Patent ID: 9130722
Filing Date: 2015-09-08
Classification: H04B,H04L

Abstract:
1. A method of transmitting a feedback message, performed by a user equipment (UE), the method comprising: receiving an allocation message comprising a feedback type field and a channel quality indicator channel (CQICH) type field from a base station (BS), wherein the feedback type field indicates feedback information type to be included in a feedback message and the CQICH type field indicates at least a primary fast feedback channel or a secondary fast feedback channel to be used for the feedback message; and transmitting the feedback message through the at least one of the primary fast feedback channel and the secondary fast feedback channel to the BS based on the allocation message, wherein when the CQICH type field indicates both the primary fast feedback type channel and the secondary fast feedback type channel for transmitting the feedback message, the primary fast feedback channel is assigned for a precoding matrix index and the secondary fast feedback channel is assigned for carrier-to-interference-and-noise ratio (CINR).