Implicit sounding reference signal aperiodic triggering offset
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsSebastian Faxér, Stephen Grant, Mattias Frenne
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Abstract
A method is performed by a wireless device for transmitting a Sounding Reference Signal, SRS. The method comprises receiving downlink control information triggering an aperiodic SRS transmission, and identifying a slot indicated by the downlink control information. If the slot indicated by the downlink control information is a downlink slot, the wireless device transmits the SRS in a slot that is not a downlink slot.
Claims25
A method performed by a wireless device for transmitting an aperiodic Sounding Reference Signal, SRS, the method comprising:
- receiving downlink control information triggering an aperiodic SRS transmission;
- identifying a first slot indicated by the downlink control information;
- and
- if at least one of one or more symbols of the aperiodic SRS would occur in a downlink symbol of the first slot, transmitting the aperiodic SRS in a second slot in which none of the one or more symbols of the aperiodic SRS occurs in a downlink symbol.
A method performed by a base station for triggering an aperiodic Sounding Reference Signal, SRS, transmission, the method comprising:
- transmitting downlink control information to a UE, wherein the downlink control information triggers the aperiodic SRS transmission by the UE,
- wherein the downlink control information identifies a first slot for the aperiodic SRS transmission by the UE;
- and
- receiving the aperiodic SRS in a second slot in which none of the one or more symbols of the aperiodic SRS occurs in a downlink symbol if said first slot, identified for the aperiodic SRS transmission by the UE, includes at least one downlink symbol in which a symbol of the aperiodic SRS would occur.
A wireless device comprising:
- a transmitter;
- a receiver;
- a processing circuitry;
- and
- a memory, wherein the memory contains instructions, which when executed by the processing circuitry causes the wireless device to:
- receive downlink control information triggering an aperiodic SRS transmission;
- identify a first slot indicated by the downlink control information;
- and
- if at least one of one or more symbols of the aperiodic SRS would occur in a downlink symbol of the first slot, transmit the aperiodic SRS in a second slot in which none of the one or more symbols of the aperiodic SRS occurs in a downlink symbol.
A base station comprising:
- a transmitter;
- a receiver;
- a processing circuitry;
- and
- a memory, wherein the memory contains instructions, which when executed by the processing circuitry causes the base station to:
- transmit downlink control information to a UE, wherein the downlink control information triggers the aperiodic SRS transmission by the UE,
- wherein the downlink control information identifies a first slot for the aperiodic SRS transmission by the UE;
- and
- receive the aperiodic SRS in a second slot in which none of the one or more symbols of the aperiodic SRS occurs in a downlink symbol if said first slot, identified for the aperiodic SRS transmission by the UE, includes at least one downlink symbol in which a symbol of the aperiodic SRS would occur.
Dependencies are inferred from the claim text.