Method and apparatus for high rate packet data transmission
First Claim
1. An apparatus adapted for a communication system, comprising:
- means for determining a data rate for transmission as a function of a quality indicator received, the quality indicator indicative of a quality of a link in the communication system; and
means for transmitting data at a constant transmit power independent of the data rate.
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Accused Products
Abstract
In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C/I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets.
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Citations
66 Claims
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1. An apparatus adapted for a communication system, comprising:
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means for determining a data rate for transmission as a function of a quality indicator received, the quality indicator indicative of a quality of a link in the communication system; and
means for transmitting data at a constant transmit power independent of the data rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method in a communication system, comprising:
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determining a data rate for transmission as a function of a quality indicator received, the quality indicator indicative of a quality of a link in the communication system; and
transmitting data at a constant transmit power independent of the data rate. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An apparatus for a communication system, comprising:
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means for transmitting a quality indicator indicative of a quality of a link in the communication system; and
means for receiving data-at a data rate, wherein the data rate is a function of the quality indicator and independent of a transmit power. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. A method in the communication system, comprising:
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transmitting a quality indicator indicative of a quality of a link in the communication system; and
receiving data at a data rate, wherein the data rate is a function of the quality indicator and independent of a transmit power. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64)
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65. A computer program product for increasing data throughput and efficiency in a communication system, comprising:
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instructions for determining a data rate for transmission in the communication system as a function of a quality indicator received, the quality indicator indicative of a quality of a link in the communication system; and
instructions for transmitting data at a constant transmit power independent of the data rate.
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66. A computer program product for increasing data throughput and efficiency in a communication system, comprising:
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instructions for transmitting a quality indicator indicative of a quality of a link in the communication system; and
instructions for receiving data at a data rate, wherein the data rate is a function of the quality indicator and independent of a transmit power.
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Specification