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US 8,787,481 B2Granted
Method and arrangement for adapting a multi-antenna transmission
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorGeorge Jöngren
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AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorGeorge Jöngren
Estimating the term…
A method in a first node for adapting a multi-antenna transmission to a second node over a wireless channel is provided. The wireless channel has at least three inputs and at least one output. The first node and the second node are comprised in a wireless communication system. The method includes obtaining at least one symbol stream, determining a precoding matrix having a product structure created by a block diagonal matrix being multiplied from the left with a block diagonalizing unitary matrix, precoding the at least one symbol stream with the determined precoding matrix, and transmitting the precoded at least one symbol stream over a wireless channel to the second node.
A method in a first node for adapting a multi-antenna transmission to a second node over a wireless channel, the wireless channel having at least three inputs and at least one output, the first node and the second node being included in a wireless communication system, the method comprising the steps of:
A method in a second node for receiving a multi-antenna transmission from a first node over a wireless channel, the wireless channel having at least three inputs and at least one output, the first node and the second node being included in a wireless communication system, the method comprising the step of:
An arrangement in a first node, for adapting a multi-antenna transmission to a second node over a wireless channel, the wireless channel having at least three inputs and at least one output, the first node and the second node being included in a wireless communication system, the first node arrangement comprising:
An arrangement in a second node, for receiving a multi-antenna transmission from a first node over a wireless channel, the wireless channel having at least three inputs and at least one output, the first node and the second node being comprised in a wireless communication system, the second node arrangement comprising a receiving unit configured to receive a transmission corresponding to at least one symbol stream over a wireless channel conveyed from the first node, which at least one symbol stream is precoded with a precoding matrix having a product structure created by a block diagonal matrix being multiplied from the left with a block diagonalizing unitary matrix.
Dependencies are inferred from the claim text.