BR0208490A - Qam com potência quantificada - Google Patents

Qam com potência quantificada

Info

Publication number
BR0208490A
BR0208490A BR0208490-2A BR0208490A BR0208490A BR 0208490 A BR0208490 A BR 0208490A BR 0208490 A BR0208490 A BR 0208490A BR 0208490 A BR0208490 A BR 0208490A
Authority
BR
Brazil
Prior art keywords
power level
quantized
quadrature amplitude
amplitude modulation
ratio
Prior art date
Application number
BR0208490-2A
Other languages
English (en)
Inventor
Stein A Lundby
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0208490A publication Critical patent/BR0208490A/pt

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
    • H04W52/16—Deriving transmission power values from another channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • 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
    • H04W52/322—Power control of broadcast channels

Abstract

"QAM COM POTêNCIA QUANTIFICADA". Em um sistema de comunicação, um método e um equipamento correspondente propiciam processos de modulação e demodulação eficientes. Em um transmissor (100), uma razão do nível de potência de um canal de comunicação para o nível de potência de um canal piloto é quantificada dentro de uma palavra digital finita. é determinada uma distância de modulação de amplitude em quadratura quantificada, em uma constelação de modulação de amplitude em quadratura, com base na razão de nível de potência quantificada. Um sinal é modulado de acordo com uma técnica de modulação de amplitude em quadratura usando-se a distância quantificada e é transmitido para um receptor (160).
BR0208490-2A 2001-03-30 2002-03-29 Qam com potência quantificada BR0208490A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/823,532 US6735247B2 (en) 2001-03-30 2001-03-30 Method and apparatus in a communication system
PCT/US2002/009627 WO2002080402A1 (en) 2001-03-30 2002-03-29 Qam with qantised power

Publications (1)

Publication Number Publication Date
BR0208490A true BR0208490A (pt) 2004-08-24

Family

ID=25239034

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0208490-2A BR0208490A (pt) 2001-03-30 2002-03-29 Qam com potência quantificada

Country Status (11)

Country Link
US (1) US6735247B2 (pt)
EP (1) EP1374441B1 (pt)
JP (1) JP4109119B2 (pt)
KR (1) KR100948750B1 (pt)
CN (1) CN100358251C (pt)
AT (1) ATE340441T1 (pt)
BR (1) BR0208490A (pt)
DE (1) DE60214834T2 (pt)
HK (1) HK1064817A1 (pt)
TW (1) TWI255117B (pt)
WO (1) WO2002080402A1 (pt)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6512925B1 (en) * 1998-12-03 2003-01-28 Qualcomm, Incorporated Method and apparatus for controlling transmission power while in soft handoff
JP3522651B2 (ja) * 2000-05-19 2004-04-26 松下電器産業株式会社 通信端末装置及び復調方法
US20030012226A1 (en) * 2001-07-12 2003-01-16 Allen He Method and apparatus for a blind gain ratio detector
US7260657B2 (en) * 2001-10-02 2007-08-21 Hitachi, Ltd. Serial data transferring apparatus
US7587659B2 (en) * 2002-05-31 2009-09-08 Broadcom Corporation Efficient front end memory arrangement to support parallel bit node and check node processing in LDPC (Low Density Parity Check) decoders
DE10306170A1 (de) * 2003-02-13 2004-09-02 Siemens Ag Verfahren zum Einstellen der Sendeleistungen zweier Kanäle einer Verbindung, Station und Kommunikationssystem
US7793233B1 (en) * 2003-03-12 2010-09-07 Microsoft Corporation System and method for customizing note flags
US7746816B2 (en) 2003-03-13 2010-06-29 Qualcomm Incorporated Method and system for a power control in a communication system
CA2519124A1 (en) * 2003-03-13 2004-09-30 Qualcomm Incorporated Method and system for a data transmission in a communication system
US7454763B2 (en) * 2003-03-26 2008-11-18 Microsoft Corporation System and method for linking page content with a video media file and displaying the links
CN1833370B (zh) * 2003-07-30 2010-05-12 美商内数位科技公司 使用下链传输功率检测进行限制动态范围的下链功率控制
US7712049B2 (en) * 2004-09-30 2010-05-04 Microsoft Corporation Two-dimensional radial user interface for computer software applications
US7788589B2 (en) * 2004-09-30 2010-08-31 Microsoft Corporation Method and system for improved electronic task flagging and management
TWI394382B (zh) * 2004-11-10 2013-04-21 Koninkl Philips Electronics Nv 用以操作一通信系統之方法、一無線電台及一無線通信系統
US7349504B2 (en) * 2005-03-18 2008-03-25 Navini Networks, Inc. Method and system for mitigating interference in communication system
JP2007019594A (ja) * 2005-07-05 2007-01-25 Nec Corp 無線基地局及び送信電力調整方法
US7609754B2 (en) * 2005-08-30 2009-10-27 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for received communication signal processing
US7590167B2 (en) * 2005-08-30 2009-09-15 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for QAM demodulation in a generalized rake receiver
CA2625111C (en) * 2005-10-18 2011-10-04 Zte Corporation A soft demodulating method for 16qam in communication system
US7747557B2 (en) * 2006-01-05 2010-06-29 Microsoft Corporation Application of metadata to documents and document objects via an operating system user interface
US7797638B2 (en) * 2006-01-05 2010-09-14 Microsoft Corporation Application of metadata to documents and document objects via a software application user interface
US20070245223A1 (en) * 2006-04-17 2007-10-18 Microsoft Corporation Synchronizing multimedia mobile notes
US20070245229A1 (en) * 2006-04-17 2007-10-18 Microsoft Corporation User experience for multimedia mobile note taking
US7761785B2 (en) 2006-11-13 2010-07-20 Microsoft Corporation Providing resilient links
TW200904015A (en) * 2007-03-15 2009-01-16 Powercast Corp Multiple frequency transmitter, receiver, and systems thereof
US8155241B2 (en) * 2007-12-21 2012-04-10 Mediatek Inc. System for processing common gain values
US7991421B2 (en) * 2008-01-07 2011-08-02 Alcatel-Lucent Usa Inc. Method of dynamic overhead channel power allocation
CN101515919B (zh) * 2008-02-22 2011-06-15 北京大学 一种数字通信方法
US8374270B2 (en) * 2009-06-17 2013-02-12 Intersil Americas Inc. Constellation detection in a multi-mode QAM communications system
BRPI0924444A2 (pt) * 2009-03-17 2016-01-26 Ericsson Telefon Ab L M método em um terminal móvel configurado para transmitir um sinal de enlace ascendente de multi portadora a uma estação base, terminal móvel, método em uma estação base configurada para receber um sinal de enlace ascendente de multi portadora a partir de um terminal móvel, e, estação base.
EP2341445B1 (en) * 2009-12-30 2017-09-06 Intel Deutschland GmbH Method for high speed data transfer
US8682377B1 (en) 2010-08-26 2014-03-25 Sprint Spectrum L.P. Systems and methods for adjusting the power control settings in a wireless communication network
CN103002558B (zh) * 2011-09-16 2016-08-24 华为技术有限公司 数据发送方法和设备
WO2014100235A1 (en) * 2012-12-18 2014-06-26 Brilliant Points, Inc. System and method for digital signaling and digital storage
US10318158B2 (en) 2012-05-17 2019-06-11 Brilliant Points, Inc. System and method for digital signaling and digital storage
US8860594B2 (en) 2012-05-17 2014-10-14 Brilliant Points, Inc. System and method for digital signaling
US9106470B2 (en) * 2012-12-03 2015-08-11 Qualcomm Incorporated Enhanced decoding and demapping method and apparatus for QAM data signals
KR102614447B1 (ko) * 2019-05-31 2023-12-18 삼성전자 주식회사 데이터의 프레임 길이에 기반하여 uwb 전송 신호의 피크 전압을 조절하는 전자 장치 및 전자 장치의 동작 방법

