BRPI0707600A8 - Método e aparelho para a aquisição inicial e busca de célula para um sistema ofdma - Google Patents
Método e aparelho para a aquisição inicial e busca de célula para um sistema ofdmaInfo
- Publication number
- BRPI0707600A8 BRPI0707600A8 BRPI0707600A BRPI0707600A BRPI0707600A8 BR PI0707600 A8 BRPI0707600 A8 BR PI0707600A8 BR PI0707600 A BRPI0707600 A BR PI0707600A BR PI0707600 A BRPI0707600 A BR PI0707600A BR PI0707600 A8 BRPI0707600 A8 BR PI0707600A8
- Authority
- BR
- Brazil
- Prior art keywords
- ofdma
- detection
- initial acquisition
- cell search
- cell
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
- H04J11/0073—Acquisition of primary synchronisation channel, e.g. detection of cell-ID within cell-ID group
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
- H04J11/0093—Neighbour cell search
-
- 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
- H04L27/26136—Pilot sequence conveying additional information
-
- 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
-
- 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
- H04L27/2656—Frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe synchronisation
-
- 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
- H04L27/266—Fine or fractional frequency offset determination and synchronisation
-
- 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
- H04L27/2662—Symbol synchronisation
- H04L27/2663—Coarse synchronisation, e.g. by correlation
-
- 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
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0025—Synchronization between nodes synchronizing potentially movable access points
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Databases & Information Systems (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
MÉTODO E APARELHO PARA A AQUISIÇÃO INICIAL E BUSCA DE CÉLULA PARA UM SISTEMA OFDMA. É fornecido um método e aparelho para transmitir um sinal de acesso múltiplo no domínio da frequência ortogonal (OFDMA) que inclui um sinal de canal de sincronização transmitido dentro de uma parcela localizada de uma largura de banda do sinal OFDMA (818), o sinal de canal de sincronização tendo simetria de domínio de tempo predeterminada dentro da parcela localizada da largura de banda (816) e que inclui informação para fornecer pelo nenos parcialmente informação de identificação de célula (812) . O sinal de canal de sincronização permite uma aquisição inicial e método de busca de célula com baixa carga computacional que fornece detecção de tempo de símbolo OFDMA e detecção de erro de frequência (1112) e detecção de fronteira de quadro e detecção de informação especifica da célula (1114) em um sistema OFDMA que suporta múltiplas larguras de banda do sistema, tanto sistemas sincronizados como não-sincronizados, um índice de célula grande e uma estrutura de símbolo OFDMA com comprimento de prefixo cíclico tanto curto como longo.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/351,306 US7983143B2 (en) | 2006-02-08 | 2006-02-08 | Method and apparatus for initial acquisition and cell search for an OFDMA system |
US11/351.306 | 2006-02-08 | ||
PCT/US2007/061179 WO2007092692A2 (en) | 2006-02-08 | 2007-01-27 | Method and apparatus for initial acquisition and cell search for an ofdma system |
Publications (2)
Publication Number | Publication Date |
---|---|
BRPI0707600A2 BRPI0707600A2 (pt) | 2011-05-10 |
BRPI0707600A8 true BRPI0707600A8 (pt) | 2016-12-06 |
Family
ID=38333933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0707600A BRPI0707600A8 (pt) | 2006-02-08 | 2007-01-27 | Método e aparelho para a aquisição inicial e busca de célula para um sistema ofdma |
Country Status (6)
Country | Link |
---|---|
US (4) | US7983143B2 (pt) |
EP (1) | EP1994663B1 (pt) |
KR (1) | KR101291867B1 (pt) |
CN (2) | CN101379744A (pt) |
BR (1) | BRPI0707600A8 (pt) |
WO (1) | WO2007092692A2 (pt) |
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-
2006
- 2006-02-08 US US11/351,306 patent/US7983143B2/en active Active
-
2007
- 2007-01-27 EP EP07710349.7A patent/EP1994663B1/en active Active
- 2007-01-27 KR KR1020087019339A patent/KR101291867B1/ko active IP Right Grant
- 2007-01-27 BR BRPI0707600A patent/BRPI0707600A8/pt not_active Application Discontinuation
- 2007-01-27 CN CNA2007800049463A patent/CN101379744A/zh active Pending
- 2007-01-27 CN CN201110291077.5A patent/CN102325120B/zh active Active
- 2007-01-27 WO PCT/US2007/061179 patent/WO2007092692A2/en active Application Filing
-
2011
- 2011-07-15 US US13/183,725 patent/US8767525B2/en active Active
- 2011-07-15 US US13/183,729 patent/US20110268079A1/en not_active Abandoned
-
2013
- 2013-07-05 US US13/935,949 patent/US20130294343A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP1994663A2 (en) | 2008-11-26 |
US20110268079A1 (en) | 2011-11-03 |
CN102325120B (zh) | 2014-11-26 |
CN101379744A (zh) | 2009-03-04 |
WO2007092692A3 (en) | 2007-12-21 |
EP1994663B1 (en) | 2018-09-19 |
US8767525B2 (en) | 2014-07-01 |
KR20080101890A (ko) | 2008-11-21 |
BRPI0707600A2 (pt) | 2011-05-10 |
US20070183307A1 (en) | 2007-08-09 |
KR101291867B1 (ko) | 2013-08-07 |
US7983143B2 (en) | 2011-07-19 |
WO2007092692A2 (en) | 2007-08-16 |
US20130294343A1 (en) | 2013-11-07 |
EP1994663A4 (en) | 2014-04-30 |
US20110268104A1 (en) | 2011-11-03 |
CN102325120A (zh) | 2012-01-18 |
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