WIRELESS COMMUNICATION METHOD AND APPARATUS FOR ADAPTIVELY BIASING CHANNEL QUALITY INDICATORS TO MAINTAIN A DESIRED BLOCK ERROR RATE.

摘要

A method and apparatus for adaptively biasing a channel quality indicator (CQI) usedfor setting a configuration of communication between a transmitter and a receiverin a wireless communication system. The receiver sends a CQI and positive acknowledgement(ACK)/negative acknowledgement (NACK) messages to the transmitter. The ACK/NACKmessages indicate the absence or presence of error, respectively, in a transmitteddata packet. The CQI is derived from the signal-to-interference ratio (SIR)and the ACK/NACK messages. The transmitter calculates the block error rate (BLER)of the transmitted data packets based upon the ACK/NACK messages sent from thereceiver. The transmitter compares the BLER of the transmitted data packetsto a target BLER and biases the CQI based on the comparison in order to achieve thetarget BLER.