SE9703370L - Effektreglerenhet för en sändare med sluten slinga i ett cellulärt CDMA-system - Google Patents

Effektreglerenhet för en sändare med sluten slinga i ett cellulärt CDMA-system

Info

Publication number
SE9703370L
SE9703370L SE9703370A SE9703370A SE9703370L SE 9703370 L SE9703370 L SE 9703370L SE 9703370 A SE9703370 A SE 9703370A SE 9703370 A SE9703370 A SE 9703370A SE 9703370 L SE9703370 L SE 9703370L
Authority
SE
Sweden
Prior art keywords
ebio
estimator
power
pilot symbols
signal
Prior art date
Application number
SE9703370A
Other languages
Unknown language ( )
English (en)
Other versions
SE520054C2 (sv
SE9703370D0 (sv
Inventor
Vasic Dobrica
Original Assignee
Nippon Electric Co
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 Nippon Electric Co filed Critical Nippon Electric Co
Publication of SE9703370D0 publication Critical patent/SE9703370D0/sv
Publication of SE9703370L publication Critical patent/SE9703370L/sv
Publication of SE520054C2 publication Critical patent/SE520054C2/sv

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
    • H04W52/06—TPC algorithms
    • H04W52/08—Closed loop power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]
    • 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
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • 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
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
    • 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
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/20—TPC being performed according to specific parameters using error rate

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
SE9703370A 1996-09-20 1997-09-18 Effektreglerenhet för en sändare med sluten slinga i ett cellulärt CDMA-system SE520054C2 (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25035196A JP3001040B2 (ja) 1996-09-20 1996-09-20 Ｃｄｍａセルラーシステム用閉ループ送信機電力制御ユニット

Publications (3)

Publication Number Publication Date
SE9703370D0 SE9703370D0 (sv) 1997-09-18
SE9703370L true SE9703370L (sv) 1998-03-21
SE520054C2 SE520054C2 (sv) 2003-05-13

Family

ID=17206633

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9703370A SE520054C2 (sv) 1996-09-20 1997-09-18 Effektreglerenhet för en sändare med sluten slinga i ett cellulärt CDMA-system

Country Status (4)

Country Link
US (1) US6070086A (sv)
JP (1) JP3001040B2 (sv)
KR (1) KR100269714B1 (sv)
SE (1) SE520054C2 (sv)

