Partial sensing-based resource allocation
A transmitting wireless transmit/receive unit (Tx WTRU) may receive configuration information that indicates one or more parameters. The one or more parameters may be associated with resource selection. The Tx WTRU may determine a first resource selection window and a second resource selection window. The first resource selection window may be associated with an active time of a receiving wireless transmit/receive unit (Rx WTRU). The second resource selection window may be associated with an inactive time of the Rx WTRU. The Tx WTRU may determine a first number of candidate resources associated with the first resource selection window. The Tx WTRU may determine a first number of candidate resources associated with the second resource selection window. In examples, the Tx WTRU may increase the first number of candidate resources associated with the first resource selection window to a second number of candidate resources associated with the first resource selection window.
1. A wireless transmit/receive unit (WTRU), comprising:
a processor, the processor configured to:
receive configuration information that indicates channel busy ratio (CBR) measurement information, wherein the CBR measurement information comprises a default CBR value and a measurement slot threshold;
perform measurements for CBR determination within a CBR measurement window;
determine a number of slots associated with the performed measurements that are within the CBR measurement window;
select a CBR value based on whether the determined number of slots within the CBR measurement window is less than the measurement slot threshold, wherein the selected CBR value is the default CBR value if the determined number of slots within the CBR measurement window is less than the measurement slot threshold, and wherein the selected CBR value is a measured CBR value if the determined number of slots within the CBR measurement window is greater than or equal to the measurement slot threshold;
determine a transmission parameter based on the selected CBR value; and
send a transmission using the transmission parameter.
2. The WTRU of claim 1 , wherein the processor is further configured to:
determine a quality of service (QoS) associated with a transport block, wherein the CBR value is further selected based on the QoS associated with the transport block.
3. The WTRU of claim 1 , wherein the processor is further configured to:
determine whether periodic reservation is enabled for a resource pool, wherein the CBR value is further selected based on whether periodic reservation is enabled for the resource pool.
4. The WTRU of claim 1 , wherein the default CBR value is associated with a resource pool.
5. The WTRU of claim 1 , wherein the number of slots associated with the performed measurements that are within the CBR measurement window is determined based on one or more of whether periodic reservation is enabled, a quality of service (QoS) associated with a transport block (TB), a hybrid automatic repeat request (HARQ) type associated with the TB, or whether sidelink discontinuous reception is enabled.
6. The WTRU of claim 1 , wherein the processor is further configured to:
determine the measured CBR value, wherein the measured CBR is determined based on the determined number of slots associated with the performed measurements that are within the CBR measurement window.
7. The WTRU of claim 1 , wherein the transmission parameter is one or more of a number of retransmissions, a number of subchannels for a transmission, a transmission power, or a modulation and coding scheme.
8. A method comprising:
receiving configuration information that indicates channel busy ratio (CBR) measurement information, wherein the CBR measurement information comprises a default CBR value and a measurement slot threshold;
performing measurements for CBR determination with a CBR measurement window;
determining a number of slots associated with the performed measurements that are within the CBR measurement window;
selecting a CBR value based on whether the determined number of slots within the CBR measurement window is less than the measurement slot threshold, wherein the selected CBR value is the default CBR value if the determined number of slots within the CBR measurement window is less than the measurement slot threshold, and wherein the selected CBR value is a measured CBR value if the determined number of slots within the CBR measurement window is greater than or equal to the measurement slot threshold;
determining a transmission parameter based on the selected CBR value; and
sending a transmission using the transmission parameter.
9. The method of claim 8 , wherein the method further comprises:
determining a quality of service (QoS) associated with a transport block, wherein the CBR value is further selected based on the QoS associated with the transport block.
10. The method of claim 8 , wherein the method further comprises:
determining whether periodic reservation is enabled for a resource pool, wherein the CBR value is further selected based on whether periodic reservation is enabled for the resource pool.
11. The method of claim 8 , wherein the default CBR value is associated with a resource pool.
12. The method of claim 8 , wherein the number of slots associated with the performed measurements that are within the CBR measurement window is determined based on one or more of whether periodic reservation is enabled, a quality of service (QoS) associated with a transport block (TB), a hybrid automatic repeat request (HARQ) type associated with the TB, whether sidelink discontinuous reception is enabled.
13. The method of claim 8 , wherein the method further comprises:
determining the measured CBR value, wherein the measured CBR is determined based on the determined number of slots associated with the performed measurements that are within the CBR measurement window.
14. The method of claim 8 , wherein the transmission parameter is one or more of a number of retransmissions, a number of subchannels for a transmission, a transmission power, or a modulation and coding scheme.