Abstract
The application relates to radio communications and discloses a method and apparatus for feeding back and receiving acknowledgment (ACK) information of semi-persistent scheduling (SPS) data packets. The method includes receiving downlink data packets and an uplink data assignment indicator (UL DAI) from a base station wherein a value of the UL DAI indicates a number (N) of all scheduled downlink sub-frames which scheduled by the base station for the user equipment the number N is greater than 1 and a number k (k<N) of the downlink data packets is/are semi-persistent scheduling (SPS) data packets; forming a feedback signal comprising N acknowledgements/negative acknowledgements (ACKs/NAKs) acknowledging the N downlink data packets 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; and sending the feedback signal to the base station starting from the ACK/NAK at the first position.
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Specification Information
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Technologies
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Technologies
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Claim
1. A method for a base station (BS) to receive acknowledgement information of semi-persistent scheduling (SPS) data packets, comprising:
scheduling a quantity N of physical downlink shared channel (PDSCH) sub-frames for a user equipment (UE), the N scheduled PDSCH sub-frames including at least one SPS sub-frame and at least one dynamic scheduling sub-frame; and
receiving from the UE a feedback signal comprising N acknowledgements/negative acknowledgements (ACKs/NAKs) in response to the scheduled N PDSCH sub-frames, wherein the ACK/NAK associated with the at least one SPS sub-frame follows after the at least one ACK/NAK associated with the at least one dynamic scheduling sub-frame in the feedback signal.
2. The method according to claim 1, wherein an SPS sub-frame is a sub-frame that carries a data packet without a resource scheduling index, and a dynamic scheduling sub-frame is a sub-frame that carries a data packet with a resource scheduling index.
3. The method according to claim 1, wherein the N scheduled PDSCH sub-frames include one SPS sub-frame, and the ACK/NAK in response to the SPS sub-frame is placed in the feedback signal at the last position of the N ACKs/NAKs.
4. The method according to claim 1, further comprising:
sending an uplink data assignment indicator (UL DAI) to the UE, and wherein the UL DAI indicates the quantity N of the scheduled PDSCH sub-frames.
5. A base station, comprising:
a scheduler, configured to schedule a quantity N of physical downlink shared channel (PDSCH) sub-frames for a user equipment (UE), the N scheduled PDSCH sub-frames including at least one semi-persistent scheduling (SPS) sub-frame and at least one dynamic scheduling sub-frame; and
a receiver, configured to receive from the UE a feedback signal comprising N acknowledgements/negative acknowledgements (ACKs/NAKs) in response to the scheduled N PDSCH sub-frames, wherein the ACK/NAK associated with the at least one SPS sub-frame follows after the ACK/NAK associated with the at least one dynamic scheduling sub-frame in the feedback signal.
6. The base station according to claim 5, wherein an SPS sub-frame is a sub-frame that carries a data packet without a resource scheduling index, and a dynamic scheduling sub-frame is a sub-frame that carries a data packet with a resource scheduling index.
7. The base station according to claim 5, wherein the N scheduled PDSCH sub-frames include one SPS sub-frame, and the ACK/NAK in response to the SPS sub-frame is placed in the feedback signal at the last position of the N ACKs/NAKs.
8. The base station according to claim 5, further comprising a transmitter configured to send an uplink data assignment indicator (UL DAI) to the UE, and wherein the UL DAI indicates the quantity N of the scheduled PDSCH sub-frames.
9. A computer program product comprising a non-transitory storage medium having stored thereon a computer program for use by a base station, wherein the program comprises:
instructions for scheduling a quantity N of physical downlink shared channel (PDSCH) sub-frames for a user equipment (UE), the N scheduled PDSCH sub-frames including at least one semi-persistent scheduling (SPS) sub-frame and at least one dynamic scheduling sub-frame; and
instructions for receiving from the UE a feedback signal comprising N acknowledgements/negative acknowledgements (ACKs/NAKs) in response to the scheduled N PDSCH sub-frames, wherein the ACK/NAK associated with the at least one SPS sub-frame follows after the ACK/NAK associated with the at least one dynamic scheduling sub-frame in the feedback signal.
10. The computer program product according to claim 9, wherein an SPS sub-frame is a sub-frame that carries a data packet without a resource scheduling index, and a dynamic scheduling sub-frame is a sub-frame that carries a data packet with a resource scheduling index.
11. The computer program product according to claim 9, wherein the N scheduled PDSCH sub-frames include one SPS sub-frame, and the ACK/NAK in response to the SPS sub-frame is placed in the feedback signal at the last position of the N ACKs/NAKs.
12. The computer program product according to claim 9, wherein the program further comprises instructions for sending an uplink data assignment indicator (UL DAI) to the UE, and the UL DAI indicates the quantity N of the scheduled PDSCH sub-frames.
Associated Portfolios
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.