Prioritization of inter-UE coordination information
A user equipment (UE) determines that a first transmission or first reception of a first sidelink transmission comprising inter-UE coordination information will overlap in time with a second reception or a second transmission of a second sidelink transmission. The UE transmits or receives a higher priority sidelink transmission among the first sidelink transmission comprising the inter-UE coordination information and the second sidelink transmission.
1 . An apparatus for wireless communication at a user equipment (UE), comprising:
memory; and
at least one processor coupled to the memory and configured to:
determine a first priority of a first sidelink transmission of inter-UE coordination information that indicates at least one of a set of preferred resources for use by a different UE based on sensing at the UE, a set of non-preferred resources for use by the different UE based on the sensing at the UE, or collision information for two transmitting UEs, wherein, based on the inter-UE coordination information being included in the first sidelink transmission that is multiplexed with a third sidelink transmission, the first priority is determined based on one of:
the third sidelink transmission with which the inter-UE coordination information is multiplexed, or
a highest priority between priorities associated with the inter-UE coordination information and the third sidelink transmission with which the inter-UE coordination information is multiplexed;
determine that a first transmission or first reception, at the UE, of the first sidelink transmission comprising the inter-UE coordination information will overlap in time with a second reception or a second transmission, at the UE, of a second sidelink transmission; and
transmit or receive, at the UE, a higher priority sidelink transmission among the first sidelink transmission comprising the inter-UE coordination information and the second sidelink transmission.
2 . The apparatus of claim 1 , wherein the first priority for the first sidelink transmission comprising the inter-UE coordination information is based on a sidelink message associated with the inter-UE coordination information.
3 . The apparatus of claim 1 , wherein the at least one processor is further configured to:
receive a request triggering the inter-UE coordination information, wherein a priority of the inter-UE coordination information is based on information comprised in the request triggering the inter-UE coordination information.
4 . The apparatus of claim 1 , further comprising:
at least one transceiver coupled to the at least one processor, wherein the at least one processor is further configured to:
compare the first priority for the first sidelink transmission comprising the inter-UE coordination information to a second priority for the second sidelink transmission to determine the higher priority sidelink transmission to transmit or receive.
5 . The apparatus of claim 1 , wherein the at least one processor is further configured to:
receive a prior configuration of a priority associated with the inter-UE coordination information.
6 . The apparatus of claim 1 , wherein the inter-UE coordination information indicates at least one of:
sensing information associated with one or more sidelink messages,
candidate resources for the one or more sidelink messages, or
a half-duplex conflict between multiple sidelink messages.
7 . The apparatus of claim 1 , wherein the inter-UE coordination information indicates a resource collision of multiple sidelink messages, and the first priority of the first sidelink transmission is based on the highest priority among the multiple sidelink messages involved in the resource collision.
8 . The apparatus of claim 1 , wherein the at least one processor is further configured to:
multiplex the inter-UE coordination information with the third sidelink transmission, wherein the first priority of the first sidelink transmission is based on a second priority of the third sidelink transmission with which the inter-UE coordination information is multiplexed.
9 . The apparatus of claim 1 , wherein the at least one processor is further configured to:
multiplex the inter-UE coordination information with the third sidelink transmission, wherein the first priority of the first sidelink transmission is based on the highest priority between the priorities associated with the inter-UE coordination information and a second priority associated with the third sidelink transmission with which the inter-UE coordination information is multiplexed.
10 . The apparatus of claim 1 , wherein the at least one processor is further configured to:
skip transmission or reception of a lower priority sidelink transmission among the first sidelink transmission comprising the inter-UE coordination information and the second sidelink transmission.
11 . The apparatus of claim 10 , wherein to skip the transmission or the reception of, the at least one processor is configured to:
skip the transmission of the lower priority sidelink transmission among the first sidelink transmission comprising the inter-UE coordination information and the second sidelink transmission if the transmission of the lower priority sidelink transmission would exceed a limit on simultaneous transmission.
12 . The apparatus of claim 1 , wherein the inter-UE coordination information indicates the set of preferred resources for sidelink transmission to UE, and wherein the first priority of the first sidelink transmission that includes the inter-UE coordination information is based on the highest priority between the priorities associated with the inter-UE coordination information and the third sidelink transmission with which the inter-UE coordination information is multiplexed.
13 . The apparatus of claim 1 , wherein the inter-UE coordination information indicates the set of non-preferred resources for sidelink transmission to UE, and wherein the first priority of the first sidelink transmission that includes the inter-UE coordination information is based on the highest priority between the priorities associated with the inter-UE coordination information and the third sidelink transmission with which the inter-UE coordination information is multiplexed.
14 . The apparatus of claim 1 , wherein the inter-UE coordination information indicates the collision information for the two transmitting UEs, and wherein the first priority of the first sidelink transmission that includes the inter-UE coordination information is based on the highest priority between the priorities associated with the inter-UE coordination information and the third sidelink transmission with which the inter-UE coordination information is multiplexed.
15 . A method of wireless communication at a user equipment (UE), comprising:
determining a first priority of a first sidelink transmission of inter-UE coordination information that indicates at least one of a set of preferred resources for use by a different UE based on sensing at the UE, a set of non-preferred resources for use by the different UE based on the sensing at the UE, or collision information for two transmitting UEs, wherein, based on the inter-UE coordination information being included in the first sidelink transmission that is multiplexed with a third sidelink transmission, the first priority is determined based on one of:
the third sidelink transmission with which the inter-UE coordination information is multiplexed, or
a highest priority between priorities associated with the inter-UE coordination information and the third sidelink transmission with which the inter-UE coordination information is multiplexed;
determining that a first transmission or first reception, at the UE, of the first sidelink transmission comprising the inter-UE coordination information will overlap in time with a second reception or a second transmission, at the UE, of a second sidelink transmission; and
transmitting or receiving, at the UE, a higher priority sidelink transmission among the first sidelink transmission comprising the inter-UE coordination information and the second sidelink transmission.
