Abstract
The present invention 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 for feeding back ACK information of SPS data packets includes: receiving an uplink downlink assignment index (UL DAI) from a base station (BS) where the value of the UL DAI indicates the number of downlink data packets (N); mapping ACKs/NAKs of k SPS data packets of the downlink data packets to positions from the (N?k+1)th ACK/NAK to the N th ACK/NAK; and feeding back N ACKs/NAKs to the BS. This method can guarantee that N ACKs/NAKs are arranged correctly.
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Specification Information
Specification Information
Technologies
Family Information
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Technologies
Resource configuration Scheduling Feedback
Product
Base Station (eNB/gNB)
Use Cases
Wireless communication
Services
Transmitting/receiving data in uplink
Claim
1. A method for a base station to receive acknowledgement (ACK) information of semi-persistent scheduling (SPS) data packets, comprising:
sending an plink data assignment indicator (UL DAI) to a User Equipment (UE), wherein the UL DAI indicates a number (N) of downlink data packets sent to the UE, wherein the number N is larger than one, and wherein a number k (k
2. The method of claim 1, further comprising:
transmitting an SPS activation signaling at a next time of semi-persistent transmission or at a time of SPS retransmission in response to receiving a NAK feedback to an SPS activation sub-frame.', 'transmitting an SPS activation signaling at a next time of semi-persistent transmission or at a time of SPS retransmission in response to receiving a NAK feedback to an SPS activation sub-frame.
3. The method of claim 1, wherein Nâx88x92k ACKs/NAKs of non-SPS data packets of the downlink data packets is/are placed from the first position of the N ACKs/NAKs.
4. The method of claim 3, further comprising:
sending a downlink data assignment indicator (DL DAI) to the UE, wherein the DL DAI indicates that a downlink data packet is a Mth non-SPS data packet of the downlink data packets (Mâx89§Nâx88x92k);
wherein the received feedback signal comprises Nâx88x92k ACK/NAKs of the non-SPS data packets, an acknowledgement of the Mth non-SPS data packet is placed at the Mth position of the N ACKs/NAKs.', 'sending a downlink data assignment indicator (DL DAI) to the UE, wherein the DL DAI indicates that a downlink data packet is a Mth non-SPS data packet of the downlink data packets (Mâx89§Nâx88x92k);', 'wherein the received feedback signal comprises Nâx88x92k ACK/NAKs of the non-SPS data packets, an acknowledgement of the Mth non-SPS data packet is placed at the Mth position of the N ACKs/NAKs.
5. The method of claim 1, wherein the positions from the (Nâx88x92k+1)th ACK/NAK to the Nth ACK/NAK are used for arranging the acknowledgement of k SPS data packets of the downlink data packets in a positive sequence or a negative sequence or according to an arrival sequence of the SPS data packets.
6. A base station, comprising:
a sending unit, configured to send an uplink data assignment indicator (UL DAI) to a user equipment (UE), wherein the UL DAI indicates a number (N) of downlink data packets sent to the UE; wherein the number N is larger than one, and wherein a number k (k
7. The base station of claim 6, wherein the sending unit is further configured to transmit a SPS activation signaling, and wherein when the receiving unit receives a feedback NAK, the sending unit is further configured to transmit one more SPS activation signaling at a next time of semi-persistent transmission, or transmit one more SPS activation signaling at a time of SPS retransmission, wherein the retransmitted SPS activation signaling is the same as or different from the SPS activation signaling.
8. The base station of claim 6, wherein Nâx88x92k ACKs/NAKs of non-SPS data packets of the downlink data packets is/are placed from the first position of the N ACKs/NAKs.
11. A non-transitory computer readable storage medium storing program codes thereon for use by a base station, wherein the program codes comprise:
instructions for sending an uplink data assignment indicator (UL DAI) to a user equipment (UE), wherein the UL DAI indicates a number (N) of downlink data packets sent to the UE, wherein the number N is larger than one, and wherein a number k (k downlink data packets is/are semi-persistent scheduling (SPS) data packets; and
instructions for receiving from the UE a feedback signal comprising N acknowledgements/negative acknowledgements (ACKs/NAKs) acknowledging the N downlink data packets starting from the first ACK/NAK at the first position, wherein k ACKs/NAKs of the k SPS data packets is/are placed from (Nâx88x92k+1)th to Nth positions of the N ACKs/NAKs.', 'instructions for sending an uplink data assignment indicator (UL DAI) to a user equipment (UE), wherein the UL DAI indicates a number (N) of downlink data packets sent to the UE, wherein the number N is larger than one, and wherein a number k (k downlink data packets is/are semi-persistent scheduling (SPS) data packets; and', 'instructions for receiving from the UE a feedback signal comprising N acknowledgements/negative acknowledgements (ACKs/NAKs) acknowledging the N downlink data packets starting from the first ACK/NAK at the first position, wherein k ACKs/NAKs of the k SPS data packets is/are placed from (Nâx88x92k+1)th to Nth positions of the N ACKs/NAKs
13. The computer program product of claim 11, wherein ACKs/NAKs of non-SPS data packets of the downlink data packets is/are placed from the first position of the N ACKs/NAKs.']
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
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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.