Semi-persistent scheduling (sps) and configured grant (cg) transmission parameter adjustment

Patent metadata

Field	Value
Publication number	US-2023224099-A1
Application number	US-202017925278-A
Country	US
Kind code	A1
Filing date	Jul 30, 2020
Priority date	Jul 30, 2020
Publication date	Jul 13, 2023
Grant date	—

Abstract

A method of wireless communication performed by a user equipment (UE) incudes receiving supplemental semi-persistent scheduling (SPS) via radio resource control (RRC) signaling. The method also includes receiving the downlink re-transmissions according to the supplemental SPS. A method performed by the UE also includes receiving downlink feedback information (DFI) for a packet and determining one or more of resource block allocation, a start and length indicator value (SLIV), or a number of repetitions for re-transmission of the packet in response to the DFI. The method further includes re-transmitting the packet during a re-transmission period based on one or more of the resource block allocation, the SLIV, or the number repetition.

First claim

What is claimed is:

1 . A method of wireless communication performed by a user equipment (UE), comprising:
receiving supplemental semi-persistent scheduling (SPS) via radio resource control (RRC) signaling; and receiving downlink re-transmissions according to the supplemental SPS.

2 . The method of claim 1 , further comprising switching to the supplemental SPS in response to a trigger.

3 . The method of any of claims 1 to 2 , further comprising transmitting a negative acknowledgement (NACK) in response to a transmission from a base station, in which the trigger comprises transmitting the NACK.

4 . The method of any of claims 1 to 3 , in which the supplemental SPS comprises one or more of a resource block allocation, a start and length indicator value (SLIV), or a re-transmission switch period.

5 . The method of any of claims 1 to 4 , in which the resource block allocation and the SLIV of the supplemental SPS are different from a resource block allocation and a SLIV of the initial SPS.

6 . The method of any of claims 1 to 5 , in which a number of resource blocks of the supplemental SPS is greater than a number of resource blocks of the initial SPS.

7 . The method of any of claims 1 to 6 , in which a number of symbols of the supplemental SPS is greater than a number of symbols of the initial SPS.

8 . The method of any of claims 1 to 7 , in which the supplemental SPS configures one or more of a number of re-transmissions and an offset for switching a number of resource blocks or a start and length indicator value (SLIV) during the number of re-transmissions.

9 . The method of any of claims 1 to 8 , further comprising:
receiving downlink control information;
activating the supplemental SPS via the downlink control information.

10 . A user equipment (UE) for wireless communication, comprising:
means for receiving supplemental semi-persistent scheduling (SPS) via radio resource control (RRC) signaling; and means for receiving downlink re-transmissions according to the supplemental SPS.

11 . The UE of claim 10 , further comprising means for switching to the supplemental SPS in response to a trigger.

12 . The UE of claim 11 , further comprising means for transmitting a negative acknowledgement (NACK) in response to a transmission from a base station, in which the trigger comprises transmitting the NACK.

13 . The UE of claim 10 , in which the supplemental SPS comprises one or more of a resource block allocation, a start and length indicator value (SLIV), or a re-transmission switch period.

14 . The UE of claim 13 , in which the resource block allocation and the SLIV of the supplemental SPS are different from a resource block allocation and a SLIV of the initial SPS.

15 . The UE of claim 13 , in which a number of resource blocks of the supplemental SPS is greater than a number of resource blocks of the initial SPS.

16 . The UE of claim 13 , in which a number of symbols of the supplemental SPS is greater than a number of symbols of the initial SPS.

17 . The UE of claim 10 , in which the supplemental SPS configures one or more of a number of re-transmissions and an offset for switching a number of resource blocks or a start and length indicator value (SLIV) during the number of re-transmissions.

18 . The UE of claim 10 , further comprising:
means for receiving downlink control information; and means for activating the supplemental SPS via the downlink control information.

19 . An apparatus for wireless communications at a user equipment (UE), comprising:
a processor; a memory coupled with the processor; and instructions stored in the memory and operable, when executed by the processor, to cause the apparatus:
to receive supplemental semi-persistent scheduling (SPS) via radio resource control (RRC) signaling; and
to receive downlink re-transmissions according to the supplemental SPS.

20 . The apparatus of claim 19 , in which the instructions further cause the apparatus to switch to the supplemental SPS in response to a trigger.

21 . The apparatus of claim 20 , in which the instructions further cause the apparatus to transmit a negative acknowledgement (NACK) in response to a transmission from a base station, in which the trigger comprises transmitting the NACK.

22 . The apparatus of claim 19 , in which the supplemental SPS comprises one or more of a resource block allocation, a start and length indicator value (SLIV), or a re-transmission switch period.

23 . The apparatus of claim 22 , in which the resource block allocation and the SLIV of the supplemental SPS are different from a resource block allocation and a SLIV of the initial SPS.

24 . The apparatus of claim 22 , in which a number of resource blocks of the supplemental SPS is greater than a number of resource blocks of the initial SPS.

25 . The apparatus of claim 22 , in which a number of symbols of the supplemental SPS is greater than a number of symbols of the initial SPS.

26 . The apparatus of claim 19 , in which the supplemental SPS configures one or more of a number of re-transmissions and an offset for switching a number of resource blocks or a start and length indicator value (SLIV) during the number of re-transmissions.

27 . The apparatus of claim 19 , in which the instructions further cause the apparatus:
to receive downlink control information; and to activate the supplemental SPS via the downlink control information.

28 . A non-transitory computer-readable medium having program code recorded thereon for wireless communication, the program code executed by a processor and comprising:
program code to receive supplemental semi-persistent scheduling (SPS) via radio resource control (RRC) signaling; and program code to receive downlink re-transmissions according to the supplemental SPS.

29 . A method of wireless communication performed by a user equipment (UE), comprising:
receiving downlink feedback information (DFI) for a packet; determining one or more of resource block allocation, a start and length indicator value (SLIV), or a number of repetitions for re-transmission of the packet in response to the DFI; and re-transmitting the packet during a re-transmission period based on one or more of the resource block allocation, the SLIV, or the number repetition.

30 . The method of claim 29 , further comprising increasing a number of resource blocks allocated for the re-transmission.

31 . The method any of claims 29 to 30 , further comprising increasing a number of symbols allocated for the re-transmission.

32 . The method any of claims 29 to 31 , further comprising increasing the number of repetitions allocated for the re-transmission.

33 . The method any of claims 29 to 32 , further comprising configuring one or more of a switch period for adjusting the resource block allocation or the number of repetitions during the re-transmission period.

34 . The method of any of claims 29 to 33 , further comprising:
receiving one or more of a configuration for the resource block allocation, the SLIV, or the number of repetitions via radio resource control (RRC) signaling; and
activating the configuration based on downlink control information (DCI).

35 . The m

Assignees

• Chen Siyi
• Xu Changlong
• Sun Jing
• Zhang Xiaoxia
• Prakash Rajat
• Qualcomm Inc

Inventors

• Chen Siyi
• Xu Changlong
• Sun Jing
• Zhang Xiaoxia
• Prakash Rajat

Classifications

• H04L1/1887 Primary

  Scheduling and prioritising arrangements · CPC title

• H04L1/189

  Transmission or retransmission of more than one copy of a message · CPC title

• H04W72/11

  Semi-persistent scheduling · CPC title

• H04W72/232

  the control data signalling from the physical layer, e.g. DCI signalling · CPC title