Operation of a forward link acknowledgement channel for the reverse link data
First Claim
1. A method in a wireless communication system, comprising:
- receiving a reverse link traffic channel data frame from a mobile terminal;
transmitting an acknowledgement (ACK) signal by a base station providing that a reverse link pilot signal includes sufficient energy to permit correct decoding of the data frame; and
transmitting a negative acknowledgement (NAK) signal by the base station providing that the reverse link pilot signal includes insufficient energy to permit correct decoding of the data frame, but has enough energy such that if combined with energy from a retransmission of the data frame, it would be sufficient to permit correct decoding of the data frame.
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Accused Products
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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Citations
23 Claims
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1. A method in a wireless communication system, comprising:
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receiving a reverse link traffic channel data frame from a mobile terminal; transmitting an acknowledgement (ACK) signal by a base station providing that a reverse link pilot signal includes sufficient energy to permit correct decoding of the data frame; and transmitting a negative acknowledgement (NAK) signal by the base station providing that the reverse link pilot signal includes insufficient energy to permit correct decoding of the data frame, but has enough energy such that if combined with energy from a retransmission of the data frame, it would be sufficient to permit correct decoding of the data frame. - View Dependent Claims (2, 3, 4, 5)
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6. A base station for a wireless communication system, the base station comprising:
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a receiver for receiving a reverse link traffic channel data frame from a mobile terminal; and a transmitter to transmit an acknowledgement (ACK) signal providing that a reverse link pilot signal includes sufficient energy to permit correct decoding of the data frame, and to transmit a negative acknowledgement (NAK) signal providing that the reverse link pilot signal includes insufficient energy to permit correct decoding of the data frame, but has enough energy such that if combined with energy from a retransmission of the data frame, it would be sufficient to permit correct decoding of the data frame. - View Dependent Claims (7, 8)
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9. A wireless remote terminal for a communications system, the remote terminal comprising:
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a transmitter to transmit a reverse link traffic channel data frame to a base station; and a receiver for receiving an acknowledgement (ACK) signal from the base station providing that a reverse link pilot signal includes sufficient energy to permit correct decoding of the data frame, and to receive a negative acknowledgement (NAK) signal from the base station providing that the reverse link pilot signal includes insufficient energy to permit correct decoding of the data frame, but has enough energy such that if combined with energy from a retransmission of the data frame, it would be sufficient to permit correct decoding of the data frame. - View Dependent Claims (10, 11, 12, 13)
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14. An apparatus in a wireless communication system, comprising:
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means for receiving a reverse link traffic channel data frame from a mobile terminal; means for transmitting an acknowledgement (ACK) signal by a base station providing that a reverse link pilot signal includes sufficient energy to permit correct decoding of the data frame; and means for transmitting a negative acknowledgement (NAK) signal by the base station providing that the reverse link pilot signal includes insufficient energy to permit correct decoding of the data frame, but has enough energy such that if combined with energy from a retransmission of the data frame, it would be sufficient to permit correct decoding of the data frame. - View Dependent Claims (15, 16, 17, 18)
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19. A computer-readable medium comprising computer-executable instructions for:
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receiving a reverse link traffic channel data frame from a mobile terminal; transmitting an acknowledgement (ACK) signal by a base station providing that a reverse link pilot signal includes sufficient energy to permit correct decoding of the data frame; and transmitting a negative acknowledgement (NAK) signal by the base station providing that the reverse link pilot signal includes insufficient energy to permit correct decoding of the data frame, but has enough energy such that if combined with energy from a retransmission of the data frame, it would be sufficient to permit correct decoding of the data frame. - View Dependent Claims (20, 21, 22, 23)
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Specification