Families Citing this family (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3006679B2 (ja) 1997-01-16 2000-02-07 日本電気株式会社 セルラー移動電話システム
US6829226B1 (en) * 1997-04-04 2004-12-07 Ericsson Inc. Power control for a mobile terminal in a satellite communication system
JP3156652B2 (ja) * 1997-09-02 2001-04-16 日本電気株式会社 移動体無線通信装置
US6304624B1 (en) * 1997-10-24 2001-10-16 Fujitsu Limited Coherent detecting method using a pilot symbol and a tentatively determined data symbol, a mobile communication receiver and an interference removing apparatus using the coherent detecting method
JP3441636B2 (ja) * 1997-11-21 2003-09-02 株式会社エヌ・ティ・ティ・ドコモ チャネル推定値を求める装置および方法、受信装置ならびに伝送システム
JP3805520B2 (ja) * 1998-01-28 2006-08-02 富士通株式会社 移動通信における速度推定装置および方法
BRPI9906339B1 (pt) 1998-04-17 2016-09-20 Matsushita Electric Ind Co Ltd aparelho de controle de taxa de transmissão, aparelho de estação base e método de controle de taxa de transmissão
JP3728116B2 (ja) * 1998-06-02 2005-12-21 キヤノン株式会社 通信方法及び装置
JP3092798B2 (ja) * 1998-06-30 2000-09-25 日本電気株式会社 適応送受信装置
US6404826B1 (en) * 1998-07-02 2002-06-11 Texas Instruments Incorporated Iterative signal-to-interference ratio estimation for WCDMA
KR100306286B1 (ko) * 1998-08-04 2001-09-29 윤종용 부호분할 다중접속 통신시스템의 채널 통신 장치 및 방법
US6252915B1 (en) * 1998-09-09 2001-06-26 Qualcomm Incorporated System and method for gaining control of individual narrowband channels using a wideband power measurement
JP3321419B2 (ja) 1998-09-17 2002-09-03 松下電器産業株式会社 通信端末装置および無線通信方法
US7190688B1 (en) * 1998-09-21 2007-03-13 Lucent Technologies Inc. Method and apparatus for adaptive setting of initial traffic power
KR100306169B1 (ko) * 1998-11-09 2001-11-02 윤종용 이통 통신시스템의 예약 다중 접속 제어장치 및 방법
US6208873B1 (en) * 1998-11-23 2001-03-27 Qualcomm Incorporated Method and apparatus for transmitting reverse link power control signals based on the probability that the power control command is in error
US6229841B1 (en) * 1998-12-11 2001-05-08 Qualcomm Incorporated Method and apparatus for energy estimation in a wireless receiver capable of receiving multiple instances of a common signal
KR100551159B1 (ko) * 1998-12-31 2006-05-25 유티스타콤코리아 유한회사 이동통신 시스템에서 데이터 전송속도를 이용한 역방향 링크의 폐쇄 루프 전력제어 방법
US6977910B1 (en) * 1998-12-31 2005-12-20 Texas Instruments Incorporated Power control with space time transmit diversity
DE60045499D1 (de) * 1999-04-02 2011-02-17 Ntt Docomo Inc Vorrichtung und Verfahren zur Fadingfrequenzentscheidung
JP3374908B2 (ja) * 1999-05-06 2003-02-10 日本電気株式会社 高速クローズトループ送信電力制御における基準値の更新方法
US6414988B1 (en) * 1999-05-12 2002-07-02 Qualcomm Incorporated Amplitude and phase estimation method in a wireless communication system
US6529482B1 (en) * 1999-06-30 2003-03-04 Qualcomm Inc. Method and apparatus for adjusting a signal-to-interference threshold in a closed loop power control communications system
JP2001024555A (ja) 1999-07-02 2001-01-26 Nec Mobile Commun Ltd Ｃｄｍａ通信装置および送信電力制御方法
JP3695571B2 (ja) * 1999-07-21 2005-09-14 株式会社エヌ・ティ・ティ・ドコモ Ｃｄｍａ移動通信システムにおけるｃｄｍａ受信装置および受信信号電力測定方法
US6633552B1 (en) * 1999-08-06 2003-10-14 Qualcomm Incorporated Method and apparatus for determining the closed loop power control set point in a wireless packet data communication system
JP3621310B2 (ja) 1999-10-07 2005-02-16 松下電器産業株式会社 無線通信装置及び送信電力制御方法
KR100317271B1 (ko) * 1999-11-02 2001-12-24 서평원 이동 통신 시스템의 트래픽 제어 방법 및 그를 위한 장치
US6892053B2 (en) * 1999-12-01 2005-05-10 Telefonaktiebolaget Lm Ericsson (Publ) Bit error estimates from pilot signals
DE10002327A1 (de) * 2000-01-20 2001-08-09 Infineon Technologies Ag Verfahren zur Bestimmung des aktuellen Signal-zu-Rausch-Verhältnisses und zur Leistungsregelung in Mobilfunksystemen mit Codemultiplex
JP4679686B2 (ja) * 2000-02-07 2011-04-27 パナソニック株式会社 無線通信装置及び送信電力制御方法
EP1404034B1 (en) * 2000-04-04 2008-11-26 Mitsubishi Electric Information Technology Centre Europe B.V. Base station for transmitting a word representative of the number of spreading codes allocated to the mobile stations in communication with the base station
US6944470B2 (en) * 2000-04-06 2005-09-13 Lijun Qian Method and system for closed loop power control in wireless systems
EP1198905B1 (en) * 2000-04-27 2010-12-22 Samsung Electronics Co., Ltd. Method of supporting power control on supplemental channel in base station
US6973134B1 (en) * 2000-05-04 2005-12-06 Cisco Technology, Inc. OFDM interference cancellation based on training symbol interference
FI115268B (sv) * 2000-05-12 2005-03-31 Nokia Corp Effektreglering i ett radio system
DE10027388A1 (de) * 2000-06-02 2001-12-06 Rohde & Schwarz Verfahren zur Bestimmung der durchschnittlichen Langzeit-Leistung eines digital modulierten Signals
DE10027610A1 (de) * 2000-06-06 2001-12-13 Fuba Automotive Gmbh Verfahren zum Diversityempfang von digitalen Fernsehsignalen
GB0016663D0 (en) * 2000-07-06 2000-08-23 Nokia Networks Oy Receiver and method of receiving
JP3738205B2 (ja) 2000-08-12 2006-01-25 三星電子株式会社 ネットワークの伝送電力最適化装置及びその方法
JP2002064414A (ja) * 2000-08-14 2002-02-28 Sony Corp 通信システム及び通信方法、並びに通信端末
