Priority based channel access procedure for sidelink communications
AssigneeQUALCOMM Incorporated
InventorsQing Li, Ozcan Ozturk, Junyi Li, Sherif Elazzouni, Hong Cheng
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Abstract
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may receive, from a user equipment (UE), an indication of a quality of service (QoS) parameter associated with a sidelink communication. The network node may map the QoS parameter to a sidelink channel access priority class (SL CAPC) associated with a sidelink channel access procedure for the sidelink communication. The network node may transmit, to the UE, an indication of the SL CAPC associated with the sidelink channel access procedure for the sidelink communication. Numerous other aspects are provided.
Claims24
A network node for wireless communication, comprising:
- at least one memory;
- and
- at least one processor communicatively coupled with the at least one memory, the at least one processor configured to cause the network node to:
- map a plurality of PC5 New Radio (NR) standardized quality of service (QoS) identifiers (PQIs) to a plurality of sidelink channel access priority classes (SL CAPCs);
- receive, from a user equipment (UE), an indication of a PQI associated with a sidelink communication, wherein the plurality of PQIs include the PQI;
- determine a SL CAPC, associated with a sidelink channel access procedure for the sidelink communication, based at least in part on a mapping of the PQI to the SL CAPC, wherein the plurality of SL CAPCs include the SL CAPC, and wherein the mapping of the plurality of PQIs to the plurality of SL CAPCs include the mapping of the PQI to the SL CAPC;
- and
- transmit, to the UE, an indication of the SL CAPC associated with the sidelink channel access procedure for the sidelink communication.
A user equipment (UE) for wireless communication, comprising:
- at least one memory;
- and
- at least one processor communicatively coupled with the at least one memory, the at least one processor configured to cause the UE to:
- transmit, to a network node, an indication of a PC5 New Radio (NR) standardized quality of service (QoS) identifier (POI) associated with a sidelink communication;
- receive, from the network node, an indication of a sidelink channel access priority class (SL CAPC) mapped to the POI;
- perform a sidelink listen-before-talk (LBT) procedure associated with a sidelink channel based at least in part on the SL CAPC;
- and
- transmit, to another UE, the sidelink communication via the sidelink channel based at least in part on the sidelink LBT procedure.
A user equipment (UE) for wireless communication, comprising:
- at least one memory;
- and
- at least one processor communicatively coupled with the at least one memory, the at least one processor configured to cause the UE to:
- transmit, to a network node, sidelink UE information indicating at least one of a capability to operate in one or more sidelink unlicensed frequency bands or a preferred sidelink unlicensed frequency band list;
- receive, from the network node, an indication of one or more mapping lookup tables that map a plurality of PC5 New Radio (NR) standardized quality of service (QoS) identifiers (PQIs) to a plurality of sidelink channel access priority classes (SL CAPCs);
- identify a first SL CAPC, from the plurality of SL CAPCs, based on a first PQI, from the plurality of PQIs, associated with a sidelink communication;
- perform a sidelink listen-before-talk (LBT) procedure associated with a sidelink channel based at least in part on the first SL CAPC associated with the sidelink communication;
- and
- transmit, to another UE, the sidelink communication via the sidelink channel based at least in part on the sidelink LBT procedure.
A user equipment (UE) for wireless communication, comprising:
- at least one memory;
- and
- at least one processor communicatively coupled with the at least one memory, the at least one processor configured to cause the UE to:
- receive, from a second UE, an indication of one or more mapping lookup tables that map a plurality of PC5 New Radio (NR) standardized quality of service (QoS) identifiers (PQIs) to a plurality of sidelink channel access priority classes (SL CAPCs);
- receive, from the second UE, an indication of a first SL CAPC, from the plurality of SL CAPCs, that maps to a first POI, from the plurality of PQIs, associated with a sidelink communication;
- perform a sidelink listen-before-talk (LBT) procedure associated with a sidelink channel based at least in part on the first SL CAPC being mapped to the first PQI associated with the sidelink communication;
- and
- transmit, to the other UE, the sidelink communication via the sidelink channel based at least in part on the sidelink LBT procedure.
Dependencies are inferred from the claim text.