Method and device for determining sidelink transmit power in NR V2X
AssigneeLG Electronics Inc.
InventorsSeungmin Lee, Hanbyul Seo
Life of this patent
Estimating the term…
Abstract
Provided are a method by which a first device performs wireless communication, and a device for supporting same. The method can comprise the steps of: transmitting one or more reference signals (RSs) to a second device on the basis of first transmit power; receiving, from the second device, information related to a channel state measured on the basis of the one or more RSs; changing the first transmit power to second transmit power on the basis of the information related to the channel state; and transmitting the one or more RSs to the second device on the basis of the second transmit power.
Claims20
A method for performing wireless communication by a first device, the method comprising:
- transmitting, to a second device, sidelink control information (SCI);
- transmitting, to the second device, a demodulation reference signal (DMRS);
- obtaining reference signal power from transmit power layer-3 (L3) filtered using L3 filter coefficient information;
- receiving, from the second device, a reference signal received power (RSRP) obtained from the DMRS;
- obtaining a sidelink (SL) pathloss by subtracting the RSRP from the reference signal power;
- determining power for a physical sidelink shared channel (PSSCH) transmission based on the SL pathloss;
- and
- performing the PSSCH transmission based on the power.
A first device adapted to perform wireless communication, the first device comprising:
- one or more memories storing instructions;
- one or more transceivers;
- and
- one or more processors connected to the one or more memories and the one or more transceivers, wherein the one or more processors execute the instructions to:
- transmit, to a second device, sidelink control information (SCI);
- transmit, to the second device, a demodulation reference signal (DMRS);
- obtain reference signal power from transmit power layer-3 (L3) filtered using L3 filter coefficient information;
- receive, from the second device, a reference signal received power (RSRP) obtained from the DMRS;
- obtain a sidelink (SL) pathloss by subtracting the RSRP from the reference signal power;
- determine power for a physical sidelink shared channel (PSSCH) transmission based on the SL pathloss;
- and
- perform the PSSCH transmission based on the power.
A processing device adapted to control a first device, the processing device comprising:
- one or more processors;
- and
- one or more memories operably connected to the one or more processors and storing instructions, wherein the one or more processors execute the instructions to:
- transmit, to a second device, sidelink control information (SCI);
- transmit, to the second device, a demodulation reference signal (DMRS);
- obtain reference signal power from transmit power layer-3 (L3) filtered using L3 filter coefficient information;
- receive, from the second device, a reference signal received power (RSRP) obtained from the DMRS;
- obtain a sidelink (SL) pathloss by subtracting the RSRP from the reference signal power;
- determine power for a physical sidelink shared channel (PSSCH) transmission based on the SL pathloss;
- and
- perform the PSSCH transmission based on the power.
Dependencies are inferred from the claim text.