Maximal ratio combining of equalized symbols for mimo systems with harq and/or repetition coding
AssigneeMarvell World Trade Ltd.
InventorsJungwon Lee, Woong Jun Jang, Hui-Ling Lou
Life of this patent
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Abstract
Systems and methods are provided for decoding signal vectors in multiple-input multiple-output (MIMO) systems, where the receiver has received one or more signal vectors based on the same transmitted vector. The receiver linearizes each received signal vector using one or more zero-forcing, MMSE, or other suitable linear equalizers. The components of the equalized signal vectors may be combined using maximum-ratio combining to form the components of a combined equalized signal vector. The components of the combined equalized signal vector may then be decoded individually using a linear decoder.
Claims21
1-94. (canceled)
A non-transitory computer readable medium encoded with instructions for decoding a signal vector in a multiple-input multiple-output transmission scheme, the computer readable medium comprising instructions for:
- equalizing each of a plurality of received signal vectors corresponding to a common transmit signal vector, wherein the equalized signal vectors include respective equalized noise components, and wherein each of the plurality of received signal vectors is associated with a respective channel response matrix;
- normalizing the equalized noise component of each of the equalized signal vectors by scaling each equalized signal vector based on its respective equalized noise component;
- combining the equalized signal vectors having the normalized noise components based on the channel response matrices;
- and
- decoding the combined equalized signal vector.
Dependencies are inferred from the claim text.