Positioning method by user device in wireless communication system
AssigneeLG Electronics Inc.
InventorsJongseob Baek, Hanbyul Seo, Woosuk Ko, Seungmin Lee
Life of this patent
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Abstract
An aspect of the present disclosure provides a method by a user device in a wireless communication system, the method comprising: receiving positioning reference signal (PRS) configuration information; performing listen-to-talk (LBT) for an unlicensed band; on the basis of the PRS configuration information, transmitting a first PRS to an anchor node (AN) on a channel in an idle state according to the LBT, among multiple channels included in the unlicensed band; and on the basis of the PRS configuration information, receiving a second PRS from the AN on the channel, wherein the first PRS is transmitted immediately after the LBT is performed.
Claims12
A method of a user equipment (UE) in a wireless communication system, the method comprising:
- receiving sounding reference signal (SRS) configuration information and positioning reference signal (PRS) configuration information;
- performing listen before talk (LBT) with respect to an unlicensed-band;
- transmitting a (SRS) to an anchor node (AN) based on the SRS configuration information on a channel in an idle state according to the LBT among a plurality of channels included in the unlicensed-band;
- receiving information related to a Tx−Rx time difference (TRTD) from the AN;
- receiving a PRS from the AN based on the PRS configuration information on the channel;
- and
- obtaining round trip time (RTT) based on the SRS, the PRS and the TRTD,
- wherein the SRS is transmitted immediately after the LBT is performed, and
- wherein the TRTD is a time difference value between a time at which the AN receives the SRS and a time at which the AN transmits the PRS.
An apparatus for a user equipment (UE) in a wireless communication system, the apparatus comprising:
- at least one processor;
- and
- at least one memory operatively connected to the at least one processor and configured to store at least one instruction for allowing the at least one processor to perform operations,
- wherein the operations includes:
- receiving sounding reference signal (SRS) configuration information and positioning reference signal (PRS) configuration information;
- performing listen before talk (LBT) with respect to an unlicensed-band;
- transmitting a SRS to an anchor node (AN) based on the SRS configuration information on a channel in an idle state according to the LBT among a plurality of channels included in the unlicensed-band;
- receiving information related to a Tx−Rx time difference (TRTD) from the AN;
- receiving a PRS from the AN based on the PRS configuration information on the channel;
- and
- obtaining round trip time (RTT) based on the SRS, the PRS and the TRTD,
- wherein the SRS is transmitted immediately after the LBT is performed, and
- wherein the TRTD is a time difference value between a time at which the AN receives the SRS and a time at which the AN transmits the PRS.
A processor for performing operations for a user equipment (UE) in a wireless communication system, the operations comprising:
- receiving sounding reference signal (SRS) configuration information and positioning reference signal (PRS) configuration information;
- performing listen before talk (LBT) with respect to an unlicensed-band;
- transmitting a SRS to an anchor node (AN) based on the SRS configuration information on a channel in an idle state according to the LBT among a plurality of channels included in the unlicensed-band;
- receiving information related to a Tx−Rx time difference (TRTD) from the AN;
- receiving a PRS from the AN based on the PRS configuration information on the channel;
- and
- obtaining round trip time (RTT) based on the SRS, the PRS and the TRTD,
- wherein the SRS is transmitted immediately after the LBT is performed, and
- wherein the TRTD is a time difference value between a time at which the AN receives the SRS and a time at which the AN transmits the PRS.
Dependencies are inferred from the claim text.