16 . The method of claim 15 , wherein the first priority for the first sidelink transmission comprising the inter-UE coordination information is based on a sidelink message associated with the inter-UE coordination information.
17 . The method of claim 16 , further comprising:
receiving a request triggering the inter-UE coordination information, wherein a priority of the inter-UE coordination information is based on information comprised in the request triggering the inter-UE coordination information or a prior configuration of the priority associated with the inter-UE coordination information.
18 . The method of claim 15 , further comprising:
comparing the first priority for the first sidelink transmission comprising the inter-UE coordination information to a second priority for the second sidelink transmission to determine the higher priority sidelink transmission to transmit or receive.
19 . The method of claim 15 , further comprising:
receiving a prior configuration of priority information associated with the inter-UE coordination information.
20 . The method of claim 15 , further comprising:
multiplexing the inter-UE coordination information with the third sidelink transmission, wherein the first priority of the first sidelink transmission is based on a second priority of the third sidelink transmission with which the inter-UE coordination information is multiplexed.
21 . The method of claim 15 , further comprising:
multiplexing the inter-UE coordination information with the third sidelink transmission, wherein the first priority of the first sidelink transmission is based on the highest priority between the priorities associated with the inter-UE coordination information and a second priority associated with the third sidelink transmission with which the inter-UE coordination information is multiplexed.
22 . An apparatus for wireless communication at a user equipment (UE), comprising:
memory; and
at least one processor coupled to the memory and configured to:
determine a priority for a sidelink transmission comprising inter-UE coordination information that indicates candidate resources available for one or more future sidelink transmissions, wherein based on the inter-UE coordination information being multiplexed with a second sidelink transmission, the priority of the sidelink transmission that includes the inter-UE coordination information is based on one of:
the second sidelink transmission with which the inter-UE coordination information is multiplexed, or
a highest priority between priorities associated with the inter-UE coordination information and the second sidelink transmission with which the inter-UE coordination information is multiplexed; and
transmit the sidelink transmission with an indication of the determined priority.
23 . The apparatus of claim 22 , wherein the indication of the determined priority is in sidelink control information (SCI) for the sidelink transmission comprising the inter-UE coordination information.
24 . The apparatus of claim 22 , wherein the at least one processor is further configured to:
receive a configuration of priority information associated with the inter-UE coordination information.
25 . The apparatus of claim 22 , wherein the priority is based on a sidelink message associated with the inter-UE coordination information.
26 . The apparatus of claim 25 , wherein the inter-UE coordination information further indicates at least one of:
sensing information associated with one or more sidelink messages, or
resources for the one or more sidelink messages.
27 . The apparatus of claim 25 , wherein the inter-UE coordination information indicates a half-duplex conflict between multiple sidelink messages, and the priority is based on the highest priority among the multiple sidelink messages involved in the half-duplex conflict.
28 . The apparatus of claim 25 , wherein the inter-UE coordination information indicates a resource collision of multiple sidelink messages, and the priority is based on the highest priority among the multiple sidelink messages involved in the resource collision.
29 . The apparatus of claim 22 , wherein the sidelink transmission comprises the inter-UE coordination information multiplexed with the second sidelink transmission, and the priority is based on the second sidelink transmission with which the inter-UE coordination information is multiplexed.
30 . The apparatus of claim 22 , wherein the inter-UE coordination information indicates preferred candidate resources.
31 . The apparatus of claim 22 , wherein the inter-UE coordination information indicates non-preferred candidate resources.
32 . The apparatus of claim 22 , wherein the priority is based on the highest priority associated with the inter-UE coordination information or the second sidelink transmission with which the inter-UE coordination information is multiplexed.
33 . A method of wireless communication at a user equipment (UE), comprising:
determining a priority for a sidelink transmission comprising inter-UE coordination information that indicates candidate resources available for one or more future sidelink transmissions, wherein based on the inter-UE coordination information being multiplexed with a second sidelink transmission, the priority of the sidelink transmission that includes the inter-UE coordination information is based on one of:
the second sidelink transmission with which the inter-UE coordination information is multiplexed, or
a highest priority between priorities associated with the inter-UE coordination information and the second sidelink transmission with which the inter-UE coordination information is multiplexed; and
transmitting the sidelink transmission with an indication of the determined priority.
34 . The method of claim 33 , wherein the UE indicates the determined priority in sidelink control information (SCI) for the sidelink transmission comprising the inter-UE coordination information.
35 . The method of claim 33 , further comprising:
receiving a request triggering the inter-UE coordination information, wherein the priority of the inter-UE coordination information is based on information comprised in the request triggering the inter-UE coordination information.
36 . The method of claim 33 , further comprising:
multiplexing the inter-UE coordination information with the second sidelink transmission, wherein the priority is determined based on a second priority of the second sidelink transmission with which the inter-UE coordination information is multiplexed.
37 . The method of claim 33 , further comprising:
multiplexing the inter-UE coordination information with the second sidelink transmission, wherein the priority of the sidelink transmission is based on the highest priority between the priorities associated with the inter-UE coordination information and the second sidelink transmission with which the inter-UE coordination information is multiplexed.