SE9404427L - Förfarande och anordning för effektestimering i ett ortogonalt kodat kommunikationssystem - Google Patents

Förfarande och anordning för effektestimering i ett ortogonalt kodat kommunikationssystem

Info

Publication number
SE9404427L
SE9404427L SE9404427A SE9404427A SE9404427L SE 9404427 L SE9404427 L SE 9404427L SE 9404427 A SE9404427 A SE 9404427A SE 9404427 A SE9404427 A SE 9404427A SE 9404427 L SE9404427 L SE 9404427L
Authority
SE
Sweden
Prior art keywords
communication system
input data
power estimation
coded communication
data vector
Prior art date
Application number
SE9404427A
Other languages
English (en)
Swedish (sv)
Other versions
SE9404427D0 (sv
Inventor
Fuyun Ling
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 SE9404427D0 publication Critical patent/SE9404427D0/xx
Publication of SE9404427L publication Critical patent/SE9404427L/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
    • 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
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/228—TPC being performed according to specific parameters taking into account previous information or commands using past power values or information
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • 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
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/225—Calculation of statistics, e.g. average, variance

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
SE9404427A 1992-06-29 1994-12-21 Förfarande och anordning för effektestimering i ett ortogonalt kodat kommunikationssystem SE9404427L (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/906,321 US5297161A (en) 1992-06-29 1992-06-29 Method and apparatus for power estimation in an orthogonal coded communication system
PCT/US1993/005450 WO1994000926A1 (en) 1992-06-29 1993-06-09 Method and apparatus for power estimation in an orthogonal coded communication system

Publications (2)

Publication Number Publication Date
SE9404427D0 SE9404427D0 (sv) 1994-12-21
SE9404427L true SE9404427L (sv) 1995-02-28

Family

ID=25422248

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9404427A SE9404427L (sv) 1992-06-29 1994-12-21 Förfarande och anordning för effektestimering i ett ortogonalt kodat kommunikationssystem

Country Status (10)

Country Link
US (1) US5297161A (es)
JP (1) JP3205338B2 (es)
KR (2) KR970008172B1 (es)
BR (1) BR9306623A (es)
CA (1) CA2137460C (es)
DE (2) DE4392993T1 (es)
FI (1) FI946045A (es)
MX (1) MX9303881A (es)
SE (1) SE9404427L (es)
WO (1) WO1994000926A1 (es)

