公开(公告)号：DE69828589D1

公开(公告)日：2005-02-17

申请号：DE69828589

申请日：1998-03-11

Applicant: INTERDIGITAL TECH CORP

Inventor： MESECHER K ,  YANG RUI ,  CERDA RAMON

IPC: H04L27/22 ,  H04B1/707 ,  H04B1/7085 ,  H04B1/7117 ,  H04B7/216 ,  H04L27/00 ,  H04L27/233

Abstract: A receiver for receiving a CDMA communication signal that is wirelessly transmitted includes a system for correcting phase errors in an information signal which has been transmitted. The correction system comprises circuitry for generating a mixing signal and for combining the mixing signal with said information signal to produce a correction signal. An analyzer analyzes the phase of said correction signal and generates an error signal based on the deviation of the analyzed phase from a reference phase. A bandwidth controller which recursively adjusts the phase of the correction signal such that the phase of said correction signal is substantially equal to said reference phase. The bandwidth controller then selects a bandwidth within an adjustable range based on the correction signal, estimates an offset by interrogating the error signal, and modifies said correction signal by the offset.

公开(公告)号：ES2144985T1

公开(公告)日：2000-07-01

申请号：ES98910290

申请日：1998-03-11

Applicant: INTERDIGITAL TECH CORP

Inventor： MESECHER DAVID K ,  YANG RUI ,  CERDA RAMON

IPC: H04L27/22 ,  H04B1/707 ,  H04B1/7085 ,  H04B1/7117 ,  H04B7/216 ,  H04L27/00 ,  H04L27/233

Abstract: A receiver for receiving a CDMA communication signal that is wirelessly transmitted includes a system for correcting phase errors in an information signal which has been transmitted. The correction system comprises circuitry for generating a mixing signal and for combining the mixing signal with said information signal to produce a correction signal. An analyzer analyzes the phase of said correction signal and generates an error signal based on the deviation of the analyzed phase from a reference phase. A bandwidth controller which recursively adjusts the phase of the correction signal such that the phase of said correction signal is substantially equal to said reference phase. The bandwidth controller then selects a bandwidth within an adjustable range based on the correction signal, estimates an offset by interrogating the error signal, and modifies said correction signal by the offset.

公开(公告)号：DE69828589T2

公开(公告)日：2006-03-16

申请号：DE69828589

申请日：1998-03-11

Applicant: INTERDIGITAL TECH CORP

Inventor： MESECHER K ,  YANG RUI ,  CERDA RAMON

IPC: H04L27/22 ,  H04L27/233 ,  H04B1/707 ,  H04B1/7085 ,  H04B1/7117 ,  H04B7/216 ,  H04L27/00

Abstract: A receiver for receiving a CDMA communication signal that is wirelessly transmitted includes a system for correcting phase errors in an information signal which has been transmitted. The correction system comprises circuitry for generating a mixing signal and for combining the mixing signal with said information signal to produce a correction signal. An analyzer analyzes the phase of said correction signal and generates an error signal based on the deviation of the analyzed phase from a reference phase. A bandwidth controller which recursively adjusts the phase of the correction signal such that the phase of said correction signal is substantially equal to said reference phase. The bandwidth controller then selects a bandwidth within an adjustable range based on the correction signal, estimates an offset by interrogating the error signal, and modifies said correction signal by the offset.

公开(公告)号：AT287171T

公开(公告)日：2005-01-15

申请号：AT98910290

申请日：1998-03-11

Applicant: INTERDIGITAL TECH CORP

Inventor： MESECHER DAVID K ,  YANG RUI ,  CERDA RAMON

IPC: H04L27/22 ,  H04B1/707 ,  H04B1/7085 ,  H04B1/7117 ,  H04B7/216 ,  H04L27/00 ,  H04L27/233

Abstract: A receiver for receiving a CDMA communication signal that is wirelessly transmitted includes a system for correcting phase errors in an information signal which has been transmitted. The correction system comprises circuitry for generating a mixing signal and for combining the mixing signal with said information signal to produce a correction signal. An analyzer analyzes the phase of said correction signal and generates an error signal based on the deviation of the analyzed phase from a reference phase. A bandwidth controller which recursively adjusts the phase of the correction signal such that the phase of said correction signal is substantially equal to said reference phase. The bandwidth controller then selects a bandwidth within an adjustable range based on the correction signal, estimates an offset by interrogating the error signal, and modifies said correction signal by the offset.

