Patent ID: 9379867
Filing Date: 2016-06-28
CPC Classification: H04L

Claim Text:
1. A method for operating a feedback channel in a Base Station (BS) of a wireless communication system, the method comprising: generating a message comprising a bitmap indicating at least one feedback channel to be deallocated among feedback channels allocated to a mobile station (MS); and transmitting the message to the MS, wherein each bit of the bitmap corresponds to each of the feedback channels, wherein an ordering of the feedback channels in the bitmap is determined based on feedback information types of the feedback channels, wherein a Most Significant Bit (MSB) of the bitmap indicates whether to deallocate a feedback channel for a Multiple Input Multiple Output (MIMO) Feedback Mode (MFM) having a smallest index among the feedback channels, wherein if any feedback channel for the MFM is not allocated to the MS, the MSB indicates whether to deallocate a feedback channel for a transmitting correlation matrix, and wherein if any feedback channel for the MFM and the feedback channel for the transmitting correlation matrix are not allocated to the MS, the MSB indicates whether to deallocate a feedback channel for a multi-BS MIMO feedback.