METHOD AND SYSTEM FOR CQI/PMI FEEDBACK FOR PRECODED MIMO SYSTEMS UTILIZING DIFFERENTIAL CODEBOOKS
First Claim
1. A method for processing communication signals, the method comprising:
- generating one or more feedback messages for one or more Channel Quality Indicator (CQI) reporting units based on at least channel state information associated with said one or more CQI reporting units; and
generating one or more differential feedback messages for one or more Pre-coding Matrix Index (PMI) reporting units based on at least channel state information associated with said one or more PMI reporting units, wherein said one or more PMI reporting units span a useable bandwidth.
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Abstract
Aspects of a method and system for CQI/PMI feedback for precoded MIMO systems utilizing differential codebooks may include generating one or more feedback messages for one or more Channel Quality Indicator (CQI) reporting units based on at least channel state information associated with the one or more CQI reporting units. One or more differential feedback messages may be generated for one or more Pre-coding Matrix Index (PMI) reporting units based on at least channel state information associated with the one or more PMI reporting units, wherein the one or more PMI reporting units span a useable bandwidth. A bandwidth and a feedback period may be assigned to each of the one or more CQI reporting units and the one or more PMI reporting units to define the one or more CQI reporting units and the one or more PMI reporting units.
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Citations
22 Claims
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1. A method for processing communication signals, the method comprising:
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generating one or more feedback messages for one or more Channel Quality Indicator (CQI) reporting units based on at least channel state information associated with said one or more CQI reporting units; and generating one or more differential feedback messages for one or more Pre-coding Matrix Index (PMI) reporting units based on at least channel state information associated with said one or more PMI reporting units, wherein said one or more PMI reporting units span a useable bandwidth. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 22)
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12. A system for processing communication signals, the system comprising:
one or more circuits, which enable; generation of one or more feedback messages for one or more Channel Quality Indicator (CQI) reporting units based on at least channel state information associated with said one or more CQI reporting units; and generation of one or more differential feedback messages for one or more Pre-coding Matrix Index (PMI) reporting units based on at least channel state information associated with said one or more PMI reporting units, wherein said one or more PMI reporting units span a useable bandwidth. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
Specification