Operation of a forward link acknowledgement channel for the reverse link data
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United States of America Patent
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Oct 14, 2008
Grant Date -
Jul 13, 2006
app pub date -
Feb 6, 2006
filing date -
Jan 10, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An acknowledgement method in a wireless communication system. Initially, a reverse supplemental channel (R-SCH) frame is received at a base station. The base station then transmits an acknowledgement (ACK) signal if quality of the received R-SCH frame is indicated as being good. A negative acknowledgement (NAK) signal is transmitted only if the received data frame is indicated as being bad but has enough energy such that, if combined with energy from retransmission of the data frame, it would be sufficient to permit correct decoding of the data frame. If the best base station is known, the acknowledgement method may reverse the transmission of the acknowledgement signals for the best base station so that only NAK signal is sent. A positive acknowledgement is assumed in the absence of an acknowledgement. This is done to minimize the transmit power requirements.
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