US6816709B2 (en) 2000-08-19 2004-11-09 Pctel Maryland, Inc. Method and apparatus for testing CDMA signal propagation and coverage
CN1132357C (zh) * 2000-08-21 2003-12-24 华为技术有限公司 一种信号干扰比的测量方法及装置
US6810028B1 (en) * 2000-09-06 2004-10-26 L-3 Communications Corp. Open loop timing control for synchronous CDA systems
US7369871B2 (en) * 2000-09-20 2008-05-06 Skyworks Solutions, Inc. System and method for allowing a TDMA/CDMA portable transceiver to operate with closed loop power control
US6801784B1 (en) * 2000-11-02 2004-10-05 Skyworks Solutions, Inc. Continuous closed-loop power control system including modulation injection in a wireless transceiver power amplifier
KR100850940B1 (ko) 2001-03-26 2008-08-08 엘지전자 주식회사 액세스 채널의 초기 송신 전력을 결정하는 방법
WO2002082108A1 (en) 2001-04-03 2002-10-17 Nokia Corporation Reverse link handoff mechanism with hybrid-arq and cell site selection in cdma2000 1xev-dv systems
FR2824437B1 (fr) * 2001-05-04 2005-06-03 Eads Defence & Security Ntwk Generateur d'un signal radiofrequence module en phase ou frequence et en amplitude, et emetteur l'incorporant
KR100434042B1 (ko) * 2001-05-19 2004-06-04 엘지전자 주식회사 코드분할 다중접속에서 클로즈드 루프 전력제어 방법
FR2827728B1 (fr) * 2001-07-17 2004-02-06 Telediffusion De France Tdf Procede de reception d'un signal multiporteuse a diversite de voies, recepteur et systeme correspondant
US7113778B2 (en) * 2001-09-14 2006-09-26 Atc Technologies, Llc Aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods
KR100830491B1 (ko) * 2001-10-31 2008-05-21 엘지전자 주식회사 순방향 공통 전력 제어 채널의 전력 제어 방법
US6940894B2 (en) * 2001-11-08 2005-09-06 Qualcomm Incorporated Power estimation using weighted sum of pilot and non-pilot symbols
US7173990B2 (en) * 2001-12-27 2007-02-06 Dsp Group Inc. Joint equalization, soft-demapping and phase error correction in wireless system with receive diversity
US7133437B2 (en) * 2002-01-31 2006-11-07 Qualcomm Incorporated Pilot interpolation for a gated pilot with compensation for induced phase changes
US7046978B2 (en) * 2002-02-08 2006-05-16 Qualcomm, Inc. Method and apparatus for transmit pre-correction in wireless communications
EP1486089A1 (en) * 2002-03-08 2004-12-15 Nokia Corporation Enhanced and device for controlling the power in an asymmetric soft handover condition
US7493131B2 (en) * 2002-03-12 2009-02-17 Qualcomm Incorporated Velocity responsive power control
US7236778B2 (en) * 2002-09-10 2007-06-26 Northrop Grumman Corporation System and method for testing transceivers
US20050105593A1 (en) * 2002-10-07 2005-05-19 Takashi Dateki Transmission power control method and transmission power control apparatus in OFDM-CDMA
US7649967B2 (en) * 2002-10-11 2010-01-19 Telefonaktiebolaget L M Ericsson (Publ) Method and device for estimating a signal to interference ratio (SIR) in wideband code division multiple access (WCDMA) systems
WO2004075577A1 (en) * 2003-02-22 2004-09-02 Telefonaktiebolaget Lm Ericsson (Publ) Arrangements and method for power estimation
US7418042B2 (en) * 2003-09-17 2008-08-26 Atheros Communications, Inc. Repetition coding for a wireless system
EP1612964A1 (de) * 2004-06-28 2006-01-04 Siemens Aktiengesellschaft Verfahren zum Ermitteln eines Wertes der Sendeleistung für ein von einer sendenden Station an eine empfangende Station zu sendendes Signal sowie Vorrichtung
CN1798443B (zh) * 2004-12-29 2010-04-28 华为技术有限公司 一种物理信道误码率的求取方法
KR100577062B1 (ko) * 2004-12-29 2006-05-10 삼성전자주식회사 수신 다이버시티구조를 갖는 이동통신단말기에서전력제어를 하기 위한 장치 및 방법
US7564893B2 (en) * 2005-03-22 2009-07-21 Agilent Technologies, Inc. Test system and method for parallel modulation error measurement of transceivers
US7787570B2 (en) * 2005-07-13 2010-08-31 Skyworks Solutions, Inc. Polar loop radio frequency (RF) transmitter having increased dynamic range amplitude control
GB2428543B (en) 2005-07-20 2007-11-07 Motorola Inc Method and apparatus for power control of an air interface transmission
US20080117849A1 (en) * 2006-09-08 2008-05-22 Qualcomm Incorporated Method and apparatus for interaction of fast other sector interference (osi) with slow osi
US8094554B2 (en) * 2006-10-26 2012-01-10 Qualcomm Incorporated Compressed mode operation and power control with discontinuous transmission and/or reception
US8032183B2 (en) * 2007-07-16 2011-10-04 Alcatel Lucent Architecture to support network-wide multiple-in-multiple-out wireless communication
JP5144709B2 (ja) * 2010-04-21 2013-02-13 株式会社日立国際電気 移動局装置
WO2012036603A1 (en) * 2010-09-16 2012-03-22 Zte Wistron Telecom Ab Method and system for improved interference cancellation by path selection
US8538472B2 (en) * 2010-12-14 2013-09-17 Intel Mobile Communications GmbH User equipment and method for performing downlink and/or uplink power control
US9144020B2 (en) 2012-03-19 2015-09-22 Intel Deutschland Gmbh Dynamic RxDiv for idle mode in a user equipment
KR102162491B1 (ko) * 2014-01-06 2020-10-06 삼성전자주식회사 저전력 엔벨로프 검출 수신기에서 간섭 신호를 검출하는 방법 및 장치
US20190357150A1 (en) * 2018-05-17 2019-11-21 Qualcomm Incorporated Transmission power configuration

