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, transmission 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 correlations among at least some of the plurality of antennas;
decomposing, at the wireless communication device, a correlation matrix representative of the correlations among at least some of the plurality of antennas into at least two Kronecker components,feeding back, from the wireless communication device, 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
20 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, transmission 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 correlations among at least some of the plurality of antennas; decomposing, at the wireless communication device, a correlation matrix representative of the correlations among at least some of the plurality of antennas into at least two Kronecker components, feeding back, from the wireless communication device, 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, transmission from a plurality of antennas; receiving, at the wireless communication device, an indication of a feedback mode for feeding back spatial channel information, the feedback mode specifying a subset of the plurality of antennas on which the spatial channel information is based; generating parameters representative of the spatial channel information based on correlations among the sub-set of the plurality of antennas specified; feeding back, from the wireless communication device, the parameters according to the feedback mode indicated. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A method in a wireless communication base station, the method comprising:
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transmitting, from the base station to a mobile station, an indication of a feedback mode for feeding back spatial channel information from the mobile station to the base station, the spatial channel information based on a correlation matrix representative of correlations among at least some of a plurality of antennas observed at the mobile station wherein the correlation matrix is decomposed into at least two Kronecker components; and receiving, at the base station, parameters representative of the Kronecker components from the mobile station according to the feedback mode indicated.
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Specification