APPARATUS AND METHOD FOR FEEDING BACK CHANNEL QUALITY INFORMATION AND SCHEDULING APPARATUS AND METHOD USING THE SAME IN A WIRELESS COMMUNICATION SYSTEM

Abstract

An apparatus and method are provided for feeding back channel quality information and performing scheduling using the fed-back channel quality information in a wireless communication system based on Orthogonal Frequency Division Multiple Access (OFDMA). In the OFDMA wireless communication system forward performance degradation due to a decrease in an amount of reverse channel quality information is reduced and also an increase in the reverse load due to channel quality information feedback is suppressed. A base station controls power of a physical channel using information fed back from a mobile station. In a method for feeding back channel quality information from the mobile station sub-band-by-sub-band channel quality information is measured and channel-by-channel quality information of a number of channels is transmitted in order of sub-bands of better channel quality information. Average channel quality information for a total band is measured and transmitted.

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Technology	Declaration Information			Specification Information	Explicitly Disclosed	Patent Type
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4G	10/01/2012	ISLD-201201-001	SAMSUNG	S1 TS Number: TS 136 212 Version No: Illustrative part: ---- Release: + -	No	Family Member
4G	20/01/2015	ISLD-201501-011	SAMSUNG	S1 TS Number: TS 136 213 Version No: Illustrative part: ---- Release: + -	No	Family Member
4G	17/12/2015	ISLD-201512-007	SAMSUNG	S1 TS Number: TS 136 213 Version No: Illustrative part: ---- Release: + -	No	Family Member
5G	02/05/2018	ISLD-201805-007	SAMSUNG	S1 TS Number: TS 138 214 Version No: Illustrative part: ---- Release: + -	No	Family Member
5G	29/03/2020	ISLD-202003-045	SAMSUNG	S1 TS Number: TS 138 213 Version No: Illustrative part: ---- Release: S2 TS Number: TS 138 214 Version No: Illustrative part: ---- Release: S3 TS Number: TS 138 331 Version No: Illustrative part: ---- Release: +2 -2	No	Family Member

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Publication No	Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Number	Explicitly Disclosed	Patent Type
WO2007064074A1	4G	10/01/2012	ISLD-201201-001	SAMSUNG	S1 TS Number: TS 136 212 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
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Publication No	Technology	Declaration Information			Specification Information				Explicitly Disclosed	Patent Type	Status	National Phase Entries
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Technologies

Resource configuration

Channel Status Information(CSI) Reporting

Product

User Equipment (UE/Terminal)

Base Station (eNB/gNB)

Use Cases

Wireless communication

Services

Channel Quality Measurement/Estimation

Claim

1. A method for feeding back channel quality information (CQI), at a mobile station, in a wireless communication system based on Orthogonal Frequency Division Multiple Access (OFDMA), the method comprising:
calculating, at the mobile station, a wideband CQI for an entire band, the entire band including S sub-bands;
calculating, at the mobile station, a sub-band CQI for each of the S sub-bands; and
transmitting, at the mobile station, the sub-band CQI for each of the S sub-bands and the wideband CQI at a same time interval;
wherein S is greater than one.', 'calculating, at the mobile station, a wideband CQI for an entire band, the entire band including S sub-bands;', 'calculating, at the mobile station, a sub-band CQI for each of the S sub-bands; and', 'transmitting, at the mobile station, the sub-band CQI for each of the S sub-bands and the wideband CQI at a same time interval;', 'wherein S is greater than one.

2. The method of claim 1, wherein the S sub-bands is a plurality of sub-bands.

3. The method of claim 1, further comprising:
transmitting an index indicating a position of the each of the S sub-bands.', 'transmitting an index indicating a position of the each of the S sub-bands.

4. The method of claim 1, wherein the sub-band CQI is calculated per a sub-band for determined number of sub-bands.

5. The method of claim 4, wherein the determined number of sub-bands are M sub-bands in the order of having better channel quality information.

