WO2009099786A3 - Receiver and method of operation for use in mobile communications - Google Patents

Receiver and method of operation for use in mobile communications Download PDF

Info

Publication number
WO2009099786A3
WO2009099786A3 PCT/US2009/031978 US2009031978W WO2009099786A3 WO 2009099786 A3 WO2009099786 A3 WO 2009099786A3 US 2009031978 W US2009031978 W US 2009031978W WO 2009099786 A3 WO2009099786 A3 WO 2009099786A3
Authority
WO
WIPO (PCT)
Prior art keywords
agc
signal
variable gain
channel
gain device
Prior art date
Application number
PCT/US2009/031978
Other languages
French (fr)
Other versions
WO2009099786A2 (en
Inventor
Yaniv S. Salem
Moshe Ben Ayun
Oleg Chermoshniuk
Haim Malka
Original Assignee
Motorola, 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 Motorola, Inc. filed Critical Motorola, Inc.
Publication of WO2009099786A2 publication Critical patent/WO2009099786A2/en
Publication of WO2009099786A3 publication Critical patent/WO2009099786A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver

Abstract

An RF receiver (100) includes a variable gain device (105) for receiving an input RF signal, a mixer (107) for converting a signal produced by the variable gain device to a baseband signal, a baseband receiver channel (115) for processing the baseband signal, an AGC loop (130) coupled from the baseband channel to the variable gain device to provide AGC of the variable gain device, an AGC controller (141) to select an AGC threshold for use in the AGC loop, and an off-channel detector arrangement (103, 106) coupled to the AGC controller for detecting and indicating to the AGC controller: (i) a first condition when an off-channel signal has a level not less than a first detection threshold; and (ii) a second condition which during operation of the AGC loop is reached when an off-channel signal has been attenuated by the variable gain device to a level not greater than a second detection threshold, the AGC controller being operable upon receiving indication of the first condition to activate the AGC loop using a set AGC threshold and upon receiving indication of the second condition to dynamically adjust the AGC threshold to give a wanted level of a wanted on-channel signal.
PCT/US2009/031978 2008-02-01 2009-01-26 Receiver and method of operation for use in mobile communications WO2009099786A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0801872.3 2008-02-01
GB0801872A GB2457070B (en) 2008-02-01 2008-02-01 Receiver and method of operation for use in mobile communications

Publications (2)

Publication Number Publication Date
WO2009099786A2 WO2009099786A2 (en) 2009-08-13
WO2009099786A3 true WO2009099786A3 (en) 2009-10-01

Family

ID=39204074

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/031978 WO2009099786A2 (en) 2008-02-01 2009-01-26 Receiver and method of operation for use in mobile communications

Country Status (2)

