WO2003001688A3 - Dispositif de communications - Google Patents

Dispositif de communications Download PDF

Info

Publication number
WO2003001688A3
WO2003001688A3 PCT/EP2002/006334 EP0206334W WO03001688A3 WO 2003001688 A3 WO2003001688 A3 WO 2003001688A3 EP 0206334 W EP0206334 W EP 0206334W WO 03001688 A3 WO03001688 A3 WO 03001688A3
Authority
WO
WIPO (PCT)
Prior art keywords
filter
adjusted
power level
depending
communications device
Prior art date
Application number
PCT/EP2002/006334
Other languages
English (en)
Other versions
WO2003001688A2 (fr
Inventor
Ulrika Sallenhag
Original Assignee
Ericsson Telefon Ab L M
Ulrika Sallenhag
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
Priority claimed from GB0115088A external-priority patent/GB2376823B/en
Application filed by Ericsson Telefon Ab L M, Ulrika Sallenhag filed Critical Ericsson Telefon Ab L M
Priority to AU2002317789A priority Critical patent/AU2002317789A1/en
Priority to US10/480,987 priority patent/US20040157574A1/en
Publication of WO2003001688A2 publication Critical patent/WO2003001688A2/fr
Publication of WO2003001688A3 publication Critical patent/WO2003001688A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers

Landscapes

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

Abstract

Selon l'invention, dans un émetteur radioélectrique, tel qu'un dispositif de communications mobile, un filtre est réglé, en fonction d'un niveau de puissance d'un signal de transmission détecté, et/ou en fonction d'un mode de fonctionnement du dispositif. La bande passante est réglée, par contrôle d'un élément de transconductance présent dans le filtre. Ledit filtre peut ensuite être contrôlé pour présenter des caractéristiques qui sont appropriées pour les conditions de fonctionnement du dispositif dans lequel le filtre est utilisé, et qui permettent d'obtenir un spectre de commutation acceptable pour les signaux, tout en permettant à la puissance de sortie de l'amplificateur de puissance d'accélérer rapidement de manière acceptable. Par exemple, ledit filtre peut être réglé en fonction des normes de communications (par exemple, GSM ou PCS) sous lesquelles le dispositif fonctionne et en fonction du niveau de puissance des signaux transmis.
PCT/EP2002/006334 2001-06-20 2002-06-10 Dispositif de communications WO2003001688A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002317789A AU2002317789A1 (en) 2001-06-20 2002-06-10 Communications device
US10/480,987 US20040157574A1 (en) 2001-06-20 2002-06-10 Communications device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0115088A GB2376823B (en) 2001-06-20 2001-06-20 Communications device
GB0115088.7 2001-06-20
US30124401P 2001-06-26 2001-06-26
US60/301,244 2001-06-26

Publications (2)

Publication Number Publication Date
WO2003001688A2 WO2003001688A2 (fr) 2003-01-03
WO2003001688A3 true WO2003001688A3 (fr) 2003-03-20

Family

ID=26246213

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/006334 WO2003001688A2 (fr) 2001-06-20 2002-06-10 Dispositif de communications

Country Status (2)

Country Link
AU (1) AU2002317789A1 (fr)
WO (1) WO2003001688A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE531657C2 (sv) 2007-01-31 2009-06-23 Nanoradio Ab Bakgrundsavsökningsmetod för WLAN-klientenheter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5291516A (en) * 1991-05-13 1994-03-01 Omnipoint Data Company, Inc. Dual mode transmitter and receiver
EP0682458A2 (fr) * 1994-05-13 1995-11-15 Nec Corporation Dispositif de radio communication
EP1043833A1 (fr) * 1999-04-07 2000-10-11 Lucent Technologies Inc. Boucle de réglage de puissance pour fréquences radio avec filtre de boucle variable
US6154664A (en) * 1998-06-24 2000-11-28 Conexant System, Inc. Dual band cellular phone with two power amplifiers and power control circuit therefore

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5291516A (en) * 1991-05-13 1994-03-01 Omnipoint Data Company, Inc. Dual mode transmitter and receiver
EP0682458A2 (fr) * 1994-05-13 1995-11-15 Nec Corporation Dispositif de radio communication
US6154664A (en) * 1998-06-24 2000-11-28 Conexant System, Inc. Dual band cellular phone with two power amplifiers and power control circuit therefore
EP1043833A1 (fr) * 1999-04-07 2000-10-11 Lucent Technologies Inc. Boucle de réglage de puissance pour fréquences radio avec filtre de boucle variable

Also Published As

Publication number Publication date
AU2002317789A1 (en) 2003-01-08
WO2003001688A2 (fr) 2003-01-03

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