6. An apparatus for feeding back channel quality information (CQI), at a mobile station, in a wireless communication system based on Orthogonal Frequency Division Multiple Access (OFDMA), the apparatus comprising:
a controller for calculating a wideband CQI for an entire band, the entire band including S sub-bands, and a sub-band CQI for each of the S sub-bands; and
a transmitter for transmitting the sub-band CQI for each of the S sub-bands and the wideband CQI at a same time interval;
wherein S is greater than one.', 'a controller for calculating a wideband CQI for an entire band, the entire band including S sub-bands, and a sub-band CQI for each of the S sub-bands; and', 'a transmitter for transmitting the sub-band CQI for each of the S sub-bands and the wideband CQI at a same time interval;', 'wherein S is greater than one.

7. The apparatus of claim 6, wherein the S sub-bands is a plurality of sub-bands.

8. The apparatus of claim 6, wherein the transmitter transmits an index indication a position of the each of the S sub-bands.

9. The apparatus of claim 6, wherein the sub-band CQI is calculated per a sub-band for determined number of sub-bands

10. The apparatus of claim 9, wherein the determined number of sub-bands are M sub-bands in the order of having better channel quality information

11. A method for receiving, at a base station, channel quality information (CQI) transmitted from a mobile station in a wireless communication system based on Orthogonal Frequency Division Multiple Access (OFDMA), the method comprising:
receiving, at the base station, a wideband CQI; and
receiving, at the base station, a sub-band CQI for each of S sub-bands,
wherein the wideband CQI is for an entire band, the entire band including S sub-bands and the sub-band CQI is for each of the S sub-bands,
wherein the sub-band CQI and the wideband CQI are received at a same time interval, and
wherein S is greater than one.', 'receiving, at the base station, a wideband CQI; and', 'receiving, at the base station, a sub-band CQI for each of S sub-bands,', 'wherein the wideband CQI is for an entire band, the entire band including S sub-bands and the sub-band CQI is for each of the S sub-bands,', 'wherein the sub-band CQI and the wideband CQI are received at a same time interval, and', 'wherein S is greater than one

12. The method of claim 11, wherein the S sub-bands is a plurality of sub-bands

13. The method of claim 11, further comprising:
receiving an index indicating a position of the each of the S sub-bands.', 'receiving an index indicating a position of the each of the S sub-bands

14. The method of claim 11, wherein the sub-band CQI is calculated per a sub-band for determined number of sub-bands

15. The method of claim 14, wherein the determined number of sub-bands are M sub-bands in the order of having better channel quality information

16. An apparatus for receiving, at base station, channel quality information (CQI) from a mobile station in a wireless communication system based on Orthogonal Frequency Division Multiple Access (OFDMA), the apparatus comprising:
a controller for receiving a wideband CQI, and for receiving a sub-band CQI for each of S sub-bands,
wherein the wideband CQI is for an entire band, the entire band including S sub-bands and the sub-band CQI is for each of the S sub-bands,
wherein the sub-band CQI and the wideband CQI are received at a same time interval, and
wherein S is greater than one.', 'a controller for receiving a wideband CQI, and for receiving a sub-band CQI for each of S sub-bands,', 'wherein the wideband CQI is for an entire band, the entire band including S sub-bands and the sub-band CQI is for each of the S sub-bands,', 'wherein the sub-band CQI and the wideband CQI are received at a same time interval, and', 'wherein S is greater than one

17. The apparatus of claim 16, wherein the S sub-bands is a plurality of sub-bands

18. The apparatus of claim 16, wherein the channel quality controller receives an index indicating a position of the each of the S sub-bands

19. The apparatus of claim 16, wherein the sub-band CQI is calculated per a sub-band for determined number of sub-bands.

20. The apparatus of claim 19, wherein the determined number of sub-bands are M sub-bands in the order of having better channel quality information.']

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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

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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.