公开(公告)号：DE60331829D1

公开(公告)日：2010-05-06

申请号：DE60331829

申请日：2003-05-05

Applicant: MOTOROLA INC

Inventor： AHMED MANSOOR ,  ROHANI KAMYAR ,  LAIRD KEVIN M

IPC: H04J3/24 ,  H04L1/16 ,  H04B7/26 ,  H04L1/00 ,  H04L1/18 ,  H04L29/08 ,  H04Q7/38

Abstract: A method 600 of selecting an ARQ method for retransmitting a data frame based on an accumulated signal to noise ratio (SNR) of systematic bits in the data frame at a receiving unit 508. The sending unit 500 tracks the accumulated SNR of systematic bits by using channel SNR measurement reports sent by the receiving unit 508. The method utilizes Chase combining of re-transmitted systematic bits (via Partial incremental redundancy transmissions) until the accumulated SNR of the systematic bits has reached a suitable value, and then switches to sending only parity bits (via Full incremental redundancy) in retransmissions. In addition, the method alters the allocation of resources, such as code power, to provide only that necessary for successful decoding of the transmitted frame. The sending unit 500 informs the receiving unit 508 of the type of transmission, number of the transmission and/or resource allocation associated with the data frame.

公开(公告)号：FR2738429B1

公开(公告)日：2004-07-02

申请号：FR9610369

申请日：1996-08-22

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 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：FR2738428B1

公开(公告)日：2003-01-03

申请号：FR9610368

申请日：1996-08-22

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 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：FR2738429A1

公开(公告)日：1997-03-07

申请号：FR9610369

申请日：1996-08-22

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 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：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：AU6515201A

公开(公告)日：2001-12-11

申请号：AU6515201

申请日：2001-05-30

Applicant: MOTOROLA INC

Inventor： HARRISON ROBERT M ,  LAIRD KEVIN M ,  MYARA DAVID ,  BULJORE SOODESH

IPC: G01S3/74 ,  H01Q3/26 ,  H04B7/06 ,  H04B7/08 ,  H04B7/02 ,  G01S3/16 ,  G01S3/28 ,  H04B1/38

公开(公告)号：FR2729026B1

公开(公告)日：1997-07-25

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 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：FR2711883B1

公开(公告)日：1997-06-06

申请号：FR9412600

申请日：1994-10-21

Applicant: MOTOROLA INC

Inventor： BATTIN JOHN W ,  LYNK CHARLES N JR ,  LAIRD KEVIN M

IPC: H04B7/06 ,  G10L19/00 ,  H04B7/26 ,  H04J3/16 ,  H04W88/18 ,  H04Q7/28

Abstract: A digital radiotelephone system employs vocoders to convert between analog speech and a digital format suitable for transmission via radio. Under most circumstances, the highest data rate is selected for optimum audio quality. When the system occupancy exceeds a particular threshold, as detected at the fixed site of the system, some or all of the vocoders are instructed to switch to a lower data rate to provide for an increase in the number of communication channels. Further, a portable subscriber unit may autonomously change its vocoder data rate depending upon the charge state of its battery.

公开(公告)号：FI953184A0

公开(公告)日：1995-06-27

申请号：FI953184

申请日：1995-06-27

Applicant: MOTOROLA INC

Inventor： BATTIN JOHN W ,  LYNK JR CHARLES N ,  LAIRD KEVIN M

IPC: H04B7/06 ,  G10L19/00 ,  H04B7/26 ,  H04J3/16 ,  H04W88/18 ,  H04B

Abstract: A digital radiotelephone system employs vocoders to convert between analog speech and a digital format suitable for transmission via radio. Under most circumstances, the highest data rate is selected for optimum audio quality. When the system occupancy exceeds a particular threshold, as detected at the fixed site of the system, some or all of the vocoders are instructed to switch to a lower data rate to provide for an increase in the number of communication channels. Further, a portable subscriber unit may autonomously change its vocoder data rate depending upon the charge state of its battery.