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5321721A (en) * 1991-09-13 1994-06-14 Sony Corporation Spread spectrum communication system and transmitter-receiver
US5396516A (en) * 1993-02-22 1995-03-07 Qualcomm Incorporated Method and system for the dynamic modification of control paremeters in a transmitter power control system
DE4316939A1 (de) * 1993-05-21 1994-11-24 Philips Patentverwaltung CDMA-Übertragungssystem
EP0631382B1 (de) * 1993-06-25 2001-05-09 Siemens Aktiengesellschaft Verfahren zur Optimierung der automatischen Verstärkereinstellung in Funkempfängern
US5870393A (en) 1995-01-20 1999-02-09 Hitachi, Ltd. Spread spectrum communication system and transmission power control method therefor
JP3457357B2 (ja) * 1993-07-23 2003-10-14 株式会社日立製作所 スペクトル拡散通信システム、送信電力制御方法、移動端末装置及び基地局
GB2281477A (en) * 1993-08-20 1995-03-01 American Telephone & Telegraph Operation of a CDMA net
US5412686A (en) * 1993-09-17 1995-05-02 Motorola Inc. Method and apparatus for power estimation in a communication system
US5414728A (en) * 1993-11-01 1995-05-09 Qualcomm Incorporated Method and apparatus for bifurcating signal transmission over in-phase and quadrature phase spread spectrum communication channels
US5459758A (en) * 1993-11-02 1995-10-17 Interdigital Technology Corporation Noise shaping technique for spread spectrum communications
MX9603336A (es) * 1994-02-17 1997-05-31 Micrilor Inc Red de area local inalambrica de alto indice de datos.
US5452473A (en) * 1994-02-28 1995-09-19 Qualcomm Incorporated Reverse link, transmit power correction and limitation in a radiotelephone system
US5768684A (en) * 1994-03-04 1998-06-16 Motorola, Inc. Method and apparatus for bi-directional power control in a digital communication system
US5497395A (en) * 1994-04-04 1996-03-05 Qualcomm Incorporated Method and apparatus for modulating signal waveforms in a CDMA communication system
JP2980156B2 (ja) * 1994-05-12 1999-11-22 エヌ・ティ・ティ移動通信網株式会社 送信電力制御方法および該制御方法を用いたスペクトル拡散通信装置
US5450453A (en) * 1994-09-28 1995-09-12 Motorola, Inc. Method, apparatus and system for decoding a non-coherently demodulated signal
US5710768A (en) * 1994-09-30 1998-01-20 Qualcomm Incorporated Method of searching for a bursty signal
US7020111B2 (en) * 1996-06-27 2006-03-28 Interdigital Technology Corporation System for using rapid acquisition spreading codes for spread-spectrum communications
US7123600B2 (en) * 1995-06-30 2006-10-17 Interdigital Technology Corporation Initial power control for spread-spectrum communications
US6885652B1 (en) * 1995-06-30 2005-04-26 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
US7929498B2 (en) * 1995-06-30 2011-04-19 Interdigital Technology Corporation Adaptive forward power control and adaptive reverse power control for spread-spectrum communications
ZA965340B (en) * 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US5907842A (en) * 1995-12-20 1999-05-25 Intel Corporation Method of sorting numbers to obtain maxima/minima values with ordering
US6036350A (en) * 1995-12-20 2000-03-14 Intel Corporation Method of sorting signed numbers and solving absolute differences using packed instructions
US6067446A (en) * 1996-07-11 2000-05-23 Telefonaktiebolaget Lm Ericsson Power presetting in a radio communication system
US5892774A (en) * 1996-12-12 1999-04-06 Qualcomm Incorporated Phase shift encoded subchannel
US6560461B1 (en) 1997-08-04 2003-05-06 Mundi Fomukong Authorized location reporting paging system
US6067315A (en) * 1997-12-04 2000-05-23 Telefonaktiebolaget Lm Ericsson Method and apparatus for coherently-averaged power estimation
US6154659A (en) * 1997-12-24 2000-11-28 Nortel Networks Limited Fast forward link power control in a code division multiple access system
US6532252B1 (en) * 1998-06-13 2003-03-11 Samsung Electronics, Co., Ltd. Device and method for measuring non-orthogonal noise power for CDMA communication system
KR100277761B1 (ko) 1998-06-25 2001-01-15 윤종용 셀룰러 시스템에서 이동 단말기의 탐색 범위설정 방법
US6456646B1 (en) * 1998-11-30 2002-09-24 Ericsson Inc. Methods and systems for detecting codewords with intersymbol interference and imperfect timing
FR2789534B1 (fr) * 1999-02-04 2001-06-08 Cit Alcatel Procede d'estimation du rapport signal a bruit d'un signal numerique recu par un recepteur de radiocommunications
US6687238B1 (en) * 1999-03-10 2004-02-03 Qualcomm Incorporated CDMA signal transmission control
SE513609C2 (sv) 1999-05-12 2000-10-09 Ericsson Telefon Ab L M Förfarande i ett telekommunikationssystem
CN100454773C (zh) * 1999-06-11 2009-01-21 诺基亚公司 执行干扰估计的方法和装置
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
EP1197027A1 (en) * 1999-07-27 2002-04-17 Nokia Corporation A method for noise energy estimation
EP1173963A1 (en) * 1999-12-29 2002-01-23 Koninklijke Philips Electronics N.V. Communication systems using hadamard coding
AU7324401A (en) * 2000-07-10 2002-01-21 Interdigital Tech Corp Code power measurement for dynamic channel allocation
US20030021271A1 (en) * 2001-04-03 2003-01-30 Leimer Donald K. Hybrid wireless communication system
US7330446B2 (en) * 2001-09-21 2008-02-12 Industrial Technology Research Institute Closed-loop power control method for a code-division multiple-access cellular system
US7986672B2 (en) * 2002-02-25 2011-07-26 Qualcomm Incorporated Method and apparatus for channel quality feedback in a wireless communication
AU2002250773A1 (en) * 2002-03-22 2003-10-08 Huawei Technologies Co., Ltd. A self-adapting weighted space time transmitting diversity method and system thereof
US7129753B2 (en) * 2004-05-26 2006-10-31 Infineon Technologies Ag Chip to chip interface
US8498590B1 (en) * 2006-04-04 2013-07-30 Apple Inc. Signal transmitter linearization
JP4763539B2 (ja) * 2006-07-21 2011-08-31 富士通株式会社 無線システム、無線送信機および無線受信機
US8831530B2 (en) 2012-04-30 2014-09-09 Samsung Electronics Co., Ltd. Communication system with transmission power estimation mechanism and method of operation thereof
CN104168225A (zh) * 2013-05-20 2014-11-26 普天信息技术研究院有限公司 噪声方差的估计方法
KR102214914B1 (ko) * 2014-12-12 2021-02-10 삼성전자주식회사 직교 시퀀스를 이용한 노이즈 전력 추정에 기초한 패킷 검출 방법 및 송, 수신기
US9838170B2 (en) * 2015-09-17 2017-12-05 Taiwan Semiconductor Manufacturing Co., Ltd. Root non-orthogonal frequency division multiplexing (RNOFDM)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4261054A (en) * 1977-12-15 1981-04-07 Harris Corporation Real-time adaptive power control in satellite communications systems
US4901307A (en) * 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US4811357A (en) * 1988-01-04 1989-03-07 Paradyne Corporation Secondary channel for digital modems using spread spectrum subliminal induced modulation
FR2639781B1 (fr) * 1988-11-25 1991-01-04 Alcatel Thomson Faisceaux Procede d'entrelacement pour dispositif de transmission numerique
US5056109A (en) * 1989-11-07 1991-10-08 Qualcomm, Inc. Method and apparatus for controlling transmission power in a cdma cellular mobile telephone system
US5101501A (en) * 1989-11-07 1992-03-31 Qualcomm Incorporated Method and system for providing a soft handoff in communications in a cdma cellular telephone system
US5109390A (en) * 1989-11-07 1992-04-28 Qualcomm Incorporated Diversity receiver in a cdma cellular telephone system
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5159608A (en) * 1991-08-28 1992-10-27 Falconer David D Method and apparatus for using orthogonal coding in a communication system
US5216692A (en) * 1992-03-31 1993-06-01 Motorola, Inc. Method and apparatus for adjusting a power control threshold in a communication system

