EA200601638A1 - Система и способ адаптивной модуляции - Google Patents

Система и способ адаптивной модуляции

Info

Publication number
EA200601638A1
EA200601638A1 EA200601638A EA200601638A EA200601638A1 EA 200601638 A1 EA200601638 A1 EA 200601638A1 EA 200601638 A EA200601638 A EA 200601638A EA 200601638 A EA200601638 A EA 200601638A EA 200601638 A1 EA200601638 A1 EA 200601638A1
Authority
EA
Eurasian Patent Office
Prior art keywords
modulation
transmitted symbol
symbol
coding
adaptive modulation
Prior art date
Application number
EA200601638A
Other languages
English (en)
Other versions
EA009631B1 (ru
Inventor
Эрик Дж. Данн
Мервин Л. Гриндал
Кит Барнс
Original Assignee
Некстнет Уайрлесс, Инк.
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 Некстнет Уайрлесс, Инк. filed Critical Некстнет Уайрлесс, Инк.
Publication of EA200601638A1 publication Critical patent/EA200601638A1/ru
Publication of EA009631B1 publication Critical patent/EA009631B1/ru

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0012—Modulated-carrier systems arrangements for identifying the type of modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H04L27/26132—Structure of the reference signals using repetition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H04L27/26134—Pilot insertion in the transmitter chain, e.g. pilot overlapping with data, insertion in time or frequency domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • H04L27/2659—Coarse or integer frequency offset determination and synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0022—PN, e.g. Kronecker

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Система беспроводной связи сконфигурирована для адаптивной модуляции передаваемого символа. Конкретная модуляция и/или кодирование однозначно определяются, а относящиеся к ним данные вкладываются в передаваемый символ. Приемник извлекает пилот-сигналы из переданного символа и выполняет корреляционный анализ с целью определения конкретного типа модуляции/кодирования, который использовался для данного переданного символа. Это обеспечивает возможность адаптивной модуляции для каждого символа. Базовая станция, осуществляющая связь с множеством периферийных абонентов, может применять различную модуляцию/кодирование для каждого абонента, в зависимости от условий в канале.
EA200601638A 2004-03-05 2005-03-04 Система и способ адаптивной модуляции EA009631B1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55051704P 2004-03-05 2004-03-05
PCT/US2005/007213 WO2005086729A2 (en) 2004-03-05 2005-03-04 System and method for adaptive modulation

Publications (2)

Publication Number Publication Date
EA200601638A1 true EA200601638A1 (ru) 2007-04-27
EA009631B1 EA009631B1 (ru) 2008-02-28

Family

ID=34976115

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200601638A EA009631B1 (ru) 2004-03-05 2005-03-04 Система и способ адаптивной модуляции

Country Status (12)

Country Link
US (1) US7702031B2 (ru)
EP (1) EP1776793A2 (ru)
JP (1) JP2007528164A (ru)
KR (1) KR20070053655A (ru)
CN (1) CN101076986A (ru)
AU (1) AU2005220798A1 (ru)
BR (1) BRPI0508408A (ru)
CA (1) CA2558240A1 (ru)
EA (1) EA009631B1 (ru)
IL (1) IL177680A0 (ru)
MX (1) MXPA06010110A (ru)
WO (1) WO2005086729A2 (ru)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2840724B1 (en) 2005-09-30 2019-11-20 Apple Inc. MIMO communication system
US8130726B2 (en) 2005-12-20 2012-03-06 Qualcomm Incorporated Coarse bin frequency synchronization in a communication system
US8238370B2 (en) * 2008-01-17 2012-08-07 Mediatek Inc. Methods for transmitting system information bit streams and communication apparatuses utilizing the same
US8750091B2 (en) * 2008-03-31 2014-06-10 Qualcomm Incorporated Apparatus and methods for update of symbol information
KR20100003206A (ko) * 2008-06-30 2010-01-07 한국전자통신연구원 디지털 멀티미디어 방송 송수신 장치 및 방법
EP2254297A1 (en) * 2009-05-19 2010-11-24 Thomson Licensing Method and apparatus for physical layer header detection
US8331488B2 (en) * 2009-10-13 2012-12-11 Qualcomm Incorporated Methods and apparatus for communicating information using non-coherent and coherent modulation
US8325697B2 (en) 2009-10-13 2012-12-04 Qualcomm Incorporated Methods and apparatus for selecting and transmitting pilots
US8867482B2 (en) * 2010-12-10 2014-10-21 Panasonic Intellectual Property Corporation Of America Signal generation method and signal generation device
US10135562B2 (en) 2015-05-28 2018-11-20 Huawei Technologies Co., Ltd. Apparatus and method for link adaptation in uplink grant-less random access
US11251915B2 (en) * 2017-05-15 2022-02-15 Qualcomm Incorporated Techniques for uplink transmissions
CN110191072A (zh) * 2019-06-10 2019-08-30 浙江大华技术股份有限公司 一种正交幅度调制类型的识别方法、接收机及发送机

