CA2302372A1 - Diversite dans le temps dans un systeme amrt - Google Patents
Diversite dans le temps dans un systeme amrt Download PDFInfo
- 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
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.
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)
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)
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 |
-
1998
- 1998-09-16 CN CN 98809307 patent/CN1271485A/zh active Pending
- 1998-09-16 AU AU95410/98A patent/AU9541098A/en not_active Abandoned
- 1998-09-16 WO PCT/EP1998/005908 patent/WO1999014885A2/fr active Application Filing
- 1998-09-16 CA CA002302372A patent/CA2302372A1/fr not_active Abandoned
- 1998-09-16 BR BR9812246-0A patent/BR9812246A/pt not_active IP Right Cessation
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 |