Auto re-transmission request method in a wireless communication system
First Claim
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1. An Automatic Re-transmission Request (ARQ) method for a transmitter in a broadband wireless access communication system, comprising the steps of:
- activating an ARQ timer if transmission data or retransmission data exist;
transmitting the transmission data or the retransmission data to a receiver; and
receiving a response signal for the transmitted data or the retransmitted data and stopping the ARQ timer if response signals have been received for all data and neither transmission data nor retransmission data exists;
reactivating the ARQ timer upon receipt of transmission data to be transmitted to the receiver from an upper layer while the ARQ timer is stopped; and
performing an ARQ reset upon receipt of a response signal for data not transmitted from the transmitter.
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Abstract
An ARQ system and method for a BWA communication system are provided. A transmitter activates an ARQ timer if exist transmission data or retransmission data and transmits the transmission data or the retransmission data to a receiver. The transmitter then receives a response signal for the transmitted data or the retransmitted data and stops the ARQ timer in the not exist of transmission data.
21 Citations
13 Claims
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1. An Automatic Re-transmission Request (ARQ) method for a transmitter in a broadband wireless access communication system, comprising the steps of:
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activating an ARQ timer if transmission data or retransmission data exist; transmitting the transmission data or the retransmission data to a receiver; and receiving a response signal for the transmitted data or the retransmitted data and stopping the ARQ timer if response signals have been received for all data and neither transmission data nor retransmission data exists; reactivating the ARQ timer upon receipt of transmission data to be transmitted to the receiver from an upper layer while the ARQ timer is stopped; and performing an ARQ reset upon receipt of a response signal for data not transmitted from the transmitter. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An Automatic Re-transmission Request (ARQ) method for a receiver in a broadband wireless access communication system, comprising the steps of:
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activating an ARQ timer upon receipt of data from a transmitter; decoding the received data and transmitting a response signal corresponding to the decoding result to the transmitter; stopping the ARQ timer if all data has been successfully received from the transmitter or if the decoded data is transmitted to an upper layer; reactivating the ARQ timer upon receipt of data from the transmitter while the ARQ timer is stopped; and performing an ARQ reset if transmission errors have occurred to the received data. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification