BRPI0520826A2 - método de demodulação adaptavel 8psk no sistema edge - Google Patents

método de demodulação adaptavel 8psk no sistema edge

Info

Publication number
BRPI0520826A2
BRPI0520826A2 BRPI0520826-2A BRPI0520826A BRPI0520826A2 BR PI0520826 A2 BRPI0520826 A2 BR PI0520826A2 BR PI0520826 A BRPI0520826 A BR PI0520826A BR PI0520826 A2 BRPI0520826 A2 BR PI0520826A2
Authority
BR
Brazil
Prior art keywords
counter
signal
8psk
channel
perform
Prior art date
Application number
BRPI0520826-2A
Other languages
English (en)
Inventor
Xiong Gang
Original Assignee
Zte Corp
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 Zte Corp filed Critical Zte Corp
Publication of BRPI0520826A2 publication Critical patent/BRPI0520826A2/pt
Publication of BRPI0520826B1 publication Critical patent/BRPI0520826B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2338—Demodulator circuits; Receiver circuits using non-coherent demodulation using sampling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H04L25/0216—Channel estimation of impulse response with estimation of channel length
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

Método de demodulação adaptável 8PSK no sistema EDGE. Que inclui: módulo de contra-rotação de sinal que contra-rotaciona os sinais recebidos 1 e Q sob taxas de amostragens multi-periádicas; um módulo de estimativa de parâmetro de canal que executa a correlação móvel ao sinal contra-rotacionado e obtém o parâmetro estimado de canal sob taxas de amostragens multi-periódicas; executar a estimativa conjunta de acordo com o parâmetro estimado de canal, e determinar o avanço do tempo do sinal e da extensão de dispersão efetiva do canal simultaneamente pela sincronização comum e pela sincronização exata; executar a sincronização e subamostragem do sinal contra-rotacionado; executar a filtragem ajustada depuradora do sinal sincronizado e subamostrado; executar a demodulação adaptável 8PSK por meio do estado reduzido de acordo com regras predeterminadas, O método da invenção melhora o desempenho do sistema de banda base quando a extensão de dispersão efetiva do canal é menor e seguramente mantém o desempenho do sistema de banda base inalterado quando a extensão da dispersão do canal é maior na premissa de satisfazer as especificações do protocolo do EDGE.
BRPI0520826A 2005-12-31 2005-12-31 método de demodulação adaptável 8psk no sistema edge BRPI0520826B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2005/002438 WO2007076638A1 (fr) 2005-12-31 2005-12-31 Procede de demodulation 8psk dans un systeme edge

Publications (2)

Publication Number Publication Date
BRPI0520826A2 true BRPI0520826A2 (pt) 2009-06-09
BRPI0520826B1 BRPI0520826B1 (pt) 2018-11-13

Family

ID=38227895

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0520826A BRPI0520826B1 (pt) 2005-12-31 2005-12-31 método de demodulação adaptável 8psk no sistema edge

Country Status (3)

Country Link
CN (1) CN101292485B (pt)
BR (1) BRPI0520826B1 (pt)
WO (1) WO2007076638A1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101662389B (zh) * 2009-10-19 2012-04-18 杭州华三通信技术有限公司 一种统计性能数据的方法及装置
CN103001899B (zh) * 2011-09-15 2016-08-17 京信通信系统（中国）有限公司 用于gsm通信系统的自适应均衡解调方法及装置
CN102739582B (zh) * 2012-06-27 2015-08-12 京信通信系统（广州）有限公司 适用于无线信道的均衡接收方法及系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2669350B2 (ja) * 1994-07-07 1997-10-27 日本電気株式会社 状態数可変最尤系列推定器
CN1142689C (zh) * 2001-04-18 2004-03-17 上海大唐移动通信设备有限公司 一种适用于edge系统的8psk均衡解调实现方法

Also Published As

Publication number Publication date
WO2007076638A1 (fr) 2007-07-12
CN101292485B (zh) 2011-03-02
CN101292485A (zh) 2008-10-22
BRPI0520826B1 (pt) 2018-11-13

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Legal Events

Date Code Title Description
B06G Technical and formal requirements: other requirements [chapter 6.7 patent gazette]

Free format text: ESCLARECA O DEPOSITANTE A DIVERGENCIA EXISTENTE ENTRE O DESENHO DO WO2007/076638 DE 12/07/2007 E OS DESENHOS DA PETICAO INICIAL.

B06H Technical and formal requirements: requirement cancelled [chapter 6.8 patent gazette]

Free format text: ANULACAO DA EXIGENCIA PUBLICADA NA RPI NO 1992 DE 10/03/2009.

B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B15K Others concerning applications: alteration of classification

Ipc: H04L 27/233 (2006.01), H04L 25/02 (2006.01), G06F

B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 13/11/2018, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 15A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2611 DE 19-01-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.