BRPI0808115B1 - Método para a coexistência e indicador de coexistência - Google Patents
Método para a coexistência e indicador de coexistência Download PDFInfo
- Publication number
- BRPI0808115B1 BRPI0808115B1 BRPI0808115-8A BRPI0808115A BRPI0808115B1 BR PI0808115 B1 BRPI0808115 B1 BR PI0808115B1 BR PI0808115 A BRPI0808115 A BR PI0808115A BR PI0808115 B1 BRPI0808115 B1 BR PI0808115B1
- Authority
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- Brazil
- Prior art keywords
- map
- signal
- symbol
- rxe
- expected
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1215—Wireless traffic scheduling for collaboration of different radio technologies
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
quadro WiMAX e intervalos | de dormir. | ||||||
Como | uma | alternativa | ou | acréscimo | ao bloco FFT | 322 da | |
Figura | 3 | (ou | o MCU 321), | um | bloco de | co-variância | (CoVAR) |
Claims (5)
- REIVINDICAÇÕES1. Método para a coexistência de um receptor (117) de acesso múltiplo por divisão de freqüência ortogonal (OFDMA) com um transmissor com base em quadro síncrono (115) dentro de uma estação móvel (110), caracterizado por compreender:receber um sinal (890) de protocolo de acesso de mídia estimado (MAP') que indica quando se espera que uma mensagem MAP (222, 242) seja recebida pelo receptor OFDMA (117);enviar o sinal MAP' para o transmissor com base em quadro síncrono (115) para desligar o transmissor com base em quadro síncrono quando se esperar que uma mensagem MAP seja recebida.
2. Método, de acordo com a reivindicação 1, caracterizado pelo fato do sinal MAP' ser um sinal indicador MAP a partir do receptor OFDMA (117). 3. Método, de acordo com a reivindicação 1, caracterizado pelo fato do receptor compreender:receber um sinal (252) ativador do receptor OFDMA (RXE) que indica quando se espera que uma mensagem MAP seja recebida pelo receptor OFDMA (117) e também indicando quando se espera que dados no enlace descendente (135) sejam recebidos pelo receptor OFDMA (117);detectar um símbolo MAP (260) dentro do sinal RXE; e produzir o sinal MAP'.4. Método, de acordo com a reivindicação 3, caracterizado pelo fato da detecção compreender:determinar uma freqüência do símbolo MAP;observar uma fase do símbolo MAP; e encontrar a duração do símbolo MAP.5. Método, de acordo com a reivindicação 4,Petição 870190108412, de 25/10/2019, pág. 44/61 - 2/5 caracterizado pelo fato da determinação de uma freqüência do símbolo MAP compreender:aguardar (510) que um sinal de ativação do transmissor (TXE) seja baixo;amostrar (520) transições do sinal RXE indo de altopara-baixo por um período de tempo de observação predeterminado;encontrar comprimentos de tempo entre transições;determinar (550) um período do símbolo MAP (TMAP) para ser um modo estatístico dos comprimentos de tempo entre transições.6. Método, de acordo com a reivindicação 4, caracterizado pelo fato da determinação de uma freqüência do símbolo MAP e da observação de uma fase do símbolo MAP compreender:tirar (620) uma Transformada Rápida de Fourier das amostras do sinal RXE; e fixar a freqüência do símbolo MAP e da fase do símbolo MAP como sendo a um termo não-DC máximo da Transformada Rápida de Fourier.7. Método, de acordo com a reivindicação 4, caracterizado pelo fato da determinação de uma fase do símbolo MAP compreender:calcular (1210) uma correlação cruzada entre o sinal RXE e um padrão MAP esperado; e fixar a fase do símbolo MAP para ser quando um derivativo da correlação cruzada mudar de um valor positivo para um valor não-positivo.8. Método, de acordo com a reivindicação 7, caracterizado pelo fato do encontro de uma duração de umPetição 870190108412, de 25/10/2019, pág. 45/61
- 3/5 símbolo MAP compreender:mapear o valor mais alto da correlação cruzada a uma porcentagem de uma duração de um símbolo MAP no padrão MAP esperado.9. Método, de acordo com a reivindicação 4, caracterizado pelo fato da determinação de uma freqüência do símbolo MAP e da observação de uma fase do símbolo MAP compreender:convolver (1420) o sinal RXE com um símbolo MAP esperado para produzir um resultado de convolução;analisar (1450, 1470) inclinações de pelo menos três amostras do resultado da convolução tomado ao redor de um intervalo MAP e ajustar o intervalo MAP com base nas inclinações; e repetir a etapa de analise até o intervalo MAP localizar
