WO2005117309A9 - 送信機の負荷インピーダンス不良検出方式 - Google Patents

送信機の負荷インピーダンス不良検出方式 Download PDF

Info

Publication number
WO2005117309A9
WO2005117309A9 PCT/JP2005/010011 JP2005010011W WO2005117309A9 WO 2005117309 A9 WO2005117309 A9 WO 2005117309A9 JP 2005010011 W JP2005010011 W JP 2005010011W WO 2005117309 A9 WO2005117309 A9 WO 2005117309A9
Authority
WO
WIPO (PCT)
Prior art keywords
load impedance
reflected signal
cpich
faulty
detecting system
Prior art date
Application number
PCT/JP2005/010011
Other languages
English (en)
French (fr)
Other versions
WO2005117309A1 (ja
Inventor
Yuzo Yoneyama
Original Assignee
Nec Corp
Yuzo Yoneyama
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 Nec Corp, Yuzo Yoneyama filed Critical Nec Corp
Priority to EP05745930A priority Critical patent/EP1758281A1/en
Priority to US11/597,572 priority patent/US20070222629A1/en
Priority to JP2006514017A priority patent/JP4243868B2/ja
Publication of WO2005117309A1 publication Critical patent/WO2005117309A1/ja
Publication of WO2005117309A9 publication Critical patent/WO2005117309A9/ja

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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
    • H04B17/103—Reflected power, e.g. return loss
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/15—Performance testing
    • H04B17/17—Detection of non-compliance or faulty performance, e.g. response deviations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Transmitters (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

本発明は、ベースバンド信号発生部（１０１）と、反射信号を検出するための反射信号モニタ部（１０６）とを含むＣＤＭＡ方式の基地局送信機における負荷インピーダンス不良検出方式である。ＣＰＩＣＨ電力検出部（１１１）は、反射信号モニタ部から得られた反射信号からＣＰＩＣＨ電力を検出する。リターンロス判定部（１１２）は、ＣＰＩＣＨ電力検出部で検出されたＣＰＩＣＨ電力値と、ベースバンド信号発生部から与えられるＣＰＩＣＨ送信電力設定値（１１３）との差からリターンロスを判定し、リターンロスがあらかじめ定められた閾値を超えた場合に、負荷インピーダンスの不良と判定する。
PCT/JP2005/010011 2004-05-25 2005-05-25 送信機の負荷インピーダンス不良検出方式 WO2005117309A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP05745930A EP1758281A1 (en) 2004-05-25 2005-05-25 Transmitter load impedance faulty detecting system
US11/597,572 US20070222629A1 (en) 2004-05-25 2005-05-25 Load Impedance Defection System for Transmitter
JP2006514017A JP4243868B2 (ja) 2004-05-25 2005-05-25 送信機の負荷インピーダンス不良検出方式

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004-154712 2004-05-25
JP2004154712 2004-05-25

Publications (2)

Publication Number Publication Date
WO2005117309A1 WO2005117309A1 (ja) 2005-12-08
WO2005117309A9 true WO2005117309A9 (ja) 2009-05-14

Family

ID=35451228

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2005/010011 WO2005117309A1 (ja) 2004-05-25 2005-05-25 送信機の負荷インピーダンス不良検出方式

Country Status (6)

Country Link
US (1) US20070222629A1 (ja)
EP (1) EP1758281A1 (ja)
JP (1) JP4243868B2 (ja)
KR (1) KR100862127B1 (ja)
CN (1) CN1957550A (ja)
WO (1) WO2005117309A1 (ja)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009077117A (ja) * 2007-09-20 2009-04-09 Sharp Corp 通信装置
JP5234947B2 (ja) * 2008-10-07 2013-07-10 日本無線株式会社 電力検波回路
CN102246419B (zh) * 2008-12-15 2014-03-19 日本电气株式会社 功率检测电路、发射机和功率检测方法
US9087247B2 (en) * 2010-01-19 2015-07-21 Symbol Technologies, Llc Passive RFID triggering systems and methods using antenna reverse power detection
US9203489B2 (en) 2010-05-05 2015-12-01 Google Technology Holdings LLC Method and precoder information feedback in multi-antenna wireless communication systems
US9813262B2 (en) 2012-12-03 2017-11-07 Google Technology Holdings LLC Method and apparatus for selectively transmitting data using spatial diversity
US9591508B2 (en) 2012-12-20 2017-03-07 Google Technology Holdings LLC Methods and apparatus for transmitting data between different peer-to-peer communication groups
US9979531B2 (en) 2013-01-03 2018-05-22 Google Technology Holdings LLC Method and apparatus for tuning a communication device for multi band operation
US20140210450A1 (en) * 2013-01-25 2014-07-31 Nokia Siemens Networks Oy Methods and apparatus for estimating return loss
US10229697B2 (en) 2013-03-12 2019-03-12 Google Technology Holdings LLC Apparatus and method for beamforming to obtain voice and noise signals
US9386542B2 (en) 2013-09-19 2016-07-05 Google Technology Holdings, LLC Method and apparatus for estimating transmit power of a wireless device
US9549290B2 (en) 2013-12-19 2017-01-17 Google Technology Holdings LLC Method and apparatus for determining direction information for a wireless device
US9491007B2 (en) 2014-04-28 2016-11-08 Google Technology Holdings LLC Apparatus and method for antenna matching
US9478847B2 (en) 2014-06-02 2016-10-25 Google Technology Holdings LLC Antenna system and method of assembly for a wearable electronic device
US10056786B2 (en) 2015-11-11 2018-08-21 Avago Technologies General Ip (Singapore) Pte. Ltd Power transmitting unit with adjustable field and methods for use therewith

