Abstract
Disclosed is a downlink signal configuring method and device and synchronization and cell search method and device using the same in a mobile communication system. A downlink frame has plural symbols into which pilot subcarriers are distributively arranged with respect to time and frequency axes. Initial symbol synchronization and initial frequency synchronization are estimated by using a position at which autocorrelation of a cyclic prefix of a downlink signal and a valid symbol of the downlink is maximized and cell search and integer-times frequency synchronization are estimated by using pilot subcarriers included in the estimated symbol. Fine symbol synchronization fine frequency synchronization and downlink frame synchronization is estimated by using an estimated cell search result. Downlink frequency and time tracking is performed cell tracking is performed by using a position set of pilot subcarriers inserted into the downlink frame fine symbol synchronization tracking and fine frequency synchronization tracking are repeated by using the pilot subcarriers to perform the frequency and time tracking of the downlink frame.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Information | ||||||
4G | 31/01/2013 | ISLD-201302-002 | ETRI | No | Family Member | ||||
5G | 06/01/2020 | ISLD-201912-077 | ETRI |
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No | Family Member | |||
5G | 27/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
5G | 28/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member |
Specification Information
Specification Information
Technologies
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Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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KR100594597B1 | 4G | 31/01/2013 | ISLD-201302-002 | ETRI | Yes | Basis Patent | ||||
KR100594597B1 | 5G | 06/01/2020 | ISLD-201912-077 | ETRI |
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No | Family Member | |||
KR100594597B1 | 5G | 27/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
KR100594597B1 | 5G | 28/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
KR20050039263A | 4G | 31/01/2013 | ISLD-201302-002 | ETRI | Yes | Basis Patent | ||||
KR20050039263A | 5G | 06/01/2020 | ISLD-201912-077 | ETRI |
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No | Family Member | |||
KR20050039263A | 5G | 27/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
KR20050039263A | 5G | 28/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
AU2003284727A1 | 4G | 31/01/2013 | ISLD-201302-002 | ETRI | No | Family Member | ||||
AU2003284727A1 | 5G | 06/01/2020 | ISLD-201912-077 | ETRI |
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No | Family Member | |||
AU2003284727A1 | 5G | 27/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
AU2003284727A1 | 5G | 28/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
CN1879321A | 5G | 06/01/2020 | ISLD-201912-077 | ETRI |
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Yes | Basis Patent | |||
CN1879321A | 5G | 27/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
CN1879321A | 5G | 28/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
CN1879321B | 5G | 06/01/2020 | ISLD-201912-077 | ETRI |
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Yes | Basis Patent | |||
CN1879321B | 5G | 27/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
CN1879321B | 5G | 28/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
EP1695459A1 | 4G | 31/01/2013 | ISLD-201302-002 | ETRI | Yes | Family Member | ||||
EP1695459A1 | 5G | 06/01/2020 | ISLD-201912-077 | ETRI |
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No | Family Member | |||
EP1695459A1 | 5G | 27/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
EP1695459A1 | 5G | 28/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
EP1695459A4 | 4G | 31/01/2013 | ISLD-201302-002 | ETRI | Yes | Family Member | ||||
EP1695459A4 | 5G | 06/01/2020 | ISLD-201912-077 | ETRI |
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No | Family Member | |||
EP1695459A4 | 5G | 27/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
EP1695459A4 | 5G | 28/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
US2007133386A1 | 4G | 31/01/2013 | ISLD-201302-002 | ETRI | No | Family Member | ||||
US2007133386A1 | 5G | 06/01/2020 | ISLD-201912-077 | ETRI |
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No | Family Member | |||
US2007133386A1 | 5G | 27/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
US2007133386A1 | 5G | 28/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
WO2005041448A1 | 4G | 31/01/2013 | ISLD-201302-002 | ETRI | No | Family Member | ||||
WO2005041448A1 | 5G | 06/01/2020 | ISLD-201912-077 | ETRI |
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No | Family Member | |||
WO2005041448A1 | 5G | 27/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
WO2005041448A1 | 5G | 28/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
USRE47278E | 5G | 06/01/2020 | ISLD-201912-077 | ETRI |
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No | Family Member | |||
USRE47278E | 5G | 27/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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Yes | Basis Patent | |||
USRE47278E | 5G | 28/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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Yes | Basis Patent |
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
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Family member:related patents or applications that share a common priority or original filing.