US 12,750,844 B2Granted

Configured grant based small data transmission (CG-SDT) in RRC inactive state

AssigneeIntel Products IP LLC

InventorGang Xiong

Life of this patent

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Abstract

A user equipment (UE) configured for multi-beam operation in a fifth-generation new radio (5G-NR) system may decode a physical downlink control channel (PDCCH). When a DCI format for a configured grant (CG) based small data transmission (SDT) (CG-SDT) is detected and a transport block (TB) is received in a corresponding physical downlink shared channel (PDSCH), the UE may assume that a demodulation reference signal (DM-RS) antenna port associated with PDCCH receptions and a DM-RS antenna port associated with PDSCH receptions are quasi co-located (QCL) with a synchronization signal/physical broadcast channel (SS/PBCH) associated with a physical uplink shared channel (PUSCH) resource for the CG-SDT. During the CG-SDT, the UE may encode a PUCCH for transmission using a same spatial domain transmission filter as a last PUSCH transmission.

Claims15

Dependent claims

An apparatus for a user equipment (UE) configured for operation in a fifth-generation new radio (5G-NR) system, the apparatus comprising:

processing circuitry;
and memory,
wherein for a configured-grant (CG) based physical uplink shared channel (PUSCH) (CG-based PUSCH) transmission in a Radio Resource Control (RRC) inactive (RRC_INACTIVE) state, the processing circuitry is configured to:
decode a physical downlink control channel (PDCCH) reception to detect a downlink control information (DCI) format,
wherein when a DCI format for a configured grant (CG) based small data transmission (SDT) (CG-SDT) is detected scheduling the CG-based PUSCH transmission and a transport block (TB) is received in a corresponding physical downlink shared channel (PDSCH) reception, determine, based on the DCI format, that a demodulation reference signal (DM-RS) antenna port associated with the PDCCH reception and a DM-RS antenna port associated with the PDSCH reception are quasi co-located (QCL) with a synchronization signal/physical broadcast channel (SS/PBCH) associated with a physical uplink shared channel (PUSCH) resource for the CG-SDT;
configure the UE to transmit the CG-based PUSCH transmission that was scheduled by the DCI format, without a PRACH preamble, in the PUSCH resource for the CG-SDT while the UE is in the RRC INACTIVE state;
and
configure the UE to transmit a physical uplink control channel (PUCCH) with HARQ-ACK information associated with the PDSCH reception,
wherein the processing circuitry is to configure the UE to use a same spatial domain transmission filter for transmission of the PUCCH that was used by the UE for as a last PUSCH transmission when the processing circuitry has determined that the DM-RS antenna port associated with the corresponding PDCCH reception and the DM-RS antenna port associated with the PDSCH reception are QCL with the SS/PBCH associated with the PUSCH resource for the CG-SDT, and
wherein the memory is configured to store parameters for the spatial domain transmission filter.

7 more elements

A non-transitory computer-readable storage medium that stores instructions for execution by processing circuitry of a user equipment (UE) configured for operation in a fifth-generation new radio (5G-NR) system, wherein for a configured-grant (CG) based physical uplink shared channel (PUSCH) (CG-based PUSCH) transmission in a Radio Resource Control (RRC) inactive (RRC_INACTIVE) state, the processing circuitry is configured to:

decode a physical downlink control channel (PDCCH) reception to detect a downlink control information (DCI) format,
wherein when a DCI format for a configured grant (CG) based small data transmission (SDT) (CG-SDT) is detected scheduling the CG-based PUSCH transmission and a transport block (TB) is received in a corresponding physical downlink shared channel (PDSCH) reception, determine, based on the DCI format, that a demodulation reference signal (DM-RS) antenna port associated with the PDCCH reception and a DM-RS antenna port associated with the PDSCH reception are quasi co-located (QCL) with a synchronization signal/physical broadcast channel (SS/PBCH) associated with a physical uplink shared channel (PUSCH) resource for the CG-SDT;
configure the UE to transmit the CG-based PUSCH transmission that was scheduled by the DCI format, without a PRACH preamble, in the PUSCH resource for the CG-SDT while the UE is in the RRC INACTIVE state;
and
configure the UE to transmit a physical uplink control channel (PUCCH) with HARQ-ACK information associated with the PDSCH reception,
wherein the processing circuitry is to configure the UE to use a same spatial domain transmission filter for transmission of the PUCCH that was used by the UE for as a last PUSCH transmission when the processing circuitry has determined that the DM-RS antenna port associated with the corresponding PDCCH reception and the DM-RS antenna port associated with the PDSCH reception are QCL with the SS/PBCH associated with the PUSCH resource for the CG-SDT.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/280,098Filed 21 Mar 2022 · us provisional application
Priority: 1 Apr 2021
Published: US 2024/0163868 A116 May 2024
Granted: 29 Sep 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

H04W 72/1268
Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows: of uplink data flows
H04B 7/06968
Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping: using quasi-colocation [QCL] between signals
H04L 5/0044
Arrangements for allocating sub-channels of the transmission path: allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
H04L 5/0051
Allocation of pilot signals, i.e. of signals known to the receiver: of dedicated pilots, i.e. pilots destined for a single user or terminal

Family

Application63/169,602Us provisional application · filed 1 Apr 2021
Application63/181,067Us provisional application · filed 28 Apr 2021
Application63/250,161Us provisional application · filed 29 Sep 2021
Application63/284,561Us provisional application · filed 30 Nov 2021
US 2024/0163868 A1Pre-grant publication · published 16 May 2024
US 12,750,844 B2This patent

From the US filing history. Foreign family members aren’t listed.