BRPI0909054A2 - rastreamento de tempo e frequência de móvel atento a movimento - Google Patents

rastreamento de tempo e frequência de móvel atento a movimento

Info

Publication number
BRPI0909054A2
BRPI0909054A2 BRPI0909054A BRPI0909054A BRPI0909054A2 BR PI0909054 A2 BRPI0909054 A2 BR PI0909054A2 BR PI0909054 A BRPI0909054 A BR PI0909054A BR PI0909054 A BRPI0909054 A BR PI0909054A BR PI0909054 A2 BRPI0909054 A2 BR PI0909054A2
Authority
BR
Brazil
Prior art keywords
error
component
error component
access terminal
clock
Prior art date
Application number
BRPI0909054A
Other languages
English (en)
Inventor
Shah Jigneshkumar
Chadha Kanu
Tsai Ming-Chang
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 BRPI0909054A2 publication Critical patent/BRPI0909054A2/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
    • H04B7/2675—Frequency synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0035—Synchronisation arrangements detecting errors in frequency or phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

rastreamento de tempo e frequência de móvel atento a movimento. um método é fornecido para compensar o erro de 5 oscilação do relógio e erro de movimento de um terminal de acesso. um erro de link direto é obtido que é atribuível a pelo menos um primeiro componente de erro (por exemplo, o erro de oscilação do relógio) e um segundo componente de erro (por exemplo, erro do movimento). o primeiro 10 componente de erro e o segundo componente de erro são estimados com base no erro do link direto obtido. um relógio de recepção do terminal de acesso é compensado com base em uma combinação do primeiro componente de erro e segundo componente de erro. um relógio de transmissão do 15 terminal de acesso é compensado com base na diferença entre o primeiro componente de erro e segundo componente de erro. 0 erro do link direto pode incluir um erro de sincronização de temporização entre o terminal de acesso e um ponto de acesso assim como um erro de sincronização de frequência 20 entre uma frequência do link direto e uma frequência de referência de banda base. 0
BRPI0909054A 2008-03-06 2009-02-23 rastreamento de tempo e frequência de móvel atento a movimento BRPI0909054A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US3434708P 2008-03-06 2008-03-06
US12/261,648 US7957343B2 (en) 2008-03-06 2008-10-30 Motion-aware mobile time and frequency tracking
PCT/US2009/034925 WO2009111206A1 (en) 2008-03-06 2009-02-23 Motion-aware mobile time and frequency tracking

Publications (1)

Publication Number Publication Date
BRPI0909054A2 true BRPI0909054A2 (pt) 2019-03-06

Family

ID=41053469

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0909054A BRPI0909054A2 (pt) 2008-03-06 2009-02-23 rastreamento de tempo e frequência de móvel atento a movimento

Country Status (10)

Country Link
US (1) US7957343B2 (pt)
EP (1) EP2269413A1 (pt)
JP (1) JP5335823B2 (pt)
KR (1) KR101148430B1 (pt)
CN (1) CN101960895B (pt)
BR (1) BRPI0909054A2 (pt)
CA (1) CA2714465C (pt)
RU (1) RU2459386C2 (pt)
TW (1) TWI390881B (pt)
WO (1) WO2009111206A1 (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2448889B (en) * 2007-05-01 2009-09-23 Nec Corp Uplink timing recovery
JP5153395B2 (ja) * 2008-03-17 2013-02-27 株式会社日立製作所 セルラ無線通信システムの基地局および移動局
US8744518B2 (en) 2012-04-09 2014-06-03 Apple Inc. Mechanism for reducing time away from packet switched operation in a single radio solution
US9226251B2 (en) 2012-11-30 2015-12-29 Qualcomm Incorporated Systems and methods for optimization of synchronization message transmission intervals in a peer-to-peer network
US9473339B2 (en) 2013-04-12 2016-10-18 Futurewei Technologies, Inc. Performing upstream symbol alignment under FEXT
CN105323029B (zh) * 2015-11-12 2017-11-21 哈尔滨工程大学 基于声链路测距、测速的水声通信动态时钟同步方法
US10057869B2 (en) * 2016-11-17 2018-08-21 Electronics And Telecommunications Research Institute Network synchronization apparatus and method of time division multiple access (TDMA)-based mesh network satellite communication system
US10931317B2 (en) * 2018-01-17 2021-02-23 Cubic Corporation Frequency re-bander with UE and doppler correction
US10871575B2 (en) * 2018-10-26 2020-12-22 Viasat, Inc. Multi-mode frequency compensation in mobile terminals
CN111447674A (zh) * 2020-04-03 2020-07-24 南京大鱼半导体有限公司 节点的同步方法、装置、存储介质和节点
US20240023051A1 (en) * 2020-12-08 2024-01-18 Nokia Technologies Oy Frequency reference adjustment compensation for positioning

