Method for controlling data transmission in a radio communications system
First Claim
1. A method for controlling transmission of data in a radio communication system comprising:
- generating a response signal which includes first information indicating whether an error is present in the data of a radio frame as received by a receiver and a second information indication of reception quality of the data of a radio frame, andtransmitting the response signal from the receiver to a transmitter which transmitted the data, wherein, if the receiver determines the data has an error and the reception quality is in a poor condition, the response signal is transmitted as a negative acknowledgment (NAK) signal with additional control information indicative of time delay, sending power, or multicode number.
1 Assignment
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Accused Products
Abstract
A method for controlling the transmission of data in a radio communications system transmits response signals from a receiver which includes information that reflects received signal quality, as well as information indicating whether an error has occurred in the data transmission. In one case, acknowledgment signals or negative acknowledgment signals may be regarded as no reply and not forwarded to a transmitter. In another case, the signals could be recognized as an acknowledgment or retransmission request by a receiver. Preferably, the signals transmitted from the receiver to the transmitter are composed of more than 2-bit multiplexed information. By transmitting response signals of this type, the transmission efficiency of packet data may be increased, and the automatic repeat request (ARQ) performance by the system may be greatly improved.
127 Citations
41 Claims
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1. A method for controlling transmission of data in a radio communication system comprising:
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generating a response signal which includes first information indicating whether an error is present in the data of a radio frame as received by a receiver and a second information indication of reception quality of the data of a radio frame, and transmitting the response signal from the receiver to a transmitter which transmitted the data, wherein, if the receiver determines the data has an error and the reception quality is in a poor condition, the response signal is transmitted as a negative acknowledgment (NAK) signal with additional control information indicative of time delay, sending power, or multicode number. - View Dependent Claims (2, 3, 4, 5)
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6. A method for controlling transmission of data in a radio communication system, comprising:
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generating a response signal which includes first information indicating whether an error is present in the data of a radio frame as received by a receiver and a second information indication of reception quality of the data of a radio frame, and transmitting the response signal from the receiver to a transmitter which transmitted the data, wherein the second information is multiplexed information which is at least 2 bits in length. - View Dependent Claims (7)
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8. A method for controlling transmission of data in a radio communication system, comprising:
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generating a response signal which includes first information indicating whether an error is present in the data of a radio frame as received by a receiver and a second information indication of reception quality of the data of a radio frame, and transmitting the response signal from the receiver to a transmitter which transmitted the data, wherein, if the receiver determining the data does not have an error, the response signal is transmitted as an acknowledgment (ACK) signal. - View Dependent Claims (9)
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10. A method for controlling transmission of data in a radio communication system, comprising:
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generating a response signal which includes first information indicating whether an error is present in the data of a radio frame as received by a receiver and a second information indication of reception quality of the data of a radio frame, and transmitting the response signal from the receiver to a transmitter which transmitted the data, wherein, if the receiver determining the data has an error but the reception quality is in a good condition, the response signal is transmitted as a negative acknowledgment with additional control information signal.
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11. A method for controlling transmission of data in a radio communication system, comprising:
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generating a response signal which includes first information indicating whether an error is present in the data of a radio frame as received by a receiver and a second information indication of reception quality of the data of a radio frame, and transmitting the response signal from the receiver to a transmitter which transmitted the data, wherein the radio frame is composed of three time slots.
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12. A method for controlling data transmission in a radio communication system comprising:
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receiving packet data; if an error is determined to exist in the packet data, then determining reception quality of the packet data; comparing the reception quality with a predetermined reception quality; and transmitting a negative acknowledgment (NAK) signal in accordance with a result of the comparison, wherein the NAK signal includes multiplexed information at least 2 bits in length. - View Dependent Claims (13, 14, 15)
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16. A method for controlling data transmission in a radio communication system, comprising:
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receiving packet data; if an error is determined to exist in the packet data, then determining reception quality of the packet data; comparing the reception quality with a predetermined reception quality; and transmitting a negative acknowledgment (NAK) signal in accordance with a result of the comparison, wherein, if the reception quality is determined to be greater than said predetermined quality, the NAK signal includes information associated with a request for retransmission of the packet data, and wherein the information associated with a request for retransmission of the packet data is multiplexed information which includes continuous equivalent bit values.
