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US 10,477,528 B2Granted
Downlink control information in a wireless device and wireless network
AssigneeOfinno, LLC
InventorsEsmael Hejazi Dinan, Alireza Babaei
Life of this patent
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Abstract
A wireless device receives a downlink control information (DCI) comprising SRS request field indicating whether an SRS is transmitted in the last symbol of the subframe; and an ending symbol field for a physical uplink shared channel (PUSCH) indicating whether the PUSCH is transmitted in a last symbol of the subframe. The wireless device transmits, in the subframe, one or more transport blocks based on the ending symbol field. The wireless device transmits the SRS signal in the last symbol of the subframe when the SRS request field indicates that SRS transmission is triggered. The DCI may further indicate a multi-subframe grant (MSFG).
Claims20
A method comprising:
- receiving, at a wireless device, at least one message comprising configuration parameters for a licensed assisted access (LAA) cell, the configuration parameters comprising one or more sounding reference signal (SRS) parameters;
- receiving a downlink control information (DCI) comprising:
- a resource block assignment field for a subframe;
- an SRS request field indicating whether an SRS is transmitted in the last symbol of the subframe;
- and
- an ending symbol field for a physical uplink shared channel (PUSCH) indicating whether the PUSCH is not transmitted in the last symbol of the subframe for a first listen before talk procedure to be performed during the last symbol of the subframe;
- transmitting, in the subframe and via the PUSCH, one or more transport blocks based on the ending symbol field;
- and
- transmitting the SRS in the last symbol of the subframe when the SRS request field indicates that SRS transmission is triggered;
- and
- wherein no cell-specific SRS subframe is configured for the LAA cell.
8 more elements
A method comprising:
- receiving one or more radio resource control (RRC) messages comprising configuration parameters for a licensed assisted access (LAA) cell;
- receiving a downlink control information (DCI) indicating uplink resources for an uplink burst comprising a number of a plurality of consecutive uplink subframes of the LAA cell, the DCI comprising:
- the number of the plurality of consecutive uplink subframes in the uplink burst;
- an assignment of a plurality of resource blocks;
- a sounding reference signal (SRS) request field indicating whether an SRS is transmitted in a last symbol of the uplink burst;
- and
- an ending symbol field for a physical uplink shared channel (PUSCH) indicating whether the PUSCH is not transmitted in the last symbol of the uplink burst for a listen before talk procedure to be performed during the last symbol of the uplink burst;
- and
- transmitting, via the plurality of resource blocks used across the plurality of consecutive uplink subframes, one or more transport blocks in the PUSCH according to the ending symbol field.
6 more elements
A wireless device comprising:
- one or more processors;
- and
- memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
- receive one or more radio resource control (RRC) messages comprising configuration parameters for a licensed assisted access (LAA) cell;
- receive a downlink control information (DCI) indicating uplink resources for an uplink burst comprising a number of a plurality of consecutive uplink subframes of the LAA cell, the DCI comprises:
- the number of the plurality of consecutive uplink subframes in the uplink burst;
- an assignment of a plurality of resource blocks;
- a sounding reference signal (SRS) request field indicating whether an SRS is transmitted in a last symbol of the uplink burst;
- and
- an ending symbol field for a physical uplink shared channel (PUSCH) indicating whether the PUSCH is not transmitted in the last symbol of the uplink burst for a listen before talk procedure to be performed during the last symbol of the subframe;
- and
- transmit, via the plurality of resource blocks used across the plurality of consecutive uplink subframes, one or more transport blocks in the PUSCH according to the ending symbol field.
9 more elements
Dependencies are inferred from the claim text.