Abstract
The invention claims a downlink signal configuring method and device in a mobile communication system and using synchronous and cell searching method and device thereof. a downlink frame with a plurality of symbols wherein the oppositely arranged pilot subcarriers on the time axis and the frequency axis is distributed. maximizing the effective symbol of downlink signal self-correlation by using the cyclic prefix of a downlink signal of the position the estimated initial symbol synchronization and initial frequency synchronous and through using the estimated symbols contained in the pilot subcarriers the estimated cell search and integer multiple frequency synchronous. using the estimated cell search result and estimating fine symbol synchronous and fine frequency synchronous downlink frame synchronization. the downlink frequency and time tracking through using insertion position set of pilot subcarriers in the downlink frame cell tracking by using pilot subcarriers repeating fine symbol synchronization tracking and fine frequency synchronization tracking to downlink the 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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| 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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| AU2003284727A1 | 5G | 27/12/2022 | ISLD-202212-074 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| CN1879321A | 5G | 05/01/2020 | ISLD-201912-077 | ETRI |
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Yes | Basis Patent | |||
| CN1879321A | 5G | 26/01/2021 | ISLD-202101-057 | Electronics and Telecommunications Research Institute |
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No | Family Member | |||
| CN1879321A | 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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| 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 | |||
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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.