Collision avoidance of half-duplex resource selection

A method of wireless communication at a user equipment (UE), the method comprising:

• identifying that the UE is configured for semi-persistently scheduled (SPS) transmissions via a configuration of periodic SPS resources on a shared channel accessed in a half-duplex manner;
• detecting a collision, an energy level above a first threshold, a total received power above a second threshold, or any combination thereof on an SPS resource of the periodic SPS resources;
• adjusting a probability associated with refraining from performing an SPS resource reselection process based at least in part on whether a level of congestion of all subchannels and subframes of a total quantity of periodic SPS resources satisfies a third threshold;
• triggering, based at least in part on the detecting and the probability, the UE to participate in the SPS resource reselection process to update the configuration of periodic SPS resources;
• measuring signals indicative of potential interference during one or more subframes that include the periodic SPS resources;
• identifying, based at least in part on the measuring, potential interference on a portion of frequency resources in a subframe of the one or more subframes;
• and
• excluding an entirety of the subframe from the SPS resource reselection process based at least in part on the potential interference being identified on the portion of frequency resources in the subframe.

An apparatus for wireless communication at a user equipment (UE), comprising:

• a processor, memory in electronic communication with the processor;
• and instructions stored in the memory and executable by the processor to cause the apparatus to:
• identify that the UE is configured to transmit via a plurality of periodic semi-persistently scheduled (SPS) resources on a shared channel accessed in a half-duplex manner;
• mute transmission of a scheduled message during at least one of the SPS resources in order to monitor for transmissions from another device during the at least one SPS resource based at least in part on a probability parameter whose value is based on occurrence of a triggering event, wherein the muting comprises skipping transmission of the scheduled message during the at least one SPS resource;
• detect a transmission from the other device on the shared channel during the at least one SPS resource;
• and
• adjust, based at least in part on detection of the transmission from the other device during the at least one SPS resource, transmission of the scheduled message to a different resource in order to avoid overlapping transmissions from the other device.

An apparatus wireless communication at a user equipment (UE), comprising:

• a processor,
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• identify that the UE is configured for semi-persistently scheduled (SPS) transmissions via a configuration of periodic SPS resources on a shared channel accessed in a half-duplex manner;
• detect a collision, an energy level above a first threshold, a total received power above a second threshold, or any combination thereof on an SPS resource of the periodic SPS resources;
• adjust a probability associated with refraining from performing an SPS resource reselection process based at least in part on whether a level of congestion of all subchannels and subframes of a total quantity of periodic SPS resources satisfies a third threshold;
• trigger, based at least in part on the detecting and the probability, the UE to participate in the SPS resource reselection process to update the configuration of periodic SPS resources;
• measure signals indicative of potential interference during one or more subframes that include the periodic SPS resources;
• identify, based at least in part on the measuring, potential interference on a portion of frequency resources in a subframe of the one or more subframes;
• and
• exclude an entirety of the subframe from the SPS resource reselection process based at least in part on the potential interference being identified on the portion of frequency resources in the subframe.

An apparatus for wireless communication at a user equipment (UE), comprising:

• means for identifying that the UE is configured to transmit via a plurality of periodic semi-persistently scheduled (SPS) resources on a shared channel accessed in a half-duplex manner;
• means for muting transmission of a scheduled message during at least one of the SPS resources in order to monitor for transmissions from another device during the at least one SPS resource based at least in part on a probability parameter whose value is based on occurrence of a triggering event, wherein the muting comprises skipping transmission of the scheduled message during the at least one SPS resource;
• means for detecting a transmission from the other device on the shared channel during the at least one SPS resource;
• and
• means for adjusting, based at least in part on detection of the transmission from the other device during the at least one SPS resource, transmission of the scheduled message to a different resource in order to avoid overlapping transmissions from the other device.

An apparatus for wireless communication at a user equipment (UE), the method comprising, comprising:

• means for identifying that the UE is configured for semi-persistently scheduled (SPS) transmissions via a configuration of periodic SPS resources on a shared channel accessed in a half-duplex manner;
• means for detecting a collision, an energy level above a first threshold, a total received power above a second threshold, or any combination thereof on an SPS resource of the periodic SPS resources;
• means for adjusting a probability associated with refraining from performing an SPS resource reselection process based at least in part on whether a level of congestion of all subchannels and subframes of a total quantity of periodic SPS resources satisfies a third threshold;
• means for triggering, based at least in part on the detecting and the probability, the UE to participate in the SPS resource reselection process to update the configuration of periodic SPS resources;
• means for measuring signals indicative of potential interference during one or more subframes that include the periodic SPS resources;
• means for identifying, based at least in part on the measuring, potential interference on a portion of frequency resources in a subframe of the one or more subframes;
• and
• means for excluding an entirety of the subframe from the SPS resource reselection process based at least in part on the potential interference being identified on the portion of frequency resources in the subframe.

A non-transitory computer-readable medium storing code for wireless communication at a user equipment (UE), the code comprising instructions executable by a processor to:

• identify that the UE is configured to transmit via a plurality of periodic semi-persistently scheduled (SPS) resources on a shared channel accessed in a half-duplex manner;
• mute transmission of a scheduled message during at least one of the SPS resources in order to monitor for transmissions from another device during the at least one SPS resource based at least in part on a probability parameter whose value is based on occurrence of a triggering event, wherein the muting comprises skipping transmission of the scheduled message during the at least one SPS resource;
• detect a transmission from the other device on the shared channel during the at least one SPS resource;
• and
• adjust, based at least in part on detection of the transmission from the other device during the at least one SPS resource, the transmission of the scheduled message to a different resource in order to avoid overlapping transmissions from the other device.

A non-transitory computer-readable medium storing code wireless communication at a user equipment (UE), the code comprising instructions executable by a processor to:

• identify that the UE is configured for semi-persistently scheduled (SPS) transmissions via a configuration of periodic SPS resources on a shared channel accessed in a half-duplex manner;
• detect a collision, an energy level above a first threshold, a total received power above a second threshold, or any combination thereof on an SPS resource of the periodic SPS resources;
• adjusting a probability associated with refraining from performing an SPS resource reselection process based at least in part on whether a level of congestion of all subchannels and subframes of a total quantity of periodic SPS resources satisfies a third threshold;
• trigger, based at least in part on the detecting and the probability, the UE to participate in the SPS resource reselection process to update the configuration of periodic SPS resources;
• measure signals indicative of potential interference during one or more subframes that include the periodic SPS resources;
• identify, based at least in part on the measuring, potential interference on a portion of frequency resources in a subframe of the one or more subframes;
• and
• exclude an entirety of the subframe from the SPS resource reselection process based at least in part on the potential interference being identified on the portion of frequency resources in the subframe.