Method and Arrangement for Adapting a Multi-Antenna Transmission
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorGeorge Jöngren
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Abstract
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.
Claims1
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 comprised in a wireless communication system, the method comprising:
- obtaining at least one symbol stream;
- precoding the at least one symbol stream with a precoding matrix;
- and
- transmitting the precoded at least one symbol stream over a wireless channel to the second node.
Dependencies are inferred from the claim text.