Multi-transmitter scheduling using sub-slot based physical sidelink shared channels

Patent metadata

Field	Value
Publication number	US-11825475-B2
Application number	US-202117377100-A
Country	US
Kind code	B2
Filing date	Jul 15, 2021
Priority date	Jul 15, 2021
Publication date	Nov 21, 2023
Grant date	Nov 21, 2023

Abstract

Wireless communications systems and methods related to communicating information are provided. A method of wireless communication performed by a user equipment (UE) may include mapping a sub-physical sidelink shared channel (sub-PSSCH), sidelink control information (SCI), and an automatic gain control (AGC) symbol to a sub-slot of a plurality of sub-slots of a slot and transmitting, to at least one other UE, a transport block via the sub-PSSCH of the sub-slot.

First claim

What is claimed is:

1. A method of wireless communication performed by a user equipment (UE), the method comprising:
mapping a sub-physical sidelink shared channel (sub-PSSCH), sidelink control information (SCI), and an automatic gain control (AGC) symbol to each sub-slot of a plurality of sub-slots of a slot; and
transmitting, to at least one other UE, a transport block via the sub-PSSCH of the sub-slot.

2. The method of claim 1 , wherein:
the SCI comprises an SCI- 1 or an SCI- 2 ; and
each sub-slot of the plurality of sub-slots comprises at least one of:
the SCI;
the sub-PSSCH;
the AGC symbol;
a physical sidelink control channel (PSCCH); or
a gap symbol.

3. The method of claim 1 , further comprising:
mapping the AGC symbol to a leading symbol of the sub-slot of the plurality of sub-slots; and
mapping a gap symbol to an ending symbol of the sub-slot of the plurality of sub-slots.

4. The method of claim 1 , further comprising:
transmitting, to the at least one other UE, the SCI via a physical sidelink control channel (PSCCH), wherein the SCI comprises an SCI- 1 .

5. The method of claim 4 , wherein the SCI- 1 comprises at least one of:
a beta offset associated with an SCI- 2 ;
a modulation and encoding scheme of the sub-PSSCH;
resource assignments for at least one sub-slot of the plurality of sub-slots; or
resource assignments for at least one sub-slot of another slot.

6. The method of claim 1 , further comprising:
transmitting, to the at least one other UE, the SCI via the sub-PSSCH wherein the SCI comprises an SCI- 2 .

7. The method of claim 1 , further comprising:
mapping a physical sidelink control channel (PSCCH) to the sub-slot; and
transmitting a sub-slot SCI- 1 via the PSCCH when the UE and the at least one other UE support the plurality of sub-slots of the slot.

8. The method of claim 1 , further comprising:
mapping a physical sidelink control channel (PSCCH) to the sub-slot; and
transmitting a sub-slot SCI- 1 and an SCI- 1 via the PSCCH when at least one of the UE or the at least one other UE does not support the plurality of sub-slots of the slot.

9. The method of claim 8 , wherein the SCI- 1 is located in a leading sub-slot of the plurality of sub-slots.

10. The method of claim 1 , further comprising transmitting an SCI- 1 over a physical sidelink control channel (PSCCH) in a leading sub-slot of the plurality of sub-slots, wherein the PSCCH does not include a sub-slot SCI- 1 .

11. The method of claim 1 , further comprising receiving, from a network unit, a resource pool (RP) configuration.

12. The method of claim 11 , wherein the RP configuration comprises:
a sub-slot RP in a first frequency; and
a slot RP in a second frequency different from the first frequency.

13. The method of claim 11 , wherein the RP configuration comprises a sub-slot RP in a first slot and a slot RP in a second slot different from the first slot.

14. The method of claim 11 , wherein:
the RP configuration comprises a sub-slot RP or a slot RP;
the sub-slot RP comprises a same frequency domain resource partition as the slot RP; and
the receiving the RP configuration comprises receiving, from the network unit, an indicator that indicates whether the RP configuration includes the sub-slot RP or the slot RP; and
further comprising:
transmitting, to the at least one other UE, in a leading sub-slot of the plurality of sub-slots an SCI- 1 that includes an indicator that indicates to use one of the sub-slot RP or the slot RP.