Family Cites Families (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5600672A (en) * 1991-03-27 1997-02-04 Matsushita Electric Industrial Co., Ltd. Communication system
US5282204A (en) * 1992-04-13 1994-01-25 Racotek, Inc. Apparatus and method for overlaying data on trunked radio
US5548805A (en) * 1994-08-23 1996-08-20 Racotek, Inc. Data communication system using spectral overlay
US5809083A (en) * 1994-11-23 1998-09-15 At&T Wireless Services, Inc. Differentially encoded pilot word system and method for wireless transmissions of digital data
US6128276A (en) * 1997-02-24 2000-10-03 Radix Wireless, Inc. Stacked-carrier discrete multiple tone communication technology and combinations with code nulling, interference cancellation, retrodirective communication and adaptive antenna arrays
US6359923B1 (en) * 1997-12-18 2002-03-19 At&T Wireless Services, Inc. Highly bandwidth efficient communications
US6496490B1 (en) 1998-07-09 2002-12-17 Lucent Technologies Inc. Method for dynamically allocating carriers in a wireless packet network, with reuse of carriers
US6700866B1 (en) * 1999-06-23 2004-03-02 At&T Wireless Services, Inc. Methods and apparatus for use in obtaining frequency synchronization in an OFDM communication system
US6463107B1 (en) * 1999-07-01 2002-10-08 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatuses for synchronization and modulation type detection
JP4284774B2 (ja) * 1999-09-07 2009-06-24 ソニー株式会社 送信装置、受信装置、通信システム、送信方法及び通信方法
AU779339B2 (en) 1999-10-22 2005-01-20 Google Technology Holdings LLC Fixed OFDM wireless man utilizing CPE having internal antenna
US6717934B1 (en) * 1999-10-22 2004-04-06 Nokia Corporation Wireless telecommunication system having improved recognition of modulation type in GPRS
US7099413B2 (en) * 2000-02-07 2006-08-29 At&T Corp. Method for near optimal joint channel estimation and data detection for COFDM systems
US6477210B2 (en) * 2000-02-07 2002-11-05 At&T Corp. System for near optimal joint channel estimation and data detection for COFDM systems
JP4409743B2 (ja) * 2000-02-25 2010-02-03 パナソニック株式会社 無線通信装置及び無線通信方式
JP3826653B2 (ja) * 2000-02-25 2006-09-27 Ｋｄｄｉ株式会社 無線通信システムのサブキャリア割当方法
WO2001067702A1 (en) * 2000-03-07 2001-09-13 Vyyo, Ltd. Adaptive downstream modulation scheme for broadband wireless access systems
US6877043B2 (en) * 2000-04-07 2005-04-05 Broadcom Corporation Method for distributing sets of collision resolution parameters in a frame-based communications network
JP2001339758A (ja) * 2000-05-26 2001-12-07 Matsushita Electric Ind Co Ltd 無線基地局装置及び無線通信方法
US6701129B1 (en) * 2000-09-27 2004-03-02 Nortel Networks Limited Receiver based adaptive modulation scheme
US7023933B2 (en) * 2000-10-20 2006-04-04 Matsushita Electric Industrial Co., Ltd. Radio communication apparatus
EP1207662B1 (en) * 2000-11-20 2003-09-17 Sony International (Europe) GmbH OFDM system with antenna diversity in the transmitter and pre-equalisation
EP2259479B1 (en) * 2000-11-20 2019-04-17 Sony Deutschland GmbH Adaptive subcarrier loading
US6947748B2 (en) 2000-12-15 2005-09-20 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
US6769093B1 (en) * 2000-12-15 2004-07-27 Conexant Systems, Inc. Synchronization of a communications system
US6987819B2 (en) * 2000-12-29 2006-01-17 Motorola, Inc. Method and device for multiple input/multiple output transmit and receive weights for equal-rate data streams
US7164669B2 (en) * 2001-01-19 2007-01-16 Adaptix, Inc. Multi-carrier communication with time division multiplexing and carrier-selective loading
WO2002071770A1 (en) * 2001-03-06 2002-09-12 Beamreach Networks, Inc. Adaptive communications methods for multiple user packet radio wireless networks
US6940827B2 (en) * 2001-03-09 2005-09-06 Adaptix, Inc. Communication system using OFDM for one direction and DSSS for another direction
US6496535B2 (en) * 2001-03-23 2002-12-17 Navini Networks, Inc. Method and system for effective channel estimation in a telecommunication system