公开(公告)号：DE966819T1

公开(公告)日：2000-10-05

申请号：DE98910290

申请日：1998-03-11

Applicant: INTERDIGITAL TECH CORP

Inventor： MESECHER DAVID ,  YANG RUI ,  CERDA RAMON

IPC: H04L27/22 ,  H04B1/707 ,  H04B1/7085 ,  H04B1/7117 ,  H04B7/216 ,  H04L27/00 ,  H04L27/233

Abstract: A receiver for receiving a CDMA communication signal that is wirelessly transmitted includes a system for correcting phase errors in an information signal which has been transmitted. The correction system comprises circuitry for generating a mixing signal and for combining the mixing signal with said information signal to produce a correction signal. An analyzer analyzes the phase of said correction signal and generates an error signal based on the deviation of the analyzed phase from a reference phase. A bandwidth controller which recursively adjusts the phase of the correction signal such that the phase of said correction signal is substantially equal to said reference phase. The bandwidth controller then selects a bandwidth within an adjustable range based on the correction signal, estimates an offset by interrogating the error signal, and modifies said correction signal by the offset.

公开(公告)号：ES2144985T3

公开(公告)日：2005-06-16

申请号：ES98910290

申请日：1998-03-11

Applicant: INTERDIGITAL TECH CORP

Inventor： MESECHER DAVID K ,  YANG RUI ,  CERDA RAMON

IPC: H04L27/22 ,  H04B1/707 ,  H04B1/7085 ,  H04B1/7117 ,  H04B7/216 ,  H04L27/00 ,  H04L27/233

Abstract: UN BUCLE CERRADO DE FASE CON UN ANCHO DE BANDA AJUSTADO DE MANERA CONTINUA UTILIZADO POR UN RECEPTOR B-CDMA TM PARA CORREGIR CUALQUIER DESVIO, O DECALAJE, QUE PUDIERA OCURRIR ENTRE LA SEÑAL DE PORTADORA DE RADIOFRECUENCIA (RF) RECIBIDA Y LA FRECUENCIA DEL LO DE LA PRIMERA ETAPA QUE CONVIERTE LA SEÑAL DE PORTADORA DE RF RECIBIDA EN UNA FRECUENCIA INTERMEDIA (IF). EL PLL DEL RECEPTOR INCLUYE UN FILTRO CON UN ANCHO DE BANDA AJUSTABLE. SE UTILIZAN UN ANCHO DE BANDA MAS ANCHO DURANTE LA ADQUISICION INICIAL DE LA SEÑAL RECIBIDA. UNA VEZ QUE EL PLL HA ADQUIRIDO LA SEÑAL DE PORTADORA RECIBIDA UTILIZANDO EL ANCHO DE BANDA MAS ANCHO, EL ANCHO DE BANDA DEL FILTRO SE ESTRECHA GRADUALMENTE PARA OBTENER UN BAJO ERROR EN ESTADO ESTACIONARIO.

公开(公告)号：DK0966819T3

公开(公告)日：2005-05-23

申请号：DK98910290

申请日：1998-03-11

Applicant: INTERDIGITAL TECH CORP

Inventor： MESECHER DAVID K ,  YANG RUI ,  CERDA RAMON

IPC: H04L27/22 ,  H04B1/707 ,  H04B1/7085 ,  H04B1/7117 ,  H04B7/216 ,  H04L27/00 ,  H04L27/233

Abstract: A receiver for receiving a CDMA communication signal that is wirelessly transmitted includes a system for correcting phase errors in an information signal which has been transmitted. The correction system comprises circuitry for generating a mixing signal and for combining the mixing signal with said information signal to produce a correction signal. An analyzer analyzes the phase of said correction signal and generates an error signal based on the deviation of the analyzed phase from a reference phase. A bandwidth controller which recursively adjusts the phase of the correction signal such that the phase of said correction signal is substantially equal to said reference phase. The bandwidth controller then selects a bandwidth within an adjustable range based on the correction signal, estimates an offset by interrogating the error signal, and modifies said correction signal by the offset.

公开(公告)号：HK1024365A1

公开(公告)日：2000-10-05

申请号：HK00103671

申请日：2000-06-19

Applicant: INTERDIGITAL TECH CORP

Inventor： MESECHER DAVID K ,  YANG RUI ,  CERDA RAMON

IPC: H04L27/22 ,  H04B1/707 ,  H04B1/7085 ,  H04B1/7117 ,  H04B7/216 ,  H04L27/00 ,  H04L27/233 ,  H04L ,  H04B

Abstract: A receiver for receiving a CDMA communication signal that is wirelessly transmitted includes a system for correcting phase errors in an information signal which has been transmitted. The correction system comprises circuitry for generating a mixing signal and for combining the mixing signal with said information signal to produce a correction signal. An analyzer analyzes the phase of said correction signal and generates an error signal based on the deviation of the analyzed phase from a reference phase. A bandwidth controller which recursively adjusts the phase of the correction signal such that the phase of said correction signal is substantially equal to said reference phase. The bandwidth controller then selects a bandwidth within an adjustable range based on the correction signal, estimates an offset by interrogating the error signal, and modifies said correction signal by the offset.