15. The method of claim 11 , wherein:
the RP configuration comprises a sub-slot RP and a slot RP;
at least one resource of the sub-slot RP is common to the slot RP; and
the receiving the RP configuration comprises receiving, from the network unit, an indicator to utilize one of the sub-slot RP or the slot RP.

16. The method of claim 11 , wherein:
the RP configuration comprises a sub-slot RP and a slot RP; and
further comprising:
transmitting, to the at least one other UE, in a leading sub-slot of the plurality of sub-slots an SCI- 1 that includes an indicator that indicates to use one of the sub-slot RP or the slot RP.

17. The method of claim 11 , further comprising:
transmitting, to the at least one other UE, the SCI in a leading sub-slot of the plurality of sub-slots, wherein the SCI includes an indicator that indicates whether the at least one other UE should monitor for a sub-slot SCI- 1 on a sub-slot basis or monitor for an SCI- 1 on a subchannel basis.

18. The method of claim 1 , wherein:
the SCI includes an indicator that indicates reserved resources; and
the reserved resources are based on a sub-slot granularity.

19. The method of claim 1 , further comprising:
transmitting, to the at least one other UE, the SCI in a leading sub-slot of the plurality of sub-slots; and
refraining from transmitting, to the at least one other UE, the transport block.

20. A user equipment (UE) comprising:
a transceiver, a memory, and at least one processor coupled to the transceiver and the memory, wherein the UE is configured to:
map a sub-physical sidelink shared channel (sub-PSSCH), sidelink control information (SCI), and an automatic gain control (AGC) symbol to each sub-slot of a plurality of sub-slots of a slot; and
transmit, to at least one other UE, a transport block via the sub-PSSCH of the sub-slot.

21. The UE of claim 20 , wherein:
the SCI comprises an SCI- 1 or an SCI- 2 ; and
each sub-slot of the plurality of sub-slots comprises at least one of:
the SCI;
the sub-PSSCH;
the AGC symbol;
a physical sidelink control channel (PSCCH); or
a gap symbol.

22. The UE of claim 20 , wherein the UE is further configured to:
receive, from a network unit, a resource pool (RP) configuration, wherein the RP configuration comprises a sub-slot RP and a slot RP;
receive, from the network unit, an indicator that indicates whether the RP configuration includes the sub-slot RP or the slot RP; and
transmit, to the at least one other UE, in a leading sub-slot of the plurality of sub-slots an SCI- 1 that includes an indicator that indicates to use one of the sub-slot RP or the slot RP.

23. A user equipment (UE) comprising:
means for mapping a sub-physical sidelink shared channel (sub-PSSCH), sidelink control information (SCI), and an automatic gain control (AGC) symbol to each sub-slot of a plurality of sub-slots of a slot; and
means for transmitting, to at least one other UE, a transport block via the sub-PSSCH of the sub-slot.

24. The UE of claim 23 , wherein:
the SCI comprises an SCI- 1 or an SCI- 2 ; and
each sub-slot of the plurality of sub-slots comprises at least one of:
the SCI;
the sub-PSSCH;
the AGC symbol;
a physical sidelink control channel (PSCCH); or
a gap symbol.

25. The UE of claim 23 , further comprising:
means for mapping the AGC symbol to a leading symbol of the sub-slot of the plurality of sub-slots; and
means for mapping a gap symbol to an ending symbol of the sub-slot of the plurality of sub-slots.

26. The UE of claim 23 , further comprising:
means for transmitting, to the at least one other UE, the SCI via a physical sidelink control channel (PSCCH), wherein the SCI comprises an SCI- 1 .

27. A non-transitory computer-readable medium having program code recorded thereon, the program code comprising:
code for causing a user equipment (UE) to map a

Assignees

• Qualcomm Inc

Inventors

• Liu Chih-Hao
• Sun Jing
• Fong Lik Hang Silas
• Xue Yisheng
• Zhang Xiaoxia
• Ryu Jung Ho

Classifications

• H04W72/20 Primary

  Control channels or signalling for resource management · CPC title

• H04W52/52

  using AGC [Automatic Gain Control] circuits or amplifiers · CPC title

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title

• H04L5/0044 Primary

  Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title