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17. A method for controlling data transmission in a radio communication system, comprising:
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receiving packet data; if an error is determined to exist in the packet data, then determining reception quality of the packet data; comparing the reception quality with a predetermined reception quality; and transmitting a negative acknowledgment (NAK) signal in accordance with a result of the comparison, wherein, if the reception quality is less than said predetermined quality, the NAK signal includes information associated with a request for retransmission of a packet data in accordance with the reception quality. - View Dependent Claims (18)
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19. A method for controlling data transmission in a radio communication system comprising:
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determining whether received packet data has an error; processing an acknowledgment signal as no reply if the packet data does not have an error; comparing a reception quality of the packet data with a predetermined reception quality if the packet data has an error; and transmitting a negative acknowledgment (NAK) signal with information indicating the reception quality, wherein the information indicating the reception quality indicates a time delay, transmission power, or a multicode number. - View Dependent Claims (20, 21)
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22. A method for controlling data transmission in a radio communication system, comprising:
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determining whether received packet data has an error; processing an acknowledgment signal as no reply if the packet data does not have an error; comparing a reception quality of the packet data with a predetermined reception quality if the packet data has an error; and transmitting an negative acknowledgment (NAK) signal with information indicating the reception quality, wherein the information indicating the reception quality is multiplexed information which is at least 2 bits in length. - View Dependent Claims (23)
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24. A method for controlling data transmission in a radio communication system, comprising:
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determining, in a transmitter, whether a receiver of packet data has transmitted a response signal; if no response signal is received from the receiver for a certain amount of time, recognizing the failure to receive the response signal in the transmitter as one of an acknowledgment (ACK) and a negative acknowledgment (NAK) signal, but if the response signal is received, the transmitter recognizes the response signal as a NAK signal including information indicating a reception quality situation. - View Dependent Claims (25, 26, 27)
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28. A method for controlling data transmission in a radio communication system, comprising:
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processing an acknowledgment signal (ACK) as no reply if no error is found in transmitted packet data received by a receiver; determining a degree of a reception quality if the packet data is determined to have an error; transmitting a negative acknowledgment (NAK) signal if the reception quality is in a good condition; transmitting a NAK signal including information indicative of the reception quality if the reception quality is determined to be in a poor condition; and transmitting packet data reflecting each signal from the transmitter, wherein the information indicative of reception quality corresponds to a time delay, transmission power, or a multicode number. - View Dependent Claims (29, 30, 31, 32)
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33. A method for controlling data transmission in a radio communication system, comprising:
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processing an acknowledgment signal (ACK) as no reply if no error is found in transmitted packet data received by a receiver; determining a degree of a reception quality if the packet data is determined to have error; transmitting a negative acknowledgment (NAK) signal if the reception quality is determined to be in a poor condition; transmitting a NAK signal including information indicative of the reception quality if the reception quality is in a good condition; and transmitting packet data reflecting each signal at the transmitter, wherein the information indicative of reception quality corresponds to a time delay, transmission power, or a multicode number.
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34. A method for controlling data transmission in a radio communication system, comprising:
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processing an acknowledgment signal (ACK) as no reply if no error is found in transmitted packet data received by a receiver; determining a degree of a reception quality if the packet data is determined to have an error; transmitting a negative acknowledgment (NAK) signal if the reception quality is in a good condition; transmitting a NAK signal including information indicative of the reception quality if the reception quality is determined to be in a poor condition; and transmitting packet data reflecting each signal from the transmitter, wherein, if the reception quality is in a poor condition, the degree of the reception quality is fragmentized, and information indicative of the reception quality corresponding to each degree is added to the NAK signal before the signal is transmitted.
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35. A method for controlling data transmission in a radio communication system, comprising:
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processing an acknowledgment signal (ACK) as no reply if no error is found in transmitted packet data received by a receiver; determining a degree of a reception quality if the packet data is determined to have an error; transmitting a negative acknowledgment (NAK) signal if the reception quality is in a good condition; transmitting a NAK signal including information indicative of the reception quality if the reception quality is determined to be in a poor condition; and transmitting packet data reflecting each signal from the transmitter, wherein, if each signal includes plural bits, the signals are as many as two to the plural bit power. - View Dependent Claims (36)
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37. A method for controlling data transmission in a radio communication system, comprising:
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transmitting an acknowledgment (ACK) signal if no error is found in transmitted packet data received by a receiver; determining a degree of a reception quality if the packet data is determined to have an error; processing a negative acknowledgment (NAK) signal as no reply if the reception quality is in a good condition; transmitting, at the receiver, a negative acknowledgment (NAK) signal including information indicative of the reception quality if the reception quality is in a poor condition; and transmitting the packet data reflecting each signal at the transmitter, wherein the information indicative of reception quality corresponds to a time delay, transmission power, or a multicode number.
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38. A data retransmission feedback method in a retransmission feedback system comprising:
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determining whether packet data received by a receiver has an error; if the packet data has an error, sending a negative acknowledgment (NAK) signal from the receiver to the transmitter which transmitted the packet data to request retransmission of the packet data, wherein the negative acknowledgment signal includes multiplexed information based on degree of a reception quality, and wherein, if the reception quality is in a poor condition, the NAK signal includes information indicative of the reception quality, said information indicating a time delay, transmission power, or a multicode number. - View Dependent Claims (39, 40)
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41. A terminal, comprising:
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means for sending or receiving information through a physical layer; and means for sending or receiving information though a protocol layer; wherein said means for sending or receiving information through the protocol layer carries information indicative of a reception quality of a transmitted signal, wherein, if the reception quality is in a poor condition, at least one of the means for sending or receiving information through the physical layer and means for sending or receiving information through the protocol layer sends or receives a NAK signal which includes information indicative of the reception quality, said information indicating a time delay, transmission power, or a multicode number.
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Specification