Patent ID: 9071298
Filing Date: 2015-06-30
Classification: H04B

Abstract:
1. A method in a first node of conveying precoding information in a control message to a second node, the control message containing information that describes properties of an associated wireless data transmission between the first and second nodes employing spatial multiplexing and precoding information for sending codewords corresponding to transport blocks in said wireless data transmission, comprising the steps of: determining precoding parameters to be included in said control message to the second node, encoding control information bits in at least one precoding information field of the control message according to the determined precoding parameters by means of values in payload size related fields in the control message, wherein said field values are set to determine the interpretation of said control information bits in the precoding information field(s), and sending said control message with said precoding information and payload size related fields to the second node, wherein said payload size related fields indicate a payload size pair corresponding to the payload size of a first transport block and a second transport block, and said payload size pair is set to indicate: that a first codeword is enabled while a second codeword is disabled, or that two codewords are enabled.