Configurable spatial channel information feedback in wireless communication system
First Claim
1. A method in a wireless communication device for providing spatial channel information feedback, the method comprising:
- receiving, at the wireless communication device, transmissions from a plurality of antennas;
receiving, at the wireless communication device, an indication of a feedback mode for feeding back spatial channel information, the spatial channel information based on transmission from at least some of the plurality of antennas;
determining, at the wireless communication device, the spatial channel information comprising at least two Kronecker components;
generating parameters representative of the Kronecker components by extracting Eigen information according to the feedback mode indicated based on an Eigenvalue decomposition of the Kronecker components; and
feeding back, from the wireless communication device, the parameters representative of the Kronecker components according to the feedback mode indicated.
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Abstract
A method for configurable spatial channel information feedback in wireless communication systems is disclosed including receiving, at the wireless communication device, transmission from a plurality of antennas, receiving an indication of a feedback mode for feeding back spatial channel information that is based on correlations among at least some of the plurality of antennas, decomposing a correlation matrix representative of the correlations among at least some of the plurality of antennas into at least two Kronecker components, and feeding back parameters representative of the Kronecker components according to the feedback mode indicated.
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Citations
17 Claims
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1. A method in a wireless communication device for providing spatial channel information feedback, the method comprising:
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receiving, at the wireless communication device, transmissions from a plurality of antennas; receiving, at the wireless communication device, an indication of a feedback mode for feeding back spatial channel information, the spatial channel information based on transmission from at least some of the plurality of antennas; determining, at the wireless communication device, the spatial channel information comprising at least two Kronecker components; generating parameters representative of the Kronecker components by extracting Eigen information according to the feedback mode indicated based on an Eigenvalue decomposition of the Kronecker components; and feeding back, from the wireless communication device, the parameters representative of the Kronecker components according to the feedback mode indicated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method in a wireless communication device for providing spatial channel information feedback, the method comprising:
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receiving, at the wireless communication device, transmissions from a plurality of antennas, wherein the plurality of antennas further comprises antennas of a plurality of transmission points in a network; receiving, at the wireless communication device, an indication of a feedback mode for feeding back spatial channel information, the spatial information based on a subset of the plurality of antennas; generating parameters representative of the spatial channel information based on transmissions from the sub-set of the plurality of antennas, wherein the generating is performed by extracting Eigen information according to the feedback mode indicated based on an Eigenvalue decomposition of a correlation matrix representative of the spatial channel information for the sub-set of the plurality of antennas; and feeding back, from the wireless communication device, the parameters according to the feedback mode indicated. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification