Communication scheme for channel quality information

摘要

The invention relates to a method for receiving and a method for reconstructing channel quality information in a communication system. Further, the invention also provides a transmitter and receiver performing these methods, respectively. The invention suggests a scheme for communicating channel quality measures that on the one hand allows for an accurate reconstruction of the channel quality measures at the receiver and on the other hand requires an acceptable transmission overhead. This is achieved by partitioning channel quality measures into at least two partitions and to compress the values partition-wise, for example, by means of a discrete cosine transform and the transmission of only a subset of the resulting coefficients.

主权项

1. A method for receiving, at a receiver, a periodic report of channel quality information from a transmitting entity within a communication system, the method comprising the steps of:
receiving a first channel quality information report at a first reporting instance; and receiving a second channel quality information report at a second reporting instance; wherein a change in a channel state triggers a change in a content of the second channel quality information report between a first content and a second content at the transmitting entity; and wherein the first content of the second channel quality information report enables a more accurate frequency domain reconstruction of the channel state at the receiver than the second content of the second channel quality information report.