Country Link
GB (1) GB2457070B (en)
WO (1) WO2009099786A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106209272B (en) * 2016-07-29 2018-11-16 中国电子科技集团公司第四十一研究所 One kind is based on double detection LTE signal level closed-loop control devices and method
US10299228B1 (en) 2016-09-27 2019-05-21 Sprint Communications Company L.P. Wireless radio frequency system to dynamically modify automatic gain control thresholds
CN113497633B (en) * 2020-04-01 2023-05-09 海能达通信股份有限公司 Method for improving IP2 index of zero intermediate frequency and low intermediate frequency architecture receiver and architecture thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030025623A1 (en) * 2001-07-31 2003-02-06 Brueske Daniel E. Dynamic range on demand receiver and method of varying same
US6741844B2 (en) * 2001-11-27 2004-05-25 Motorola, Inc. Receiver for audio enhancement and method therefor
US20060222116A1 (en) * 2005-03-31 2006-10-05 Freescale Semiconductor, Inc. AGC with integrated wideband interferer detection
JP2007043302A (en) * 2005-08-01 2007-02-15 Mitsubishi Electric Corp Mobile communication terminal
US20070086547A1 (en) * 2005-10-18 2007-04-19 Freescale Semiconductor, Inc. AGC for narrowband receivers
US7227916B2 (en) * 2003-08-26 2007-06-05 Freescale Semiconductor, Inc. Receiver with automatic gain control that operates with multiple protocols and method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6721547B2 (en) * 2001-05-04 2004-04-13 Atheros Communications, Inc. In-band and out-of-band signal detection for automatic gain calibration systems
US6859646B2 (en) * 2002-04-25 2005-02-22 Broadcom Corp Signal gain adjustment within an RF integrated circuit
GB2428146B (en) * 2005-07-06 2007-10-17 Motorola Inc RF receiver, wireless communication terminal and method of operation
KR100922947B1 (en) * 2006-03-30 2009-10-23 삼성전자주식회사 Method and apparatus for gain control in a receiver of wireless communication system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030025623A1 (en) * 2001-07-31 2003-02-06 Brueske Daniel E. Dynamic range on demand receiver and method of varying same
US6741844B2 (en) * 2001-11-27 2004-05-25 Motorola, Inc. Receiver for audio enhancement and method therefor
US7227916B2 (en) * 2003-08-26 2007-06-05 Freescale Semiconductor, Inc. Receiver with automatic gain control that operates with multiple protocols and method thereof
US20060222116A1 (en) * 2005-03-31 2006-10-05 Freescale Semiconductor, Inc. AGC with integrated wideband interferer detection
JP2007043302A (en) * 2005-08-01 2007-02-15 Mitsubishi Electric Corp Mobile communication terminal
US20070086547A1 (en) * 2005-10-18 2007-04-19 Freescale Semiconductor, Inc. AGC for narrowband receivers

Also Published As

Publication number Publication date
GB2457070A (en) 2009-08-05
WO2009099786A2 (en) 2009-08-13
GB2457070B (en) 2010-01-27
GB0801872D0 (en) 2008-03-12

Similar Documents

Publication Publication Date Title
US11211959B2 (en) Methods, circuits, systems and apparatus providing audio sensitivity enhancement in a wireless receiver, power management and other performances
US8948717B2 (en) RF peak detection scheme using baseband circuits
WO2007096732A3 (en) Automatic gain control system for receivers in wireless communications
WO2006107450A3 (en) Agc with integrated wideband interferer detection
WO2013116427A8 (en) Method and apparatus to independently control front end gain and baseband gain
JP2012170121A5 (en)
CN103580704A (en) Receiver device adopting automatic gain control and method for controlling receiver by means of automatic gain
EP3113370B1 (en) Preemptive automatic gain control (agc) for interference mitigation
WO2009099786A3 (en) Receiver and method of operation for use in mobile communications
WO2009143318A3 (en) Radio frequency receiver, wireless communication unit and method of operation
EP2326016A3 (en) Narrow-band interference detector, signal receiver employing narrow-band interference detector and controlling demodulator parameter setting according to narrow-band interference detection result, and related methods therefor
WO2007008314A3 (en) Rf receiver, wireless communication terminal and method of operation
KR100916485B1 (en) Receiver with sigma-delta structure
US20110312291A1 (en) Frequency Modulated Broadcasts
KR20120007350A (en) Satellite receiver for strong electric field and control method thereof
WO2012155848A1 (en) Automatic gain control method and device
JP2012019444A (en) Receiver
US10341160B2 (en) Radio receiver with smart listening mode
KR101232096B1 (en) Gain Control Apparatus of Low Noise Amplifier Using Detection of FM RSSI and Method Therefor
KR100716540B1 (en) Digitally-controlled automatic gain control apparatus
US8306163B1 (en) Method and apparatus for automatic gain control
WO2009044431A1 (en) RECEIVER FOR RECEIVING QUADRATURE FREQUENCY DIVISION MULTIPLEXED SIGNAL USING Zero-IF METHOD, AND RECEPTION METHOD
JP2007221297A (en) Multi-carrier receiver
US20180109340A1 (en) Broadcast receiving apparatus and broadcast receiving method
CN103517006A (en) Receiver

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09708059

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09708059

Country of ref document: EP

Kind code of ref document: A2