Abstract
The invention claims a mobile communication system a downlink signal configuring method and device and using the synchronization and cell searching method and device thereof. a downlink frame with a plurality of symbols wherein arranged pilot subcarriers relative to the time axis and the frequency axis is distributed. position is maximized and self-correlation of effective symbol of the downlink signal by using the cyclic prefix of the downlink signal and estimating initial symbol synchronization and initial frequency synchronization and by using the estimated symbols contained in the pilot subcarriers estimated cell search and integer frequency synchronization. using the estimated cell search result and estimating fine symbol synchronization fine frequency synchronization a downlink frame synchronization. the downlink frequency and time tracking by using the inserted pilot sub-carrier position in the downlink frame set for cell tracking by using pilot subcarriers repeatedly fine symbol synchronization tracking and fine frequency synchronization tracking to perform downlink frequency and time tracking.
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 Number | ||||||
| 5G | 05/01/2020 | ISLD-201912-077 | ETRI |
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Yes | Basis Patent | |||
| 5G | 26/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| 5G | 27/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
Specification Information
Specification Information
Technologies
Family Information
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | |||||||
| KR100594597B1 | 4G | 30/01/2013 | ISLD-201302-002 | ETRI | Yes | Basis Patent | ||||
| KR100594597B1 | 5G | 05/01/2020 | ISLD-201912-077 | ETRI |
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No | Family Member | |||
| KR100594597B1 | 5G | 26/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| KR100594597B1 | 5G | 27/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| KR20050039263A | 4G | 30/01/2013 | ISLD-201302-002 | ETRI | Yes | Basis Patent | ||||
| KR20050039263A | 5G | 05/01/2020 | ISLD-201912-077 | ETRI |
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No | Family Member | |||
| KR20050039263A | 5G | 26/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| KR20050039263A | 5G | 27/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| AU2003284727A1 | 4G | 30/01/2013 | ISLD-201302-002 | ETRI | No | Family Member | ||||
| AU2003284727A1 | 5G | 05/01/2020 | ISLD-201912-077 | ETRI |
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| AU2003284727A1 | 5G | 26/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| AU2003284727A1 | 5G | 27/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| CN1879321B | 5G | 05/01/2020 | ISLD-201912-077 | ETRI |
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Yes | Basis Patent | |||
| CN1879321B | 5G | 26/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| CN1879321B | 5G | 27/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| EP1695459A1 | 4G | 30/01/2013 | ISLD-201302-002 | ETRI | Yes | Family Member | ||||
| EP1695459A1 | 5G | 05/01/2020 | ISLD-201912-077 | ETRI |
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| EP1695459A1 | 5G | 26/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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| EP1695459A1 | 5G | 27/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| EP1695459A4 | 4G | 30/01/2013 | ISLD-201302-002 | ETRI | Yes | Family Member | ||||
| EP1695459A4 | 5G | 05/01/2020 | ISLD-201912-077 | ETRI |
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| EP1695459A4 | 5G | 26/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| EP1695459A4 | 5G | 27/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| US2007133386A1 | 4G | 30/01/2013 | ISLD-201302-002 | ETRI | No | Family Member | ||||
| US2007133386A1 | 5G | 05/01/2020 | ISLD-201912-077 | ETRI |
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No | Family Member | |||
| US2007133386A1 | 5G | 26/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| US2007133386A1 | 5G | 27/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| US7764593B2 | 4G | 30/01/2013 | ISLD-201302-002 | ETRI | No | Family Member | ||||
| US7764593B2 | 5G | 05/01/2020 | ISLD-201912-077 | ETRI |
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No | Family Member | |||
| US7764593B2 | 5G | 26/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| US7764593B2 | 5G | 27/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| WO2005041448A1 | 4G | 30/01/2013 | ISLD-201302-002 | ETRI | No | Family Member | ||||
| WO2005041448A1 | 5G | 05/01/2020 | ISLD-201912-077 | ETRI |
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No | Family Member | |||
| WO2005041448A1 | 5G | 26/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| WO2005041448A1 | 5G | 27/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| USRE47278E | 5G | 05/01/2020 | ISLD-201912-077 | ETRI |
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No | Family Member | |||
| USRE47278E | 5G | 26/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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Yes | Basis Patent | |||
| USRE47278E | 5G | 27/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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Yes | Basis Patent | |||
| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Synchronization
Product
Use Cases
Wireless communication
Services
Claim
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
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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.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.