BR112022001880A2 - Sincronização em fase para estimativa de retardo de tempo de ida e volta - Google Patents
Sincronização em fase para estimativa de retardo de tempo de ida e voltaInfo
- Publication number
- BR112022001880A2 BR112022001880A2 BR112022001880A BR112022001880A BR112022001880A2 BR 112022001880 A2 BR112022001880 A2 BR 112022001880A2 BR 112022001880 A BR112022001880 A BR 112022001880A BR 112022001880 A BR112022001880 A BR 112022001880A BR 112022001880 A2 BR112022001880 A2 BR 112022001880A2
- Authority
- BR
- Brazil
- Prior art keywords
- waveform
- phase
- pll
- delay
- round
- 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
- H04L27/26—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
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
- H03L7/104—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using an additional signal from outside the loop for setting or controlling a parameter in the loop
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
- H03L7/23—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/087—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using at least two phase detectors or a frequency and phase detector in the loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/091—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector using a sampling device
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
- H03L7/197—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
- H03L7/1974—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division
- H03L7/1976—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division using a phase accumulator for controlling the counter or frequency divider
-
- 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
- H04L27/2668—Details of algorithms
- H04L27/2669—Details of algorithms characterised by the domain of operation
- H04L27/2672—Frequency domain
-
- 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
- H04L27/2668—Details of algorithms
- H04L27/2673—Details of algorithms characterised by synchronisation parameters
- H04L27/2676—Blind, i.e. without using known symbols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
- H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0015—Synchronization between nodes one node acting as a reference for the others
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
- H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
- H04W56/009—Closed loop measurements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
sincronização em fase para estimativa de retardo de tempo de ida e volta. variações de fase entre uma forma de onda do transmissor (tx) e uma forma de onda do receptor (rx) produzidas por uma malha de sincronismo de fase (pll) tx e uma pll rx, respectivamente, é uma fonte de erro na calibração de retardo de processamento utilizado, por exemplo, em na estimativa do tempo de ida e volta (rtt). embora uma forma de onda tx e uma forma de onda rx possuam um retardo de fase constante enquanto em condições de estado estacionário, durante tempos temporários, por exemplo, na inicialização ou reinicialização, o retardo de fase pode variar tanto quanto 180, o que, em frequências de banda base de 50 mhz, introduz variações aleatórias de retardo de tanto quanto 10 nseg, o que é indesejável para a estimação de posição refinada utilizando rtt. a variação de retardo de fase entre a forma de onda tx e a forma de onda rx pode ser reduzida ou eliminada utilizando um sinal de correção de fase gerado utilizando os sinais de saída da pll tx e da pll rx.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201962884634P | 2019-08-08 | 2019-08-08 | |
US16/683,162 US10931498B1 (en) | 2019-08-08 | 2019-11-13 | Phase synchronization for round trip delay estimation |
PCT/US2020/041233 WO2021025820A1 (en) | 2019-08-08 | 2020-07-08 | Phase synchronization for round trip delay estimation |
Publications (1)
Publication Number | Publication Date |
