Method and apparatus for feeding back and receiving acknowledgement information of semi-persistent scheduling data packets
First Claim
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1. A method for a user equipment (UE) to feed back acknowledgement (ACK) information of semi-persistent scheduling (SPS) data packets, comprising:
- receiving an uplink data assignment indicator (UL DAI) from a base station (BS), wherein the UL DAI indicates a number (N) of downlink data packets sent by the BS, wherein the number N is greater than 1, and wherein a number k (k<
N) of the downlink data packets is/are SPS data packets;
forming a feedback signal comprising N acknowledgements/negative acknowledgements (ACKs/NAKs) acknowledging the N downlink data packets, wherein k ACKs/NAKs of the k SPS data packets is/are placed from (N−
k+1)th to Nth positions of the N ACKs/NAKs in an uplink ACK/NAK multiplexing mode; and
sending the feedback signal to the BS starting from the ACK/NAK at the first position.
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Abstract
A method and apparatus for feeding back and receiving acknowledgment (ACK) information of semi-persistent scheduling (SPS) data packets are disclosed. The method for feeding back ACK information of SPS data packets includes receiving an uplink downlink assignment index (UL DAI) from a base station (BS), wherein the UL DAI indicates a number (N) of downlink data packets, mapping acknowledgements/negative acknowledgements (ACKs/NAKs) of k SPS data packets of the downlink data packets to positions from the (N−k+1)th ACK/NAK to the Nth ACK/NAK, and feeding back N ACKs/NAKs to the BS.
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Citations
17 Claims
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1. A method for a user equipment (UE) to feed back acknowledgement (ACK) information of semi-persistent scheduling (SPS) data packets, comprising:
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receiving an uplink data assignment indicator (UL DAI) from a base station (BS), wherein the UL DAI indicates a number (N) of downlink data packets sent by the BS, wherein the number N is greater than 1, and wherein a number k (k<
N) of the downlink data packets is/are SPS data packets;forming a feedback signal comprising N acknowledgements/negative acknowledgements (ACKs/NAKs) acknowledging the N downlink data packets, wherein k ACKs/NAKs of the k SPS data packets is/are placed from (N−
k+1)th to Nth positions of the N ACKs/NAKs in an uplink ACK/NAK multiplexing mode; andsending the feedback signal to the BS starting from the ACK/NAK at the first position. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A user equipment (UE), comprising:
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a receiving unit, configured to receive an uplink data assignment indicator (UL DAI) from a base station (BS), wherein the UL DAI indicates a number (N) of downlink data packets sent by the BS, wherein the number N is greater than 1, and wherein a number k (k<
N) of the downlink data packets is/are SPS data packets;a processing unit, configured to form a feedback signal comprising N acknowledgements/negative acknowledgements (ACKs/NAKs) acknowledging the N downlink data packets, wherein k ACKs/NAKs of the k SPS data packets is/are placed from (N−
k+1)th to Nth positions of the N ACKs/NAKs in an uplink ACK/NAK multiplexing mode; anda feedback transmitting unit, configured to send the feedback signal to the BS starting from the ACK/NAK at the first position. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A computer program product comprising a non-transitory computer readable storage medium storing program codes thereon for use by a user equipment (UE), wherein the program codes comprise:
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instructions for receiving an uplink data assignment indicator (UL DAI) from a base station (BS), wherein a value of the UL DAI indicates a number (N) of downlink data packets sent by the BS, wherein the number N is greater than 1, and wherein a number k (k<
N) of the downlink data packets is/are SPS data packets;instructions for forming a feedback signal comprising N acknowledgements/negative acknowledgements (ACKs/NAKs) acknowledging the N downlink data packets, wherein k ACKs/NAKs of the k SPS data packets is/are placed from (N−
k+1)th to Nth positions of the N ACKs/NAKs in an uplink ACK/NAK multiplexing mode; andinstructions for sending the feedback signal to the BS starting from the ACK/NAK at the first position. - View Dependent Claims (16, 17)
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Specification