Method and apparatus for high rate packet data transmission
First Claim
1. A method in a wireless communication system, comprising:
- receiving a pilot from a base station;
measuring channel quality of a link in the wireless communication system based on the pilot received from the base station;
determining a quality indicator based on the channel quality of the link, wherein the quality indicator is associated with a modulation format in a set of modulation formats and a packet size in a set of packet sizes;
transmitting the quality indicator to the base station; and
receiving data as a function of the quality indicator.
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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
46 Claims
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1. A method in a wireless communication system, comprising:
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receiving a pilot from a base station; measuring channel quality of a link in the wireless communication system based on the pilot received from the base station; determining a quality indicator based on the channel quality of the link, wherein the quality indicator is associated with a modulation format in a set of modulation formats and a packet size in a set of packet sizes; transmitting the quality indicator to the base station; and receiving data as a function of the quality indicator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for a wireless communication system, comprising:
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means for receiving a pilot from a base station; means for measuring channel quality of a link in the wireless communication system based on the pilot received from the base station; means for determining a quality indicator based on the channel quality of the link, wherein the quality indicator is associated with a modulation format in a set of modulation formats and a packet size in a set of packet sizes; means for transmitting the quality indicator to the base station; and means for receiving data as a function of the quality indicator. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A non-transitory computer-readable medium encoded with a computer program for a communication system, comprising:
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instructions for receiving a pilot from a base station; instructions for measuring channel quality of a link in the communication system based on the pilot received from the base station; instructions for determining a quality indicator based on the channel quality of the link, wherein the quality indicator is associated with a modulation format in a set of modulation formats and a packet size in a set of packet sizes; instructions for transmitting the quality indicator to the base station; and instructions for receiving data as a function of the quality indicator.
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27. A method in a communication system, comprising:
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transmitting a pilot from a base station; receiving a quality indicator determined based on the pilot, wherein the quality indicator is associated with a modulation format in a set of modulation formats and a packet size in a set of packet sizes; and transmitting data from the base station as a function of the quality indicator. - View Dependent Claims (28)
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29. An apparatus for a wireless communication system, comprising:
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means for transmitting a pilot from a base station; means for receiving a quality indicator determined based on the pilot, wherein the quality indicator is associated with a modulation format in a set of modulation formats and a packet size in a set of packet sizes; and means for transmitting data from the base station as a function of the quality indicator. - View Dependent Claims (30, 31)
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32. A non-transitory computer-readable medium encoded with a computer program for a communication system, comprising:
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instructions for transmitting a pilot from a base station; instructions for receiving a quality indicator determined based on the pilot, wherein the quality indicator is associated with a modulation format in a set of modulation formats and a packet size in a set of packet sizes; and instructions for transmitting data from the base station as a function of the quality indicator.
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33. An apparatus for wireless communication, comprising:
at least one processor configured to receive a pilot from a base station, to measure channel quality of a link in a communication system based on the pilot received from the base station, to determine a quality indicator based on the channel quality of the link, wherein the quality indicator is associated with a modulation format in a set of modulation formats and a packet size in a set of packet sizes, to transmit the quality indicator to the base station, and to receive data as a function of the quality indicator. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. An apparatus for wireless communication, comprising:
at least one processor configured to transmit a pilot from a base station, to receive a quality indicator determined based on the pilot and associated with a modulation format in a set of modulation formats and a packet size in a set of packet sizes, and to transmit data from the base station as a function of the quality indicator. - View Dependent Claims (46)
Specification