um máximo do resultado da convolução. a reivindicação 4, 10. Método, de acordo com caracterizado pelo fato do encontro de uma duração de um símbolo MAP compreender: medir a duração de um sinal RXE alto na freqüência do símbolo MAP e na fase do símbolo MAP. 11. Método, de acordo com a reivindicação 4, caracterizado pelo fato da produção de um sinal MAP' compreender:criar um sinal MAP' tendo a freqüência determinada do símbolo MAP, a fase observada do símbolo MAP, e a duração encontrada do símbolo MAP.12. Método, de acordo com a reivindicação 3, caracterizado pelo fato do envio do sinal MAP'compreender:determinar que o transmissor com base em quadro síncronoPetição 870190108412, de 25/10/2019, pág. 46/61 - 4/5 (115) não está transmitindo um quadro de prioridade e enviar o sinal RXE para o transmissor com base em quadro síncrono (115) para desligar o transmissor com base no quadro síncrono quando se espera que uma mensagem MAP seja recebida e quando se espera que dados no enlace descendente sejam recebidos.13. Indicador de coexistência (300), caracterizado por compreender:uma unidade observadora (320) para observar um sinal (252) de ativação de receptor (RXE) de um transceptor (117) de acesso múltiplo por divisão de freqüência ortogonal (OFDMA) que opera a uma banda de freqüência e determinar a freqüência, duração, e fase de um símbolo (260) de protocolo de acesso de mídia (MAP) dentro do sinal RXE;uma unidade estimadora (350) para produzir um sinal (890) de protocolo de acesso de mídia estimado (MAP') da freqüência, duração, e fase do símbolo MAP; o sinal MAP' estimado indicando quando se espera receber uma mensagem MAP (222, 242); e uma unidade lógica de decisão (370) para produzir um sinal de desligamento (390) para desligar um transmissor de um transceptor co-localizado com base em quadro síncrono (115) que opera próximo da banda de freqüência quando o sinal MAP' estiver ativo.14. Indicador de coexistência, de acordo com a reivindicação 13, caracterizado pelo fato da unidade observadora (320) compreender:um bloco de Transformada Rápida de Fourier (322) para determinar a freqüência do símbolo MAP e a fase do símbolo MAP.15. Indicador de coexistência, de acordo com aPetição 870190108412, de 25/10/2019, pág. 47/61
- 5/5 reivindicação 13, caracterizado pelo fato da unidade observadora (320) compreender:um laço de retardo fechado (325) para determinar a freqüência do símbolo MAP e a fase do símbolo MAP.16. Indicador de coexistência, de acordo com a reivindicação 13, caracterizado pelo fato da unidade observadora (320) compreender:um bloco de co-variância (327) para determinar a fase do símbolo MAP.17. Indicador de coexistência, de acordo com a reivindicação 13, caracterizado pelo fato da freqüência ser um valor predeterminado.18. Indicador de coexistência, de acordo com a reivindicação 13, caracterizado pelo fato da duração ser um valor predeterminado.19. Indicador de coexistência, de acordo com a reivindicação 13, caracterizado pelo fato da unidade lógica de decisão (370) compreender:uma entrada de sinal de prioridade para receber um sinal de prioridade ativo (394) quando o transmissor estiver transmitindo um quadro de prioridade.20. Indicador de coexistência, de acordo com a reivindicação 13, caracterizado pelo fato do sinal de desligar fechado estar ativo quando o sinal RXE estiver ativo.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/680,067 | 2007-02-28 | ||
US11/680,067 US8204036B2 (en) | 2007-02-28 | 2007-02-28 | Method and apparatus for coexistence |
PCT/US2008/053555 WO2008106302A2 (en) | 2007-02-28 | 2008-02-11 | Method and apparatus for coexistence |
Publications (2)
Publication Number | Publication Date |
---|---|
BRPI0808115A2 BRPI0808115A2 (pt) | 2014-06-17 |
BRPI0808115B1 true BRPI0808115B1 (pt) | 2020-03-31 |
Family
ID=39715807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0808115-8A BRPI0808115B1 (pt) | 2007-02-28 | 2008-02-11 | Método para a coexistência e indicador de coexistência |
Country Status (7)
Country | Link |
---|---|
US (1) | US8204036B2 (pt) |
EP (1) | EP2140579B1 (pt) |
KR (1) | KR101089482B1 (pt) |
CN (1) | CN101622802B (pt) |
BR (1) | BRPI0808115B1 (pt) |
MX (1) | MX2009009142A (pt) |
WO (1) | WO2008106302A2 (pt) |
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CN101622802A (zh) | 2010-01-06 |
WO2008106302A3 (en) | 2008-12-31 |
MX2009009142A (es) | 2009-09-03 |
WO2008106302A2 (en) | 2008-09-04 |
KR101089482B1 (ko) | 2011-12-02 |
CN101622802B (zh) | 2013-03-27 |
US8204036B2 (en) | 2012-06-19 |
KR20090104130A (ko) | 2009-10-05 |
EP2140579B1 (en) | 2016-09-07 |
US20080205365A1 (en) | 2008-08-28 |
BRPI0808115A2 (pt) | 2014-06-17 |
EP2140579A2 (en) | 2010-01-06 |
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