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI94579C (sv) * 1994-01-12 1995-09-25 Nokia Mobile Phones Ltd Förfarande för datakommunikation
US5604730A (en) * 1994-07-25 1997-02-18 Qualcomm Incorporated Remote transmitter power control in a contention based multiple access system
US5727033A (en) * 1994-11-30 1998-03-10 Lucent Technologies Inc. Symbol error based power control for mobile telecommunication system

Also Published As

Publication number Publication date
US6070086A (en) 2000-05-30
KR100269714B1 (ko) 2000-10-16
JP3001040B2 (ja) 2000-01-17
SE520054C2 (sv) 2003-05-13
KR19980024824A (ko) 1998-07-06
JPH1098431A (ja) 1998-04-14
SE9703370D0 (sv) 1997-09-18

Similar Documents

Publication Publication Date Title
SE9703370L (sv) Effektreglerenhet för en sändare med sluten slinga i ett cellulärt CDMA-system
US7916810B2 (en) Parameter estimation for adaptive antenna system
US6647003B1 (en) Channel estimation unit, and CDMA receiver and CDMA transceiver with channel estimation unit
KR100397100B1 (ko) Cdma 이동통신 시스템, 기지국, 이동국 및 소프트 핸드오버 동안의 통신 제어 방법
Seo et al. SIR-based transmit power control of reverse link for coherent DS-CDMA mobile radio
CA2281733C (en) Rake receiver for direct spreading cdma transmission
US6178194B1 (en) Cellular mobile telephone system
KR100378970B1 (ko) 송수신 장치 및 송수신 방법
CA2281676C (en) Channel estimation unit, and cdma receiver and cdma transceiver with channel estimation unit
US6904078B1 (en) CDMA receiver and CDMA transmitter/receiver
WO1995024086A3 (en) A multiple access digital transmission system and a radio base station and a receiver for use in such a system
KR20020042918A (ko) 공간-시간 부호화 송신 다이버시티 신호 검출 장치 및 그방법
WO2001022756A1 (fr) Regulateur de puissance d'emission
CN101022308A (zh) Wcdma网络中判断同步状态的方法和系统
JP3728116B2 (ja) 通信方法及び装置
CA2288486A1 (en) Communication terminal apparatus and radio communication method
ATE322768T1 (de) Radio-sende-empfänger mit geschwindigkeitsabhängiger schätzung der signalqualität
AU724387B2 (en) Compensation of doppler shift in a mobile communication system
CN1980077A (zh) 宽带码分多址移动通信系统中非正交干扰估计方法及装置
AU1600197A (en) Adaptive compensation of doppler shift in a mobile communication system
US20050101271A1 (en) Frequency error detector and combiner in a receiver of a mobile communication system
KR100973778B1 (ko) 이동 통신 단말기 및 이동 통신 방법
Kurniawan Effect of feedback delay on fixed step and variable step power control algorithms in CDMA systems
KR20070121002A (ko) Ｒａｋｅ 수신기에 대하여 지연 값들을 선택하는 방법 및컴퓨터 판독가능 매체
JP3075341B2 (ja) 送受信装置

Legal Events

Date Code Title Description
NUG Patent has lapsed