CHANNEL FEEDBACK BASED ON REFERENCE SIGNAL

Abstract

Techniques for supporting channel measurement and reporting in a wireless communication system are described. In one design a cell transmits a cell-specific reference signal (CRS) used for channel estimation and coherent demodulation and a channel spatial information reference signal (CSI-RS) used for channel measurement and channel feedback reporting. The cell may transmit the CSI-RS less frequently than the CRS or from more antenna ports than the CRS or on fewer resource elements than the CRS or a combination thereof. In one design a user equipment (UE) determines at least one bandwidth part configured for the UE with each bandwidth part covering at least one subband. The UE receives the CRS and CSI-RS from the cell determines channel feedback information for the at least one bandwidth part based on the CSI-RS sends the channel feedback information to the cell and receives data transmitted by the cell based on the channel feedback information.

Techniques for supporting channel measurement and reporting in a wireless communication system are described. In one design a cell transmits a cell-specific reference signal (CRS) used for channel estimation and coherent demodulation and a channel spatial information reference signal (CSI-RS) used for channel measurement and channel feedback reporting. The cell may transmit the CSI-RS less frequently than the CRS or from more antenna ports than the CRS or on fewer resource elements than the CRS or a combination thereof. In one design a user equipment (UE) determines at least one bandwidth part configured for the UE with each bandwidth part covering at least one subband. The UE receives the CRS and CSI-RS from the cell determines channel feedback information for the at least one bandwidth part based on the CSI-RS sends the channel feedback information to the cell and receives data transmitted by the cell based on the channel feedback information.

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Technology	Declaration Information			Specification Information	Explicitly Disclosed	Patent Type
Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Information	Explicitly Disclosed	Patent Type
4G	25/06/2012	ISLD-201206-007	QUALCOMM INC	S1 TS Number: TS 136 211 Version No: ---- Illustrative part: ---- Release: ---- S2 TS Number: TS 136 213 Version No: ---- Illustrative part: ---- Release: ---- +1 -1	No	Family Member
Not Available	25/06/2012	ISLD-201206-007	QUALCOMM INC	S1 TS Number: TS 136 211 Version No: ---- Illustrative part: ---- Release: ---- S2 TS Number: TS 136 213 Version No: ---- Illustrative part: ---- Release: ---- +1 -1	No	Family Member
5G	16/03/2018	ISLD-201806-030	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: ---- Illustrative part: ---- Release: ---- S2 TS Number: TS 138 214 Version No: ---- Illustrative part: ---- Release: ---- +1 -1	No	Family Member
4G	06/12/2019	ISLD-201912-061	QUALCOMM INC	S1 TS Number: TS 136 211 Version No: ---- Illustrative part: ---- Release: ---- S2 TS Number: TS 136 213 Version No: ---- Illustrative part: ---- Release: ---- +1 -1	No	Family Member
5G	04/12/2020	ISLD-202012-006	QUALCOMM INC	S1 TS Number: TS 138 214 Version No: ---- Illustrative part: ---- Release: ---- S2 TS Number: TS 138 331 Version No: ---- Illustrative part: ---- Release: ---- S3 TS Number: TS 138 211 Version No: ---- Illustrative part: ---- Release: ---- +2 -2	No	Family Member

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Publication No	Technology	Declaration Information			Specification Information	Explicitly Disclosed	Patent Type
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CA2786452A1	5G	16/03/2018	ISLD-201806-030	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 138 214 Version No: -- Section No: -- Release : -- +1 -1	No	Family Member
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US9107104B2	5G	04/12/2020	ISLD-202012-006	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 138 214 Version No: -- Section No: -- Release : -- S3 TS Number: TS 138 331 Version No: -- Section No: -- Release : -- +2 -2	Yes	Basis Patent
HK1180133A1	4G	25/06/2012	ISLD-201206-007	QUALCOMM INC	S1 TS Number: TS 136 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 136 213 Version No: -- Section No: -- Release : -- +1 -1	No	Family Member
HK1180133A1	Not Available	25/06/2012	ISLD-201206-007	QUALCOMM INC	S1 TS Number: TS 136 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 136 213 Version No: -- Section No: -- Release : -- +1 -1	No	Family Member
HK1180133A1	5G	16/03/2018	ISLD-201806-030	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 138 214 Version No: -- Section No: -- Release : -- +1 -1	No	Family Member
HK1180133A1	4G	06/12/2019	ISLD-201912-061	QUALCOMM INC	S1 TS Number: TS 136 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 136 213 Version No: -- Section No: -- Release : -- +1 -1	No	Family Member
HK1180133A1	5G	04/12/2020	ISLD-202012-006	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 138 214 Version No: -- Section No: -- Release : -- S3 TS Number: TS 138 331 Version No: -- Section No: -- Release : -- +2 -2	No	Family Member
BR112012017413A2	4G	25/06/2012	ISLD-201206-007	QUALCOMM INC	S1 TS Number: TS 136 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 136 213 Version No: -- Section No: -- Release : -- +1 -1	No	Family Member
BR112012017413A2	Not Available	25/06/2012	ISLD-201206-007	QUALCOMM INC	S1 TS Number: TS 136 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 136 213 Version No: -- Section No: -- Release : -- +1 -1	No	Family Member
BR112012017413A2	5G	16/03/2018	ISLD-201806-030	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 138 214 Version No: -- Section No: -- Release : -- +1 -1	No	Family Member
BR112012017413A2	4G	06/12/2019	ISLD-201912-061	QUALCOMM INC	S1 TS Number: TS 136 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 136 213 Version No: -- Section No: -- Release : -- +1 -1	No	Family Member
BR112012017413A2	5G	04/12/2020	ISLD-202012-006	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 138 214 Version No: -- Section No: -- Release : -- S3 TS Number: TS 138 331 Version No: -- Section No: -- Release : -- +2 -2	No	Family Member
IDP000036977B	4G	06/12/2019	ISLD-201912-061	QUALCOMM INC	S1 TS Number: TS 136 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 136 213 Version No: -- Section No: -- Release : -- +1 -1	No	Family Member
IDP000036977B	5G	04/12/2020	ISLD-202012-006	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 138 214 Version No: -- Section No: -- Release : -- S3 TS Number: TS 138 331 Version No: -- Section No: -- Release : -- +2 -2	No	Family Member
MY166141A	4G	06/12/2019	ISLD-201912-061	QUALCOMM INC	S1 TS Number: TS 136 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 136 213 Version No: -- Section No: -- Release : -- +1 -1	No	Family Member
MY166141A	5G	04/12/2020	ISLD-202012-006	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 138 214 Version No: -- Section No: -- Release : -- S3 TS Number: TS 138 331 Version No: -- Section No: -- Release : -- +2 -2	No	Family Member
ZA201205771B	4G	06/12/2019	ISLD-201912-061	QUALCOMM INC	S1 TS Number: TS 136 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 136 213 Version No: -- Section No: -- Release : -- +1 -1	No	Family Member
ZA201205771B	5G	04/12/2020	ISLD-202012-006	QUALCOMM INC	S1 TS Number: TS 138 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 138 214 Version No: -- Section No: -- Release : -- S3 TS Number: TS 138 331 Version No: -- Section No: -- Release : -- +2 -2	No	Family Member
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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
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Technologies

Resource configuration

Channel Status Information(CSI) Reporting

Product

Base Station (eNB/gNB)

User Equipment (UE/Terminal)

Access point

Use Cases

Wireless communication

Services

Channel Quality Measurement/Estimation

Claim

Associated Portfolios

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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

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.

EP2524461A1

5G,4G

Title

CHANNEL FEEDBACK BASED ON REFERENCE SIGNAL

Application Number:

Publication Date:

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View on Espacenet

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Abstract

Specification Information

Specification Information

Technologies

Family Information

Technologies

Product

Use Cases

Services

Claim

Associated Portfolios

Note: