Apparatus and method for ACK channel transmission in wireless relay communication system
First Claim
1. A method for transmitting ACKnowledge (ACK) channels by a Relay Station (RS) in a wireless communication system, the method comprising:
- when receiving one or more ACK information from one or more lower nodes, checking ACK channel constitution information provided from an upper node;
identifying an ACK channels region corresponding ACK information using the ACK channel constitution information; and
transmitting the one or more ACK information to the upper node in the ACK channel region,wherein the ACK channel region includes a first sub-region comprising first ACK information corresponding to a first data transmitted from the upper node to the RS and a second sub-region comprising second ACK information corresponding to a second data retransmitted from the RS to the one or more lower nodes, andwherein the ACK information includes one of ACK message and NACK message.
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Abstract
An apparatus and a method for transmitting ACKnowledge (ACK) channels by a Relay Station (RS) in a wireless communication system are provided. The method includes, when receiving one or more ACK information from one or more lower nodes, checking ACK channel constitution information provided from an upper node, arranging one or more ACK channels to transmit corresponding ACK information according to the ACK channel constitution information by distinguishing ACK information of one or more data scheduled by the upper node and ACK information of one or more retransmission data not scheduled by the upper node, and transmitting the one or more ACK information to the upper node in the arranged ACK channels.
11 Citations
22 Claims
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1. A method for transmitting ACKnowledge (ACK) channels by a Relay Station (RS) in a wireless communication system, the method comprising:
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when receiving one or more ACK information from one or more lower nodes, checking ACK channel constitution information provided from an upper node; identifying an ACK channels region corresponding ACK information using the ACK channel constitution information; and transmitting the one or more ACK information to the upper node in the ACK channel region, wherein the ACK channel region includes a first sub-region comprising first ACK information corresponding to a first data transmitted from the upper node to the RS and a second sub-region comprising second ACK information corresponding to a second data retransmitted from the RS to the one or more lower nodes, and wherein the ACK information includes one of ACK message and NACK message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus for a Relay Station (RS) in a wireless communication system, the apparatus comprising:
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a receiving part for receiving a signal; an ACKnowledge (ACK) channel constitutor for, when receiving one or more ACK information from one or more lower nodes through the receiving part, detecting ACK channel constitution information provided from an upper node; and a transmitting part for identifying an ACK channel region corresponding ACK information using the ACK channel constitution information, and for transmitting the one or more ACK information to the upper node in the ACK channel region, wherein the ACK channel region includes a first sub-region comprising first ACK information corresponding to a first data transmitted from the upper node to the RS and a second sub-region comprising second ACK information corresponding to a second data retransmitted from the RS to the one or more lower nodes, and wherein the ACK information includes one of ACK message and NACK message. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification