOBRINETZ ANTHONY

IPC: H04B7/26 ,  H04W16/24 ,  H04W88/08 ,  H04Q7/22

Abstract: Cellular radiotelephone communication system cell site equipment has a radio frequency transmitter (240) operating as one signal frequency source and a first and a second signal combiner device (282) tuned to a first and a second signal frequency, respectively, each signal combiner device (282) having resonant cavity means for isolating a signal frequency source from other signal frequency sources. Each signal combiner device (282) has coupling means (210) for coupling the isolated signal frequency source to a respective common transmitter output. The system further comprises a radio frequency switching means (230), operatively coupled to the radio frequency transmitter (240), the first signal combiner device (282) and the second signal combiner device (282), for coupling the radio frequency transmitter (240) to either of the first and the second signal combiner devices (282).

公开(公告)号：FI115877B

公开(公告)日：2005-07-29

申请号：FI963346

申请日：1996-08-27

Applicant: MOTOROLA INC

Inventor： SMITH PAUL FIELDING ,  SMITH JOHN M ,  ROTTINGHAUS ALAN P ,  RADER SHEILA MARIE ,  PINCKLEY DANNY THOMAS ,  LUZ YUDA YEHUDA ,  LUREY DANIEL MORRIS ,  LAIRD KEVIN MICHAEL ,  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 ,  H04B7/02

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：CA2206311C

公开(公告)日：2003-11-11

申请号：CA2206311

申请日：1995-12-28

Applicant: MOTOROLA INC

Inventor： LUZ YUDA YEHUDA ,  LAIRD KEVIN MICHAEL ,  RADER SHEILA MARIE ,  LUREY DANIEL MORRIS ,  ROTTINGHAUS ALAN P ,  SMITH JOHN M ,  BAILEY DONALD E ,  SMITH PAUL FIELDING ,  ELDER ROBERT C ,  KOBRINETZ TONY ,  PINCKLEY DANNY THOMAS

IPC: H04L27/18 ,  H01Q1/24 ,  H01Q3/26 ,  H03D3/00 ,  H03M1/12 ,  H04B1/04 ,  H04B1/26 ,  H04B1/28 ,  H04B7/06 ,  H04B7/08 ,  H04B7/24 ,  H04J1/05 ,  H04L1/06 ,  H04L1/22 ,  H04L25/14 ,  H04L27/26 ,  H04W88/08 ,  H04B1/18 ,  H04L27/00

Abstract: A wideband multi-channel transmitter and receiver (transceiver) for cellul ar communication systems. The transceiver includes programmable digital down converters (DDCs) and programmable digital up converters (DUCs) providing a range of decimation/interpolation ratios to accommodate multiple access, i.e . AMPS, NAMPS, USDC, PDC, for varying signal formats and bandwidths. The method of digitizing a wideband frequency signal used by DDCs and DUCs has application to digitizing any wideband signal occupying continuous or discontinuous spectrum while reducing sampling frequency and hardware requirements. The arrangement of elements in the transceiver allows channel processing functions to be performed centrally, and transceiver functions to be performed at a communication cell site. The result is a savings to the operator by way of physical space required for equipment and in more centralized operati on and maintenance activities.