Control signaling for uplink multiple input multiple output, channel state information reference signal configuration and sounding reference signal configuration

Patent metadata

Field	Value
Publication number	US-10863494-B2
Application number	US-201916252294-A
Country	US
Kind code	B2
Filing date	Jan 18, 2019
Priority date	Jan 22, 2018
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

Abstract

Systems, apparatuses, methods, and computer-readable media are provided for time domain resource allocations in wireless communications systems. Disclosed embodiments include time-domain symbol determination and/or indication using a combination of higher layer and downlink control information signaling for physical downlink shared channel and physical uplink shared channel; time domain resource allocations for mini-slot operations; rules for postponing and dropping for multiple mini-slot transmission; and collision handling of sounding reference signals with semi-statically or semi-persistently configured uplink transmissions. Other embodiments may be described and/or claimed.

First claim

The invention claimed is:

1. One or more non-transitory computer-readable storage media (CRSM) comprising instructions, wherein execution of the instructions by one or more processors of a user equipment (UE) is to cause the UE to:
control receipt of a radio resource control (RRC) message, the RRC message including a sounding reference signal (SRS) configuration (SRS-Config) and a nonzero power channel state information reference signal resource set (NZP-CSI-RS-ResourceSet),
wherein the SRS-Config includes one or more sounding reference signal resource sets (SRS-ResourceSets), at least one SRS-ResourceSet of the one or more SRSResourceSets indicating one or more SRS resources,
wherein the NZP-CSI-RS-ResourceSet indicates one or more non-zero power channel state information reference signal (NZP CSI-RS) resources;
wherein same antenna ports are used for the NZP CSI-RS resources in the NZPCSI-RS-ResourceSet having a same port index when the NZP-CSI-RS-ResourceSet includes a trs-Info parameter set to ‘on’;
wherein the NZP CSI-RS resources in the NZP-CSI-RS-ResourceSet are transmitted with a same downlink spatial domain transmission filter when the NZP-CSI-RS-ResourceSet includes a repetition parameter set to ‘on’, and
wherein only one of the trs-Info or the repetition is configured by the NZP-CSI-RS ResourceSet;
when the UE is configured with at least one SRS resource for a configured transmission scheme via a higher layer parameter and the at least one SRS resource is indicated by a received downlink control information (DCI) or the RRC message, control transmission of an SRS in the at least one SRS resource; and
when the UE is not configured with at least one SRS resource, control transmission of a physical uplink shared channel (PUSCH) scheduled by a DCI in a corresponding physical uplink control channel (PUCCH) resource with a lowest resource identifier (ID) within an active uplink (UL) bandwidth part (BWP).

2. The one or more non-transitory CRSM of claim 1 , wherein the PUSCH is a codebook based transmission or a non-codebook based transmission.

3. The one or more non-transitory CRSM of claim 1 , wherein a DCI format of the received DCI is DCI format 0_0 when the UE is not configured with at least one SRS resource, and the DCI format of the received DCI is DCI format 0_1 or DCI format 1_1 when the UE is configured with at least one SRS resource.

4. The one or more non-transitory CRSM of claim 3 , wherein, when the DCI is the DCI format 0_0, execution of the instructions is to cause the UE to:
control transmission of the PUSCH in the corresponding PUCCH resource with the lowest resource ID within the active UL BWP.

5. The one or more non-transitory CRSM of claim 1 , wherein the one or more SRS resources of each SRS-ResourceSet are configured to be used for one of periodic SRS transmissions, semi-persistent SRS transmissions, or aperiodic SRS transmissions.

6. The one or more non-transitory CRSM of claim 5 , wherein at least one SRS-ResourceSet of the one or more SRS-ResourceSets includes the at least one SRS resource.

7. The one or more non-transitory CRSM of claim 6 , wherein the at least one SRS resource is configured to be used for aperiodic SRS transmissions, and
wherein the received DCI includes an SRS request field indicating the at least one SRS resource to trigger transmission of the aperiodic SRS transmissions,
wherein only one SRS resource within the SRSResourceSet configuration is triggered.