Also Published As

Publication number Publication date
BR9306623A (pt) 1998-12-08
SE9404427D0 (sv) 1994-12-21
JPH07508383A (ja) 1995-09-14
DE4392993C2 (de) 1996-09-26
JP3205338B2 (ja) 2001-09-04
FI946045A0 (fi) 1994-12-22
KR950702358A (ko) 1995-06-19
CA2137460A1 (en) 1994-01-06
FI946045A (fi) 1994-12-22
US5297161A (en) 1994-03-22
DE4392993T1 (de) 1995-06-01
WO1994000926A1 (en) 1994-01-06
MX9303881A (es) 1994-01-31
KR970008172B1 (ko) 1997-05-21
CA2137460C (en) 1998-08-18

Similar Documents

Publication Publication Date Title
SE9404427L (sv) Förfarande och anordning för effektestimering i ett ortogonalt kodat kommunikationssystem
EA199800064A1 (ru) Способ и устройство для определения уровня сигнала в системе связи с расширенным спектром, имеющей переменную скорость данных
DE3582131D1 (de) Identifiziervorrichtung.
SE9703096L (sv) Förfarande och anordning för avkodning av en kodad signal
FR2716313B1 (fr) Dispositif de commande de la polarisation d'un amplificateur.
CA2109412A1 (en) Method and Apparatus for Estimating Signal Weighting Parameters in a Receiver
MY112635A (en) Code detection apparatus
FI20010543A0 (fi) Menetelmä informaatioelementin reunan määrittämiseksi, järjestelmä ja elektoniikkalaite
DK0524253T3 (da) Kommunikationssystem
SE9503950L (sv) Förfarande för rörelseestimering
SE9603698L (sv) Metod och anordning för att reducera kvantiseringsbrus
ES8507746A1 (es) Una instalacion de comunicaciones de datos por infrarrojos
ATE22514T1 (de) Differenzpulskodemodulationsuebertragungssystem.
JPS57184331A (en) Noise eliminating device
JPS57161747A (en) Method and device for selecting decomposition condition
TW362308B (en) Signal processing method
EP0600091A4 (en) RECEIVER FOR DIGITAL SIGNALS.
JPS5338380A (en) Peak detecting circuit
JPS5553940A (en) Error detection system
SE9401293L (sv) Sätt att bestämma absoluta lägen för seismiska eller akustiska transienta signalkällor
JPS57147349A (en) Information transmitter
JPS5372560A (en) Binary coded circuit
TSIVIDIS Nonuniform pulse code modulation encoding using integrated circuit techniques[Ph. D. Thesis]
JPS5799067A (en) Data communication method
JPS57168168A (en) Level detection circuit

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 9404427-8