Adaptive pilot insertion for a MIMO-OFDM system

Abstract

emitting entity in each protocol data unit (PDU) sends the basic pilot symbols. lower 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. emitting 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 almost self-adapting any symbol cycle is inserted in PDU. receiving entity can use the additional pilot frequency symbol to obtain improved signal path response estimation. emitting entity is sent for indicating signaling of additional pilot frequency symbol is being sent. The signaling can be embedded in through pilot symbols for a set of pilot subbands transmission for carrier wave pilot frequency symbol is in and the carrier wave pilot frequency symbol 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.

A transmitting entity transmits a base pilot in each protocol data unit (PDU). A receiving entity is able to derive a sufficiently accurate channel response estimate of a MIMO channel with the base pilot under nominal (or most) channel conditions. The transmitting entity selectively transmits an additional pilot if and as needed e.g. based on channel conditions and/or other factors. The additional pilot may be adaptively inserted in almost any symbol period in the PDU. The receiving entity is able to derive an improved channel response estimate with the additional pilot. The transmitting entity sends signaling to indicate that additional pilot is being sent. This signaling may be embedded within pilot symbols sent on a set of pilot subbands used for a carrier pilot that is transmitted across most of the PDU. The signaling indicates whether additional pilot is being sent and possibly other pertinent information.

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Technology	Declaration Information			Specification Information	Explicitly Disclosed	Patent Type
Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Number	Explicitly Disclosed	Patent Type
4G	08/04/2012	ISLD-201204-008	QUALCOMM INC	S1 TS Number: TS 136 213 Version No: Illustrative part: ---- Release: + -	Yes	Family Member
Not Available	08/04/2012	ISLD-201204-008	QUALCOMM INC	S1 TS Number: TS 136 213 Version No: Illustrative part: ---- Release: + -	Yes	Family Member
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Technologies

2G 3G 4G 5G

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SEP Database Augmented SEP Database

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Publication No	Technology	Declaration Information			Specification Information	Explicitly Disclosed	Patent Type
Publication No	Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Number	Explicitly Disclosed	Patent Type
EP1774736A2	4G	08/04/2012	ISLD-201204-008	QUALCOMM INC	S1 TS Number: TS 136 213 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
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EP1774736A2	5G	05/12/2019	ISLD-201912-057	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +1 -1	No	Family Member
EP1774736B1	4G	08/04/2012	ISLD-201204-008	QUALCOMM INC	S1 TS Number: TS 136 213 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
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EP1774736B1	5G	05/12/2019	ISLD-201912-057	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +1 -1	No	Family Member
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CA2574740C	5G	05/12/2019	ISLD-201912-057	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +1 -1	No	Family Member
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EP2395719A1	5G	05/12/2019	ISLD-201912-057	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +1 -1	No	Family Member
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EP2453619B1	5G	05/12/2019	ISLD-201912-057	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +1 -1	No	Family Member
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ES2478519T3	4G	29/01/2017	ISLD-201703-174	QUALCOMM INC	S1 TS Number: TS 136 211 Version No: ---- Section No: Release : ---- S2 TS Number: TS 136 212 Version No: ---- Section No: Release : ---- +1 -1	No	Family Member
ES2478519T3	5G	05/12/2019	ISLD-201912-057	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +1 -1	No	Family Member
MY154786A	4G	08/04/2012	ISLD-201204-008	QUALCOMM INC	S1 TS Number: TS 136 213 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
MY154786A	Not Available	08/04/2012	ISLD-201204-008	QUALCOMM INC	S1 TS Number: TS 136 213 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
MY154786A	4G	29/01/2017	ISLD-201703-174	QUALCOMM INC	S1 TS Number: TS 136 211 Version No: ---- Section No: Release : ---- S2 TS Number: TS 136 212 Version No: ---- Section No: Release : ---- +1 -1	No	Family Member
MY154786A	5G	05/12/2019	ISLD-201912-057	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +1 -1	No	Family Member
EP3537674A1	5G	05/12/2019	ISLD-201912-057	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +1 -1	No	Family Member
HUE044471T2	5G	05/12/2019	ISLD-201912-057	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +1 -1	No	Family Member
ES2739391T3	-----	-----	-----	-----	-----	-----	-----

Publication No	Technology	Declaration Information			Specification Information				Explicitly Disclosed	Patent Type	Status	National Phase Entries
Publication No	Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Information				Explicitly Disclosed	Patent Type	Status	National Phase Entries
-----	-----	-----	-----	-----	S1 TS Number: ----- Version No: ----- Section No:----- Release:----- + -				-----	-----	-----	-----

Technologies

Multiple-Input Multiple-Output(MIMO)/Massive MIMO

Product

Not Available

Use Cases

Wireless communication

Services

Not Available

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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.