PUCCH resource indication for CSI and HARQ feedback
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorSebastian Faxér
Life of this patent
Estimating the term…
Abstract
Systems and methods for triggering CSI reporting on PUCCH are described herein. A network node transmits a downlink-related control message including a Channel State Information (CSI) request field and a Physical Uplink Control Channel (PUCCH) resource indicator. A wireless device receives the control message and determines to trigger a CSI report in accordance with the CSI request field and the PUCCH resource indicator.
Claims30
A method performed by a wireless device, the method comprising:
- receiving, on a Physical Downlink Control Channel (PDCCH), a downlink-related Downlink Control Information (DCI) message including a grant to schedule a Physical Downlink Shared Channel (PDSCH) transmission and a Physical Uplink Control Channel (PUCCH) resource indicator, wherein the PUCCH resource indicator indicates a resource for transmitting a Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) for the scheduled PDSCH transmission;
- determining to trigger a Channel State Information (CSI) report in accordance with a CSI request field in the downlink-related DCI message;
- determining a PUCCH resource for the triggered CSI report in accordance with the PUCCH resource indicator indicating the resource for transmitting the HARQ-ACK in the downlink-related DCI message;
- and
- transmitting the CSI report on the determined PUCCH resource.
A wireless device comprising a radio interface and processing circuitry configured to:
- receive, on a Physical Downlink Control Channel (PDCCH), a downlink-related Downlink Control Information (DCI) message including a grant to schedule a Physical Downlink Shared Channel (PDSCH) transmission and a Physical Uplink Control Channel (PUCCH) resource indicator, wherein the PUCCH resource indicator indicates a resource for transmitting a Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) for the scheduled PDSCH transmission;
- determine to trigger a Channel State Information (CSI) report in accordance with a CSI request field in the downlink-related DCI message;
- determine a PUCCH resource for the triggered CSI report in accordance with the PUCCH resource indicator indicating the resource for transmitting the HARQ-ACK in the downlink-related DCI message;
- and
- transmit the CSI report on the determined PUCCH resource.
A method performed by a network node, the method comprising:
- generating a downlink-related Downlink Control Information (DCI) message including a Channel State Information (CSI) request field, a grant to schedule a Physical Downlink Shared Channel (PDSCH) transmission and a Physical Uplink Control Channel (PUCCH) resource indicator, wherein the PUCCH resource indicator indicates a resource for transmitting a Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) for the scheduled PDSCH transmission;
- transmitting, on a Physical Downlink Control Channel (PDCCH), the generated downlink-related DCI message;
- and
- receiving a CSI report on a PUCCH resource in accordance with the downlink-related DCI message.
A network node comprising a radio interface and processing circuitry configured to:
- generate a downlink-related Downlink Control Information (DCI) message including a Channel State Information (CSI) request field, a grant to schedule a Physical Downlink Shared Channel (PDSCH) transmission and a Physical Uplink Control Channel (PUCCH) resource indicator, wherein the PUCCH resource indicator indicates a resource for transmitting a Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) for the scheduled PDSCH transmission;
- transmit, on a Physical Downlink Control Channel (PDCCH), the configured downlink-related DCI message;
- and
- receive a CSI report on a PUCCH resource in accordance with the downlink-related DCI message.
Dependencies are inferred from the claim text.