Method for transmitting a data block in radio communication system
First Claim
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1. A method of transmitting a data block in a wireless communication system, the method comprising:
- transmitting, by a transmitter, the data block to a hybrid automatic repeat request (HARQ) entity of a receiver;
receiving, by the transmitter from the HARQ entity of the receiver, a HARQ not-acknowledgement (NACK) indicating a reception failure, by the receiver, of the data block due to an acknowledgement (ACK)-NACK error that occurs when the HARQ NACK transmitted by the HARQ entity of the receiver is actually a HARQ ACK;
receiving, by the transmitter from an automatic repeat request (ARQ) entity of the receiver, an ARQ feedback message indicating a reception success, by the receiver, of the data block,wherein a polling indicator is transmitted for triggering transmission of the ARQ feedback message,wherein the ARQ feedback message is periodically transmitted using a header of a medium access control (MAC) protocol data unit (PDU),wherein the ARQ feedback message is transmitted by the ARQ entity of the receiver after performing the steps of;
detecting the NACK-ACK error by the HARQ entity of the receiver; and
transmitting internal signaling for reporting the NACK-ACK error by the HARQ entity of the receiver to the ARQ entity of the receiver,wherein the ARQ feedback message is transmitted without a normal resource request procedure; and
confirming, by the transmitter, the reception success of the data block by using the ARQ feedback message.
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Abstract
A method of transmitting a data block in a wireless communication system is provided. The method includes transmitting the data block, receiving hybrid automatic repeat request (HARQ) not-acknowledgement (NACK) for the data block, receiving an automatic repeat request (ARQ) feedback message indicating a reception state of the data block, and determining whether to retransmit the data block by using the ARQ feedback message.
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Citations
7 Claims
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1. A method of transmitting a data block in a wireless communication system, the method comprising:
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transmitting, by a transmitter, the data block to a hybrid automatic repeat request (HARQ) entity of a receiver; receiving, by the transmitter from the HARQ entity of the receiver, a HARQ not-acknowledgement (NACK) indicating a reception failure, by the receiver, of the data block due to an acknowledgement (ACK)-NACK error that occurs when the HARQ NACK transmitted by the HARQ entity of the receiver is actually a HARQ ACK; receiving, by the transmitter from an automatic repeat request (ARQ) entity of the receiver, an ARQ feedback message indicating a reception success, by the receiver, of the data block, wherein a polling indicator is transmitted for triggering transmission of the ARQ feedback message, wherein the ARQ feedback message is periodically transmitted using a header of a medium access control (MAC) protocol data unit (PDU), wherein the ARQ feedback message is transmitted by the ARQ entity of the receiver after performing the steps of; detecting the NACK-ACK error by the HARQ entity of the receiver; and transmitting internal signaling for reporting the NACK-ACK error by the HARQ entity of the receiver to the ARQ entity of the receiver, wherein the ARQ feedback message is transmitted without a normal resource request procedure; and confirming, by the transmitter, the reception success of the data block by using the ARQ feedback message. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus for wireless communication, comprising:
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a radio frequency (RF) unit; and a processor coupled to the RF unit and configured to; transmit a data block to a hybrid automatic repeat request (HARQ) entity of a receiver, receive, from the HARQ entity of the receiver, a HARQ not-acknowledgement (NACK) indicating a reception failure, by the receiver, of the data block due to an acknowledgement (ACK)-NACK error that occurs when the HARQ NACK transmitted by the HARQ entity of the receiver is actually a HARQ ACK, receive, from an automatic repeat request (ARQ) entity of the receiver, an ARQ feedback message indicating a reception success, by the receiver, of the data block wherein a polling indicator is transmitted for triggering transmission of the ARO feedback message, wherein the ARQ feedback message is periodically transmitted using a header of a medium access control (MAC) protocol data unit (PDU), wherein the ARQ feedback message is transmitted by the ARQ entity of the receiver after performing the steps of; detecting the NACK-ACK error by the HARQ entity of the receiver; and transmitting internal signaling for reporting the NACK-ACK error by the HARQ entity of the receiver to the ARQ entity of the receiver, wherein the ARQ feedback message is transmitted without a normal resource request procedure; and confirm the reception success of the data block by using the ARQ feedback message.
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Specification