GB2377586B (en) * 2001-07-06 2005-06-29 Ipwireless Inc System and method for channel transport format allocation in a wireless communication system
GB2376842A (en) * 2001-06-18 2002-12-24 Ipwireless Inc Integration of network control functions in a wireless network
GB2377585B (en) * 2001-07-06 2005-08-24 Ipwireless Inc Communication resource access request
JP3607643B2 (ja) * 2001-07-13 2005-01-05 松下電器産業株式会社 マルチキャリア送信装置、マルチキャリア受信装置、およびマルチキャリア無線通信方法
US20030018840A1 (en) * 2001-07-18 2003-01-23 Chandler Billy J. Power bus information transmission system and method of data transmission
DE10135162A1 (de) * 2001-07-19 2003-02-06 Creavis Tech & Innovation Gmbh Antimikrobielle Kleister
GB2378328B (en) * 2001-08-01 2005-07-13 Ipwireless Inc AGC scheme and receiver for use in a wireless communication system
KR100703295B1 (ko) 2001-08-18 2007-04-03 삼성전자주식회사 이동통신시스템에서 안테나 어레이를 이용한 데이터 송/수신 장치 및 방법
BR0212206A (pt) * 2001-08-30 2004-09-21 Ntt Docomo Inc Sistema e processo de radiotransmissão, e aparelho transmissor e aparelho receptor usados no sistema de radiotransmissão
GB2380371A (en) * 2001-10-01 2003-04-02 Ipwireless Inc Method and arrangement for use in a single user detector for a CDMA multi-path system using a finite impulse response filter
US7773699B2 (en) 2001-10-17 2010-08-10 Nortel Networks Limited Method and apparatus for channel quality measurements
GB2381170A (en) * 2001-10-19 2003-04-23 Ipwireless Inc Method and arrangement for asynchronous processing of CCTrCH data
GB0125390D0 (en) * 2001-10-23 2001-12-12 Ipwireless Inc Resource allocation in a packet-based radio communication system
GB2381416A (en) * 2001-10-24 2003-04-30 Ipwireless Inc Allocation of resources in a packet based radio communications system employing shared channels for data transfer
GB2381406A (en) * 2001-10-24 2003-04-30 Ipwireless Inc Packet data queuing and processing
GB2381422A (en) * 2001-10-24 2003-04-30 Ipwireless Inc Code division multiple access receiver
JP3836019B2 (ja) * 2001-11-21 2006-10-18 松下電器産業株式会社 受信装置、送信装置及び送信方法
US7304939B2 (en) * 2001-12-03 2007-12-04 Nortel Networks Limited Communication using simultaneous orthogonal signals
US6754169B2 (en) 2001-12-13 2004-06-22 Motorola, Inc. Method and system of operation for a variable transmission mode multi-carrier communication system
US7126996B2 (en) * 2001-12-28 2006-10-24 Motorola, Inc. Adaptive transmission method
DE60206356T2 (de) * 2002-04-16 2006-05-11 Sony International (Europe) Gmbh Orthogonale Frequenzmultiplexierung (OFDM) mit Kanalprediktion
US7260054B2 (en) * 2002-05-30 2007-08-21 Denso Corporation SINR measurement method for OFDM communications systems
US9125061B2 (en) 2002-06-07 2015-09-01 Apple Inc. Systems and methods for channel allocation for forward-link multi-user systems
US7551546B2 (en) * 2002-06-27 2009-06-23 Nortel Networks Limited Dual-mode shared OFDM methods/transmitters, receivers and systems
US7136393B2 (en) * 2002-07-19 2006-11-14 Northrop Grumman Coporation Information transmission system and method of data transmission
US20040015630A1 (en) * 2002-07-19 2004-01-22 Boolos Timothy L. Connection system for connecting data transmitting and receiving devices to data transmission medium
JP4043335B2 (ja) * 2002-10-08 2008-02-06 株式会社日立国際電気 受信装置
JP4143489B2 (ja) * 2003-07-09 2008-09-03 キヤノン株式会社 情報再生装置
JP4100304B2 (ja) * 2003-09-10 2008-06-11 株式会社日立製作所 無線通信システム及びその復調方法並びにデータレート制御方法
KR100950668B1 (ko) * 2003-09-30 2010-04-02 삼성전자주식회사 직교 주파수 분할 다중 접속 방식을 사용하는 통신 시스템에서 업링크 파일럿 신호 송수신 장치 및 방법
US6985535B2 (en) * 2003-10-31 2006-01-10 Motorola, Inc. Channel condition estimation for pilot coefficient selection
US7570555B2 (en) * 2004-01-09 2009-08-04 Panasonic Corporation Digital data demodulator
US11152971B2 (en) * 2004-02-02 2021-10-19 Charles Abraham Frequency modulated OFDM over various communication media