8. The one or more non-transitory CRSM of claim 5 , wherein at least one SRS-ResourceSet of the one or more SRS-ResourceSets includes one or more SRS resources configured to be used for the semi-persistent SRS transmissions, and
wherein execution of the instructions is to cause the UE to:
use a same spatial domain filter to transmit the PUSCH as the at least one configured SRS resource indicated by the received DCI when the at least one SRS resource indicated by the received DCI is among the one or more SRS resources configured to be used for semi-persistent SRS transmissions.

9. The one or more non-transitory CRSM of claim 5 , wherein the SRS-Config includes a spatial relation (spatialRelationInfo) configuration to indicate a spatial relation between a reference RS and a target SRS, at least one SRS-ResourceSet of the one or more SRS-ResourceSets including one or more SRS resources configured to be used for the semi-persistent SRS transmissions, and
wherein execution of the instructions is to cause the UE to:
use a same spatial domain filter to transmit the PUSCH as the at least one SRS resource indicated by the spatialRelationInfo configuration when the at least one SRS resource is among the one or more SRS resources configured to be used for semi-persistent SRS transmissions, and the at least one SRS resource is not indicated by the received DCI.

10. The one or more non-transitory CRSM of claim 1 , wherein the NZP-CSI-RS-ResourceSet includes a QCL-Info-PeriodicCSI-RS parameter to indicate a transmission beam for individual ones of the one or more NZP CSI-RS resources.

11. A System-on-Chip (SoC) to be implemented in a user equipment (UE), the SoC comprising:
interface circuitry configured to obtain a radio resource control (RRC) message that includes a non-zero power channel state information reference signal resource set (NZP-CSI-RS-ResourceSet), the NZP-CSI-RS-ResourceSet indicating one or more non-zero power channel state information reference signal (NZP CSI-RS) resources; and
baseband circuitry, coupled to the interface circuitry, configured to:
assume same antenna ports are to be used for the NZP CSI-RS resources in the NZP-CSI-RS-ResourceSet having a same port index when the NZP-CSI-RS-ResourceSet includes a trs-Info parameter set to ‘on’; and
assume that the NZP CSI-RS resources in the NZP-CSI-RS-ResourceSet are to be transmitted with a same downlink spatial domain transmission filter when the NZP-CSI-RS-ResourceSet includes a repetition parameter set to ‘on’,
wherein only one of the trs-Info or the repetition is configured by the NZP-CSI-RS-ResourceSet.

12. The SoC of claim 11 , wherein the NZP-CSI-RS-ResourceSet includes a QCLInfo-PeriodicCSI-RS parameter to indicate a transmission beam for individual ones of the one or more NZP CSI-RS resources.

13. The SoC of claim 11 , wherein the baseband circuitry is configured to:
control transmission of a sounding reference signal (SRS) in at least one configured SRS resource when the at least one SRS resource is indicated by an SRS resource indicator field of a downlink control information (DCI) and the UE is configured with the at least one SRS resource for a configured transmission scheme in the RRC message; and
control transmission of a physical uplink shared channel (PUSCH) scheduled by the DCI in a corresponding physical uplink control channel (PUCCH) resource with a lowest resource identifier (ID) within an active uplink (UL) bandwidth part (BWP) when the UE is not configured with the at least one SRS resource indicated by the SRS resource indicator field of the DCI.

14. The SoC of claim 13 , wherein the configured transmission scheme is a codebook based transmission scheme or a non-codebook based transmission scheme, and
wherein the PUSCH is a codebook based transmission or a non-codebook based transmission.

15. The SoC of claim 13 , wherein a DCI format of the received DCI is DCI format 0_0, and
wherein the baseband circuitry is configured to:
control transmission of the PUSCH in the corresponding PUCCH resource with the lowest resource ID within the active UL BWP.

16. The SoC of claim 13 , wherein a DCI

Assignees

• Apple Inc

Inventors

• Zhang Yushu
• Davydov Alexei
• Wang Guotong
• Xiong Gang
• He Hong

Classifications

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04L5/005 Primary

  of common pilots, i.e. pilots destined for multiple users or terminals · CPC title

• H04L5/0051

  of dedicated pilots, i.e. pilots destined for a single user or terminal · CPC title

• H04L5/0057

  Physical resource allocation for CQI · CPC title

• H04L5/0094

  Indication of how sub-channels of the path are allocated · CPC title