Abstract
The invention claims a self-adaptive pilot of MIMO-OFDM system is inserted. transmitting entity in each protocol data unit (PDU) sends the basic pilot symbols. in the normal (or most of) signal path condition receiving entity can use the base pilot frequency symbol to implement adequately accurate channel response the MIMO channel estimation. transmitting entity according to need e.g. based on channel conditions and/or other factors selectively sending additional pilot frequency symbol. additional pilot symbols can be self-adaptively almost in any symbol cycle is inserted in PDU. receiving entity can use the additional pilot frequency symbol to obtain improved signal path response estimation. transmitting entity for transmitting indicating signaling of additional pilot frequency symbol is being sent. The signaling can be embedded by a pilot symbol of a group of pilot frequency subband transmission carrier wave pilot frequency symbol in carrier pilot symbols transmitted in the most part of the PDU. The signaling designates whether the additional pilot frequency symbol is being transmitted or possible other relative information.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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5G | 05/12/2019 | ISLD-201912-057 | QUALCOMM INC |
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EP1774736A2 | 4G | 08/04/2012 | ISLD-201204-008 | QUALCOMM INC | Yes | Basis Patent | ||||
EP1774736A2 | Not Available | 08/04/2012 | ISLD-201204-008 | QUALCOMM INC | Yes | Basis Patent | ||||
EP1774736A2 | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
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EP1774736A2 | 5G | 05/12/2019 | ISLD-201912-057 | QUALCOMM INC |
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No | Family Member | |||
EP1774736B1 | 4G | 08/04/2012 | ISLD-201204-008 | QUALCOMM INC | Yes | Basis Patent | ||||
EP1774736B1 | Not Available | 08/04/2012 | ISLD-201204-008 | QUALCOMM INC | Yes | Basis Patent | ||||
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No | Family Member | |||
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CA2574740A1 | 4G | 08/04/2012 | ISLD-201204-008 | QUALCOMM INC | Yes | Family Member | ||||
CA2574740A1 | Not Available | 08/04/2012 | ISLD-201204-008 | QUALCOMM INC | Yes | Family Member | ||||
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TWI358215B | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
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No | Family Member | |||
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CA2851734A1 | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
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No | Family Member | |||
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CA2851734C | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
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No | Family Member | |||
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No | Family Member | |||
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No | Family Member | |||
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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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