Also Published As

Publication number Publication date
CN101076986A (zh) 2007-11-21
CA2558240A1 (en) 2005-09-22
BRPI0508408A (pt) 2007-07-24
AU2005220798A2 (en) 2005-09-22
IL177680A0 (en) 2006-12-31
KR20070053655A (ko) 2007-05-25
AU2005220798A1 (en) 2005-09-22
JP2007528164A (ja) 2007-10-04
WO2005086729A3 (en) 2007-04-19
US7702031B2 (en) 2010-04-20
MXPA06010110A (es) 2007-03-07
EA009631B1 (ru) 2008-02-28
EP1776793A2 (en) 2007-04-25
WO2005086729A2 (en) 2005-09-22
US20050195908A1 (en) 2005-09-08

Similar Documents

Publication Publication Date Title
EA200601638A1 (ru) Система и способ адаптивной модуляции
RU2013151005A (ru) Мобильный терминал, базовая станция радиосвязи и система и способ мобильной связи
MY154765A (en) System and method of an in-band modem for data communications over digital wireless communication networks
RU2009123319A (ru) Передача пилот-сигнала для системы беспроводной связи с ортогональным частотным разделением каналов
MY154316A (en) System and method of an in-band modem for data communications over digital wireless communication networks
ATE484119T1 (de) Ressourcenblockzuordnung für wiederholte symbole
MY154336A (en) Apparatus and method for control and data multiplexing in communication systems
MY157386A (en) System and method of an in-band modem for data communications over digital wireless communication networks
DK2030380T4 (da) Fremgangsmåde og enhed til effektiv rapportering af planlægningsinformationer (scheduling information) i et trådløst telekommunikationssystem
DE602005018258D1 (de) Datenkommunikationsvorrichtung mit mehreren antennen
RU2012114789A (ru) Способ и устройство для передачи сигнала нисходящей линии связи в системе беспроводной связи мimo
TW200642331A (en) Methods and apparatus for mitigating multi-antenna correlation effect in communication systems
TW200620872A (en) Wireless communication system with improved broadcast coverage
MY155068A (en) System and method of an in-band modem for data communications over digital wireless communication networks
RU2007148550A (ru) Система и способ радиосвязи
DE60221297D1 (de) Konstellationsneuanordnung für übertragungsdiversitätsarten
RU2013139153A (ru) Устройство радиопередачи и способ радиопередачи
TW200704052A (en) Constant broadcast channel timing in a wireless communication system
ATE524045T1 (de) Übermitteln von steuerinformationen in einem mobilkommunikationssystem
TW200746699A (en) Method of transmitting/receiving LTE system information in a wireless communication system
RU2012148140A (ru) Базовая радиостанция и мобильная станция
TW200701807A (en) System, apparatus and method of varying channel bandwidth
TW200616361A (en) Method and apparatus to vary power level of training signal
RU2012146543A (ru) Система и способ для передачи в сигналах управляющей информации в сети мобильной связи
FI3573397T3 (fi) Käyttäjäpääte ja langaton tiedonsiirtomenetelmä

Legal Events

Date Code Title Description
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AZ KZ RU