---|---|
BR112022001880A2 true BR112022001880A2 (pt) | 2022-03-29 |
Family
ID=74499513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112022001880A BR112022001880A2 (pt) | 2019-08-08 | 2020-07-08 | Sincronização em fase para estimativa de retardo de tempo de ida e volta |
Country Status (8)
Country | Link |
---|---|
US (1) | US10931498B1 (pt) |
EP (1) | EP4010985A1 (pt) |
JP (1) | JP2022543394A (pt) |
KR (1) | KR20220041100A (pt) |
CN (1) | CN114175510A (pt) |
BR (1) | BR112022001880A2 (pt) |
TW (1) | TW202110124A (pt) |
WO (1) | WO2021025820A1 (pt) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4078814A1 (en) | 2019-12-20 | 2022-10-26 | Telefonaktiebolaget LM Ericsson (publ) | Multiple pll system with common and difference mode loop filters |
US11070214B1 (en) * | 2020-10-14 | 2021-07-20 | Mellanox Technologies Denmark Aps | Test circuit for a digital phase-locked loop |
TWI793003B (zh) * | 2022-05-05 | 2023-02-11 | 創意電子股份有限公司 | 消除相位雜訊之影響的校正系統與包含其的類比至數位轉換裝置 |
WO2023232254A1 (en) * | 2022-06-02 | 2023-12-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Multiple pll system with pairwise phase difference regulation |
US20240106623A1 (en) * | 2022-09-23 | 2024-03-28 | Qualcomm Incorporated | Phase tracking and correction architecture |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5794119A (en) * | 1995-11-21 | 1998-08-11 | Stanford Telecommunications, Inc. | Subscriber frequency control system and method in point-to-multipoint RF communication system |
US7996704B2 (en) * | 2007-08-21 | 2011-08-09 | Richwave Technology Corp. | Asynchronous first in first out interface and operation method thereof |
US7869782B2 (en) * | 2007-12-14 | 2011-01-11 | Broadcom Corporation | Multi-mode transmit and receive PLL |
US8009786B2 (en) * | 2008-02-26 | 2011-08-30 | Broadcom Corporation | Method for agile region and band conscious frequency planning for wireless transceivers |
US8452241B2 (en) * | 2008-04-04 | 2013-05-28 | Broadcom Corporation | Enhanced granularity operational parameters adjustment of components and modules in a multi-band, multi-standard communication device |
EP2408108A1 (en) * | 2010-07-14 | 2012-01-18 | Telefonaktiebolaget L M Ericsson AB (Publ) | Clocking scheme for a wireless communication device |
US8415999B2 (en) | 2010-07-28 | 2013-04-09 | International Business Machines Corporation | High frequency quadrature PLL circuit and method |
JP5787849B2 (ja) | 2012-08-29 | 2015-09-30 | 三菱電機株式会社 | 周波数シンセサイザ |
US9225507B1 (en) | 2013-06-04 | 2015-12-29 | Pmc-Sierra Us, Inc. | System and method for synchronizing local oscillators |
EP3272016A1 (en) * | 2015-03-20 | 2018-01-24 | Telefonaktiebolaget LM Ericsson (publ) | Fractional plls with low correlation |
US9531323B1 (en) * | 2015-06-24 | 2016-12-27 | Qualcomm Incorporated | Low-power balanced crystal oscillator |
US10935631B2 (en) * | 2018-04-24 | 2021-03-02 | Navico Holding As | Radar transceiver with a switched local oscillator |
-
2019
- 2019-11-13 US US16/683,162 patent/US10931498B1/en active Active
-
2020
- 2020-07-08 WO PCT/US2020/041233 patent/WO2021025820A1/en unknown
- 2020-07-08 KR KR1020227003449A patent/KR20220041100A/ko active Search and Examination
- 2020-07-08 BR BR112022001880A patent/BR112022001880A2/pt unknown
- 2020-07-08 JP JP2022506671A patent/JP2022543394A/ja active Pending
- 2020-07-08 EP EP20746818.2A patent/EP4010985A1/en active Pending
- 2020-07-08 CN CN202080054442.8A patent/CN114175510A/zh active Pending
- 2020-07-17 TW TW109124175A patent/TW202110124A/zh unknown
Also Published As
Publication number | Publication date |
---|---|
WO2021025820A1 (en) | 2021-02-11 |
US10931498B1 (en) | 2021-02-23 |
CN114175510A (zh) | 2022-03-11 |
EP4010985A1 (en) | 2022-06-15 |
US20210044472A1 (en) | 2021-02-11 |
TW202110124A (zh) | 2021-03-01 |
JP2022543394A (ja) | 2022-10-12 |
KR20220041100A (ko) | 2022-03-31 |
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