Patent ID: 9264121
Filing Date: 2016-02-16
CPC Classification: H04B

Claim Text:
1. A method in a first node for sending feedback data on a feedback channel to a second node, wherein the feedback data is indicative of channel properties of a data channel for sending data from the second node to the first node, a wireless MIMO communications system comprising the first and second nodes, the method comprising: sending, in a subframe of the feedback channel, feedback data comprising a first rank indicator of the data channel; and sending additional data, being independent of the first rank indicator, and being dependent on a second rank indicator, different from the first rank indicator, in the same subframe, wherein the data channel is using a first transmission mode with which the first rank indicator is associated, and the additional data is associated with channel properties for a transmission over the data channel using a second transmission mode different from the first transmission mode, wherein the additional data does not indicate channel properties of the data channel having a rank indicated by the first rank indicator.