Method and Arrangement in a Telecommunication System
1 Assignment
0 Petitions
Accused Products
Abstract
A method in a terminal for providing an ACK/NAK message to a base station is provided. The terminal counts the number of assigned downlink subframes detected from the base station resulting in k. The terminal then establishes whether each of a number of transport blocks comprised in the counted k downlink subframes is correctly received or not. In the case when each one of the transport blocks, comprised in the k downlink subframes is estimated as correctly received the terminal provides to the base station an encoded ACK message for the k subframes, which comprises k, the number of subframes.
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Citations
53 Claims
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1-29. -29. (canceled)
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30. A method in a terminal for providing an acknowledgement/not-acknowledgement (ACK/NAK) message to a base station, the base station and the terminal in a telecommunication system, the method comprising:
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receiving downlink subframes from the base station; counting a number of downlink assignments detected in received downlink subframes to k; establishing whether each of a number of transport blocks in the downlink subframes in which a downlink assignment is detected is correctly received or not; when each of the transport blocks in the downlink subframes in which a downlink assignment is detected is estimated as correctly received, providing to the base station an encoded ACK message for the k downlink assignments, which encoded ACK message comprises k, the number of number of detected downlink assignments; obtaining in each subframe a downlink assignment index (DAI) from the base station, the DAI representing a number of previous downlink assignments; establishing if any downlink assignment transmitted by the base station has been missed in any downlink subframe in which a downlink assignment has been detected, and comparing the number of received downlink assignments with the DAI to determine if any previous downlink assignment has been missed; and when a downlink assignment transmitted by the base station has been established to have been missed, providing to the base station one encoded NAK message that is modulated into a constellation point different from a constellation point into which the encoded ACK message would have been modulated. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
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38. A method in a base station for handling an acknowledgement/not-acknowledgement (ACK/NAK) message from a terminal, the base station and terminal in a telecommunication system, the method comprising:
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sending a number of downlink subframes comprising transport blocks to the terminal; signaling to the terminal in each subframe a downlink assignment index (DAI) that represents a number of previous assigned downlink subframes and that is for use by the terminal for establishing if any downlink subframe transmitted by the base station has been missed by comparing a number of received downlink assignments with the signaled DAI; receiving from the terminal for a number k of downlink assignments detected by the terminal one encoded ACK message that includes k when each of the transport blocks included in the downlink subframes in which the terminal has detected a downlink assignment is estimated as correctly received by the terminal; and receiving from the terminal one encoded NAK message that is modulated into a constellation point that is different from a constellation point into which the encoded ACK message would have been modulated when a downlink assignment transmitted by the base station to the terminal has been established to be missed by the terminal. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45)
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46. An arrangement in a terminal for providing an acknowledgement/not-acknowledgement (ACK/NAK) message to a base station, the base station and the terminal in a telecommunication system, the arrangement comprising:
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a receiving unit configured to receive downlink subframes from the base station and to obtain in each received subframe a downlink assignment index (DAI) that represents a number of previous assigned downlink subframes; a counting unit configured to count a number k of downlink assignments detected in received downlink subframes; an establishing unit configured to establish whether each of a number of transport blocks included in a downlink subframe in which a downlink assignment is detected is correctly received; a sending unit configured to provide to the base station for the k downlink assignments an encoded ACK message that includes k when each of the transport blocks in the downlink subframes in which a downlink assignment is detected is estimated as correctly received, wherein the sending unit is further configured to provide to the base station one encoded NAK message that is modulated into a constellation point that is different from a constellation point into which the encoded ACK message would be modulated when a downlink assignment transmitted by the base station is established to be missed; and an establishing unit configured to establish if any downlink assignment transmitted by the base station has been missed in any downlink subframe in which a downlink assignment has been detected, and to compare the number of received downlink assignments with the DAI to determine if any previous downlink subframe has been missed. - View Dependent Claims (47, 48, 49)
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50. An arrangement in a base station for handling an acknowledgement/not-acknowledgement (ACK/NAK) message from a terminal, the base station and the terminal in a telecommunication system, the arrangement comprising:
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a sending unit configured to send a number of downlink subframes including transport blocks to the terminal and to signal to the terminal in each downlink subframe a downlink assignment index (DAI) that represents a number of previous assigned downlink subframes and that enables the terminal to establish if any downlink subframe transmitted by the base station has been missed by comparing a number k of received downlink assignments with a DAI; and a receiving unit configured to receive from the terminal for the k downlink assignments one encoded ACK message that includes k, the number of downlink assignments detected by the terminal, when each transport block in the downlink subframes in which the terminal has detected a downlink assignment is estimated as correctly received by the terminal; wherein the receiving unit is further being configured to receive from the terminal one encoded NAK message that is modulated into a constellation point that is different from a constellation point into which the ACK message would have been modulated when a downlink assignment transmitted by the base station to the terminal has been established to be missed by the terminal. - View Dependent Claims (51, 52, 53)
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Specification