Abstract
Embodiments of the present disclosure provide a feedback generator a feedback decoder and methods of operating a feedback generator and decoder. In one embodiment the feedback generator is for use in user equipment and includes a CQI profile module configured to provide a differential channel quality indicator wherein the differential channel quality indicator represents a difference between indices corresponding to allocatable channel quality indicators. The feedback generator also includes a transmit module that transmits the differential channel quality indicator. In one embodiment the feedback decoder is for use in a base station and includes a receive module configured to receive a differential channel quality indicator. The feedback decoder also includes a CQI selection module configured to provide allocatable channel quality indicators from the differential channel quality indicator based on a differential index wherein the differential index represents a difference between indices corresponding to the allocatable channel quality indicators.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Information | ||||||
Not Available | 10/11/2011 | ISLD-201111-002 | TEXAS INSTRUMENTS INC | Yes | Basis Patent | ||||
4G | 22/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC | Yes | Basis Patent |
Specification Information
Specification Information
Technologies
Family Information
All Granted Patents In Patent Family : | ---- |
Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Information | |||||||
US2009109909A1 | Not Available | 10/11/2011 | ISLD-201111-002 | TEXAS INSTRUMENTS INC | Yes | Basis Patent | ||||
US2009109909A1 | 4G | 22/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC | Yes | Basis Patent | ||||
WO2009055401A1 | Not Available | 10/11/2011 | ISLD-201111-002 | TEXAS INSTRUMENTS INC | No | Family Member | ||||
WO2009055401A1 | 4G | 22/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC | Yes | Family Member |
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Technologies
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Use Cases
Services
Claim
1. A feedback generator in user equipment, comprising:
a CQI profile module configured to provide a differential channel quality indicator, wherein the differential channel quality indicator represents a difference between a first index and a second index, wherein the first index corresponds to a channel quality of an allocated sub-band of the user equipment and the second index corresponds to a wideband CQI, wherein the wideband CQI is an average CQI across all allocated sub-bands; and
a transmit module that transmits the differential channel quality indicator.
2. The generator as recited in claim 1 wherein the differential channel quality indicator represents a difference between indices that denote a set of supportable pairs of modulation and coding rate.
3. The generator as recited in claim 1 wherein the differential channel quality indicator is provided as an approximation to a difference between indices for non-allocatable channel quality indicators.
4. The generator as recited in claim 1 wherein the differential channel quality indicator of at least one frequency sub-band is defined with respect to a channel quality indicator selected for a portion of all frequency sub-bands.
5. The generator as recited in claim 1 wherein the differential channel quality indicator of at least one spatial codeword is defined with respect to a channel quality indicator for another spatial codeword.
6. The generator as recited in claim 1 wherein the differential channel quality indicator is defined for a combination of multiple frequency sub-bands and multiple spatial codewords.
7. The generator as recited in claim 1 wherein the differential channel quality indicator is positive, negative or zero.
8. A method of operating a feedback generator in user equipment, comprising:
providing a differential channel quality indicator, wherein the differential channel quality indicator represents a difference between a first index and a second index, wherein the first index corresponds to a channel quality of an allocated sub-band of the user equipment and the second index corresponds to a wideband CQI, wherein the wideband CQI is a median CQI across all allocated sub-bands; and
transmitting the differential channel quality indicator.
9. The method as recited in claim 8 wherein the differential channel quality indicator represents a difference between indices that denote a set of supportable pairs of modulation and coding rate.
10. The method as recited in claim 8 wherein the differential channel quality indicator is provided as an approximation to a difference between indices for non-allocatable channel quality indicators.
11. The method as recited in claim 8 wherein the differential channel quality indicator of at least one frequency sub-band is defined with respect to a channel quality indicator selected for a portion of all frequency sub-bands.
12. The method as recited in claim 8 wherein the differential channel quality indicator of at least one spatial codeword is defined with respect to a channel quality indicator for another spatial codeword.
13. The method as recited in claim 8 wherein the differential channel quality indicator is defined for a combination of multiple frequency sub-bands and multiple spatial codewords.
14. The method as recited in claim 8 wherein the differential channel quality indicator is positive, negative or zero.
15. A feedback decoder in a base station, comprising:
a receive module configured to receive a differential channel quality indicator; and
a CQI selection module configured to provide channel quality indicators from the differential channel quality indicator based on a differential index, wherein the differential index represents a difference between a first index and a second index, wherein the first index corresponds to a channel quality of an allocated sub-band of the user equipment and the second index corresponds to a wideband CQI, wherein the wideband CQI is a median CQI across all allocated sub-bands.
16. The decoder as recited in claim 15 wherein the differential channel quality indicator represents a difference between indices that denote a set of supportable pairs of modulation and coding rate.
17. The decoder as recited in claim 15 wherein the differential channel quality indicator is provided as an approximation to a difference between indices for non-allocatable channel quality indicators.
18. The decoder as recited in claim 15 wherein the differential channel quality indicator of at least one frequency sub-band is defined with respect to a channel quality indicator selected for a portion of all frequency sub-bands.
19. The decoder as recited in claim 15 wherein the differential channel quality indicator of at least one spatial codeword is defined with respect to a channel quality indicator for another spatial codeword.
20. The decoder as recited in claim 15 wherein the differential channel quality indicator is defined for a combination of multiple frequency sub-bands and multiple spatial codewords.
21. The decoder as recited in claim 15 wherein the differential channel quality indicator is positive, negative or zero.
22. A method of operating a feedback decoder in a base station, comprising:
receiving a differential channel quality indicator; and
providing channel quality indicators from the differential channel quality indicator based on a differential index, wherein the differential index represents a difference between a first index and a second index, wherein the first index corresponds to a channel quality of an allocated sub-band of the user equipment and the second index corresponds to a wideband CQI, wherein the wideband CQI is a median CQI across all allocated sub-bands.
23. The method as recited in claim 22 wherein the differential channel quality indicator represents a difference between indices that denote a set of supportable pairs of modulation and coding rate.
24. The method as recited in claim 22 wherein the differential channel quality indicator is provided as an approximation to a difference between indices for non-allocatable channel quality indicators.
25. The method as recited in claim 22 wherein the differential channel quality indicator of at least one frequency sub-band is defined with respect to a channel quality indicator selected for a portion of all frequency sub-bands.
26. The method as recited in claim 22 wherein the differential channel quality indicator of at least one spatial codeword is defined with respect to a channel quality indicator for another spatial codeword.
27. The method as recited in claim 22 wherein the differential channel quality indicator is defined for a combination of multiple frequency sub-bands and multiple spatial codewords.
28. The method as recited in claim 22 wherein the differential channel quality indicator is positive, negative or zero.
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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.