公开(公告)号：AU2001249558B2

公开(公告)日：2005-12-01

申请号：AU2001249558

申请日：2001-03-28

Applicant: INTERDIGITAL TECH CORP

Inventor： KAEWELL JOHN D

IPC: H04B1/7073 ,  H04B1/62 ,  H04B1/7097 ,  H04L27/00 ,  H04B001/707

Abstract: This Invention provides a method for reducing transmission errors by a user equipment (UE) when transmitting a communication signal, comprising the steps of: receiving an RF communication signal at said UE; analyzing said received signal for errors; generating a correction signal (119) based upon said analysis; and correcting said communication signal using said correction signal (119) prior to transmission of said communication signal from said UE.

公开(公告)号：AT289135T

公开(公告)日：2005-02-15

申请号：AT01922797

申请日：2001-03-28

Applicant: INTERDIGITAL TECH CORP

Inventor： KAEWELL JOHN D

IPC: H04B1/7073 ,  H04B1/62 ,  H04B1/7097 ,  H04L27/00 ,  H04B1/707

Abstract: This Invention provides a method for reducing transmission errors by a user equipment (UE) when transmitting a communication signal, comprising the steps of: receiving an RF communication signal at said UE; analyzing said received signal for errors; generating a correction signal (119) based upon said analysis; and correcting said communication signal using said correction signal (119) prior to transmission of said communication signal from said UE.

公开(公告)号：AU683683B2

公开(公告)日：1997-11-20

申请号：AU7401194

申请日：1994-07-21

Applicant: INTERDIGITAL TECH CORP

Inventor： COOLEY DAVID M ,  DIGIOVANNI JOSEPH J ,  KAEWELL JOHN D ,  KURTZ SCOTT D ,  LEMMO MARK A ,  REGENSBURG MICHAEL W ,  VESSAL DAVID ,  JOHNS ERIC

IPC: H04J3/00 ,  H04B1/16 ,  H04B7/24 ,  H04B7/26 ,  H04J3/06 ,  H04L5/26 ,  H04Q1/00 ,  H04W4/18 ,  H04W48/08 ,  H04W52/02 ,  H04W56/00 ,  H04W72/02 ,  H04W72/04 ,  H04W72/12 ,  H04W74/00 ,  H04W74/04 ,  H04W84/14 ,  H04W88/00 ,  H04W88/02 ,  H04W88/08 ,  H04W99/00 ,  H04Q7/20

Abstract: The present invention provides a method of minimizing synchronization delay in a radiotelephone system between a modular subscriber cluster communicating with a common base station, the modular subscriber cluster receiving repetitive time slots from the base station and having a plurality of frequency-agile modems, the method comprising the steps of: synchronizing a selected one of the modems to a selected time slot of the received time slots; generating a frame sync signal from said selected modem; and distributing said frame sync signal to remaining ones of the plurality of modems.

公开(公告)号：BR9407730A

公开(公告)日：1997-02-12

申请号：BR9407730

申请日：1994-07-21

Applicant: INTERDIGITAL TECH CORP

Inventor： COOLEY DAVID M ,  DIGIOVANNI JOSEPH J ,  KAEWELL JOHN D ,  KURTZ SCOTT D ,  LEMMO MARK A ,  REGENSBURG MICHAEL W ,  VESSAL DAVID ,  JOHNS ERIC

IPC: H04J3/00 ,  H04B1/16 ,  H04B7/24 ,  H04B7/26 ,  H04J3/06 ,  H04L5/26 ,  H04Q1/00 ,  H04W4/18 ,  H04W48/08 ,  H04W52/02 ,  H04W56/00 ,  H04W72/02 ,  H04W72/04 ,  H04W72/12 ,  H04W74/00 ,  H04W74/04 ,  H04W84/14 ,  H04W88/00 ,  H04W88/02 ,  H04W88/08 ,  H04W99/00 ,  H04Q7/20

Abstract: The present invention provides a method of minimizing synchronization delay in a radiotelephone system between a modular subscriber cluster communicating with a common base station, the modular subscriber cluster receiving repetitive time slots from the base station and having a plurality of frequency-agile modems, the method comprising the steps of: synchronizing a selected one of the modems to a selected time slot of the received time slots; generating a frame sync signal from said selected modem; and distributing said frame sync signal to remaining ones of the plurality of modems.

公开(公告)号：FI961444A0

公开(公告)日：1996-03-29

申请号：FI961444

申请日：1996-03-29

Applicant: INTERDIGITAL TECH CORP

Inventor： COOLEY DAVID M ,  KAEWELL JOHN D ,  LEMMO MARK A ,  VESSAL DAVID ,  DIGIOVANNI JOSEPH J ,  KURTZ SCOTT D ,  REGENSBURG MICHAEL W ,  JOHNS ERIC

IPC: H04B1/16 ,  H04J3/00 ,  H04B7/24 ,  H04B7/26 ,  H04J3/06 ,  H04L5/26 ,  H04Q1/00 ,  H04W4/18 ,  H04W48/08 ,  H04W52/02 ,  H04W56/00 ,  H04W72/02 ,  H04W72/04 ,  H04W72/12 ,  H04W74/00 ,  H04W74/04 ,  H04W84/14 ,  H04W88/00 ,  H04W88/02 ,  H04W88/08 ,  H04W99/00 ,  H04Q

Abstract: The present invention provides a method of minimizing synchronization delay in a radiotelephone system between a modular subscriber cluster communicating with a common base station, the modular subscriber cluster receiving repetitive time slots from the base station and having a plurality of frequency-agile modems, the method comprising the steps of: synchronizing a selected one of the modems to a selected time slot of the received time slots; generating a frame sync signal from said selected modem; and distributing said frame sync signal to remaining ones of the plurality of modems.

公开(公告)号：CA2172972A1

公开(公告)日：1995-04-06

申请号：CA2172972

申请日：1994-07-21

Applicant: INTERDIGITAL TECH CORP

Inventor： COOLEY DAVID M ,  DIGIOVANNI JOSEPH J ,  KAEWELL JOHN D ,  KURTZ SCOTT D ,  LEMMO MARK A ,  REGENSBURG MICHAEL W ,  VESSAL DAVID ,  JOHNS ERIC

IPC: H04J3/00 ,  H04B1/16 ,  H04B7/24 ,  H04B7/26 ,  H04J3/06 ,  H04L5/26 ,  H04Q1/00 ,  H04W4/18 ,  H04W48/08 ,  H04W52/02 ,  H04W56/00 ,  H04W72/02 ,  H04W72/04 ,  H04W72/12 ,  H04W74/00 ,  H04W74/04 ,  H04W84/14 ,  H04W88/00 ,  H04W88/02 ,  H04W88/08 ,  H04W99/00 ,  H04Q7/22 ,  H04M11/06

Abstract: A power-conserving time division multiple access (TDMA) radiotelephone syste m is disclosed in which a cluster of subscriber stations , remote from a base station, employs a common pool of frequency-agile modems each of which digitally synthesizes, on a time slot-by-t ime slot basis, the different channel-identifying intermediate needed to support communications between several of the subscriber stations and the base station. Power conservation is facilitated inter alia by controlling the assignment of modems to calls, mainta ining unassigned modems in a powered-down state and by controlling the number of c alls using the same time slot. Delay in assigning a powered-down modem to a call is eliminated by making available to all modems the highest quality synchronization information obtaine d by any of the active modems.

公开(公告)号：DK2259440T3

公开(公告)日：2012-08-20

申请号：DK79535998

申请日：1998-03-04

Applicant: INTERDIGITAL TECH CORP

Inventor： KAEWELL JOHN D

IPC: H04L25/02 ,  H03M13/00 ,  H03M13/41 ,  H04B1/707 ,  H04L1/00 ,  H04L1/08

公开(公告)号：DE60141923D1

公开(公告)日：2010-06-02

申请号：DE60141923

申请日：2001-03-28

Applicant: INTERDIGITAL TECH CORP

Inventor： KAEWELL JOHN D

IPC: H04B1/7073 ,  H04B1/62 ,  H04B1/7097 ,  H04L27/00

Abstract: This Invention provides a method for reducing transmission errors by a user equipment (UE) when transmitting a communication signal, comprising the steps of: receiving an RF communication signal at said UE; analyzing said received signal for errors; generating a correction signal (119) based upon said analysis; and correcting said communication signal using said correction signal (119) prior to transmission of said communication signal from said UE.

公开(公告)号：HK1114509A1

公开(公告)日：2008-10-31

申请号：HK08109926

申请日：2008-09-05

Applicant: INTERDIGITAL TECH CORP

Inventor： KAEWELL JOHN D

IPC: H03M20060101 ,  H03M13/00 ,  H03M13/41 ,  H04B1/707 ,  H04L20060101 ,  H04L1/00 ,  H04L1/08

Abstract: A communication system where the data rate of a given transmission has been encoded by a transmitter and is then used to adjust a plurality of convolutional decoders sharing common memory. The system uses common processing resources to provide up to four discrete channels having multi-rate convolutional error correction decoding resulting in a reduced silicon area and low power operation. The system is capable of supporting data communication at 8 kbps up to 64 kbps for high rate ISDN communication in receivers of both base station and consumer unit locations.

公开(公告)号：ES2300884T3

公开(公告)日：2008-06-16

申请号：ES05002617

申请日：2001-03-28

Applicant: INTERDIGITAL TECH CORP

Inventor： KAEWELL JOHN D

IPC: H04B1/7073 ,  H04B1/62 ,  H04B1/7097 ,  H04L27/00

Abstract: Método para reducir errores de transmisión por una estación base CDMA cuando transmite una señal de comunicación a una segunda unidad de comunicación, que incluye las etapas de: recibir una señal de comunicación RF originada de dicha segunda unidad de comunicación a dicha estación base; analizar los errores de dicha señal recibida; generar una señal de corrección basada en dicho análisis; y corregir dicha señal de comunicación usando dicha señal de corrección antes de la transmisión de dicha señal de comunicación desde dicha estación base a dicha segunda unidad de comunicación; filtrar dicha señal recibida para generar una señal filtrada usando una señal de ponderación; desmodular dicha señal recibida para generar valores de vía relativos para cada componente multivía en dicha señal recibida; y mezclar dichos valores de vía con dicha señal de corrección para generar dicha señal de ponderación; caracterizado por el hecho de que dicha fase de análisis incluye: despropagar dicha señal filtrada usando una señal piloto; llevar a cabo una decisión por hardware en dicha señal filtrada despropagada para generar salidas de símbolo; y determinar los conjugados complejos de dichas salidas de símbolo para generar dicha señal de corrección; donde dicha señal de corrección elimina los errores de fase relativos contenidos en los valores de vía.