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679227A (en) * 1985-05-20 1987-07-07 Telebit Corporation Ensemble modem structure for imperfect transmission media
US5315619A (en) * 1992-05-15 1994-05-24 Rca Thomson Licensing Corporation Carrier recovery processor for a QAM television signal
US5799005A (en) * 1996-04-30 1998-08-25 Qualcomm Incorporated System and method for determining received pilot power and path loss in a CDMA communication system
US6101179A (en) * 1997-09-19 2000-08-08 Qualcomm Incorporated Accurate open loop power control in a code division multiple access communication system
US6286994B1 (en) * 1998-04-29 2001-09-11 Qualcomm Incorporated System, method and computer program product for controlling a transmit signal using an expected power level
US6137841A (en) 1998-05-01 2000-10-24 Nortel Networks Corporation Signal power adjustment for QAM communication systems
US6587696B1 (en) * 1998-07-31 2003-07-01 Nokia Mobile Phones Limited Power control technique utilizing forward pilot channel
US6498785B1 (en) * 1998-10-02 2002-12-24 Nokia Mobile Phones Ltd Method and apparatus for power control on a common channel in a telecommunication system
US6377813B1 (en) * 1998-12-03 2002-04-23 Nokia Corporation Forward link closed loop power control for a third generation wideband CDMA system
US6512925B1 (en) * 1998-12-03 2003-01-28 Qualcomm, Incorporated Method and apparatus for controlling transmission power while in soft handoff
KR20010105756A (ko) * 2000-05-18 2001-11-29 김형순 통합 응용 프로그램 인터페이스를 사용한 컴퓨터 전화인터페이스 서비스 프로그램 개발 시스템 및 방법

Also Published As

Publication number Publication date
US20020141505A1 (en) 2002-10-03
KR20030087044A (ko) 2003-11-12
EP1374441B1 (en) 2006-09-20
WO2002080402A1 (en) 2002-10-10
CN1518805A (zh) 2004-08-04
HK1064817A1 (en) 2005-02-04
JP4109119B2 (ja) 2008-07-02
KR100948750B1 (ko) 2010-03-22
JP2004533156A (ja) 2004-10-28
TWI255117B (en) 2006-05-11
DE60214834T2 (de) 2007-06-14
US6735247B2 (en) 2004-05-11
ATE340441T1 (de) 2006-10-15
EP1374441A1 (en) 2004-01-02
DE60214834D1 (de) 2006-11-02
CN100358251C (zh) 2007-12-26

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE 10A. ANUIDADE(S).

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2144 DE 07/02/2012.