BR112016022034A2 - Método e aparelho para determinar a presença de um sinal de portadora secundária em um sinal de soma no domínio do tempo - Google Patents
Método e aparelho para determinar a presença de um sinal de portadora secundária em um sinal de soma no domínio do tempoInfo
- Publication number
- BR112016022034A2 BR112016022034A2 BR112016022034A BR112016022034A BR112016022034A2 BR 112016022034 A2 BR112016022034 A2 BR 112016022034A2 BR 112016022034 A BR112016022034 A BR 112016022034A BR 112016022034 A BR112016022034 A BR 112016022034A BR 112016022034 A2 BR112016022034 A2 BR 112016022034A2
- Authority
- BR
- Brazil
- Prior art keywords
- determining
- secondary carrier
- time domain
- carrier signal
- carrier wave
- Prior art date
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/06—Demodulator circuits; Receiver circuits
- H04L27/066—Carrier recovery circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/0026—Interference mitigation or co-ordination of multi-user interference
- H04J11/0036—Interference mitigation or co-ordination of multi-user interference at the receiver
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/16—Spectrum analysis; Fourier analysis
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
- G06F17/141—Discrete Fourier transforms
- G06F17/142—Fast Fourier transforms, e.g. using a Cooley-Tukey type algorithm
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
- G08G5/0017—Arrangements for implementing traffic-related aircraft activities, e.g. arrangements for generating, displaying, acquiring or managing traffic information
- G08G5/0026—Arrangements for implementing traffic-related aircraft activities, e.g. arrangements for generating, displaying, acquiring or managing traffic information located on the ground
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
- G08G5/0095—Aspects of air-traffic control not provided for in the other subgroups of this main group
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/06—Demodulator circuits; Receiver circuits
-
- 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
- H04L27/2649—Demodulators
- H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
- H04L27/2651—Modification of fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators for performance improvement
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/0026—Interference mitigation or co-ordination of multi-user interference
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Discrete Mathematics (AREA)
- Data Mining & Analysis (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Databases & Information Systems (AREA)
- Power Engineering (AREA)
- Algebra (AREA)
- Noise Elimination (AREA)
- Mobile Radio Communication Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Interface Circuits In Exchanges (AREA)
- Rehabilitation Tools (AREA)
Abstract
DETECÇÃO DE TRANSMISSÃO DE CHAMADAS SIMULTÂNEAS. A presente invenção refere-se a um método de determinação da presença de um sinal de onda portadora secundário em um sinal de soma de domínio do tempo que inclui um sinal de onda portadora primário, em que o método compreende: a transformação do sinal de soma no domínio da frequência; a extração de pelo menos um pico que corresponde a um tom heteródino do sinal de soma transformado; a determinação da presença de um sinal de onda portadora secundário no sinal de soma com base em pelo menos um dito pico. Um aparelho correspondente também é divulgado.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1405259.1 | 2014-03-24 | ||
| GB1405259.1A GB2522083B (en) | 2014-03-24 | 2014-03-24 | Simultaneous call transmission detection |
| PCT/GB2015/050878 WO2015145138A2 (en) | 2014-03-24 | 2015-03-24 | Simultaneous call transmission detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BR112016022034A2 true BR112016022034A2 (pt) | 2017-08-15 |
| BR112016022034B1 BR112016022034B1 (pt) | 2023-08-01 |
Family
ID=
Also Published As
| Publication number | Publication date |
|---|---|
| GB2522083B (en) | 2016-02-10 |
| ES2872332T3 (es) | 2021-11-02 |
| AU2015237965B2 (en) | 2019-06-20 |
| AU2015237965A1 (en) | 2016-11-10 |
| US10263721B2 (en) | 2019-04-16 |
| US20190199462A1 (en) | 2019-06-27 |
| CN106664148A (zh) | 2017-05-10 |
| EP3123648A2 (en) | 2017-02-01 |
| DK3123648T3 (da) | 2021-06-28 |
| WO2015145138A3 (en) | 2015-11-19 |
| WO2015145138A2 (en) | 2015-10-01 |
| GB201405259D0 (en) | 2014-05-07 |
| PL3123648T3 (pl) | 2021-11-22 |
| US20170155460A1 (en) | 2017-06-01 |
| CN106664148B (zh) | 2019-12-03 |
| PT3123648T (pt) | 2021-06-04 |
| EP3123648B1 (en) | 2021-05-05 |
| GB2522083A (en) | 2015-07-15 |
| HRP20211153T1 (hr) | 2021-10-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: AS CLASSIFICACOES ANTERIORES ERAM: H04L 1/00 , G01R 23/16 Ipc: H04L 27/06 (2006.01), H04L 27/26 (2006.01), H04J 1 |
|
| B350 | Update of information on the portal [chapter 15.35 patent gazette] | ||
| 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: 20 (VINTE) ANOS CONTADOS A PARTIR DE 24/03/2015, OBSERVADAS AS CONDICOES LEGAIS |