Priority-based access for channel occupancy time
A method of wireless communication performed by a user equipment (UE), the method comprising identifying a priority level associated with the UE; and performing a clear channel assessment for a channel occupancy time (COT) according to an offset parameter, wherein the offset parameter is based on the priority level associated with the UE.
1 . A method of wireless communication performed by a user equipment (UE), the method comprising:
identifying a first priority level associated with the UE, wherein the first priority level is higher than a second priority level associated with a second UE; and
performing a clear channel assessment for a channel occupancy time (COT) according to an offset parameter, wherein:
the offset parameter is based on the first priority level, and
the performing the clear channel assessment for the COT is earlier than performance of a clear channel assessment by the second UE based on the first priority level being higher than the second priority level.
2 . The method of claim 1 , wherein the identifying the first priority level comprises:
identifying the first priority level based on a priority level of data associated with the UE.
3 . The method of claim 2 , wherein the identifying the first priority level comprises:
identifying the first priority level based on a priority level of data to be transmitted in the COT.
4 . The method of claim 1 , wherein the identifying the first priority level comprises:
identifying the first priority level based on a type of the UE.
5 . The method of claim 1 , wherein the offset parameter comprises a time period that begins at a start of a fixed frame period.
6 . The method of claim 1 , wherein the performing the clear channel assessment for the COT comprises:
performing the clear channel assessment for the COT with an earlier offset parameter based on a priority level of data associated with the UE being higher than a priority level of data associated with the second UE.
7 . The method of claim 1 , further comprising:
increasing the first priority level based on the UE having data for retransmission; wherein:
the performing the clear channel assessment for the COT is performed with an earlier offset parameter based on the UE having data for retransmission than the UE having data for a new transmission.
8 . The method of claim 1 , wherein the offset parameter comprises a symbol index.
9 . The method of claim 8 , wherein the performing the clear channel assessment for the COT further comprises:
performing the clear channel assessment for the COT based on a second offset parameter, wherein the second offset parameter comprises a time offset of a plurality of time offsets associated with the symbol index.
10 . The method of claim 9 , further comprising:
selecting the time offset from the plurality of time offsets associated with the symbol index.
11 . The method of claim 1 , further comprising:
receiving, from a base station (BS), multiple offset parameters, wherein each offset parameter of the multiple offset parameters is associated with a priority level of data associated with the UE.
12 . The method of claim 1 , further comprising:
transmitting a receiver protection signal based upon a successful clear channel assessment.
13 . The method of claim 12 , wherein the transmitting the receiver protection signal comprises:
transmitting the receiver protection signal during a time period associated with the performance of the clear channel assessment by the second UE.
14 . The method of claim 13 , further comprising:
receiving, from a base station (BS), an indicator that indicates a location of the clear channel assessment performed by the second UE.
15 . The method of claim 14 , wherein the receiving the indicator that indicates the location of the clear channel assessment comprises:
receiving the indicator via at least one of downlink control information or a radio resource configuration.
16 . A method of wireless communication performed by a base station (BS), the method comprising:
receiving, from a first user equipment (UE), a signal; and
transmitting, based on the receiving the signal and based on a priority level associated with the first UE being higher than a priority level associated with a second UE, a receiver protection signal during a time period associated with a clear channel assessment of the second UE.
17 . The method of claim 16 , wherein the receiver protection signal is configured to cause the clear channel assessment of the second UE to fail.
18 . The method of claim 16 , wherein the receiver protection signal comprises a reference signal.
19 . The method of claim 16 , further comprising:
transmitting, to the first UE, multiple offset parameters, wherein the multiple offset parameters are based on a priority level of data associated with the first UE.
20 . A user equipment (UE) for wireless communication, comprising:
one or more antennas;
one or more memories; and
one or more processors coupled to the one or more memories, the one or more processors individually or collectively configured to:
identify a first priority level associated with the UE, wherein the first priority level is higher than a second priority level associated with a second UE; and
perform a clear channel assessment for a channel occupancy time (COT) according to an offset parameter, wherein:
the offset parameter is based on the first priority level, and
performance of the clear channel assessment for the COT is earlier than performance of a clear channel assessment by the second UE based on the first priority level being higher than the second priority level.
21 . The UE of claim 20 , wherein the one or more processors are further individually or collectively configured to:
identify the first priority level based on at least one of:
a priority level of data to be transmitted in the COT; or
a type of the UE.
22 . The UE of claim 20 , wherein the offset parameter comprises a time period that begins at a start of a fixed frame period.
23 . The UE of claim 20 , wherein the one or more processors are further individually or collectively configured to:
increase the first priority level based on the UE having data for retransmission; and
perform the clear channel assessment for the COT with an earlier offset parameter based on the UE having data for retransmission.
24 . The UE of claim 20 , wherein the one or more processors are further individually or collectively configured to:
perform the clear channel assessment for the COT based on a second offset parameter, wherein the second offset parameter comprises a time offset of a plurality of time offsets associated with a symbol index.
25 . The UE of claim 20 , wherein the one or more processors are further individually or collectively configured to:
receive, from a base station (BS), multiple offset parameters, wherein each offset parameter of the multiple offset parameters is associated with a priority level of data associated with the UE; and
receive, from the BS, an indicator that indicates a location of a clear channel assessment of a second UE.
26 . The UE of claim 20 , wherein the one or more processors are further individually or collectively configured to:
transmit a receiver protection signal based upon a successful clear channel assessment during a time period associated with a clear channel assessment of a second UE.
27 . The UE of claim 20 , wherein, to perform the clear channel assessment for the COT, the one or more processors are individually or collectively configured to:
perform the clear channel assessment for the COT with an earlier offset parameter based on a priority level of data associated with the UE being higher than a priority level of data associated with the second UE.
28 . A base station (BS) for wireless communication, comprising:
one or more antennas;
one or more memories; and
one or more processors coupled to the one or more memories, the one or more processors individually or collectively configured to:
receive, from a first user equipment (UE), a signal; and
transmit, based on the receiving the signal and based on a priority level associated with the first UE being higher than a priority level associated with a second UE, a receiver protection signal during a time period associated with a clear channel assessment of the second UE.
29 . The BS of claim 28 , wherein the receiver protection signal is configured to cause the clear channel assessment of the second UE to fail.
30 . The BS of claim 28 , wherein the one or more processors are further individually or collectively configured to:
transmit, to the first UE, multiple offset parameters, wherein each offset parameter of the multiple offset parameters is based on a priority level of data associated with the first UE.