ES2159858T3 - Puesta en secuencia de transmision. - Google Patents

Puesta en secuencia de transmision.

Info

Publication number
ES2159858T3
ES2159858T3 ES97918670T ES97918670T ES2159858T3 ES 2159858 T3 ES2159858 T3 ES 2159858T3 ES 97918670 T ES97918670 T ES 97918670T ES 97918670 T ES97918670 T ES 97918670T ES 2159858 T3 ES2159858 T3 ES 2159858T3
Authority
ES
Spain
Prior art keywords
band mode
power amplifier
power
phase lock
control oscillator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES97918670T
Other languages
English (en)
Inventor
Robert R Horton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ericsson Inc
Original Assignee
Ericsson Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Inc filed Critical Ericsson Inc
Application granted granted Critical
Publication of ES2159858T3 publication Critical patent/ES2159858T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/107—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L3/00—Starting of generators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/107—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth
    • H03L7/1075—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth by changing characteristics of the loop filter, e.g. changing the gain, changing the bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)

Abstract

PROCEDIMIENTO Y APARATO PARA INICIALIZAR UN APARATO DE RADIOTRANSMISION, QUE COMPRENDE UN OSCILADOR DE CONTROL DE LA TENSION, UN BUCLE DE BLOQUEO DE FASE Y UN AMPLIFICADOR DE POTENCIA, A FIN DE EVITAR LA GENERACION DE INTERFERENCIAS INDESEADAS EN LOS CANALES DE RADIO VECINOS. EN PRIMER LUGAR, SE HABILITA EL OSCILADOR DE CONTROL DE LA TENSION Y SE CONMUTA EL BUCLE BLOQUEADO EN FASE DESDE UN MODO DE BANDA ESTRECHA A UN MODO DE BANDA ANCHA, PARA DAR UN TIEMPO MAS RAPIDO DE EQUILIBRADO Y REDUCIR EL SOBREIMPULSO. EL AMPLIFICADOR DE POTENCIA SE SUBE A CONTINUACION SUAVEMENTE HASTA UN NIVEL FINAL DE POTENCIA. POR ULTIMO, EL BUCLE DE BLOQUEO DE FASE SE CONMUTA DEL MODO DE BANDA ANCHA AL MODO DE BANDA ESTRECHA, UNA VEZ QUE EL AMPLIFICADOR DE POTENCIA HA ALCANZADO PRACTICAMENTE EL NIVEL FINAL DE POTENCIA.
ES97918670T 1996-04-19 1997-04-17 Puesta en secuencia de transmision. Expired - Lifetime ES2159858T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/634,723 US5802450A (en) 1996-04-19 1996-04-19 Transmit sequencing

Publications (1)

Publication Number Publication Date
ES2159858T3 true ES2159858T3 (es) 2001-10-16

Family

ID=24544962

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97918670T Expired - Lifetime ES2159858T3 (es) 1996-04-19 1997-04-17 Puesta en secuencia de transmision.

Country Status (18)

