Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2004-11-04
2009-02-17
Nguyen, Brian D (Department: 2616)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C370S332000
Reexamination Certificate
active
07492722
ABSTRACT:
A method and apparatus for adaptively biasing a channel quality indicator (CQI) used for setting a configuration of communication between a transmitter and a receiver in a wireless communication system. The receiver sends a CQI and positive acknowledgement (ACK)
egative acknowledgement (NACK) messages to the transmitter. The ACK/NACK messages indicate the absence or presence of error, respectively, in a transmitted data 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 the receiver. The transmitter compares the BLER of the transmitted data packets to a target BLER and biases the CQI based on the comparison in order to achieve the target BLER.
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Castor Douglas R.
Pietraski Philip J.
Sternberg Gregory S.
InterDigital Technology Corporation
Nguyen Brian D
Volpe and Koenig P.C.
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