Method and apparatus for scheduling plurality of resources in NR V2X

A method for performing, by a first device, wireless communication, the method comprising:

• determining a first physical sidelink shared channel (PSSCH) resource and a second PSSCH resource;
• and
• transmitting, to a second device, a sidelink control information (SCI) including information related to a frequency domain of the second PSSCH resource, based on a first physical sidelink control channel (PSCCH) resource related to the first PSSCH resource,
• wherein the information related to the frequency domain of the second PSSCH resource is obtained based on a number of subchannels included in a resource pool, an index of a starting subchannel of the second PSSCH resource, and a number of subchannels allocated for the second PSSCH resource,
• wherein the information related to the frequency domain of the second PSSCH resource is obtained based on following equations,
• the information related to the frequency domain=S2, if m=1
• the information related to the frequency domain=
• ∑
• n
• =
• 1
• m
• -
• 1
• ⁢
• (
• M
• +
• 1
• -
• n
• )
• +
• S
• 2
• ,
• if
• ⁢
• ⁢
• m
• >
• 1
• wherein, m is the number of subchannels allocated for the second PSSCH resource, M is the number of subchannels included in the resource pool, and S2 is the index of the starting subchannel of the second PSSCH resource.

A first device configured 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:
• determine a first physical sidelink shared channel (PSSCH) resource, a second PSSCH resource and a third PSSCH resource;
• and
• transmit, to a second device, a sidelink control information (SCI) including information related to frequency domains of the second PSSCH resource and the third PSSCH resource, based on a first physical sidelink control channel (PSCCH) resource related to the first PSSCH resource,
• wherein the information related to frequency domains is obtained based on a number of subchannels included in a resource pool, an index of a starting subchannel of the second PSSCH resource, an index of a starting subchannel of the third PSSCH resource, and a number of subchannels allocated for each of PSSCH resources,
• wherein the information related to frequency domains is a zero or a positive integer,
• wherein the information related to frequency domains increases based on an increase in the index of the starting subchannel of the second PSSCH resource or the index of the starting subchannel of the third PSSCH resource, and
• wherein the information related to frequency domains increases based on an increase in the number of sub channels allocated for each of the PSSCH resources.