CA2302372A1 - Diversite dans le temps dans un systeme amrt - Google Patents

Diversite dans le temps dans un systeme amrt Download PDF

Info

Publication number
CA2302372A1
CA2302372A1 CA002302372A CA2302372A CA2302372A1 CA 2302372 A1 CA2302372 A1 CA 2302372A1 CA 002302372 A CA002302372 A CA 002302372A CA 2302372 A CA2302372 A CA 2302372A CA 2302372 A1 CA2302372 A1 CA 2302372A1
Authority
CA
Canada
Prior art keywords
time slot
slot
repeat
time
channel
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA002302372A
Other languages
English (en)
Inventor
Heikki Berg
Risto Paatelma
Mika Tuutijarvi
Seppo Alanara
Pekka Kaasila
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Oyj
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2302372A1 publication Critical patent/CA2302372A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
    • 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
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1835—Buffer management
    • H04L1/1845—Combining techniques, e.g. code combining
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/189—Transmission or retransmission of more than one copy of a message

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Artificial Intelligence (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

L'invention concerne un système de radiotéléphone à accès multiple à répartition dans le temps (AMRT) dans lequel une station de base émet un créneau et une répétition du créneau en direction d'une station mobile, laquelle reçoit de manière sélective les créneaux, détecte les informations temporaires à partir de chaque créneau et fournit une combinaison des informations temporaires à un décodeur de canal, comme un décodeur de Viterbi, afin d'amplifier le fonctionnement de ce décodeur. Dans un autre aspect de l'invention, on décrit un procédé de fonctionnement d'un système de communication sans fil, lequel comprend les étapes consistant: (a) à émettre un créneau temporel et une répétition de ce créneau temporel en direction d'un canal, (b) à recevoir le créneau temporel et la répétition de ce créneau temporel au moyen d'un dispositif de réception en diversité, (c) à traiter le créneau temporel et la répétition reçus au moyen respectivement d'un premier et d'un second estimateur de canal, et (d) à exécuter une détection conjuguée en fonction d'une technique minimisant une mesure métrique.
CA002302372A 1997-09-18 1998-09-16 Diversite dans le temps dans un systeme amrt Abandoned CA2302372A1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US6070797P 1997-09-18 1997-09-18
US60/060,707 1997-09-18
US8895098P 1998-06-11 1998-06-11
US60/088,950 1998-06-11
US10844698A 1998-07-01 1998-07-01
US09/108,446 1998-07-01
PCT/EP1998/005908 WO1999014885A2 (fr) 1997-09-18 1998-09-16 Diversite dans le temps dans un systeme amrt

Publications (1)

Publication Number Publication Date
CA2302372A1 true CA2302372A1 (fr) 1999-03-25

Family

ID=27369886

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002302372A Abandoned CA2302372A1 (fr) 1997-09-18 1998-09-16 Diversite dans le temps dans un systeme amrt

Country Status (5)

Country Link
CN (1) CN1271485A (fr)
AU (1) AU9541098A (fr)
BR (1) BR9812246A (fr)
CA (1) CA2302372A1 (fr)
WO (1) WO1999014885A2 (fr)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6493338B1 (en) 1997-05-19 2002-12-10 Airbiquity Inc. Multichannel in-band signaling for data communications over digital wireless telecommunications networks
US6850740B1 (en) 1999-05-17 2005-02-01 Telefonaktiebolaget Lm Ericsson Time and frequency diversity in FH/TDD systems
FR2794333B1 (fr) * 1999-05-28 2001-07-13 Sagem Procede de gestion d'un reseau de radiotelephonie et equipement de commmunication pour la mise en oeuvre du procede
US6400724B1 (en) * 1999-07-16 2002-06-04 Qualcomm Inc. Method and apparatus for efficient data transmission in a voice-over-data communication system
US7230941B2 (en) * 2001-04-26 2007-06-12 Qualcomm Incorporated Preamble channel decoding
GB0203539D0 (en) * 2002-02-14 2002-04-03 Nokia Corp Broadband digital transmission networks
US7487430B2 (en) 2002-03-27 2009-02-03 Samsung Electronics Co., Ltd. Apparatus and method for receiving packet data control channel in a mobile communication system
US6944142B2 (en) 2003-05-13 2005-09-13 Interdigital Technology Corporation Method for soft and softer handover in time division duplex code division multiple access (TDD-CDMA) networks
WO2005041469A1 (fr) * 2003-10-23 2005-05-06 Philips Intellectual Property & Standards Gmbh Decodage et reconstruction de donnees
EP1730859B1 (fr) * 2004-03-30 2008-08-06 Matsushita Electric Industrial Co., Ltd. Systeme de communication radio et systeme de portier phonique l'utilisant
JP2006115159A (ja) 2004-10-14 2006-04-27 Matsushita Electric Ind Co Ltd ドアフォンシステム
US7508810B2 (en) 2005-01-31 2009-03-24 Airbiquity Inc. Voice channel control of wireless packet data communications
GB0506539D0 (en) * 2005-03-31 2005-05-04 Koninkl Philips Electronics Nv Method and apparatus for transmitting data, and a communication system
ITRM20050327A1 (it) * 2005-06-23 2006-12-24 Finmeccanica Spa Sistema per comuncazioni digitali, via satellite o radio, protetto contro attenuazioni periodiche o non.
US7924934B2 (en) * 2006-04-07 2011-04-12 Airbiquity, Inc. Time diversity voice channel data communications
CN101542915B (zh) * 2006-11-21 2013-10-16 三星电子株式会社 移动通信系统中从基站接收系统信息的方法和装置
US20080225776A1 (en) * 2007-03-14 2008-09-18 Nokia Corporation Apparatus, methods, and computer program products providing unsolicited HARQ for system information in the downlink
CN101809979B (zh) 2007-10-20 2014-02-19 爱尔比奎特公司 用于车辆上的数据通信的方法
WO2009122307A2 (fr) 2008-03-31 2009-10-08 Marvell Israel ( Misl) Ltd. Procédé et appareil de décodage
US8594138B2 (en) 2008-09-15 2013-11-26 Airbiquity Inc. Methods for in-band signaling through enhanced variable-rate codecs
US7983310B2 (en) 2008-09-15 2011-07-19 Airbiquity Inc. Methods for in-band signaling through enhanced variable-rate codecs
CN101404564B (zh) * 2008-11-14 2011-04-27 南京航空航天大学 8psk格雷映射的一种软解调方法
CN101771644B (zh) * 2008-12-31 2012-12-05 北京信威通信技术股份有限公司 一种基于联合检测和软判决译码的信号接收方法
US8073440B2 (en) 2009-04-27 2011-12-06 Airbiquity, Inc. Automatic gain control in a personal navigation device
US8418039B2 (en) 2009-08-03 2013-04-09 Airbiquity Inc. Efficient error correction scheme for data transmission in a wireless in-band signaling system
US8249865B2 (en) 2009-11-23 2012-08-21 Airbiquity Inc. Adaptive data transmission for a digital in-band modem operating over a voice channel
US8848825B2 (en) 2011-09-22 2014-09-30 Airbiquity Inc. Echo cancellation in wireless inband signaling modem
CN106793476B (zh) * 2017-03-03 2020-02-07 北京信息科技大学 一种利用多电平信号传输抑制串扰的方法
CN107240135B (zh) * 2017-04-28 2020-07-10 深圳大学 基于DeBruijn序列的三维图像重建方法及装置
CN108768903B (zh) * 2018-03-21 2021-01-26 西安电子科技大学 基于crdsa类协议的低轨道卫星随机接入系统多用户检测方法
JP2022542299A (ja) * 2019-07-30 2022-09-30 サフラン パッセンジャー イノベーションズ， エルエルシー ユニキャスト用のタイムスロットをアロケーションするためのシステムおよび方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0381949A1 (fr) * 1989-02-01 1990-08-16 Siemens Aktiengesellschaft Combinateur en diversité
US5481572A (en) * 1994-08-02 1996-01-02 Ericsson Inc. Method of and apparatus for reducing the complexitiy of a diversity combining and sequence estimation receiver
US5614914A (en) * 1994-09-06 1997-03-25 Interdigital Technology Corporation Wireless telephone distribution system with time and space diversity transmission for determining receiver location

Also Published As

Publication number Publication date
BR9812246A (pt) 2000-07-18
WO1999014885A3 (fr) 1999-06-03
AU9541098A (en) 1999-04-05
CN1271485A (zh) 2000-10-25
WO1999014885A2 (fr) 1999-03-25

Similar Documents

Publication Publication Date Title
CA2302372A1 (fr) Diversite dans le temps dans un systeme amrt
US6332006B1 (en) Apparatus and methods for providing high-penetration messaging in wireless communications systems
US6330288B1 (en) Coding/modulation scheme selection technique
US8411600B2 (en) Method and apparatus for acknowledging a reception of a data packet in a CDMA communication system
US5570369A (en) Reduction of power consumption in a mobile station
KR100601065B1 (ko) 심볼 누산을 이용하여 시간 효율적인 재송신을 하기 위한방법 및 장치
AU2003214677B2 (en) Apparatus and Method for Receiving Packet Data Control Channel in a Mobile Communication System
US6463042B1 (en) Mobile station having power saving mode for packet data
JP4453491B2 (ja) 移動局
US6728323B1 (en) Baseband processors, mobile terminals, base stations and methods and systems for decoding a punctured coded received signal using estimates of punctured bits
US9118472B2 (en) Method of transmitting control information in wireless communication system
JP2001515666A (ja) 複数の符号レートを用いるセルラー通信システム
KR20010073079A (ko) 추론적 지식을 이용한 코덱 모드 디코딩
EP1796302B1 (fr) Terminal de communication mobile pour supporter des techniques d'adaptation à lien étendu et procédé correspondant
US7289476B2 (en) Method and system to increase QoS and range in a multicarrier system
US20020044612A1 (en) Interleaving method and system
US7305609B2 (en) M-ary modulation for wireless systems
CN112219430A (zh) 用于延长电池寿命的nb-iot ue中的物理层下行链路重复的预测接收方法
US20100302991A1 (en) System and process for transmit diversity in satellite phones
WO2013034327A1 (fr) Procédé et appareil de décodage d'un message répété
MXPA00002327A (en) Time diversity in a tdma system
Kumagai et al. Bit significance selective frequency diversity transmission

Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued