Channel occupancy time-structure information indication for new radio-unlicensed sidelink

An apparatus configured for wireless communication, comprising:

• means for establishing, by a user equipment (UE), a current channel occupancy time (COT) on a shared communication spectrum for UE transmissions in response to success of a listen before talk (LBT) procedure;
• means for generating, by the UE, a COT structure information (COT-SI) message including at least a remaining duration of the current COT and a set of time and frequency resources of the current COT, wherein the COT-SI further indicates an additional set of time and frequency resources reserved for communications by the UE;
• means for transmitting, by the UE, the COT-SI message to one or more neighboring UEs via sidelink transmission;
• and
• means for transmitting, by the UE, the UE transmissions within the set of time and frequency resources of the current COT,
• wherein the UE transmissions and the COT-SI message are transmitted within the additional set of time and frequency reserved resources,
• wherein the additional set of time and frequency reserved resources defines a shared resource region sharable by the UE and the one or more neighboring UEs and determined by a remaining set of time and frequency resources outside of the additional set of time and frequency reserved resources and within the set of time and frequency resources of the current COT.

A non-transitory computer-readable medium having program code recorded thereon, the program code comprising:

• program code executable by a computer for causing the computer to establish, by a user equipment (UE), a current channel occupancy time (COT) on a shared communication spectrum for UE transmissions in response to success of a listen before talk (LBT) procedure;
• program code executable by the computer for causing the computer to generate, by the UE, a COT structure information (COT-SI) message including at least a remaining duration of the current COT and a set of time and frequency resources of the current COT, wherein the COT-SI further indicates an additional set of time and frequency resources reserved for communications by the UE;
• program code executable by the computer for causing the computer to transmit, by the UE, the COT-SI message to one or more neighboring UEs via sidelink transmission;
• and
• program code executable by the computer for causing the computer to transmit, by the UE, the UE transmissions within the set of time and frequency resources of the current COT,
• wherein the UE transmissions and the COT-SI message are transmitted within the additional set of time and frequency reserved resources,
• wherein the additional set of time and frequency reserved resources defines a shared resource region sharable by the UE and the one or more neighboring UEs and determined by a remaining set of time and frequency resources outside of the additional set of time and frequency reserved resources and within the set of time and frequency resources of the current COT.

An apparatus configured for wireless communication, the apparatus comprising:

• at least one processor;
• and
• a memory coupled to the at least one processor,
• wherein the at least one processor is configured:
• to establish, by a user equipment (UE), a current channel occupancy time (COT) on a shared communication spectrum for UE transmissions in response to success of a listen before talk (LBT) procedure;
• to generate, by the UE, a COT structure information (COT-SI) message including at least a remaining duration of the current COT and a set of time and frequency resources of the current COT;
• to transmit, by the UE, the COT-SI message to one or more neighboring UEs via sidelink transmission, wherein the COT-SI further indicates an additional set of time and frequency resources reserved for communications by the UE;
• and
• to transmit, by the UE, the UE transmissions within the set of time and frequency resources of the current COT,
• wherein the UE transmissions and the COT-SI message are transmitted within the additional set of time and frequency reserved resources,
• wherein the additional set of time and frequency reserved resources defines a shared resource region sharable by the UE and the one or more neighboring UEs and determined by a remaining set of time and frequency resources outside of the additional set of time and frequency reserved resources and within the set of time and frequency resources of the current COT.