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0927783A (ja) * 1995-07-13 1997-01-28 Fujitsu Ltd 基地局アンテナ障害検出方法
US6463295B1 (en) * 1996-10-11 2002-10-08 Arraycomm, Inc. Power control with signal quality estimation for smart antenna communication systems
US6104287A (en) 1997-06-27 2000-08-15 Lucent Technologies Inc. Circulator reverse power alarm
JP4226183B2 (ja) * 2000-03-01 2009-02-18 株式会社日立国際電気 反射影響度検出器
KR100735402B1 (ko) * 2000-11-07 2007-07-04 삼성전자주식회사 비동기 이동통신시스템에서 하향 공유 채널에 사용하는 송신 형식 결합 지시기의 전송 장치 및 방법
US7006841B2 (en) * 2000-12-20 2006-02-28 Lucent Technologies Inc Method to control base station transmit power drift during soft handoffs
US6845126B2 (en) * 2001-01-26 2005-01-18 Telefonaktiebolaget L.M. Ericsson (Publ) System and method for adaptive antenna impedance matching

Also Published As

Publication number Publication date
US20070222629A1 (en) 2007-09-27
CN1957550A (zh) 2007-05-02
WO2005117309A1 (ja) 2005-12-08
JP4243868B2 (ja) 2009-03-25
JPWO2005117309A1 (ja) 2008-04-03
KR20070027581A (ko) 2007-03-09
EP1758281A1 (en) 2007-02-28
KR100862127B1 (ko) 2008-10-09

Similar Documents

Publication Publication Date Title
WO2005117309A9 (ja) 送信機の負荷インピーダンス不良検出方式
WO2008067189A3 (en) Monitoring and control of transmit power in a multi-modem wireless communication device
WO2004038638A3 (en) System and method for tracking the location of multiple mobile radio transceiver units
WO2008042967A3 (en) Random access signaling transmission for system access in wireless communication
EP2333981A3 (en) Transmit power control techniques for wireless communication systems
WO2007050899A3 (en) A method and apparatus for processing in an idle state by an access network in wireless communication systems
CA2328307A1 (en) Device and method for controlling transmission on reverse link in mobile communication system
CA2369918A1 (en) Adaptive power control in a mobile radio communications system
WO2008027948A3 (en) Active wireless tag and auxiliary device for use with monitoring center for tracking individuals or objects
WO2005076915A3 (en) Methods and apparatuses for selectively disabling functionality of a device
WO2004086772A3 (en) Method and system for establishing an emergency call in a communications system
WO2001080420A3 (en) Amplifier circuit
WO2001003309A3 (en) Adaptive path searcher in a cdma receiver
WO2006099464A3 (en) Systems and methods to detect collisions in channel sense multiple access communications
EP1739855A3 (en) Transmitter-receiver of mobile communication system
WO2006052560A3 (en) System and method for dynamic power savings for short range wireless systems
WO2001076103A1 (fr) Appareil de communication radio et procede de communication radio
WO2011124959A8 (en) Gnss receiver and positioning method
WO2002093946A3 (en) Rrm optimization on iur for congestion control
WO2003003571A3 (en) Automatic gain control
WO2005043810A3 (en) Communication partner appliance with automatic send mode activation
WO2004052029A3 (en) Adaptive control of transmission procedures
WO2003027818A3 (en) A method and apparatus to provide a user priority mode
EP1727388A3 (en) Method and system for control of congestion in CDMA systems
WO2008022080A3 (en) Communication device controlled call handoffs between communication networks

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200580016814.3

Country of ref document: CN

AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2006514017

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Ref document number: DE

WWE Wipo information: entry into national phase

Ref document number: 1020067026280

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 2005745930

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2005745930

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1020067026280

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 11597572

Country of ref document: US

Ref document number: 2007222629

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 11597572

Country of ref document: US