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5742908A (en) * 1994-09-14 1998-04-21 Ericsson Inc. Frequency error correction in a satellite-mobile communications system
CA2238753C (en) * 1995-12-07 2002-02-05 Vistar Telecommunications Inc. Method of improving efficiency of radio channel usage in overlapping coverage areas
US5943606A (en) * 1996-09-30 1999-08-24 Qualcomm Incorporated Determination of frequency offsets in communication systems
JP3492177B2 (ja) * 1997-12-15 2004-02-03 松下電器産業株式会社 Ｃｄｍａ方式移動体通信機
JP2001103033A (ja) * 1999-09-30 2001-04-13 Hitachi Denshi Ltd データ伝送装置
US6944188B2 (en) * 2001-02-21 2005-09-13 Wi-Lan, Inc. Synchronizing clocks across a communication link
US7403507B2 (en) * 2001-06-18 2008-07-22 Texas Instruments Incorporated System and method for recovering system time in direct sequence spread spectrum communications
US7027815B2 (en) * 2002-09-05 2006-04-11 Qualcomm, Incorporated Compensating for frequency shift and timing shift in frequency and time tracking loops based on mobile unit velocity
WO2005004329A1 (en) 2003-07-02 2005-01-13 Philips Intellectual Property & Standards Gmbh Method and arrangement for frequency synchronization of a mobile station with a base station in a mobile communication system
US7668243B2 (en) * 2004-05-18 2010-02-23 Texas Instruments Incorporated Audio and video clock synchronization in a wireless network
US7724717B2 (en) * 2005-07-22 2010-05-25 Sri International Method and apparatus for wireless network security
US20090029657A1 (en) * 2005-08-01 2009-01-29 Mitsubishi Electric Corporation Auto frequency control method
US7957341B2 (en) * 2005-12-09 2011-06-07 Neocific, Inc. Frequency correction in a multi-carrier communication system
JP4892286B2 (ja) * 2006-06-29 2012-03-07 京セラ株式会社 移動体無線通信装置及び送信周波数制御方法

Also Published As

Publication number Publication date
EP2269413A1 (en) 2011-01-05
TWI390881B (zh) 2013-03-21
KR20100131476A (ko) 2010-12-15
KR101148430B1 (ko) 2012-05-21
JP2011514101A (ja) 2011-04-28
CN101960895B (zh) 2013-08-28
US7957343B2 (en) 2011-06-07
CA2714465A1 (en) 2009-09-11
WO2009111206A1 (en) 2009-09-11
CA2714465C (en) 2014-07-15
TW201004185A (en) 2010-01-16
US20090225662A1 (en) 2009-09-10
RU2010140789A (ru) 2012-04-20
JP5335823B2 (ja) 2013-11-06
CN101960895A (zh) 2011-01-26
RU2459386C2 (ru) 2012-08-20

Similar Documents

Publication Publication Date Title
BRPI0909054A2 (pt) rastreamento de tempo e frequência de móvel atento a movimento
BR112012011514A2 (pt) "rastreamento de tempo e/ou frequência assistido por terminal de acesso"
BR112012009276A2 (pt) aquisição de tempo e frequência e rastreamento para sistemas sem dio ofdma
NO20076018L (no) Lagringsstabile opplosninger av optiske hvitemidler
BR112019001617A2 (pt) nós de comunicação, métodos, meio legível por computador e portadora para posicionamento em uma rede de comunicação sem fio
WO2011064154A3 (en) Composition for metal electroplating comprising leveling agent
BRPI0810411B8 (pt) derivados de sulfonil amida para o tratamento de crescimento celular anormal, seu sos, bem como composição farmacêutica
NO20075298L (no) Novel thiophene derivatives as sphingosine-1-phosphate-1 receptor agonists
CR20140203A (es) Derivados de octahidro-pirrolo (3,4-b) pirrol
EA201100992A1 (ru) Карбазолкарбоксамидные соединения, применимые в качестве ингибиторов киназы
CO6450669A2 (es) Composiciones y metodos para modular la senda de señalizacion de wnt
BRPI0613429A2 (pt) inibidores de histona desacetilase
UY32407A (es) Hidrocloruro de n-{(1s)-2-amino-1-[(3-fluorofenil)metil]etil}-5-cloro-4-(4-cloro-1-metil-1h-pirazol-5-il)-2-tiofenocarboxamida cristalino
NO20071309L (no) Fremgangsmate for ekspansjon
BRPI1012770B8 (pt) derivados de tiofeno
BR112014002909A2 (pt) método e sistema para a implementação de uma compensação para um atraso de assimetria de uma ligação 1588
NO20083491L (no) Metode for fremstilling av sulfonamid-substituerts alkoholer og mellomprodukter for slike
CR11824A (es) Derivados heterocíclicos de la urea y sus métodos de empleo
UY31712A1 (es) Nuevos derivados de diosmetina, su procedimiento de preparacion y las composiciones farmacéuticas que los contienen
BR112012020501A2 (pt) estação móvel e estação de base de rádio
BR112012026181A2 (pt) método para sincronizar transmissões de acesso múltiplo por divisão de tempo (tdma) de modo direto
BR112022019297A2 (pt) Aprimoramentos de eficiência de sinalização em redes não terrestres
EA201001087A1 (ru) Новые дигидроиндолоновые соединения, способ их получения и фармацевтические композиции, содержащие их
UY29221A1 (es) Derivados de octahidropirrolo(3,4-c)pirrol
BRPI0517390A (pt) processo para a preparação de derivados de [1,4,5]-oxadiazepina

Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B15K Others concerning applications: alteration of classification

Free format text: A CLASSIFICACAO ANTERIOR ERA: H04W 56/00

Ipc: H04B 7/26 (1974.07), H04L 7/027 (1990.01), H04W 56

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

Free format text: REFERENTE A 11A ANUIDADE.

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 2554 DE 17/12/2019.

B350 Update of information on the portal [chapter 15.35 patent gazette]