Country Link
US (1) US5802450A (es)
EP (1) EP0895674B1 (es)
JP (1) JP3916002B2 (es)
KR (1) KR100447070B1 (es)
CN (1) CN1156992C (es)
AU (1) AU727812B2 (es)
BR (1) BR9708704A (es)
CA (1) CA2251845C (es)
DE (1) DE69706536T2 (es)
DK (1) DK0895674T3 (es)
EE (1) EE04075B1 (es)
ES (1) ES2159858T3 (es)
HK (1) HK1021274A1 (es)
NO (1) NO984854L (es)
PL (1) PL182699B1 (es)
RU (1) RU2195769C2 (es)
TR (1) TR199802103T2 (es)
WO (1) WO1997040586A1 (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6157271A (en) * 1998-11-23 2000-12-05 Motorola, Inc. Rapid tuning, low distortion digital direct modulation phase locked loop and method therefor
US6504437B1 (en) * 2001-06-26 2003-01-07 Agere Systems Inc. Low-noise, fast-lock phase-lock loop with “gearshifting” control
GB2389255B (en) * 2002-05-31 2005-08-31 Hitachi Ltd Apparatus for radio telecommunication system and method of building up output power
GB2416254B (en) 2002-05-31 2006-06-28 Renesas Tech Corp Semiconductor integrated circuit for communication, radio-communications apparatus, and transmission starting method
GB2389251B (en) 2002-05-31 2005-09-07 Hitachi Ltd A communication semiconductor integrated circuit, a wireless communication apparatus, and a loop gain calibration method
GB2389253B (en) * 2002-05-31 2005-09-21 Hitachi Ltd Transmitter and semiconductor integrated circuit for communication
US8070224B2 (en) * 2005-04-20 2011-12-06 Audiovox Corporation Vehicle entertainment system incorporated within the armrest/console of a vehicle
US7755437B2 (en) * 2005-08-24 2010-07-13 Qualcomm Incorporated Phase locked loop system having locking and tracking modes of operation
US7539473B2 (en) * 2006-04-26 2009-05-26 International Business Machines Corporation Overshoot reduction in VCO calibration for serial link phase lock loop (PLL)
US8073416B2 (en) * 2007-10-25 2011-12-06 Qualcomm Incorporated Method and apparatus for controlling a bias current of a VCO in a phase-locked loop
KR101578512B1 (ko) 2009-11-19 2015-12-18 삼성전자주식회사 Ｌｃ 탱크 필터를 포함하는 수신기
US11601156B2 (en) 2020-07-06 2023-03-07 Mediatek Inc. Apparatus and methods for improved transmit power

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5175729A (en) * 1991-06-05 1992-12-29 Motorola, Inc. Radio with fast lock phase-locked loop
US5142246A (en) * 1991-06-19 1992-08-25 Telefonaktiebolaget L M Ericsson Multi-loop controlled VCO
US5438703A (en) * 1991-11-18 1995-08-01 Motorola, Inc. Radio with reduced frequency pull
US5498998A (en) * 1992-11-16 1996-03-12 Gehrke; James K. Method for adjusting the output frequency of a frequency synthesizer
JP2875472B2 (ja) * 1994-01-19 1999-03-31 日本無線株式会社 Ｐｌｌシンセサイザ及びその制御方法
GB2289386B (en) * 1994-04-28 1998-12-30 Motorola Ltd Radio transmitter and method of control of transmit power increase
EP0684701B1 (en) * 1994-05-26 2005-01-12 Matsushita Electric Industrial Co., Ltd. Frequency synthesizer
US5499392A (en) * 1994-07-19 1996-03-12 Matsushita Communication Industrial Corporation Of America Filter having a variable response time for filtering an input signal
US5463351A (en) * 1994-09-29 1995-10-31 Motorola, Inc. Nested digital phase lock loop

Also Published As

Publication number Publication date
NO984854L (no) 1998-11-26
CN1222268A (zh) 1999-07-07
KR100447070B1 (ko) 2004-10-14
DE69706536D1 (de) 2001-10-11
PL182699B1 (pl) 2002-02-28
DE69706536T2 (de) 2002-04-18
CN1156992C (zh) 2004-07-07
TR199802103T2 (en) 1999-01-18
CA2251845C (en) 2004-03-02
BR9708704A (pt) 1999-08-03
PL329378A1 (en) 1999-03-29
JP3916002B2 (ja) 2007-05-16
DK0895674T3 (da) 2001-11-19
EP0895674B1 (en) 2001-09-05
EE9800344A (et) 1999-04-15
AU727812B2 (en) 2000-12-21
AU2672097A (en) 1997-11-12
EE04075B1 (et) 2003-06-16
KR20000010534A (ko) 2000-02-15
HK1021274A1 (en) 2000-06-02
CA2251845A1 (en) 1997-10-30
WO1997040586A1 (en) 1997-10-30
US5802450A (en) 1998-09-01
NO984854D0 (no) 1998-10-16
JP2000509221A (ja) 2000-07-18
RU2195769C2 (ru) 2002-12-27
EP0895674A1 (en) 1999-02-10

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